CN116444180A

CN116444180A - Vacuum sealing toughened glass and manufacturing method thereof

Info

Publication number: CN116444180A
Application number: CN202310347859.9A
Authority: CN
Inventors: 崔玉柱; 崔晓晓; 闫锋; 刘静
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-07-18

Abstract

The invention provides vacuum sealing toughened glass and a manufacturing method thereof. The vacuum sealing tempered glass comprises: the welding layers are arranged in a stacked mode, and at least one outer side welding layer of the welding layers is coated toughened glass; the sealing frames are arranged between two adjacent welding layers in a laminating mode; the sealing frames are welded and fixed with two adjacent welding layers respectively, and form a vacuum enclosed space together; and spraying or cold pressing a first sealing material on the outer side of the joint of the sealing frame and the adjacent welding layer so as to form a sealing coating.

Description

Vacuum sealing toughened glass and manufacturing method thereof

Technical Field

The invention relates to vacuum sealing toughened glass and a manufacturing method thereof.

Background

Along with the improvement of the energy-saving and emission-reducing requirements, the heat insulation requirements on the vacuum sealing toughened glass are also improved. Therefore, a new vacuum sealing toughened glass and a low-temperature processing technology of the vacuum toughened glass are needed to meet the heat insulation requirement of the vacuum sealing toughened glass.

In addition, the power generation efficiency of the perovskite solar cell is improved rapidly from laboratory to factory in small scale, but the service life of the cell is influenced by hydrolysis, oxidation and self-decomposition of the absorption layer of the perovskite solar cell, and a new vacuum-sealed tempered glass and a low-temperature processing technology of the vacuum tempered glass are also required, so that the perovskite solar cell can be packaged in the vacuum tempered glass sealing cavity and then the protective gas is filled after the vacuum tempered glass forms the vacuum sealing cavity so as to prolong the service life of the cell.

In order to solve the technical problems, a new vacuum sealing toughened glass and a manufacturing method thereof are needed.

Disclosure of Invention

The invention aims to overcome at least one defect in the prior art and provides vacuum sealing toughened glass and a manufacturing method thereof.

In order to achieve the above purpose, the present invention is realized by the following technical scheme:

according to a first aspect of the present invention, there is provided a vacuum-sealed tempered glass. The vacuum sealing tempered glass comprises:

the welding layers are arranged in a stacked mode, and at least one outer side welding layer of the welding layers is coated toughened glass; a kind of electronic device with high-pressure air-conditioning system

The sealing frames are arranged between two adjacent welding layers in a laminating mode; the sealing frames are welded and fixed with two adjacent welding layers respectively, and form a vacuum enclosed space together;

and spraying or cold pressing a first sealing material on the outer side of the joint of the sealing frame and the adjacent welding layer so as to form a sealing coating.

Optionally, the welding layer is a glass layer, the sealing frame is a glass frame, the first sealing material adopts 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 the number of the groups of groups,

At least one outer side welding layer of the welding layers is provided with a prefabricated packaging hole; the prefabricated packaging holes are configured to be welded and fixed with two adjacent welding layers respectively at the sealing frame, the sealing coating is sprayed or cold-pressed, and a second sealing material is placed after vacuumizing to form a sealing block; the second sealing material adopts indium-containing alloy, and the sealing block is an indium-containing alloy sealing block; and/or the number of the groups of groups,

the sealing frame is an annular closed structure arranged around the edge of the welding layer; a supporting bar or a supporting block is arranged between two adjacent welding layers, and the supporting bars or the supporting blocks are positioned at the inner side of the sealing frame at equal intervals.

Optionally, the plurality of solder layers includes a first glass layer and a second glass layer;

at least one of the first glass layer and the second glass layer adopts coated toughened glass;

the sealing frame is a glass frame arranged between the first glass layer and the second glass layer, and a welding seam is formed at the joint interface between the sealing frame and the first glass layer and between the sealing frame and the second glass layer through laser scanning.

Optionally, the first glass layer and the second glass layer are formed by four sides of the toughened coated glass through laser film removal, and the film removal width of the first glass layer and the second glass layer is larger than the edge width of the sealing frame; and/or the number of the groups of groups,

The first glass layer and/or the second glass layer are/is provided with prefabricated packaging holes; the prefabricated packaging holes are configured to be welded with the first glass layer and the second glass layer respectively at the sealing frame, the sealing coating is formed by spraying, and after vacuumizing, the sealing coating can be placed into an indium-containing alloy ball and extruded to form an indium-containing alloy sealing block.

Optionally, a battery layer is disposed on an inside surface of the first glass layer or the second glass layer;

a prefabricated wire guide is arranged on the first glass layer or the second glass layer in a penetrating way;

a prefabricated wire connecting block is arranged in the prefabricated wire hole and is electrically connected with the battery layer;

a sealing insulator is arranged between the prefabricated wire connecting block and the inner wall of the prefabricated wire hole.

Optionally, the vacuum enclosed space is filled with a protective gas; and/or the number of the groups of groups,

the sealing insulator is a sintered body formed by glass tempering of low-melting-point glass powder or glass paste filled between the prefabricated wire connecting block and the inner wall of the prefabricated wire hole; and/or the number of the groups of groups,

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

Optionally, the plurality of welding layers comprise an intermediate glass layer and two outer glass layers respectively positioned at two sides of the intermediate glass layer in the thickness direction of the intermediate glass layer;

at least one of the two outer glass layers adopts coated toughened glass;

the sealing frames are arranged between the middle glass layer and the outer glass layer;

and laser scanning is performed at the joint interface between the sealing frame and the middle glass layer and between the sealing frame and the outer glass layer to form a welding line.

Optionally, laser scanning is performed at the joint interface between the middle glass layer and the two sealing frames at the two sides of the thickness direction of the middle glass layer to form a welding line so as to form an intermediate; the joint interfaces of the two outer glass layers and the two sealing frames of the intermediate body are respectively scanned by laser to form welding seams; and/or the number of the groups of groups,

four edges of the two outer glass layers are subjected to laser film removal forming after being toughened by coated glass, and the film removal width of the two outer glass layers is larger than the edge width of the sealing frame; and/or the number of the groups of groups,

the two outer glass layers are respectively provided with prefabricated packaging holes; the prefabricated packaging holes are configured to be welded with the first glass layer and the second glass layer respectively at the sealing frame, the sealing coating is formed by spraying, and after vacuumizing, the sealing coating can be placed into an indium-containing alloy ball and extruded to form an indium-containing alloy sealing block.

