WO2020195662A1 - Ensemble vitre et procédé de fabrication d'ensemble vitre - Google Patents

Ensemble vitre et procédé de fabrication d'ensemble vitre Download PDF

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Publication number
WO2020195662A1
WO2020195662A1 PCT/JP2020/009325 JP2020009325W WO2020195662A1 WO 2020195662 A1 WO2020195662 A1 WO 2020195662A1 JP 2020009325 W JP2020009325 W JP 2020009325W WO 2020195662 A1 WO2020195662 A1 WO 2020195662A1
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WO
WIPO (PCT)
Prior art keywords
substrate
edge
glass panel
panel unit
protective material
Prior art date
Application number
PCT/JP2020/009325
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English (en)
Japanese (ja)
Inventor
阿部　裕之
瓜生　英一
将 石橋
長谷川　和也
野中　正貴
清水　丈司
治彦 石川
長谷川　賢治
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2021508920A priority Critical patent/JP7199017B2/ja
Publication of WO2020195662A1 publication Critical patent/WO2020195662A1/fr

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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
    • 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 glass panel.
  • This glass panel consists of a vacuum glass panel bonded to each other and another flat glass.
  • the vacuum glass panel has a pair of flat glass sheets facing each other at a predetermined interval.
  • the outer peripheral edge of the pair of flat glass is airtightly bonded by low melting point glass.
  • An edge protection member is applied or adhered to an edge including a corner and a joint of the glass panel.
  • the material of the edge protection member is a resin material or a gel coating agent.
  • the edge protection member in the glass panel described above may be peeled off from the glass panel when a force is applied to the edge protection member.
  • the present disclosure has been made in view of the above reasons, and an object of the present disclosure is to provide a glass panel unit in which the protective material is hard to peel off and a method for manufacturing the glass panel unit.
  • the glass panel unit includes a first substrate, a second substrate, a sealing material, and a protective material.
  • the first substrate includes a first glass panel.
  • the second substrate includes a second glass panel.
  • One of the surfaces on both sides of the first substrate in the thickness direction is the first facing surface.
  • One of the surfaces on both sides of the second substrate in the thickness direction is the second facing surface.
  • the first facing surface and the second facing surface face each other.
  • the sealing material is located between the first facing surface and the second facing surface and seals between them.
  • the protective material is filled between the first edge surface, which is the outer edge portion of the first facing surface, and the second edge surface, which is the outer edge portion of the second facing surface, to cover the sealing material from the outside. ..
  • the distance between the first edge surface and the second edge surface becomes longer as the distance from the sealing material increases outward.
  • the method for manufacturing a glass panel unit according to one aspect of the present disclosure is the method for manufacturing the glass panel unit, in which the protective material is injected between the first edge surface and the second edge surface. Including the process.
  • FIG. 1 is a plan view of the glass panel unit of one embodiment.
  • FIG. 2 is a side view of the same glass panel unit.
  • FIG. 3 is a front view of the same glass panel unit.
  • FIG. 4 is a sectional view taken along line X1-X1 of FIG.
  • FIG. 5 is an enlarged view of a main part of FIG.
  • FIG. 6 is a perspective view of a transportation device provided with the same glass panel unit.
  • FIG. 7 is a cross-sectional view of a main part of the glass panel unit of the first modification.
  • FIG. 8 is a cross-sectional view of a main part of the glass panel unit of the modified example 2.
  • FIG. 9 is a cross-sectional view of a main part of the glass panel unit of the modified example 3.
  • FIG. 1 is a plan view of the glass panel unit of one embodiment.
  • FIG. 2 is a side view of the same glass panel unit.
  • FIG. 3 is a front view of the same glass panel unit.
  • FIG. 10 is a cross-sectional view of a main part of the glass panel unit of the modified example 4.
  • FIG. 11 is a cross-sectional view of a main part of the glass panel unit of the modified example 5.
  • FIG. 12 is a cross-sectional view of a main part of the glass panel unit of the modified example 6.
  • FIG. 13 is a cross-sectional view of a main part of the glass panel unit of the modified example 7.
  • FIG. 14 is a cross-sectional view of a main part of the glass panel unit of the modified example 8.
  • FIG. 15 is a plan view of the glass panel unit of the modified example 9.
  • FIG. 16 is a side view of the same glass panel unit.
  • FIG. 17 is a sectional view taken along line X2-X2 of FIG.
  • Embodiment The present disclosure relates to a glass panel unit in which a first substrate and a second substrate facing each other are sealed with a sealing material, and a method for manufacturing the glass panel unit.
  • FIGS. 1 to 5 show the glass panel unit 1 of the present embodiment.
  • each configuration of the glass panel unit 1 is schematically shown.
  • the dimensional shape of each of the illustrated configurations is different from the actual dimensional shape.
  • the glass panel unit 1 is provided in, for example, the transportation device 9 shown in FIG.
  • the transportation device 9 is an automobile.
  • the glass panel unit 1 is used, for example, as a door glass (side glass) that can be opened and closed of the transportation device 9.
  • the door glass may be configured to be opened and closed electrically, or may be configured to be opened and closed manually.
  • the glass panel unit 1 may be used as a window glass other than the side glass of the transportation device 9.
  • the glass panel unit 1 may be provided in a transportation device other than an automobile as long as it is a transportation device capable of transporting at least one of a person and an object. Examples of other transportation equipment 9 include railroad vehicles, ships, aircraft, and the like.
  • the glass panel unit 1 is not limited to the one provided in the transportation device 9, and may be used as a window glass of a building, or may be a panel used for an entrance door, an interior door, or the like.
  • the glass panel unit 1 is formed in a plate shape. Specifically, the glass panel unit 1 has a flat plate shape. The glass panel unit 1 may have a curved plate shape.
  • the glass panel unit 1 includes a first substrate 11 and a second substrate 12.
  • the thickness direction of each of the first substrate 11 and the second substrate 12 is parallel to the thickness direction of the glass panel unit 1.
  • the first substrate 11 and the second substrate 12 are located at intervals in the thickness direction of the glass panel unit 1 and face each other.
  • the first substrate 11 and the second substrate 12 are parallel to each other.
  • the first substrate 11 and the second substrate 12 may be non-parallel.
  • the first substrate 11 is formed in a flat plate shape.
  • the first substrate 11 is formed in a substantially trapezoidal shape when viewed in the thickness direction of the first substrate 11 (see FIG. 1).
  • the first substrate 11 includes a first glass panel 21.
  • the first substrate 11 of this embodiment is composed of only the first glass panel 21.
  • the first glass panel 21 has translucency. That is, the first substrate 11 has translucency.
  • the thickness of the first glass panel 21 is, for example, 2 mm.
  • the thickness of the first glass panel 21 is not limited to 2 mm.
  • the first glass panel 21 is, for example, tempered glass.
  • the first glass panel 21 may be either physically tempered glass or chemically tempered glass.
  • the type of the first glass panel 21 is not limited, and for example, the first glass panel 21 may be a high-strain point glass, a soda lime glass, an alkali-free glass, a quartz glass, or the like.
  • the first substrate 11 has an end surface 14 constituting its outer edge.
  • the end surface 14 is a surface parallel to the thickness direction of the first substrate 11 and extends over the entire length in the circumferential direction of the first substrate 11.
