Vacuum sealed toughened glass battery packaging structure and manufacturing method thereof

Abstract

The application provides a vacuum sealed tempered glass battery packaging structure and a manufacturing method thereof. The vacuum sealed tempered glass comprises a plurality of welding layers, the plurality of welding layers are arranged in a stack, at least one outer welding layer in the plurality of welding layers is made of plated tempered glass, and a sealing frame is arranged between adjacent two welding layers. The sealing frame is welded and fixed with the adjacent two welding layers to form a vacuum closed space. A first sealing material is sprayed or cold-pressed on the outer side of the sealing frame and the adjacent welding layer to form a sealing coating.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of vacuum sealed toughened glass and its manufacturing method. BACKGROUND

[0002] With the improvement of energy-saving emission reduction requirements, the heat insulation requirement of vacuum sealed toughened glass is also improved. Therefore, a new vacuum sealed toughened glass and a vacuum toughened glass low-temperature processing technology are needed to meet the heat insulation requirement of vacuum sealed toughened glass.

[0003] In addition, the power generation efficiency of perovskite solar cells rapidly increases from laboratory to small-scale production in factory, but the hydrolysis and oxidation self-decomposition of the absorption layer of perovskite solar cells affects the service life of the battery, so a new vacuum sealed toughened glass and a vacuum toughened glass low-temperature processing technology are needed to package perovskite solar cells in a vacuum toughened glass sealed cavity and then fill protective gas after forming a vacuum sealed cavity in the vacuum toughened glass to prolong the service life of the battery.

[0004] To solve the above technical problems, a new vacuum sealed toughened glass and its manufacturing method are needed. SUMMARY

[0005] One of the purposes of the present application is to overcome at least one of the deficiencies in the prior art and provide a vacuum sealed toughened glass battery packaging structure and its manufacturing method.

[0006] To achieve the above purpose, the present application realizes the following technical solutions:

[0007] According to the first aspect of the present application, a vacuum sealed toughened glass is provided. The vacuum sealed toughened glass comprises:

[0008] a plurality of welding layers, the plurality of welding layers are stacked, at least one outer welding layer in the plurality of welding layers is made of plated film toughened glass; and

[0009] a sealing frame, the sealing frame is arranged between adjacent two welding layers; the sealing frame is welded and fixed with the adjacent two welding layers respectively, and together forms a vacuum closed space;

[0010] A first sealing material is sprayed or cold-pressed on the outside of the sealing frame and the adjacent welding layer to form a sealing coating.

[0011] Optionally, the welding layer is a glass layer, the sealing frame is a glass frame, the first sealing material is an indium-containing alloy, the sealing coating is an indium-containing alloy coating, and the thickness of the sealing coating is 0.3mm to 1mm; and / or,

[0012] At least one outer welding layer of the plurality of welding layers is provided with a prefabricated encapsulation hole; the prefabricated encapsulation hole is configured to form a sealing block after the sealing frame is respectively welded with the two adjacent welding layers, the sealing coating is sprayed or cold-pressed, vacuumized, and the second sealing material is put in; the second sealing material is an indium-containing alloy, and the sealing block is an indium-containing alloy sealing block; and / or,

[0013] The sealing frame is an annular closed structure arranged around the edge of the welding layer; a support bar or a support block is arranged between the two adjacent welding layers, and the support bar or the support block is uniformly arranged on the inner side of the sealing frame.

[0014] Optionally, the plurality of welding layers comprises a first glass layer and a second glass layer;

[0015] At least one of the first glass layer and the second glass layer is made of coated tempered glass;

[0016] The sealing frame is a glass frame arranged between the first glass layer and the second glass layer, and a weld is formed by laser scanning at the bonding interface between the sealing frame and the first glass layer and the second glass layer.

[0017] Optionally, the first glass layer and the second glass layer are formed by laser film removal on four sides after tempering of the coated glass, and the film removal width of the first glass layer and the second glass layer is greater than the edge width of the sealing frame; and / or,

[0018] The first glass layer and / or the second glass layer is provided with a prefabricated encapsulation hole; the prefabricated encapsulation hole is configured to be put into an indium-containing alloy ball and extruded to form an indium-containing alloy sealing block after the sealing frame is respectively welded with the first glass layer and the second glass layer and the sealing coating is sprayed.

[0019] Optionally, an inner surface of the first glass layer or the second glass layer is provided with a battery layer;

[0020] A prefabricated lead hole is arranged through the first glass layer or the second glass layer;

[0021] A prefabricated lead connection block is placed in the prefabricated lead hole, and the prefabricated lead connection block is electrically connected with the battery layer;

[0022] A sealing insulator is arranged between the prefabricated lead connection block and the inner wall of the prefabricated lead hole.

[0023] Optionally, the vacuum closed space is filled with a protective gas; and / or,

[0024] The sealing insulation is a sintered body formed by low-melting-point glass powder or glass paste filled between the prefabricated conductor joint block and the inner wall of the prefabricated conductor hole after glass tempering; and / or,

[0025] The battery layer adopts a perovskite solar cell; an infrared reflection film is arranged on the outer surface of the first glass layer and / or the second glass layer, and the infrared reflection film is a metal film or a compound film, which is used for reflecting infrared light back to the battery layer.

[0026] Optionally, the plurality of welding layers comprises an intermediate glass layer and two outer glass layers respectively located on both sides of the thickness direction of the intermediate glass layer;

[0027] At least one of the two outer glass layers adopts a coated tempered glass;

[0028] The sealing frame is arranged between the intermediate glass layer and the outer glass layer;

[0029] A welding seam is formed by laser scanning at the bonding interface between the sealing frame and the intermediate glass layer and the outer glass layer.

[0030] Optionally, a welding seam is formed by laser scanning at the bonding interface between the intermediate glass layer and the two sealing frames on both sides of the thickness direction of the intermediate glass layer to form an intermediate body; a welding seam is formed by laser scanning at the bonding interface between the two outer glass layers and the two sealing frames of the intermediate body, respectively; and / or,

[0031] The two outer glass layers are formed by laser film removal on four sides after coated glass tempering, and the film removal width of the two outer glass layers is greater than the edge width of the sealing frame; and / or,

[0032] The two outer glass layers are respectively provided with prefabricated packaging holes; the prefabricated packaging holes are configured to be filled with indium-containing alloy balls and extruded to form indium-containing alloy blocks after the sealing frame is welded with the first glass layer and the second glass layer, respectively, and the sealing coating is sprayed and formed.

[0033] According to a second aspect of the present application, a method for manufacturing vacuum-sealed tempered glass is provided. The method for manufacturing vacuum-sealed tempered glass comprises:

[0034] A prefabricated packaging hole is formed by laser drilling on at least one outer welding layer in the plurality of welding layers, and at least one outer welding layer in the plurality of welding layers adopts a coated tempered glass;

[0035] The plurality of welding layers are stacked and pressed tightly, and a sealing frame and a supporting strip or a supporting block located inside the sealing frame are arranged between the two adjacent welding layers, and the sealing frame is laser welded and fixed with the two adjacent welding layers, respectively;

[0036] sealingly spraying or cold-pressing a first sealing material on the outer side of the sealing frame at the abutting position of the sealing frame and the adjacent welding layer to form a sealing coating, and shaping the vacuumized tempered glass;

[0037] vacuumizing the vacuumized tempered glass in a vacuum chamber;

[0038] placing a second sealing material in the pre-prepared encapsulation hole and extruding the second sealing material to form an encapsulation block after vacuumizing.

[0039] Optionally, the plurality of welding layers comprises a first glass layer and a second glass layer.

[0040] At least one of the first glass layer and the second glass layer is tempered glass after being plated, and is shaped by laser film removal on four sides.

[0041] The sealing frame is a glass frame arranged between the first glass layer and the second glass layer.

[0042] The pre-prepared encapsulation hole is arranged through the first glass layer or the second glass layer.

[0043] The plurality of welding layers are arranged in layers and are pressed and abutted, and a sealing frame and a support strip or a support block arranged inside the sealing frame are arranged between two adjacent welding layers, and the sealing frame is laser welded and fixed with the two adjacent welding layers, comprising:

[0044] The first glass layer, the sealing frame, the support strip or the support block, and the second glass layer are arranged in layers and are pressed and abutted.

[0045] The sealing frame is laser scanned to form a welding seam at the abutting interface between the first glass layer and the second glass layer.

[0046] Optionally, the plurality of welding layers comprises a first glass layer and a second glass layer, and at least one of the first glass layer and the second glass layer is tempered glass after being plated.

[0047] The pre-prepared encapsulation hole is formed on at least one outer welding layer in the plurality of welding layers by laser drilling, comprising:

[0048] The pre-prepared encapsulation hole is formed on the first glass layer or the second glass layer by laser drilling.

