CN113772967A

CN113772967A - Vacuum glass

Info

Publication number: CN113772967A
Application number: CN202111287715.6A
Authority: CN
Inventors: 王立国; 王斐然
Original assignee: Wami Zhenbo Technology Beijing Co ltd
Current assignee: Wami Zhenbo Technology Beijing Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2021-12-10

Abstract

The invention relates to vacuum glass, which sequentially comprises upper glass, a vacuum layer and lower glass from top to bottom, wherein a support column array is arranged between the upper glass and the lower glass, and the periphery of the upper glass and the periphery of the lower glass are sealed; a getter is arranged in the vacuum layer and can be activated before being packaged in a vacuum environment; the upper layer of glass or the lower layer of glass is provided with an air suction opening, the getter is combined with the sealing piece, and the sealing piece seals the air suction opening, and meanwhile, the getter enters a vacuum environment and can start to suck air. The vacuum glass provided by the invention completely omits the steps of getter encapsulation and laser drilling activation, and has the advantages of few operation steps, simple operation and low cost.

Description

Vacuum glass

Technical Field

The invention relates to the technical field of glass structures, in particular to vacuum glass.

Background

The vacuum glass is formed by sealing the peripheries of two pieces of flat glass, vacuumizing the gap between the two pieces of flat glass and sealing the exhaust hole. The vacuum glass is a great achievement of cooperative cooperation of glass technology, material science, vacuum technology, physical measurement technology, industrial automation, building science and the like, and multiple subjects, multiple technologies and multiple processes. In the prior art, CN1621653A uses an encapsulated getter and an decapsulating method in vacuum glass, wherein the getter in the vacuum layer needs to be encapsulated in an encapsulating box formed by a housing, then put between two layers of glass, cover a sealing sheet on a pumping port after vacuum is formed between the two layers of glass, and then use a laser to perforate the encapsulating box formed by the housing, so that the getter can absorb gas generated in the vacuum layer from a channel formed by a hole on the box. The problems existing in the prior art are as follows: 1. the getter has a limited range of material choices, such as iron or aluminum zirconium; 2. the getter is encapsulated in the encapsulating box because the getter is required to be placed inside the vacuum glass in advance, the edge sealing is carried out under the atmospheric heating along with the vacuum glass, and in order to avoid the situation that the getter is oxidized and deteriorated when being heated under the atmospheric heating, special equipment is required to encapsulate the getter in the encapsulating box, so that the manufacturing cost and the process complexity of the product are increased; 3. the laser is used for punching the encapsulated getter, so that the problems of multiple operation steps, complex operation, high cost and the like exist.

Disclosure of Invention

The invention aims to solve the technical problem of providing vacuum glass aiming at the defects.

The invention is realized by the following technical scheme:

the vacuum glass sequentially comprises an upper layer glass, a vacuum layer and a lower layer glass from top to bottom, wherein a support column array is arranged between the upper layer glass and the lower layer glass, and the periphery of the upper layer glass and the periphery of the lower layer glass are sealed; a getter is arranged in the vacuum layer and can be activated before being packaged in a vacuum environment; the upper layer of glass or the lower layer of glass is provided with an air suction opening, the getter is combined with the sealing piece, and the sealing piece seals the air suction opening, and meanwhile, the getter enters a vacuum environment and can start to suck air.

Furthermore, the vacuum glass, the extraction opening is a stepped hole, and the sealing sheet is plugged into the stepped hole through a sealant, so that the outer side of the sealing sheet and the surface of the peripheral glass are on the same plane.

Optionally, in the vacuum glass, a snap ring or a plurality of peripheral snap points are arranged on the inner side of the sealing sheet, and the getter is clamped in the snap ring or the peripheral snap points.

Optionally, in the vacuum glass, a central clamping column is arranged on the inner side of the sealing sheet, and the getter is sleeved on the central clamping column.

Optionally, in the vacuum glass, a groove is formed in the inner side of the sealing sheet, and the getter is clamped in the groove.

Furthermore, in the vacuum glass, the lower surface of the upper layer of glass or the upper surface of the lower layer of glass is plated with a Low-E film.

Further, the upper glass and the lower glass are made of ultra-white glass, float glass, borosilicate glass or quartz glass.

Further, the getter is an evaporable type or a non-evaporable type.

Furthermore, in the vacuum glass, the sealing material around the space between the upper layer glass and the lower layer glass is glass powder or a metal material.

Further, the getter is one or more of copper, aluminum, iron, titanium, zirconium, molybdenum and other metals capable of reacting with air at normal temperature.

The invention has the advantages and effects that:

the getter of the vacuum glass provided by the invention is combined with the sealing piece, the getter enters a vacuum environment and can start to absorb air while the sealing piece seals the air suction opening, the steps of sealing the getter and activating laser drilling are completely omitted, and the getter vacuum glass has the advantages of few operation steps, simplicity in operation and low cost.

