Methods for manufacturing laminated glass

Abstract

This application relates to a method for manufacturing laminated glass, comprising the following steps: providing a first glass plate, a second glass plate, an adhesive sheet, and a connector; forming at least one first venting channel on the adhesive sheet at a position corresponding to the connector, the first venting channel extending to the side of the adhesive sheet, the extension length L1 of the first venting channel being greater than the width W1 of the lateral extension of the connector; and / or, forming at least one second venting channel on the lateral extension of the connector, the second venting channel extending to two opposite sides of the lateral extension; and stacking the first glass plate, the second glass plate, the adhesive sheet, and the connector together, so that the adhesive material of the adhesive sheet flows to and fills the first venting channel and / or the second venting channel. During the lamination process, gas near the connector can be smoothly discharged through the first venting channel and / or the second venting channel, which can reduce whitening or bubble generation during the lamination process and improve the product qualification rate.

Description

Technical Field

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

[0002] Laminated glass is a composite glass product made of two or more sheets of glass with one or more layers of organic polymer interlayer sandwiched between them. After undergoing special high-temperature pre-pressing (or vacuuming) and high-temperature, high-pressure processes, the glass and interlayer are permanently bonded together. PVB is a commonly used interlayer for automotive laminated glass. To achieve defrosting and defogging functions, silver paste heating wires are printed between adjacent glass sheets or wires are installed, along with thin-film connectors welded to the silver paste or wires. These thin-film connectors are typically welded to the second or third surface, sandwiched between the inner and outer glass sheets and the PVB.

[0003] In related technologies, thin-film joints come in various shapes, especially Z-shaped joints with a lateral span. Due to their long lateral length, when they are laminated with inner and outer glass sheets, pressure whitening and air bubbles may occur, resulting in a low product qualification rate. It is also possible that the air bubbles will expand and become visible after entering the market. In addition, some air bubbles are small and difficult to detect or are covered by black edges after lamination. Over time, the air bubbles will continue to grow and eventually become snowflake-shaped air bubbles. Summary of the Invention

[0004] Therefore, it is necessary to overcome the shortcomings of existing technologies and provide a method for manufacturing laminated glass that can reduce whitening or bubble formation during the lamination process and improve the product qualification rate.

[0005] A method for manufacturing laminated glass, the method comprising the following steps:

[0006] A first glass plate, a second glass plate, an adhesive sheet, and a connector are provided; wherein, at least one first venting channel is formed on the adhesive sheet at a position corresponding to the connector, the first venting channel extends to a side of the adhesive sheet near the connector, and the extension length L1 of the first venting channel is greater than the width W1 of the lateral extension of the connector; and / or, at least one second venting channel is formed on the lateral extension of the connector, the second venting channel extending to two opposite sides of the lateral extension;

[0007] The first glass plate, the second glass plate, the adhesive sheet, and the joint are stacked together, so that the adhesive material of the adhesive sheet flows to and fills the first exhaust channel and / or the second exhaust channel.

[0008] In one embodiment, there are multiple first exhaust channels, each of which is arranged at intervals along the extension direction of the side; and / or, there are multiple second exhaust channels, each of which is arranged at intervals along the extension direction of the lateral extension.

[0009] In one embodiment, the first venting channel includes a notch extending through two opposite surfaces of the adhesive sheet, and / or a groove disposed on one surface of the adhesive sheet.

[0010] In one embodiment, the method for manufacturing the laminated glass further includes the step of:

[0011] The notch is formed on the adhesive sheet using a cutting tool; and / or the groove is formed on one surface of the adhesive sheet by rolling using a roller with protrusions.

[0012] In one embodiment, the lateral extension is provided with a plurality of reciprocating first bends, the first bends forming a second exhaust channel.

[0013] In one embodiment, the cross-sectional profile of the first bend along its extension direction is trigonometric curve, semicircle, or semiellipse.

[0014] In one embodiment, the distance between the crests and troughs of the lateral extension along the direction perpendicular to the joint surface is set to h1, h1≤0.3mm; and / or, the wavelength of the lateral extension is set to λ1, λ1≥1.0mm.

[0015] In one embodiment, the lateral extension is provided with a plurality of second bends spaced apart and protruding toward one side, the second bends forming the second exhaust channel; and / or, a plurality of adhesive members are provided on one surface of the lateral extension, two adjacent adhesive members cooperating with the lateral extension to form the second exhaust channel.

