Manufacturing method of laminated glass, laminated glass and vehicle

Abstract

The invention provides a manufacturing method of laminated glass, the laminated glass and a vehicle. The manufacturing method of the laminated glass comprises the steps that a basic adhesive layer is provided, a hollow part is arranged on the basic adhesive layer, and the hollow part penetrates through the basic adhesive layer in the thickness direction of the basic adhesive layer to form a middle layer. Providing a filling layer, arranging the filling layer in the hollow part, and fixing the filling layer relative to the middle layer; wherein the visible light transmittance of the filling layer is greater than the visible light transmittance of the middle layer. And providing a heating wire, and embedding the heating wire into the filling layer and the middle layer to obtain a first laminated structure. Providing a first glass plate and a second glass plate, and sequentially laminating the first glass plate, the first laminated structure and the second glass plate to obtain the laminated glass. According to the manufacturing method of the laminated glass, the heating wire of the camera window can be prevented from emerging, and the definition of a picture shot by a camera is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a method for manufacturing laminated glass, laminated glass, and a vehicle. Background Technology

[0002] With the rapid development of the automotive industry, consumers have increasingly higher demands for vehicle performance. To provide drivers with greater visibility or to offer driver assistance features, cameras are often added inside vehicles. Installing a camera window in laminated glass and filling it with a transparent adhesive can improve the clarity of the camera's images. However, in existing technologies, the transparent adhesive filling the camera window is prone to misalignment during the lamination process, causing the heating wires in the camera window to float out or become twisted. This affects the clarity of the images captured by the camera and impacts the appearance of the laminated glass. Summary of the Invention

[0003] This application provides a laminated glass and its manufacturing method, as well as a vehicle, which can prevent the heating wire of the camera window from floating out and improve the clarity of the image captured by the camera.

[0004] In a first aspect, this application provides a method for manufacturing laminated glass. The method for manufacturing laminated glass includes:

[0005] A base adhesive layer is provided, and a hollow portion is provided in the base adhesive layer. The hollow portion penetrates the base adhesive layer along the thickness direction to form an intermediate layer.

[0006] A filling layer is provided, which is disposed within the cutout portion and fixed relative to the intermediate layer; wherein the visible light transmittance of the filling layer is greater than that of the intermediate layer;

[0007] A heating wire is provided and embedded within the filler layer and the intermediate layer to obtain a first laminated structure;

[0008] A first glass plate and a second glass plate are provided, and the first glass plate, the first laminated structure and the second glass plate are stacked in sequence to obtain the laminated glass.

[0009] In one possible implementation, the step "providing a fill layer, placing the fill layer within the cutout, and fixing the fill layer relative to the intermediate layer" includes:

[0010] A filler layer and an adhesive are provided, wherein the adhesive is disposed on the outer peripheral surface of the filler layer;

[0011] The filling layer with the adhesive is placed inside the hollow part, and the adhesive is bonded and fixed to the inner circumferential surface of the hollow part.

[0012] In one possible implementation, the adhesive comprises one or more of alcohol, water, and glue.

[0013] In one possible implementation, the step "providing a fill layer, placing the fill layer within the cutout, and fixing the fill layer relative to the intermediate layer" includes:

[0014] A filling layer is provided, and the filling layer is disposed within the hollow portion;

[0015] An adhesive is provided to be bonded to the surface of the filler layer and the surface of the intermediate layer, and is disposed around the edge of the filler layer.

[0016] In one possible implementation, the step "providing a filler layer, placing the filler layer within the cutout portion, and fixing the filler layer relative to the intermediate layer" further includes: heating the adhesive to melt-bond the adhesive with the filler layer and the intermediate layer.

[0017] In one possible implementation, the step "providing a fill layer, placing the fill layer within the cutout, and fixing the fill layer relative to the intermediate layer" includes:

[0018] A filling layer is provided, and the filling layer is disposed within the hollow portion;

[0019] The edges of the filling layer and the intermediate layer surrounding the cutout are heated to fuse them together.

[0020] In one possible implementation, the edges of the filler layer and the intermediate layer surrounding the edge of the cutout have multiple melting points, and the multiple melting points are spaced apart around the edge of the filler layer. The step "heating the edges of the filler layer and the intermediate layer surrounding the edge of the cutout" includes: heating the filler layer and the intermediate layer at the multiple melting points respectively.

[0021] In one possible implementation, the melting points are located on the surface of the filler layer facing the second glass plate and the surface of the intermediate layer facing the second glass plate.

[0022] In one possible implementation, some of the molten sites are located on the surface of the filler layer facing the second glass plate and the surface of the intermediate layer facing the second glass plate. Some of the molten sites are located on the surface of the filler layer facing the first glass plate and the surface of the intermediate layer facing the first glass plate.

[0023] In one possible implementation, the step "heating the edges of the filling layer and the edges of the intermediate layer surrounding the cutout" includes: heating the edges of the filling layer and the edges of the intermediate layer surrounding the cutout using a laser or a soldering iron.

[0024] In one possible implementation, the intermediate layer includes a first surface and a second surface, which are disposed opposite to each other along the thickness direction of the intermediate layer. Along the direction from the first surface to the second surface, the area of ​​the cutout portion in a cross-section perpendicular to the thickness direction of the intermediate layer gradually decreases. The filling layer includes a third surface and a fourth surface, which are disposed opposite to each other along the thickness direction of the filling layer. Along the direction from the third surface to the fourth surface, the area of ​​the filling layer in a cross-section perpendicular to the thickness direction of the filling layer gradually decreases.

[0025] In the step of “providing a filling layer, placing the filling layer inside the hollow portion, and fixing the filling layer relative to the intermediate layer”, the first surface is flush with the third surface, the second surface is flush with the fourth surface, and the outer peripheral surface of the filling layer is parallel to and in contact with the inner wall surface of the hollow portion.

[0026] In one possible implementation, the step "providing a first glass plate and a second glass plate, and sequentially stacking the first glass plate, the first laminated structure, and the second glass plate to obtain the laminated glass" includes:

[0027] Provide a first glass plate and place the first glass plate on the worktable;

[0028] With the first surface and the third surface facing upwards, the first stacked structure is disposed on the surface of the first glass plate;

[0029] A second glass plate is provided, and the second glass plate is stacked on the surface of the first stacked structure opposite to the first glass plate to obtain the second stacked structure;

[0030] The second laminated structure is pressed together to obtain the laminated glass.

[0031] Secondly, this application provides a laminated glass. The laminated glass includes a shielding area and a signal transmission area, wherein the visible light transmittance of the shielding area is less than 70%, and the visible light transmittance of the signal transmission area is greater than 70%. The laminated glass includes a first glass plate, a second glass plate, an intermediate layer, a filler layer, a heating wire, and a pre-fixing structure. The intermediate layer has a cutout portion that penetrates the intermediate layer along the thickness direction of the laminated glass and is located in the signal transmission area. The filler layer fills the cutout portion and is fixedly connected to the cutout portion through the pre-fixing structure. The heating wire is embedded in the filler layer and the intermediate layer. The first glass plate and the second glass plate are respectively disposed on opposite sides of the intermediate layer and the filler layer, and are stacked with and fixedly connected to the intermediate layer and the filler layer.

[0032] In one possible implementation, the pre-fixed structure is an adhesive element bonded between the filler layer and the intermediate layer.

[0033] In one possible implementation, the adhesive is bonded between the outer peripheral surface of the filling layer and the inner wall surface of the hollow portion.

[0034] In one possible implementation, the adhesive is bonded to the surface of the filler layer and the surface of the intermediate layer, and is disposed around the edge of the filler layer.

[0035] In one possible implementation, the pre-fixing structure includes a filler layer pre-fusion structure and an intermediate layer pre-fusion structure. The filler layer pre-fusion structure is disposed at the edge of the filler layer, and the intermediate layer pre-fusion structure is disposed around the edge of the cutout portion, and the filler layer pre-fusion structure and the intermediate layer pre-fusion structure are fused together.

[0036] In one possible implementation, the pre-fixed structure is the inner wall surface of the hollow portion. Along the direction from the second glass plate to the first glass plate, the inner wall surface of the hollow portion is inclined towards the center of the hollow portion. Along the direction perpendicular to the thickness of the filling layer, the cross-sectional area of ​​the filling layer gradually decreases. The filling layer is disposed within the hollow portion, and the outer peripheral surface of the filling layer is parallel to and in contact with the inner wall surface of the hollow portion.

[0037] Thirdly, this application provides a vehicle including a vehicle body and the aforementioned laminated glass, wherein the laminated glass is installed at an opening in the vehicle body, and the second glass panel faces the inside of the vehicle body.

