WO2010114285A2

WO2010114285A2 - Method for manufacturing vacuum glass, and vacuum glass manufactured by same

Info

Publication number: WO2010114285A2
Application number: PCT/KR2010/001940
Authority: WO
Inventors: 박재홍
Original assignee: 주식회사 에피온
Priority date: 2009-03-30
Filing date: 2010-03-30
Publication date: 2010-10-07
Also published as: KR101081390B1; KR20100108751A; WO2010114285A3

Abstract

The present invention relates to a vacuum glass manufacturing method that manufactures vacuum glass by overlapping a plurality of panes such that vacuum gaps form between the panes, and to vacuum glass manufactured by same. More particularly, an expandable and contractible thin metal plate is inserted during hermetic bonding of the plurality of panes using low-melting frit glass, so that stress is not generated even though the panes disposed at both ends of the plurality of panes of the vacuum glass contract and expand in different manners due to a temperature difference between both ends of the panes. Even if the temperature varies greatly within the vacuum glass, the thin metal plate absorbs the stress caused by contraction and expansion at both ends of the glass, and can prevent the generation of deflection and cracks in the vacuum glass. As hermetic bonding of low-melting glass is performed under a high vacuum atmosphere, the vacuum glass does not lose its functionality even if functional panes of the type which lose functionality due to oxidization, such as soft-type low-E glass, reflective glass, electrochromatic glass or glass with a solar cell substrate, are used.

Description

Vacuum glass manufacturing method and vacuum glass produced thereby

The present invention relates to a vacuum glass manufacturing method made by stacking a plurality of plate glass so that the space between the plate glass is in a vacuum state, and more particularly, to a vacuum glass manufactured by using a plurality of plate glass in a vacuum atmosphere using a low melting point frit glass By inserting a metal sheet having a shape that is free of shrinkage expansion in sealing bonding, stress does not occur even if the plate glass at both ends shrinks and expands differently due to the temperature difference between the ends of the plurality of plate glass. The present invention relates to a vacuum glass manufacturing method and a vacuum glass manufactured by the same, wherein the metal sheet absorbs the shrinkage and expansion stress of both ends of the glass to prevent the bending and cracking of the vacuum glass.

Nowadays, all large and small buildings such as new apartments, residential complexes, office buildings, etc., have a tendency to finish the entire or most of the exterior walls of glass in order to have a beautiful appearance and to have a clear view.

As such, glass is a material that can make the appearance of buildings beautiful and diverse in buildings, but glass has some fatal weaknesses in buildings.

That is, the glass increases energy consumption compared to the concrete wall due to the lower insulation rate, and as a result, the higher the specific gravity of the glass in the building, the combination of sunshades such as blinds, verticals and curtains to cover the sun. Therefore, it has a disadvantage that the additional cost increases.

In particular, glass not only accepts hot direct sunlight from the sun, but also discharges heat inside the room as it is, thereby acting as one of the main sources of energy loss in the building.

That is, in winter, the heating cost is increased because the heat of the interior of the glass is leaked out as it is, and in the summer, the cooling cost increases because the external heat flows into the interior as it passes through the glass.

In other words, glass is usually an important medium that penetrates the interior and exterior of a building, but its thermal conductivity is 10 times weaker than that of a wall.

In particular, the national energy consumption in the domestic building sector accounts for about 30% of the total energy consumption, and about 40% of the building's energy consumption is lost through windows. In view of the reality, increasing the insulation rate of the building through is a shortcut to energy saving and can be directly linked to fundamentally strengthening the competitiveness of the national economy.

Recently, there has been a trend to change from single layer (or single layer) glass to double layer (or multilayer) glass.

Double-layer glass refers to the compression of a film having a high tensile force between the plate glass and the plate glass or the formation of a dry air layer between the plate glass and the plate glass. In the latter case, a vacuum is formed as a dry air layer formed inside. do. This multilayer glass is a double glass with a space of about 1cm between two layers of glass plates, and is widely used as a window material for high-grade buildings due to its high sunscreen, soundproofing, and insulation effect.

1 is a perspective view (a) and a cross-sectional view (b) of a vacuum glass according to the prior art.

