WO2020203009A1 - ガラスパネルユニット及びガラスパネルユニットの製造方法 - Google Patents
ガラスパネルユニット及びガラスパネルユニットの製造方法 Download PDFInfo
- Publication number
- WO2020203009A1 WO2020203009A1 PCT/JP2020/009300 JP2020009300W WO2020203009A1 WO 2020203009 A1 WO2020203009 A1 WO 2020203009A1 JP 2020009300 W JP2020009300 W JP 2020009300W WO 2020203009 A1 WO2020203009 A1 WO 2020203009A1
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- WIPO (PCT)
- Prior art keywords
- panel
- space
- hole
- glass
- partition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/677—Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes; Cleaning the gap between the panes
- E06B3/6775—Evacuating or filling the gap during assembly
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/6612—Evacuated glazing units
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/663—Elements for spacing panes
- E06B3/66304—Discrete spacing elements, e.g. for evacuated glazing units
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/67—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light
- E06B3/6715—Units comprising two or more parallel glass or like panes permanently secured together characterised by additional arrangements or devices for heat or sound insulation or for controlled passage of light specially adapted for increased thermal insulation or for controlled passage of light
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
- E06B3/673—Assembling the units
- E06B3/67339—Working the edges of already assembled units
- E06B3/6736—Heat treatment
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/02—Wings made completely of glass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/249—Glazing, e.g. vacuum glazing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/22—Glazing, e.g. vaccum glazing
Definitions
- This disclosure relates to a glass panel unit and a method for manufacturing the glass panel unit.
- Patent Document 1 discloses a double glazing provided with a pair of flat glass facing each other at a predetermined interval and a method for producing the same.
- the temperature is set to be equal to or higher than the softening point temperature of the glass frit used for the frit seal and the partition wall as the first melting step.
- the peripheral portion of the pair of flat glass is sealed to form a sealable space.
- a second melting step is performed to heat the pair of flat glass and the glass frit, and the exhaust holes are sealed.
- the double glazing since the through hole is not formed, for example, the double glazing is attached to a fixed object such as a building or a transportation device, or a handle is attached to the double glazing, for example. It was difficult to remove and handle.
- An object of the present disclosure is to provide a glass panel unit and a method for manufacturing the glass panel unit, which can suppress the difficulty in handling due to the absence of through holes.
- the glass panel unit includes a first panel, a second panel, a seal, and a partition wall.
- the first panel includes a first glass plate.
- the second panel includes a second glass plate and is arranged so as to face the first panel.
- the seal is in the shape of a frame that airtightly joins the peripheral edges of the first panel and the second panel so as to form an internal space between the first panel and the second panel.
- the partition wall divides the internal space into a first space which is a closed decompression space and a second space spatially separated from the first space, so that the first panel and the second panel And are airtightly joined.
- the first panel has a first through hole formed at a position corresponding to the second space.
- the second panel has a second through hole formed at a position corresponding to the second space and at a position facing the first through hole.
- the method for manufacturing a glass panel unit includes an adhesive arranging step, a glass composite forming step, an internal space forming step, a decompression step, and a decompression space forming step.
- a first panel including a first glass plate and having a first through hole or a second panel including a second glass plate and having a second through hole is heat-bonded to be a seal and a partition later. This is the process of arranging the agent.
- the first panel and the second panel are arranged so as to face each other so that the first through hole and the second through hole face each other, and the first panel and the second panel are arranged so as to face each other.
- the internal space forming step is a step of heating the glass composite to melt the thermal adhesive to form the seal and the partition.
- the seal is in the shape of a frame that airtightly joins the peripheral edges of the first panel and the second panel so as to form an internal space between the first panel and the second panel.
- the partition includes a first space in which the internal space is sealed except for an exhaust path, and a second space that is spatially separated from the first space and communicates with the first through hole and the second through hole. It has the exhaust path that airtightly joins the first panel and the second panel and allows the first space and the second space to pass therethrough so as to partition the space.
- the depressurizing step is a step of discharging the gas in the first space through the exhaust path to depressurize the first space.
- the first space was sealed by deforming the partition and closing the exhaust path while maintaining the decompression state of the first space, and the first space was sealed. This is a process of creating a decompression space.
- the method for manufacturing the glass panel unit according to another embodiment of the present disclosure includes an adhesive arranging step, a glass composite forming step, an internal space forming step, a decompression step, a decompression space forming step, and a through hole forming step.
- the adhesive arranging step is a step of arranging a thermal adhesive which will be a seal and a partition later on a first panel including a first glass plate and having a first through hole or a second panel including a second glass plate. is there.
- the glass composite forming step is a step of arranging the first panel and the second panel facing each other to form a glass composite containing the first panel, the second panel, and the thermal adhesive. is there.
- the internal space forming step is a step of heating the glass composite to melt the thermal adhesive to form the seal and the partition.
- the seal is in the shape of a frame that airtightly joins the peripheral edges of the first panel and the second panel so as to form an internal space between the first panel and the second panel.
- the partition divides the internal space into a first space that is sealed except for an exhaust path and a second space that is spatially separated from the first space, so that the first panel and the second space are separated. It has the exhaust path that airtightly joins the panel and allows the first space and the second space to pass through.
- the depressurizing step is a step of discharging the gas in the first space through the exhaust path to depressurize the first space.
- the through-hole forming step is a step of forming a second through-hole at a position corresponding to the second space of the second panel and at a position facing the first through-hole.
- FIG. 1 is a schematic vertical sectional view of the glass panel unit of the first embodiment.