[0038] In summary, the laminated glass manufacturing method provided in this application, during the process of filling the filler layer into the hollow section, can prevent the filler layer from shifting or detaching from the intermediate layer by fixing the filler layer relative to the intermediate layer. This ensures that the surface of the filler layer remains flush with the surface of the intermediate layer, thereby preventing the heating wire from being exposed in the filler layer and avoiding the phenomenon of floating wire, thus improving the quality of the laminated glass. At the same time, it can also avoid affecting the optical performance of the signal transmission area of ​​the laminated glass, avoid optical distortion in the signal transmission area, and improve the clarity of the image captured by the camera in the signal transmission area. Attached Figure Description

[0039] Figure 1 This is a structural diagram of the vehicle provided in this application;

[0040] Figure 2 yes Figure 1 The diagram shows the structure of the laminated glass in the vehicle, which serves as the vehicle's windshield.

[0041] Figure 3 yes Figure 1 The diagram shows the structure of the laminated glass in the vehicle, which serves as the rear windshield.

[0042] Figure 4 yes Figure 3 The diagram shows a partial cross-sectional structure of the laminated glass along the AA direction in the first embodiment.

[0043] Figure 5 yes Figure 4 The diagram shows the exploded structure of the laminated glass.

[0044] Figure 6 yes Figure 3 The diagram shows a partial cross-sectional structure of the laminated glass along the AA direction in the second embodiment.

[0045] Figure 7 yes Figure 3 The diagram shows a partial cross-sectional structure of the laminated glass along the AA direction in the third embodiment.

[0046] Figure 8 yes Figure 7 A partial structural diagram of the laminated glass shown at another angle;

[0047] Figure 9 yes Figure 3 The diagram shows a partial cross-sectional structure of the laminated glass along the AA direction in the fourth embodiment.

[0048] Figure 10 yes Figure 3 The diagram shows a partial cross-sectional structure of the laminated glass along the AA direction in the fifth embodiment.

[0049] Figure 11 yes Figure 3 The diagram shows a partial cross-sectional structure of the laminated glass along the AA direction in the sixth embodiment.

[0050] Figure 12 This is a flowchart of the method for manufacturing laminated glass provided in this application;

[0051] Figure 13 yes Figure 12 The diagram shows a structural schematic of step S1 in the first embodiment of the method for manufacturing laminated glass.

[0052] Figure 14 yes Figure 12 The method for manufacturing laminated glass shown is a schematic diagram of step S1 in the first embodiment from another angle.

[0053] Figure 15 yes Figure 13 The diagram shows a partial structural schematic of step S2 in the first embodiment of the method for manufacturing laminated glass.

[0054] Figure 16 yes Figure 12 The diagram shows a structural schematic of step S3 in the first embodiment of the method for manufacturing laminated glass.

[0055] Figure 17 yes Figure 12 The diagram shows the structure of steps S4 and S5 in the first embodiment of the method for manufacturing laminated glass.

[0056] Figure 18 yes Figure 12 The diagram shows a structural schematic of step S2 in the second embodiment of the laminated glass manufacturing method.

[0057] Figure 19 yes Figure 12 The diagram shows a structural schematic of step S2 in the third embodiment of the laminated glass manufacturing method.

[0058] Figure 20 yes Figure 12 The diagram shows a structural schematic of step S1 in the fourth embodiment of the laminated glass manufacturing method.

[0059] Figure 21 yes Figure 12 The diagram shows a structural schematic of step S2 in the fourth embodiment of the laminated glass manufacturing method.

[0060] Reference numerals: Vehicle 1000; Vehicle body 200; Front windshield 300; Rear windshield 400; Front windshield portion 310; Sunroof portion 320; Field of view area 103; Obstruction area 101; Top obstruction area 1011; Signal transmission area 102; Laminated glass 100; First glass plate 10; First outer surface 11; First inner surface 12; Second glass plate 20; Second outer surface 21; Second inner surface 22; Intermediate layer 30; First surface 31; Second surface 32; Hollowed-out portion 33; Inner wall surface 331; Filling layer 40; Third surface 41; Fourth surface 42; Outer peripheral surface 43; Heating wire 50; Adhesive 60; First sub-adhesive 61; Second sub-adhesive 62; Melting point 1. Detailed Implementation

[0061] The technical solutions 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. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0062] In this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, "multiple" in this application refers to two or more.

[0063] This application provides a means of transportation. Means of transportation include, but are not limited to, vehicles, airplanes, trains, subways, and light rail. The following description uses "vehicle" as the term for a means of transportation.

[0064] Please see Figure 1 , Figure 1 This is a structural schematic diagram of the vehicle 1000 provided in this application.

[0065] This application provides a vehicle 1000 in its embodiments. In this embodiment, the vehicle 1000 is a sedan. In other embodiments, the vehicle 1000 may also be a multi-purpose vehicle (MPV), a sport / suburban utility vehicle (SUV), an off-road vehicle (ORV), a pickup truck, a van, a bus, a truck, etc.

[0066] Vehicle 1000 includes a body 200, laminated glass 100, and a camera (not shown). The laminated glass 100 is installed at an opening in the body 200, dividing the vehicle 1000 into its exterior and interior. The camera is installed inside the vehicle 1000. The camera can capture images of the external road environment through the laminated glass 100, providing the driver with a wider field of vision and offering some degree of driving assistance.

[0067] The laminated glass 100 can be used as the windshield 300, rear windshield 400, side window glass, or corner window glass of the vehicle 1000.

[0068] Please see Figure 2 , Figure 2 yes Figure 1 The laminated glass 100 in the vehicle 1000 shown is a structural schematic diagram of the windshield 300 of the vehicle 1000.

[0069] The windshield 300 includes a windshield portion 310 and a panoramic sunroof portion 320. When the windshield 300 is mounted on the vehicle body 200, the windshield portion 310 is located in front of the driver's field of vision, and the panoramic sunroof portion 320 is located on the roof of the vehicle. The windshield portion 310 includes a field of vision area 103, a shielding area 101, and a signal transmission area 102. The shielding area 101 is disposed around the outer periphery of the field of vision area 103. The signal transmission area 102 is located above the field of vision area 103 and is located within the inner periphery of the top shielding area 1011. That is, the top shielding area 1011 is disposed around the signal transmission area 102. The top shielding area 1011 is the boundary strip between the panoramic sunroof portion 320 and the windshield portion 310.

[0070] The visible light transmittance of the field of view 103 is greater than or equal to 70%, which facilitates the observation of the external environment by occupants through the light-transmitting area. The visible light transmittance of the shielding area 101 is less than or equal to 5%, which helps to provide shielding, protection, and enhance the overall aesthetics. The visible light transmittance of the signal transmission area 102 is greater than 70%, which improves the clarity of the images captured by the camera and provides a clear window for the rearview mirror field of view and driver assistance functions.

[0071] Please see Figure 3 , Figure 3 yes Figure 1 The laminated glass 100 in the vehicle 1000 shown is a structural schematic diagram of the rear windshield 400 of the vehicle 1000.

[0072] For ease of description, in this application, the width direction of the laminated glass 100 is defined as the X direction, the height direction as the Y direction, and the thickness direction as the Z direction. The X, Y, and Z directions are all perpendicular to each other. It can be understood that the X direction is parallel or approximately parallel to the width direction of the vehicle 1000, the positive Y-axis points towards the roof, and the negative Y-axis points towards the underside.

[0073] In this embodiment, the laminated glass 100 has a shielding area 101 and a signal transmission area 102. The visible light transmittance of the shielding area 101 is less than 70%. Preferably, the visible light transmittance of the shielding area 101 is less than 18% to improve the privacy of the rear passengers in the vehicle 1000 and the overall aesthetics of the vehicle 1000. For example, the visible light transmittance of the shielding area 101 can be 15%, 8%, or 5%, etc. The visible light transmittance of the signal transmission area 102 is greater than 70% to improve the clarity of the images captured by the camera, providing a clear window for the rearview mirror view and driver assistance functions.

[0074] In this embodiment, the signal transmission area 102 is located at the bottom edge region of the laminated glass 100. The shielding area 101 surrounds the signal transmission area 102. In other embodiments, the signal transmission area 102 may also be located at the top edge region of the laminated glass 100, or near the side edge region. In this embodiment, the signal transmission area 102 is trapezoidal. In other embodiments, the signal transmission area 102 may also be rectangular, circular, elliptical, or other irregularly shaped. The "bottom edge region of the laminated glass 100" refers to the region near the negative Y-axis direction of the laminated glass 100.

[0075] It should be noted that when entertainment displays are installed in the rear seats of vehicle 1000, they may obstruct the driver's view through the rearview mirror. In this embodiment, laminated glass 100 is used as the rear windshield, and a signal transmission area 102 is provided in the laminated glass 100. This allows the camera inside vehicle 1000 to capture the view behind vehicle 1000 through the signal transmission area 102, thereby providing the driver with a view through the rearview mirror. This avoids the rear-seat displays from obstructing the rearview mirror view, improves driving safety, and also provides driver assistance.

[0076] Please see Figure 4 and Figure 5 , Figure 4 yes Figure 3 The diagram shows a partial cross-sectional view of the laminated glass 100 along the AA direction in the first embodiment. Figure 5 yes Figure 4 A schematic diagram of the exploded structure of the laminated glass 100 shown.