[0016] In one embodiment, the adhesive is a double-sided adhesive or a prepreg.

[0017] In one embodiment, the distance between the crest of the second bend and the surface of the lateral extension is set to h2, h2≤0.3mm, the wavelength of the second bend is set to λ2, λ2≥1.0mm; and / or, the thickness of the adhesive is set to h3, h3≤0.3mm, and the spacing between two adjacent adhesives is set to λ3, λ3≥1.0mm.

[0018] In one embodiment, before the step of stacking the first glass plate, the second glass plate, the adhesive sheet and the joint together, the method further includes an alignment step, wherein the lateral extension portion obtains a first projection on the adhesive sheet along a direction perpendicular to the surface of the adhesive sheet, the distance between the side of the first projection away from the side and the side is L2, and the distance L2 is less than or equal to the extension length L1 of the first exhaust channel.

[0019] In one embodiment, the step of stacking the first glass plate, the second glass plate, the adhesive sheet, and the joint together is further included before the step of:

[0020] Copper foil and heating wire are provided;

[0021] The copper foil, the heating wire, and the connector are arranged on the adhesive sheet;

[0022] The copper foil is welded to the connector.

[0023] The step of stacking and combining the first glass plate, the second glass plate, the adhesive sheet, and the joint specifically includes: stacking and combining the first glass plate, the second glass plate, the adhesive sheet, the joint, the copper foil, and the heating wire together.

[0024] In one embodiment, the step of stacking the first glass plate, the second glass plate, the adhesive sheet, the connector, the copper foil, and the heating wire together includes:

[0025] In the alignment step, the copper foil is projected onto the adhesive sheet in a direction perpendicular to the surface of the adhesive sheet. The distance between the side of the second projection away from the side edge and the side edge is L3. The distance L3 is less than or equal to the extension length L1 of the first exhaust channel.

[0026] In one embodiment, printed heating lines are provided on the surface of the first glass plate facing the second glass plate or on the surface of the second glass plate facing the first glass plate;

[0027] The step prior to the step of stacking and assembling the first glass plate, the second glass plate, the adhesive sheet, and the joint together includes the following step:

[0028] The connector is soldered to the printed heating wire.

[0029] In the aforementioned method for manufacturing laminated glass, when at least one first venting channel is formed on the adhesive sheet at the position corresponding to the joint, and the first venting channel extends to the side of the adhesive sheet near the joint, with the extension length L1 of the first venting channel being greater than the width W1 of the lateral extension of the joint, gas near the joint can be smoothly discharged outward through the first venting channel during the lamination process. This reduces whitening or bubble formation during the lamination process, improving the product yield. Furthermore, during the lamination process, the adhesive material of the adhesive sheet overflows under pressure and fills the first venting channel, preventing gas from entering the interior of the clamped glass and causing bubbles. When at least one second venting channel is formed on the lateral extension of the joint, and the second venting channel extends to opposite sides of the lateral extension, gas near the joint can be smoothly discharged outward through the second venting channel during the lamination process. This reduces whitening or bubble formation during the lamination process, improving the product yield. Furthermore, during the lamination process, the adhesive material of the adhesive sheet overflows under pressure and fills the second venting channel, preventing gas from entering the interior of the clamped glass and causing bubbles. Attached Figure Description

[0030] Figure 1 This is a perspective view of a first glass plate, a second glass plate, an adhesive sheet, and a joint stacked together according to an embodiment of this application.

[0031] Figure 2 for Figure 1 The diagram shows a cross-sectional view of an embodiment of the structure at BB.

[0032] Figure 3 for Figure 1 A cross-sectional view of an embodiment of the adhesive sheet with the shown structure at CC.

[0033] Figure 4 for Figure 1 A cross-sectional view of another embodiment of the adhesive sheet with the structure shown at CC.

[0034] Figure 5 for Figure 1 A cross-sectional view of another embodiment of the adhesive sheet with the structure shown at CC.

[0035] Figure 6 for Figure 1 The diagram shows a cross-sectional view of another embodiment of the structure at BB.

[0036] Figure 7 for Figure 1 A cross-sectional view of an embodiment of the lateral extension in the structure shown.

[0037] Figure 8 for Figure 1 A cross-sectional view of another embodiment of the lateral extension in the structure shown.