As shown in the figure, the vacuum glass 90 according to the prior art has a circumference to vacuum-tighten a space where a spacer (support pillar) 94 is disposed between two layers of

panes

91 and 92. Sealed with a sealing material 93, the inner air is exhausted through an exhaust tube 95 formed in the plate glass on one surface, and is manufactured under reduced pressure.

However, when the low-E glass is applied to the vacuum glass 90, the hard type Roy glass may be applied as a single plate, but a soft type having excellent radiant heat shielding degree compared to the hard Roy glass. The application of Roy glass was difficult. This requires heating the

panes

91 and 92 in the atmosphere to 450 ° C. in the air in order to melt the sealing material 93 between the two layers of

panes

91 and 92 in the process of making the vacuum glass. This is because the coating film is oxidized, discolored, and loses the radiation shielding function.

In addition, in the application of electrochromatic glass or glass on which a solar cell substrate is formed, there is a problem in that the metal coating film is oxidized similarly to the soft Roy glass.

In order to avoid this, a low melting point of indium (indium) or an indium alloy was used as the sealing material 93 of the vacuum glass 90 to seal two layers of glass at about 200 ° C., but in this case, the vacuum glass 90 As the price increases due to the indium or the indium alloy, as well as the internal vacuum may be weakened as the gas remaining without being sufficiently exhausted through the exhaust tube 95 due to low temperature bonding is gradually degassed. There has been a problem that the insulation function is lost after a year.

In addition, since the vacuum glass 90 has to go through a separate exhaust process for the internal vacuum, the manufacturing process is difficult, and since the exhaust tube 95 formed for the exhaust is protruded, there is a difficulty in mass loading.

In order to overcome this disadvantage, the applicant of the present invention in the KR 10-2007-0101888 to ensure that the sealing bonding of the plate glass and the plate glass in the vacuum atmosphere and the process of discharging the air inside the same at the same time to separate the exhaust process and the exhaust hole and It provides a vacuum glass manufacturing method that does not require the step of forming the exhaust tube.

Although the vacuum glass manufactured by this manufacturing method is clearly easy to manufacture and mass-load, in the case of large glass having a size of 2m to 3m, variations in glass itself, that is, deflexion, are caused by internal and external temperature variations. Deformation occurs and this warpage variation causes cracking, resulting in cracking and cracking of the glass. In addition, the larger the temperature deviation, and the larger the glass size, the greater the difference in thermal expansion between the glass, which is likely to be a serious problem.

The present invention has been made to solve the above-mentioned problems, the functional plate glass of any one of a soft type low-E glass, a color conversion (electrochromatic) glass, a reflective glass, or a glass formed with a solar cell substrate Even if the function is not lost even though the temperature difference between both ends of the vacuum glass is large, and the difference in thermal expansion degree of both glass is large, the sheet metal is easily deflected and expanded due to its shape so that it is deformed and broken. It is to provide a vacuum glass which prevents a crack phenomenon.

In addition, the present invention is to provide a vacuum glass that does not require a separate exhaust process and the formation step of the exhaust hole and the exhaust tube so that the sealing bonding of the plate glass and the plate glass in the vacuum atmosphere and the step of discharging the air inside the same at the same time. There is another purpose.

Vacuum glass manufacturing method according to the present invention for solving the above problems, the top glass and the bottom glass is spaced at regular intervals and sealed so that the inside is in a vacuum state, the top glass and the bottom glass is different from each other due to the vacuum A vacuum glass manufacturing method comprising a micro spacer provided as an inner space so as not to adhere, the method comprising: a first step of preparing the cleaned lower plate glass; A second step of forming a plurality of spacers on an upper surface of the lower glass; A third step of seating the cleaned upper glass on the spacer; A fourth step of mounting a frit seal member formed of low melting solder glass on one surface of the upper glass and the lower glass; A fifth step of mounting a thin metal plate on an upper surface of the frit seal member; A sixth step of aligning the resultant through the steps and fixing each part with a clamp so that the alignment is not disturbed; A seventh step of injecting the fixed result into the vacuum chamber and then evacuating and heating the chamber; An eighth step of cooling the metal sheet portion after frit melt sealing; And a ninth step of cooling to room temperature after the exhaust port is sealed when there is an exhaust port in the lower plate glass.