- FIG. 2 is a schematic plan view of the glass panel unit of the above, which is partially broken.
- FIG. 3 is a schematic vertical sectional view of the assembly of the glass panel unit of the above.
- FIG. 4 is a schematic plan view of the same assembled product with a partially broken portion.
- FIG. 5 is an explanatory diagram of a method for manufacturing the glass panel unit of the same as above.
- FIG. 6 is an explanatory diagram of a method for manufacturing the glass panel unit of the above.
- FIG. 7 is an explanatory diagram of a manufacturing method of the glass panel unit of the same as above.
- FIG. 8 is a schematic vertical cross-sectional view of the same glass panel unit with a handle attached.
- FIG. 9A is an enlarged schematic plan view of a part of the glass panel unit of the second embodiment.
- FIG. 9B is a schematic vertical sectional view of the same glass panel unit.
- the glass panel unit and the method for manufacturing the glass panel unit according to the present disclosure will be described based on the embodiments.
- the embodiment of the glass panel unit and the method for manufacturing the glass panel unit according to the present disclosure is not limited to the following embodiment, and various changes can be made without departing from the technical idea of the present disclosure. Is.
- the glass panel unit 10 of the first embodiment is a vacuum heat insulating glass unit.
- the vacuum insulating glass unit is a kind of double glazing panel including at least a pair of glass panels, and has a decompression space (or a vacuum space) between the pair of glass panels.
- the glass panel unit 10 includes a first panel 20, a second panel 30, a seal 40, a partition wall 42, and a decompression space 50.
- the glass panel unit 10 further includes a gas adsorbent 60 and a plurality of pillars 70.
- the seal 40 airtightly joins the peripheral edges of the first panel 20 and the second panel 30 so as to form an internal space 500 (including a decompression space 50) between the first panel 20 and the second panel 30. It is a frame-shaped object.
- the partition wall 42 divides the internal space 500 into a first space 510, which is a closed decompression space 50, and a second space 520 spatially separated from the first space 510, so that the first panel 20 and the first panel 42 are separated from each other. 2
- the panel 30 is airtightly joined.
- the first panel 20 has a first through hole 25 formed at a position corresponding to the second space 520.
- the second panel 30 has a second through hole 35 formed at a position corresponding to the second space 520 and at a position facing the first through hole 25.
- the partition wall 42 surrounds the first through hole 25 and the second through hole 35 when viewed in the opposite direction of the first panel 20 and the second panel 30.
- the glass panel unit (finished product) 10 is obtained by performing a predetermined process on the assembled product 100 shown in FIGS. 3 and 4.
- the predetermined processing will be outlined.
- the assembly 100 includes a first panel 20, a second panel 30, a first portion 410 of the thermal adhesive, an internal space 500, a second portion 420 of the thermal adhesive, the first space and the second. It includes an exhaust path 600 for passing through a space, an exhaust port 700, a gas adsorbent 60, and a plurality of pillars 70.
- the first panel 20 includes a first glass plate 21 that determines the planar shape of the first panel 20 and a coating 22.
- the first glass plate 21 is a rectangular flat plate, and has a first surface (lower surface in FIG. 3) and a second surface (upper surface in FIG. 3) parallel to each other on both sides in the thickness direction. Both the first surface and the second surface of the first glass plate 21 are flat surfaces.
- the material of the first glass plate 21 is, for example, soda lime glass, high strain point glass, chemically tempered glass, non-alkali glass, quartz glass, neoserum, and physically tempered glass.
- the coating 22 is formed on the first surface of the first glass plate 21.
- the coating 22 is an infrared reflective film.
- the coating 22 is not limited to the infrared reflective film, and may be a film having desired physical properties.
- the first panel 20 may be composed of only the first glass plate 21. In short, the first panel 20 includes a first glass plate 21.
- the second panel 30 includes a second glass plate 31 that determines the planar shape of the second panel 30.
- the second glass plate 31 is a rectangular flat plate, and has a first surface (upper surface in FIG. 3) and a second surface (lower surface in FIG. 3) parallel to each other on both sides in the thickness direction. Both the first surface and the second surface of the second glass plate 31 are flat surfaces.
- the plane shape and plane size of the second glass plate 31 are the same as those of the first glass plate 21 (that is, the plane shape of the second panel 30 is the same as that of the first panel 20). Further, the thickness of the second glass plate 31 is the same as that of the first glass plate 21, for example.
- the material of the second glass plate 31 is, for example, soda lime glass, high strain point glass, chemically tempered glass, non-alkali glass, quartz glass, neoserum, and physically tempered glass.
- the second panel 30 is composed of only the second glass plate 31. That is, the second glass plate 31 is the second panel 30 itself.
- the second panel 30 may have a coating on either surface.
- the coating is a film having desired physical properties such as an infrared reflective film.
- the second panel 30 is composed of the second glass plate 31 and the coating.
- the second panel 30 includes a second glass plate 31.
- the second panel 30 is arranged so as to face the first panel 20. Specifically, the first panel 20 and the second panel 30 are arranged so that the first surface of the first glass plate 21 and the first surface of the second glass plate 31 are parallel to each other and face each other.
- the first portion 410 of the thermal adhesive is arranged between the first panel 20 and the second panel 30, and airtightly joins the first panel 20 and the second panel 30.
- the first portion 410 is a portion that will later become the seal 40.
- an internal space 500 surrounded by the first portion 410, the first panel 20, and the second panel 30 is formed.
- the first portion 410 is formed of a thermal adhesive (a first thermal adhesive having a first softening point).