  • the first substrate 11 has a first surface 31 which is one of the surfaces on both sides in the thickness direction, and a second surface 32 which is a surface opposite to the first surface 31.
  • one surface of the surfaces on both sides of the first glass panel 21 in the thickness direction is the first surface 31, and the other surface is the second surface 32.
  • Each of the first surface 31 and the second surface 32 is a plane whose portion excluding the outer edge portion is orthogonal to the thickness direction of the first substrate 11.
  • the first surface 31 is a surface of the first substrate 11 opposite to the second substrate 12, and constitutes an outer surface of the glass panel unit 1.
  • the second surface 32 is a surface of the first substrate 11 on the second substrate 12 side, and faces the second substrate 12 (third surface 33 described later). That is, the second surface 32 constitutes the first facing surface of the first substrate 11 that faces the second substrate 12.
  • the first surface 31 has a main surface 310 and an edge surface 311.
  • the first surface 31 of the present embodiment is composed of only the main surface 310 and the edge surface 311.
  • the main surface 310 is a portion of the first surface 31 excluding the outer edge portion, and is a plane orthogonal to the thickness direction of the first substrate 11.
  • the edge surface 311 is formed in a frame shape when viewed in the thickness direction of the first substrate 11, and constitutes an outer edge portion (the outermost portion of the first surface 31) of the first surface 31.
  • the inner edge of the edge surface 311 is connected to the outer edge of the main surface 310.
  • the edge surface 311 is a plane that is inclined so that the portion closer to the outer edge is closer to the second surface 32 in the thickness direction of the first substrate 11, and is linear in the cross section orthogonal to the circumferential direction of the first substrate 11. That is, the corner portion of the first substrate 11 located at the outer edge of the first surface 31 has a chamfered shape. Therefore, even if a force is applied to the outer edge portion of the first surface 31 of the first substrate 11, the first substrate 11 is not easily damaged.
  • the outer edge of the edge surface 311 is connected to the edge on the first surface 31 side of the end surface 14 of the first substrate 11.
  • the edge surface 311 is formed, for example, by chamfering the outer edge portion of the surface forming the first surface 31 of the first substrate 11.
  • the edge surface 311 may be formed at the time of molding the first glass panel 21.
  • the second surface (first facing surface) 32 has a main surface 320 and an edge surface 321.
  • the second surface 32 (first facing surface) of the present embodiment is composed of only the main surface 320 and the edge surface 321.
  • the edge surface 321 is referred to as a first edge surface 321.
  • the main surface 320 is a portion of the second surface 32 excluding the outer edge portion, and is a plane orthogonal to the thickness direction of the first substrate 11.
  • the first edge surface 321 is a surface that constitutes the outer edge portion (the outermost portion of the second surface 32) of the second surface 32, and is formed in a frame shape when viewed in the thickness direction of the first substrate 11. There is. The portion closer to the outer edge of the first edge surface 321 is closer to the first surface 31 (the surface of the first substrate 11 opposite to the first facing surface) in the thickness direction of the first substrate 11. That is, the corner portion of the first substrate 11 located at the outer edge of the second surface 32 has a chamfered shape. Therefore, even if a force is applied to the outer edge portion of the second surface 32 of the first substrate 11, the first substrate 11 is not easily damaged.
  • the first edge surface 321 is formed, for example, by chamfering the outer edge portion of the surface of the first substrate 11 that constitutes the second surface 32.
  • the first edge surface 321 may be formed at the time of molding the first glass panel 21.
  • the inner edge of the first edge surface 321 is connected to the outer edge of the main surface 320.
  • the outer edge of the first edge surface 321 is connected to the edge of the end surface 14 of the first substrate 11 on the second surface 32 side.
  • the outer edge of the first edge surface 321 is on the first surface 31 side (the side opposite to the first facing surface on the first substrate 11) with respect to the center in the thickness direction of the first substrate 11 in the thickness direction of the first substrate 11. Is located in.
  • the inner edge of the first edge surface 321 is located inside the inner edge of the edge surface 311 of the first surface 31. That is, the inner edge of the edge surface 311 of the first surface 31 is located outside the inner edge of the first edge surface 321 of the second surface 32.
  • the dimension (shortest distance) L1 from the outer edge to the inner edge of the first edge surface 321 when the first edge surface 321 is viewed in the thickness direction of the first substrate 11 is the first edge surface 321 in the thickness direction of the first substrate 11. Is larger than the dimension L2 of.
  • the first edge surface 321 of the present embodiment has an outer portion 323 located on the outer side of the first edge surface 321 and an inner portion 324 located on the inner side of the first edge surface 321.
  • the inner portion 324 is located inside the outer portion 323.
  • the first edge surface 321 is composed of only the outer portion 323 and the inner portion 324.
  • the outer edge of the outer portion 323 is connected to the end face 14.
  • the inner edge of the outer portion 323 is connected to the inner portion 324, and the inner edge of the inner portion 324 is connected to the main surface 320.
  • Each of the outer portion 323 and the inner portion 324 is a plane inclined so that the portion closer to the outer edge is closer to the first surface 31 in the thickness direction of the first substrate 11, and in a cross section orthogonal to the circumferential direction of the first substrate 11.
  • the cross section is straight.
  • the outer portion 323 has a larger inclination with respect to the virtual plane orthogonal to the thickness direction of the first substrate 11 than the inner portion 324.
  • the second substrate 12 is formed in a flat plate shape.
  • the second substrate 12 has the same shape and size as the first substrate 11 when viewed in the thickness direction of the second substrate 12. That is, the second substrate 12 is formed in a substantially trapezoidal shape when viewed in the thickness direction of the second substrate 12 (see FIG. 1).
  • the outer edge of the first substrate 11 overlaps.
  • the outer edge of the second substrate 12 overlaps. ..
  • the second substrate 12 includes a second glass panel 22 and a low emissivity film 24.
  • the second substrate 12 of the present embodiment is composed of only the second glass panel 22 and the low emissivity film 24.
  • the second substrate 12 has translucency.
  • the second glass panel 22 has translucency.
  • the thickness of the second glass panel 22 is, for example, 2 mm, which is the same as the thickness of the first glass panel 21.
  • the thickness of the second glass panel 22 is not limited to 2 mm.
  • the second glass panel 22 is, for example, tempered glass.
  • the second glass panel 22 may be either physically tempered glass or chemically tempered glass.
  • the type of the second glass panel 22 is not limited.
  • the second glass panel 22 may be high strain point glass, soda lime glass, non-alkali glass, quartz glass, or the like.
  • the first glass panel 21 and the second glass panel 22 may be the same type of glass or different types of glass.
  • the low emissivity film (heat reflective film) 24 is laminated on one of the surfaces 220 on both sides of the second glass panel 22 in the thickness direction.
  • the low emissivity film 24 is a film containing a metal having low radioactivity such as silver.
  • the low emissivity film 24 is formed on a portion of the second glass panel 22 excluding the outer edge portion of the surface 220.
  • the low emissivity film 24 suppresses heat transfer due to radiation. Since the low emissivity film 24 has a thin thickness and transmits light, it has almost no effect on the transparency of the glass panel unit 1.
  • the second substrate 12 has an end surface 15 that constitutes the outer edge thereof.
  • the end surface 15 is a surface parallel to the thickness direction of the second substrate 12, and extends over the entire length in the circumferential direction of the second substrate 12.
