Tooling for Laminating Double-Glass Modules and Method for Laminating Double-Glass Modules

Abstract

The present invention discloses a tooling for laminating double-glass modules and a method for laminating double-glass modules. The tooling is used to press at least one vertex angle of the double-glass module during lamination, and includes a top plate and side plates. The top plate is a right-angled triangular plate, and the bottom surface of the top plate is perpendicularly connected to the side plates. The side plates include a first side plate and a second side plate, and the first side plate and the second side plate are respectively provided with a first through hole and a second through hole. The sum of the masses of the top plate and the side plates is 3 kg - 5 kg. The tooling of the present invention can press the vertex angle of the double-glass module by the weight of the top plate, which can prevent excessive warping of the edge of the glass during heating in the laminator, thereby eliminating edge glue overflow after lamination. The first side plate and the second side plate of the present invention are respectively provided with a first through hole and a second through hole, which can be used to discharge air bubbles. During lamination, it does not affect the evacuation of the double-glass module, and the air bubbles in the adhesive film can still be normally discharged through the first through hole and the second through hole.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic modules, and more particularly, to a tooling for laminating double-glass modules and a method for laminating double-glass modules. Background Art

[0002] With the rapid development of the photovoltaic industry, driven by China becoming the world's largest production base for solar modules, domestic production capacity has grown rapidly. This has put forward higher and higher requirements for the reliability and weather resistance of photovoltaic modules. Double-glass modules have received increasing attention due to their high weather resistance. Therefore, unprecedented higher requirements are put forward for the types, quality, and appearance of current double-glass modules. In the manufacturing process of double-glass modules, the most critical link affecting the finished product quality is the lamination process. The lamination process can press high-temperature materials such as encapsulation adhesive film, solar cells, and photovoltaic glass into a rigid whole under high-temperature and vacuum conditions through a laminator. The specific lamination process is to place a glass laminate with a front glass, an upper encapsulation adhesive film, a battery cell, a lower encapsulation adhesive film, and a back glass in the laminator, evacuate the air in the module through vacuum pumping, and heat and laminate it to melt the EVA of the upper and lower encapsulation adhesive films, and encapsulate the double-glass module into a whole under atmospheric pressure.

[0003] However, in the prior art, there are problems of glass warping and edge glue overflow during the lamination process.

[0004] Therefore, there is an urgent need to provide a tooling and a lamination method that can reduce glass warping and edge glue overflow during lamination and do not affect the discharge of edge gas. Summary of the Invention

[0005] In view of this, the present invention provides a tooling for laminating double-glass modules, which is used to press at least one vertex angle of the double-glass module during lamination of the double-glass module. The tooling includes: a top plate and side plates, wherein: the top plate is a right-angled triangular plate, and the bottom surface of the top plate is perpendicularly connected to the side plates; the side plates include a first side plate and a second side plate, and the first side plate and the second side plate are respectively provided with a first through hole and a second through hole;

[0006] The sum of the masses of the top plate and the side plates is 3 kg - 5 kg.

[0007] Preferably, the perpendicular connection is an angular connection or a T-shaped connection.

[0008] Preferably, the first side plate and the second side plate are perpendicularly angularly connected, or the extension surface of the first side plate is perpendicularly intersected with the extension surface of the second side plate.

[0009] Preferably, the thickness of the top plate is 18 mm - 22 mm, and the thickness of the side plates is 10 mm - 20 mm.

[0010] Preferably, the distance between the bottom edges of the first through-hole and the second through-hole of the tooling and the bottom edges of the first side plate and the second side plate is 1.2 mm - 2.5 mm, and the width of the first through-hole and the second through-hole is 3 mm - 4 mm.

[0011] Preferably, the ratio of the area of the tooling to the area of the double-glass module is 19.8:10000 - 20:10000.

[0012] Preferably, the cross-section of the first through-hole and the second through-hole is any one of a rectangle, a keyway shape, and an ellipse.

[0013] Preferably, the number of the first through-hole and the second through-hole is 1. The first through-hole extends along a first direction, and the second through-hole extends along a second direction. The first direction is the extending direction of the first side plate, and the second direction intersects with the first direction.