- the first thermal adhesive is, for example, glass frit.
- the glass frit is, for example, a low melting point glass frit.
- the low melting point glass frit is, for example, a bismuth-based glass frit, a lead-based glass frit, or a vanadium-based glass frit.
- the first portion 410 is arranged in a rectangular frame shape in a plan view.
- the size of the first portion 410 in a plan view is smaller than that of the first glass plate 21 and the second glass plate 31.
- the first portion 410 is formed along the outer circumference of the upper surface of the second panel 30 (the first surface of the second glass plate 31). That is, the first portion 410 is formed so as to surround almost the entire region on the second panel 30 (the first surface of the second glass plate 31).
- the first panel 20 and the second panel 30 are formed by the first portion 410 by temporarily melting the first thermal adhesive of the first portion 410 at a predetermined temperature (first melting temperature) Tm1 equal to or higher than the first softening point. It is airtightly joined.
- first melting temperature first melting temperature
- the second part 420 of the thermal adhesive is arranged in the internal space 500.
- the internal space 500 is a closed space, that is, a first space 510 that is sealed to become a decompression space 50 when the glass panel unit 10 is completed, and an exhaust space, that is, a second space that communicates with the exhaust port 700. It is a partition that divides into 520.
- the second portion 420 is a portion that will later become the partition wall 42.
- the second portion 420 is formed so that the first space 510 is larger than the second space 520.
- the second portion 420 is formed of a thermal adhesive (a second thermal adhesive having a second softening point).
- the second thermal adhesive is, for example, glass frit.
- the glass frit is, for example, a low melting point glass frit.
- the low melting point glass frit is, for example, a bismuth-based glass frit, a lead-based glass frit, or a vanadium-based glass frit.
- the second thermal adhesive is the same as the first thermal adhesive, and the second softening point and the first softening point are equal.
- the exhaust port 700 is a hole connecting the second space 520 and the external space.
- the exhaust port 700 is used to exhaust the first space 510 via the second space 520 and the exhaust path 600.
- the exhaust port 700 is formed on the second panel 30 so as to connect the second space 520 and the external space. Specifically, the exhaust port 700 is located at a corner portion of the second panel 30.
- the exhaust port 700 is provided on the second panel 30, but the exhaust port 700 may be provided on the first panel 20.
- the second through hole 351 described later also serves as the exhaust port 700.
- the gas adsorbent 60 is arranged in the first space 510.
- the gas adsorbent 60 has an elongated shape, and is formed at the end portion of the second panel 30 in the longitudinal direction along the lateral direction of the second panel 30. That is, the gas adsorbent 60 is arranged at the end of the first space 510 (decompression space 50). By doing so, the gas adsorbent 60 can be made inconspicuous. Further, it is possible to prevent the gas adsorbent 60 from hindering the exhaust when the first space 510 is exhausted.
- the gas adsorbent 60 is used to adsorb unnecessary gas (residual gas, etc.).
- the unnecessary gas is, for example, the gas released from the first portion 410 and the second portion 420 when the first portion 410 and the second portion 420 are heated to the first melting temperature Tm1.
- the gas adsorbent 60 has a getter.
- the getter is a material having the property of adsorbing molecules smaller than a predetermined size.
- the getter is, for example, an evaporative getter.
- the evaporation type getter has a property of releasing adsorbed molecules when the temperature exceeds a predetermined temperature (activation temperature). Therefore, even if the adsorption capacity of the evaporative getter is reduced, the adsorption capacity of the evaporative getter can be restored by heating the evaporative getter to the activation temperature or higher.
- the evaporative getter is, for example, a zeolite or an ion-exchanged zeolite (eg, a copper ion-exchanged zeolite).
- the gas adsorbent 60 includes the powder of this getter. Specifically, the gas adsorbent 60 is formed by applying a solution in which the getter powder is dispersed. In this case, the gas adsorbent 60 can be made smaller. Therefore, the gas adsorbent 60 can be arranged even if the decompression space 50 is narrow.
- the plurality of pillars 70 are used to maintain the distance between the first panel 20 and the second panel 30 at a predetermined distance. That is, the plurality of pillars 70 function as spacers for maintaining the distance between the first panel 20 and the second panel 30 at a desired value.
- the plurality of pillars 70 are arranged in the first space 510. Specifically, the plurality of pillars 70 are arranged at the intersections of rectangular (square or rectangular) grids. For example, the distance between the plurality of pillars 70 is 2 cm. However, the size of the pillars 70, the number of pillars 70, the spacing between the pillars 70, and the arrangement pattern of the pillars 70 can be appropriately selected.
- the pillar 70 is formed using a transparent material. However, each pillar 70 may be formed using an opaque material as long as it is sufficiently small.
- the material of the pillar 70 is selected so that the pillar 70 is not deformed in the internal space forming step described later.
- the material of the pillar 70 is selected to have a softening point (softening temperature) higher than the first softening point of the first thermal adhesive and the second softening point of the second thermal adhesive.
- Such an assembly 100 exhausts the first space 510 at a predetermined temperature (exhaust temperature) Te through a path that can be exhausted to an external space, which is composed of an exhaust path 600, a second space 520, and an exhaust port 700.
- the first space 510 is designated as the decompression space 50.
- the exhaust temperature Te is higher than the activation temperature of the getter of the gas adsorbent 60.