[0038] Figure 9 for Figure 1 A cross-sectional view of another embodiment of the lateral extension in the structure shown.

[0039] Figure 10 for Figure 1 The diagram shows a cross-sectional view of another embodiment of the structure at BB.

[0040] 10. First glass plate; 11. First surface; 12. Second surface; 20. Second glass plate; 21. Third surface; 22. Fourth surface; 30. Adhesive sheet; 31. First exhaust channel; 32. Side; 40. Joint; 41. Lateral extension; 411. Second exhaust channel; 412. First bend; 413. Second bend; 414. Adhesive component; 42. Lead-out part; 50. Busbar; 51. Copper foil; 511. First copper foil; 512. Second copper foil; 52. Printing heating wire; 60. Exhaust channel; 70. Heating wire; 80. Shielding layer. Detailed Implementation

[0041] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0042] As described in the background section, the related technologies, particularly those involving Z-shaped joints with lateral spans, are prone to whitening or bubble formation during lamination. The inventors have discovered that this problem arises because the thin-film joint still possesses a certain thickness, such as 0.2mm, which raises the gap between the PVB and the glass, effectively creating a wall that blocks the venting channel. Furthermore, the spacing A between the joint and the busbar copper foil is too small, less than 3mm, resulting in a narrow Z-shaped venting channel. Consequently, bubbles near the thin-film joint cannot escape promptly during lamination, leading to whitening or bubble formation during the lamination process.

[0043] For the reasons mentioned above, this application provides a method for manufacturing laminated glass that can reduce whitening or bubble formation during the lamination process and improve the product qualification rate.

[0044] See Figure 1 and Figure 2 , Figure 1 This is a perspective structural diagram showing a first glass plate 10, a second glass plate 20, an adhesive sheet 30, and a joint 40 stacked together according to an embodiment of this application. Figure 2 It shows Figure 1 The diagram shows a cross-sectional view of an embodiment of the structure at BB. An embodiment of this application provides a method for manufacturing laminated glass, the method comprising the following steps:

[0045] Step S100: Provide a first glass plate 10, a second glass plate 20, an adhesive sheet 30, and a connector 40;

[0046] It should be noted that the connector 40 in this embodiment can be either a single connector 40 or a double connector 40. The difference between a single connector 40 and a double connector 40 lies in the structure of the lead-out portion 42. A single connector 40 has one lead-out portion 42, which connects to two spaced-apart busbars 50 respectively; that is, both busbars 50 are connected to the positive or negative terminal through the same lead-out portion 42. A double connector 40 has two lead-out portions 42, which are respectively connected to two spaced-apart busbars 50; that is, each of the two busbars 50 is connected to the positive or negative terminal through a lead-out portion 42. The busbars 50 can be, for example,... Figure 2 or Figure 6 The copper foil 51 shown can also be as follows: Figure 10 The silver paste shown is illustrated in the attached image. This embodiment specifically uses the attached image... Figure 1 The connector 40 shown is an example of a double connector 40. In this double connector 40, two leads 42 are spaced apart. One of the leads 42 is connected to one of the busbars 50 via a lateral extension 41. The lateral direction of the lateral extension 41 is as follows: Figure 1 As shown by the double arrow S, another lead-out portion 42 is directly connected to another busbar 50. One lead-out portion 42, the other lead-out portion 42, and the connected busbar 50 form an exhaust channel 60. This exhaust channel 60 is Z-shaped, and the gas flow direction of the exhaust channel 60 is shown by the dashed arrow. When the length L of the lateral extension portion 41 is larger, the distance A between the lateral extension portion 41 and the busbar 50 is too small, less than 3mm, which is not conducive to the outward discharge of gas during the lamination process, resulting in whitening or bubble defects.

[0047] Based on this, in this embodiment, at least one first exhaust channel 31 is formed on the adhesive sheet 30 at the position corresponding to the joint 40. The first exhaust channel 31 extends to the side 32 of the adhesive sheet 30 near the joint 40. The extension length L1 of the first exhaust channel 31 is greater than the width W1 of the lateral extension portion 41 of the joint 40.