  • the second substrate 12 has a third surface 33, which is one of the surfaces on both sides in the thickness direction, and a fourth surface 34, which is a surface opposite to the third surface 33.
  • the third surface 33 is composed of a surface of the low emissivity film 24 opposite to the second glass panel 22 and a portion of the surface 220 of the second glass panel 22 located outside the low emissivity film 24. ..
  • the fourth surface 34 is the surface of the second glass panel 22 opposite to the low emissivity film 24.
  • Each of the third surface 33 and the fourth surface 34 is a plane whose portion excluding the outer edge portion is orthogonal to the thickness direction of the second substrate 12.
  • the third surface 33 is the surface of the second substrate 12 on the side of the first substrate 11, and faces the second surface 32 of the first substrate 11. That is, the third surface 33 constitutes the second facing surface of the second substrate 12 that faces the first substrate 11.
  • the fourth surface 34 is a surface of the second substrate 12 opposite to the first substrate 11, and constitutes an outer surface of the glass panel unit 1.
  • the low emissivity film 24 may be contained in both the first substrate 11 and the second substrate 12, or may be included only in the first substrate 11.
  • the low emissivity film is, for example, on one of the surfaces on both sides of the first glass panel 21 in the thickness direction (for example, the surface facing the second substrate 12). Stacked.
  • the third surface (second facing surface) 33 has a main surface 330 and an edge surface 332.
  • the third surface 33 of the present embodiment is composed of only the main surface 330 and the edge surface 332.
  • the edge surface 332 is referred to as a second edge surface 332.
  • the main surface 330 is a portion of the third surface 33 excluding the outer edge portion, and is a plane orthogonal to the thickness direction of the second substrate 12.
  • the second edge surface 332 is a surface that constitutes the outer edge portion (the outermost portion of the third surface 33) of the third surface 33, and is formed in a frame shape when viewed in the thickness direction of the second substrate 12. There is. The portion of the second edge surface 332 closer to the outer edge is closer to the fourth surface 34 in the thickness direction of the second substrate 12. That is, the corner portion of the second substrate 12 located at the outer edge of the second surface 32 has a chamfered shape. Therefore, even if a force is applied to the outer edge portion of the second surface 32 of the second substrate 12, the second substrate 12 is not easily damaged. The distance between the first edge surface 321 and the second edge surface 332 becomes longer as it is closer to the outer edge of the glass panel unit 1 (as it is further outward from the sealing material 40 described later).
  • the second edge surface 332 is formed, for example, by chamfering the outer edge portion of the surface forming the third surface 33 of the second substrate 12.
  • the second edge surface 332 may be formed at the time of molding the second glass panel 22.
  • the inner edge of the second edge surface 332 is connected to the outer edge of the main surface 330.
  • the inner edge of the second edge surface 332 and the inner edge of the first edge surface 321 overlap each other.
  • the outer edge of the second edge surface 332 is connected to the edge of the end surface 15 of the second substrate 12 on the third surface 33 side.
  • the outer edge of the second edge surface 332 is on the fourth surface 34 side (the side opposite to the second facing surface on the second substrate 12) with respect to the center in the thickness direction of the second substrate 12 in the thickness direction of the second substrate 12. Is located in.
  • the distance D1 in the thickness direction of the glass panel unit 1 from the outer edge of the first edge surface 321 to the outer edge of the second edge surface 332 is a glass panel from the main surface 320 of the first substrate 11 to the main surface 330 of the second substrate 12. It is at least twice the distance D2 in the thickness direction of the unit 1.
  • the distance D1 may be less than twice the distance D2.
  • the dimension L3 from the outer edge to the inner edge of the second edge surface 332 when the second edge surface 332 is viewed in the thickness direction of the second substrate 12 is from the dimension L4 of the second edge surface 332 in the thickness direction of the second substrate 12. Is also big.
  • the second edge surface 332 of the present embodiment has an outer portion 333 located on the outer side of the second edge surface 332 and an inner portion 334 located on the inner side of the second edge surface 332.
  • the inner portion 334 is located inside the outer portion 333.
  • the second edge surface 332 is composed of only the outer portion 333 and the inner portion 334.
  • the outer edge of the outer portion 333 is connected to the end face 15.
  • the inner edge of the outer portion 333 is connected to the inner portion 334, and the inner edge of the inner portion 334 is connected to the main surface 330.
  • Each of the outer portion 333 and the inner portion 334 is a plane inclined so that the portion closer to the outer edge is closer to the fourth surface 34 in the thickness direction of the second substrate 12, and in a cross section orthogonal to the circumferential direction of the second substrate 12. It is linear.
  • the outer portion 333 has a larger inclination with respect to the virtual plane orthogonal to the thickness direction of the second substrate 12 than the inner portion 334.
  • the fourth surface 34 has a main surface 340 and an edge surface 341.
  • the fourth surface 34 of the present embodiment is composed of only the main surface 340 and the edge surface 341.
  • the main surface 340 is a portion of the fourth surface 34 excluding the outer edge portion, and is a plane orthogonal to the thickness direction of the second substrate 12.
  • the edge surface 341 is a surface that constitutes the outer edge portion (the outermost portion of the fourth surface 34) of the fourth surface 34, and is formed in a frame shape when viewed in the thickness direction of the second substrate 12.
  • the inner edge of the edge surface 341 is connected to the outer edge of the main surface 340.
  • the inner edge of the edge surface 341 is located outside the inner edge of the second edge surface 332 of the third surface 33. That is, the inner edge of the second edge surface 332 is located inside the inner edge of the edge surface 341 of the fourth surface 34.
  • the edge surface 341 is a plane that is inclined so that the portion closer to the outer edge is closer to the third surface 33 in the thickness direction of the second substrate 12, and is linear in the cross section orthogonal to the circumferential direction of the second substrate 12. That is, the corner portion of the second substrate 12 located at the outer edge of the fourth surface 34 has a chamfered shape. Therefore, even if a force is applied to the outer edge portion of the fourth surface 34 of the second substrate 12, the second substrate 12 is not easily damaged.
  • the outer edge of the edge surface 341 is connected to the edge on the fourth surface 34 side of the end surface 15 of the second substrate 12.
  • the edge surface 341 is formed, for example, by chamfering the outer edge portion of the surface forming the fourth surface 34 of the second substrate 12.
  • the edge surface 341 may be formed at the time of molding the second glass panel 22.
  • the glass panel unit 1 further includes a sealing material 40, a protective material 41, and a plurality (many) spacers 51.
  • the sealing material 40, the protective material 41, and the plurality of spacers 51 are located between the first substrate 11 and the second substrate 12.
  • the sealing material 40 is formed in a frame shape along the outer edge of the first substrate 11 and the outer edge of the second substrate 12 when viewed in the thickness direction of the glass panel unit 1.
  • a space 61 surrounded by a frame-shaped sealing material 40 is formed between the first substrate 11 and the second substrate 12.
  • the sealing material 40 seals between the first substrate 11 and the second substrate 12. That is, the space 61 is sealed by the sealing material 40.
  • the space 61 is a closed space decompressed to a pressure lower than the atmospheric pressure. Therefore, it becomes difficult for heat to be transferred between the first substrate 11 and the second substrate 12, and the heat insulating property of the glass panel unit 1 is improved.