[0014] The present invention also provides a method for laminating a double-glass module, including the steps of: taking a double-glass module to be laminated; placing the tooling at at least one vertex angle of the double-glass module to be laminated; and laminating the double-glass module to be laminated.

[0015] The inner walls of the first side plate and the second side plate of the preferred tooling are closely attached to the vertex angle of the double-glass module to be laminated, and there is a gap of 1 mm - 2 mm between the bottom surface of the top plate of the tooling and the upper surface of the double-glass module to be laminated.

[0016] Compared with the prior art, the tooling for laminating a double-glass module and the method for laminating a double-glass module provided by the present invention at least achieve the following beneficial effects:

[0017] The tooling for laminating a double-glass module of the present invention includes a top plate and side plates. The bottom surface of the top plate is vertically connected to the side edges. By using the weight of the top plate, the vertex angle of the double-glass module can be pressed, which can prevent excessive warping of the edge when the glass is heated in the laminator, thereby eliminating edge glue overflow after lamination.

[0018] The side plates of the tooling for laminating a double-glass module of the present invention include a first side plate and a second side plate. The first side plate and the second side plate are respectively provided with a first through-hole and a second through-hole. The first through-hole and the second through-hole can be used to discharge air bubbles. When laminating, it does not affect the vacuum pumping of the double-glass module, and the air bubbles in the glue film can still be normally discharged through the first through-hole and the second through-hole. The tooling for laminating a double-glass module of the present invention presses the vertex angle of the glass by the weight of its own top plate, so that the edge of the glass can still have slight warping after heating, and the air bubbles in the middle area can be discharged as the glue film liquefies, thus not affecting the air bubble discharge efficiency, and therefore there is no need to change the lamination process.

[0019] The tooling for laminating double-glass modules of the present invention is simpler to operate and more time-saving compared with the process of using adhesive tapes in the prior art. It can improve the laminating rhythm and the production speed of the production line.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all the above-described technical effects simultaneously.

[0021] Other features and advantages of the present invention will become clear from the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings incorporated in and constituting a part of this specification illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0023] Figure 1 is a schematic plan view of a tooling for double-glass modules provided by the present invention;

[0024] Figure 2 is a perspective view of a tooling for double-glass modules provided by the present invention;

[0025] Figure 3 is an exploded view of a tooling for double-glass modules provided by the present invention;

[0026] Figure 4 is another perspective view of a tooling for double-glass modules provided by the present invention;

[0027] Figure 5 is a flowchart of a laminating method for double-glass modules provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present invention or its application or use.

[0030] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.

[0031] In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0032] It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

[0033] In view of the problems such as glass warping, edge glue overflow, and inability to discharge air bubbles during the lamination process of double-glass modules in the related art, the inventors have made the following research findings: Since the laminator mainly relies on the lower heating plate for heating and temperature control, there is a temperature difference between the upper and lower cavities in the laminator, and the temperature near the upper cover is relatively low. During the lamination process of the double-glass module, the temperature of the lower encapsulation film near the lower heating plate is higher than that of the upper encapsulation film, and the crosslinking speed of the lower encapsulation film is greater than that of the upper encapsulation film. During the lamination process, due to the inconsistent crosslinking speeds of the upper and lower encapsulation films, problems such as low air bubble discharge efficiency or even inability to discharge air bubbles and excessive edge warping may occur inside the double-glass module. At the same time, since the four glass edges of the double-glass module, especially at the four top corners, bear a relatively large pressure during lamination, an edge overpressure effect will occur. Moreover, due to the larger thickness of the double-glass module compared to the single-glass module, the edge overpressure effect is more significant. In addition, since the back glass of the double-glass module is heavier than the backplane, it may cause the four glass edges to easily adhere to the encapsulation film, pollute the appearance of the module, and be difficult to clean. These problems directly affect the performance, quality, and appearance of the double-glass module, and also affect the production yield of the double-glass module lamination process.