[0049] The pre-prepared lead hole is formed on the first glass layer or the second glass layer by laser drilling.

[0050] The pre-prepared lead connection block is placed in the pre-prepared lead hole.

[0051] filling a sealing insulation material in the pre-prepared wire hole;

[0052] tempering the first glass layer or the second glass layer, so that the sealing insulation material forms a sintered body;

[0053] preparing a battery layer on the inner side surface of the first glass layer or the second glass layer;

[0054] after the step of placing the vacuumized tempered glass into the vacuum chamber, further comprising:

[0055] placing a protective gas into the vacuum chamber.

[0056] Optionally, the battery layer is a perovskite solar cell.

[0057] An infrared reflective film is arranged on the outer side surface of the first glass layer and / or the second glass layer; the infrared reflective film is a metal film or a compound film, and is used to reflect infrared light back to the battery layer.

[0058] Optionally, the plurality of welding layers comprises an intermediate glass layer, and a first outer glass layer and a second outer glass layer respectively arranged on both sides of the intermediate glass layer in the thickness direction; at least one of the first outer glass layer and the second outer glass layer is tempered glass with a film; the first sealing frame and the first support strip or support block arranged inside the first sealing frame are arranged between the intermediate glass layer and the first outer glass layer; the second sealing frame and the second support strip or support block arranged inside the second sealing frame are arranged between the intermediate glass layer and the second outer glass layer.

[0059] The first outer glass layer and the second outer glass layer are respectively laser-perforated to form the pre-prepared packaging hole;

[0060] At least one of the first outer glass layer and the second outer glass layer is tempered after being made of film-coated glass, and is laser-decoated on four sides to form a shape;

[0061] The step of stacking and pressing the plurality of welding layers comprises:

[0062] The first sealing frame, the intermediate glass layer, and the second sealing frame are sequentially stacked and pressed and adhered;

[0063] The intermediate glass layer and the first sealing frame and the second sealing frame are laser-scanned at the adhering interfaces therebetween to form a welding seam, thereby forming an intermediate body.

[0064] The first outer glass layer, the first supporting strip or supporting block, the intermediate body, the second supporting strip or supporting block and the second outer glass layer are sequentially stacked and tightly adhered;

[0065] Laser scanning is performed on the first sealing frame adhering interface between the first outer glass layer and the intermediate body and the second sealing frame adhering interface between the second outer glass layer and the intermediate body to form a welding seam.

[0066] Optionally, the second sealing material is placed in the prefabricated packaging hole, and the second sealing material is extruded to form a packaging block after vacuumizing.

[0067] The indium-containing alloy ball is placed in the prefabricated packaging hole.

[0068] The indium-containing alloy ball is extruded by a pressure cone to form an indium-containing alloy packaging block.

[0069] Unlike the prior art, the vacuum-sealed tempered glass and the manufacturing method thereof provided by the present application use plated tempered glass for at least one outer welding layer of the plurality of welding layers of the vacuum-sealed tempered glass, so that the heat transfer coefficient of the vacuum-sealed tempered glass formed by welding is low, and the heat insulation requirement can be met.

[0070] A sealing frame is arranged between the two adjacent welding layers, and the sealing frame is welded and fixed with the two adjacent welding layers, and the two adjacent welding layers and the sealing frame jointly form a vacuum closed space. The first sealing material is sprayed or cold-pressed on the outer side of the adhering place between the sealing frame and the adjacent welding layer to form a sealing coating, the sealing coating is arranged at the adhering place between the sealing frame and the welding layer, and the gap between the welding layer and the sealing frame can be effectively blocked, and the sealing effect of the vacuum closed space of the vacuum-sealed tempered glass is good.

[0071] The welding layer and the sealing frame can be made of glass, and the first sealing material can be made of indium-containing alloy. The indium-containing alloy is sprayed or cold-pressed on the outer side of the adhering place between the glass frame and the adjacent glass layer to form a sealing coating. The metal indium in the indium-containing alloy has ductility and has wettability with glass. The indium-containing alloy sprayed or cold-pressed on the outer surface of the glass can form a firm indium-containing alloy coating, the indium-containing alloy coating has good adhesion strength with the glass, and the sealing performance is better and more reliable.

[0072] One of the plurality of welding layers can be provided with a prefabricated packaging hole. After the sealing frame is welded with the two adjacent welding layers and the sealing coating is formed by spraying, the second sealing material is placed in the prefabricated packaging hole to form a sealing block, so that the packaging of the vacuum-sealed tempered glass is facilitated, the sealing performance is better, and the sealing is more reliable.

[0073] The battery layer can be encapsulated in a vacuum-enclosed space of the vacuum-sealed tempered glass, avoiding the influence of hydrolytic oxidation and self-decomposition of the battery absorption layer on the service life of the battery. The vacuum-enclosed space can be filled with protective gas, which can protect the battery and prolong the service life of the battery.

[0074] The battery layer can adopt a perovskite solar cell arranged on the inner side surface of the outer glass layer. When the perovskite solar cell is encapsulated, a reserved wire hole is added on the outer glass layer, a reserved wire connecting block is placed in the reserved wire hole before the glass is tempered, and low-melting-point glass powder or glass paste is added to form a sintered body during glass tempering. The outer side surface of the outer glass layer is coated with an infrared reflective film. The infrared reflective film can adopt a metal film or a compound film, which can reflect infrared light back to the battery layer, not only reflecting the infrared light that has passed through the outer glass layer back to the battery layer to improve the utilization rate of light energy, but also reducing the diffusion of heat energy outward from the battery.

[0075] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, which description should be taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0076] Figure 1 The structure schematic diagram of the vacuum-sealed tempered glass provided for the first embodiment of the present application.

[0077] Figure 2 The structure schematic diagram of the vacuum-sealed tempered glass provided for the second embodiment of the present application.

[0078] Figure 3 The structure schematic diagram of the vacuum-sealed tempered glass provided for the third embodiment of the present application. Figure 2 The cross-sectional view of the first glass layer along the direction of B-B.

[0079] Figure 4 The structure schematic diagram of the vacuum-sealed tempered glass provided for the third embodiment of the present application.

[0080] Figure 5 The structure schematic diagram of the vacuum-sealed tempered glass provided for the third embodiment of the present application. Figure 4 The structure schematic diagram of the intermediate body in the vacuum-sealed tempered glass.

[0081] In the figure: 1-first glass layer, 2-sealing frame, 2A-first sealing frame, 2B-second sealing frame, 3-supporting strip or supporting block, 3A-first supporting block, 3B-second supporting block, 4-second glass layer, 5-intermediate glass layer, 6-sealing block, 7-welding seam, 8-prepared encapsulation hole, 9-sealing coating, 20-infrared reflective film, 11-prepared wire hole, 12-sintered body, 14-wire connecting block, 15-solar cell. DETAILED DESCRIPTION

[0082] The technical solutions of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0083] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0084] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0085] It should be noted that the "up", "down", "left", "right" and other directional words described in the embodiments of the present application are described from the angle shown in the drawings, and should not be understood as a limitation on the embodiments of the present application. In addition, in the context, it should also be understood that when referring to an element connected "on" or "under" another element, it can be directly connected "on" or "under" another element, or indirectly connected "on" or "under" another element through an intermediate element.

[0086] First embodiment:

[0087] According to the first embodiment of the present application, a vacuum sealed tempered glass is provided. Please refer to Figure 1 , the vacuum sealed tempered glass comprises a plurality of welded layers and a closed sealing frame 2. The plurality of welded layers are stacked. Two outer sides of the plurality of welded layers are respectively provided with two outer side welded layers 1, 4. At least one outer side welded layer of the plurality of welded layers adopts a coated tempered glass. For example, the coated tempered glass can adopt a low-e coated tempered glass (Low emissivity). For example, the coated tempered glass can adopt a coated tempered glass coated with an infrared reflective film.

[0088] The sealing frame 2 is arranged between the adjacent two welded layers, and each sealing frame 2 is welded and fixed with the adjacent two welded layers. The adjacent two welded layers and the sealing frame 2 jointly form a vacuum closed space.

[0089] The first sealing material is sprayed or cold-pressed on the outer side of the sealing frame 2 and the adjacent welded layer, thereby forming a sealing coating 9.

[0090] At least one outer welding layer of the plurality of welding layers of the vacuum sealed tempered glass in the embodiment is coated tempered glass. The coated tempered glass has a low heat transfer coefficient, so that the vacuum sealed tempered glass has a low heat transfer coefficient after welding, which can meet the required heat insulation requirements. For example, the heat transfer coefficient of the vacuum sealed tempered glass can be less than 0.8 w / m 2 ·k.