[0048] Of course, this embodiment may not be limited to the first exhaust channel 31 described above. For some optional solutions, please refer to [link / reference]. Figures 6 to 9For example, at least one second exhaust passage 411 is formed on the lateral extension 41 of the connector 40, and the second exhaust passage 411 extends to the two opposite sides 32 of the lateral extension 41 respectively.

[0049] Step S200: The first glass plate 10, the second glass plate 20, the adhesive sheet 30 and the connector 40 are stacked together, so that the adhesive material of the adhesive sheet 30 flows to and fills the first exhaust channel 31 and / or the second exhaust channel 411.

[0050] For the above-mentioned method of manufacturing laminated glass, please refer to [link / reference needed]. Figures 1 to 5 When at least one first venting channel 31 is formed on the adhesive sheet 30 at a position corresponding to the joint 40, and the first venting channel 31 extends to the side 32 of the adhesive sheet 30 near the joint 40, the extension length L1 of the first venting channel 31 is greater than the width W1 of the lateral extension 41 of the joint 40, so that during the lamination process, the gas near the joint 40 can be smoothly discharged outward through the first venting channel 31, which can reduce whitening or bubble generation during the lamination process and improve the product qualification rate; in addition, during the lamination process, the adhesive material of the adhesive sheet 30 overflows under pressure and fills the first venting channel 31, which can prevent gas from entering the interior of the clamped glass and causing bubbles.

[0051] Please see Figures 6 to 9 When at least one second exhaust channel 411 is formed on the lateral extension 41 of the connector 40, and the second exhaust channels 411 extend to opposite sides of the lateral extension 41, during the lamination process, gas near the connector 40 can be smoothly discharged outward through the second exhaust channels 411, which can reduce whitening or bubble formation during the lamination process and improve the product qualification rate. In addition, during the lamination process, the adhesive material of the adhesive sheet 30 overflows under pressure and fills the second exhaust channel 411, which can prevent gas from entering the interior of the clamped glass and causing bubbles.

[0052] In one embodiment, there are multiple first exhaust channels 31, each arranged at intervals along the extension direction of the side 32; and / or, there are multiple second exhaust channels 411, each arranged at intervals along the extension direction of the lateral extension 41. The more first exhaust channels 31 and / or second exhaust channels 411 there are, the smoother the exhaust effect during the pressing process, preventing whitening or bubble formation during initial and high pressure, resulting in a significant improvement.

[0053] It should be noted that the extension direction of side 32 is also as follows: Figure 1 As shown in Figure S. Furthermore, the lateral extension 41 is specifically located on the side of the laminated glass, and the extension direction of the lateral extension 41 is parallel to the extension direction of the side 32, that is, as shown in Figure S. Figure 1 As shown in the middle S.

[0054] In one specific embodiment, the first exhaust channels 31 are arranged at equal intervals along the extension direction of the side 32, ensuring that the exhaust effect at each position along the extension direction of the side 32 is comparable, which is beneficial to improving the quality of the finished product. Of course, the first exhaust channels 31 can also be arranged at unequal intervals; the specific arrangement can be flexibly adjusted and set according to actual needs, and is not limited here. Similarly, the second exhaust channels 411 are arranged at equal intervals along the extension direction of the transverse extension 41, ensuring that the exhaust effect at each position along the extension direction of the transverse extension 41 is comparable, which is beneficial to improving the quality of the finished product. Of course, the second exhaust channels 411 can also be arranged at unequal intervals; the specific arrangement can be flexibly adjusted and set according to actual needs, and is not limited here.

[0055] Please see Figures 2 to 5 In some embodiments, the first venting channel 31 on the adhesive sheet 30 has various specific configurations, which can be flexibly adjusted and configured according to actual needs, as long as the wall thickness is less than that of other parts of the adhesive sheet 30 so that gas can be smoothly discharged during the pressing process. For an example, please refer to... Figure 3 The first venting channel 31 includes a notch penetrating two opposite surfaces of the adhesive sheet 30. This notch is, but is not limited to, formed by cutting with a cutting tool, which includes, but is not limited to, a cutting tool, a laser instrument, etc. As another example, please refer to... Figure 4 and Figure 5 The first exhaust channel 31 includes a groove on one surface of the adhesive sheet 30. This groove can be formed quickly by rolling on one surface of the adhesive sheet 30 using a roller with protrusions, by cutting with a cutting tool, or by other processing methods. Furthermore, the cross-sectional profile of the groove along its extension direction can be a regular shape such as a V-shape, semi-circle, semi-ellipse, or square, or other irregular shapes. As another example, when multiple first exhaust channels 31 are provided, at least one first exhaust channel 31 is a notch, and at least another first exhaust channel 31 is a groove; the specific arrangement can be flexibly adjusted and combined according to actual needs.