According to a second aspect of the present invention, there is provided a method of manufacturing vacuum sealed tempered glass. The manufacturing method of the vacuum sealing toughened glass comprises the following steps:

forming a prefabricated packaging hole on at least one outer welding layer in a plurality of welding layers by laser drilling, wherein the at least one outer welding layer in the plurality of welding layers adopts coated toughened glass;

laminating, pressing and attaching a plurality of welding layers, attaching a sealing frame and a supporting bar or a supporting block positioned on the inner side of the sealing frame between two adjacent welding layers, and respectively welding and fixing the sealing frame and the two adjacent welding layers by laser;

sealing and spraying or cold pressing a first sealing material on the outer side of the joint of the sealing frame and the adjacent welding layer so as to form a sealing coating, and forming toughened glass to be vacuumized;

placing tempered glass to be vacuumized into a vacuum chamber for vacuumizing;

and placing a second sealing material in the prefabricated packaging hole, and extruding the second sealing material after vacuumizing to form a packaging block.

at least one layer of the first glass layer and the second glass layer is formed by four-side laser film removal after film coating glass tempering;

The sealing frame is a glass frame arranged between the first glass layer and the second glass layer;

the prefabricated packaging hole penetrates through the first glass layer or the second glass layer;

the welding device comprises a welding layer, a plurality of welding layers, a sealing frame, a support bar or a support block, a plurality of welding layers, a sealing frame and a support bar or a support block, wherein the welding layers are laminated and laminated, the welding layers are pressed and laminated, the sealing frame and the support bar or the support block are arranged between two adjacent welding layers in a laminated mode, the sealing frame is fixed with the two adjacent welding layers through laser welding, and the welding device comprises:

sequentially laminating the first glass layer, the sealing frame, the supporting strips or the supporting blocks and the second glass layer, and compacting and attaching;

and scanning laser at the joint interface between the sealing frame and the first glass layer and between the sealing frame and the second glass layer respectively to form welding seams.

Optionally, the plurality of welding layers include a first glass layer and a second glass layer, and at least one glass layer of the first glass layer and the second glass layer adopts coated toughened glass;

the laser drilling on at least one outer welding layer of the welding layers to form a prefabricated packaging hole comprises the following steps:

forming a prefabricated packaging hole on the first glass layer or the second glass layer by laser drilling;

Laser drilling a prefabricated wire guide on the first glass layer or the second glass layer;

placing a preformed wire connection block into the preformed wire guide;

filling sealing insulating materials into the prefabricated wire guide holes;

tempering the first glass layer or the second glass layer to form a sintered body of the sealing insulating material;

preparing a battery layer on an inner side surface of the first glass layer or the second glass layer;

placing the toughened glass to be vacuumized into a vacuum chamber for vacuumization, and then further comprising:

a shielding gas is placed into the vacuum chamber.

Optionally, the cell layer adopts a perovskite solar cell;

an infrared reflecting film is arranged on the outer side surface of the first glass layer and/or the second glass layer; the infrared reflection film is a metal film or a compound film and is used for reflecting infrared light back to the battery layer.

Optionally, the plurality of welding layers comprise an intermediate glass layer, and a first outer glass layer and a second outer glass layer respectively positioned at two sides of the intermediate glass layer in the thickness direction of the intermediate glass layer; at least one outer glass layer of the first outer glass layer and the second outer glass layer is coated toughened glass; the first sealing frame and a first supporting bar or supporting block positioned at the inner side of the first sealing frame are arranged between the middle glass layer and the first outer glass layer; a second sealing frame and a second supporting bar or supporting block positioned at the inner side of the second sealing frame are arranged between the middle glass layer and the second outer glass layer;

Forming the prefabricated packaging holes on the first outer glass layer and the second outer glass layer by means of laser drilling respectively;

at least one outer glass layer of the first outer glass layer and the second outer glass layer is formed by four sides of toughened coated glass through laser film removal;

sequentially stacking the first sealing frame, the middle glass layer and the second sealing frame, and compacting and attaching;

laser scanning is carried out on the joint interface between the middle glass layer and the first sealing frame and between the middle glass layer and the second sealing frame to form welding seams, so that an intermediate is formed;

the first outer glass layer, the first supporting bar or supporting block, the intermediate body, the second supporting bar or supporting block and the second outer glass layer are sequentially laminated and pressed and attached;

and scanning the joint interface of the first outer glass layer and the first sealing frame of the intermediate and the joint interface of the second outer glass layer and the second sealing frame of the intermediate by laser to form a welding line.

Optionally, the placing the second sealing material in the prefabricated packaging hole and extruding the second sealing material to form a packaging block after vacuumizing includes:

placing the indium-containing alloy balls into the prefabricated packaging holes;

and extruding and compacting the indium-containing alloy balls by adopting a pressure cone to form the indium-containing alloy sealing block.

In the vacuum sealing toughened glass and the manufacturing method thereof, at least one outer welding layer of the plurality of welding layers of the vacuum sealing toughened glass adopts the coated toughened glass, so that the heat transfer coefficient of the welded vacuum sealing toughened glass is lower, and the heat insulation requirement of the requirement can be met.

And sealing frames are respectively and fixedly welded with the two adjacent welding layers, and the two adjacent welding layers and the sealing frames jointly enclose a vacuum closed space. And the sealing coating is formed by spraying or cold pressing a first sealing material on the outer side of the joint of the sealing frame and the adjacent welding layer, and is arranged at the joint between the sealing frame and the welding layer, so that the gap between the welding layer and the sealing frame can be effectively blocked, and the sealing effect of the vacuum sealing space of the vacuum sealing toughened glass is good.

The welding layer and the sealing frame can be made of glass materials, the first sealing material can be made of indium-containing alloy, and the sealing coating is formed by spraying or cold pressing the indium-containing alloy on the outer side of the joint of the glass frame and the adjacent glass layer. The indium alloy has ductility and wettability with glass, and can form a firm indium alloy coating on the outer surface of the glass by spraying or cold pressing, and the indium alloy coating has good adhesive strength with the glass, good sealing performance and high sealing reliability.

A prefabricated packaging hole can be formed in one outer welding layer of the welding layers; after the sealing frame is welded with two adjacent welding layers respectively and the sealing coating is formed by spraying, the second sealing material is placed into the prefabricated packaging hole to form a sealing block, so that the packaging of the vacuum sealing toughened glass is convenient to realize, the sealing performance is better, and the sealing reliability is high.