[0091] The sealing coating 9 is arranged at the bonding position between the sealing frame 2 and the welding layer, which can effectively block the gap between the welding layer and the sealing frame 2, and the vacuum sealed tempered glass has good sealing effect of the vacuum sealed space.

[0092] In an optional example, referring to Figure 1 The sealing frame 2 can be a ring-shaped closed structure arranged around the edge of the welding layer. A support strip or a support block 3 is arranged between each two adjacent welding layers, and the support strip or the support block 3 is located on the inner side of the sealing frame 2. A plurality of support strips or support blocks 3 can be uniformly arranged on the inner side of the sealing frame 2. The support strip or the support block 3 arranged between the two adjacent welding layers can provide support, so as to avoid the contact between the two adjacent welding layers after the vacuum layer is formed in the cavity surrounded by the two adjacent welding layers and the sealing frame 2. For example, the welding layer can be arranged in a rectangular structure, and a plurality of rectangular structure welding layers are stacked. The sealing frame 2 is a ring-shaped closed structure surrounding the edge of the rectangular welding layer, which specifically includes four sealing strips connected in a loop.

[0093] The welding layer can be made of glass material, which is a glass layer. The sealing frame 2 can be made of glass material, which is a glass frame 2. The first sealing material can be an indium-containing alloy. The sealing coating 9 is correspondingly arranged as an indium-containing alloy coating. The thickness of the sealing coating 9 can be 0.3 mm to 1 mm. For example, the first sealing material can be an indium-containing low-melting-point alloy, and the sealing coating 9 is an indium-containing low-melting-point alloy coating.

[0094] The first sealing material is an indium-containing alloy, which is sprayed on the outer side of the bonding position between the glass frame 2 and the adjacent glass layer to form the sealing coating 9, so as to seal the outer side of the bonding position between the glass frame 2 and the glass layer. The indium in the indium-containing alloy has ductility and has wettability with glass. The indium-containing alloy sprayed on the outer surface of the glass can form a firm indium-containing alloy coating, and the indium-containing alloy coating has good adhesion strength with the glass, so that the sealing performance is good and reliable.

[0095] The edge side of the sealing frame 2 can be provided with a prefabricated mask plate. The prefabricated mask plate is arranged in close contact with the edge side surface of the sealing frame 2. The width of the prefabricated mask plate is greater than the thickness of the sealing frame 2, so that the prefabricated mask plate can tightly cover the sealing frame 2 and the bonding position between the sealing frame 2 and the welding layer. For example, the sealing frame 2 is a ring-shaped closed structure surrounding the edge of the rectangular welding layer, and the prefabricated mask plate is in close contact with the four edge sides of the sealing frame 2 to form a four-sided enclosure.

[0096] The indium-containing alloy can be sprayed by low-pressure cold spraying, the indium-containing alloy powder is added into a powder feeder, the spraying gas pressure is set to 0.4-0.6 MP, the nozzle distance from the mask plate is 1-3 cm, and the moving speed is 50 mm / s-100 mm / s, so that the indium-containing alloy coating with a thickness of 0.3 mm to 1 mm is formed at the bonding position of the glass frame 2 and the adjacent glass layer.

[0097] The outer side welding layer in the plurality of welding layers can be provided with a prefabricated packaging hole 8. The outer side welding layer is made of plated tempered glass. The prefabricated packaging hole 8 can be a tapered step hole prefabricated before tempering of the outer side welding layer. The prefabricated packaging hole 8 is arranged through the outer side welding layer, and the outer side hole diameter can be set to 2 mm-3 mm, and the inner side hole diameter is 1 mm.

[0098] After the sealing frame 2 is respectively welded with the two adjacent welding layers, and the sealing coating 9 is sprayed or cold-pressed, the second sealing material is placed into the prefabricated packaging hole 8 after the prefabricated packaging hole 8 is vacuumized, so that the sealing block 6 is formed.

[0099] The second sealing material can be an indium-containing alloy. The sealing block 6 corresponds to an indium-containing alloy sealing block. For example, the second sealing material can be an indium-containing low-melting-point alloy, and the sealing block 6 is an indium-containing low-melting-point alloy coating.

[0100] The plurality of welding layers can be arranged as required.

[0101] In the embodiment, please refer to Figure 1 , the plurality of welding layers include a first glass layer 1 and a second glass layer 4. At least one of the first glass layer 1 and the second glass layer 4 is made of plated tempered glass. The sealing frame 2 is a glass frame 2 arranged between the first glass layer 1 and the second glass layer 4. The laser scanning is performed at the bonding interface between the sealing frame 2 and the first glass layer 1 and the second glass layer 4 to form a welding seam 7. The first sealing material is sprayed outside the bonding position of the sealing frame 2 and the first glass layer 1 and the second glass layer 4, so that the sealing coating 9 is formed.

[0102] At least one of the first glass layer 1 and the second glass layer 4 can be made of plated tempered glass, so that the heat transfer coefficient of the vacuum-sealed tempered glass formed by welding is low, and the heat insulation requirement can be met. For example, the heat transfer coefficient of the vacuum-sealed tempered glass can be lower than 0.8 w / m 2 ·k.

[0103] The first sealing material is sprayed outside the bonding position of the sealing frame 2 and the first glass layer 1 and the second glass layer 4 to form the sealing coating 9, the sealing coating 9 is arranged at the bonding position between the sealing frame 2 and the welding layer, can effectively block the gap between the welding layer and the sealing frame 2, and the sealing, heat insulation and heat preservation effect of the vacuum-sealed space of the vacuum-sealed tempered glass is better.

[0104] The first glass layer 1 and / or the second glass layer 4 is formed by laser removing film from four edges after tempering. The film removing width of the first glass layer 1 and the second glass layer 4 is greater than the edge width of the sealing frame 2, so that the sealing frame 2 and the first glass layer 1 and the second glass layer 4 form a space for accommodating the pre-made mask plate. For example, the film removing width of the first glass layer 1 and the second glass layer 4 is 2mm greater than the widened sealing frame 2.

[0105] The edge side of the sealing frame 2 can be tightly surrounded by the pre-made mask plate, and the width of the pre-made mask plate is greater than the thickness of the sealing frame 2, so that the pre-made mask plate can tightly cover the glass frame 2 and the joint between the glass frame 2 and the first glass layer 1 and the second glass layer. For example, the width of the pre-made mask plate is 2mm greater than the thickness of the sealing frame 2.

[0106] The first glass layer 1 and / or the second glass layer 4 can be provided with a pre-made packaging hole 8. The pre-made packaging hole 8 can be a tapered stepped hole pre-made before tempering of the first glass layer 1 or the second glass layer 4; the pre-made packaging hole 8 is provided through the first glass layer 1 or the second glass layer 4, and the outer diameter of the pre-made packaging hole 8 can be set to 2mm-3mm, and the inner diameter of the pre-made packaging hole 8 can be set to 1mm.

[0107] After the sealing frame 2 is welded with the first glass layer 1 and the second glass layer 4 respectively, and the first sealing material is sprayed or cold-pressed outside the joint between the sealing frame 2 and the adjacent welded layer to form a sealing coating 9, the indium-containing alloy ball can be put into the pre-made packaging hole 8 after the pre-made packaging hole 8 is vacuumized, and the indium-containing alloy ball can be extruded to form an indium-containing alloy block in the pre-made packaging hole 8.

[0108] According to the same inventive concept, the embodiment also provides a vacuum sealed tempered glass manufacturing method. Please refer to Figure 1 The vacuum sealed tempered glass manufacturing method comprises the following steps:

[0109] Step one:

[0110] A pre-made packaging hole 8 is formed on at least one outer welded layer in the plurality of welded layers by laser drilling. At least one outer welded layer in the plurality of welded layers is made of plated tempered glass.

[0111] In this step, the plurality of welded layers comprises a first glass layer 1 and a second glass layer 4. At least one of the first glass layer 1 and the second glass layer 4 is made of plated glass. The pre-made packaging hole 8 can be a tapered stepped hole pre-made before tempering of the first glass layer 1 or the second glass layer 4; the pre-made packaging hole 8 is provided through the first glass layer 1 or the second glass layer 4, and the outer diameter of the pre-made packaging hole 8 can be set to 2mm-3mm, and the inner diameter of the pre-made packaging hole 8 can be set to 1mm.

[0112] The first glass layer 1 and the second glass layer 4 are shaped by laser defilming after being tempered, for example, the defilming width of the first glass layer 1 and the second glass layer 4 is the width of the sealing frame 2 plus 2mm.

[0113] Step two:

[0114] The plurality of welding layers are stacked and pressed tightly, and the sealing frame 2 and the support strip or support block 3 inside the sealing frame 2 are arranged between the adjacent two welding layers, and the sealing frame 2 is laser welded and fixed with the adjacent two welding layers.