  • the space 61 is depressurized to a degree of vacuum of, for example, 0.1 Pa or less.
  • the pressure in the space 61 may be higher than 0.1 Pa.
  • the sealing material 40 is formed from a glass frit of low melting point glass.
  • the sealing material 40 is brown or gray.
  • the material of the sealing material 40 is not limited to the glass frit, and may be, for example, a low melting point metal or a hot melt adhesive. Further, the color of the sealing material 40 is not limited to brown or gray.
  • the sealing material 40 is located inside the outer edge (end surface 14) of the first substrate 11 and the outer edge (end surface 15) of the second substrate 12 when viewed in the thickness direction of the glass panel unit 1. are doing.
  • the encapsulant 40 includes a portion of the first substrate 11 located inside the first edge surface 321 and the second substrate 12 and the second edge surface 332, and the main surface 320 and the third surface 33 of the second surface 32. It has a portion located outside the main surface 330.
  • the sealing material 40 is airtightly bonded to the facing surfaces (that is, the second surface 32 and the third surface 33) of the first substrate 11 and the second substrate 12 over the entire circumference thereof. .. As a result, the first substrate 11 and the second substrate 12 are connected via the sealing material 40.
  • the end portion of the sealing material 40 on the first substrate 11 side is joined to the outer edge portion of the main surface 320 on the second surface 32 and the inner portion 324 of the first edge surface 321.
  • the end portion of the sealing material 40 on the second substrate 12 side is an outer edge portion of the main surface 330 on the third surface 33 (specifically, a portion located on the surface 220 of the second glass panel 22 outside the low emissivity film 24). ) And the inner portion 334 of the second edge surface 332.
  • the protective material 41 is located on the outside of the sealing material 40.
  • the protective material 41 is exposed to the outside of the glass panel unit 1.
  • the protective material 41 is preferably formed of a material having a higher strength than the sealing material 40.
  • the protective material 41 is made of resin.
  • the resin is, for example, a silicon resin, an ABS (Acrylonitrile butadiene styrene) resin, a urethane resin, an acrylic resin, an epoxy resin, or the like.
  • the protective material 41 is not limited to these resins.
  • the protective material 41 may be formed of a material other than resin such as metal, glass or rubber.
  • the metal used as the material of the protective material 41 is, for example, a low melting point metal such as tin, gallium or bismuth, or a mixture thereof. Further, the protective material 41 may be formed of a material having the same strength as the sealing material 40 or a material having a lower strength than the sealing material 40.
  • the protective material 41 is filled between the outer portion 323 of the first edge surface 321 and the outer portion 333 of the second edge surface 332.
  • the protective material 41 is formed in a frame shape surrounding the sealing material 40 when viewed in the thickness direction of the glass panel unit 1, and is along the outer surface (the surface opposite to the space 61) of the sealing material 40. ..
  • the protective material 41 covers the sealing material 40 from the outside. As a result, the protective material 41 protects the sealing material 40.
  • the protective material 41 is joined to the outer surface of the sealing material 40 so that a gap is not formed between the protective material 41 and the sealing material 40.
  • the outer end portion of the protective material 41 protrudes outward from the outer edge (end face 14) of the first substrate 11 and the outer edge (end face 15) of the second substrate 12.
  • the end portion of the protective material 41 on the first substrate 11 side is joined to the outer portion 323 of the first edge surface 321.
  • the end portion of the protective material 41 on the second substrate 12 side is joined to the outer portion 333 of the second edge surface 332.
  • the protective material 41 is inserted between the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12. Therefore, it is difficult to peel off from the first substrate 11 and the second substrate 12. Further, each of the first edge surface 321 and the second edge surface 332 is inclined with respect to the direction orthogonal to the thickness direction of the glass panel unit 1. Therefore, each of the first edge surface 321 and the second edge surface 332 has a large contact area with the protective material 41 as compared with the case where each of the first edge surface 321 and the second edge surface 332 is orthogonal to the thickness direction of the glass panel unit 1. Therefore, the bonding strength of the protective material 41 to the first substrate 11 and the second substrate 12 can be increased.
  • the end portion on the first substrate 11 side is joined to the entire outer portion 323 of the first edge surface 321 and the end surface 14 of the first substrate 11, and the end portion on the second substrate 12 side is joined.
  • the portion is joined to the entire outer portion 333 of the second edge surface 332 and the end surface 15 of the second substrate 12. Therefore, the bonding strength of the protective material 41 to the first substrate 11 and the second substrate 12 can be further increased, and the protective material 41 is less likely to be peeled off from the first substrate 11 and the second substrate 12.
  • the end portion of the protective material 41 on the first substrate 11 side may be joined to the outer portion 323 only to a part of the outer portion 323.
  • the end portion of the protective material 41 on the first substrate 11 side may be joined to the entire end face 14, or may be joined only to a part of the end face 14.
  • the end portion of the protective material 41 on the second substrate 12 side may be joined to the outer portion 333 only to a part of the outer portion 323.
  • the end portion of the protective material 41 on the second substrate 12 side may be bonded to the entire end surface 15 or may be bonded to only a part of the end surface.
  • the protective material 41 is opaque. Therefore, even if the protective material 41 becomes dirty, it is not noticeable.
  • the protective material 41 may be transparent.
  • the color of the protective material 41 is the same as the color of the sealing material 40. That is, the protective material 41 is brown or gray.
  • the color of the protective material 41 and the color of the sealing material 40 may be similar colors in which the hue difference is 30 degrees or less at the angle of the hue circle, or 60 degrees or less at the angle of the hue circle. It may be a color. Further, the color of the protective material 41 and the color of the sealing material 40 may be colors exceeding 60 degrees in the angle of the color wheel.
  • the first substrate 11 is formed with an exhaust hole 16 penetrating in the thickness direction of the first substrate 11.
  • the exhaust hole 16 is a hole used for decompressing the space 61 in the process of manufacturing the glass panel unit 1 (decompression step described later).
  • the glass panel unit 1 further includes a sealing member 17.
  • the sealing member 17 seals the exhaust hole 16.
  • the exhaust hole 16 may be formed in the second substrate 12. Further, the exhaust hole 16 may be sealed by melting a part of the first glass panel 21 or the second glass panel 22. In this case, the sealing member 17 can be omitted.
  • a plurality of spacers 51 are located between the first substrate 11 and the second substrate 12 at positions inside the sealing material 40.
  • the plurality of spacers 51 are located at intervals from each other when viewed in the thickness direction of the glass panel unit 1.
  • Each of the plurality of spacers 51 hits the second surface 32 of the first substrate 11 and the third surface 33 of the second substrate 12. As a result, the distance between the first substrate 11 and the second substrate 12 is maintained at a certain size or more.
  • Each of the plurality of spacers 51 is made of, for example, a metal-based material in whole or in part.
  • each spacer 51 may be formed from a material other than metal. Further, the plurality of spacers 51 can be omitted.
  • the manufacturing method of the present embodiment includes a preparation step, a spacer placement step, a joining step, a decompression step, a sealing step, and a protective material injection step.
  • the preparation process is a process of preparing the first glass panel 21 and the second glass panel 22.
  • the first glass panel 21 is formed, for example, by processing an exhaust hole 16 in a glass panel cut out from a base material in a predetermined shape.
  • the second glass panel 22 is formed, for example, by cutting out from the base material in a predetermined shape.