[0056] Please see Figure 6 and Figure 7 In one embodiment, the lateral extension 41 is provided with a plurality of reciprocating first bends 412. The first bends 412 form second venting channels 411. In this way, the venting effect during the pressing process is smoother, so that whitening or bubble generation will not occur during the initial pressing and high pressing, which is a very significant improvement.

[0057] The cross-sectional profile of the first bending portion 412 along its extension direction includes, but is not limited to, an arc shape, such as a trigonometric function curve, a semicircle, a semi-ellipse, or a polygonal shape, such as a square wave or a triangle. It can also be various regular and irregular shapes combining arc and polygonal shapes, which can be flexibly adjusted and set according to actual needs. In this embodiment, the cross-sectional profile of the first bending portion 412 is specifically set to an arc shape, which facilitates flattening during the lamination process, resulting in a smooth surface of the laminated glass product after lamination and improving the product qualification rate.

[0058] In one embodiment, the cross-sectional profile of the first bent portion 412 along its extension direction is a trigonometric function curve, a semi-circle, or a semi-ellipse. This makes the shape of the lateral extension 41 more regular, making it easier to flatten during the pressing process, thus improving product quality.

[0059] Please see Figure 6 and Figure 7 In one embodiment, the distance between the crests and troughs of the lateral extension 41 along the direction perpendicular to the surface of the connector 40 is set to h1, where h1 ≤ 0.3 mm; and / or, the wavelength of the lateral extension 41 is set to λ1, where λ1 ≥ 1.0 mm. Thus, research has shown that during the pressing process, on the one hand, the size of the second exhaust channel 411 is large enough to facilitate the smooth outward discharge of gas through the second exhaust channel 411, effectively preventing the formation of bubbles; on the other hand, h1 is not too large, so that the lateral extension 41 is easily flattened by the pressure of the glass plate; furthermore, the thickness of the adhesive sheet 30 is generally 0.76 mm, which can fill the second exhaust channel 411 and prevent bubble formation; additionally, if h1 is too large, it is not easy to flatten, leading to a decrease in product yield.

[0060] In some embodiments, the method of manufacturing laminated glass further includes the step of forming a plurality of reciprocatingly bent first bends 412 on the transverse extension 41 by means of mold molding.

[0061] It should be noted that the lateral extension 41 can take many forms, and is not limited to the reciprocating bending first bend 412 in the above embodiment. It can also be configured in the following ways:

[0062] Please see Figure 6 and Figure 8In another embodiment, the lateral extension 41 is provided with a plurality of second bends 413 spaced apart and protruding toward one side. The second bends 413 form a second venting channel 411. Similar to the first bend 412, the cross-sectional profile of the second bend 413 along its extension direction is, but is not limited to, an arc shape, such as a trigonometric function curve, a semicircle, a semi-ellipse, or a polygonal shape, such as a square wave or a triangle. It can also be various regular and irregular shapes combining arc and polygonal shapes, which can be flexibly adjusted and set according to actual needs. In this embodiment, the cross-sectional profile of the second bend 413 is specifically set to an arc shape, which is beneficial for being flattened during the lamination process, resulting in a flat surface of the laminated glass product after lamination and improving the product qualification rate.

[0063] Please see Figure 6 and Figure 9 In another embodiment, a plurality of adhesive members 414 are sequentially arranged on one surface of the lateral extension 41, and two adjacent adhesive members 414 cooperate with the lateral extension 41 to form a second exhaust channel 411. In this way, the lateral extension 41 does not need to be bent, and each adhesive member 414 can be directly bonded to one surface of the lateral extension 41, which simplifies the manufacturing process and improves process efficiency.

[0064] Please see Figure 6 and Figure 8 In another embodiment, the lateral extension 41 is provided with a plurality of second bends 413 that are spaced apart and protrude toward one side, and an adhesive member 414 located between two adjacent second bends 413. Thus, the positions of two adjacent adhesive members 414 are the second bends 413, and they combine to form a second venting channel 411, thereby reducing the crest height of the second bends 413, making it easier to flatten the lateral extension 41 during the pressing process.

[0065] In one embodiment, the adhesive 414 includes, but is not limited to, double-sided adhesive or prepreg. The adhesive sheet 30 and the prepreg are each independently provided and include, but are not limited to, polyvinyl butyral (PVB), polycarbonate (PC), sound-insulating PVB, light-shielding PVB, heat-controlling PVB, ethylene vinyl acetate (EVA), thermoplastic polyurethane (TPU), ionomers, thermoplastic materials, polybutylene terephthalate (PBT), polyethylene vinyl acetate (PET), polyethylene naphthalate (PEN), polyvinyl chloride (PVC), polyvinyl fluoride (PVf), polyacrylate (PA), polymethyl methacrylate (PMMA), polyurethane (PUR), and combinations thereof.

[0066] Please see Figure 8In one embodiment, the distance between the crest of the second bend 413 and the surface of the lateral extension 41 is set to h2, h2≤0.3mm, and the wavelength of the second bend 413 is set to λ2, λ2≥1.0mm.

[0067] Please see Figure 9 The thickness of the adhesive component 414 is set as h3, h3≤0.3mm, and the distance between two adjacent adhesive components 414 is set as λ3, λ3≥1.0mm.

[0068] Please refer to the following: Figure 1 and Figure 2 In one embodiment, before the step of stacking and assembling the first glass plate 10, the second glass plate 20, the adhesive sheet 30, and the connector 40 together, an alignment step is included. The lateral extension 41 projects onto the adhesive sheet 30 along a direction perpendicular to its surface. The distance L2 between the side of the first projection away from the side edge 32 and the side edge 32 is less than or equal to the extension length L1 of the first venting channel 31. Thus, the first venting channel 31 spans the lateral extension 41 of the connector 40, ensuring smooth venting during the lamination process, effectively improving defects such as whitening or bubble formation, and increasing the product yield.

[0069] Please refer to the following: Figure 1 and Figure 2 In one embodiment, the busbar 50 is specifically configured as, for example, copper foil 51, and the step of stacking and assembling the first glass plate 10, the second glass plate 20, the adhesive sheet 30, and the connector 40 together is further included:

[0070] Provide copper foil 51 and heating wire 70;

[0071] Copper foil 51, heating wire 70 and connector 40 are arranged on adhesive sheet 30;

[0072] Weld copper foil 51 to connector 40;

[0073] The specific steps of stacking and combining the first glass plate 10, the second glass plate 20, the adhesive sheet 30 and the connector 40 include: stacking and combining the first glass plate 10, the second glass plate 20, the adhesive sheet 30, the connector 40, the copper foil 51 and the heating wire 70 together.

[0074] Please refer to the following: Figure 1 and Figure 2 In one embodiment, prior to the step of stacking and combining the first glass plate 10, the second glass plate 20, the adhesive sheet 30, the connector 40, the copper foil 51, and the heating wire 70 together, the following is also included:

[0075] In the alignment step, the copper foil 51 is projected onto the adhesive sheet 30 along a direction perpendicular to the surface of the adhesive sheet 30. The distance L3 between the side of the second projection away from the side 32 and the side 32 is less than or equal to the extension length L1 of the first venting channel 31. Thus, the first venting channel 31 spans the copper foil 51, ensuring smooth venting during the lamination process, effectively improving defects such as whitening or bubble formation, and increasing the product yield.

[0076] Please see Figure 1 and Figure 2 or Figure 6 In one embodiment, the copper foil 51 includes a first copper foil 511 and a second copper foil 512 stacked vertically. The first copper foil 511 is embedded in the adhesive sheet 30 and located on one side of the connector 40, and is welded to the connector 40. The second copper foil 512 is located on the other side of the connector 40 and abuts against the lateral extension 41, such that the lateral extension 41 is clamped and fixed between the first copper foil 511 and the second copper foil 512. In addition, the heating wire 70 is also clamped and fixed between the first copper foil 511 and the second copper foil 512.

[0077] Please see Figure 1 and Figure 10 In one embodiment, the busbar 50 is configured as a printing heating line 52, which can be arranged on the surface of the first glass plate 10 facing the second glass plate 20, or on the surface of the second glass plate 20 facing the first glass plate 10.