[0115] In this step, the sealing frame 2 is a glass frame 2 arranged between the first glass layer 1 and the second glass layer 4.

[0116] This step two can include the following subdivision steps:

[0117] The first glass layer 1, the sealing frame 2 and the support strip or support block 3, and the second glass layer 4 are sequentially stacked and pressed tightly, for example, the first glass layer 1, the sealing frame 2 and the support strip or support block 3, and the second glass layer 4 can be sequentially aligned and pressed by mechanical pressure. A plurality of support strips or support blocks 3 can be uniformly and spacedly arranged inside the sealing frame 2.

[0118] The sealing frame 2 is laser scanned to form a weld 7 at the bonding interface between the first glass layer 1 and the second glass layer 4, respectively. For example, an ultra-short pulse laser can be used to laser scan the bonding interface between the sealing frame 2 and the first glass layer 1 and the second glass layer 4 to form a weld 7, thereby forming a complete enclosure structure.

[0119] Step three: The first sealing material is sealed and sprayed or cold-pressed on the outside of the bonding interface between the sealing frame 2 and the adjacent welding layer to form a sealing coating 9, thereby forming the vacuumized tempered glass.

[0120] Specifically, this step can include the following detailed steps:

[0121] The prefabricated mask plate is tightly surrounded on the outside of the sealing frame 2, respectively.

[0122] The indium-containing alloy powder is added to the powder feeder, the spraying gas pressure is set to 0.4-0.6MP, the nozzle distance from the mask plate is 1-3cm, and the moving speed is 50mm / s-100mm / s, thereby forming a sealing coating 9 with a thickness of 0.3mm to 1mm.

[0123] Step four: The vacuumized tempered glass is placed in a vacuum chamber for vacuumization.

[0124] In this step, when the vacuumized tempered glass is placed in the vacuum chamber, the vacuum chamber can be vacuumized to 10 -1 Pa.

[0125] Step five: placing the second sealing material in the pre-prepared packaging hole 8, and extruding the second sealing material to form the packaging block 6.

[0126] This step can specifically include the following detailed steps:

[0127] The indium-containing alloy ball is placed in the pre-prepared packaging hole 8.

[0128] The indium-containing alloy ball is extruded and compressed by a pressure cone to form an indium-containing alloy block. For example, the pressure cone can use a pressure greater than 1 kilogram.

[0129] Step six: releasing the vacuum of the vacuum chamber, and taking out the packaged vacuum-sealed tempered glass.

[0130] At least one outer solder layer in the plurality of solder layers uses coated tempered glass, so that the heat transfer coefficient of the vacuum-sealed tempered glass formed by soldering is low. At least one outer solder layer in the plurality of solder layers of the vacuum-sealed tempered glass uses coated tempered glass, so that the heat transfer coefficient of the vacuum-sealed tempered glass formed by soldering is low, which can meet the required heat insulation requirement. For example, the heat transfer coefficient of the vacuum-sealed tempered glass can be lower than 0.8 w / m 2 ·k.

[0131] The first sealing material is sprayed outside the bonding position of the sealing frame 2 and the first glass layer 1 and the second glass layer 4 to form a sealing coating 9, which is arranged at the bonding position between the sealing frame 2 and the solder layer, effectively sealing the gap between the solder layer and the sealing frame 2, and the vacuum sealing effect of the vacuum-sealed tempered glass is good.

[0132] Second embodiment:

[0133] According to the second embodiment of the present application, another kind of vacuum-sealed tempered glass is provided. Please refer to Figure 2 , the vacuum-sealed tempered glass comprises a first glass layer 1, a second glass layer 4 and a sealing frame 2. The first glass layer 1 and the second glass layer 4 are arranged in layers. At least one of the first glass layer 1 and the second glass layer 4 uses coated tempered glass coated with infrared reflective film 20. For example, the first glass layer 1 uses coated tempered glass coated with infrared reflective film 20. For example, the second glass layer 4 uses coated tempered glass coated with infrared reflective film 20. For example, the first glass layer 1 and the second glass layer 4 both use coated tempered glass coated with infrared reflective film 20.

[0134] The sealing frame 2 is in a ring-shaped closed structure. The sealing frame 2 is arranged in bonding between the first glass layer 1 and the second glass layer 4. The sealing frame 2 is arranged around the edge of the first glass layer 1 or the second glass layer 4. The sealing frame 2 can be a glass frame 2 arranged between the first glass layer 1 and the second glass layer 4.

[0135] The sealing frame 2 is welded and fixed with the first glass layer 1 and the second glass layer 4 respectively. The first glass layer 1, the second glass layer 4 and the sealing frame 2 jointly form a vacuum closed space.

[0136] The first sealing material is sprayed or cold-pressed on the outer side of the sealing frame 2 at the bonding position of the sealing frame 2, the first glass layer 1 and the second glass layer 4, thereby forming a sealing coating 9.

[0137] The sealing coating 9 is arranged at the bonding position of the sealing frame 2, the first glass layer 1 and the second glass layer 4, and can effectively block the gap between the sealing frame 2, the first glass layer 1 and the second glass layer 4, thereby improving the sealing effect of the vacuum closed space of the vacuum sealed tempered glass.

[0138] The battery layer 15 is arranged on the inner side surface of the first glass layer 1 or the second glass layer 4.

[0139] Please refer to Figure 2 and Figure 3 The pre-prepared conductor hole 11 is arranged on the first glass layer 1 or the second glass layer 4. The pre-prepared conductor connecting block 14 is arranged in the pre-prepared conductor hole 11. The pre-prepared conductor connecting block 14 is electrically connected with the battery 15.

[0140] The sealing insulator is arranged between the pre-prepared conductor connecting block 14 and the inner wall of the pre-prepared conductor hole 11. More preferably, the sealing insulator is a sintered body 12 formed by filling low-melting-point glass powder or glass paste between the pre-prepared conductor connecting block 14 and the inner wall of the pre-prepared conductor hole 11 and then glass tempering.

[0141] The battery layer 15 can adopt a perovskite solar cell. When the perovskite solar cell 15 is packaged, the pre-prepared conductor hole 11 is added on the outer glass layer, the pre-prepared conductor connecting block 14 is arranged in the pre-prepared conductor hole 11 before glass tempering, and the low-melting-point glass powder or glass paste is added to form the sintered body 12 during glass tempering. The infrared reflection film 20 is arranged on the outer side surface of the first glass layer 1 and / or the second glass layer 4. The infrared reflection film 20 is a metal film or a compound film, which is used for reflecting infrared light back to the battery layer 15.

[0142] The infrared reflection film 20 can reflect infrared light back to the battery layer 15, which not only reflects the infrared light penetrating through the outer glass layer back to the battery layer, thereby improving the light energy utilization rate, but also reduces the heat energy diffusion of the battery outward.

[0143] The battery 15 is packaged in the vacuum closed space of the vacuum sealed tempered glass, thereby avoiding the influence of the hydrolysis and oxidation self-decomposition of the battery layer on the service life of the battery 15.

[0144] The vacuum closed space is filled with protective gas. The protective gas in the vacuum closed space can protect the battery 15 and prolong the service life of the battery 15.

[0145] At least one of the first glass layer 1 and the second glass layer 4 is made of coated tempered glass, so that the heat transfer coefficient of the vacuum sealed tempered glass formed by welding is low. At least one outer welding layer 1, 4 of the plurality of welding layers of the vacuum sealed tempered glass is made of coated tempered glass, so that the heat transfer coefficient of the vacuum sealed tempered glass formed by welding is low, which can meet the required heat insulation requirement. For example, the heat transfer coefficient of the vacuum sealed tempered glass can be lower than 0.8w / m 2 ·k.

[0146] In this embodiment, referring to Figure 2 , the first glass layer 1 and the second glass layer 4 made of coated glass are formed after being tempered and four edges are laser defilmed. The defilming width of the first glass layer 1 and the second glass layer 4 is greater than the edge width of the sealing frame 2, so that the sealing frame 2 and the first glass layer 1 and the second glass layer 4 form a space for accommodating the installation of the prefabricated mask plate. For example, the defilming width of the first glass layer 1 and the second glass layer 4 is 2mm more than the edge width of the sealing frame 2.