The battery layer can be packaged in a vacuum closed space of vacuum sealing toughened glass, so that the influence of hydrolysis, oxidation and self-decomposition of the battery absorption layer on the service life of the battery is avoided. The vacuum enclosed space can be filled with protective gas, and the protective gas in the vacuum enclosed space can protect the battery and prolong the service life of the battery.

The cell layer may employ a perovskite solar cell disposed on the inside surface of the outer glass layer. When the perovskite solar cell is packaged, a reserved wire hole is added on the outer glass layer, a reserved wire connecting block is placed into the reserved wire hole before glass tempering, and low-melting-point glass powder or glass paste is added so as to form a sintered body during glass tempering, and an infrared reflection film is coated on the outer side surface of the outer glass layer. The infrared reflecting film can adopt a metal film or a compound film, and can reflect infrared light back to the battery layer, so that the infrared light transmitted through the outer glass layer can be reflected back to the battery layer, the light energy utilization rate is improved, and the outward heat energy diffusion of the battery can be reduced.

Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of vacuum sealed tempered glass according to a first embodiment of the present invention.

Fig. 2 is a schematic structural view of vacuum sealed tempered glass according to a second embodiment of the present invention.

Fig. 3 is a cross-sectional view of the first glass layer of fig. 2 taken along the B-B direction.

Fig. 4 is a schematic structural view of a vacuum sealed tempered glass according to a third embodiment of the present invention.

Fig. 5 is a schematic structural view of an intermediate in the vacuum-sealed tempered glass of fig. 4.

Detailed Description

The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

First embodiment:

according to a first embodiment of the present invention, there is provided vacuum-sealed tempered glass. Referring to fig. 1, the vacuum sealed tempered glass includes a plurality of welded layers and a sealed frame 2. The plurality of solder layers are stacked. Two outer side welding layers 1 and 4 are respectively arranged on two outer side sides of the plurality of welding layers. At least one outer welding layer of the plurality of welding layers adopts coated toughened glass. For example, low-e coated toughened glass (Lowemissivity) may be used. For example, the coated tempered glass may be coated tempered glass coated with an infrared reflective film.

Sealing frames 2 are arranged between two adjacent welding layers in a laminating mode, and each sealing frame 2 is welded and fixed with the two adjacent welding layers respectively. The two adjacent welding layers and the sealing frame 2 jointly enclose a vacuum enclosed space.

And spraying or cold pressing a first sealing material on the outer side of the joint of the sealing frame 2 and the adjacent welding layer, thereby forming a sealing coating 9.

At least one outer side of the plurality of welded layers of the vacuum-tight tempered glass in the present embodimentThe side welding layer adopts the coated toughened glass, and the heat transfer coefficient of the coated toughened glass is low, so that the heat transfer coefficient of the welded vacuum sealing toughened glass is low, and the heat insulation requirement of the requirement can be met. For example, the heat transfer coefficient of the vacuum sealed tempered glass may be lower than 0.8w/m ² ·k。

The sealing coating 9 is arranged at the joint between the sealing frame 2 and the welding layer, so that the gap between the welding layer and the sealing frame 2 can be effectively blocked, and the sealing effect of the vacuum sealing toughened glass vacuum sealing space is good.

In an alternative example, referring to fig. 1, the sealing rim 2 may be an annular closed structure disposed around the edge of the weld layer. A supporting bar or supporting block 3 is further arranged between every two adjacent welding layers, and the supporting bar or supporting block 3 is positioned on the inner side of the sealing frame 2. A plurality of support bars or blocks 3 may be uniformly spaced inside the sealing rim 2. The support bar or the support block 3 is arranged between the two adjacent welding layers to provide support, so that the two adjacent welding layers are prevented from being in fit contact after forming a vacuum layer in the cavity formed by the two adjacent welding layers and the sealing frame 2. For example, the weld layer may be provided in a rectangular structure, with a plurality of weld layers of rectangular structure being stacked; the sealing frame 2 is an annular closed structure surrounding the edge of the rectangular welding layer, and specifically comprises four sealing strips connected end to end.

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

The first sealing material adopts indium-containing alloy, and the indium-containing alloy is sprayed on the outer side of the joint of the glass frame 2 and the adjacent glass layer to form a sealing coating 9, so that the outer side of the joint of the glass frame 2 and the glass layer can be sealed. The indium alloy has ductility and wettability with glass, and can form a firm indium alloy coating after being sprayed on the outer surface of the glass, and the indium alloy coating has good adhesion strength with the glass, good sealing performance and high sealing reliability.

The side of the sealing rim 2 may be provided with a prefabricated mask. The prefabricated mask plate is closely attached to the side surface of the sealing frame 2. The width of the prefabricated mask plate is larger than the thickness of the sealing frame 2, so that the prefabricated mask plate can be tightly attached to and cover the sealing frame 2 and the joint of the sealing frame 2 and the welding layer. For example, the sealing frame 2 is an annular closed structure surrounding the edge of the rectangular welding layer, and the prefabricated mask plate is tightly attached to four side sides of the sealing frame 2 to form four-side enclosure.

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

At least one of the outer solder layers of the plurality of solder layers may be provided with a pre-fabricated package hole 8. The outer welding layer adopts coated toughened glass. The prefabricated packaging hole 8 can be a conical step hole prefabricated before the outer welding layer is toughened; the prefabricated packaging holes 8 are arranged through the outer side welding layer, the outer side aperture of the prefabricated packaging holes can be set to be 2mm-3mm, and the inner side aperture of the prefabricated packaging holes is 1mm.

And the sealing frame 2 is welded with two adjacent welding layers respectively, and is sprayed or cold-pressed to form a sealing coating 9, and a 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 can be formed.

The second sealing material may be an indium-containing alloy. The sealing block 6 is correspondingly an indium-containing alloy sealing block. For example, the second sealing material may be an indium-containing low melting point alloy, and the sealing block 6 is an indium-containing low melting point alloy coating.

A plurality of welded layer structures may be provided as desired.

In this embodiment, referring to fig. 1, the plurality of solder layers includes 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 coated toughened glass. The sealing frame 2 is a glass frame 2 arranged between a first glass layer 1 and a second glass layer 4. And the joint interface between the sealing frame 2 and the first glass layer 1 and the second glass layer 4 is scanned by laser to form a welding line 7. And spraying a first sealing material on the outer side of the joint of the sealing frame 2 and the first glass layer 1 and the second glass layer 4, so as to form a sealing coating 9.