[0078] Before the step of stacking and assembling the first glass plate 10, the second glass plate 20, the adhesive sheet 30 and the connector 40 together, the step of welding the connector 40 to the printed heating wire 52 is also included.

[0079] In one embodiment, the printing heating line 52 includes, but is not limited to, printing silver paste.

[0080] In one embodiment, the first glass panel 10 is, for example, an outer glass pane facing outwards from the vehicle, and the second glass panel 20 is correspondingly configured as an inner glass pane facing inwards from the vehicle. The first glass panel 10 has a first surface 11 and a second surface 12 arranged opposite to each other, and the second glass panel 20 has a third surface 21 and a fourth surface 22 arranged opposite to each other, with the second surface 12 and the third surface 21 facing each other. The connector 40 and the busbar 50 can be arranged between the second surface 12 and the adhesive sheet 30 and connected to the third surface 21 via the adhesive sheet 30, or they can be arranged between the third surface 21 and the adhesive sheet 30 and connected to the second surface 12 via the adhesive sheet 30.

[0081] In one embodiment, the laminated glass is further provided with a shielding layer 80, which is provided, for example, on the first surface 11, the second surface 12, or the third surface 21. The shielding layer 80, commonly known as the black edge, has an invisible light transmittance of less than or equal to 10%, serving a shielding function and improving both safety and aesthetics.

[0082] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0083] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0084] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method of making laminated glass, characterized by, The manufacturing method of the laminated glass comprises the following steps: The manufacturing method of the laminated glass comprises the following steps: The manufacturing method of the laminated glass comprises the following steps:

2. The method of manufacturing laminated glass according to claim 1, characterized by, The manufacturing method of the laminated glass comprises the following steps:

3. The method of manufacturing laminated glass according to claim 1, characterized by, The manufacturing method of the laminated glass comprises the following steps:

4. The method of manufacturing laminated glass according to claim 3, characterized by, The manufacturing method of the laminated glass comprises the following steps: The manufacturing method of the laminated glass comprises the following steps:

5. The method of claim 1, wherein The manufacturing method of the laminated glass comprises the following steps:

6. The method of manufacturing laminated glass according to claim 5, wherein The manufacturing method of the laminated glass comprises the following steps:

7. The method of manufacturing laminated glass according to claim 5, wherein The manufacturing method of the laminated glass comprises the following steps:

8. The method of claim 1, wherein The manufacturing method of the laminated glass comprises the following steps:

9. The method of producing laminated glass according to claim 8, characterized by, The manufacturing method of the laminated glass comprises the following steps:

10. 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The method of claim 1, wherein The step of laminating together the first glass sheet, the second glass sheet, the adhesive sheet and the joint further comprises a step of aligning, wherein the lateral extension obtains a first projection on the adhesive sheet in a direction perpendicular to a surface direction of the adhesive sheet, and a distance between the first projection and the side edge away from the side edge is L2, and the distance L2 is less than or equal to the extension length L1 of the first exhaust passage.

12. The method of claim 1, wherein Before the step of laminating together the first glass sheet, the second glass sheet, the adhesive sheet and the joint, further comprising steps of: providing a copper foil and a heating wire; arranging the copper foil, the heating wire and the joint on the adhesive sheet; welding the copper foil and the joint; The step of laminating together the first glass sheet, the second glass sheet, the adhesive sheet and the joint specifically comprises laminating together the first glass sheet, the second glass sheet, the adhesive sheet, the joint, the copper foil and the heating wire.

13. The method of manufacturing laminated glass according to claim 12, wherein Before the step of laminating together the first glass sheet, the second glass sheet, the adhesive sheet, the joint, the copper foil and the heating wire, further comprising steps of: a step of aligning, wherein the copper foil obtains a second projection on the adhesive sheet in a direction perpendicular to a surface direction of the adhesive sheet, and a distance between the second projection and the side edge away from the side edge is L3, and the distance L3 is less than or equal to the extension length L1 of the first exhaust passage.

14. The method of producing laminated glass according to any one of claims 1 to 11, characterized in that, The surface of the first glass sheet facing the second glass sheet or the surface of the second glass sheet facing the first glass sheet is provided with a printed heating wire; Before the step of laminating together the first glass sheet, the second glass sheet, the adhesive sheet and the joint, further comprising steps of: welding the joint and the printed heating wire.

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