[0147] The sealing frame 2 can be an annular closed structure arranged around the edge of the first glass layer 1 or the second glass layer 4. The first glass layer 1 and the second glass layer 4 are also provided with support strips or support blocks 3, which are located on the inner side of the sealing frame 2. A plurality of support strips or support blocks 3 can be uniformly arranged on the inner side of the sealing frame 2. The support strips or support blocks 3 arranged between the first glass layer 1 and the second glass layer 4 can provide support, so as to avoid the first glass layer 1 and the second glass layer 4 from being in close contact after the cavity surrounded by the first glass layer 1, the second glass layer 4 and the sealing frame 2 forms a vacuum layer. For example, the first glass layer 1 and the second glass layer 4 can be arranged in a rectangular structure, and the first glass layer 1 and the second glass layer 4 of the rectangular structure are arranged in a stacked manner; the sealing frame 2 is an annular closed structure arranged around the edge of the rectangular first glass layer 1 or the second glass layer 4, which specifically includes four sealing strips connected in a head-to-tail manner.

[0148] The first sealing material can be an indium-containing alloy. The sealing coating 9 is correspondingly provided as an indium-containing alloy coating. The thickness of the sealing coating 9 can be set to 0.3mm-1mm. For example, the indium-containing alloy can be an indium-containing low-melting-point alloy, and the sealing coating 9 is an indium-containing low-melting-point alloy coating.

[0149] The first sealing material is an indium-containing alloy, which is sprayed on the outer side of the bonding position between the glass frame 2 and the first glass layer 1 and the second glass layer 4 to form a sealing coating 9, so as to seal the outer side of the bonding position between the glass frame 2 and the glass layer. The indium in the indium-containing alloy has ductility and has wettability with glass. The indium-containing alloy sprayed on the outer surface of the glass can form a firm indium-containing alloy coating, and the indium-containing alloy coating has good adhesion strength with the glass, better sealing performance and high sealing reliability.

[0150] The side of the sealing frame 2 can be provided with a prefabricated mask plate. The prefabricated mask plate is arranged close to the side surface of the sealing frame 2. The prefabricated mask plate has a width greater than the thickness of the sealing frame 2, so that the prefabricated mask plate can closely cover the sealing frame 2 and the joint of the sealing frame 2 and the first glass layer 1 and the second glass layer 4. For example, the sealing frame 2 is a ring-shaped closed structure around the edge of the rectangular first glass layer 1 or the second glass layer 4, and the prefabricated mask plate is arranged close to the four sides of the sealing frame 2 to form a four-sided enclosure.

[0151] The indium-containing alloy can be sprayed by low-pressure cold spraying. The indium-containing alloy powder is added to the powder feeder, the spraying gas pressure is set to 0.4-0.6 MP, the nozzle distance from the prefabricated mask plate is 1-3 cm, and the moving speed is 50-100 mm / s. An indium-containing alloy coating with a thickness of 0.3-1 mm is formed at the joint of the glass frame 2 and the first glass layer 1 and the second glass layer 4.

[0152] The first glass layer 1 and / or the second glass layer 4 can be provided with a prefabricated packaging hole 8. The prefabricated packaging hole 8 can be a tapered step hole prefabricated before the first glass layer 1 or the second glass layer 4 is tempered. The prefabricated packaging hole 8 is arranged through the first glass layer 1 or the second glass layer 4, and the outer diameter of the prefabricated packaging hole 8 can be set to 2-3 mm, and the inner diameter of the prefabricated packaging hole 8 can be set to 1 mm.

[0153] After the sealing frame 2 is respectively welded with the first glass layer 1 and the second glass layer 4, and the first sealing material is sprayed or cold-pressed outside the joint of the sealing frame 2 and the adjacent welded layer to form a sealing coating 9, the indium-containing alloy ball can be placed in the prefabricated packaging hole 8 after the prefabricated packaging hole 8 is vacuumized. The indium-containing alloy ball can be extruded to form an indium-containing alloy block in the prefabricated packaging hole 8.

[0154] According to the same inventive concept, the embodiment also provides a vacuum sealed tempered glass manufacturing method. Please refer to Figure 2 and Figure 3 The vacuum sealed tempered glass manufacturing method comprises the following steps:

[0155] Step one:

[0156] A prefabricated packaging hole 8 is formed on the first glass layer 1 or the second glass layer 4 by laser drilling.

[0157] A prefabricated lead hole 11 is formed on the first glass layer 1 or the second glass layer 4 by laser drilling.

[0158] A prefabricated lead connection block 14 is placed in the prefabricated lead hole 11.

[0159] A sealing insulating material is filled in the prefabricated lead hole 11.

[0160] The first glass layer 1 or the second glass layer 4 is tempered, so that the sealing insulating material forms a sintered body 12.

[0161] A battery layer 15 is prepared on the inner side surface of the first glass layer 1 or the second glass layer 4.

[0162] In this step, at least one of the first glass layer 1 and the second glass layer 4 is made of coated tempered glass. After the first glass layer 1 and the second glass layer 4 are tempered, the four edges are formed by laser film removal. For example, the film removal width of the first glass layer 1 and the second glass layer 4 can be the widened sealing frame 2 plus 2 mm. The pre-prepared packaging hole 8 can be a tapered form step hole prepared before the first glass layer 1 or the second glass layer 4 is tempered; the pre-prepared packaging hole 8 is arranged through the first glass layer 1 or the second glass layer 4, and the outer diameter can be set to 2-3 mm, and the inner diameter is 1 mm.

[0163] The battery layer 15 can be a perovskite solar cell. At least one of the first glass layer 1 and the second glass layer 4 can be made of coated tempered glass coated with an infrared reflective film 20. The outer side surface of the first glass layer and / or the second glass layer is coated with an infrared reflective film 20; the infrared reflective film 20 is a metal film or a compound film, which is used to reflect infrared light back to the battery layer 15.

[0164] Step two:

[0165] The first glass layer 1 and the second glass layer 4 are stacked and pressed tightly, and the sealing frame 2 and the support strip or support block 3 inside the sealing frame 2 are arranged between the first glass layer 1 and the second glass layer 4, and the sealing frame 2 is laser welded and fixed with the first glass layer 1 and the second glass layer 4 respectively.

[0166] In this step, the sealing frame 2 can be a glass frame 2 arranged between the first glass layer 1 and the second glass layer 4.

[0167] This step two can specifically include the following subdivided steps:

[0168] The first glass layer 1, the sealing frame 2, the support strip or support block 3, and the second glass layer 4 are sequentially stacked and pressed tightly. For example, the first glass layer 1, the sealing frame 2, the support strip or support block 3, and the second glass layer 4 can be sequentially aligned and pressed by mechanical pressure.

[0169] The sealing frame 2 is laser scanned to form a weld 7 at the interface between the first glass layer 1 and the second glass layer 4. For example, an ultra-short pulse laser can be used to laser scan the interface between the sealing frame 2 and the first glass layer 1 and the second glass layer 4 to form a weld 7, thereby forming a complete glass enclosure structure.

[0170] Step three: The first sealing material is sealed and sprayed or cold-pressed on the outer side of the sealing frame 2 and the adjacent welded layer to form a sealing coating 9, and a vacuum tempered glass is formed.

[0171] This step can specifically include the following detailed steps:

[0172] The prefabricated mask plate is tightly surrounded outside the sealing frame 2.

[0173] The indium-containing alloy powder is added into the powder feeder, the spraying gas pressure is set to 0.4-0.6 MP, the nozzle distance from the prefabricated mask plate is 1-3 cm, and the moving speed is 50-100 mm / s, so as to form a sealing coating 9 with a thickness of 0.3-1 mm.

[0174] Step four:

[0175] The vacuumized tempered glass is placed in the vacuum chamber for vacuumization.

[0176] The protective gas is placed in the vacuum chamber.

[0177] In this step, after the vacuumized tempered glass is placed in the vacuum chamber, the vacuum chamber is vacuumized to 10-1 Pa, and the protective gas is placed in the vacuum chamber, so as to fill the protective gas into the vacuum sealed space of the vacuumized tempered glass.

[0178] Step five: The second sealing material is placed in the prefabricated packaging hole 8, and the second sealing material is extruded to form a packaging block 6.

[0179] This step can specifically include the following detailed steps:

[0180] The indium-containing alloy ball is placed in the prefabricated packaging hole 8.

[0181] The indium-containing alloy ball is extruded and compressed by using a pressure cone to form an indium-containing alloy block. For example, the pressure cone can use a pressure greater than 1 kgf.

[0182] Step six: The vacuum of the vacuum chamber is released, and the vacuum sealed tempered glass packaging the battery 15 is taken out.

[0183] At least one of the first glass layer 1 and the second glass layer 4 uses coated glass, so that the heat transfer coefficient of the vacuum sealed tempered glass welded is low, which can meet the required heat insulation requirement. For example, the heat transfer coefficient of the vacuum sealed tempered glass can be lower than 0.8 w / m 2 ·k.