At least one of the first glass layer 1 and the second glass layer 4 can be coated with toughened glass, so that the heat transfer coefficient of the welded vacuum seal toughened glass is low, and the heat insulation requirement can be met. For example, the heat transfer coefficient of the vacuum sealed tempered glass may be lower than 0.8w/m ² ·k。

And the first sealing material is sprayed on the outer side of the joint of the sealing frame 2 and the first glass layer 1 and the second glass layer 4 to form a sealing coating 9, and the sealing coating 9 is arranged at the joint between the sealing frame 2 and the welding layer, so that a gap between the welding layer and the sealing frame 2 can be effectively blocked, and the sealing and heat insulation effects of a vacuum sealing closed space of the vacuum sealing toughened glass are better.

Four sides of the toughened glass are subjected to laser film removal molding after the first glass layer 1 and/or the second glass layer 4 of the coated toughened glass are toughened. The film removing width of the first glass layer 1 and the second glass layer 4 is larger than the edge width of the sealing frame 2, so that a space for accommodating and installing the prefabricated mask plate is formed between the sealing frame 2 and the first glass layer 1 and the second glass layer 4. For example, the film removal width of the first glass layer 1 and the second glass layer 4 is a width of the seal frame 2 widening by 2mm.

The side of the sealing frame 2 can be clung to the enclosure and is provided with a prefabricated mask plate, and the width of the prefabricated mask plate is larger than the thickness of the sealing frame 2, so that the prefabricated mask plate can be clung to and cover the glass frame 2 and the joint between the glass frame 2 and the first glass layer 1 and the joint between the glass frame 2 and the first glass layer. For example, the width of the prefabricated mask plate is 2mm greater than the thickness of the sealing frame 2.

The first glass layer 1 and/or the second glass layer 4 may be provided with pre-fabricated package holes 8. The prefabricated packaging hole 8 can be a conical stepped hole prefabricated before the first glass layer 1 or the second glass layer 4 is toughened; the prefabricated packaging hole 8 is arranged through the first glass layer 1 or the second glass layer 4, the outer side aperture of the prefabricated packaging hole can be 2mm-3mm, and the inner side aperture of the prefabricated packaging hole is 1mm.

And welding the sealing frame 2 with the first glass layer 1 and the second glass layer 4 respectively, spraying or cold pressing a first sealing material on the outer side of the joint of the sealing frame 2 and the adjacent welding layer to form a sealing coating 9, vacuumizing through the prefabricated packaging holes 8, and then placing indium-containing alloy balls into the prefabricated packaging holes 8, wherein the indium-containing alloy balls can be extruded in the prefabricated packaging holes 8 to form indium-containing alloy sealing blocks.

According to the same inventive concept, the embodiment also provides a manufacturing method of the vacuum sealing toughened glass.

Referring to fig. 1, the method for manufacturing vacuum sealing tempered glass includes:

step one:

the pre-fabricated package holes 8 are laser drilled in at least one of the outer solder layers of the plurality of solder layers. At least one outer welding layer of the plurality of welding layers adopts coated toughened glass.

In this step, the plurality of solder layers includes 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 coated glass. The prefabricated packaging hole 8 can be a conical stepped hole prefabricated before the first glass layer 1 or the second glass layer 4 is toughened; the prefabricated packaging hole 8 is arranged through the first glass layer 1 or the second glass layer 4, and the outer side aperture of the prefabricated packaging hole can be 2mm-3mm and the inner side aperture of the prefabricated packaging hole is 1mm.

Four sides of the first glass layer 1 and the second glass layer 4 are subjected to laser film removal molding after being toughened. For example, the film removal width of the first glass layer 1 and the second glass layer 4 is a width of the seal frame 2 widening by 2mm.

Step two:

the welding layers are laminated, pressed and attached, a sealing frame 2 and a supporting bar or a supporting block 3 positioned on the inner side of the sealing frame 2 are attached between two adjacent welding layers, and the sealing frame 2 is fixed with the two adjacent welding layers by laser welding.

In this step, the sealing frame 2 is a glass frame 2 provided between the first glass layer 1 and the second glass layer 4.

The second step may comprise the following subdivision steps:

the first glass layer 1, the sealing frame 2, the supporting bars or supporting blocks 3 and the second glass layer 4 are sequentially laminated and pressed and attached. For example, the first glass layer 1, the sealing frame 2, and the support bars or blocks 3, 4 may be stacked in sequence and aligned, and attached by mechanical pressure. A plurality of support bars or blocks 3 may be uniformly spaced inside the sealing rim 2.

And (3) laser scanning is carried out on the joint interface between the sealing frame 2 and the first glass layer 1 and the second glass layer 4 respectively to form a welding line 7. For example, the sealing frame 2 and the joint interface between the first glass layer 1 and the second glass layer 4 can be scanned by ultra-short pulse laser to form a welding line 7, so as to form a complete glass enclosure structure.

Step three: and (3) sealing and spraying or cold-pressing the first sealing material on the outer side of the joint of the sealing frame 2 and the adjacent welding layer to form a sealing coating 9, and forming the toughened glass to be vacuumized.

Specifically, the step may specifically include the following refinement steps:

and respectively attaching the prefabricated mask plates to the outer sides of the sealing frames 2.

Adding indium alloy powder into the powder feeder, setting the spraying gas pressure to be 0.4-0.6MP, setting the nozzle to be 1-3cm away from the mask plate, and forming the sealing coating 9 with the thickness of 0.3-1 mm at the moving speed of 50-100 mm/s.

Step four: and placing the toughened glass to be vacuumized into a vacuum chamber for vacuumizing.

In the step, when the toughened glass to be vacuumized is put into a vacuum chamber, the vacuum chamber can be vacuumized to 10 ^-1 Pa。

Step five: the second sealing material is placed in the preformed encapsulation holes 8 and pressed to form the encapsulation block 6.

This step may specifically comprise the following refinement steps:

the indium-containing alloy balls are placed into the preformed package holes 8.

And extruding and compacting the indium-containing alloy balls by adopting a pressure cone to form the indium-containing alloy sealing block. For example, a pressure cone may use a pressure greater than 1 kilogram force.

Step six: releasing the vacuum in the vacuum chamber, and taking out the packaged vacuum sealed tempered glass.