  • the low emissivity film 24 is further laminated on the surface 220 of the second glass panel 22.
  • a plurality of spacers 51 are arranged on the second surface 32 of the first substrate 11 at a distance from each other.
  • the joining process is performed, for example, after the spacer placement process.
  • the joining step is a step of arranging a frame-shaped sealing material 40 between the first substrate 11 and the second substrate 12 and joining the first substrate 11 and the second substrate 12 via the sealing material 40. is there.
  • the glass frit of the low melting point glass used as the material of the sealing material 40 is arranged in a frame shape on the second surface 32 of the first substrate 11, and the glass frit and the plurality of spacers 51 are first. It is sandwiched between the substrate 11 and the second substrate 12.
  • the first substrate 11, the second substrate 12, and the glass frit are heated in a furnace with the glass frit and the plurality of spacers 51 sandwiched between the first substrate 11 and the second substrate 12 in this way. Will be done.
  • the glass frit sandwiched between the first substrate 11 and the second substrate 12 is temporarily melted. After that, it solidifies, thereby forming a frame-shaped sealing material 40 made of glass frit.
  • the depressurization step is performed, for example, after the joining step.
  • the decompression step is a step of discharging the air in the space 61 surrounded by the first substrate 11, the second substrate 12, and the sealing material 40 through the exhaust hole 16 and decompressing the space 61 to a predetermined degree of vacuum.
  • the sealing step is performed, for example, after the depressurizing step or during the depressurizing step.
  • the sealing step is a step of sealing the decompressed space 61 in the decompressed state in the decompressed state.
  • the exhaust hole 16 is sealed with the sealing member 17 while maintaining the reduced pressure state of the space 61.
  • the sealing member 17 is formed of, for example, a glass frit.
  • the sealing member 17 is locally heated by, for example, infrared irradiation from the outside, and then cooled to be once melted and then solidified. As a result, the exhaust hole 16 is sealed by the sealing member 17, and the space 61 is sealed in a reduced pressure state.
  • This method is only an example of a method of sealing the space 61, and it is also possible to seal the space 61 by another method.
  • the protective material injection step is performed, for example, after the joining step.
  • the protective material injection step is a step of injecting a material to be a protective material 41 between the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12 shown in FIG. 5 and solidifying the material. is there.
  • a fluid resin serving as the protective material 41 is applied to the first edge surface. It is injected from the outside between 321 and the second edge surface 332.
  • a frame-shaped protection that covers the sealing material 40 between the first edge surface 321 and the second edge surface 332.
  • the material 41 is formed.
  • the protective material injection step is performed after the sealing step or at the same time as the sealing step, but may be performed before the sealing step. Further, the method of filling the above-mentioned sealing material 40 between the first edge surface 321 and the second edge surface 332 is only an example, and the sealing material 40 is filled between the first edge surface 321 and the second edge surface 321 by another method. It may be filled between the edge surface 332 and the edge surface 332.
  • the distance between the first edge surface 321 of the first glass panel 21 and the second edge surface 332 of the second glass panel 22 becomes longer toward the outside. Therefore, in the protective material injection step, the resin which is the material of the protective material 41 is easily injected from the outside between the first edge surface 321 and the second edge surface 332.
  • the protective material 41 of the present embodiment is joined to the outer surface of the sealing material 40 so that a gap is not formed between the protective material 41 and the sealing material 40. Therefore, the appearance of the glass panel unit 1 can be improved.
  • the outer end portion of the sealing material 40 protrudes outside from the main surface 320 of the first substrate 11 and the main surface 330 of the second substrate 12. Therefore, in the protective material injection step, it is not necessary to inject the resin which is the material of the protective material 41 into the narrow gap between the main surface 320 of the first substrate 11 and the main surface 330 of the second substrate 12. In terms of points, the resin that is the material of the protective material 41 is easily injected between the first edge surface 321 and the second edge surface 332.
  • the distance D1 from the outer edge of the first edge surface 321 to the outer edge of the second edge surface 332 is more than twice the distance D2 from the main surface 320 of the first substrate 11 to the main surface 330 of the second substrate 12. .. Therefore, the resin which is the material of the protective material 41 can be more easily injected between the first edge surface 321 and the second edge surface 332.
  • FIG. 7 is a cross-sectional view corresponding to FIG. 5 of the glass panel unit 1 of the modified example 1.
  • the entire sealing material 40 is located inside the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12, and is sealed.
  • the material 40 is joined only to the main surface 320 on the second surface 32 and only to the main surface 330 on the third surface 33.
  • the protective material 41 is also filled between the main surface 320 of the first substrate 11 and the main surface 330 of the second substrate 12.
  • the protective material 41 penetrates between the main surface 320 of the first substrate 11 and the main surface 330 of the second substrate 12. Therefore, the protective material 41 is difficult to peel off from the first substrate 11 and the second substrate 12. Further, since the inner end portion of the protective material 41 is joined to the main surface 320 of the first substrate 11 and the main surface 330 of the second substrate 12, the protective material 41 is joined to the first substrate 11 and the second substrate 12. The strength can be further increased.
  • FIG. 8 is a cross-sectional view corresponding to FIG. 5 of the glass panel unit 1 of the modified example 2.
  • the sealing material 40 is located inside the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12, as in the modification 1. ..
  • the sealing material 40 and the protective material 41 are not in contact with each other, and a gap 18 is formed between the sealing material 40 and the protective material 41. Therefore, when an impact or the like is applied to the protective material 41 from the outside, the force applied to the protective material 41 is difficult to be transmitted to the sealing material 40. Therefore, deformation and breakage of the sealing material 40 can be suppressed.
  • FIG. 9 is a cross-sectional view corresponding to FIG. 5 of the glass panel unit 1 of the modified example 3.
  • the dimension L1 from the outer edge to the inner edge of the first edge surface 321 when the first edge surface 321 is viewed in the thickness direction of the first substrate 11 is the thickness direction of the first substrate 11. It is smaller than the dimension L2 of the first edge surface 321 in.
  • the dimension (shortest distance) L3 from the outer edge to the inner edge of the second edge surface 332 when the second edge surface 332 is viewed in the thickness direction of the second substrate 12 is the second edge in the thickness direction of the second substrate 12. It is smaller than the dimension L4 of the surface 332.
  • the sealing material 40 of the present modification is also located inside the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12, as in the modification 1.
  • the protective material 41 of this modified example and the modified examples 4 to 8 described later may come into contact with the sealing material 40 as in the modified example 1, or may come into contact with the sealing material 40 as in the modified example 2. It does not have to be in contact.
  • the dimension L1 is smaller than the dimension L2, and the dimension L3 is smaller than the dimension L4. Therefore, in the protective material injection step, the resin which is the material of the protective material 41 can be more easily injected between the first edge surface 321 and the second edge surface 332.
  • FIG. 10 is a cross-sectional view corresponding to FIG. 5 of the glass panel unit 1 of the modified example 4.
  • the thickness of the first substrate 11 (first glass panel 21) and the thickness of the second substrate 12 (second glass panel 22) are different.
  • the thickness of the first substrate 11 (first glass panel 21) is smaller than the thickness of the second substrate 12 (second glass panel 22).
  • the outer edge of the first edge surface 321 is located on the second surface 32 side of the center in the thickness direction of the first substrate 11 in the thickness direction of the first substrate 11.