Here, between the fifth step and the sixth step, further comprising the step of seating the formed frit seal member on the seal portion on the metal sheet and seating the cover glass on the frit seal member do.

Here, between the fourth step and the fifth step, further comprising the step of seating the height correction glass on the upper surface of the glass plate upper frit seal member and the frit seal member on the upper surface of the height correction glass; .

At this time, between the fifth step and the sixth step, the frit seal member and the cover glass formed on the seal portion on the metal foil is sequentially stacked.

In addition, the upper glass and the lower glass is spaced at regular intervals and the inside is sealed to be in a vacuum state, the vacuum glass including a micro spacer provided in the inner space so that the upper glass and the lower glass does not stick to each other due to the vacuum In the manufacturing method, the first step of preparing the cleaned lower plate glass; A second step of forming a plurality of spacers on the upper surface of the lower glass; A third step of mounting a frit seal member formed of low melting point solder glass on one surface of the lower plate glass; Step 04 for mounting the thin metal plate on the upper surface of the frit seal member; A fifth step of mounting a frit seal member on the metal sheet and the upper glass seal; A sixteenth step of seating the cleaned upper glass on the result of the fifth step; A seventh step of aligning a result of the steps and fixing each part with a clamp so that the alignment is not disturbed; An eighth step of injecting the fixed result into the vacuum chamber and then evacuating and heating the chamber; A ninth step of cooling the metal sheet portion after frit melt sealing; And a tenth step of cooling to room temperature after sealing the exhaust port if there is an exhaust port in the lower plate glass.

The method may further include forming a cover glass on the frit seal member positioned at both ends of the lower plate glass between the sixth and seventh steps.

Vacuum glass according to the present invention for solving the above problems, the upper glass and the lower glass to be spaced apart at regular intervals and sealed so that the inside is in a vacuum state, so that the upper glass and the lower glass does not stick to each other due to the vacuum In the vacuum glass manufacturing method comprising a micro-spacer provided as an inner space, further comprising a frit seal member, a siler getter located between one end of the upper glass and the lower glass, further comprising a getter lead wire extending to the getter Characterized in that.

In addition, when the exhaust port is formed on one lower surface of the lower plate glass, the exhaust port sealing member is further installed in the lower direction adjacent to the exhaust port, characterized in that the heat compression.

At this time, at least one of the plate glass is characterized in that any one of the glass, the tempered glass, Roy glass, reflective glass, color conversion glass, and the solar cell substrate is formed.

In addition, at least one inner surface of the upper glass and the lower glass is characterized in that further forming a functional thin film layer susceptible to oxidation of the atmospheric pressure process.

In addition, at least one outer surface of the upper glass and the lower glass is further characterized in that the functional thin film layer vulnerable to the oxidation of the atmospheric pressure process, and the outside of the functional thin film layer to form a multi-layered structure.

As described above, the vacuum glass according to the present invention is applied to any one of soft type low-E glass, electrochromatic glass, reflective glass, or glass on which a solar cell substrate is formed. Even if the function is not lost, the temperature difference between the two ends of the vacuum glass is large, and even though the difference in thermal expansion between the two glasses is large, the sheet metal, which is easily contracted and expanded, is deformed and cracked due to absorption. ) Increases durability by preventing occurrence of phenomena and has the effect of extending stability and lifespan.

In addition, the vacuum glass according to the present invention has the effect of making the process simpler and easier since there is no need to perform a separate exhaust process, and thus forming the exhaust hole and the exhaust tube or forming the exhaust tube.

In addition, the vacuum glass according to the present invention, even if there is no exhaust hole and exhaust tube or there is an exhaust hole, the surface is flattened due to the absence of the exhaust tube, so that the mass can be loaded more stably. There is.

1 is a perspective view (a) and a cross-sectional view (b) of a vacuum glass according to the prior art,

2 and 3 are cross-sectional views showing a first embodiment according to the present invention.

4 and 5 are cross-sectional views showing a second embodiment according to the present invention.

6 and 7 are cross-sectional views showing a third embodiment according to the present invention.