[0034] In the related art, before laminating the double-glass module, a circle of high-temperature tape is pasted around the glass to prevent the glue film from melting and overflowing outside the glass during lamination. However, the following problems still exist: Pasting the tape is rather cumbersome. At least two people need to cooperate to paste the tape before lamination and tear it off after lamination, which not only increases the labor cost and labor hours for manufacturing the double-glass module but also greatly reduces the production efficiency. Moreover, a certain gap needs to be reserved between the tape and the double-glass module, and the size of this gap is not easy to control. If it is too large, the edge overpressure prevention effect is poor; if it is too small, it is not conducive to the discharge of edge gas during vacuum pumping, resulting in delamination of the glue film after lamination.

[0035] In view of this, the present invention provides a tooling for laminating a double-glass module and a method for laminating a double-glass module to improve the

[0036] Reference Figure 1 、 Figure 2 and Figure 3 , Figure 1 is a schematic plan view of a tooling for a double-glass module provided by the present invention; Figure 2 is a three-dimensional view of a tooling for a double-glass module provided by the present invention;

[0037] Figure 3It is an exploded view of a tooling for double-glass modules provided by the present invention; the present invention provides a tooling 1 for laminating double-glass modules, which is used to press at least one vertex angle of the double-glass module during lamination. The tooling 1 includes: a top plate 11 and side plates 12, where: the top plate 11 is a right-angled triangular plate, and the bottom surface of the top plate 11 is perpendicularly connected to the side plates 12; the side plates 12 include a first side plate 121 and a second side plate 122, and the first side plate 121 and the second side plate 122 are respectively provided with a first through hole 1211 and a second through hole 1221. The sum of the masses of the top plate 11 and the side plates 12 is 3 kg - 5 kg.

[0038] Specifically, referring to Figure 2 and Figure 3 , the tooling 1 in the present invention has a top plate 11 and side plates 12. The top plate 11 is a right-angled triangular plate with a certain thickness, and can optionally be an isosceles right-angled triangle. The right-angled sides of the right-angled triangular plate can have a chamfer with a certain angle. Of course, for the convenience of manufacturing, the chamfer can also not be made. As shown in Figure 3 , the top plate 11 is not provided with a chamfer. Since the tooling 1 in the present invention is used to press the glass of the double-glass module 2 to be laminated during lamination, it needs to have enough weight to achieve the anti-warping effect. Here, the top plate 11 is made into a right-angled triangular plate with a certain thickness, which can meet the certain weight requirement.

[0039] In the present invention, the sum of the masses of the top plate 11 and the side plates 12 is 3 kg - 5 kg. It should be noted that the top plate 11 needs to have enough weight to press the double-glass module 2 to be laminated, and the side plates 12 need to have enough weight to support the top plate 11. The weight of the tooling 1 can be achieved by adjusting the wall thickness of the side plates 12, so as to adapt to different specifications of the double-glass module 2 to be laminated. If the sum of the masses of the top plate 11 and the side plates 12 is too small, it cannot ensure that the tooling has enough weight to press the glass of the component to be laminated from warping. If the sum of the masses of the top plate 11 and the side plates 12 is too large, it will damage the glass when pressing on the glass of the double-glass module 2 to be laminated. Moreover, at this time, the thickness of the top plate 11 will also be relatively thick, and the laminator will not be able to contact the component to be laminated during lamination, resulting in uneven heating. In this embodiment, the sum of the masses of the top plate 11 and the side plates 12 is 3 kg - 5 kg, which can not only press the double-glass module 2 to be laminated but also does not increase the cost. By pressing on the vertex angles of the double-glass module 2 to be laminated with its own weight, the bubbles in the middle area can be discharged as the adhesive film liquefies, thus not affecting the bubble discharge efficiency. Without changing the lamination process, it can solve the problems such as low or even no bubble discharge efficiency inside the double-glass module 2 to be laminated during lamination, and excessive edge warping caused by the high temperature of the encapsulation adhesive film and inconsistent crosslinking speed during the lamination process of the double-glass module 2 to be laminated.

[0040] Referring to Table 1 below, Table 1 shows the comparison of the warpage rate and breakage rate of double-glass modules with different tooling weights.