At least one outer welding layer of the plurality of welding layers adopts coated toughened glass,the heat transfer coefficient of the welded vacuum sealing toughened glass is lower, and at least one outer welding layer of the plurality of welding layers of the vacuum sealing toughened glass adopts coated toughened glass, so that the heat transfer coefficient of the welded vacuum sealing toughened glass is lower, and the heat insulation requirement of the requirement can be met. For example, the heat transfer coefficient of the vacuum sealed tempered glass may be lower than 0.8w/m ² ·k。

And the first sealing material is sprayed on the outer side of the joint of the sealing frame 2 and the first glass layer 1 and the second glass layer 4 to form a sealing coating 9, the sealing coating 9 is arranged at the joint between the sealing frame 2 and the welding layer, the gap between the welding layer and the sealing frame 2 can be effectively blocked, and the sealing effect of the vacuum sealing space of the vacuum sealing toughened glass is good.

Second embodiment:

according to a second embodiment of the present invention, there is provided another vacuum-tight tempered glass. Referring to fig. 2, the vacuum sealed tempered glass includes 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 laminated. At least one of the first glass layer 1 and the second glass layer 4 is coated tempered glass coated with an infrared reflection film 20. For example, the first glass layer 1 is coated tempered glass coated with the infrared reflection film 20. For example, the second glass layer 4 is coated tempered glass coated with the infrared reflection film 20. For example, the first glass layer 1 and the second glass layer 4 are each coated tempered glass coated with the infrared reflection film 20.

The sealing frame 2 is of an annular closed structure. The sealing frame 2 is arranged between the first glass layer 1 and the second glass layer 4 in a fitting way. The sealing rim 2 is arranged around the edge of the first glass layer 1 or the second glass layer 4. The sealing rim 2 may be a glass rim 2 arranged between the first glass layer 1 and the second glass layer 4.

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 enclose a vacuum enclosed space.

And spraying or cold pressing a first sealing material on the outer side of the joint of the sealing frame 2 and the first glass layer 1 and the second glass layer 4 so as to form a sealing coating 9.

The sealing coating 9 is arranged at the joint between the sealing frame 2 and the first glass layer 1 and the second glass layer 4, can effectively seal the gap between the sealing frame 2 and the first glass layer 1 and the second glass layer 4, and has good sealing effect on the vacuum sealing space of the vacuum sealing toughened glass.

A battery layer 15 is provided on the inner side surface of the first glass layer 1 or the second glass layer 4.

Referring to fig. 2 and 3, a preformed wire guide 11 is provided through the first glass layer 1 or the second glass layer 4. A preformed wire connection block 14 is placed in the preformed wire guide 11. The preformed wire connection block 14 is electrically connected to the battery 15.

A sealing insulator is provided between the preformed wire connection block 14 and the inner wall of the preformed wire guide 11. More preferably, the sealing insulator is a sintered body 12 formed of a low melting point glass frit or glass paste filled between the preformed wire connection block 14 and the inner wall of the preformed wire guide 11 after glass tempering.

The cell layer 15 may employ a perovskite solar cell. When the perovskite solar cell 15 is packaged, a reserved wire hole 11 is added on the outer glass layer, a reserved wire connecting block 14 is placed in the reserved wire hole 11 before glass tempering, and low-melting-point glass powder or glass paste is added to form a sintered body 12 during glass tempering. An infrared reflection film 20 is provided 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 for reflecting infrared light back to the battery layer 15.

The infrared reflection film 20 can reflect infrared light back to the battery layer 15, not only can reflect infrared light transmitted through the outer glass layer back to the battery layer, but also can improve the light energy utilization rate and reduce the outward heat energy diffusion of the battery.

The battery 15 is packaged in a vacuum closed space of vacuum sealing toughened glass, so that the influence of hydrolysis, oxidization and self decomposition of an absorption layer of the battery 15 on the service life of the battery 15 is avoided.

The vacuum enclosed space is filled with a protective gas. The protective gas in the vacuum enclosure can protect the battery 15 and can prolong the service life of the battery 15.

First glassAt least one of the glass layer 1 and the second glass layer 4 adopts coated toughened glass, so that the heat transfer coefficient of the welded vacuum seal toughened glass is lower, and at least one of the outer welding layers 1 and 4 of the welded vacuum seal toughened glass adopts coated toughened glass, so that the heat transfer coefficient of the welded vacuum seal toughened glass is lower, and the heat insulation requirement of the requirement can be met. For example, the heat transfer coefficient of the vacuum sealed tempered glass may be lower than 0.8w/m ² ·k。

In this embodiment, referring to fig. 2, four sides of the first glass layer 1 and the second glass layer 4 made of coated glass are subjected to laser film removal molding after being toughened. The film removing width of the first glass layer 1 and the second glass layer 4 is larger than the edge width of the sealing frame 2, so that a space for accommodating and installing the prefabricated mask plate is formed between the sealing frame 2 and the first glass layer 1 and the second glass layer 4. For example, the film removal width of the first glass layer 1 and the second glass layer 4 is a width of the seal frame 2 widening by 2mm.

The sealing rim 2 may be an annular closed structure arranged around the edge of the first glass layer 1 or the second glass layer 4. A supporting bar or supporting block 3 is also arranged between the first glass layer 1 and the second glass layer 4, and the supporting bar or supporting block 3 is positioned at the inner side of the sealing frame 2. A plurality of support bars or blocks 3 may be uniformly spaced inside the sealing rim 2. The support bar or the support block 3 is arranged between the first glass layer 1 and the second glass layer 4, so that the first glass layer 1 and the second glass layer 4 are prevented from being in fit contact after a vacuum layer is formed in a cavity formed by the first glass layer 1, the second glass layer 4 and the sealing frame 2. For example, the first glass layer 1 and the second glass layer 4 may be arranged in a rectangular structure, and the first glass layer 1 and the second glass layer 4 of the rectangular structure are stacked; the sealing frame 2 is an annular closed structure surrounding the edge of the rectangular first glass layer 1 or the second glass layer 4, and specifically comprises four sealing strips connected end to end.

The first sealing material may 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 may be set to 0.3mm-1mm. For example, the indium-containing alloy may be an indium-containing low melting point alloy, and the seal coating 9 is an indium-containing low melting point alloy coating.

The first sealing material adopts indium-containing alloy, and the indium-containing alloy is sprayed on the outer side of the joint of the glass frame 2 and the first glass layer 1 and the second glass layer 4 to form a sealing coating 9, so that the outer side of the joint of the glass frame 2 and the glass layer can be sealed. The indium alloy has ductility and wettability with glass, and can form a firm indium alloy coating after being sprayed on the outer surface of the glass, and the indium alloy coating has good adhesion strength with the glass, good sealing performance and high sealing reliability.