8 and 9 are cross-sectional views showing a fourth embodiment according to the present invention.

10 to 13 are cross-sectional views showing a fifth embodiment according to the present invention.

14 and 15 are cross-sectional views showing a sixth embodiment according to the present invention.

16 to 18 are cross-sectional views showing a seventh embodiment according to the present invention.

19 is a sectional view showing an eighth embodiment according to the present invention;

20 is a cross-sectional view showing a ninth embodiment according to the present invention.

21 to 23 is a view showing the principle of the metal sheet and various description

110: top glass 120: bottom glass

130: cover glass 140: height correction glass

200: frit seal member 300: metal sheet

400: getter 500: spacer

610: exhaust hole 620: exhaust port sealing member

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in more detail as follows.

2 and 3 are a cross-sectional view showing a first embodiment according to the present invention, Figures 4 and 5 are a cross-sectional view showing a second embodiment according to the present invention, Figure 6 and 7 is a third view according to the present invention 8 and 9 are cross-sectional views showing a fourth embodiment according to the present invention, FIGS. 10 to 13 are cross-sectional views showing a fifth embodiment according to the present invention, FIGS. 14 and 15. 16 is a cross-sectional view showing a sixth embodiment according to the present invention, FIGS. 16 to 18 are cross-sectional views showing a seventh embodiment according to the present invention, and FIG. 19 is a cross-sectional view showing an eighth embodiment according to the present invention. 20 is a sectional view showing a ninth embodiment according to the present invention, Figure 21 to Figure 23 is a view showing the principle of the metal sheet and various description.

First, the manufacturing method for this is as follows.

As shown in FIG. 2, in the first embodiment, a first step of preparing the cleaned lower platen glass 120 is first performed, and a second spacer 500 is formed on the upper surface of the lower platen glass 120. Carry out the steps. Subsequently, a third step of seating the cleaned upper plate glass 110 on the upper surface of the spacer 500 and a frit seal formed of low melting solder glass on one surface of the upper plate glass 110 and the lower plate glass 120 are performed. A fourth step of seating the member 200, a fifth step of seating the thin metal plate 300 on the upper surface of the frit seal member 200, the alignment of the resultant through the above steps and each part with a clamp so that the alignment is not disturbed A sixth step of fixing, the fixed step of inserting the resultant into the vacuum chamber, and a seventh step of performing a chamber evacuation and heating process, an eighth step of cooling the metal thin plate 300 after the frit melt sealing, and the lower plate If the exhaust port 610 is present in the glass 120, the ninth step of cooling the air temperature to room temperature after sealing the exhaust port is continuously performed.

In the seventh step, by heat-compressing in the vacuum atmosphere inside the vacuum chamber to exhaust the gas therein and at the same time, the sealing bonding of the vacuum through the sealing bonding of the upper and lower panes 11 and 120 and the metal thin plate 300 is made easy. To lose.

3 is the same as in the first embodiment except that the exhaust port 610 is not provided in the lower plate 120 of the first embodiment.

As shown in FIG. 4, in the second embodiment, between the fifth and sixth steps, the frit seal member 200 seated on the seal portion on the metal thin plate 300 is seated and the frit seal is formed. The method may further include mounting the cover glass 130 on the member 200.

FIG. 5 is the same as the second embodiment except for the case where the exhaust port 610 is not present in the lower glass 120 of the second embodiment.

As shown in FIG. 6, in the first embodiment, between the fourth step and the fifth step, the height correction glass 140 is disposed on the upper surface of the frit seal member 200. And further comprising the step of seating the frit seal member 200 on the upper surface of the height correction glass (140).

FIG. 7 is the same as the third embodiment except for the case where the exhaust port 610 is not present in the lower plate glass 120.

According to the third embodiment, it is possible to reduce the overall thickness of the vacuum glass 100 manufactured according to the application of the height correction glass 140, it is possible to slim, the thin metal plate 300 and the frit seal member 200 ) The attaching process is easier than the first embodiment.

As shown in FIG. 8, the fourth embodiment includes the frit seal member 200 formed in a seal portion on the metal foil 300 between the fifth and sixth steps in the first embodiment. Laminating the cover glass 130 in sequence.