  • the inner edge of the first edge surface 321 is located outside the inner edge of the second edge surface 332.
  • the first edge surface 321 is a flat surface.
  • the encapsulant 40 of this modified example is also located inside the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12, as in the modified example 1.
  • FIG. 11 is a cross-sectional view corresponding to FIG. 5 of the glass panel unit 1 of the modified example 5.
  • each of the edge surface 311 and the first edge surface 321 of the first substrate 11 and the second edge surface 332 and the edge surface 341 of the second substrate 12 have a cross section orthogonal to the circumferential direction. It is formed in an arc shape.
  • the edge surface 311 of the first substrate 11 is curved so that the portion closer to the outer edge is closer to the second surface 32 in the thickness direction of the first substrate 11.
  • the first edge surface 321 of the first substrate 11 is curved so that the portion closer to the outer edge is closer to the first surface 31 in the thickness direction of the first substrate 11.
  • the outer edge of the first edge surface 321 is directly connected to the outer edge of the edge surface 311, and the first edge surface 321 and the edge surface 311 are continuous.
  • the curvature of the first edge surface 321 is smaller than the curvature of the edge surface 311.
  • the second edge surface 332 of the second substrate 12 is curved so that the portion closer to the outer edge is closer to the fourth surface 34 in the thickness direction of the second substrate 12.
  • the edge surface 341 of the second substrate 12 is curved so that the portion closer to the outer edge is closer to the third surface 33 in the thickness direction of the second substrate 12.
  • the outer edge of the second edge surface 332 is directly connected to the outer edge of the edge surface 341, and the second edge surface 332 and the edge surface 341 are continuous.
  • the curvature of the second edge surface 332 is smaller than the curvature of the edge surface 341.
  • the sealing material 40 of the present modification is also located inside the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12, as in the modification 1.
  • FIG. 12 is a cross-sectional view corresponding to FIG. 5 of the glass panel unit 1 of the modified example 6.
  • the protective material 41 does not protrude outside the outer edge of the first substrate 11 and the outer edge of the second substrate 12.
  • the edge surface 311 and the first edge surface 321 of the first substrate 11 and the second edge surface 332 and the edge surface 341 of the second substrate 12 Each is formed in an arc shape in cross section.
  • the sealing material 40 of the present modification is also located inside the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12, as in the modification 5.
  • the outer surface of the protective material 41 of this modification (the surface opposite to the sealing material 40) is a flat surface parallel to the thickness direction of the glass panel unit 1, and this outer surface constitutes the outer edge of the protective material 41. ing.
  • the outer edge of the protective material 41 is the outer edge of the first substrate 11 (the outer edge of the edge surface 311 and the outer edge of the first edge surface 321) and the outer edge of the second substrate 12 (second edge) when viewed in the thickness direction of the glass panel unit 1. It overlaps with the outer edge of the surface 332 and the outer edge of the edge surface 341).
  • the protective material 41 of this modified example does not protrude outside the outer edge of the first substrate 11 and the outer edge of the second substrate 12. Therefore, it is possible to prevent the protective material 41 from coming into contact with an object other than the glass panel unit 1 and peeling off from the first substrate 11 and the second substrate 12.
  • the protective material 41 may be entirely located inside the outer edge of the first substrate 11 and the outer edge of the second substrate 12. In this case, the protective material 41 becomes more difficult to come into contact with objects other than the glass panel unit 1.
  • FIG. 13 is a cross-sectional view corresponding to FIG. 5 of the glass panel unit 1 of the modified example 7.
  • the shapes of the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12 are different from those of the above embodiment.
  • the first edge surface 321 is a curved surface that is curved so that the portion closer to the outer edge is closer to the first surface 31 in the thickness direction of the first substrate 11, and is arcuate in a cross section orthogonal to the circumferential direction of the first substrate 11.
  • the second edge surface 332 is a curved surface that is curved so that the portion closer to the outer edge is closer to the fourth surface 34 in the thickness direction of the second substrate 12, and is arcuate in a cross section orthogonal to the circumferential direction of the second substrate 12.
  • the encapsulant 40 of this modified example is also located inside the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12, as in the modified example 1.
  • FIG. 14 is a cross-sectional view corresponding to FIG. 5 of the glass panel unit 1 of the modified example 8.
  • the shapes of the first surface 31 of the first substrate 11 and the fourth surface 34 of the second substrate 12, and the first edge surface 321 and the second substrate 12 of the first substrate 11 are obtained.
  • Each shape of the second edge surface 332 of the above embodiment is different from that of the above embodiment.
  • the first surface 31 of the first substrate 11 is a plane orthogonal to the thickness direction of the first substrate 11 as a whole, and does not have an inclined edge surface 311 (see FIG. 5).
  • the fourth surface 34 of the second substrate 12 is a plane orthogonal to the thickness direction of the second substrate 12 as a whole, and does not have an inclined edge surface 341 (see FIG. 5).
  • the first edge surface 321 of the first substrate 11 is a flat surface that is inclined so that the portion closer to the outer edge is closer to the first surface 31 in the thickness direction of the first substrate 11.
  • the second edge surface 332 of the second substrate 12 is a flat surface inclined so that the portion closer to the outer edge is closer to the fourth surface 34 in the thickness direction of the second substrate 12.
  • the encapsulant 40 of this modified example is also located inside the first edge surface 321 of the first substrate 11 and the second edge surface 332 of the second substrate 12, as in the modified example 1.
  • Modification 9 15 to 17 show the glass panel unit 1 of the modified example 9.
  • the glass panel unit 1 of this modification includes a third substrate 13 in addition to the first substrate 11 and the second substrate 12.
  • the third substrate 13 is located on the opposite side of the second substrate 12 from the first substrate 11. That is, the first substrate 11, the second substrate 12, and the third substrate 13 are arranged in this order in the thickness direction of the glass panel unit 1.
  • the second substrate 12 and the third substrate 13 are located at intervals in the thickness direction of the glass panel unit 1 and face each other.
  • the third substrate 13 is formed in a flat plate shape.
  • the third substrate 13 is parallel to the second substrate 12.
  • the third substrate 13 has the same shape and size as the second substrate 12 when viewed in the thickness direction of the third substrate 13. That is, the third substrate 13 is formed in a substantially trapezoidal shape when viewed in the thickness direction of the third substrate 13.
  • the outer edge of the second substrate 12 (outer edge of the second glass panel 22) and the outer edge of the third substrate 13 (outer edge of the third glass panel 23 described later) overlap. ..
  • the third substrate 13 includes the third glass panel 23.
  • the third substrate 13 of this modification is composed of only the third glass panel 23.
  • the third glass panel 23 has translucency. That is, the third substrate 13 has translucency.
  • the third glass panel 23 may be appropriately coated.
  • the third glass panel 23 is, for example, tempered glass.
  • the third glass panel 23 may be either physically tempered glass or chemically tempered glass. Further, the type of the third glass panel 23 is not limited.
  • the third glass panel 23 may be high strain point glass, soda lime glass, non-alkali glass, quartz glass, or the like. Further, the second glass panel 22 and the third glass panel 23 may be the same type of glass or different types of glass.
  • the third substrate 13 has a fifth surface 35, which is one of the surfaces on both sides of the third substrate 13 in the thickness direction, and a sixth surface 36, which is a surface opposite to the fifth surface 35. are doing.