[0077] The laminated glass 100 includes a first glass plate 10, a second glass plate 20, an intermediate layer 30, a filler layer 40, and a heating wire 50. The first glass plate 10, the intermediate layer 30, and the second glass plate 20 are stacked sequentially along the thickness direction of the laminated glass 100. The intermediate layer 30 has a perforated portion 33 that penetrates the intermediate layer 30 along its thickness direction. The filler layer 40 is disposed within the intermediate layer 30 and is fixedly connected to it.

[0078] The first glass panel 10 includes a first outer surface 11 and a first inner surface 12. The first outer surface 11 and the first inner surface 12 are arranged opposite to each other along the thickness direction (Z direction) of the first glass panel 10. In this embodiment, the first glass panel 10 is an outer glass panel. When the laminated glass 100 is installed on the vehicle body 200, the first outer surface 11 faces the outside of the vehicle 1000, and the first inner surface 12 faces the intermediate layer 30.

[0079] The thickness of the first glass plate 10 is 0.7 mm to 4.0 mm. Preferably, the thickness of the first glass plate 10 is 2.0 mm to 2.5 mm. For example, the thickness of the first glass plate 10 is 2.1 mm. The first glass plate 10 can be white glass or colored glass, such as green glass. The total iron content (calculated as Fe2O3) of the transparent glass is less than or equal to 0.1%, even less than or equal to 0.05%, and further less than or equal to 0.01%. The visible light transmittance of the transparent glass is 80% to 95%. The total iron content (calculated as Fe2O3) of the colored glass is 0.1% to 0.8%, preferably 0.1% to 0.5%. In this embodiment, the visible light transmittance of the first glass plate 10 is greater than 70%. Preferably, the visible light transmittance of the first glass plate 10 is greater than 80%. For example, the first glass plate 10 is 2.1 mm thick green glass with a visible light transmittance of 80%. This improves the visible light transmittance of the signal transmission area 102.

[0080] The second glass plate 20 includes a second outer surface 21 and a second inner surface 22. The second outer surface 21 and the second inner surface 22 are disposed opposite to each other along the thickness direction of the second glass plate 20. The thickness of the second glass plate 20 is 0.7 mm to 4.0 mm. Preferably, the thickness of the second glass plate 20 is 2.0 mm to 2.5 mm. For example, the thickness of the second glass plate 20 is 2.1 mm. The second glass plate 20 can be white glass or colored glass, such as green glass. In this embodiment, the visible light transmittance of the second glass plate 20 is greater than 70%. Preferably, the visible light transmittance of the second glass plate 20 is greater than 80%. For example, the second glass plate 20 is 2.1 mm thick green glass with a visible light transmittance of 80%. This improves the visible light transmittance of the signal transmission area 102.

[0081] In this embodiment, the second glass plate 20 is the inner glass plate. When the laminated glass 100 is installed on the vehicle body 200, the second outer surface 21 faces the interior of the vehicle 1000, and the second inner surface 22 faces the intermediate layer 30.

[0082] Please continue reading. Figure 4 and Figure 5 The intermediate layer 30 is a colored thermoplastic polymer film. The thickness of the intermediate layer 30 is 0.38 mm to 2.28 mm. In this embodiment, the thickness of the intermediate layer 30 is 0.76 mm. In other embodiments, the thickness of the intermediate layer 30 may also be 0.38 mm, 1.14 mm, 1.52 mm, 1.9 mm, 2.28 mm, or other values ​​between 0.38 mm and 2.28 mm. The material of the thermoplastic polymer film may be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), and ionic polymer (SGP). The colored thermoplastic polymer film may be a gray thermoplastic polymer film, a green thermoplastic polymer film, or a blue thermoplastic polymer film.

[0083] The visible light transmittance of the intermediate layer 30 is less than 70%. Preferably, the visible light transmittance of the intermediate layer 30 is less than or equal to 18% to reduce the visible light transmittance of the shielding area 101 and ensure the privacy of the rear passengers of the vehicle 1000.

[0084] The intermediate layer 30 includes a first surface 31 and a second surface 32. The first surface 31 and the second surface 32 are arranged opposite to each other along the thickness direction of the intermediate layer 30, that is, opposite to each other along the Z direction. The intermediate layer 30 is provided with a cutout portion 33. The cutout portion 33 penetrates the intermediate layer 30 along the thickness direction of the intermediate layer 30. That is, the cutout portion 33 penetrates the first surface 31 and the second surface 32. In this embodiment, the cutout portion 33 is a trapezoidal through hole. Along the thickness direction perpendicular to the laminated glass 100, the cross-section of the cutout portion 33 is trapezoidal or approximately trapezoidal. Along the thickness direction parallel to the laminated glass 100, the cross-section of the cutout portion 33 is rectangular or approximately rectangular. The outline of the cutout portion 33 is consistent with or approximately the same as the outline of the signal transmission area 102. The cutout portion 33 is located in the signal transmission area 102. Furthermore, the outline of the cutout portion 33 is consistent with or approximately the same as the outline of the signal transmission area 102.

[0085] The filler layer 40 is a transparent thermoplastic polymer film. The material of the transparent thermoplastic polymer film can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), and ionic polymer (SGP). The visible light transmittance of the filler layer 40 is greater than 70%. For example, the visible light transmittance of the filler layer 40 can be, but is not limited to, 80%, 85%, 90%, or 95%. For example, the filler layer 40 is a transparent PVB film with a visible light transmittance of 90% to improve the visible light transmittance of the signal transmission region 102.

[0086] The thickness of the filler layer 40 is 0.38 mm to 2.28 mm. In this embodiment, the thickness of the filler layer 40 is the same as or approximately the same as the thickness of the first intermediate layer 30. That is, the thickness of the filler layer 40 is 0.76 mm. In other embodiments, the thickness of the filler layer 40 may also be 0.38 mm, 1.14 mm, 1.52 mm, 1.9 mm, 2.28 mm, or other values ​​between 0.38 mm and 2.28 mm.

[0087] The filling layer 40 includes a third surface 41, a fourth surface 42, and an outer peripheral surface 43. The third surface 41 and the fourth surface 42 are arranged opposite to each other along the thickness direction of the filling layer 40, that is, opposite to each other along the Z direction. The outer peripheral surface 43 surrounds the outer periphery of the filling layer 40 and connects between the third surface 41 and the fourth surface 42. The structure of the filling layer 40 matches the structure of the cutout portion 33. That is, the filling layer 40 can perfectly fill the cutout portion 33.

[0088] The laminated glass 100 also includes a pre-fixed structure. A filler layer 40 is disposed within the cutout portion 33 of the intermediate layer 30 and is fixedly connected to the intermediate layer 30. It is understood that the filler layer 40 is located in the signal transmission area 102. The outer peripheral surface 43 of the filler layer 40 is fixedly connected to the inner wall surface 331 of the cutout portion 33. In this embodiment, the first surface 31 is flush with the third surface 41, and the second surface 32 is flush with the fourth surface 42. In other embodiments, there may be a small step difference between the first surface 31 and the third surface 41, and also a small step difference between the second surface 32 and the fourth surface 42.

[0089] The intermediate layer 30 and the filler layer 40 are both sandwiched between the first glass plate 10 and the second glass plate 20. The first surface 31 and the third surface 41 face the second inner surface 22 of the second glass plate 20 and are bonded and fixed to it. The second surface 32 and the fourth surface 42 face the first inner surface 12 of the first glass plate 10 and are bonded and fixed to it.

[0090] In one embodiment, the pre-fixing structure is a liquid such as alcohol or water. During the fabrication of the laminated glass 100, the filling layer 40 and the intermediate layer 30 can be pre-fixed using the pre-fixing structure. Then, the filling layer 40 and the intermediate layer 30 are bonded and fixed using high-temperature lamination, and the first glass plate 10 and the second glass plate 20 are also bonded and fixed to the intermediate layer 30 and the filling layer 40. Specifically, under high-temperature conditions, both the intermediate layer 30 and the filling layer 40 melt. After the melted intermediate layer 30 and the filling layer 40 solidify, the inner wall surface 331 of the hollow portion 33 can be bonded and fixed to the outer peripheral surface 43 of the filling layer 40. It should be noted that during the high-temperature lamination process, the liquid such as alcohol or water will completely or partially evaporate. The pre-fixing structure is not shown in the figures in this embodiment.