FIG. 9 is the same as the fourth embodiment except that the exhaust port 610 is not present in the lower glass of the fourth embodiment.

Here, the frit seal member 200 is preferably a binder and gas contained in the frit to be a raw material is removed and degassed.

For example, the degassed frit seal member 200 puts a frit in the form of powder or paste into a crucible or jig in a vacuum chamber, and is heated to perform degassing and debinding. It is produced by molding into a predetermined shape in the state of fluidity. That is, in order to manufacture the frit seal member 200, a flowable frit is extruded through a nozzle and molded in a solder form. Alternatively, the frit seal member 200 is manufactured by pouring a frit in a fluid state into a molding die and molding. Accordingly, the frit seal member 200, which is an adhesive low melting point solder glass, may be prepared. In this case, the shape of the frit seal member 200 is not limited to solder.

In this case, the metal thin plate 300 is composed of a thin plate structure formed of a metal alloy, which is the plate glass is deformed due to thermal expansion, but fine in the case of the plate glass in the high temperature environment of the upper plate glass 110 and the lower plate glass 120 This is to prevent deflection or cracking in advance by creating a space that can accommodate such a case.

And the metal thin plate 300 is composed of a metal alloy component, in this case, preferably 52% iron (FE), nickel (NI) 48% component metal alloy, or iron (FE) 54%, nickel (NI) Prepared with 46% component metal alloy. In addition, the metal thin plate 300 is a flexible metal strip shape, the coefficient of thermal expansion is configured to be the same or very similar to the plate glass, it is preferable to prevent the bending (deflexion) or crack (crack) phenomenon of the plate glass. Do.

In this case, the metal thin plate 300 has a flexible flexibility in a metal thin plate shape and is configured by adjusting the metal alloy component so that the thermal expansion coefficient with glass is similar.

In addition, in the method of manufacturing the vacuum glass 100 according to the present invention, it is preferable to further include the step by repeating the step if it is not appropriate to determine whether the number of plate glass included in the resultant in the metal thin plate bonding step is appropriate.

Subsequently, the alignment and fixing step of aligning the resultant of the bonding step of the thin metal plate 300 and fixing the alignment is not disturbed.

In the vacuum glass manufacturing process, at least one of the

plate glasses

110 and 120 may be formed of any one of tempered glass, Roy glass, reflective glass, color conversion glass, and a glass on which a solar cell substrate is formed.

In addition, the micro spacer 500 is intended to prevent the problem that the facing glass is bent and stuck or broken due to the vacuum when the space between the glass and the plate glass is sealed with a vacuum as in the conventional vacuum glass. Therefore, the arrangement shape of the micro spacer 500 can be freely deformed within a range that can prevent the bending of the plate glass (110, 120).

In the heating and pressing step, the vacuum atmosphere is formed by a vacuum chamber capable of evacuating the vacuum degree of 10 ^-2 Torr to 10 ^-7 Torr, for example, a heater capable of heating up to 500 ℃ and It is equipped with a gas inlet valve to increase the pressure. Here, it is obvious that the higher the degree of vacuum inside the vacuum chamber, the higher quality vacuum glass can be manufactured.

When the two layers of glass are introduced into the vacuum chamber with the air inside thereof due to alignment and fixation facing each other in the atmospheric state, the vacuum chamber exhausts the gas introduced therein as much as the target value. Start the heater. At this time, by forming an exhaust hole in one of the two panes of the plate glass, the air inside is sufficiently escaped to form a high vacuum. Preferably the degree of vacuum between the pane and the pane is from 10 ^-3 Torr to 10 ^-6 Torr.

At the same time, when the

panes

110 and 120 reach a predetermined temperature as the heater is operated, fluidity is generated in the plurality of frit seal members 200 attached to the

panes

110 and 120. At this time, if all the plate glass (110, 120) is pressed tightly for a predetermined time using a clamp (clamp) that can provide a separate pressing force, the frit seal member 200 has a fluidity to the side instead of lowering the height While spreading, the

plate glass

110 and 120 are sealed to be bonded to each other at a uniform thickness in a horizontally inward direction from left and right side edges thereof. Then, the temperature in the vacuum chamber is lowered to complete the sealing bonding process.