  • one of the surfaces on both sides of the third glass panel 23 in the thickness direction is the fifth surface 35
  • the other surface is the sixth surface 36.
  • the fifth surface 35 is a surface of the third substrate 13 on the second substrate 12 side, and faces the fourth surface 34 of the second substrate 12.
  • the glass panel unit 1 further includes a second sealing material 42, a second spacer 52, and a second protective material 72.
  • the second sealing material 42, the second spacer 52, and the second protective material 72 are located between the second substrate 12 and the third substrate 13.
  • the second sealing material 42 is located between the outer edge portion of the second substrate 12 and the outer edge portion of the third substrate 13.
  • the second sealing material 42 is formed in a frame shape along the outer edge of the second substrate 12 and the outer edge of the third substrate 13 when viewed in the thickness direction of the glass panel unit 1.
  • the second sealing material 42 is located inside the outer edge (end face 15) of the second substrate 12 and the outer edge (end face) of the third substrate 13 when viewed in the thickness direction of the glass panel unit 1.
  • the second sealing material 42 seals between the second substrate 12 and the third substrate 13.
  • the second sealing material 42 is formed of, for example, a highly airtight resin.
  • the second sealing material 42 is airtightly bonded to the facing surfaces (that is, the fourth surface 34 and the fifth surface 35) of the second substrate 12 and the third substrate 13 over the entire circumference thereof. ing. As a result, the second substrate 12 and the third substrate 13 are connected via the second sealing material 42.
  • a space 62 surrounded by a frame-shaped second sealing material 42 is formed between the second substrate 12 and the third substrate 13.
  • this space 62 is referred to as a "second space 62".
  • the second space 62 is sealed by the second sealing material 42.
  • the second space 62 is filled with a dry gas (for example, a dry rare gas such as argon or dry air).
  • the second protective material 72 is located on the outside of the second sealing material 42.
  • the second protective material 72 is exposed to the outside of the glass panel unit 1.
  • the second protective material 72 is preferably formed of a material having a higher strength than the second sealing material 42.
  • the second protective material 72 is formed of, for example, a resin.
  • the resin is, for example, a silicon resin, an ABS resin, a urethane resin, an acrylic resin, an epoxy resin, or the like.
  • the second protective material 72 is not limited to these resins.
  • the second protective material 72 may be formed of a material other than resin such as metal, glass or rubber.
  • the second protective material 72 may be formed of a material having the same strength as the second sealing material 42 or a material having a lower strength than the second sealing material 42.
  • the second protective material 72 is formed in a frame shape surrounding the second sealing material 42 when viewed in the thickness direction of the glass panel unit 1, and is opposite to the outer surface of the second sealing material 42 (opposite to the second space 62). Along the side surface).
  • the second encapsulant 42 and the second protective material 72 in this modification are the same as the method in which the encapsulant 40 and the protective material 41 of the above embodiment are joined to the first substrate 11 and the second substrate 12. By the method, it is bonded to the second substrate 12 and the third substrate 13. Therefore, the second protective material 72 is difficult to peel off from the second substrate 12 and the third substrate 13.
  • the second encapsulant 42 and the second protective material 72 are based on a method in which the encapsulant 40 and the protective material 41 of the above-mentioned modifications 1 to 8 are joined to the first substrate 11 and the second substrate 12. It may be bonded to the second substrate 12 and the third substrate 13 in the same manner.
  • the second spacer 52 is located inside the second sealing material 42.
  • the second spacer 52 is formed in a frame shape along the inner surface (the surface on the second space 62 side) of the second sealing material 42 when viewed in the thickness direction of the glass panel unit 1.
  • the second spacer 52 is hollow, and a space 53 is formed inside the second spacer 52.
  • the space 53 is filled with the desiccant 54.
  • the desiccant 54 is, for example, silica gel.
  • the second spacer 52 is formed with a ventilation hole 55 that connects the space 53 to the second space 62 that is outside the second spacer 52.
  • the third glass panel 23 is prepared in addition to the first glass panel 21 and the second glass panel 22.
  • the third glass panel 23 is formed, for example, by cutting out from a base material in a predetermined shape.
  • the manufacturing method of the glass panel unit 1 of this modified example further includes a second joining step and a second protective material injection step.
  • the second joining step is a step of airtightly joining the second substrate 12 and the third substrate 13 via the second sealing material 42 with the second spacer 52 sandwiched between them.
  • a fluid resin serving as the second protective material 72 is provided in a state where the frame-shaped second sealing material 42 is arranged between the second substrate 12 and the third substrate 13. This is the process of injecting from the outside.
  • the portion composed of the glass panel unit 1 of the above embodiment may be composed of the glass panel units 1 of the modifications 1 to 8.
  • the second space 62 is formed between the second substrate 12 and the third substrate 13, but the second space 62 is not formed, and the second substrate 12 and the second substrate 12 and the second substrate 13 are formed through the film. 3
  • the substrate 13 may be joined.
  • the film is, for example, a film formed of EVA (Ethylene-Vinyl Acetate) resin or PVB (polyvinyl butyral) resin.
  • a fourth substrate including the fourth glass panel is prepared, the third substrate 13 is bonded to the second substrate 12 via the first film, and the third substrate 13 is bonded to the second substrate 12 via the second film.
  • the fourth substrate may be joined to the first substrate 11.
  • the glass panel unit (1) of the first aspect has the following configuration.
  • the glass panel unit (1) includes a first substrate (11), a second substrate (12), a sealing material (40), and a protective material (41).
  • the first substrate (11) includes a first glass panel (21).
  • the second substrate (12) includes a second glass panel (22).
  • One of the surfaces on both sides of the first substrate (11) in the thickness direction is the first facing surface (second surface 32).
  • One of the surfaces on both sides of the second substrate (12) in the thickness direction is the second facing surface (third surface 33).
  • the first facing surface and the second facing surface face each other.
  • the sealing material (40) is located between the first facing surface and the second facing surface and seals between them.
  • the protective material (41) is filled and sealed between the first edge surface (321), which is the outer edge portion of the first facing surface, and the second edge surface (332), which is the outer edge portion of the second facing surface. Cover the material (40) from the outside. The distance between the first edge surface (321) and the second edge surface (332) becomes longer as the distance from the sealing material (40) becomes larger.
  • the protective material (41) is inserted between the first edge surface (321) of the first substrate (11) and the second edge surface (332) of the second substrate (12). Therefore, it is difficult to peel off from the first substrate (11) and the second substrate (12). Further, the distance between the first edge surface (321) and the second edge surface (332) becomes longer as the distance from the sealing material (40) increases, so that the first substrate (11) of the protective material (41) becomes longer. And the contact area with respect to the second substrate (12) can be increased. Therefore, the bonding strength of the protective material (41) to the first substrate (11) and the second substrate (12) can be increased.
  • the glass panel unit (1) of the second aspect can be realized by combining with the first aspect.
  • the glass panel unit (1) of the second aspect has the following configuration.
  • the portion of the first edge surface (321) closer to the outer edge is closer to the surface of the first substrate (11) opposite to the first facing surface.
  • the contact area of the protective material (41) with respect to the first edge surface (321) can be increased to increase the bonding strength of the protective material (41) with respect to the first substrate (11).