- the decompression space 50 is surrounded by the seal 40 and the partition wall 42 by deforming the second portion 420 (see FIG. 4) to form a partition wall 42 that closes the exhaust path 600. That is, in the first embodiment, the seal 40 is the outer peripheral end of the decompression space 50, and the partition wall 42 is the inner peripheral end of the decompression space 50. Since the second portion 420 contains the second thermal adhesive, the second portion 420 can be deformed to form the partition wall 42 by locally heating and temporarily melting the second thermal adhesive. ..
- the second part 420 is deformed so as to block the exhaust path 600, as shown in FIG.
- the partition wall 42 obtained by deforming the second portion 420 in this way spatially separates the decompression space 50 from the second space 520.
- the seal 40 surrounding the decompression space 50 is composed of a portion 41 other than the partition wall 42 and a partition wall 42.
- the glass panel unit (finished product) 10 obtained in this manner includes a first panel 20, a second panel 30, a seal 40, a decompression space 50, and a second space 520.
- the gas adsorbent 60 and a plurality of pillars 70 are provided.
- the decompression space 50 is formed by exhausting the first space 510 through the second space 520 and the exhaust port 700.
- the decompression space 50 is the first space 510 whose degree of vacuum is equal to or less than a predetermined value.
- the predetermined value is, for example, 0.1 Pa. Since the decompression space 50 is completely sealed by the first panel 20, the second panel 30, and the seal 40, it is separated from the second space 520 and the exhaust port 700.
- the seal 40 completely surrounds the decompression space 50 and airtightly joins the first panel 20 and the second panel 30.
- the seal 40 has a frame shape and has a portion 41 that separates the external space and the first space 510 (spatial separation), and a partition wall 42 that separates the first space 510 and the second space 520.
- the partition wall 42 is a partition wall obtained by deforming the second portion 420.
- the method for manufacturing the glass panel unit 10 of the first embodiment includes at least an adhesive arranging step, a glass composite forming step, an internal space forming step, a decompression step, and a decompression space forming step. Further, other steps may be provided, but it is optional. This will be described in order below.
- the substrate forming step is a step of forming the first panel 20 and the second panel 30. Specifically, in the substrate forming step, for example, the first panel 20 and the second panel 30 are manufactured. Further, in the substrate forming step, the first panel 20 and the second panel 30 are washed as needed.
- a step of forming the first through hole 25, the second through hole 35, and the exhaust port 700 is executed.
- the first through hole 25 is formed at a position corresponding to the second space 520 of the first panel 20.
- a second through hole 35 is formed at a position corresponding to the second space 520 of the second panel 30.
- two second through holes 35, one second through hole 351 and the other second through hole 352 are formed (see FIG. 6).
- One of the second through holes 351 also serves as the exhaust port 700.
- the exhaust port 700 may be formed on the first panel 20. That is, the exhaust port 700 is formed in at least one of the first panel 20 and the second panel 30.
- the adhesive placement step is executed.
- the adhesive arranging step is a step of arranging the thermal adhesive on the first panel 20 or the second panel 30. Specifically, in the adhesive arranging step, a first portion 410 made of a thermal adhesive that will later become a seal 40 and a second portion 420 made of a thermal adhesive that will later become a partition wall 42 are formed on the second panel 30. To do.
- the material of the first portion 410 (first thermal adhesive) and the material of the second portion 420 (second thermal adhesive) are transferred to the second panel 30 (second glass plate) by using a dispenser or the like. Apply on the first surface of 31).
- one second portion 4201 is formed so as to substantially surround the second through hole 351 (see FIG. 6). A part of the second portion 4201 in the circumferential direction is not continuous, and an exhaust path 600 is formed. Further, the other second portion 4202 is formed so as to surround the second through hole 352 (see FIG. 6). The circumferential direction of the second portion 4202 is continuous, and no exhaust path is formed in the second portion 4202.
- the material of the first portion 410 and the material of the second portion 420 may be dried and temporarily fired.
- the second panel 30 coated with the material of the first portion 410 and the material of the second portion 420 is heated.
- the first panel 20 may be heated together with the second panel 30. That is, the first panel 20 may be heated under the same conditions as the second panel 30. As a result, the difference in warpage between the first panel 20 and the second panel 30 can be reduced.
- the pillar forming process is executed. Specifically, in the pillar forming step, a plurality of pillars 70 are formed in advance, and the plurality of pillars 70 are arranged at predetermined positions on the second panel 30 by using a chip mounter or the like.
- the plurality of pillars 70 may be formed by using a photolithography technique and an etching technique. In this case, the plurality of pillars 70 are formed by using a photocurable material or the like. Alternatively, the plurality of pillars 70 may be formed by using a well-known thin film forming technique.
- the gas adsorbent forming step is executed. Specifically, in the gas adsorbent forming step, the gas adsorbent 60 is formed by applying a solution in which the getter powder is dispersed to a predetermined position on the second panel 30 and drying the solution.
- the order of the adhesive placement step, the pillar forming step, and the gas adsorbent forming step is arbitrary.
- the glass composite production step is executed.
- the second panel 30 is arranged so as to face the first panel 20 so that the first through hole 25 and the second through hole 35 face each other, and the glass is formed.
- This is a step of producing a composite.
- the glass composite comprises a first panel 20, a second panel 30, and a thermal adhesive (first portion 410 and second portion 420).
- the first through hole 251 and the second through hole 351 face each other, and the first through hole 252 and the second through hole 352 face each other.
- the first panel 20 and the second panel 30 are arranged so that the first surface of the first glass plate 21 and the first surface of the second glass plate 31 are parallel to each other and face each other, and are overlapped with each other.