[0041] Table 1 Comparison of the warpage rate and breakage rate of double-glass modules with different tooling weights

[0042] Pressed block weight (kg) Warpage rate (%) Breakage rate of double-glass module (%) 0.5 2.89 0 1 2.53 0 1.5 2.08 0 2 1.74 0.2 2.5 1.22 0.4 3 0.97 0.8 3.5 0.83 1.1 4 0.63 1.3 4.5 0.42 1.5 5 0.38 1.8 5.5 0.21 2.8 6 0.14 3.9

[0043] The method for measuring the warpage rate can adopt the methods in the prior art. For example, it can be measured by a laser detection method, and no specific limitation is made here. The method for the breakage rate is to take 100 laminated double-glass modules, and the ratio of the number of damaged double-glass modules to 100 is the breakage rate.

[0044] It can be seen from Table 1 that when the tooling quality is less than 3 kg, the warpage rate is relatively high, and the warpage rate is greater than 1%. When the tooling quality is greater than or equal to 3 kg, the warpage rate is relatively low, and the warpage rate is all below 1%. When the tooling quality is greater than 5 kg, the breakage rate of the double-glass module is relatively high, reaching 2.8% and 3.9%. Therefore, the breakage rate is relatively high. It can be seen that when the tooling quality is greater than or equal to 3 kg and less than or equal to 5 kg, it can not only ensure a lower warpage rate but also not increase the breakage rate of the double-glass module.

[0045] Specifically, the weight of the double-glass module is about 28 kg - 30 kg. In order to press the double-glass module, the ratio of the weight of the tooling to the weight of the double-glass module is 1:10 - 5:28, that is, the sum of the masses of the top plate 11 and the side plate 12 is 3 kg - 5 kg. At this time, it can press the glass of the double-glass module 2 to be laminated and play a role in preventing warping.

[0046] It should be noted that Figure 1 also shows the double-glass module 2 to be laminated. The double-glass module to be laminated in the present invention refers to the double-glass module before lamination. Of course Figure 1 only schematically shows the situation where the tooling 1 is provided at the four top corners of the double-glass module 2 to be laminated, so as to prevent excessive warping of the edges of the glass of the double-glass module 2 to be laminated when heated in the laminator.

[0047] It should be pointed out that the overall structure of the tooling 1 provided by the present invention for laminating the double-glass module 2 to be laminated is simple, easy to manufacture, can be processed by welding or sheet metal technology and is easy to separate from the encapsulation material. There is no special requirement for the laminator. Before lamination, the tooling 1 is pressed on the top corners of the photovoltaic double-glass module 2 to be laminated, and then removed after lamination, and can be recycled. It can not only save costs but also reduce labor intensity. Because of its small design and being made of high-temperature resistant and non-sticky materials, such as stainless steel materials, it is very simple and convenient to clean, and can effectively ensure the lamination operation of the photovoltaic double-glass module 2 to be laminated and the product yield rate.

[0048] The tooling 1 of this embodiment includes a top plate 11 and side plates 12. The side plates 12 are used to support the top plate 11. As known above, the weight of the top plate 11 is large enough to press the double-glass component 2 to be laminated to prevent warping and edge glue overflow. After the side plates 12 support the top plate 11, it can prevent the top plate 11 from damaging the glass. In the present invention, the bottom surface of the top plate 11 is vertically connected to the side, and the weight of the top plate 11 can press the apex angle of the double-glass component 2 to be laminated, which can prevent excessive warping of the edge when the glass is heated in the laminator, thereby eliminating edge glue overflow after lamination.

[0049] As described above, during the lamination process of the double-glass component 2 to be laminated, the temperature of the lower encapsulation film close to the lower heating plate is higher than that of the upper encapsulation film, and the crosslinking speed of the lower encapsulation film is greater than that of the upper encapsulation film. During the lamination process, due to the inconsistent crosslinking speeds of the upper encapsulation film and the lower encapsulation film, the bubble discharge efficiency inside the double-glass component 2 to be laminated is low. In the tooling 1 of this embodiment, the side plates 12 include a first side plate 121 and a second side plate 122. The first side plate 121 and the second side plate 122 are respectively provided with a first through hole 1211 and a second through hole 1221. The first through hole 1211 and the second through hole 1221 can be used to discharge bubbles. During lamination, it does not affect the evacuation of the double-glass component 2 to be laminated, and the bubbles in the film can still be normally discharged through the first through hole 1211 and the second through hole 1221. The tooling 1 for laminating the double-glass component 2 to be laminated of the present invention presses the apex angle of the glass by the weight of its own top plate 11, so that the edge of the glass can still have a slight warping after heating, and the bubbles in the middle area can be discharged as the film liquefies, thus not affecting the bubble discharge efficiency, and thus there is no need to change the lamination process.