  • the glass panel unit (1) of the third aspect can be realized by combining with the second aspect.
  • the glass panel unit (1) of the third aspect has the following configuration.
  • the dimension (L1) from the outer edge to the inner edge of the first edge surface (321) when the first edge surface (321) is viewed in the thickness direction of the first substrate (11) is the thickness direction of the first substrate (11). It is larger than the dimension (L2) of the first edge surface (321) in.
  • the protective material (41) can be easily injected into the inner region between the first substrate (11) and the second substrate (12), and the protective material (41) can be used as the first substrate. It becomes more difficult to peel off from (11) and the second substrate (12).
  • the glass panel unit (1) of the fourth aspect can be realized by combining with the second aspect.
  • the glass panel unit (1) of the fourth aspect has the configuration shown below.
  • the dimension (L1) from the outer edge to the inner edge of the first edge surface (321) when the first edge surface (321) is viewed in the thickness direction of the first substrate (11) is the thickness direction of the first substrate (11). It is smaller than the dimension (L2) of the first edge surface (321) in.
  • the protective material (41) can be easily injected between the first substrate (11) and the second substrate (12).
  • the glass panel unit (1) of the fifth aspect can be realized by combining with any one of the second to fourth aspects.
  • the glass panel unit (1) of the fifth aspect has the following configuration.
  • the portion of the second edge surface (332) closer to the outer edge is closer to the surface of the second substrate (12) opposite to the second facing surface.
  • the contact area of the protective material (41) with respect to the second edge surface (332) can be increased to increase the bonding strength of the protective material (41) with respect to the second substrate (12).
  • the glass panel unit (1) of the sixth aspect can be realized by combining with any one of the second to fifth aspects.
  • the glass panel unit (1) of the sixth aspect has the configuration shown below.
  • the outer edge of the first edge surface (321) is located on the side opposite to the first facing surface of the first substrate (11) with respect to the center in the thickness direction of the first substrate (11).
  • the protective material (41) can be easily injected between the first substrate (11) and the second substrate (12).
  • the glass panel unit (1) of the seventh aspect can be realized by combining with any one of the first to sixth aspects.
  • the glass panel unit (1) of the seventh aspect has the following configuration.
  • the protective material (41) protrudes outward from the outer edge of the first substrate (11) and the outer edge of the second substrate (12).
  • the first substrate (11) and the second substrate (12) are protected by the portion of the protective material (41) that protrudes outward from the first substrate (11) and the second substrate (12). be able to.
  • the glass panel unit (1) of the eighth aspect can be realized by combining with any one of the first to sixth aspects.
  • the glass panel unit (1) of the eighth aspect has the following configuration.
  • the protective material (41) does not protrude outside the outer edge of the first substrate (11) and the outer edge of the second substrate (12).
  • the manufacturing method of the glass panel unit (1) of the ninth aspect has the following configuration.
  • the method for manufacturing the glass panel unit (1) is a method for manufacturing the glass panel unit (1) according to any one of the first to eighth aspects, wherein the first edge surface (321) and the second edge surface (321) are manufactured. Includes a protective material injection step of injecting the protective material (41) between the 332) and the protective material (41).
  • the protective material (41) can be easily injected between the first edge surface (321) and the second edge surface (332).

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  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

L'invention concerne un ensemble vitre et un procédé de fabrication d'ensemble vitre, pour lequel un matériau de protection n'est pas susceptible de se détacher. Un ensemble vitre (1) comporte une première plaque de base (11) comprenant une première vitre (21), une seconde plaque de base (12) comprenant une seconde vitre (22), un matériau d'étanchéité (40), et un matériau de protection (41). Une première face opposée (deuxième surface 32), correspondant à l'une des deux surfaces dans le sens de l'épaisseur de la première plaque de base (11), fait face à une seconde face opposée (troisième surface 33), correspondant à l'une des deux surfaces dans le sens de l'épaisseur de la seconde plaque de base (12). Le matériau d'étanchéité (40) est situé entre la première face opposée et la seconde face opposée, et scelle l'espace entre elles. Le matériau de protection (41) remplit l'espace entre une première face de bord (321), correspondant à une partie bord externe de la première face opposée, et une seconde face de bord (332), correspondant à une partie bord externe de la seconde face opposée, et recouvre le matériau d'étanchéité (40) depuis l'extérieur. L'intervalle entre la première face de bord (321) et la seconde face de bord (332) augmente lorsque l'intervalle s'éloigne du matériau d'étanchéité (40) vers l'extérieur.
PCT/JP2020/009325 2019-03-28 2020-03-05 Ensemble vitre et procédé de fabrication d'ensemble vitre WO2020195662A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220259916A1 (en) * 2019-06-26 2022-08-18 Guardian Europe S.A.R.L. Heat-insulating glass panel
WO2022204021A1 (fr) * 2021-03-25 2022-09-29 V-Glass, Inc. Profil de bord à faible perte de chaleur pour verre isolant sous vide

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156183U (fr) * 1979-04-24 1980-11-10
WO2000061383A2 (fr) * 1999-04-12 2000-10-19 Gianfranco Barban Procede de fabrication de substances transparentes, telles que du verre ou analogue, et articles ainsi obtenus
WO2002044097A1 (fr) * 2000-11-30 2002-06-06 Nippon Sheet Glass Co., Ltd. Panneau de verre et procede de fabrication correspondant
WO2005000762A1 (fr) * 2003-06-30 2005-01-06 Nippon Sheet Glass Company, Limited Element de protection de tranche, panneau de verre muni de l'element de protection, et procede permettant de proteger la tranche d'un panneau de verre
US20100279038A1 (en) * 2009-05-01 2010-11-04 Guardian Industries Corp Edge profiles for vacuum insulated glass (VIG) units, and/or VIG unit including the same
WO2019093325A1 (fr) * 2017-11-10 2019-05-16 日本板硝子株式会社 Panneau de verre

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6444281B1 (en) * 1999-10-13 2002-09-03 Guardian Industries Corp. Vacuum IG window unit with spacers between first and second edge seals

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156183U (fr) * 1979-04-24 1980-11-10
WO2000061383A2 (fr) * 1999-04-12 2000-10-19 Gianfranco Barban Procede de fabrication de substances transparentes, telles que du verre ou analogue, et articles ainsi obtenus
WO2002044097A1 (fr) * 2000-11-30 2002-06-06 Nippon Sheet Glass Co., Ltd. Panneau de verre et procede de fabrication correspondant
WO2005000762A1 (fr) * 2003-06-30 2005-01-06 Nippon Sheet Glass Company, Limited Element de protection de tranche, panneau de verre muni de l'element de protection, et procede permettant de proteger la tranche d'un panneau de verre
US20100279038A1 (en) * 2009-05-01 2010-11-04 Guardian Industries Corp Edge profiles for vacuum insulated glass (VIG) units, and/or VIG unit including the same
WO2019093325A1 (fr) * 2017-11-10 2019-05-16 日本板硝子株式会社 Panneau de verre

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220259916A1 (en) * 2019-06-26 2022-08-18 Guardian Europe S.A.R.L. Heat-insulating glass panel
WO2022204021A1 (fr) * 2021-03-25 2022-09-29 V-Glass, Inc. Profil de bord à faible perte de chaleur pour verre isolant sous vide

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