[0184] The first sealing material is sprayed outside the bonding place of the sealing frame 2 and the first glass layer 1 and the second glass layer 4 to form a sealing coating 9, which is arranged at the bonding place between the sealing frame 2 and the welding layer, can effectively block the gap between the welding layer and the sealing frame 2, and the sealing effect of the vacuum sealed space of the vacuum sealed tempered glass is good.

[0185] The perovskite solar cell 15 can be encapsulated on the inner side surface of the outer glass layer. The outer side surface of the outer glass layer is coated with an infrared reflection film 20; the infrared reflection film 20 is a metal film or a compound film, which is used to reflect infrared light back to the cell layer. The infrared reflection film 20 not only reflects the infrared light that penetrates the outer glass layer back to the cell layer, thereby improving the utilization of light energy, but also reduces the heat energy diffusion of the cell to the outside.

[0186] Third embodiment:

[0187] According to the third embodiment of the present application, another kind of vacuum-sealed tempered glass is provided. Please refer to Figure 4 The vacuum-sealed tempered glass includes an intermediate glass layer 5 and two outer glass layers 1, 4 located on both sides of the intermediate glass layer 5 in the thickness direction, respectively. At least one of the two outer glass layers 1, 4 is a coated tempered glass. For example, the coated tempered glass can be a low-e coated tempered glass (Low emissivity). For example, the coated tempered glass can be a coated tempered glass coated with an infrared reflection film.

[0188] A sealing frame 2 is arranged between the intermediate glass layer 5 and the outer glass layer. The sealing frame 2 is a ring-shaped closed structure. The sealing frame 2 is welded and fixed with the intermediate glass layer 5 and the outer glass layer, respectively. Laser scanning is performed at the bonding interface between the sealing frame 2 and the intermediate glass layer 5 and the outer glass layer to form a weld 7. The intermediate glass layer 5, the outer glass layer, and the sealing frame 2 together enclose a vacuum-sealed space.

[0189] A first sealing material is sprayed on the outside of the bonding interface between the sealing frame 2 and the intermediate glass layer 5 and the outer glass layer to form a sealing coating 9.

[0190] At least one of the two outer glass layers 1, 4 is a coated tempered glass, so that the heat transfer coefficient of the vacuum-sealed tempered glass formed by welding is low, which can meet the required heat insulation requirements. For example, the heat transfer coefficient of the vacuum-sealed tempered glass can be less than 0.8 w / m 2 ·k.

[0191] The sealing coating 9 is arranged at the bonding interface between the sealing frame 2 and the intermediate glass layer 5 and the outer glass layer, which can effectively block the gap between the sealing frame 2 and the intermediate glass layer 5 and the outer glass layer, and the sealing effect of the vacuum-sealed space of the vacuum-sealed tempered glass is good.

[0192] In this embodiment, please refer to Figure 4two outer glass layers include a first outer glass layer 1 and a second outer glass layer 4. A first sealing frame 2A and a first support strip or support block 3A inside the first sealing frame 2A are arranged between the intermediate glass layer 5 and the first outer glass layer 1. The first sealing frame 2A is welded and fixed with the intermediate glass layer 5 and the first outer glass layer 1 respectively. The intermediate glass layer 5, the first outer glass layer 1 and the first sealing frame 2A jointly enclose a vacuum closed space. For example, the intermediate glass layer 5 and the first outer glass layer 1 can be arranged in a rectangular structure, and the intermediate glass layer 5 and the first outer glass layer 1 of the rectangular structure are arranged in a stack; the first sealing frame 2A is a ring-shaped closed structure surrounding the edges of the rectangular intermediate glass layer 5 or the first outer glass layer 1, which specifically includes four sealing strips connected in a head-to-tail manner.

[0193] The first support strip or support block 3A arranged between the intermediate glass layer 5 and the first outer glass layer 1 can provide support, so as to avoid the intermediate glass layer 5 and the first outer glass layer 1 from being in close contact after a vacuum layer is formed in the cavity enclosed by the intermediate glass layer 5, the first outer glass layer 1 and the first sealing frame 2A. For example, a plurality of first support strips or support blocks 3A can be arranged uniformly and at intervals inside the first sealing frame 2A.

[0194] A first sealing material is sprayed outside the joint of the first sealing frame 2A and the intermediate glass layer 5 and the first outer glass layer 1, so as to form a sealing coating 9.

[0195] A second sealing frame 2B and a second support strip or support block 3B inside the second sealing frame 2B are arranged between the intermediate glass layer 5 and the second outer glass layer 4. The second sealing frame 2B is welded and fixed with the intermediate glass layer 5 and the second outer glass layer 4 respectively. The intermediate glass layer 5, the second outer glass layer 4 and the second sealing frame 2B jointly enclose a vacuum closed space. For example, the intermediate glass layer 5 and the second outer glass layer 4 can be arranged in a rectangular structure, and the intermediate glass layer 5 and the second outer glass layer 4 of the rectangular structure are arranged in a stack; the second sealing frame 2B is a ring-shaped closed structure surrounding the edges of the rectangular intermediate glass layer 5 or the first outer glass layer, which specifically includes four sealing strips connected in a head-to-tail manner.

[0196] The second support strip or support block 3B arranged between the intermediate glass layer 5 and the second outer glass layer 4 can provide support, so as to avoid the intermediate glass layer 5 and the second outer glass layer 4 from being in close contact after a vacuum layer is formed in the cavity enclosed by the intermediate glass layer 5, the second outer glass layer 4 and the second sealing frame 2B. For example, a plurality of second support strips or support blocks 3B can be arranged uniformly and at intervals inside the second sealing frame 2B.

[0197] A first sealing material is sprayed outside the joint of the second sealing frame 2 and the intermediate glass layer 5 and the second outer glass layer 4, so as to form a sealing coating 9.

[0198] In this embodiment, please refer to Figure 5The intermediate glass layer 5 and the two sealing frames 2 on both sides of the intermediate glass layer 5 are welded by laser scanning at the interfaces between the intermediate glass layer 5 and the two sealing frames 2, thereby forming an intermediate body.

[0199] Please refer to Figure 4 The two outer glass layers are respectively welded by laser scanning at the interfaces between the two outer glass layers and the two sealing frames 2 of the intermediate body.

[0200] The two outer glass layers are formed by laser film removing on four sides after tempering. The film removing width of the two outer glass layers is greater than the width of the sealing frame 2. The film removing width of the two outer glass layers is greater than the width of the sealing frame 2, so that the sealing frame 2 and the two outer glass layers form a space for accommodating the pre-made mask plate. For example, the film removing width of the two outer glass layers is 2mm wider than the width of the sealing frame 2.

[0201] Pre-made packaging holes 8 are respectively arranged on the two outer glass layers. The pre-made packaging holes 8 can be tapered step holes pre-made before tempering of the two outer glass layers. The pre-made packaging holes 8 respectively pass through the two outer glass layers, and the outer diameter of the pre-made packaging holes 8 can be 2mm-3mm, and the inner diameter of the pre-made packaging holes 8 can be 1mm.

[0202] After the sealing frame 2 is respectively welded with the intermediate glass layer 5 and the outer glass layer, and the sealing coating 9 is formed by spraying, the indium-containing alloy ball can be put into the pre-made packaging hole 8 after the pre-made packaging hole 8 is vacuumized, and the indium-containing alloy ball can be extruded to form an indium-containing alloy block in the pre-made packaging hole 8.

[0203] In this embodiment, please refer to Figure 4 The first sealing material can be an indium-containing alloy. The sealing coating 9 is correspondingly provided as an indium-containing alloy coating. The thickness of the sealing coating 9 can be 0.3mm to 1mm. For example, the indium-containing alloy can be an indium-containing low-melting-point alloy, and the sealing coating 9 is an indium-containing low-melting-point alloy coating.

[0204] The first sealing material is an indium-containing alloy, which is sprayed on the outer side of the interface between the glass frame 2 and the intermediate glass layer 5 and the outer glass layer to form a sealing coating 9, thereby sealing the outer side of the interface between the glass frame 2 and the intermediate glass layer 5 and the outer glass layer. The indium in the indium-containing alloy has ductility and has wettability with glass. The indium-containing alloy sprayed on the outer surface of the glass can form a firm indium-containing alloy coating, and the indium-containing alloy coating has good adhesion strength with the glass, and has good sealing performance and high sealing reliability.

[0205] The side of the sealing frame 2 can be tightly surrounded by a prefabricated mask plate. The width of the prefabricated mask plate is greater than the thickness of the sealing frame 2, so that the prefabricated mask plate can tightly cover the sealing frame 2 and the bonding part between the glass frame 2 and the intermediate glass layer 5 and the outer glass layer. For example, the sealing frame 2 is a ring-shaped closed structure around the edge of the rectangular intermediate glass layer 5 or the outer glass layer, and the prefabricated mask plate is tightly attached to the four sides of the sealing frame 2 to form a four-sided enclosure. For example, the width of the prefabricated mask plate is the thickness of the sealing frame 2 plus 2 mm.

[0206] The indium-containing alloy can be sprayed by low-pressure cold spraying. The indium-containing alloy powder is added to the powder feeder, the spraying gas pressure is set to 0.4 MP-0.6 MP, the nozzle distance from the mask plate is 1 cm-3 cm, and the moving speed is 50 mm / s-100 mm / s. The indium-containing alloy coating with a thickness of 0.3 mm-1 mm is formed at the bonding part between the glass frame 2 and the intermediate glass layer 5 and the outer glass layer.

[0207] According to the same inventive concept, the embodiment also provides a vacuum sealed tempered glass manufacturing method. Please refer to Figure 4 The vacuum sealed tempered glass manufacturing method comprises:

[0208] Step one:

[0209] Laser drilling is performed on the first outer glass layer 1 and the second outer glass layer 4 to form a prefabricated packaging hole 8.

[0210] In this step, at least one of the first outer glass layer 1 and the second outer glass layer 4 uses a coated tempered glass. The prefabricated packaging hole 8 can be a tapered step hole prefabricated before tempering of the first outer glass layer 1 and the second outer glass layer 4, respectively. The outer diameter of the prefabricated packaging hole 8 can be set to 2 mm-3 mm, and the inner diameter is 1 mm.

[0211] The first outer glass layer 1 and the second outer glass layer 4 are formed by laser film removal after tempering of the coated glass. For example, the film removal width of the two outer glass layers is the width of the sealing frame 2 plus 2 mm.

[0212] Step two:

[0213] The plurality of welding layers are stacked and pressed tightly. The sealing frame 2 and the support strip or support block 3 inside the sealing frame 2 are arranged between the two adjacent welding layers. The sealing frame 2 is laser welded and fixed with the two adjacent welding layers, respectively.

[0214] In this step, the plurality of welding layers include the intermediate glass layer 5 and the first and second outer glass layers 1 and 4 respectively located on both sides of the intermediate glass layer 5 in the thickness direction. The first sealing frame 2A and the first support strip or block 3A located inside the first sealing frame 2A are arranged between the intermediate glass layer 5 and the first outer glass layer 1. The second sealing frame 2B and the second support strip or block 3B located inside the second sealing frame 2B are arranged between the intermediate glass layer 5 and the second outer glass layer 4. The first and second sealing frames 2A and 2B can be glass frames.

[0215] This step two can include the following sub-steps:

[0216] Please refer to Figure 5 The first sealing frame 2A, the intermediate glass layer 5, and the second sealing frame 2B are sequentially stacked and tightly bonded.

[0217] Laser scanning is performed on the bonding interface between the intermediate glass layer 5 and the first and second sealing frames 2A and 2B to form a weld 7, thereby forming an intermediate body.

[0218] Please refer to Figure 4 The first outer glass layer 1, the first support strip or block 3A, the intermediate body, the second support strip or block 3B, and the second outer glass layer 4 are sequentially stacked and tightly bonded.

[0219] Laser scanning is performed on the bonding interface between the first outer glass layer 1 and the first sealing frame 2A of the intermediate body, and on the bonding interface between the second outer glass layer 4 and the second sealing frame 2B of the intermediate body to form a weld.

[0220] Step three: The first sealing material is sprayed on the outside of the sealing frame 2 and the adjacent welding layer bonding interface to form a sealing coating 9, thereby forming a vacuumized tempered glass.

[0221] This step can include the following detailed steps:

[0222] The prefabricated mask plate is tightly wrapped around the outside of the sealing frame 2.

[0223] The indium-containing alloy powder is added to the powder feeder, the spraying gas pressure is set to 0.4-0.6 MP, the nozzle distance from the mask plate is 1-3 cm, and the moving speed is 50-100 mm / s, thereby forming a sealing coating 9 with a thickness of 0.3-1 mm.

[0224] Step four: The vacuumized tempered glass is placed in a vacuum chamber for vacuumization.

[0225] In this step, the vacuum chamber can be vacuumized to 10 -1 Pa.

[0226] Step five: Put the second sealing material into the pre-prepared sealing hole 8, and extrude the second sealing material to form the sealing block 6.

[0227] This step can specifically include the following detailed steps:

[0228] Put the indium-containing alloy ball into the pre-prepared sealing hole 8.

[0229] Extrude and compact the indium-containing alloy ball by using a pressure cone to form an indium-containing alloy sealing block. For example, the pressure cone can use a pressure greater than 1 kgf.

[0230] Step six: Release the vacuum of the vacuum chamber, and take out the sealed vacuum toughened glass.

[0231] At least one of the first outer glass layer 1 and the second outer glass layer 4 uses coated toughened glass, so that the heat transfer coefficient of the welded vacuum toughened glass is low, which can meet the required heat insulation requirement. For example, the heat transfer coefficient of the vacuum toughened glass can be less than 0.8 w / m 2 ·k.

[0232] The sealing coating 9 is arranged at the abutting position between the sealing frame 2 and the intermediate glass layer 5 and the outer glass layer, which can effectively block the gap between the sealing frame 2 and the intermediate glass layer 5 and the outer glass layer, and the sealing effect of the vacuum closed space of the vacuum toughened glass is good.

[0233] In the present application, at least one outer welding layer of the plurality of welding layers of the vacuum toughened glass uses coated toughened glass, so that the heat transfer coefficient of the welded vacuum toughened glass is low, which can meet the required heat insulation requirement.

[0234] The sealing frame is arranged between the adjacent two welding layers, and the sealing frame is welded and fixed with the adjacent two welding layers, and the adjacent two welding layers and the sealing frame jointly enclose the vacuum closed space. The first sealing material is sprayed or cold-pressed on the outer side of the abutting position between the sealing frame and the adjacent welding layer to form a sealing coating, and the sealing coating is arranged at the abutting position between the sealing frame and the welding layer, which can effectively block the gap between the welding layer and the sealing frame, and the sealing effect of the vacuum closed space of the vacuum toughened glass is good.

[0235] The welding layer and the sealing frame can be made of glass material, and the first sealing material can be made of indium-containing alloy. The indium-containing alloy is sprayed or cold-pressed on the outer side of the abutting position between the glass frame and the adjacent glass layer to form a sealing coating. The metallic indium in the indium-containing alloy has ductility and has wettability with glass. The indium-containing alloy sprayed or cold-pressed on the outer surface of the glass can form a firm indium-containing alloy coating, and the indium-containing alloy coating has good adhesion strength with the glass, and the sealing performance is better and reliable.

[0236] One of the plurality of welding layers can be provided with a prefabricated packaging hole; after the sealing frame is welded with the adjacent two welding layers respectively and the sealing coating is formed by spraying, the second sealing material is put into the prefabricated packaging hole to form a sealing block, so that the packaging of the vacuum sealing tempered glass is facilitated, the sealing performance is better, and the sealing is reliable and high.

[0237] The battery layer can be packaged in the vacuum closed space of the vacuum sealing tempered glass, so that the hydrolysis and oxidation self-decomposition of the battery absorption layer is avoided to affect the service life of the battery. The vacuum closed space can be filled with protective gas, and the protective gas in the vacuum closed space can protect the battery and prolong the service life of the battery.

[0238] The battery layer can be a perovskite solar cell arranged on the inner surface of the outer glass layer. When the perovskite solar cell is packaged, a reserved lead hole is formed on the outer glass layer, a reserved lead connecting block is put into the reserved lead hole before the glass is tempered, and low-melting-point glass powder or glass paste is added to form a sintered body during the glass tempering. The outer surface of the outer glass layer is coated with an infrared reflective film. The infrared reflective film can be a metal film or a compound film, which can reflect infrared light back to the battery layer, not only reflecting the infrared light that has passed through the outer glass layer back to the battery layer to improve the utilization rate of light energy, but also reducing the heat energy diffusion of the battery to the outside.

[0239] The above is only the preferred embodiment of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement or improvement within the spirit of the present application is covered within the scope of the claims of the present application.