The side of the sealing rim 2 may be provided with a prefabricated mask. The prefabricated mask plate is closely attached to the side surface of the sealing frame 2. The width of the prefabricated mask plate is larger than the thickness of the sealing frame 2, so that the prefabricated mask plate can be tightly attached to and cover the sealing frame 2 and the joint of the sealing frame 2, the first glass layer 1 and the second glass layer 4. For example, the sealing frame 2 is an annular closed structure surrounding the edge of the rectangular first glass layer 1 or the second glass layer 4, and the prefabricated mask plate is tightly attached to four side sides of the sealing frame 2 to form four-side enclosure.

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

Referring to fig. 2 and 3, the method for manufacturing vacuum sealing tempered glass includes:

step one:

the prefabricated encapsulation holes 8 are formed by laser drilling on the first glass layer 1 or the second glass layer 4.

The first glass layer 1 or the second glass layer 4 is laser-perforated with preformed wire guides 11.

The preformed wire connection block 14 is placed into the preformed wire guide 11.

The preformed wire guide 11 is filled with a sealing insulating material.

The first glass layer 1 or the second glass layer 4 is tempered to form a sintered body 12 of the sealing insulating material.

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

In this step, at least one of the first glass layer 1 and the second glass layer 4 is coated tempered glass. Four sides of the first glass layer 1 and the second glass layer 4 are subjected to laser film removal molding after being toughened. For example, the film removal width of the first glass layer 1 and the second glass layer 4 may be 2mm plus the widening of the sealing rim 2. The prefabricated packaging hole 8 can be a conical stepped hole prefabricated before the first glass layer 1 or the second glass layer 4 is toughened; the prefabricated packaging hole 8 is arranged through the first glass layer 1 or the second glass layer 4, the outer side aperture of the prefabricated packaging hole can be 2mm-3mm, and the inner side aperture of the prefabricated packaging hole is 1mm.

The cell layer 15 may employ a perovskite solar cell. At least one of the first glass layer 1 and the second glass layer 4 may be coated tempered glass coated with the infrared reflection film 20. An infrared reflection film 20 is coated on the outer side surface of the first glass layer and/or the second glass layer; the infrared reflection film 20 is a metal film or a compound film for reflecting infrared light back to the battery layer 15.

Step two:

the first glass layer 1 and the second glass layer 4 are laminated, pressed and attached, a sealing frame 2 and a supporting bar or a supporting block 3 positioned on the inner side of the sealing frame 2 are attached between the first glass layer 1 and the second glass layer 4, and the sealing frame 2 is fixed with the first glass layer 1 and the second glass layer 4 through laser welding respectively.

In this step, the sealing frame 2 may be a glass frame 2 provided between the first glass layer 1 and the second glass layer 4.

The second step may specifically include the following subdivision steps:

the first glass layer 1, the sealing frame 2, the supporting bars or supporting blocks 3 and the second glass layer 4 are sequentially laminated and pressed and attached. For example, the first glass layer 1, the sealing frame 2, and the support bars or blocks 3, 4 may be stacked in sequence and aligned, and attached by mechanical pressure.

This step may specifically comprise the following refinement steps:

Adding indium alloy powder into a powder feeder, setting the spraying gas pressure to be 0.4MP-0.6MP, setting the nozzle to be 1cm-3cm away from the prefabricated mask plate, and forming the sealing coating 9 with the thickness of 0.3mm-1mm at the moving speed of 50mm/s-100 mm/s.

Step four:

and placing the toughened glass to be vacuumized into a vacuum chamber for vacuumizing.

A shielding gas is placed into the vacuum chamber.

In the step, after the toughened glass to be vacuumized is placed in a vacuum chamber, the vacuum chamber is vacuumized to 10 < -1 > Pa, and protective gas can be placed in the vacuum chamber so as to fill the protective gas into a vacuum closed space of the vacuum sealed toughened glass.

This step may specifically comprise the following refinement steps:

Step six: releasing the vacuum in the vacuum chamber, and taking out the vacuum sealed tempered glass packaged with the battery 15.

At least one of the first glass layer 1 and the second glass layer 4 adopts coated glass, so that the heat transfer coefficient of the welded vacuum sealing toughened glass is lower, and the heat insulation requirement can be met. For example, the heat transfer coefficient of the vacuum sealed tempered glass may be lower than 0.8w/m ² ·k。

Perovskite solar cells 15 may be encapsulated on the inside surface of the outer glass layer. An infrared reflection film 20 is coated on the outer surface of the outer glass layer; the infrared reflection film 20 is a metal film or a compound film for reflecting infrared light back to the battery layer. The infrared reflection film 20 can reflect infrared light transmitted through the outer glass layer back to the battery layer, so that the light energy utilization rate is improved, and the outward heat energy diffusion of the battery can be reduced.

Third embodiment:

according to a third embodiment of the present invention, there is provided still another vacuum-tight tempered glass. Referring to fig. 4, the vacuum sealed tempered glass includes a middle glass layer 5 and two outer glass layers 1, 4 respectively located at both sides of the middle glass layer 5 in the thickness direction. At least one of the two outer glass layers 1, 4 is coated toughened glass. For example, low-e coated toughened glass (Lowemissivity) may be used. For example, the coated tempered glass may be coated tempered glass coated with an infrared reflective film.

And sealing frames 2 are arranged between the middle glass layer 5 and the outer glass layer. The sealing frame 2 is of an annular closed structure. The sealing frame 2 is welded and fixed with the middle glass layer 5 and the outer glass layer respectively. And the joint interface between the sealing frame 2 and the middle glass layer 5 and the outer glass layer is scanned by laser to form a welding line 7. The middle glass layer 5, the outer glass layer and the sealing frame 2 jointly enclose a vacuum enclosed space.

And spraying a first sealing material on the outer side of the joint of the sealing frame 2, the middle glass layer 5 and the outer glass layer so as to form a sealing coating 9.

At least one of the two outer glass layers 1 and 4 adopts film-coated toughened glass, so that the heat transfer coefficient of the welded vacuum sealing toughened glass is lower, and the heat insulation requirement of the requirement can be met. For example, the heat transfer coefficient of the vacuum sealed tempered glass may be lower than 0.8w/m ² ·k。

The sealing coating 9 is arranged at the joint between the sealing frame 2 and the middle glass layer 5 and the outer glass layer, can effectively seal the gap between the sealing frame 2 and the middle glass layer 5 and the outer glass layer, and has good sealing effect on the vacuum sealing space of the vacuum sealing toughened glass.