- the thermal adhesive comes into contact with the first panel 20 and the second panel 30 to form a glass composite.
- the interior space forming step is a step of heating the glass composite to melt the heat adhesive to form a first portion 410 which will later become a seal 40 and a second portion 420 (partition) which will later become a partition wall 42. ..
- the assembled product 100 is prepared by joining the first panel 20 and the second panel 30. That is, the internal space forming step is a step (joining step) of airtightly joining the first panel 20 and the second panel 30 by the first portion 410 and the second portion 420.
- the seal 40 has a frame shape that airtightly joins the peripheral edges of the first panel 20 and the second panel 30 so as to form an internal space 500 between the first panel 20 and the second panel 30. ..
- the first portion 410 functions as a seal.
- the second portion 420 (partition) is spatially separated from the first space 510 and the first space 510 in which the internal space 500 is sealed except for the exhaust path 600, and the first through hole 25 and the second through hole 25 and the second through hole. It is divided into a second space 520 that communicates with 35.
- the second portion 420 airtightly joins the first panel 20 and the second panel 30.
- the second portion 4201 has an exhaust path 600.
- the second portion 4202 is a partition wall 422 (42) that does not have an exhaust path and functions as a seal.
- the first panel 20 and the second panel 30 are airtightly joined by temporarily melting the first thermal adhesive at a predetermined temperature (first melting temperature) Tm1 above the first softening point.
- first melting temperature a predetermined temperature
- the glass composite is placed in a melting furnace and heated by tm1 at a first melting temperature Tm1 for a predetermined time (first melting time).
- the first melting temperature Tm1 and the first melting time tm1 the first panel 20 and the second panel 30 are airtightly joined by the first portion 410 and the second portion 420, but the exhaust path 600 is provided by the second portion 420. It is set so that it will not be blocked. That is, the lower limit of the first melting temperature Tm1 is the first softening point, but the upper limit of the first melting temperature Tm1 is set so that the exhaust path 600 is not blocked by the second portion 420. For example, when the first softening point and the second softening point are 290 ° C., the first melting temperature Tm1 is set to 300 ° C.
- the first melting time tm1 is, for example, 10 minutes.
- gas is released from the first portion 410 and the second portion 420, and this gas is adsorbed by the gas adsorbent 60.
- the first portion 410 and the second portion 420 before softening of the glass composite are softened, and the softened first portion 410 and the second portion 420 are the first panel 20 and the second panel 30.
- the assembled product 100 shown in FIGS. 3 and 4 is obtained.
- the depressurizing step is a step of discharging the gas in the first space 510 to depressurize the first space 510. Specifically, in the depressurizing step, the first space 510 is exhausted through the exhaust path 600, the second space 520, and the exhaust port 700 (second through hole 351) at a predetermined temperature (exhaust temperature) Te. This is a step of reducing the pressure.
- the depressurization step is performed using an exhaust port portion 800, a closing member 810, a clip 820, and a vacuum pump (not shown).
- the vacuum pump is connected to an exhaust port 800 that is airtightly connected to the second through hole 351.
- the closing member 810 closes the first through hole 251.
- the clip 820 sandwiches the exhaust port portion 800 and the closing member 810 so as to be close to each other.
- the closing member 810 a heat-resistant rubber material that can be used even at a high temperature of 300 ° C. to 400 ° C., or a metal or ceramic having a heat-resistant O-ring attached to the tip thereof can be appropriately used. There is no particular limitation.
- the first space 510 is exhausted through the exhaust path 600, the second space 520, and the exhaust port 700 for a predetermined time (exhaust time) te at the exhaust temperature Te.
- the exhaust temperature Te is set higher than the activation temperature of the getter of the gas adsorbent 60 (for example, 240 ° C.) and lower than the first softening point and the second softening point (for example, 290 ° C.).
- the exhaust temperature Te is 250 ° C.
- the first part 410 and the second part 420 are not deformed. Further, the getter of the gas adsorbent 60 is activated, and the molecule (gas) adsorbed by the getter is released from the getter. Then, the molecules (that is, gas) released from the getter are discharged through the first space 510, the exhaust path 600, the second space 520, and the exhaust port 700. Therefore, in the internal space forming step, the adsorption capacity of the gas adsorbent 60 is restored.
- the exhaust time te is set so that a decompression space 50 having a desired degree of vacuum (for example, a degree of vacuum of 0.1 Pa or less) can be obtained.
- a desired degree of vacuum for example, a degree of vacuum of 0.1 Pa or less
- the exhaust time te is set to 120 minutes.
- the decompression step may be started after the completion of the internal space forming step, or may be started in the middle of the internal space forming step. In this case, the depressurizing step is performed at the same time as the internal space forming step.
- the decompression space forming step (sealing step) is executed.
- the decompression space forming step the decompression space 510 is sealed by sealing the exhaust path 600 by deforming the partition while maintaining the decompression state of the first space 510, and the decompression space 510 is sealed. It is a step of 50.
- the partition wall 421 (42) (see FIG. 2) is formed by deforming the second portion 4201 which is a partition to block the exhaust path 600 and surround the decompression space 50. ) Is the process of forming.
- the second portion 4201 is locally heated so as to reach a predetermined temperature (second melting temperature) equal to or higher than the second softening point.
- a predetermined temperature second melting temperature
- an irradiator configured to emit a laser is used.
- the irradiator can irradiate the second portion 4201 with a laser from the outside through the second panel 30.
- a device other than the irradiator may be used for local heating, and the method of local heating is not limited.
- the glass panel unit 10 can be obtained.