[0091] In one embodiment, the pre-fixing structure includes a filler layer pre-melting structure and an intermediate layer pre-melting structure. The filler layer pre-melting structure is located at the edge of the filler layer 40, and the intermediate layer pre-melting structure is arranged around the edge of the hollow portion 33, and the filler layer pre-melting structure and the intermediate layer pre-melting structure are fused together. Specifically, during the manufacturing process of the laminated glass 100, a portion of the intermediate layer 30 and a portion of the filler layer 40 can be pre-melted at the boundary between the intermediate layer 30 and the filler layer 40. After the pre-melted intermediate layer 30 and the filler layer 40 solidify, they are fused together to form a pre-fixing structure, thereby achieving pre-fixation of the filler layer 40 and the intermediate layer 30. Then, the inner wall surface 331 of the hollow portion 33 is bonded and fixed to the outer peripheral surface 43 of the filler layer 40 by high-temperature lamination, and the first glass plate 10 and the second glass plate 20 are both bonded and fixed to the intermediate layer 30 and the filler layer 40. For example, during the pre-melting process, the edge regions of the first surface 31 and the third surface 41 surrounding the edge region of the hollow portion 33 can be pre-melted to achieve bonding and fixation between the edge regions of the first surface 31 and the third surface 41 surrounding the edge region of the hollow portion 33. Alternatively, the edge regions of the second surface 32 and the fourth surface 42 surrounding the edge region of the hollow portion 33 can be pre-melted to achieve bonding and fixation between the edge regions of the second surface 32 and the fourth surface 42 surrounding the edge region of the hollow portion 33. It should be noted that the pre-fixed structure is almost fused with the filler layer 40 and the intermediate layer 30 that are bonded and fixed after high-temperature lamination. The pre-fixed structure is not shown in the figures in this embodiment.

[0092] The laminated glass 100 provided in this embodiment improves the visible light transmittance of the laminated glass 100 in the signal transmission area 102 by providing a hollow portion 33 in the intermediate layer 30 and filling the hollow portion 33 with a filler layer 40 having a visible light transmittance greater than 70%. This improves the clarity of images captured by the camera. Furthermore, in this embodiment, by pre-fixing the filler layer 40 and the intermediate layer 30 with a pre-fixing structure before high-temperature lamination, the connection stability between the filler layer 40 and the intermediate layer 30 can be improved. This prevents the position of the filler layer 40 from shifting or detaching from the hollow portion 33 during lamination, thereby reducing the step difference between the filler layer 40 and the intermediate layer 30, that is, reducing the step difference between the first surface 31 and the third surface 41, and the step difference between the second surface 32 and the fourth surface 42, ensuring that the first surface 31 and the third surface 41 are flush, and the second surface 32 and the fourth surface 42 are flush.

[0093] like Figure 4 As shown, the heating wire 50 is embedded in the filler layer 40 and the intermediate layer 30. The heating wire 50 can be enameled wire, tungsten wire, silver wire, etc. In this embodiment, the heating wire 50 is disposed in the signal transmission area 102 of the laminated glass 100 and the surrounding shielding area 101. The heating wire 50 can heat the laminated glass 100 in the signal transmission area 102 to achieve defogging and defrosting functions, thereby improving the clarity of images captured by the camera.

[0094] In some embodiments, the heating wire 50 may also cover both the shielding area 101 and the signal transmission area 102. In this case, the heating wire 50 can heat not only the laminated glass 100 in the signal transmission area 102, but also the laminated glass 100 in the shielding area 101; that is, the heating wire 50 can heat the entire laminated glass 100. Thus, by providing the heating wire 50, this embodiment not only improves the clarity of images captured by the camera, but also enhances the clarity of the view seen by the driver and passengers from the shielding area 101 of the laminated glass 100.

[0095] It should be noted that during the manufacturing process of laminated glass, if the filler layer is not fixed to the interlayer, its position within the cutout is prone to shifting. This means the filler layer can easily move relative to the interlayer, causing its surface to be uneven with the interlayer's surface. Consequently, the heating wire can easily protrude from the filler layer, resulting in a "floating wire" phenomenon. Furthermore, the filler layer is also prone to twisting and warping during laminated glass manufacturing. The heating wire will follow the twisting of the filler layer, leading to optical distortion in the signal transmission area and affecting the image clarity captured by the camera in that area.

[0096] In this embodiment, by pre-fixing the filler layer 40 and the intermediate layer 30 before high-temperature lamination, the position of the filler layer 40 can be prevented from shifting or detaching from the intermediate layer 30 during the lamination process. This ensures that the first surface 31 is flush with the third surface 41, and the second surface 32 is flush with the fourth surface 42. This prevents the heating wire 50 located in the filler layer 40 from being exposed, thus avoiding the phenomenon of floating wire and improving the quality of the laminated glass 100. At the same time, it also prevents the heating wire 50 from twisting and deforming, thereby improving the optical performance of the signal transmission area 102 and improving the clarity of the image captured by the camera in the signal transmission area 102.

[0097] It is understood that the laminated glass 100 provided in this embodiment can achieve defogging and defrosting functions on the signal transmission area 102 while ensuring sufficient visible light transmittance, and at the same time avoid the appearance of floating lines and optical distortion in the signal transmission area 102, thereby improving the clarity of images captured by the camera in the signal transmission area 102. Please refer to... Figure 6 , Figure 6 yes Figure 3 The laminated glass 100 shown is a partial cross-sectional view along the AA direction in the second embodiment.

[0098] This embodiment and Figure 4 The difference in the illustrated embodiment is that, in this embodiment, the laminated glass 100 further includes an adhesive member 60. The adhesive member 60 is bonded between the filler layer 40 and the intermediate layer 30. Specifically, the adhesive member 60 is disposed around the outer periphery of the filler layer 40 and bonded between the outer peripheral surface 43 of the filler layer 40 and the inner wall surface 331 of the perforated portion 33. The adhesive member 60 is an adhesive. For example, the adhesive member 60 is PVB adhesive.

[0099] It is understood that the adhesive 60 in this embodiment is a pre-fixed structure. In the actual manufacturing process of the laminated glass 100, the adhesive 60 can be first bonded to the outer peripheral surface 43 of the filling layer 40, and then the filling layer 40 with the adhesive 60 can be filled into the hollow part 33, and the adhesive 60 can be bonded and fixed to the inner wall surface 331 of the hollow part 33 to achieve pre-fixation of the filling layer 40 and the intermediate layer 30; then, the second glass plate 20 and the first glass plate 10 can be bonded and fixed to the opposite sides of the intermediate layer 30 by high-temperature lamination.

[0100] In this embodiment, by providing an adhesive 60 between the filler layer 40 and the intermediate layer 30, the connection stability between the filler layer 40 and the intermediate layer 30 can be improved. This can prevent the filler layer 40 from shifting or detaching from the intermediate layer 30 during the lamination process, ensuring that the first surface 31 is flush with the third surface 41 and the second surface 32 is flush with the fourth surface 42. This can prevent the heating wire 50 located in the filler layer 40 from being exposed, thus avoiding the problem of floating wire. This can improve the quality of the laminated glass 100. At the same time, it can also avoid affecting the optical performance of the signal transmission area 102, preventing optical distortion in the signal transmission area 102, and improving the clarity of the image captured by the camera.

[0101] Please see Figure 7 and Figure 8 , Figure 7 yes Figure 3 The diagram shows a partial cross-sectional view of the laminated glass 100 along the AA direction in the third embodiment. Figure 8 yes Figure 7 The diagram shows a partial structural view of the laminated glass 100 from another angle. It should be noted that... Figure 8 The dashed line in the figure represents the boundary line of fill layer 40.

[0102] This embodiment and Figure 6 The difference in the illustrated embodiment is that, in this embodiment, the adhesive 60 is disposed around the edge of the third surface 41 and is bonded between the third surface 41 and the first surface 31. That is, the adhesive 60 is bonded at the boundary between the filler layer 40 and the intermediate layer 30.

[0103] The adhesive component 60 can be polyethylene terephthalate (PET) tape or other transparent tape. The adhesive component 60 has an adhesive backing. In actual manufacturing, the adhesive-backed side of the adhesive component 60 can be directly bonded to the third surface 41 and the first surface 31 to fix the filler layer 40 to the intermediate layer 30. Alternatively, after bonding the adhesive component 60 to the third surface 41 and the first surface 31, a soldering iron or hot air can be used to melt the adhesive component 60. After the melted adhesive component 60 solidifies, it has a stronger bond with the third surface 41 and the first surface 31, thereby improving the connection stability between the filler layer 40 and the intermediate layer 30.

[0104] In this embodiment, by providing an adhesive 60 between the filler layer 40 and the intermediate layer 30, and bonding the adhesive 60 between the third surface 41 and the first surface 31, the connection stability between the filler layer 40 and the intermediate layer 30 can be improved. This can prevent the position of the filler layer 40 from shifting or detaching from the intermediate layer 30 during the lamination process, ensuring that the first surface 31 is flush with the third surface 41 and the second surface 32 is flush with the fourth surface 42. This can prevent the heating wire 50 located in the filler layer 40 from being exposed, thus avoiding the problem of floating wire. This can improve the quality of the laminated glass 100. At the same time, it can also avoid affecting the optical performance of the signal transmission area 102, preventing optical distortion in the signal transmission area 102, and improving the clarity of the image captured by the camera.

[0105] Please see Figure 9 , Figure 9 yes Figure 3 The schematic diagram shows a partial cross-sectional structure of the laminated glass 100 along the AA direction in the fourth embodiment.