Drawings

FIG. 1 is a schematic structural view of a vacuum glass provided by the present invention;

FIG. 2 is a schematic view showing the configuration of a getter in example 1 of the vacuum glass provided by the present invention;

FIG. 3 is a schematic view showing the configuration of a getter in example 2 of the vacuum glass provided by the present invention;

FIG. 4 is a schematic view showing the configuration of a getter in example 3 of the vacuum glass provided by the present invention;

fig. 5 is a schematic structural view of a vacuum glass exhaust sealing device for sealing vacuum glass.

Description of reference numerals: 1-upper glass, 2-lower glass, 3-vacuum layer, 4-support column, 5-Low-E film, 6-pumping hole, 7-sealing sheet, 8-sealing material, 9-peripheral clamping point, 10-central clamping column, 11-groove and 12-getter; 100-vacuum glass, 101-sealing solder, 102-vacuum gas circuit valve, 103-lifting platform, 104-telescopic bellows, 105-sealing ring, 106-vacuum channel, 107-sealing piece heating device, 108-exhaust head, 109-lead, 110-vacuum pipeline, 111-exhaust head vertical driving mechanism, 112-first vacuum exhaust pipe, 113-exhaust head horizontal driving mechanism and 114-second vacuum exhaust pipe.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention are described in detail below with reference to the accompanying drawings:

in the description of the present invention, it is to be understood that, unless otherwise specified, "a plurality" means two or more; the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and are therefore not to be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

FIG. 1 is a schematic structural diagram of a vacuum glass provided by the present invention. The vacuum glass sequentially comprises an upper layer glass 1, a vacuum layer 3 and a lower layer glass 2 from top to bottom, wherein the upper layer glass and the lower layer glass can be ultra-white glass, float glass, borosilicate glass or quartz glass. A plurality of support columns 4 are arranged between the upper layer glass 1 and the lower layer glass 2 to form a support column array, and the periphery between the upper layer glass 1 and the lower layer glass 2 is sealed. The sealing material 8 between the upper glass 1 and the lower glass 2 may be glass frit or a metal material. The lower surface of the upper layer glass 1 and the upper surface of the lower layer glass 2 can be plated with Low-E films 5. Or, the lower surface of the upper glass layer 1 is plated with a Low-E film 5; or, the upper surface of the lower layer glass 2 is plated with a Low-E film 5. The getter 12 is arranged in the vacuum layer 3, and the getter is made of one or more of copper, aluminum, iron, titanium, zirconium, molybdenum and other metals capable of reacting with air at normal temperature and can be activated before being packaged in a vacuum environment. The getter is combined with the sealing piece, and the getter enters a vacuum environment and can start to absorb air while the sealing piece seals the air suction port. The getter can be evaporable or non-evaporable, and the getter is activated in a vacuum at a high temperature before sealing. In one embodiment, the upper layer glass 1 or the lower layer glass 2 is provided with an air exhaust opening 6, a sealing sheet 7 is arranged in the air exhaust opening 6, and a getter 12 is arranged on the inner side of the sealing sheet 7. Specifically, the air extraction opening 6 is a stepped hole, and the sealing sheet 7 is sealed and blocked by sealant or sealing solder, so that the outer side of the sealing sheet 7 and the periphery are on the same horizontal plane.

The getter of the vacuum glass is arranged in the following mode: as shown in fig. 2, a snap ring (not shown) or a plurality of peripheral fastening points 9 are arranged on the inner side of the sealing sheet 7, and the getter 12 is fastened in the snap ring or the plurality of peripheral fastening points 9. As shown in fig. 3, a central fastening column 10 is disposed inside the sealing sheet 7, and the getter 12 is sleeved on the central fastening column 10. As shown in fig. 4, a groove 11 is formed inside the sealing sheet 7, and the getter 12 is clamped in the groove 11.

The air suction port 6 of the vacuum glass can be sealed in the vacuum glass exhaust sealing device, and the getter is always in a vacuum environment before and during sealing, so that the condition of oxidation can not occur, and a packaging box is not needed.

Fig. 5 is a schematic structural view of a vacuum glass exhaust sealing device for sealing vacuum glass. This vacuum glass exhaust sealing device includes exhaust head 108, one side of exhaust head 108 is provided with evacuation pipeline 110, evacuation pipeline 110 internal interlude is connected with first vacuum exhaust pipe 112 and second vacuum exhaust pipe 114, evacuation passageway 106 has been seted up to exhaust head 108 top center department, evacuation passageway 106 communicates with first vacuum exhaust pipe 112 each other, sealing plate heating device 107 is installed to evacuation passageway 106's below, sealing plate 7 (the sealing plate is in the same place with the getter combination, the getter faces up) can be placed to sealing plate heating device 107's top center department, sealing plate heating device 107 sets up on lift platform 103, lift platform 103's below is equipped with scalable bellows 104, scalable bellows 104 communicates with second vacuum exhaust pipe 114 each other, install vacuum gas circuit valve 102 on the evacuation pipeline 110. The bottom of the sealing sheet heating device 107 is connected with a lead 109, and the sealing sheet heating device is connected with a power supply through the lead. The top of the exhaust head 108 is provided with a sealing ring 105 at the edge of the vacuum channel 106. The sealing ring realizes the sealing of the exhaust head and the vacuum glass.