- the glass panel unit 10 has through holes (first through hole 25 and second through hole 35). Therefore, it is easy to attach the glass panel unit 10 to a fixed object such as a building or transportation equipment. Further, it is easy to attach the handle 900 as shown in FIG. 8, for example, to the glass panel unit 10.
- the handle 900 is formed with screw holes 910 at positions corresponding to the first through holes 251 and 252.
- the screw hole 910 is positioned so as to pass through the first through holes 251 and 252, the bolt 920 is passed through the second through holes 351, 352, and the screw hole 910 is screwed into the screw hole 910 through the first through holes 251, 252.
- the handle 900 is attached to the glass panel unit 10.
- the glass panel unit 10 of the second embodiment will be described with reference to FIGS. 9A and 9B. Since the second embodiment is almost the same as the first embodiment, the description that overlaps with the first embodiment will be omitted.
- the size and placement location of the gas adsorbent 60 are different from those in the first embodiment, and other points are the same as those in the first embodiment.
- the gas adsorbent 60 is arranged around the second through hole 351. Specifically, a total of four gas adsorbents 60 are provided around the second through hole 351 at 90 degree intervals. The gas adsorbent 60 is housed in a recess formed on the surface of the second panel 30. The number of gas adsorbents 60 formed around the second through hole 351 is not limited. Further, the gas adsorbent 60 may be arranged around the first through hole 25 (251, 252) and the second through hole 352.
- the portion around the first through hole 25 or the second through hole 35 is a fixed object. Easy to hide with a handle or handle. In this case, since the gas adsorbent 60 is arranged around the first through hole 25 or the second through hole 35, the gas adsorbent 60 becomes difficult to see.
- the glass panel unit 10 has a rectangular shape, but the glass panel unit 10 may have a desired shape such as a circular shape or a polygonal shape. That is, the first panel 20, the second panel 30, and the seal 40 may have a desired shape such as a circular shape or a polygonal shape instead of a rectangular shape.
- the shapes of the first panel 20, the second panel 30, the portion 41 corresponding to the decompression space 50, and the partition wall 42 are not limited to the shape of the above embodiment, and the glass panel unit 10 having a desired shape can be obtained. Any shape may be used.
- the shape and size of the glass panel unit 10 are determined according to the use of the glass panel unit 10.
- neither the first surface nor the second surface of the first glass plate 21 of the first panel 20 is limited to a flat surface.
- neither the first surface nor the second surface of the second glass plate 31 of the second panel 30 is limited to a flat surface.
- first glass plate 21 of the first panel 20 and the second glass plate 31 of the second panel 30 do not have to have the same plane shape and plane size. Further, the first glass plate 21 and the second glass plate 31 do not have to have the same thickness. Further, the first glass plate 21 and the second glass plate 31 do not have to be made of the same material.
- the first panel 20 may further include a coating formed on the second surface of the first glass plate 21 having desired physical properties.
- the first panel 20 may not include the coating 22. That is, the first panel 20 may be composed of only the first glass plate 21.
- the second panel 30 may further include a coating having desired physical properties.
- the coating may include, for example, at least one of thin films formed on the first surface and the second surface of the second glass plate 31, respectively.
- the coating is, for example, an infrared reflective film that reflects light of a specific wavelength, an ultraviolet reflective film, or the like.
- the internal space 500 is divided into one first space 510 and one second space 520.
- the internal space 500 may be divided into one or more first spaces 510 and one or more second spaces 520.
- the second thermal adhesive is the same as the first thermal adhesive, and the second softening point and the first softening point are equal.
- the second thermal adhesive may be made of a material different from that of the first thermal adhesive.
- the second thermal adhesive may have a second softening point different from the first softening point of the first thermal adhesive.
- first adhesive and the second thermal adhesive are not limited to glass frit, and may be, for example, a low melting point metal or a hot melt adhesive.
- the second through hole 35 may not be formed in the second panel 30.
- the through hole forming step is executed after the decompression space forming step.
- the through hole forming step is a step of forming the second through hole 35 at a position corresponding to the second space 520 of the second panel 30 and at a position facing the first through hole 25.
- the glass panel unit 10 having the first through hole 25 and the second through hole 35 can be used for fixed objects such as buildings, electric devices such as refrigerated showcases for homes and stores, and glass windows in the mobility field such as automobiles. Is.
- the glass panel unit (10) of the first aspect according to the present disclosure includes a first panel (20), a second panel (30), and a seal (40). ) And the partition wall (42).
- the first panel (20) includes a first glass plate (21).
- the second panel (30) includes the first panel (20) and is arranged so as to face the second glass plate (31).
- the seal (40) is peripheral to each other of the first panel (20) and the second panel (30) so as to form an internal space (500) between the first panel (20) and the second panel (30). It is a frame-shaped object that airtightly joins the parts.
- the partition wall (42) is a second space (520) in which the internal space (500) is spatially separated from the first space (510), which is a closed decompression space (50), and the first space (510).
- the first panel (20) and the second panel (30) are airtightly joined so as to be partitioned from each other.
- the first panel (20) has a first through hole (25) formed at a position corresponding to the second space (520).
- the second panel (30) has a second through hole (35) formed at a position corresponding to the second space (520) and at a position facing the first through hole (25).
- the glass panel unit (10) of the first aspect it is possible to suppress the difficulty in handling because there is no through hole.
- the glass panel unit (10) of the second aspect can be realized in combination with the first aspect.
- the partition wall (42) has a first through hole (25) and a second through hole (25) when viewed in the opposite direction of the first panel (20) and the second panel (30). Surround the hole (35).