In this embodiment, referring to fig. 4, the two 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 supporting bar or block 3A positioned inside the first sealing frame 2A are arranged between the middle 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 middle glass layer 5, the first outer glass layer 1 and the first sealing frame 2A jointly enclose a vacuum enclosed space. For example, the intermediate glass layer 5 and the first outer glass layer 1 may be provided in a rectangular structure, the intermediate glass layer 5 and the first outer glass layer 1 of the rectangular structure being laminated; the first sealing frame 2A is an annular closed structure surrounding the edge of the rectangular middle glass layer 5 or the first outer glass layer 1, and specifically comprises four sealing strips connected end to end.

The first support bar or the support block 3A is arranged between the middle glass layer 5 and the first outer glass layer 1, so that the middle glass layer 5 is prevented from being in contact with the first outer glass layer 1 after a vacuum layer is formed in a cavity surrounded by the middle glass layer 5, the first outer glass layer 1 and the first sealing frame 2A. For example, a plurality of first support bars or blocks 3A may be uniformly spaced inside the first sealing rim 2A.

And spraying a first sealing material on the outer side of the joint of the first sealing frame 2A, the middle glass layer 5 and the first outer glass layer 1, so as to form a sealing coating 9.

A second sealing frame 2B and a second supporting bar or supporting block 3B positioned on the inner side of the second sealing frame 2B are arranged between the middle 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 middle glass layer 5, the second outer glass layer 4 and the second sealing frame 2B jointly enclose a vacuum enclosed space. For example, the intermediate glass layer 5 and the second outer glass layer 4 may be arranged in a rectangular structure, the intermediate glass layer 5 and the second outer glass layer 4 of the rectangular structure being stacked; the second sealing frame 2B is an annular closed structure surrounding the rectangular middle glass layer 5 or the edge of the second glass layer, and specifically comprises four sealing strips connected end to end.

The second support bar or the support block 3B is arranged between the middle glass layer 5 and the second outer glass layer 4 to provide support, so that the middle glass layer 5 and the second outer glass layer 4 are prevented from being in fit contact after a vacuum layer is formed in a cavity surrounded by the middle glass layer 5, the second outer glass layer 4 and the second sealing frame 2B. For example, a plurality of second support bars or blocks 3B may be uniformly spaced inside the second sealing rim 2B.

And spraying a first sealing material on the outer side of the joint of the second sealing frame 2, the middle glass layer 5 and the second outer glass layer 4, so as to form a sealing coating 9.

In this embodiment, referring to fig. 5, the bonding interface between the middle glass layer 5 and the two sealing frames 2 at two sides in the thickness direction thereof is scanned by laser to form a weld 7, thereby forming an intermediate.

Referring to fig. 4, the bonding interface between the two outer glass layers and the two sealing frames 2 of the intermediate body is scanned by laser to form a weld 7.

Four sides of the two outer glass layers are subjected to laser film removal molding after being toughened by coated glass. The film removal width of the two outer glass layers is larger than the edge width of the sealing frame 2. The film removing width of the two outer glass layers is larger than the edge width of the sealing frame 2, so that a space for accommodating and installing the prefabricated mask plate is formed between the sealing frame 2 and the two outer glass layers respectively. For example, the film removal width of the two outer glass layers is 2mm plus the width of the sealing rim 2.

The two outer glass layers are respectively provided with prefabricated packaging holes 8. The prefabricated packaging holes 8 can be respectively two conical step holes prefabricated before the outer glass layer is toughened; the prefabricated packaging holes 8 are respectively arranged through the two outer glass layers, the outer side aperture of the prefabricated packaging holes can be set to be 2mm-3mm, and the inner side aperture of the prefabricated packaging holes is 1mm.

And the sealing frame 2 is welded with the middle glass layer 5 and the outer glass layer respectively, and a sealing coating 9 is formed by spraying, after vacuumizing through the prefabricated packaging holes 8, the indium-containing alloy balls can be placed into the prefabricated packaging holes 8, and the indium-containing alloy balls can be extruded in the prefabricated packaging holes 8 to form the indium-containing alloy sealing blocks.

In this embodiment, referring to fig. 4, the first sealing material may be an indium-containing alloy. The sealing coating 9 is correspondingly provided as an indium-containing alloy coating. The sealing coating 9 may be provided in a thickness of 0.3mm to 1mm. For example, the indium-containing alloy may be an indium-containing low melting point alloy, and the seal coating 9 is an indium-containing low melting point alloy coating.

The first sealing material adopts indium-containing alloy, and the indium-containing alloy is sprayed on the outer side of the joint of the glass frame 2, the intermediate glass layer 5 and the outer glass layer to form a sealing coating 9, so that the outer side of the joint of the glass frame 2, the intermediate glass layer 5 and the outer glass layer can be sealed. The indium alloy has ductility and wettability with glass, and can form a firm indium alloy coating after being sprayed on the outer surface of the glass, and the indium alloy coating has good adhesion strength with the glass, good sealing performance and high sealing reliability.

The side of the sealing frame 2 can be clung to the enclosure and is provided with a prefabricated mask plate. The width of the prefabricated mask plate is larger than the thickness of the sealing frame 2, so that the prefabricated mask plate can be tightly attached to and cover the sealing frame 2 and the joint between the glass frame 2 and the middle glass layer 5 and the outer glass layer. For example, the sealing frame 2 is an annular closed structure surrounding the edge of the rectangular middle glass layer 5 or the outer glass layer, and the prefabricated mask plates are tightly attached to four side sides of the sealing frame 2 to form four-side enclosing. For example, the width of the prefabricated mask plate is 2mm greater than the thickness of the sealing frame 2.

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

Referring to fig. 4, the method for manufacturing the vacuum sealing tempered glass comprises the following steps:

step one:

the prefabricated encapsulation holes 8 are formed on the first outer glass layer 1 and the second outer glass layer 4 by laser drilling.

In this step, at least one of the first outer glass layer 1 and the second outer glass layer 4 is coated tempered glass. The prefabricated packaging holes 8 can be conical step holes prefabricated before the first outer glass layer 1 and the second outer glass layer 4 are toughened respectively; the prefabricated packaging holes 8 are respectively arranged through the first outer glass layer 1 and the second outer glass layer 4, the outer side aperture can be set to be 2mm-3mm, and the inner side aperture is 1mm.

The first outer glass layer 1 and the second outer glass layer 4 are formed by four sides of laser film removal after the coated glass is toughened. For example, the film removal width of the two outer glass layers is 2mm plus the width of the sealing rim 2.