Here, the temperature in the vacuum chamber heated by the heater is different depending on the material of the frit seal member 200, but is usually performed at about 270 ℃ to 470 ℃, preferably 420 ℃ or more, the holding time Usually 15 minutes is enough. Obviously, shorter times are required at higher temperatures and longer at lower temperatures.

On the other hand, as shown herein is an embodiment without a getter, showing the use of two or three sheets of glass, respectively, to aid in the understanding of the description, limiting the number of plate glass used in the vacuum glass manufacturing method according to the present invention It is not.

On the other hand, the frit seal member 200 is shown in a plate shape, but is not limited to this, and may be all in the shape of a polygonal column such as a square pillar, preferably the alignment of the plate glass (110,120) and the metal thin plate (300) And a shape that is easy to manufacture.

In the above-described embodiment, the shape of overlapping two layers of plate glass is disclosed, but it will be apparent that the same applies to the case where three or more plate glass are laminated to make a vacuum glass.

On the other hand, in the above embodiment in the plate glass located on at least one side of the both sides of the resultant may be used that is a hole, which means an embodiment of forming a separate exhaust port 610.

That is, when it is determined that the vacuum degree between the plate glass 110 and the plate glass 120 is not sufficient, the exhaust hole 610 further exhausts the inner air to achieve a target value, which is larger than the hole 610. It is preferable to block the outside and the space between the plate glass (110, 120) by blocking the hole 610 with the exhaust port sealing member 620 and heat compression. In this case, it is preferable to use a degassed frit molded article (not shown) as the medium for bonding the lid glass 130 to the frit seal member 200.

Hereinafter, another embodiment will be described with reference to FIGS. 10 to 15.

First, the first step of preparing the cleaned lower platen glass 120 is performed, and then the second step of forming a plurality of spacers 500 on the upper surface of the lower platen glass 120 is performed. Subsequently, in step 03 of mounting the frit seal member 200 formed of low melting point solder glass on one surface of the lower plate glass 120, the metal thin plate 300 is seated on the top surface of the frit seal member 200. Step 04, the step of mounting the frit seal member 200 in the metal thin plate 300 and the top glass 110, the seal portion (Seoul) 05, the top glass 110 cleaned in the result of the step 05 Step (06) for seating, step (07) for aligning the resultant through the above steps and fixing each part with a clamp so that the alignment is not disturbed, and evacuating and heating the chamber after inserting the fixed result into the vacuum chamber. The eighth step, the twelfth step of cooling the metal thin plate 300 after the frit melt sealing, and if the exhaust port 610 is in the lower plate glass 120, the tenth step of cooling to room temperature after sealing the exhaust port continuously To be carried out.

FIG. 6C illustrates an embodiment in which the shape of the metal thin plate 300 is opened and one side is tapered and converged like a pencil lead. 6d shows a case where there is no exhaust port. Various configuration of such a thin metal plate will be described in more detail in FIG.

In addition, as shown in FIG. 7, the cover glass 130 is further formed on the frit seal member 200 positioned on both ends of the lower plate 120 between the sixth and seventh steps. do.

Here, the basic manufacturing method is the same as the first to fourth embodiments, the material is also the same, detailed description thereof will be omitted.

Next, a seventh embodiment, which is another embodiment, will be described with reference to FIGS. 16 to 18. Here, the configuration using a getter 410 or a getter 410 and a getter line 420 is disclosed, which additionally adsorbs the gas desorbed by expansion and contraction during the use of vacuum glass for a long time. It is a configuration to keep it continuously. In addition, it is possible to simply verify the vacuum failure or complete destruction caused by fine leakage. For example, when a certain amount (about 20 watts) of power is supplied to the getter 410, when the vacuum degree is good, the getter 410 rises in temperature to turn red. However, when the leakage occurs from the outside and the vacuum is broken or poor, the getter 410 is oxidized to black and burned out without turning red.

On the other hand, in the case of having the getter line 420 can be heated by connecting a power supply capable of simply supplying current from the outside, and the getter line 420 can be heated by a laser or an induction heating device.