- the partition wall (42) is easily formed.
- the method for manufacturing the glass panel unit (10) according to the third aspect according to the present disclosure includes an adhesive arranging step, a glass composite forming step, an internal space (500) forming step, a decompression step, and a decompression space (50). ) With a forming process.
- the adhesive arranging step is a first panel (20) including a first glass plate (21) and having a first through hole (25) or a first panel (20) including a second glass plate (31) and having a second through hole (35). This is a step of arranging a heat adhesive which will be a seal (40) and a partition later on the two panels (30).
- the first panel (20) and the second panel (30) are arranged so as to face each other so that the first through hole (25) and the second through hole (35) face each other.
- This is a step of producing a glass composite containing the first panel (20), the second panel (30), and a thermal adhesive.
- the interior space (500) forming step is a step of heating the glass composite to melt the heat adhesive to form a seal (40) and a partition.
- the seal (40) is peripheral to each other of the first panel (20) and the second panel (30) so as to form an internal space (500) between the first panel (20) and the second panel (30). It is a frame-shaped object that airtightly joins the parts.
- the partition is spatially separated from the first space (510) and the first space (510) in which the internal space (500) is sealed except for the exhaust path, and the first through hole (25) and the second through.
- the first panel (20) and the second panel (30) are airtightly joined so as to partition the second space (520) that communicates with the hole (35), and the first space (510) and the second space (520) are joined.
- the depressurizing step is a step of discharging the gas in the first space (510) through the exhaust path to depressurize the first space (510).
- the first space (510) is sealed by deforming the partition to block the exhaust path while maintaining the decompression state of the first space (510), and the first space (510) is formed. This is a step of making 510) a closed decompression space (50).
- the method for manufacturing the glass panel unit (10) of the third aspect it is possible to prevent the manufactured glass panel unit (10) from becoming difficult to handle because it does not have a through hole.
- the method for manufacturing the glass panel unit (10) according to the fourth aspect according to the present disclosure can be realized by combining with the third aspect.
- the exhaust port portion (800) airtightly connected to one of the first through hole (25) and the second through hole (35) , A clip that sandwiches the closing member (810) that closes the other of the first through hole (25) and the second through hole (35), and the exhaust port portion (800) and the closing member (810) so as to be close to each other. 820) and is a step using.
- the decompression step can be easily executed.
- the method for manufacturing the glass panel unit (10) according to the fifth aspect according to the present disclosure includes an adhesive arranging step, a glass composite forming step, an internal space (500) forming step, a decompression step, and a decompression space (50). ) A forming step and a through hole forming step are provided.
- the adhesive placement step is performed on a first panel (20) including a first glass plate (21) and having a first through hole (25) or a second panel (30) including a second glass plate (31). This is a step of arranging the heat adhesive that will be the seal (40) and the partition later.
- the first panel (20) and the second panel (30) are arranged so as to face each other, and the glass composite containing the first panel (20), the second panel (30), and the thermal adhesive is included.
- the interior space (500) forming step is a step of heating the glass composite to melt the heat adhesive to form a seal (40) and a partition.
- the seal (40) is peripheral to each other of the first panel (20) and the second panel (30) so as to form an internal space (500) between the first panel (20) and the second panel (30). It is a frame-shaped object that airtightly joins the parts.
- the partition divides the internal space (500) into a first space (510) that is sealed except for the exhaust path (600) and a second space (520) that is spatially separated from the first space (510). It has an exhaust path that airtightly joins the first panel (20) and the second panel (30) and allows the first space (510) and the second space (520) to pass through so as to be partitioned.
- the depressurizing step is a step of discharging the gas in the first space (510) through the exhaust path to depressurize the first space (510).
- the first space (510) is sealed by deforming the partition to block the exhaust path while maintaining the decompression state of the first space (510), and the first space (510) is formed.
- the through hole forming step is a step of forming the second through hole (35) at a position corresponding to the second space (520) of the second panel (30) and at a position facing the first through hole (25). ..
- the method for manufacturing the glass panel unit (10) of the fifth aspect it is possible to prevent the manufactured glass panel unit (10) from becoming difficult to handle because it does not have a through hole.