[0050] In some alternative embodiments, with continued reference to Figure 2 and Figure 3 , the vertical connection between the top plate 11 and the side plates 12 is a corner joint or a T-shaped joint.

[0051] It should be noted that the side plates 12 and the top plate 11 need to be vertically connected so that the side plates 12 can ensure to be closely attached to the edge of the double-glass component 2 to be laminated during the subsequent lamination process, and the top surface can press the glass of the component to be laminated. In this embodiment, the corner joint means that the side plates 12 are vertically connected to the edge of the top plate 11, such as Figure 2 where the side plates 12 and the top plate 11 are in a corner joint. In this embodiment, the T-shaped joint means that there is a certain distance between the edge of the side plates 12 and the edge of the top plate 11. Since there is a certain spacing between the edge of the side plates 12 and the edge of the top plate 11 during the T-shaped joint, the first side plate 121 and the second side plate 122 can better support the top plate 11 and prevent the top plate 11 from tilting and pressing the double-glass component 2 to be laminated.

[0052] In some alternative embodiments, the first side plate 121 and the second side plate 122 may be L-shaped (not shown in the figure). Bolt holes are provided on the portions of the first side plate 121 and the second side plate 122 that are not connected to the top plate. When using the tooling 1, first place the double-glass component 2 to be laminated on a platform, and then fix the first side plate and the second side plate to the platform through the bolt holes, which can further prevent the edges of the double-glass component 2 to be laminated from warping.

[0053] In some alternative embodiments, continue to refer to Figure 2 and refer to Figure 4 , Figure 4 FIG. is a perspective view of another tooling for the double-glass component 2 to be laminated provided by the present invention. The first side plate 121 and the second side plate 122 are vertically angularly joined, or the extended surface of the first side plate 121 intersects perpendicularly with the extended surface of the second side plate 122.

[0054] As described above, the function of the first side plate 121 and the second side plate 122 is to support the top plate 11. Figure 2 In, the first side plate 121 and the second side plate 122 are vertically angularly joined, that is, one end of the first side plate 121 is vertically connected to one end of the second side plate 122, and the first side plate 121 and the second side plate 122 are arranged with their tops facing each other, thereby supporting the top plate 11.

[0055] Figure 4 In, the extended surface of the first side plate 121 intersects perpendicularly with the extended surface of the second side plate 122, that is Figure 4 in, there is a gap between the first side plate 121 and the second side plate 122. Specifically, the length of the first side plate 121 is less than the length of the right-angled side of the top plate 11 connected thereto, and the length of the second side plate 122 is less than the length of the right-angled side of the top plate 11 to which it is connected. However, it is necessary to ensure that the extended surface of the first side plate 121 intersects perpendicularly with the extended surface of the second side plate 122. On the one hand, it is used to support the top plate 11, and on the other hand, it can also ensure that it is close to the edges of the double-glass component 2 to be pressed during the lamination process.

[0056] In some alternative embodiments, continue to refer to Figure 2 and Figure 3 , the thickness of the top plate 11 is 18 mm - 22 mm, and the thickness of the side plate 12 is 10 mm - 20 mm.

[0057] It should be noted that the side plate 12 includes a first side plate 121 and a second side plate 122, and the structures of the first side plate 121 and the second side plate 122 can be exactly the same. The top plate 11 needs to have a certain thickness to have a certain weight. If the thickness of the top plate 11 is too small, it cannot ensure that it has enough weight to suppress the warping of the glass of the laminate to be laminated. If the thickness of the top plate 11 is too large, the mass of the top plate 11 is too large, and the glass of the laminate to be laminated double-glass module 2 will be damaged when pressed on it. In this embodiment, the thickness of the top plate 11 is 18 mm - 22 mm, which can not only ensure that it has enough weight to suppress the warping of the glass of the laminate to be laminated double-glass module 2, but also will not damage the glass of the laminate to be laminated double-glass module 2.