When the getter 410 is activated by supplying power for high temperature heating, the getter 410 material may be evaporated and coated in a vacuum glass to apply a non-evaporable getter that does not leave a mark. . In this case, the non-evaporable getter is disposed inside the frit seal member 200 disposed on the plate glass, and a current lead line (getter line) for supplying power to the non-evaporable getter is formed from the non-evaporable getter. By being arranged to cross 200, it is possible to receive power from the outside of the finished vacuum glass later.

Although it appears that the vacuum glass structure in which the keter and / or getterline is shown is limited, this configuration is of course applicable in all embodiments according to the present invention.

19 and 20 show the eighth and ninth embodiments according to the present invention.

That is, at least one inner surface of the upper glass 110 and the lower glass 120 is to form a functional thin film layer 150 vulnerable to oxidation of the atmospheric pressure process. In this case, the functional thin film layer 150 may be applicable to Roy glass, color conversion glass, and the like.

Alternatively, a functional thin film layer 150 vulnerable to oxidation of an atmospheric pressure process may be further formed on at least one outer surface of the upper glass 110 and the lower glass 120, and the outer surface of the functional thin film layer 150 may be formed in a multilayered structure. Could be This is easy to UV-block and is a structure for improving heat insulation. To this end, the bottom of the structure is finished using the multi-layered bottom glass 170 and the multi-layered support 250 for supporting the media is mediated.

On the other hand, the plate glass (110,120) is generally used a transparent glass widely used, but is not limited to this, at least one of the glass according to the purpose of tempered glass, low-E glass (low-E glass), reflective glass, The functional plate glass of any one of electrochromatic glass or glass on which a solar cell substrate is formed may be used.

21 to 23 are views illustrating reasons for inserting the thin metal plate 300 and principles for preventing bending and cracking of the plate glass according to various embodiments of the present disclosure.

As shown, the thin metal plate 300 is to prevent the cracks and warpage of the plate glass by causing the shrinkage in the other portions when the portion is expanded, the shape of the metal thin plate 300 is not only in the shape of bent in a square But it may be a semi-circle, straight, and may be configured in various shapes.

In particular, the vacuum glass manufacturing method according to the present invention, as the plate glass can be applied to the soft (roy) type of glass (excellent heat radiation shielding and heat insulation excellent) than the hard (hard type) Roy glass. This is because there is no fear that the Ag metal coating film of the soft Roy glass is oxidized because the sealing bonding process due to the hot pressing of the plate glass and the plate glass is performed in a vacuum atmosphere.

In addition, the vacuum glass manufacturing method according to the present invention is functionally lost due to the oxidation of the metal coating film and other characteristic changes in the glass with the color conversion glass, the reflective glass, and the solar cell substrate on which the metal coating film is formed, as with the soft Roy glass. Of course, it can be applied within the range without problems.

On the other hand, the glass on which the solar cell substrate is formed may become translucent or opaque due to the formation of the solar cell substrate. In this case, the glass on which the solar cell substrate is formed is distributed only to a part of the entire area of the vacuum glass to be manufactured so that the view through this is achieved. It is desirable to secure.

In addition, according to another aspect of the present invention, it is possible to present a vacuum glass produced by the vacuum glass manufacturing method according to the present invention described above.

As described above, in the detailed description of the present invention has been described with respect to preferred embodiments of the present invention, those skilled in the art to which the present invention pertains various modifications without departing from the scope of the invention Of course it is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the equivalents as well as the claims to be described later.

The vacuum glass according to the present invention does not lose its function even when the functional sheet glass of soft type low-E glass, electrochromatic glass, reflecting glass, or glass on which a solar cell substrate is formed is applied. However, even if the temperature difference between the two ends of the vacuum glass is large and the difference in the thermal expansion degree of both glasses is large, the sheet metal having the shape of easy expansion and contraction is absorbed by the metal sheet so that the deflection and cracking do not occur. This increases the durability and has the effect of extending stability and lifespan, and there is no need to perform a separate exhaust process, and thus forming the exhaust hole and the exhaust tube or forming the exhaust tube, thereby simplifying and facilitating the process. .