[0106] This embodiment and Figure 7 The difference in the illustrated embodiment is that, in this embodiment, the adhesive 60 is disposed around the edge of the fourth surface 42 and is bonded between the fourth surface 42 and the second surface 32. In this embodiment, by bonding the adhesive 60 between the fourth surface 42 and the second surface 32, the connection stability between the filler layer 40 and the intermediate layer 30 can be improved. This can prevent the position of the filler layer 40 from shifting or detaching from the intermediate layer 30 during the lamination process, thereby preventing the heating wire 50 located on the filler layer 40 from being exposed. This also avoids the problem of loose wires, improves the quality of the laminated glass 100, and at the same time, avoids affecting the optical performance of the signal transmission area 102, prevents optical distortion in the signal transmission area 102, and improves the clarity of the images captured by the camera.

[0107] Please see Figure 10 , Figure 10 yes Figure 3 The schematic diagram shows a partial cross-sectional structure of the laminated glass 100 along the AA direction in the fifth embodiment.

[0108] This embodiment and Figure 7 The difference in the illustrated embodiment is that, in this embodiment, the adhesive 60 includes a first sub-adhesive 61 and a second sub-adhesive 62. The first sub-adhesive 61 is disposed around the edge of the third surface 41 and is bonded between the third surface 41 and the first surface 31. The second sub-adhesive 62 is disposed around the edge of the fourth surface 42 and is bonded between the fourth surface 42 and the second surface 32.

[0109] In this embodiment, by setting a first sub-adhesive 61 and a second sub-adhesive 62, and adhering the first sub-adhesive 61 between the third surface 41 and the first surface 31, and adhering the second sub-adhesive 62 between the fourth surface 42 and the second surface 32, the connection stability between the filling layer 40 and the intermediate layer 30 can be further improved. This can further prevent the position of the filling layer 40 from shifting or detaching from the intermediate layer 30 during the lamination process, thereby preventing the heating wire 50 located in the filling layer 40 from being exposed, thus avoiding the problem of floating wire and improving the quality of the laminated glass 100. At the same time, it can also avoid affecting the optical performance of the signal transmission area 102, preventing optical distortion in the signal transmission area 102, and improving the clarity of the image captured by the camera.

[0110] Please see Figure 11 , Figure 11 yes Figure 3 The schematic diagram shows a partial cross-sectional structure of the laminated glass 100 along the AA direction in the sixth embodiment.

[0111] This embodiment and Figure 4 The difference in the illustrated embodiment is that, in this embodiment, along the direction from the first surface 31 to the second surface 32, the area of ​​the cross-section of the cutout portion 33, perpendicular to the thickness direction of the laminated glass 100, gradually decreases. For example, along the thickness direction parallel to the laminated glass 100, the cross-section of the cutout portion 33 is trapezoidal.

[0112] The inner wall surface 331 of the hollow portion 33 is inclined. Along the direction from the first surface 31 to the second surface 32, the inner wall surface 331 of the hollow portion 33 is inclined towards the center of the hollow portion 33. The angle between the inner wall surface 331 of the hollow portion 33 and the first surface 31 is greater than 0 degrees and less than 90 degrees. The structure of the filling layer 40 matches the structure of the hollow portion 33. Along the direction from the third surface 41 to the fourth surface 42, the area of ​​the cross-section of the filling layer 40 perpendicular to the thickness direction of the laminated glass 100 gradually decreases. For example, along the thickness direction parallel to the laminated glass 100, the cross-section of the filling layer 40 is trapezoidal. The outer peripheral surface 43 of the filling layer 40 is inclined. Along the direction from the third surface 41 to the fourth surface 42, the outer peripheral surface 43 is inclined towards the inner side of the filling layer 40. The angle between the outer peripheral surface 43 and the third surface 41 is greater than 0 degrees and less than 90 degrees.

[0113] The filling layer 40 fills the hollow portion 33 and is fixedly connected to the intermediate layer 30. The outer peripheral surface 43 of the filling layer 40 is parallel to and in contact with the inner wall surface 331 of the hollow portion 33. The first surface 31 is flush with or approximately flush with the third surface 41, and the second surface 32 is flush with or approximately flush with the fourth surface 42.

[0114] In the actual manufacturing process of laminated glass 100, the filling layer 40 can be placed in the hollow part 33 first, then the first surface 31 and the third surface 41 are facing upwards, and the intermediate layer 30 filled with the filling layer 40 is placed on the surface of the first glass plate 10. Then, the second glass plate 20 is placed on the surface of the intermediate layer 30 and the filling layer 40 facing away from the first glass plate 10. Then, high-temperature lamination is performed to bond and fix the filling layer 40 to the intermediate layer 30, and to bond and fix the first glass plate 10 and the second glass plate 20 to the intermediate layer 30 and the filling layer 40.

[0115] It is understood that in this embodiment, the inner wall surface 331 of the hollow portion 33 is the pre-fixed structure. When the filling layer 40 is disposed in the hollow portion 33 and the first surface 31 and the third surface 41 face upward, the inner wall surface 331 of the hollow portion 33 has a supporting effect on the filling layer 40, thereby achieving the pre-fixation of the filling layer 40 and the intermediate layer 30.

[0116] The laminated glass 100 provided in this embodiment, by setting the inner wall surface 331 of the hollow portion 33 as an inclined surface, enables the hollow portion 33 to support the filling layer 40, thereby preventing the filling layer 40 from shifting or detaching from the intermediate layer 30 within the hollow portion 33. This prevents the heating wire 50 located in the filling layer 40 from being exposed, thus avoiding the problem of floating wire and improving the quality of the laminated glass 100. At the same time, it also avoids affecting the optical performance of the signal transmission area 102, preventing optical distortion in the signal transmission area 102 and improving the clarity of the image captured by the camera.

[0117] Please see Figure 12 , Figure 12 This is a flowchart of the manufacturing method of the laminated glass 100 provided in this application.

[0118] The manufacturing method of laminated glass 100 includes:

[0119] S1: Provide a base adhesive layer, and provide a hollow part 33 in the base adhesive layer. The hollow part 33 penetrates the base adhesive layer along the thickness direction to form an intermediate layer 30.

[0120] S2: Provide a filling layer 40, place the filling layer 40 inside the hollow portion 33, and fix the filling layer 40 relative to the intermediate layer 30; wherein, the visible light transmittance of the filling layer 40 is greater than the visible light transmittance of the intermediate layer 30;

[0121] S3: Provide a heating wire 50 and embed the heating wire 50 into the filler layer 40 and the intermediate layer 30 to obtain a first laminated structure;

[0122] S4: Provide a first glass plate 10 and a second glass plate 20, and stack the first glass plate 10, the first laminated structure and the second glass plate 20 in sequence to obtain the second laminated structure.

[0123] S5: Press the second laminated structure together to obtain laminated glass 100.

[0124] The method for manufacturing the laminated glass 100 provided in this application, during the process of filling the filler layer 40 into the cutout portion 33, by fixing the filler layer 40 relative to the intermediate layer 30, can prevent the position of the filler layer 40 in the cutout portion 33 from shifting or detaching from the intermediate layer 30, thereby ensuring that the surface of the filler layer 40 remains flush with the surface of the intermediate layer 30. This can prevent the heating wire 50 from being exposed in the filler layer 40, thus avoiding the problem of floating wire and improving the quality of the laminated glass 100. At the same time, it can also avoid affecting the optical performance of the signal transmission area 102, preventing optical distortion in the signal transmission area 102 and improving the clarity of the image captured by the camera.

[0125] Please combine Figure 13 and Figure 14 , Figure 13 yes Figure 12 The diagram shown is a structural schematic of step S1 in the first embodiment of the method for manufacturing laminated glass 100. Figure 14 yes Figure 12 The diagram shows a structural schematic of step S1 in the first embodiment of the method for manufacturing laminated glass 100, viewed from another angle.

[0126] In step S1, the base adhesive layer is colored PVB. The visible light transmittance of the base adhesive layer is less than 70%. For example, the visible light transmittance of the base adhesive layer is less than or equal to 15%. In this embodiment, the cutout portion 33 is located at the bottom edge region of the base adhesive layer and is spaced apart from the periphery of the base adhesive layer. The cutout portion 33 is a trapezoidal through hole. Along the thickness direction perpendicular to the base adhesive layer, the cross-section of the cutout portion 33 is trapezoidal or approximately trapezoidal. Along the thickness direction parallel to the base adhesive layer, the cross-section of the cutout portion 33 is rectangular or approximately rectangular.

[0127] The intermediate layer 30 obtained in step S1 includes a first surface 31 and a second surface 32. The first surface 31 and the second surface 32 are arranged opposite to each other along the thickness direction of the intermediate layer 30. The cutout portion 33 penetrates through the first surface 31 and the second surface 32.

[0128] Please combine Figure 15 , Figure 15 yes Figure 13 The diagram shows a partial structural schematic of step S2 in the first embodiment of the method for manufacturing the laminated glass 100.

[0129] Step S2 specifically includes:

[0130] (1) Provide a filling layer 40 and place the filling layer 40 inside the hollow part 33;

[0131] (2) The edges of the filling layer 40 and the middle layer 30 surrounding the hollow part 33 are heated so that the edges of the filling layer 40 and the middle layer 30 surrounding the hollow part 33 are fused together.