[0058] On the other hand, the thickness of the side plate 12 cannot be too small. If the thickness of the side plate 12 is too small, it will not have enough hardness to support the top plate 11. If the thickness of the side plate 12 is too large, it will increase the cost and the manufacturing difficulty. In this embodiment, the thickness of the side plate 12 is 10 mm - 20 mm, which can not only ensure that it has enough hardness to support the top plate 11, but also will not increase the cost and the manufacturing difficulty.

[0059] In some alternative embodiments, continue to refer to Figures 2 to 4 , the distance between the bottom edges of the first through hole 1211 and the second through hole 1221 of the tooling 1 and the bottom edges of the first side plate 121 and the second side plate 122 is 1.2 mm - 2.5 mm, and the width of the first through hole 1211 and the second through hole 1221 is 3 mm - 4 mm.

[0060] It should be noted that since the glass edges around the double-glass module 2 to be laminated are under relatively high pressure during lamination, especially at the four top corners, an edge overpressure effect will occur. Moreover, due to the greater thickness of the double-glass module 2 to be laminated compared to the single-glass module, the edge overpressure effect is more significant. In addition, the back glass of the double-glass module 2 to be laminated is heavier than the backplane, resulting in problems such as easy adhesion of the encapsulation film to the glass edges around the periphery, pollution of the module appearance, and difficulty in cleaning. These problems directly affect the performance, quality, and appearance of the double-glass module 2 to be laminated, and also affect the production qualification rate of the lamination process of the double-glass module 2 to be laminated. The side plate 12 of the tooling 1 provided by the present invention for laminating the double-glass module 2 to be laminated is provided with a first through hole 1211 and a second through hole 1221. The distance from the bottom edges of the first through hole 1211 and the second through hole 1221 to the bottom edges of the first side plate 121 and the second side plate 122 is 1.2 mm - 2.5 mm, and the width of the first through hole 1211 and the second through hole 1221 is 3 mm - 4 mm, which can match the glass thickness of the double-glass module 2 to be laminated. Such an opening setting not only ensures that the double-glass module 2 to be laminated does not affect the vacuum pumping during the lamination process, but also ensures that the bubbles in the film and the overflowing encapsulation material are discharged through the through holes for subsequent cleaning, solving the problems such as easy adhesion of the encapsulation film to the glass edges around the periphery, pollution of the module appearance, and difficulty in cleaning after the lamination of the double-glass module 2 to be laminated, and directly improving the performance, quality, and lamination process qualification rate of the double-glass module 2 to be laminated after lamination.

[0061] In some alternative embodiments, with continued reference to Figure 1 , the ratio of the area of the tooling 1 to the area of the double-glass module 2 (i.e., the double-glass module) to be laminated is 19.8:10000 - 20:10000.

[0062] Specifically, the larger the area of the tooling 1, the greater the weight of the tooling 1. For example, if the side lengths of the triangle in the tooling 1 can all be 10 cm, then the area of the tooling 1 is 0.005 m 2 , and the side lengths of the double-glass module 2 to be laminated can be 2.1 m × 1.1 m. At this time, the ratio of the area of the tooling 1 to the area of the double-glass module 2 (i.e., the double-glass module) to be laminated is 20:10000. In this way, the weight of the tooling 1 can press the double-glass module 2 to be laminated, and the tooling itself presses on the top corners of the double-glass module 2 to be laminated through its own weight, preventing the edges of the double-glass module 2 to be laminated from warping, and enabling the bubbles in the middle area to be discharged as the film liquefies.

[0063] In some alternative embodiments, with continued reference to Figures 2 to 4 The cross-section of the first through hole 1211 and the second through hole 1221 is any one of a rectangle, a keyway shape, and an ellipse.

[0064] Figures 2 to 4Only the shapes of the first through hole 1211 and the second through hole 1221 are schematically shown as rectangular. Of course, they can also be keyway-shaped or oval, as long as it can ensure that the air bubbles inside the double-glass component 2 to be laminated are discharged through the first through hole 1211 and the second through hole 1221 during the lamination process. The number of the first through hole 1211 and the second through hole 1221 is not specifically limited here, and one, two, three or more than three first through holes 1211 and second through holes 1221 can be provided.