Claims

1. A vacuum-sealed tempered glass battery packaging structure using ultra-short pulse laser welding, characterized by, The vacuum sealed tempered glass battery packaging structure comprises: a plurality of welding layers, the plurality of welding layers are arranged in layers, at least one outer welding layer in the plurality of welding layers is made of coated tempered glass, the plurality of welding layers comprise a first glass layer and a second glass layer, a pre-prepared conductor hole is arranged through the first glass layer or the second glass layer, a battery layer is arranged on the inner side surface of the first glass layer or the second glass layer, a pre-prepared conductor connecting block is placed in the pre-prepared conductor hole, the pre-prepared conductor connecting block is electrically connected with the battery layer, and a sealing insulator is arranged between the pre-prepared conductor connecting block and the inner wall of the pre-prepared conductor hole; and a sealing frame, the sealing frame is arranged between adjacent two welding layers, the sealing frame is fixed by ultrashort pulse laser welding with the adjacent two welding layers respectively, a vacuum sealed space is formed by the sealing frame and the adjacent two welding layers, the sealing frame is a glass frame arranged between the first glass layer and the second glass layer, a welding seam is formed by scanning the sealing frame and the first glass layer and the second glass layer by using ultrashort pulse laser, and the vacuum sealed space is filled with protective gas; a first sealing material is sprayed or cold-pressed on the outer side of the sealing frame and the adjacent welding layer to form a sealing coating.

2. The vacuum sealed tempered glass battery packaging structure according to claim 1, wherein: the welding layer is a glass layer, the sealing frame is a glass frame, the first sealing material is an indium-containing alloy, the sealing coating is an indium-containing alloy coating, and the thickness of the sealing coating is 0.3mm to 1mm; and / or at least one outer welding layer in the plurality of welding layers is provided with a pre-prepared packaging hole; the pre-prepared packaging hole is configured to be capable of forming a sealing block by being placed into a second sealing material after the sealing frame and the adjacent two welding layers are fixed by welding and the sealing coating is formed by spraying or cold-pressing, the second sealing material is an indium-containing alloy, and the sealing block is an indium-containing alloy sealing block; and / or the sealing frame is a ring-shaped closed structure arranged around the welding layer edge; a support strip or a support block is arranged between adjacent two welding layers, and the support strip or the support block is arranged uniformly and at intervals on the inner side of the sealing frame.

3. The vacuum sealed tempered glass battery packaging structure according to claim 1, wherein: at least one of the first glass layer and the second glass layer is made of coated tempered glass.

4. The vacuum sealed tempered glass battery packaging structure according to claim 3, wherein: the first glass layer and the second glass layer are formed by laser film removing on four edges after being tempered by coated glass, the film removing width of the first glass layer and the second glass layer is greater than the edge width of the sealing frame; and / or the first glass layer and / or the second glass layer is provided with a pre-prepared packaging hole; the pre-prepared packaging hole is configured to be capable of being placed into an indium-containing alloy ball and extruded to form an indium-containing alloy sealing block after being vacuumized after the sealing frame and the first glass layer and the second glass layer are welded and the sealing coating is formed by spraying. ​ 5. The vacuum-sealed tempered glass battery packaging structure according to claim 3, wherein: the sealing insulation is a sintered body formed by low-melting-point glass powder or glass paste filled between the pre-prepared lead connection block and the inner wall of the pre-prepared lead hole after glass tempering; and / or, the battery layer adopts a perovskite solar cell; and an infrared reflective film is arranged on the outer surface of the first glass layer and / or the second glass layer, the infrared reflective film being a metal film or a compound film for reflecting infrared light back to the battery layer.

6. The vacuum-sealed tempered glass battery packaging structure according to claim 1, wherein: the plurality of welding layers include an intermediate glass layer and two outer glass layers respectively arranged on both sides of the intermediate glass layer in the thickness direction; at least one of the two outer glass layers is a coated tempered glass; the sealing frame is arranged between the intermediate glass layer and the outer glass layer; and a weld is formed at the bonding interface between the sealing frame and the intermediate glass layer and the outer glass layer by using an ultra-short pulse laser.

7. The vacuum-sealed tempered glass battery packaging structure according to claim 6, wherein: a weld is formed at the bonding interface between the intermediate glass layer and the two sealing frames on both sides of the intermediate glass layer in the thickness direction by using an ultra-short pulse laser to form an intermediate body; a weld is formed at the bonding interface between the two outer glass layers and the two sealing frames of the intermediate body by using an ultra-short pulse laser; and / or, the two outer glass layers are formed by laser film removal on four sides after coated glass tempering, and the film removal width of the two outer glass layers is greater than the edge width of the sealing frame; and / or, a pre-prepared packaging hole is arranged on each of the two outer glass layers, and the pre-prepared packaging hole is configured to be filled with indium-containing alloy balls and extruded to form an indium-containing alloy block after the sealing frame is welded with the first glass layer and the second glass layer and the sealing coating is sprayed and formed, and vacuumization. including: laser drilling a pre-prepared packaging hole on at least one outer welding layer of the plurality of welding layers, the at least one outer welding layer being a coated tempered glass; the plurality of welding layers including a first glass layer and a second glass layer, and the pre-prepared packaging hole being formed by laser drilling on the first glass layer or the second glass layer, laser drilling a pre-prepared lead hole on the first glass layer or the second glass layer, placing a pre-prepared lead connection block in the pre-prepared lead hole, filling a sealing insulation material in the pre-prepared lead hole, and tempering the first glass layer or the second glass layer to form a sintered body of the sealing insulation material, stacking and pressing the plurality of welding layers, and arranging a sealing frame and a support strip or a support block inside the sealing frame between adjacent two welding layers, and welding and fixing the sealing frame with the adjacent two welding layers by using an ultra-short pulse laser, the sealing frame being a glass frame arranged between the first glass layer and the second glass layer. ​ ​ ​ ​ ​ ​ 8. A method of making a vacuum-sealed, tempered glass battery packaging structure, comprising: ​ ​ ​ ​ sealing the first sealing material on the outer side of the sealing frame and the adjacent welding layer to form a sealing coating, and shaping the vacuumized tempered glass; putting the vacuumized tempered glass into a vacuum chamber to be vacuumized, and then putting a protective gas into the vacuum chamber; putting the second sealing material into the pre-prepared packaging hole, and extruding the second sealing material to form a packaging block after vacuumizing.

9. The method of claim 8, wherein: at least one of the first glass layer and the second glass layer is tempered film-coated glass, and the four edges of the tempered film-coated glass are laser-decoated to form the shape. The pre-prepared packaging hole penetrates through the first glass layer or the second glass layer. The multiple welding layers are stacked and pressed to be tightly attached, and a sealing frame and a support bar or a support block inside the sealing frame are attached between two adjacent welding layers. The sealing frame is welded and fixed between the first glass layer and the second glass layer by using ultra-short pulse laser.

10. The method of claim 8, wherein: at least one of the first glass layer and the second glass layer is tempered film-coated glass. A battery layer is prepared on the inner surface of the first glass layer or the second glass layer.

11. The method of claim 10, wherein: the battery layer is a perovskite solar cell. An infrared reflective film is provided on the outer surface of the first glass layer and / or the second glass layer, and the infrared reflective film is a metal film or a compound film for reflecting infrared light back to the battery layer.

12. The method of claim 8, wherein: the multiple welding layers include an intermediate glass layer, a first outer glass layer and a second outer glass layer located on both sides of the intermediate glass layer in the thickness direction; at least one of the first outer glass layer and the second outer glass layer is tempered film-coated glass; a first sealing frame and a first support bar or a support block inside the first sealing frame are provided between the intermediate glass layer and the first outer glass layer; a second sealing frame and a second support bar or a support block inside the second sealing frame are provided between the intermediate glass layer and the second outer glass layer; the first outer glass layer and the second outer glass layer are respectively laser-perforated to form the pre-prepared packaging hole; at least one of the first outer glass layer and the second outer glass layer is tempered film-coated glass, and the four edges of the tempered film-coated glass are laser-decoated to form the shape. ​ ​ ​ ​ ​ ​ ​ The multiple welding layers are stacked and pressed tightly, a sealing frame and a support strip or a support block inside the sealing frame are arranged between two adjacent welding layers, the sealing frame is fixed by using ultra-short pulse laser welding with the two adjacent welding layers, and the method comprises the following steps: The first sealing frame, the intermediate glass layer and the second sealing frame are sequentially stacked and pressed tightly; An intermediate body is formed by using ultra-short pulse laser to scan and form a welding seam at the interface between the intermediate glass layer and the first sealing frame and the second sealing frame; The first outer glass layer, the first support strip or support block, the intermediate body, the second support strip or support block and the second outer glass layer are sequentially stacked and pressed tightly; Ultra-short pulse laser is used to scan and form a welding seam at the interface between the first outer glass layer and the first sealing frame and the interface between the second outer glass layer and the second sealing frame.

13. The manufacturing method of the vacuum sealed tempered glass battery packaging structure according to claim 8, wherein: The second sealing material is placed in the pre-prepared packaging hole, and after vacuumizing, the second sealing material is extruded to form a packaging block, and the method comprises the following steps: The indium-containing alloy ball is placed in the pre-prepared packaging hole; The indium-containing alloy ball is extruded and pressed tightly by using a pressure cone to form an indium-containing alloy block.

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