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Abstract
Description
20 第1パネル
21 第1ガラス板
25 第1貫通孔
30 第2パネル
31 第2ガラス板
35 第2貫通孔
40 シール
42 隔壁
50 減圧空間
500 内部空間
510 第1空間
520 第2空間
800 排気口部
810 閉塞部材
820 クリップ
Claims (5)
- 第1ガラス板を含む第1パネルと、
第2ガラス板を含み、前記第1パネルに対向して配置される第2パネルと、
前記第1パネルと前記第2パネルの間に内部空間を形成するように、前記第1パネルと前記第2パネルの互いの周縁部を気密に接合する枠状のシールと、
前記内部空間を、密閉された減圧空間である第1空間と、前記第1空間と空間的に分離された第2空間とに仕切るように、前記第1パネルと前記第2パネルとを気密に接合する隔壁と、を備え、
前記第1パネルは、前記第2空間に対応する位置に形成される第1貫通孔を有し、
前記第2パネルは、前記第2空間に対応する位置でかつ前記第1貫通孔と対向する位置に形成される第2貫通孔を有する
ガラスパネルユニット。 - 前記隔壁は、前記第1パネルと前記第2パネルの対向方向に見て、前記第1貫通孔及び前記第2貫通孔を囲む
請求項1記載のガラスパネルユニット。 - 第1ガラス板を含み第1貫通孔を有する第1パネル又は第2ガラス板を含み第2貫通孔を有する第2パネルの上に、後にシール及び仕切りとなる熱接着剤を配置する接着剤配置工程と、
前記第1貫通孔と前記第2貫通孔とが対向するように前記第1パネルと前記第2パネルとを対向させて配置し、前記第1パネルと前記第2パネルと前記熱接着剤とを含むガラス複合物を生成するガラス複合物生成工程と、
前記ガラス複合物を加熱して前記熱接着剤を溶融させ、前記第1パネルと前記第2パネルの間に内部空間を形成するように、前記第1パネルと前記第2パネルの互いの周縁部を気密に接合する枠状の前記シールと、前記内部空間を、排気経路を除いて密閉される第1空間と、前記第1空間と空間的に分離されかつ前記第1貫通孔及び前記第2貫通孔と通じる第2空間とに仕切るように、前記第1パネルと前記第2パネルとを気密に接合しかつ前記第1空間と前記第2空間とを通じさせる前記排気経路を有する前記仕切りと、を形成する内部空間形成工程と、
前記第1空間の気体を前記排気経路を通じて排出して、前記第1空間を減圧する減圧工程と、
前記第1空間の減圧状態を維持したまま、前記仕切りを変形させて前記排気経路を閉塞することで前記第1空間を封止し、前記第1空間を密閉された減圧空間とする減圧空間形成工程と、を備える
ガラスパネルユニットの製造方法。 - 前記減圧工程において、前記第1貫通孔と前記第2貫通孔の一方に気密に接続される排気口部と、前記第1貫通孔と前記第2貫通孔の他方を閉塞する閉塞部材と、前記排気口部と前記閉塞部材とを互いに近接するように挟むクリップと、を用いる
請求項3記載のガラスパネルユニットの製造方法。 - 第1ガラス板を含み第1貫通孔を有する第1パネル又は第2ガラス板を含む第2パネルの上に、後にシール及び仕切りとなる熱接着剤を配置する接着剤配置工程と、
前記第1パネルと前記第2パネルとを対向させて配置し、前記第1パネルと前記第2パネルと前記熱接着剤とを含むガラス複合物を生成するガラス複合物生成工程と、
前記ガラス複合物を加熱して前記熱接着剤を溶融させ、前記第1パネルと前記第2パネルの間に内部空間を形成するように、前記第1パネルと前記第2パネルの互いの周縁部を気密に接合する枠状の前記シールと、前記内部空間を、排気経路を除いて密閉される第1空間と、前記第1空間と空間的に分離される第2空間とに仕切るように、前記第1パネルと前記第2パネルとを気密に接合しかつ前記第1空間と前記第2空間とを通じさせる前記排気経路を有する前記仕切りと、を形成する内部空間形成工程と、
前記第1空間の気体を前記排気経路を通じて排出して、前記第1空間を減圧する減圧工程と、
前記第1空間の減圧状態を維持したまま、前記仕切りを変形させて前記排気経路を閉塞することで前記第1空間を封止し、前記第1空間を密閉された減圧空間とする減圧空間形成工程と、
前記第2パネルの前記第2空間に対応する位置でかつ前記第1貫通孔と対向する位置に第2貫通孔を形成する貫通孔形成工程と、を備える
ガラスパネルユニットの製造方法。
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| Application Number | Priority Date | Filing Date | Title |
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| EP20781946.7A EP3950626B1 (en) | 2019-03-29 | 2020-03-05 | Assembly to obtain a glass panel unit and method for manufacturing the said glass panel unit |
| JP2021511281A JP7228819B2 (ja) | 2019-03-29 | 2020-03-05 | ガラスパネルユニットを得るための組立て品及びガラスパネルユニットの製造方法 |
| US17/599,150 US20220170313A1 (en) | 2019-03-29 | 2020-03-05 | Glass panel unit and method for manufacturing the glass panel unit |
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| DE202023102497U1 (de) * | 2023-05-09 | 2023-05-25 | Klafs Gmbh | Isolierglaselement und Saunakabine umfassend das Isolierglaselement |
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| WO2013172033A1 (ja) * | 2012-05-18 | 2013-11-21 | パナソニック株式会社 | 複層ガラスの製造方法 |
| WO2018137354A1 (zh) * | 2017-01-26 | 2018-08-02 | 连玉琦 | 一种真空玻璃及其制备方法 |
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| JP3465634B2 (ja) * | 1998-06-29 | 2003-11-10 | 富士通株式会社 | プラズマディスプレイパネルの製造方法 |
| JPWO2017056422A1 (ja) * | 2015-09-29 | 2018-07-26 | パナソニックIpマネジメント株式会社 | ガラスパネルユニットおよびガラス窓 |
| JP6739639B2 (ja) * | 2016-07-06 | 2020-08-12 | イル パク,ジェ | 真空断熱ガラスパネルの製造方法及びシールキャップ閉鎖装置 |
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| WO2013172033A1 (ja) * | 2012-05-18 | 2013-11-21 | パナソニック株式会社 | 複層ガラスの製造方法 |
| JP2015147727A (ja) | 2012-05-18 | 2015-08-20 | パナソニックIpマネジメント株式会社 | 複層ガラス |
| WO2018137354A1 (zh) * | 2017-01-26 | 2018-08-02 | 连玉琦 | 一种真空玻璃及其制备方法 |
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| JP7228819B2 (ja) | 2023-02-27 |
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| JPWO2020203009A1 (ja) | 2020-10-08 |
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