[0065] In some alternative embodiments, with continued reference to Figures 2 to 4 , the number of the first through hole 1211 and the second through hole 1221 is one. The first through hole 1211 extends along a first direction, and the second through hole 1221 extends along a second direction. The first direction is the extending direction of the first side plate 121, and the second direction intersects the first direction.

[0066] Specifically, the first through hole 1211 is a long strip through hole, and the first through hole 1211 extends along the extending direction of the first side plate 121. The second through hole 1221 is a long strip through hole, and the second through hole 1221 extends along the extending direction of the second side plate 122. As shown in Figure 2 and Figure 4 , the first direction and the second direction intersect. The first through hole 1211 and the second through hole 1221 are one, and the first through hole 1211 and the second through hole 1221 are long strips. At this time, the areas of the first through hole 1211 and the second through hole 1221 are the largest, and the air bubbles inside the double-glass component 2 to be laminated can be discharged through the first through hole 1211 and the second through hole 1221 to the greatest extent.

[0067] Based on the same inventive concept, the present invention also provides a lamination method for the double-glass component 2 to be laminated. With reference to Figure 5 , Figure 5 is a flowchart of the lamination method for the double-glass component 2 to be laminated provided by the present invention. In combination with Figure 1 , as shown in Figure 5 , the lamination method for the double-glass component 2 to be laminated includes the following steps:

[0068] S1: Take the double-glass component 2 to be laminated;

[0069] S2: Place the tooling 1 at at least one vertex angle of the double-glass component 2 to be laminated;

[0070] S3: Laminate the double-glass component 2 to be laminated.

[0071] Specifically, the tooling 1 can be placed at a vertex of the double-glass component 2 to be laminated, or at the diagonal of the double-glass component 2 to be laminated, or at the four vertices of the double-glass component 2 to be laminated, all of which can improve the problems of warping of the glass and edge glue overflow during the lamination process of the double-glass component 2 to be laminated to varying degrees.

[0072] In S3, the process of laminating the double-glass component 2 to be laminated specifically includes: placing a glass laminate with a front glass, an upper encapsulation film, a battery cell, a lower encapsulation film, and a back glass in a laminator, evacuating the air in the component by vacuuming, and heating and laminating to melt the upper encapsulation film and the lower encapsulation film, and encapsulating the double-glass component 2 to be laminated into a whole under atmospheric pressure.

[0073] It can be understood that the weight of the double-glass component is about 28 kg - 30 kg. In order to press the double-glass component, the weight ratio of the tooling to the double-glass component is 1:10 - 5:28, that is, the sum of the masses of the top plate 11 and the side plates 12 is 3 kg - 5 kg. At this time, it can press the glass of the double-glass component 2 to be laminated and play a role in preventing warping.

[0074] In some alternative embodiments, the inner walls of the first side plate 121 and the second side plate 122 of the tooling 1 are closely attached to the vertex angle of the double-glass component 2 to be laminated, and there is a gap of 1 mm - 2 mm between the bottom surface of the top plate 11 of the tooling 1 and the upper surface of the double-glass component 2 to be laminated.

[0075] The inner walls of the first side plate 121 and the second side plate 122 of the tooling 1 are closely attached to the outer edge of the vertex angle of the double-glass component 2 to be laminated, so as to ensure that the first through hole 1211 on the first side plate 121 and the second through hole 1221 on the second side plate 122 are connected to the inside of the double-glass component 2 to be laminated, and it does not affect the vacuum extraction at the four corners of the glass during lamination, and the bubbles in the glue film can still be normally discharged for exhaust. It should be noted that there is a gap of 1 mm - 2 mm between the bottom surface of the top plate 11 of the tooling 1 and the upper surface of the double-glass component 2 to be laminated, because the double-glass component 2 to be laminated will be heated during the lamination process and will expand to a certain extent. Leaving a certain gap can prevent the top plate 11 of the tooling 1 from pressing and damaging the glass of the double-glass component 2 to be laminated. On the contrary, if the bottom surface of the top plate 11 of the tooling 1 is closely attached to the upper surface of the double-glass component 2 to be laminated, when the double-glass component 2 to be laminated is heated and expands during lamination, and the weight of the tooling 1 is relatively large, it is very easy to press and damage the glass of the double-glass component 2 to be laminated.