In this respect, the vacuum glass according to the present invention increases durability, can be used in various fields, and can be said to be an effective invention in general use.

Claims

A method of manufacturing a vacuum glass including a micro spacer provided with an inner space such that the upper glass and the lower glass are spaced at regular intervals and sealed to have a vacuum inside thereof, so that the upper glass and the lower glass do not stick to each other due to vacuum. To

A first step of preparing the cleaned lower platen glass;

A second step of forming a plurality of spacers on an upper surface of the lower glass;

A third step of seating the cleaned upper glass on the spacer;

A fourth step of mounting a frit seal member formed of low melting solder glass on one surface of the upper glass and the lower glass;

A fifth step of mounting a thin metal plate on an upper surface of the frit seal member;

A sixth step of aligning the resultant through the steps and fixing each part with a clamp so that the alignment is not disturbed;

A seventh step of injecting the fixed result into the vacuum chamber and then evacuating and heating the chamber;

An eighth step of cooling the metal sheet portion after frit melt sealing; And

If there is an exhaust port in the lower plate glass sealing the exhaust port after the ninth step; vacuum glass manufacturing method comprising a.
The method of claim 1,

Between the fifth step and the sixth step, the vacuum glass further comprising the step of seating the molded frit seal member on the seal portion on the metal sheet and seating the lid glass on the frit seal member Manufacturing method.
The method of claim 1,

Between the fourth step and the fifth step, the step of mounting the height correction glass on the upper surface of the glass fritsil member upper plate and the step of mounting the frit seal member on the upper surface of the height compensation glass Way.
The method of claim 3,

Between the fifth step and the sixth step, the vacuum glass manufacturing method characterized in that the laminated frit seal member and the cover glass in order on the seal portion on the metal sheet in sequence.
A method of manufacturing a vacuum glass including a micro spacer provided with an inner space such that the upper glass and the lower glass are spaced at regular intervals and sealed to have a vacuum inside thereof, so that the upper glass and the lower glass do not stick to each other due to vacuum. To

A first step of preparing the cleaned lower platen glass;

A second step of forming a plurality of spacers on the upper surface of the lower glass;

A third step of mounting a frit seal member formed of low melting point solder glass on one surface of the lower plate glass;

Step 04 for mounting the thin metal plate on the upper surface of the frit seal member;

A fifth step of mounting a frit seal member on the metal sheet and the upper glass seal;

A sixteenth step of seating the cleaned upper glass on the result of the fifth step;

A seventh step of aligning a result of the steps and fixing each part with a clamp so that the alignment is not disturbed;

An eighth step of injecting the fixed result into the vacuum chamber and then evacuating and heating the chamber;

A ninth step of cooling the metal sheet portion after frit melt sealing; And

And a tenth step of cooling to room temperature after sealing the exhaust port if the exhaust plate is provided in the lower plate glass.
The method of claim 5,

And forming a cover glass on the frit seal member positioned at both ends of the lower plate glass between the sixteenth and seventeenth steps.
Vacuum glass, characterized in that produced by the manufacturing method according to any one of claims 1 to 6.
The method of claim 7, wherein

Vacuum glass, characterized in that further installing a getter between the frit seal member located between one end of the upper glass and the lower glass.
The method of claim 8,

Vacuum glass, characterized in that further installed by extending the getter line to the getter.
The method of claim 7, wherein

When the exhaust port is formed on one lower surface of the lower plate glass, the vacuum glass, characterized in that the exhaust port sealing member is further provided in the lower direction adjacent to the exhaust port and heat-compression bonding.
The method of claim 7, wherein

At least one of the plate glass is a glass, characterized in that any one of tempered glass, Roy glass, reflective glass, color conversion glass, and a glass formed with a solar cell substrate.
The method of claim 10,

At least one inner surface of the upper glass and the lower glass vacuum glass, characterized in that further forming a functional thin film layer susceptible to oxidation of the atmospheric pressure process.
The method of claim 10,

And at least one outer surface of the upper glass and the lower glass to further form a functional thin film layer vulnerable to oxidation in an atmospheric pressure process, and to form a structure in which the outside of the functional thin film layer is multilayered again.