[0132] In step (1), the filling layer 40 includes a third surface 41, a fourth surface 42, and an outer peripheral surface 43 (e.g., Figure 16 (As shown). The third surface 41 and the fourth surface 42 are arranged opposite to each other along the thickness direction of the filling layer 40, that is, opposite to each other along the Z direction. The outer peripheral surface 43 is arranged around the outer periphery of the filling layer 40 and connects between the third surface 41 and the fourth surface 42. The structure of the filling layer 40 matches the structure of the cutout portion 33. The thickness of the filling layer 40 is the same as or approximately the same as the thickness of the intermediate layer 30. In this embodiment, the material of the filling layer 40 is PVB. The visible light transmittance of the filling layer 40 is greater than 70%.

[0133] After the filling layer 40 is placed on the hollow part 33, the third surface 41 is flush with or approximately flush with the first surface 31, and the fourth surface 42 is flush with or approximately flush with the second surface 32.

[0134] In step (2), the edges of the filler layer 40 and the intermediate layer 30 surrounding the edge of the cutout portion 33 are heated and fused together to form a pre-fixed structure. The filler layer 40 and the intermediate layer 30 are pre-fixed through the pre-fixed structure. The pre-fixed structure includes a filler layer pre-melting structure and an intermediate layer pre-melting structure, which are fused together. The filler layer pre-melting structure is formed by heating and melting the edges of the filler layer 40, and the intermediate layer pre-melting structure is formed by heating and melting the intermediate layer 30 surrounding the edge of the cutout portion 33. Specifically, a laser or a soldering iron can be used to heat the edges of the filler layer 40 and the intermediate layer 30 surrounding the edge of the cutout portion 33 to melt and connect them. That is, in step (2), a laser or a soldering iron is used to melt the boundary between the filler layer 40 and the intermediate layer 30 to connect them.

[0135] Specifically, the melting point 1 is located at the edge of the third surface 41 and the edge of the first surface 31 surrounding the hollow portion 33. There can be multiple melting points 1. Multiple melting points 1 are spaced apart around the edge of the third surface 41. In this embodiment, the melting point 1 is strip-shaped. In other embodiments, the melting point 1 can also be circular, elliptical, or other shapes. Each melting point 1 spans the filler layer 40 and the intermediate layer 30. That is, heating the same melting point 1 can simultaneously melt the filler layer 40 and the intermediate layer 30. In step (2), a laser or soldering iron can be used to heat multiple melting points 1 respectively, so that the filler layer 40 and the intermediate layer 30 located at the melting point 1 melt, thereby fusion-connecting the filler layer 40 and the intermediate layer 30 at multiple melting points 1. This improves the connection stability between the filler layer 40 and the intermediate layer 30.

[0136] In one embodiment, the melting point 1 may also be configured as a ring around the edge of the third surface 41 and the edge of the first surface 31 surrounding the cutout portion 33. In this case, in step (2), a laser or soldering iron can be used to heat along the edge of the third surface 41 and the ring of the first surface 31 surrounding the cutout portion 33, so that the filling layer 40 is fused to the intermediate layer 30 around the edge of the third surface 41. This can further improve the connection stability between the filling layer 40 and the intermediate layer 30.

[0137] In one embodiment, the fusion site 1 may also be located at the edge of the fourth surface 42 and the edge of the second surface 32 surrounding the cutout 33. The filler layer 40 is fused to the intermediate layer 30 near the edge of the fourth surface 42.

[0138] In one embodiment, the partial melting point 1 is located at the edge of the third surface 41 and the edge of the first surface 31 surrounding the hollow portion 33, and the partial melting point 1 is located at the edge of the fourth surface 42 and the edge of the second surface 32 surrounding the hollow portion 33. The filler layer 40 is fused to the intermediate layer 30 at the edges near the third surface 41 and the edges near the fourth surface 42.

[0139] Please see Figure 16 , Figure 16 yes Figure 12 The diagram shows a structural schematic of step S3 in the first embodiment of the method for manufacturing the laminated glass 100.

[0140] The heating wire 50 can be enameled wire, tungsten wire, silver wire, etc. In step S3, the heating wire 50 can be heated first, and then the heated heating wire 50 can be embedded into the intermediate layer 30 and the filler layer 40 from the surface of the intermediate layer 30 and the filler layer 40. It can be understood that when the heated heating wire 50 comes into contact with the intermediate layer 30 and the filler layer 40, it will soften or melt the intermediate layer 30 and the filler layer 40 near the heating wire 50, thereby facilitating the embedding of the heating wire 50.

[0141] In this embodiment, the heating wire 50 is disposed in the filler layer 40 and the intermediate layer 30 near the filler layer 40. In some embodiments, the heating wire 50 may also cover the entire filler layer 40 and the intermediate layer 30.

[0142] In this embodiment, the heating wire 50 is embedded in the filler layer 40 from the third surface 41 and in the intermediate layer 30 from the first surface 31. In other embodiments, the heating wire 50 may also be embedded in the filler layer 40 through the fourth surface 42 and in the intermediate layer 30 through the second surface 32.

[0143] Please see Figure 17 , Figure 17 yes Figure 12 The diagram shows the structure of steps S4 and S5 in the first embodiment of the method for manufacturing laminated glass 100.

[0144] In step S4, the first glass plate 10 is first placed on the platform with the first inner surface 12 facing upward; then the first stacked structure is stacked on the first inner surface 12, that is, the intermediate layer 30 with the heating wire 50 embedded and the filling layer 40 is stacked on the first inner surface 12; next, the second glass plate 20 is stacked on the surface of the intermediate layer 30 and the filling layer 40 facing away from the first glass plate 10, wherein the second inner surface 22 of the second glass plate 20 faces the intermediate layer 30 and the filling layer 40.

[0145] In step S5, the second laminated structure is bonded at high temperature by heating and pressurizing, causing the intermediate layer 30 and the filler layer 40 to soften or even melt. After softening or melting, the intermediate layer 30 and the filler layer 40 are bonded to the first glass plate 10 and the second glass plate 20. Simultaneously, the outer peripheral surface 43 of the filler layer 40 is fused to the inner wall surface 331 of the hollow portion 33. When the temperature decreases, the intermediate layer 30 and the filler layer 40 solidify, thus achieving bonding and fixation with the first glass plate 10 and the second glass plate 20, thereby forming the laminated glass 100.

[0146] The laminated glass 100 includes a shielding area 101 and a signal transmission area 102. The area corresponding to the filling layer 40 is the signal transmission area 102, and the area corresponding to the intermediate layer 30 is the shielding area 101. In this embodiment, by using a material with higher visible light transmittance to make the filling layer 40, the visible light transmittance of the signal transmission area 102 can be improved, thereby enhancing the clarity of images captured by the camera. For example, the visible light transmittance of the signal transmission area 102 is greater than 70%, while the visible light transmittance of the shielding area 101 is less than 70%. Preferably, the visible light transmittance of the shielding area 101 is less than 18%, to improve the privacy of the rear seats of the vehicle 1000 and the overall aesthetics of the vehicle 1000.

[0147] It should be noted that in this embodiment, the molten site 1 formed in step S2 will fuse with or almost fuse with the molten intermediate layer 30 and filler layer 40 in step S5. Therefore, the molten site 1 formed in step S2 is almost invisible in the laminated glass 100 obtained in step S5. The method for manufacturing the laminated glass 100 provided in this embodiment can be used to manufacture products such as... Figure 4 The laminated glass 100 of the illustrated embodiment.

[0148] In this embodiment, during the process of filling the cutout portion 33 with the filler layer 40, the filler layer 40 and the intermediate layer 30 are pre-melted to fix them together. This prevents the filler layer 40 from shifting or detaching from the intermediate layer 30 in the cutout portion 33, thus ensuring that the first surface 31 and the third surface 41 remain flush, and the second surface 32 and the fourth surface 42 remain flush. This also prevents the heating wire 50 from being exposed in the filler layer 40, thus avoiding the problem of floating wire and improving the quality of the laminated glass 100. At the same time, it also avoids affecting the optical performance of the signal transmission area 102, preventing optical distortion in the signal transmission area 102 and improving the clarity of the image captured by the camera.

[0149] Please see Figure 18 , Figure 18 yes Figure 12 The diagram shows a structural schematic of step S2 in the second embodiment of the method for manufacturing laminated glass 100.

[0150] The difference between this embodiment and the first embodiment is that, in this embodiment, step S2 includes:

[0151] (a) A filler layer 40 and an adhesive 60 are provided, wherein the adhesive 60 is disposed on the outer peripheral surface 43 of the filler layer 40;

[0152] (b) The structure obtained in step (a) is placed inside the hollow part 33, and the adhesive 60 is bonded and fixed to the inner circumferential surface of the hollow part 33.