[0076] Through the above embodiments, it can be seen that the tooling for double-glass component lamination and the double-glass component lamination method provided by the present invention at least achieve the following beneficial effects:

[0077] The tooling for laminating double-glass modules of the present invention includes a top plate and side plates. The bottom surface of the top plate is perpendicularly connected to the sides. By using the weight of the top plate, the top corners of the double-glass modules can be pressed down, which can prevent excessive warping of the edges of the glass when heated in the laminator, thereby eliminating edge glue overflow after lamination.

[0078] The side plates of the tooling for laminating double-glass modules of the present invention include a first side plate and a second side plate. The first side plate and the second side plate are respectively provided with a first through hole and a second through hole. The first through hole and the second through hole can be used to discharge air bubbles, and it does not affect the evacuation of the double-glass module during lamination. The air bubbles in the glue film can still be normally discharged through the first through hole and the second through hole. The tooling for laminating double-glass modules of the present invention presses the top corners of the glass by the weight of its own top plate, so that the edges of the glass can still have slight warping after heating, and the air bubbles in the middle area can be discharged as the glue film liquefies, thus not affecting the air bubble discharge efficiency, and therefore there is no need to change the lamination process.

[0079] Compared with the process of using adhesive tape in the prior art, the tooling for laminating double-glass modules of the present invention is simpler in operation, more time-saving, can improve the lamination rhythm, and increase the production speed of the production line.

[0080] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A tooling for lamination of double-glass modules, characterized in that It is used to press at least one vertex angle of the double-glass module during lamination to prevent edge warping. The tooling includes a top plate and side plates, wherein: The top plate is a right-angled triangular plate, and the bottom surface of the top plate is perpendicularly connected to the side plates; there is a gap of 1 mm - 2 mm between the bottom surface of the top plate of the tooling and the upper surface of the double-glass module to be laminated; The side plates include a first side plate and a second side plate, and the first side plate and the second side plate are respectively provided with a first through hole and a second through hole; The sum of the masses of the top plate and the side plates is 3 kg - 5 kg.

2. The tooling for lamination of double-glass modules according to claim 1, characterized in that, The perpendicular connection is an angular connection or a T-shaped connection.

3. The tooling for laminating double-glass modules according to claim 1, characterized in that, The first side plate and the second side plate are perpendicularly angularly connected, or the extended surface of the first side plate intersects perpendicularly with the extended surface of the second side plate.

4. The tooling for laminating double-glass modules according to claim 1, characterized in that, The thickness of the top plate is 18 mm - 22 mm, and the thickness of the side plates is 10 mm - 20 mm.

5. The tooling for laminating double-glass modules according to claim 1, wherein The distance from the bottom edges of the first through hole and the second through hole of the tooling to the bottom edges of the first side plate and the second side plate is 1.2 mm - 2.5 mm, and the width of the first through hole and the second through hole is 3 mm - 4 mm.

6. The tooling for lamination of double-glass modules according to claim 1, wherein, The ratio of the area of the tooling to the area of the double-glass module is 19.8:10000 - 20:10000.

7. The tooling for laminating double-glass modules according to claim 1, characterized in that, The cross-sections of the first through hole and the second through hole are any one of a rectangle, a keyway shape, and an ellipse.

8. The tooling for laminating double-glass modules according to claim 7, characterized in that, The number of the first through hole and the second through hole is 1. The first through hole extends along a first direction, and the second through hole extends along a second direction. The first direction is the extending direction of the first side plate, and the second direction intersects with the first direction.

9. A method for laminating a double-glass module, characterized in that, Including: Take the double-glass module to be laminated; Place the tooling according to any one of claims 1 - 8 at at least one vertex angle of the double-glass module to be laminated. The inner walls of the first side plate and the second side plate of the tooling are closely attached to the vertex angle of the double-glass module to be laminated, and there is a gap of 1 mm - 2 mm between the bottom surface of the top plate of the tooling and the upper surface of the double-glass module to be laminated; Laminate the double-glass module to be laminated.

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