The specific operation process is as follows:

as shown in fig. 5, when the vacuum glass to be evacuated is evacuated through the vacuum glass exhaust sealing device with the pumping hole facing downward, first the exhaust head 108 is placed below the vacuum glass 100, the position of the pumping channel 106 above the exhaust head 108 is aligned with the pumping hole 6 of the vacuum glass, then the power supply is connected through the wire 109, one end of the first vacuum exhaust pipe 112 and one end of the second vacuum exhaust pipe 114 are connected to an external vacuum-pumping device, and the vacuum gas path valve 102 is opened, which is to pump the gas inside the vacuum layer 3 in the vacuum glass 100 through the first vacuum exhaust pipe 112, the pumping channel 106 and the pumping hole 6 of the vacuum glass. At the same time, the inside of the bellows 104 is evacuated through the second vacuum exhaust pipe 114. At this time, the inside of the bellows 104 and the inside of the evacuation passageway 106 are both in a vacuum state, and they are isolated from each other and not communicated with each other, so that there is no pressure difference, and the bellows does not extend. After the vacuum pumping is completed, the sealing sheet heating device 107 melts the sealing solder 101 attached to the surface of the sealing sheet 104, the second vacuum exhaust pipe 114 is communicated with the outside through the vacuum air path valve 102, air enters the interior of the telescopic bellows 104 along the second vacuum exhaust pipe 114, so that a pressure difference is formed between the interior of the telescopic bellows and the interior of the vacuum pumping channel, namely, the pressure in the telescopic bellows is larger than the pressure in the inner space of the vacuumizing channel, the telescopic bellows 104 extends and lifts the lifting platform 103 and the sealing piece heating device 107 to ascend, the opening degree of the vacuum gas circuit valve 102 is controlled, the extension speed of the telescopic corrugated pipe can be well controlled, the sealing sheet 7 is attached to the extraction opening 6 of the vacuum glass, and at the moment, the sealing sheet 7 and the vacuum glass 100 are adhered together by the molten sealing welding flux 101, so that the vacuum pumping and sealing of the vacuum glass can be completed at one time.

The above examples are only for illustrating the technical solutions of the present invention, and are not intended to limit the scope of the present invention. But all equivalent changes and modifications within the scope of the present invention should be considered as falling within the scope of the present invention.

Claims

1. The vacuum glass sequentially comprises an upper layer glass, a vacuum layer and a lower layer glass from top to bottom, wherein a support column array is arranged between the upper layer glass and the lower layer glass, and the periphery of the upper layer glass and the periphery of the lower layer glass are sealed; the getter is arranged in the vacuum layer and can be activated before being packaged in a vacuum environment; the upper layer of glass or the lower layer of glass is provided with an air suction opening, the getter is combined with the sealing piece, and the sealing piece seals the air suction opening, and meanwhile, the getter enters a vacuum environment and can start to suck air.

2. The vacuum glass according to claim 1, wherein the air-extracting opening is a stepped hole, and the sealing sheet is sealed to the stepped hole by a sealant, so that the outer side of the sealing sheet is flush with the surface of the surrounding glass.

3. The vacuum glass according to claim 1, wherein a snap ring or a plurality of peripheral clamping points are arranged on the inner side of the sealing sheet, and the getter is clamped in the snap ring or the plurality of peripheral clamping points.

4. The vacuum glass according to claim 1, wherein a central clamping column is arranged on the inner side of the sealing sheet, and the getter is sleeved on the central clamping column.

5. The vacuum glass according to claim 1, wherein a groove is formed on the inner side of the sealing sheet, and the getter is clamped in the groove.

6. The vacuum glass as claimed in claim 1, wherein the lower surface of the upper glass layer or the upper surface of the lower glass layer is coated with a Low-E film.

7. The vacuum glass as claimed in claim 1, wherein the upper glass and the lower glass are ultra-white glass, float glass, borosilicate glass or quartz glass.

8. The vacuum glass according to claim 1, wherein the getter is evaporable or non-evaporable.

9. The vacuum glass as claimed in any one of claims 1 to 8, wherein the sealing material around the upper glass layer and the lower glass layer is glass powder or a metal material.

10. A vacuum glass according to any of claims 1 to 8, wherein the getter material is one or more of copper, aluminum, iron, titanium, zirconium, molybdenum and other metals that react with air at normal temperature.