[0153] In this embodiment, the adhesive 60 is alcohol or water. In step (a), the adhesive 60 can be directly applied to the outer peripheral surface 43 of the filler layer 40. It can be understood that in this embodiment, the adhesive 60 is a pre-fixing structure. In step (b), the filler layer 40 is bonded and fixed to the inner peripheral surface of the hollow portion 33 through the pre-fixing structure, thereby achieving pre-fixation. Specifically, in step (b), the adhesive 60 is fixedly connected to the filler layer 40 and the intermediate layer 30 through surface tension and van der Waals force, thereby fixing the filler layer 40 and the intermediate layer 30. After the filler layer 40 fills the hollow portion 33, the first surface 31 is flush with or approximately flush with the third surface 41, and the second surface 32 is flush with or approximately flush with the fourth surface 42.

[0154] In this embodiment, by providing an adhesive 60 on the outer peripheral surface 43 of the filling layer 40 and connecting the inner wall surface 331 of the hollow portion 33 of the adhesive 60, the connection stability between the filling layer 40 and the intermediate layer 30 can be improved. This can prevent the position of the filling layer 40 within the hollow portion 33 from shifting, ensuring that the first surface 31 and the third surface 41 remain flush, and the second surface 32 and the fourth surface 42 remain flush. This avoids step differences between the first surface 31 and the third surface 41, and between the second surface 32 and the fourth surface 42. Consequently, it can prevent the heating wire 50 from being exposed in the filling layer 40, thus avoiding the problem of floating wire and improving the quality of the laminated glass 100. At the same time, it can also avoid affecting the optical performance of the signal transmission area 102, preventing optical distortion in the signal transmission area 102, and improving the clarity of the images captured by the camera.

[0155] In this embodiment, alcohol or water is used as the adhesive 60. During steps S3 to S5, the adhesive 60 gradually evaporates, and in the laminated glass 100 obtained in step S5, the adhesive 60 completely or almost completely evaporates. At this time, during the high-temperature lamination process in step S5, after the intermediate layer 30 and the filler layer 40 soften or melt, the outer peripheral surface 43 of the filler layer 40 will bond to the inner wall surface 331 of the hollowed-out portion 33. When the temperature decreases and the intermediate layer 30 and the filler layer 40 solidify, the outer peripheral surface 43 of the filler layer 40 is bonded and fixed to the inner wall surface 331 of the hollowed-out portion 33, thereby achieving a fixed connection between the filler layer 40 and the intermediate layer 30. In this way, the adhesive 60 remaining in the laminated glass 100 can be avoided from affecting the optical performance of the signal transmission area 102, thereby avoiding any impact on the camera's shooting effect.

[0156] It should be noted that the method for manufacturing the laminated glass 100 provided in this embodiment can be used to manufacture the laminated glass 100 provided in the first embodiment of this application, that is, it can be used to manufacture... Figure 4 and Figure 5 The laminated glass 100 of the illustrated embodiment.

[0157] In one embodiment, the adhesive 60 is glue. For example, the adhesive 60 is PVB glue. In step (a), the adhesive 60 can be applied to the outer peripheral surface 43 of the filling layer 40 by dispensing. At this time, the laminated glass 100 obtained in step S5 also includes the adhesive 60, which surrounds the outer periphery of the filling layer 40 and is bonded between the outer peripheral surface 43 of the filling layer 40 and the inner wall surface 331 of the hollow portion 33. This embodiment uses PVB glue as the adhesive 60, which can improve the bonding stability between the filling layer 40 and the intermediate layer 30. The method for manufacturing the laminated glass 100 provided in this embodiment can be used to manufacture the laminated glass 100 provided in the second embodiment of this application, that is, for manufacturing... Figure 6 The laminated glass 100 of the illustrated embodiment.

[0158] Please see Figure 19 , Figure 19 yes Figure 12 The diagram shows a structural schematic of step S2 in the third embodiment of the method for manufacturing laminated glass 100.

[0159] The difference between this embodiment and the first embodiment is that, in this embodiment, step S2 includes:

[0160] (i) Provide a filling layer 40 and place the filling layer 40 inside the hollow part 33;

[0161] (ii) Provide an adhesive 60 for bonding the adhesive 60 to the surface of the filler layer 40 and the surface of the intermediate layer 30, and for surrounding the edge of the filler layer 40;

[0162] (iii) The adhesive 60 is heated so that the adhesive 60 is fused together with the filler layer 40 and the intermediate layer 30.

[0163] In this embodiment, the adhesive 60 is PET tape. PET tape has an adhesive backing. In other embodiments, the adhesive 60 may also be a transparent tape of other materials. In step (ii), the adhesive side of the adhesive 60 faces the third surface 41 and the first surface 31, and is adhered to the edge of the third surface 41 and the edge of the first surface 31 surrounding the cutout 33. It can be understood that, along the width direction of the adhesive 60, part of the adhesive 60 is adhered and fixed to the third surface 41, and part of the adhesive 60 is adhered and fixed to the first surface 31.

[0164] In step (iii), a soldering iron or hot air can be used to melt or partially melt the PET tape, so that the PET tape is fused to the third surface 41 and the first surface 31. This improves the bonding stability between the adhesive 60 and the filler layer 40 and the intermediate layer 30, that is, it improves the connection stability between the filler layer 40 and the intermediate layer 30. Furthermore, in this embodiment, using PET tape as the adhesive 60 allows for melting of the adhesive 60 at a lower temperature in step (iii), thereby reducing the requirements for the manufacturing process of the laminated glass 100, saving resources and costs.

[0165] In this embodiment, by providing adhesive 60 on the surfaces of the filling layer 40 and the intermediate layer 30, a fixed connection between the filling layer 40 and the intermediate layer 30 can be achieved. This can prevent the position of the filling layer 40 within the cutout portion 33 from shifting, ensuring that the first surface 31 and the third surface 41 remain flush, and the second surface 32 and the fourth surface 42 remain flush. This can prevent the heating wire 50 from being exposed in the filling layer 40, thus avoiding the problem of floating wire and improving the quality of the laminated glass 100. At the same time, it can also avoid affecting the optical performance of the signal transmission area 102, preventing optical distortion in the signal transmission area 102 and improving the clarity of the images captured by the camera.

[0166] It should be noted that the method for manufacturing the laminated glass 100 provided in this embodiment can be used to manufacture the laminated glass 100 provided in the third embodiment of this application, that is, it can be used to manufacture... Figure 7 The laminated glass 100 of the illustrated embodiment.

[0167] In one embodiment, the adhesive 60 can also be adhered to the edge of the fourth surface 42 and the edge of the second surface 32 surrounding the hollow portion 33. Along the width direction of the adhesive 60, part of the adhesive 60 is adhered and fixed to the fourth surface 42, and part of the adhesive 60 is adhered and fixed to the second surface 32. In this case, the method for manufacturing the laminated glass 100 provided in this embodiment can be used to manufacture the laminated glass 100 provided in the fourth embodiment of this application, that is, for manufacturing... Figure 8 The laminated glass 100 of the illustrated embodiment.

[0168] In one embodiment, there are two adhesive members 60. One adhesive member 60 is bonded to the edge of the third surface 41 and the edge of the first surface 31 surrounding the hollow portion 33, and the other adhesive member 60 is bonded to the edge of the fourth surface 42 and the edge of the second surface 32 surrounding the hollow portion 33. In this case, the method for manufacturing the laminated glass 100 provided in this embodiment can be used to manufacture the laminated glass 100 provided in the fifth embodiment of this application, that is, for manufacturing... Figure 9 The laminated glass 100 of the illustrated embodiment.

[0169] Please see Figure 20 and Figure 21 , Figure 20 yes Figure 12 The diagram shows a structural schematic of step S1 in the fourth embodiment of the method for manufacturing laminated glass 100. Figure 21 yes Figure 12 The diagram shows a structural schematic of step S2 in the fourth embodiment of the method for manufacturing laminated glass 100.

[0170] The difference between this embodiment and the first embodiment is that, in this embodiment, along the direction from the first surface 31 to the second surface 32, the area of ​​the cross-section of the hollow portion 33, perpendicular to the thickness direction of the laminated glass 100, gradually decreases. For example, along the thickness direction parallel to the base adhesive layer, the cross-section of the hollow portion 33 is trapezoidal.

[0171] Specifically, the inner wall surface 331 of the hollow portion 33 is an inclined surface. Along the direction from the first surface 31 to the second surface 32, the inner wall surface 331 of the hollow portion 33 is inclined towards the center of the hollow portion 33. The angle between the inner wall surface 331 of the hollow portion 33 and the first surface 31 is greater than 0 degrees and less than 90 degrees. It can be understood that in this embodiment, the inner wall surface 331 of the hollow portion 33 forms a pre-fixed structure.

[0172] In step S2, the structure of the filling layer 40 matches the structure of the cutout portion 33. Along the direction from the third surface 41 to the fourth surface 42, the area of ​​the cross-section of the filling layer 40 perpendicular to the thickness direction of the laminated glass 100 gradually decreases. For example, along the thickness direction parallel to the filling layer 40, the cross-section of the filling layer 40 is trapezoidal. Specifically, the outer peripheral surface 43 of the filling layer 40 is inclined. Along the direction from the third surface 41 to the fourth surface 42, the outer peripheral surface 43 slopes towards the inside of the filling layer 40.

[0173] When the filling layer 40 fills the hollow portion 33, it is fixed relative to the intermediate layer by a pre-fixing structure. Specifically, when the filling layer 40 fills the hollow portion 33, its outer peripheral surface 43 contacts and connects with the inner wall surface 331 of the hollow portion 33. When the first surface 31 and the third surface 41 face upwards, the inner wall surface 331 of the hollow portion 33 provides support for the filling layer 40, thereby achieving pre-fixation of the filling layer 40. In steps S3, S4, and S5, by ensuring that the first surface 31 and the third surface 41 face upwards, the position of the filling layer 40 within the hollow portion 33 can be prevented from shifting or detaching from the intermediate layer 30.

[0174] The method for manufacturing the laminated glass 100 provided in this embodiment sets the inner wall surface 331 of the hollow portion 33 as an inclined surface, so that the inner wall surface 331 of the hollow portion 33 can support the filling layer 40. This can prevent the filling layer 40 from shifting or detaching from the intermediate layer 30 within the hollow portion 33, thereby preventing the heating wire 50 located in the filling layer 40 from being exposed. This also avoids the problem of floating wire, improves the quality of the laminated glass 100, and at the same time, avoids affecting the optical performance of the signal transmission area 102 of the laminated glass 100, prevents optical distortion in the signal transmission area 102, and improves the clarity of the image captured by the camera.

[0175] It should be noted that the method for manufacturing the laminated glass 100 provided in this embodiment can be used to manufacture the laminated glass 100 provided in the sixth embodiment of this application, that is, it can be used to manufacture... Figure 11 The laminated glass 100 of the illustrated embodiment.

[0176] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A method for manufacturing laminated glass, characterized in that, include: A base adhesive layer is provided, and a hollow portion is provided in the base adhesive layer. The hollow portion penetrates the base adhesive layer along the thickness direction to form an intermediate layer. A filling layer is provided, which is disposed within the cutout portion and fixed relative to the intermediate layer; wherein the visible light transmittance of the filling layer is greater than that of the intermediate layer; A heating wire is provided and embedded within the filler layer and the intermediate layer to obtain a first laminated structure; A first glass plate and a second glass plate are provided, and the first glass plate, the first laminated structure and the second glass plate are stacked in sequence to obtain the laminated glass.

2. The method for manufacturing laminated glass according to claim 1, characterized in that, The step "providing a fill layer, placing the fill layer within the cutout portion, and fixing the fill layer relative to the intermediate layer" includes: A filler layer and an adhesive are provided, wherein the adhesive is disposed on the outer peripheral surface of the filler layer; The filling layer with the adhesive is placed inside the hollow part, and the adhesive is bonded and fixed to the inner circumferential surface of the hollow part.

3. The method for manufacturing laminated glass according to claim 2, characterized in that, The adhesive comprises one or more of alcohol, water, and glue.

4. The method for manufacturing laminated glass according to claim 1, characterized in that, The step "providing a fill layer, placing the fill layer within the cutout portion, and fixing the fill layer relative to the intermediate layer" includes: A filling layer is provided, and the filling layer is disposed within the hollow portion; An adhesive is provided to be bonded to the surface of the filler layer and the surface of the intermediate layer, and is disposed around the edge of the filler layer.

5. The method for manufacturing laminated glass according to claim 4, characterized in that, Step "providing a fill layer, placing the fill layer within the cutout portion, and fixing the fill layer relative to the intermediate layer" further includes: The adhesive is heated to fuse it with the filler layer and the intermediate layer.

6. The method for manufacturing laminated glass according to claim 1, characterized in that, The step "providing a fill layer, placing the fill layer within the cutout portion, and fixing the fill layer relative to the intermediate layer" includes: A filling layer is provided, and the filling layer is disposed within the hollow portion; The edges of the filling layer and the intermediate layer surrounding the cutout are heated to fuse them together.

7. The method for manufacturing laminated glass according to claim 6, characterized in that, The edges of the filling layer and the intermediate layer surrounding the edges of the hollow portion have multiple melting points, and the multiple melting points are spaced apart around the edges of the filling layer; The step "heating the edges of the filling layer and the intermediate layer surrounding the edges of the cutout" includes heating the filling layer and the intermediate layer at multiple melting points respectively.

8. The method for manufacturing laminated glass according to claim 7, characterized in that, The melting points are located on the surface of the filler layer facing the second glass plate and the surface of the intermediate layer facing the second glass plate.

9. The method for manufacturing laminated glass according to claim 8, characterized in that, Some of the melting points are located on the surface of the filler layer facing the second glass plate and the surface of the intermediate layer facing the second glass plate; some of the melting points are located on the surface of the filler layer facing the first glass plate and the surface of the intermediate layer facing the first glass plate.

10. The method for manufacturing laminated glass according to any one of claims 6 to 9, characterized in that, The step "heating the edges of the filling layer and the edges of the intermediate layer surrounding the cutout" includes: using a laser or a soldering iron to heat the edges of the filling layer and the edges of the intermediate layer surrounding the cutout.

11. The method for manufacturing laminated glass according to claim 1, characterized in that, The intermediate layer includes a first surface and a second surface, which are disposed opposite to each other along the thickness direction of the intermediate layer; along the direction from the first surface to the second surface, the area of ​​the cutout portion gradually decreases along the cross-section perpendicular to the thickness direction of the intermediate layer; The filling layer includes a third surface and a fourth surface, which are disposed opposite to each other along the thickness direction of the filling layer. Along the direction from the third surface to the fourth surface, the area of ​​the cross section of the filling layer perpendicular to the thickness direction of the filling layer gradually decreases. In the step "provide a filling layer, place the filling layer in the hollow part, and fix the filling layer relative to the intermediate layer", the first surface is flush with the third surface, the second surface is flush with the fourth surface, and the outer peripheral surface of the filling layer is parallel to and in contact with the inner wall surface of the hollow part.

12. The method for manufacturing laminated glass according to claim 11, characterized in that, The step "providing a first glass plate and a second glass plate, and sequentially stacking the first glass plate, the first laminated structure, and the second glass plate to obtain the laminated glass" includes: Provide a first glass plate and place the first glass plate on the worktable; With the first surface and the third surface facing upwards, the first stacked structure is disposed on the surface of the first glass plate; A second glass plate is provided, and the second glass plate is stacked on the surface of the first stacked structure opposite to the first glass plate to obtain the second stacked structure; The second laminated structure is pressed together to obtain the laminated glass.

13. A laminated glass, characterized in that, The laminated glass includes a shielding area and a signal transmission area, wherein the visible light transmittance of the shielding area is less than 70%, and the visible light transmittance of the signal transmission area is greater than 70%. The laminated glass includes a first glass plate, a second glass plate, an intermediate layer, a filler layer, a heating wire, and a pre-fixing structure; the intermediate layer has a hollow portion that penetrates the intermediate layer along the thickness direction of the laminated glass and is located in the signal transmission area; the filler layer fills the hollow portion and is fixedly connected to the intermediate layer through the pre-fixing structure; the heating wire is embedded in the filler layer and the intermediate layer. The first glass plate and the second glass plate are respectively disposed on opposite sides of the intermediate layer and the filling layer, and are stacked with the intermediate layer and the filling layer, and are fixedly connected to the intermediate layer and the filling layer.

14. The laminated glass according to claim 13, characterized in that, The pre-fixed structure is an adhesive component, which is bonded between the filler layer and the intermediate layer.

15. The laminated glass according to claim 14, characterized in that, The adhesive is bonded between the outer peripheral surface of the filling layer and the inner wall surface of the hollowed-out portion.

16. The laminated glass according to claim 14, characterized in that, The adhesive is bonded to the surface of the filler layer and the surface of the intermediate layer, and is disposed around the edge of the filler layer.

17. The laminated glass according to claim 13, characterized in that, The pre-fixed structure includes a filler layer pre-fusion structure and an intermediate layer pre-fusion structure. The filler layer pre-fusion structure is disposed at the edge of the filler layer, and the intermediate layer pre-fusion structure is disposed around the edge of the hollow part. The filler layer pre-fusion structure and the intermediate layer pre-fusion structure are fused together.

18. The laminated glass according to claim 13, characterized in that, The pre-fixed structure is the inner wall surface of the hollow part; along the direction from the second glass plate to the first glass plate, the inner wall surface of the hollow part is inclined toward the center of the hollow part; along the direction perpendicular to the thickness of the filling layer, the cross-sectional area of ​​the filling layer gradually decreases; The filling layer is disposed within the hollow portion, and the outer peripheral surface of the filling layer is parallel to and in contact with the inner wall surface of the hollow portion.

19. A vehicle, characterized in that, The vehicle includes a vehicle body and the laminated glass according to any one of claims 13 to 18, the laminated glass being installed at an opening in the vehicle body, the second glass panel facing the inside of the vehicle body.

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