Step two:

In this step, the plurality of solder layers includes the intermediate glass layer 5 and the first outer glass layer 1 and the second outer glass layer 4 respectively located on both sides in the thickness direction of the intermediate glass layer 5. A first sealing frame 2A and a first supporting bar or block 3A positioned inside the first sealing frame 2A are arranged between the middle glass layer 5 and the first outer glass layer 1. A second sealing frame 2B and a second supporting bar or supporting block 3B positioned on the inner side of the second sealing frame 2B are arranged between the middle glass layer 5 and the second outer glass layer 4. The first sealing frame 2A and the second sealing frame 2B may each be glass frames.

The second step may comprise the following subdivision steps:

referring to fig. 5, the first sealing frame 2A, the middle glass layer 5, and the second sealing frame 2B are sequentially stacked, and pressed and attached.

And scanning laser at the joint interface between the intermediate glass layer 5 and the first sealing frame 2A and the second sealing frame 2B to form a welding line 7, so as to form an intermediate.

Referring to fig. 4, a first outer glass layer 1, a first support bar or block 3A, an intermediate, a second support bar or block 3B, and a second outer glass layer 4 are laminated in sequence, and pressed and bonded.

And (3) laser scanning is carried out on the joint interface of the first outer glass layer 1 and the first sealing frame 2A of the intermediate and the joint interface of the second outer glass layer 4 and the second sealing frame 2B of the intermediate to form welding seams.

Step three: and (3) sealing and spraying the first sealing material on the outer side of the joint of the sealing frame 2 and the adjacent welding layer to form a sealing coating 9, and forming the toughened glass to be vacuumized.

This step may specifically comprise the following refinement steps:

Adding indium alloy powder into the powder feeder, setting the spraying gas pressure to be 0.4MP-0.6MP, setting the nozzle to be 1cm-3cm away from the mask plate, and forming the sealing coating 9 with the thickness of 0.3mm-1mm at the moving speed of 50mm/s-100 mm/s.

This step may specifically comprise the following refinement steps:

At least one of the first outer glass layer 1 and the second outer glass layer 4 adopts film-coated toughened glass, so that the heat transfer coefficient of the welded vacuum sealing toughened glass is lower, and the heat insulation requirement of the requirement can be met. For example, the heat transfer coefficient of the vacuum sealed tempered glass may be lower than 0.8w/m ² ·k。

In the invention, at least one outer welding layer of the plurality of welding layers of the vacuum sealing toughened glass adopts the coated toughened glass, so that the heat transfer coefficient of the vacuum sealing toughened glass formed by welding is lower, and the heat insulation requirement of the requirement can be met.

The above is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions or improvements within the spirit of the present invention are intended to be covered by the claims of the present invention.

Claims

1. A vacuum sealed tempered glass, comprising:

2. The vacuum-tight tempered glass according to claim 1, wherein:

the welding layer is a glass layer, the sealing frame is a glass frame, the first sealing material is 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 the number of the groups of groups,

3. The vacuum-tight tempered glass according to claim 1, wherein:

the plurality of welding layers comprise a first glass layer and a second glass layer;

4. A vacuum sealed tempered glass as claimed in claim 3, wherein:

four sides of the first glass layer and the second glass layer are subjected to laser film removal forming after being toughened by coated glass, and the film removal width of the first glass layer and the second glass layer is larger than the edge width of the sealing frame; and/or, the first glass layer and/or the second glass layer are/is provided with prefabricated packaging holes; the prefabricated packaging holes are configured to be welded with the first glass layer and the second glass layer respectively at the sealing frame, the sealing coating is formed by spraying, and after vacuumizing, the sealing coating can be placed into an indium-containing alloy ball and extruded to form an indium-containing alloy sealing block.

5. A vacuum sealed tempered glass as claimed in claim 3, wherein:

a battery layer is arranged on the inner side surface of the first glass layer or the second glass layer;

6. The vacuum-tight tempered glass as claimed in claim 5, wherein:

the vacuum closed space is filled with protective gas; and/or the number of the groups of groups,

7. The vacuum-tight tempered glass according to claim 1, wherein:

The welding layers comprise an intermediate glass layer and two outer glass layers respectively positioned at two sides of the intermediate glass layer in the thickness direction of the intermediate glass layer;

at least one of the two outer glass layers adopts coated toughened glass;

8. The vacuum-tight tempered glass as claimed in claim 7, wherein:

laser scanning is carried out on the joint interface between the middle glass layer and the two sealing frames at the two sides of the thickness direction of the middle glass layer to form a welding line so as to form an intermediate; the joint interfaces of the two outer glass layers and the two sealing frames of the intermediate body are respectively scanned by laser to form welding seams; and/or the number of the groups of groups,

9. The manufacturing method of the vacuum sealing toughened glass is characterized by comprising the following steps of:

placing tempered glass to be vacuumized into a vacuum chamber for vacuumizing;

10. The method for manufacturing vacuum-sealed tempered glass as claimed in claim 9, wherein:

11. The method for manufacturing vacuum-sealed tempered glass as claimed in claim 9, wherein:

the welding layers comprise a first glass layer and a second glass layer, and at least one glass layer of the first glass layer and the second glass layer adopts film-coated toughened glass;

placing a preformed wire connection block into the preformed wire guide;

filling sealing insulating materials into the prefabricated wire guide holes;

a shielding gas is placed into the vacuum chamber.

12. The method for manufacturing vacuum-sealed tempered glass as claimed in claim 11, wherein:

the battery layer adopts a perovskite solar battery;

13. The method for manufacturing vacuum-sealed tempered glass as claimed in claim 9, wherein:

The welding layers comprise an intermediate glass layer, and a first outer glass layer and a second outer glass layer which are respectively positioned at two sides of the intermediate glass layer in the thickness direction of the intermediate glass layer; at least one outer glass layer of the first outer glass layer and the second outer glass layer is coated toughened glass; the first sealing frame and a first supporting bar or supporting block positioned at the inner side of the first sealing frame are arranged between the middle glass layer and the first outer glass layer; a second sealing frame and a second supporting bar or supporting block positioned at the inner side of the second sealing frame are arranged between the middle glass layer and the second outer glass layer;

forming the prefabricated packaging holes on the first outer glass layer and the second outer glass layer by means of laser drilling respectively; at least one outer glass layer of the first outer glass layer and the second outer glass layer is formed by four sides of toughened coated glass through laser film removal;

14. The method for manufacturing vacuum-sealed tempered glass as claimed in claim 9, wherein:

and placing a second sealing material in the prefabricated packaging hole, and extruding the second sealing material to form a packaging block after vacuumizing, wherein the method comprises the following steps of: