JP2021134491A - Glass module, glass unit and glass window - Google Patents

Abstract

To provide a glass module, glass unit and glass window, which can efficiently prevent thermal cracking of a glass plate during fire disaster.SOLUTION: A surface of a glass module 10 faces a surface of a flame shielding member 20. The glass module can be assembled with the flame shielding member 20. The glass module comprises: a glass plate 1 including a first outer plate surface 5 and a second outer plate surface 6 disposed on a rear side of the first outer plate surface 5; and a heat conducting member 11 disposed to be adjacent to the first outer plate surface 5 and the second outer plate surface 6. The glass plate 1 includes a flame shielding area that can be covered with the flame shielding member 20 on the plate surfaces 5, 6. The heat conducting member 11 has higher heat conductivity than the glass plate 1, and is configured such that it can be disposed at least at a part of the flame shielding area.SELECTED DRAWING: Figure 2

Description

The present invention relates to a glass module including a glass plate, a glass unit, and a glass window.

Patent Document 1 discloses a double glazing unit in which the peripheral edge of a glass plate is covered with a flame-shielding member such as a frame. The glass plate of the double glazing unit is composed of heat-resistant glass and Low-E glass, and when a fire breaks out on the heat-resistant glass side, the central portion of the heat-resistant glass directly receives combustion heat. Therefore, the heat-resistant glass tends to be thermally cracked due to the temperature difference between the central portion and the edge surface because the central portion becomes hot and the edge surface becomes the coldest.

Therefore, in the glass unit shown in Patent Document 1, in order to reduce the temperature difference between the central portion of the heat-resistant glass and the edge surface, the end portion of the glass unit comes into contact with the frame in a state of surface contact with the edge surface of the heat-resistant glass. It is equipped with a heat conductive member. With this configuration, heat is transferred from the frame, which has become hot due to the fire, to the edge surface of the heat-resistant glass via the heat conductive member. As a result, the temperature of the edge surface of the heat-resistant glass rises, and as a result, the temperature difference between the central portion of the heat-resistant glass and the edge surface can be reduced, and thermal cracking can be prevented.

Japanese Unexamined Patent Publication No. 2011-220029

In the double glazing unit of Patent Document 1, a heat conductive member is provided over the edge surface and the frame of the heat-resistant glass. That is, the temperature rise of the edge surface is inevitable for the temperature rise of the edge surface, and when the frame body is not directly exposed to the flame, the temperature rise of the edge surface becomes slow and the heat cracking is still likely to occur. Further, since the end portion of the heat conductive member is brought into contact with the frame body, the heat conductive member has a poor dimensional accuracy in the direction perpendicular to the plate surface between the heat-resistant glass and the frame body. Insufficient contact between the part and the frame makes it difficult to conduct heat to the edge surface. Therefore, the heat conductive member needs to improve the dimensional accuracy in the direction perpendicular to the plate surface between the heat-resistant glass and the frame. Further, when the frame is made of a member having low thermal conductivity, the temperature of the end face of the heat-resistant glass cannot be expected to rise sufficiently even through the thermal conductive member, so there is room for improvement in this respect as well. rice field.

In view of the above circumstances, there is a demand for a glass module, a glass unit, and a glass window that can efficiently prevent thermal cracking of a glass plate in the event of a fire.

The characteristic configuration of the glass module according to the present invention is a glass module that faces the flame-shielding member on a surface and can be assembled to the flame-shielding member, and is a first outer plate surface and a back side of the first outer plate surface. A glass plate having a second outer plate surface provided on the surface of the glass plate and a heat conductive member arranged adjacent to the first outer plate surface and the second outer plate surface are provided, and the glass plate has a plate surface. Has a flame-shielding region that can be covered by the flame-shielding member, the heat-conducting member has a higher thermal conductivity than the glass plate, and is configured to be displaceable in at least a part of the flame-shielding region. There is a point.

When a fire breaks out in the area facing either one of the glass plates, the non-flame-shielding area not covered by the flame-shielding member is directly exposed to the flame, and the flame-shielding area is directly exposed by the flame-shielding member. Not exposed to flames. As a result, the non-flame-shielding region becomes hot and the flame-shielding region becomes cold, and thermal stress is generated in the flame-shielding region that restrains the thermal expansion of the non-flame-shielding region, which may cause thermal cracking of the glass plate. be.

Therefore, the glass module having this configuration includes a heat conductive member arranged adjacent to the first outer plate surface and the second outer plate surface of the glass plate, and the heat conductive member has a higher thermal conductivity than the glass plate. It has and is configured to be displaceable in at least a part of the flame shield area. Therefore, heat conduction from the non-flame-shielding region to the flame-shielding region is rapidly performed in the glass plate. As a result, when a fire breaks out in the compartment, the heat of combustion is transferred to the non-flame-shielding region of the glass plate exposed in the compartment, and from the non-flame-shielding region to the flame-shielding region of the glass plate via the heat conductive member. It is transmitted to. As a result, the temperature of the flame-shielding region rises and the temperature difference between the non-flame-shielding region and the flame-shielding region becomes small, so that the thermal cracking phenomenon of the glass plate can be less likely to occur. Further, since the heat conductive member may be arranged adjacent to the first outer plate surface and the second outer plate surface of the glass plate, dimensional accuracy in the direction perpendicular to the plate surface of the glass plate is not required. Therefore, the thickness of the heat conductive member can be easily adjusted within the dimension range equal to or less than the gap between the glass plate and the flame shield member in consideration of the specifications of the glass plate and the thermal conductivity of the heat conductive member. As described above, the glass module having this configuration can efficiently prevent thermal cracking of the glass plate in the event of a fire.

Another characteristic configuration is that the flame-shielding region is provided on the plate surface of the peripheral edge of the glass plate and is 10 mm or more and 30 mm or less from the end surface of the glass plate.

According to this configuration, since the flame-shielding region is provided on the plate surface of the peripheral portion of the glass plate, the glass plate can conduct heat from the central portion to the peripheral portion via the heat conductive member. As a result, thermal cracking is less likely to occur in the glass plate. In addition, the allowance (insertion amount) of the glass plate for the flame-shielding member is stipulated to be 10 mm or more in the "Japanese Architecture Standard Specifications for Building Work / Explanation JASS17 Glass Work" (hereinafter referred to as JASS17). ing. On the other hand, if the length of the flame-shielding region in the vertical direction exceeds 30 mm, the flame-shielding member inhibits heating of the peripheral portion of the glass plate, resulting in a large temperature difference between the central portion and the peripheral portion of the glass plate. As a result, thermal cracking of the glass plate is likely to occur. Therefore, the flame-shielding region of this configuration is configured to be 10 mm or more and 30 mm or less from the end face of the glass plate.

Another characteristic configuration is that the heat conductive member is arranged on at least a part of the end face of the glass plate.

According to this configuration, since the heat conductive member is arranged not only on the plate surface of the peripheral portion of the glass plate but also on at least a part of the end surface, the heat in the central portion of the glass plate directly exposed to the flame is heat. The conductive member efficiently transfers heat to the end face of the glass plate. As a result, the temperature of the end face of the glass plate tends to rise, so that the temperature difference between the central portion and the peripheral portion of the glass plate can be further reduced. Therefore, in the glass plate, it is possible to reliably prevent thermal cracking at the peripheral portion of the plate glass, which is far from the central portion and whose temperature rises slowly.

Another characteristic configuration is that the heat conductive member is arranged only in the flame-shielding region.

According to this configuration, since the heat conductive member is not arranged outside the flame shielding region, the heat conductive member is arranged on the glass plate in a state where it cannot be visually recognized from the outside. As a result, it is possible to prevent thermal cracking of the glass plate in a state where the heat conductive member does not affect the appearance of the glass plate.

Another characteristic configuration is that the glass plate further comprises a non-flame-shielding region adjacent to the flame-shielding region and not covered by the flame-shielding member, and the heat-conducting member is the first in the non-flame-shielding region. 1 It is a point that it can be arranged on at least one of the outer plate surface and the second outer plate surface.

According to this configuration, since the heat conductive member is also arranged in the non-flame shield region, the combustion heat received by the non-flame shield region of the glass plate is easily transferred to the flame shield region via the heat conductive member. As a result, the temperature difference between the non-flame-shielding region and the flame-shielding region of the glass plate can be quickly reduced. Further, by arranging the heat conductive member in a portion of the non-flame shield region adjacent to the flame shield region, the range of the heat conductive member in the non-flame shield region is reduced, and the heat conduction given to the appearance of the glass plate is reduced. It is possible to minimize the influence of the members.

Another characteristic configuration is that the heat conductive member is configured so that at least a part thereof can come into contact with the flame shield member.

According to this configuration, the heat conductive member transfers the combustion heat received by the flame shield member to the flame shield region of the glass plate. As a result, in the event of a fire, in addition to the heat in the non-flame-shielding region of the glass plate, the heat of the flame-shielding member is also transferred to the flame-shielding region of the glass plate via the heat conductive member, so that the heat is shielded from the non-flame-shielding region of the glass plate. The temperature difference from the flame region can be reduced more quickly.

Another characteristic configuration is that the heat conductive member is configured so as not to come into contact with the flame shield member.

According to this configuration, since the heat conductive member does not come into contact with the flame shield member, dimensional accuracy in the direction perpendicular to the plate surface of the glass plate is not required. Therefore, the thickness of the heat conductive member can be easily adjusted within the dimension range equal to or less than the gap between the glass plate and the flame shield member in consideration of the specifications of the glass plate and the thermal conductivity of the heat conductive member.

Another characteristic configuration is that the heat conductive member has a higher absorption rate of near infrared rays than the glass plate.

When the flame-shielding member is heated in the event of a fire, the radiant heat generated from the flame-shielding member is propagated by near infrared rays. However, since the glass plate transmits near infrared rays, the temperature of the flame-shielding region of the glass plate is unlikely to rise due to the radiant heat of the flame-shielding member. Therefore, the heat conductive member in this configuration has a higher absorption rate of near infrared rays than the glass plate. As a result, the flame-shielding region of the glass plate can easily receive the radiant heat of the flame-shielding member by the heat conductive member, so that the temperature difference between the non-flame-shielding region and the flame-shielding region of the glass plate can be reduced more quickly. ..

Another characteristic configuration is that the heat conductive member has an emissivity of 0.1 or more.

As in this configuration, when the emissivity of the heat conductive member is 0.1 or more, the heat loss in which the radiant heat from the flame shield member is reflected by the heat conductive member is suppressed, and the heat loss region is reached via the heat conductive member. Radiant heat can be transferred efficiently.

Another characteristic configuration is that the heat conductive member includes a metal foil and an adhesive layer, and the adhesive layer has an adhesive and heat conductive fine particles.

According to this configuration, since the heat conductive member includes an adhesive layer having an adhesive, the heat conductive member can be easily fixed to the glass plate. Further, since the heat conductive member includes the metal foil and has the heat conductive fine particles in the adhesive layer, the heat conductive member can surely transfer the heat of the non-flame-shielding region of the glass plate toward the flame-shielding region.

Another characteristic configuration is that the thermal conductivity of the metal foil is 50 W / mK or more.

For example, the thermal conductivity of a glass plate made of soda glass is generally less than 1 W / mK. On the other hand, when the heat conductivity of the metal foil is 50 W / mK or more as in this configuration, the heat transfer speed of the heat conductive member is remarkably improved as compared with the glass plate. As a result, the heat conductive member can quickly transfer the combustion heat from the non-flame-shielding region of the glass plate to the flame-shielding region, and the temperature difference between the non-flame-shielding region and the flame-shielding region of the glass plate can be reduced. Can be done.

Another characteristic configuration is that the heat conductive fine particles have a higher thermal conductivity than the pressure-sensitive adhesive.

Since the adhesive layer of the heat conductive member has an adhesive, the thermal conductivity tends to be lower than that of the metal foil. However, by making the thermal conductivity of the heat conductive fine particles higher than that of the pressure-sensitive adhesive as in this configuration, the heat conductivity of the pressure-sensitive adhesive layer can be effectively increased in the heat-conducting member.

Another characteristic configuration is that the pressure-sensitive adhesive layer has a content of the heat conductive fine particles of 50% by weight or more and 90% by weight or less.

When the content of the heat conductive fine particles in the adhesive layer is 50% by weight or more and 90% by weight or less as in this configuration, the heat conductive member can secure both the heat conductivity and the adhesiveness in the adhesive layer. .. If the heat conductive fine particles in the pressure-sensitive adhesive layer are less than 50% by weight, the pressure-sensitive adhesive layer cannot obtain sufficient heat conductivity. Further, when the heat conductive fine particles exceed 90% by weight in the pressure-sensitive adhesive layer, the ratio of the pressure-sensitive adhesive becomes too low, so that the pressure-sensitive adhesive force is lowered and the heat-conducting member is easily peeled off from the glass plate.

Another characteristic configuration is that the pressure-sensitive adhesive layer has a thickness of 10 μm or more and 100 μm or less.

When the thickness of the adhesive layer is 10 μm or more and 100 μm or less as in this configuration, the heat conductive member can secure both thermal conductivity and adhesiveness in the adhesive layer. If the thickness of the adhesive layer of the heat conductive member is smaller than 10 μm, peeling may occur due to the difference in thermal expansion between the metal foil and the glass plate in the event of a fire. On the other hand, when the thickness of the pressure-sensitive adhesive layer exceeds 100 μm, the heat conductivity of the heat-conducting member including the pressure-sensitive adhesive layer may be lowered due to the influence of the pressure-sensitive adhesive.

Another characteristic configuration is that the heat conductive fine particles have a particle size of 10 μm or more and 100 μm or less.

When the particle size of the heat conductive fine particles is 10 μm or more and 100 μm or less as in this configuration, the heat conductive member can surely secure the heat conductivity in the adhesive layer. If the particle size of the heat conductive fine particles is less than 10 μm, the heat conductive fine particles are unevenly arranged in the adhesive layer, so that uniform heat conductivity may not be ensured. On the other hand, when the particle size of the heat conductive fine particles exceeds 100 μm, the surface area of the heat conductive fine particles becomes small, so that the heat conductivity of the heat conductive member may be lowered.

Another characteristic configuration is that the heat conductive fine particles are metal fine particles.

When the heat conductive fine particles are metal fine particles as in this configuration, the heat conductivity can be reliably imparted to the adhesive layer.

The characteristic configuration of the glass unit according to the present invention is that it includes a glass module having the above configuration and a flame-shielding member that sandwiches the peripheral edge of the glass plate.

In the glass unit having this configuration, a glass plate on which a heat conductive member having a higher thermal conductivity than the glass plate is arranged is sandwiched by the flame shield member. As a result, when a fire breaks out in the compartment facing one of the glass plates, the heat of combustion is transferred to the non-flame-shielding region of the glass plate exposed in the compartment, and from the non-flame-shielding region to the flame-shielding region. It is transmitted to the peripheral edge of the glass plate via the heat conductive member of. As a result, the temperature of the peripheral portion rises and the temperature difference between the central portion and the peripheral portion of the glass plate becomes small, so that the thermal cracking phenomenon of the glass plate can be less likely to occur.

Another characteristic configuration is that the flame-shielding member is configured to sandwich the glass plate between surfaces.

According to this configuration, since the flame-shielding member sandwiches the glass plate between the surfaces, the glass plate can be stably held.

Another characteristic configuration is that the flame-shielding member is a fixed frame of a sash.

According to this configuration, since the flame-shielding member is a fixed frame of the sash, the peripheral portion of the glass plate can be efficiently heated without the flame-shielding member disappearing in the event of a fire.

Another characteristic configuration is that the thermal conductivity of the fixed frame is 20 W / mK or more and 250 W / mK or less.

By setting the thermal conductivity of the fixed frame to be high as in this configuration, heat can be easily transferred from the fixed frame to the peripheral edge of the glass plate. As a result, the temperature difference between the central portion and the peripheral portion of the glass plate can be reduced. If the thermal conductivity of the fixed frame exceeds 250 W / mk, the cost of the fixed frame becomes high. Therefore, the thermal conductivity of the fixed frame in this configuration is set to 20 W / mK or more and 250 W / mK or less. ..

The characteristic configuration of the glass window according to the present invention is that the glass module having the above configuration is sandwiched and fixed by the flame shield member.

According to this configuration, the glass module sandwiched and fixed by the flame-shielding member can prevent thermal cracking of the glass plate and stably maintain the fire protection performance.

It is a front view of the glass unit of 1st Embodiment. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. It is an exploded view of the glass unit of 1st Embodiment. It is sectional drawing of the heat conduction member. It is a partial cross-sectional view of the glass unit of the 2nd Embodiment. It is a partial cross-sectional view of the glass unit of 3rd Embodiment. It is a partial cross-sectional view of the glass unit of 4th Embodiment. It is a partial cross-sectional view of the glass unit of 5th Embodiment. It is a partial cross-sectional view of the glass unit of another embodiment. It is a partial cross-sectional view of the glass unit of another embodiment.

[First Embodiment]
The first embodiment of the glass unit 100 according to the present invention will be described with reference to FIGS. 1 to 4. FIG. 2 shows the completed glass unit 100, and FIG. 3 shows the state of the glass unit 100 before assembly. The glass unit 100 includes a glass module 10 and a flame shield member 20. The glass module 10 includes a glass plate 1 and a heat conductive member 11 described later.

As shown in FIGS. 1 and 2, the glass plate 1 is a rectangular single-layer glass having peripheral edges 8 on four sides, and is formed on a flame-shielding member 20 having recesses along the peripheral edges 8 of the single-layer glass. It is fitted and fixed.

The flame-shielding member 20 is composed of a frame body 21. The glass plate 1 faces the flame-shielding member 20 on a surface and is configured to be able to be assembled to the flame-shielding member 20. In the present embodiment, the frame body 21 is a fixed frame of a sash having a recess. The thermal conductivity of the frame 21 is 20 W / mK or more and 250 W / mK or less. The peripheral portion 8 of the glass plate 1 is sandwiched and fixed to the backup material 23 and the elastic support 24 in the recess of the frame body 21. A setting block 22 having a protective function for the end surface 4 of the glass plate 1 is installed on the bottom surface of the recess of the frame body 21 into which the four sides of the glass plate 1 are fitted. The setting blocks 22 need only be installed at several locations at the lower end of the glass plate 1 so as to sufficiently disperse and support the weight of the glass plate 1, and are provided over the entire area of the four sides of the glass plate 1. No need. Further, in order to fix the glass plate 1 with the frame body 21, a backup material 23 is provided between the glass plate 1 and the frame body 21. Further, in order to improve the waterproof property between the glass plate 1 and the frame 21, an elastic support 24 as a sealing material is provided on the upper part of the backup material 23. In this way, the glass plate 1 is configured to be sandwichable between the frame body 21 (flame shield member 20) via the elastic support 24. As a result, the glass plate 1 can be supported by the elastic support 24 in a state where the gap between the glass plate 1 and the frame 21 (flame shield member 20) is filled.

The glass plate 1 has a first outer plate surface 5 and a second outer plate surface 6 provided on the back side of the first outer plate surface 5, and is composed of a single-layer tempered glass having a compressive stress of 150 MPa or more. .. The glass plate 1 has outer plate surfaces 5 and 6 having a flame-shielding region 2 that can be covered by the frame body 21 and a non-flame-shielding region 3 that is visible from the outside and is not covered by the flame-shielding member 20. .. As shown in FIG. 1, the glass plate 1 is formed in a rectangular shape, and flame-shielding regions 2 are provided on peripheral edges 8 on four sides. Here, the flame-shielding region 2 refers to the first outer plate surface 5 or the first outer plate surface 5 or the second outer plate surface 6 when the first outer plate surface 5 or the second outer plate surface 6 of the glass plate 1 is exposed to a flame from a direction perpendicular to the plate surface. 2 It means a plate surface of the outer plate surface 6 from which the flame is blocked by the frame body 21. That is, the flame-shielding region 2 is a region that is orthographically projected onto the glass plate 1 from the flame-shielding member 20. The flame-shielding region 2 is preferably 10 mm or more and 30 mm or less from the end surface 4 of the glass plate 1. The JASS 17 stipulates that the engagement allowance (insertion amount) of the glass plate 1 with respect to the flame-shielding member 20 is 10 mm or more. On the other hand, when the length of the flame-shielding region 2 in the vertical direction exceeds 30 mm, the flame-shielding member 20 inhibits the heating of the peripheral edge portion 8 of the glass plate 1, and the central portion 7 and the peripheral edge portion 8 of the glass plate 1 Thermal cracking of the glass plate 1 is likely to occur due to the large temperature difference. Further, when the glass plate 1 is the above-mentioned tempered glass, it becomes easy to suppress the thermal cracking of the glass plate 1 due to the temperature difference between the central portion 7 and the peripheral portion 8 of the glass plate 1. Further, as shown in FIG. 2, the end surface 4 of the glass plate 1 is polished into a curved surface shape so as to be smooth in order to reduce the risk of damage during transportation or assembly.

The glass plate 1 includes a heat conductive member 11 arranged adjacent to the first outer plate surface 5 and the second outer plate surface 6 (flame shield region 2) of the peripheral edge portion 8. The heat conductive member 11 has a higher thermal conductivity than the glass plate 1 and is configured to be displaceable in at least a part of the flame shield region 2. That is, the heat conductive member 11 may be arranged in the entire flame-shielding region 2 or may be arranged in a part of the flame-shielding region 2. In the example of FIG. 2, the heat conductive member 11 is arranged in the entire flame-shielding region 2. In the present embodiment, the heat conductive member 11 is formed in a sheet shape and is fixed in a state of being in surface contact with the outer plate surfaces 5 and 6 of the flame shielding region 2. Here, the state of surface contact means that the heat conductive member 11 may face the outer plate surfaces 5 and 6 of the flame shield region 2 in a plane, and heat conduction to the outer plate surfaces 5 and 6 of the flame shield region 2. As long as most of the members 11 (for example, an area of 80% or more) are in contact with each other, a part of the members 11 may be in a non-contact state. The thermal conductivity of the glass plate 1 made of soda glass is generally less than 1 W / mK. On the other hand, the thermal conductivity of the heat conductive member 11 is preferably 50 W / mK or more. As the heat conductive member 11, for example, a metal or alloy such as Sn, Al, Ag, Cu, Zn can be used. The thermal conductivity of Sn is 64 W / mK, the thermal conductivity of Al is 204 W / mK, the thermal conductivity of Ag is 418 W / mK, and the thermal conductivity of Cu is 372 W / mK. The thermal conductivity of Zn is 113 W / mK.

In this way, by arranging the heat conductive members 11 adjacent to the outer plate surfaces 5 and 6 (flame-shielding region 2) of the peripheral edge portion 8, the glass plate 1 moves from the non-flame-shielding region 3 to the flame-shielding region 2. Heat conduction is done quickly. As a result, for example, when a fire breaks out in a compartment facing either one of the glass plates 1, the heat of combustion is transmitted to the non-flame-shielding region 3 of the glass plate 1 exposed in the compartment, and is also non-flame-shielding. It is transmitted from the region 3 to the flame-shielding region 2 of the glass plate 1 via the heat conductive member 11. As a result, the temperature of the flame-shielding region 2 rises and the temperature difference between the non-flame-shielding region 3 and the flame-shielding region 2 becomes small, so that the thermal cracking phenomenon of the glass plate 1 can be prevented from occurring.

The heat conductive member 11 in the present embodiment is provided from the outer plate surfaces 5 and 6 to the end surface 4 of the glass plate 1. The heat conductive member 11 is arranged on at least a part of the end surface 4 of the glass plate 1. That is, the heat conductive member 11 may be arranged on the entire end surface 4 of the glass plate 1, or may be arranged on a part of the end surface 4. In the example of FIG. 2, the heat conductive member 11 is arranged on the entire end surface 4 of the glass plate 1. As a result, the heat of the central portion 7 of the glass plate 1 that is directly exposed to the flame in the event of a fire is efficiently transferred to the end surface 4 of the peripheral edge portion 8 by the heat conductive member 11. As a result, the temperature of the end surface 4 of the glass plate 1 tends to rise, so that the temperature difference between the central portion 7 and the peripheral portion 8 of the glass plate 1 can be further reduced. Therefore, in the glass plate 1, thermal cracking in the peripheral portion 8 of the glass plate 1 far from the central portion 7 and the temperature rise slowly can be reliably prevented.

The heat conductive member 11 is arranged only in the flame-shielding region 2 of the flame-shielding region 2 and the non-flame-shielding region 3 of the glass plate 1. That is, since the heat conductive member 11 does not protrude into the non-flame shield region 3, the heat conductive member 11 is arranged on the glass plate 1 in a state where it cannot be visually recognized from the outside. As a result, it is possible to prevent thermal cracking of the glass plate 1 in a state where the heat conductive member 11 does not affect the appearance of the glass plate 1.

In the present embodiment, the heat conductive member 11 is arranged over the entire area (height from the end surface 4 to the upper end surface of the flame shield member 20) of the flame shield region 2 covered by the flame shield member 20. With this configuration, in the event of a fire, the central portion 7 (non-flame-shielding region 3) to the peripheral portion 8 (shielding) of the glass plate 1 that has become hot due to the heat of combustion of the fire via the heat conductive member 11 Heat is transferred to the flame area 2). As a result, the temperature of the peripheral portion 8 of the glass plate 1 that is not directly exposed to the flame by the flame-shielding member 20 rises rapidly, and the temperature of the central portion 7 and the peripheral portion 8 becomes extremely high due to the heat of combustion of the fire. Since the difference is small, thermal cracking of the glass plate 1 is prevented, and the fire resistance of the glass plate 1 is improved.

As shown in FIG. 4, the heat conductive member 11 is composed of, for example, a tape body having excellent heat conductivity, and includes a metal foil 12 and an adhesive layer 13. The pressure-sensitive adhesive layer 13 has a pressure-sensitive adhesive 14 and heat-conductive fine particles 15. If the heat conductive member 11 is a tape body, it can be easily brought into close contact with the glass plate 1 on the surface, so that improvement in heat conductivity can be expected. Further, as shown in the glass module 10 of FIG. 3, if the glass plate 1 is prepared in a state where the heat conductive member 11 is attached to the outer plate surfaces 5 and 6 and the end surfaces 4 of the peripheral edge portion 8 of the glass plate 1. It is preferable because the heat conductive member 11 can be easily attached and the heat conductive member 11 also protects the end face 4. That is, as shown in FIG. 3, the glass module 10 in which the heat conductive member 11 is fixed to the glass plate 1 is inserted into the frame body 21 in which the setting block 22 and the backup material 23 are housed, and the glass module 10 and the frame body are inserted. Since the glass unit 100 is completed by fitting the elastic support 24 into the gap between the glass unit 21 and the glass unit 24, the glass unit 100 is easy to assemble. The heat conductive member 11 may be provided only on the portion of the glass plate 1 where thermal cracking is likely to occur, but in order to ensure fire resistance, the entire circumference of the glass plate 1 ( It is desirable to provide it over the peripheral edges 8) of the four sides.

In the present embodiment, the heat conductive member 11 is configured so as not to come into contact with the frame 21 of the flame shield member 20. Since the heat conductive member 11 does not come into contact with the frame body 21, the heat conductive member 11 is not required to have dimensional accuracy in the direction perpendicular to the plate surface of the glass plate 1. Therefore, in consideration of the specifications of the glass plate 1 and the thermal conductivity of the heat conductive member 11, the thickness of the heat conductive member 11 and the like can be easily adjusted within the dimensional range below the gap between the glass plate 1 and the frame 21. Can be done.

The heat conductive member 11 preferably has a higher absorption rate of near infrared rays (wavelength 0.7 μm to 2.5 μm) than the glass plate 1, and particularly has a higher absorption rate for near infrared rays having a wavelength of 2.5 μm than the glass plate 1. Is preferable. The maximum value of this absorption rate is preferably 0.1 or more with respect to 1, and more preferably 0.2 or more. When the frame body 21 is heated in the event of a fire, the radiant heat generated from the frame body 21 may be propagated by near infrared rays. However, since the glass plate 1 transmits near infrared rays, it is unlikely that the temperature of the peripheral portion 8 of the glass plate 1 will rise due to the radiant heat from the frame body 21. Therefore, in the present embodiment, the absorption rate of the near infrared rays of the heat conductive member 11 is made larger than the absorption rate of the near infrared rays of the glass plate 1. Further, the thermal conductivity of the frame body 21 in this embodiment is set to 20 W / mK or more. As a result, the peripheral edge 8 of the glass plate 1 can easily receive the radiant heat from the frame 21 by the heat conductive member 11, so that the peripheral edge 8 of the glass plate 1 is heated to raise the temperature of the central portion 7 and the peripheral edge of the glass plate 1. The temperature difference from the part 8 can be reduced more quickly. Further, the emissivity of the heat conductive member 11 is preferably 0.1 or more, and more preferably 0.2 or more with respect to the maximum value of 1. As a result, the heat loss in which the radiant heat of the frame body 21 is reflected by the heat conductive member 11 can be suppressed, so that the radiant heat can be efficiently transferred to the flame shielding region 2 via the heat conductive member 11.

The heat conductive member 11 may be configured to have fine irregularities on the surface of the metal foil 12. If the surface of the metal foil 12 has fine irregularities, the surface reflection of the radiant heat is suppressed in the metal foil 12, so that the metal foil 12 easily absorbs the radiant heat. As a result, the heat conductive member 11 can efficiently receive radiant heat from the flame shield member 20 to heat the peripheral edge portion 8 of the glass plate 1.

The metal foil 12 provided in the heat conductive member 11 has a thermal conductivity of 50 W / mK or more, preferably 100 W / mK or more. When the thermal conductivity of the metal foil 12 is 50 W / mK or more, the thermal conductivity of the heat conductive member 11 can also be increased to 50 W / mK or more. As a result, the heat of the central portion 7 of the glass plate 1 is quickly transferred to the peripheral edge portion 8 of the glass plate 1 via the heat conductive member 11, and the peripheral edge portion 8 can be heated quickly. In order to increase the thermal conductivity of the heat conductive member 11, the thermal conductivity of the metal foil 12 is more preferably 100 W / mk or more.

The metal leaf 12 is made of a metal or alloy such as Sn, Al, Ag, Cu, and Zn, and contains at least one of Sn, Al, Ag, Cu, and Zn in an amount of 50% by weight or more. The thermal conductivity of Sn is 64 W / mK, the thermal conductivity of Al is 204 W / mK, the thermal conductivity of Ag is 418 W / mK, the thermal conductivity of Cu is 372 W / mK, and the thermal conductivity of Zn is 113 W / mK. be. That is, Sn, Al, Ag, Cu, and Zn all have a thermal conductivity of 50 W / mK or more. Therefore, when the metal foil 12 contains at least one of the above-mentioned metals in an amount of 50% by weight or more, the thermal conductivity of the heat conductive member 11 can be easily increased. Of Sn, Al, Ag, Cu, and Zn, Zn is most preferable because it has an anticorrosive effect that does not allow moisture, oxygen, and the like that cause corrosion to permeate.

The pressure-sensitive adhesive 14 is any of an acrylic type, a silicone type, and a natural rubber type. Thereby, the adhesive layer 13 can be easily formed in the heat conductive member 11.

The heat conductive fine particles 15 have a higher thermal conductivity than the pressure-sensitive adhesive 14. As a result, the heat conductive member 11 can increase the heat conductivity of the pressure-sensitive adhesive layer 13 by the heat conductive fine particles 15.

The content of the heat conductive fine particles 15 in the adhesive layer 13 is 50% by weight or more and 90% by weight or less, preferably 60% by weight or more and 80% by weight or less. In this way, the heat conductive member 11 can secure both heat conductivity and adhesiveness in the adhesive layer 13. If the heat conductive fine particles 15 in the pressure-sensitive adhesive layer 13 are less than 50% by weight, the pressure-sensitive adhesive layer 13 cannot obtain sufficient heat conductivity. Further, when the heat conductive fine particles 15 exceed 90% by weight in the pressure-sensitive adhesive layer 13, the ratio of the pressure-sensitive adhesive 14 becomes too low, so that the adhesive strength decreases and the heat-conducting member 11 easily peels off from the glass plate 1.

The thickness of the adhesive layer 13 is 10 μm or more and 100 μm or less, preferably 20 μm or more and 90 μm or less. When the thickness of the adhesive layer 13 is 10 μm or more and 100 μm or less, the heat conductive member 11 can secure both the thermal conductivity and the adhesiveness of the adhesive layer 13. If the thickness of the adhesive layer 13 of the heat conductive member 11 is smaller than 10 μm, peeling may occur due to the difference in thermal expansion between the metal foil 12 and the glass plate 1 in the event of a fire. On the other hand, when the thickness of the pressure-sensitive adhesive layer 13 exceeds 100 μm, the heat conductivity of the heat conductive member 11 including the pressure-sensitive adhesive layer 13 may be lowered due to the influence of the pressure-sensitive adhesive 14. Since the pressure-sensitive adhesive layer 13 contains the pressure-sensitive adhesive 14 having a lower thermal conductivity than the metal foil 12, the thickness of the pressure-sensitive adhesive layer 13 is preferably smaller than the thickness of the metal foil 12. For example, if the thickness of the metal foil 12 is 100 μm, the thickness of the adhesive layer 13 can be set to 30 to 50 μm. In this way, the adhesive layer 13 can be set to a thickness of about half that of the metal foil 12.

The heat conductive fine particles 15 contained in the adhesive layer 13 have an average particle size of 10 μm or more and 100 μm or less, preferably 20 μm or more and 90 μm or less. When the particle size of the heat conductive fine particles 15 is 10 μm or more and 100 μm or less, the heat conductive member 11 can surely secure the heat conductivity in the adhesive layer 13. If the particle size of the heat conductive fine particles 15 is less than 10 μm, the heat conductive fine particles 15 are unevenly arranged in the adhesive layer 13, so that uniform heat conductivity may not be ensured. On the other hand, when the particle size of the heat conductive fine particles 15 exceeds 100 μm, the surface area of the heat conductive fine particles 15 becomes small, so that the heat conductivity of the heat conductive member 11 may decrease. The particle size of the thermally conductive fine particles 15 is preferably equal to or less than the thickness of the adhesive layer 13. As shown in FIG. 4, in the present embodiment, the heat conductive member 11 is configured so that the particle size of the heat conductive fine particles 15 and the thickness of the adhesive layer 13 are the same.

The heat conductive fine particles 15 are metal fine particles. When the heat conductive fine particles 15 are metal fine particles, heat conductivity can be reliably imparted to the adhesive layer 13. The metal fine particles are composed of a metal or alloy such as Sn, Al, Ag, Cu, and Zn, and contain at least one of Sn, Al, Ag, Cu, and Zn in an amount of 50% by weight or more. In this way, the thermal conductivity of the adhesive layer 13 can be easily increased.

Of the Sn, Al, Ag, Cu, and Zn, the metal fine particles preferably have a low melting point of Sn, Zn, and Al. When used for low melting point metal fine particles, even if the adhesive 14 receives the heat of combustion during a fire and its adhesiveness decreases, the adhesion between the glass plate 1 and the adhesive layer 13 is improved by melting the surface of the metal fine particles. Can be secured. Further, the metal fine particles contained in the adhesive layer 13 may be composed of only one kind of metal, or may be a mixture of metal fine particles of different metals.

Since the backup material 23 and the elastic support 24 are members for supporting the glass plate 1 on the frame body 21, they are made of resin or rubber having a certain degree of elasticity so as not to damage the glass plate 1. The backup material 23 and the elastic support 24 are made of highly heat-insulating resin or rubber, and from the central portion 7 of the glass plate 1 which has become hot due to a fire to the backup material 23 and the elastic support 24 via the heat conductive member 11. Heat conduction is suppressed. Since the heat transferred to the peripheral edge 8 of the glass plate 1 via the heat conductive member 11 increases by that amount, the temperature of the peripheral edge 8 can be raised efficiently, and the fire resistance can be improved more reliably. can. Further, in order to suppress heat from escaping from the heat conductive member 11 to the setting block 22 and to efficiently raise the temperature of the peripheral portion 8 of the glass plate 1, the setting block 22 is also a material having high heat insulating properties. desirable.

A glass window provided in a building or the like is realized by sandwiching and fixing a glass module 10 between flame shield members 20.

A fire protection test was conducted to verify the fire protection performance of the glass module 10 of the present embodiment. As Example 1, a glass module having a heat conductive member 11 having metal fine particles in the adhesive layer 13, a glass module having a heat conductive member 11 having no metal fine particles in the adhesive layer 13 as Example 2, and Comparative Example 1. A conventional glass module not provided with the heat conductive member 11 was prepared.

The glass plate 1 is made of a single-layer soda glass having a plate thickness of 5 mm and subjected to a heat strengthening treatment. The frame 21 is made of aluminum, the backup material 23 is a flame-retardant resin, the elastic support 24 is a fireproof silicone sealant, and the setting block 22 is a fireproof block made of calcium silicate. The heat conductive member 11 used in Examples 1 and 2 is a tape body in which the metal foil 12 is a Sn foil and has a thickness of 100 μm and the adhesive layer 13 has a thickness of 40 μm, and is outside the flame-shielding region 2. It is arranged on the plate surfaces 5 and 6. The heat conductive member 11 is arranged at a position up to 7 mm from the edge (edge of the end face 4) toward the center side. The adhesive layer 13 of the heat conductive member 11 of Example 1 contains Sn fine particles having a particle size of 40 μm in a dispersed state.

The fire prevention test assumes that a fire will occur on one side of the glass plate 1, and the temperature inside the furnace T is raised for 10 minutes according to the ISO-834 heating curve below, and after 10 minutes, each of the glass plates 1 The edge temperature (hereinafter referred to as edge temperature) and the center temperature of the glass plate 1 (hereinafter referred to as center temperature) were measured.
ISO-834 heating curve: T = 345log (8t + 1) + 20 t: heating time (minutes)

The temperature difference between the center and the edge of the glass plate 1 usually reaches a maximum value about 10 minutes after the start of the fire protection test, and then the temperature difference becomes small. From this, by confirming the temperature difference between the center and the edge of the glass plate 1 10 minutes after the start of the fire protection test, the fire protection performance of the glass plates 1 of Example 1, Example 2, and Comparative Example was compared. can do.

When the fire protection test was conducted under the above conditions, 10 minutes after the fire protection test, the edge temperature was 255 ° C. in Example 1, the edge temperature was 232 ° C. in Example 2, and the edge temperature was 210 ° C. in Comparative Example 1. rice field. The central temperature of the glass plate 1 was 530 ° C. in all of Example 1, Example 2, and Comparative Example 1. Based on these results, the temperature difference between the center and the edge of the glass plate 1 was 275 ° C in Example 1, 298 ° C in Example 2, and 320 ° C in Comparative Example 1.

In the first and second embodiments, when a fire breaks out on one side surface of the glass plate 1, heat is generated from the center to the edge of the glass plate 1 which has become hot due to the fire through the heat conductive member 11. It is transmitted. As a result, the temperature of the edge of the glass plate 1 rises, and the temperature difference between the center and the edge, which becomes extremely high due to the heat of combustion of the fire, becomes smaller than that of Comparative Example 1.

On the other hand, in Comparative Example 1, since the glass plate 1 is not provided with the heat conductive member 11, the edge of the glass plate 1 cannot be positively heated. Therefore, in the glass plate 1, the temperature difference between the center, which becomes extremely high due to the heat of combustion of the fire, and the edge, which is not easily affected by the heat of combustion of the fire, is larger than that of the first and second embodiments.

From the results of the above fire protection test, it was shown that Example 1 and Example 2 were superior in fire protection performance to Comparative Example 1. When the test results are verified, the reason why Example 1 and Example 2 are excellent in fire protection is that the heat conductive member 11 is provided on the outer plate surfaces 5 and 6 of the flame shielding region 2 from the edge of the glass plate 1. It is considered that this is due to the characteristic composition.

Further, when the surface compressive stress required for the glass plate 1 was verified in Example 1, Example 2, and Comparative Example 1, the minimum was 120 MPa in the case of Comparative Example 1, while the minimum was 120 MPa in the case of Example 1. It was 101 MPa, and in the case of Example 2, it was at least 111 MPa. From the above results, it was clarified that the glass plate 1 having a relatively low surface compressive stress can be used for the fireproof glass module 10 by providing the heat conductive members 11 on the outer plate surfaces 5 and 6 of the glass plate 1. ..

[Second Embodiment]
A second embodiment of the glass unit 100 will be described with reference to FIG. The same members as those in the first embodiment are assigned the same numbers, and the description thereof will be omitted here.

The heat conductive member 11 may be configured to be dispositionable on at least one of the first outer plate surface 5 and the second outer plate surface 6 in the non-flame shield region 3. In the present embodiment, the heat conductive member 11 is arranged adjacent to both the outer plate surfaces 5 and 6 of the non-flame shield region 3 adjacent to the flame shield region 2 in addition to the flame shield region 2 of the glass plate 1. ing. Although not shown, the heat conductive member 11 may be arranged only on one of the first outer plate surface 5 and the second outer plate surface 6 in the non-flame shield region 3. With this configuration, the heat of combustion received by the non-flame-shielding region 3 of the glass plate 1 due to the presence of the heat-conducting member 11 fixed to the non-flame-shielding region 3 passes through the heat-conducting member 11 to the flame-shielding region 2. It becomes easy to be transmitted to. As a result, the temperature difference between the non-flame-shielding region 3 and the flame-shielding region 2 of the glass plate 1 can be quickly reduced. Further, since the heat conductive member 11 is provided on the outer panel surfaces 5 and 6 adjacent to the flame shield region 2 in the non-flame shield region 3, the range of the heat conductive member 11 in the non-flame shield region 3 is reduced. Therefore, it is possible to minimize the influence of the heat conductive member 11 on the appearance of the glass plate 1.

[Third Embodiment]
A third embodiment of the glass unit 100 will be described with reference to FIG. The same members as those in the first embodiment are assigned the same numbers, and the description thereof will be omitted here.

In this embodiment, the heat conductive member 11 is provided only on the outer plate surfaces 5 and 6 (flame shield region 2) of the glass plate 1, and is not provided on the end surface 4. Even with such a configuration, the heat conductive member 11 is used to transfer the heat of the central portion 7 of the glass plate 1 which has become extremely high due to the heat of combustion of the fire by the heat conductive member 11 arranged in the flame shield region 2. It can be transmitted to the peripheral edge portion 8 including the end face 4 via. As a result, the temperature difference between the central portion 7 and the peripheral portion 8 of the glass plate 1 can be reduced, and the fire resistance can be improved.

[Fourth Embodiment]
A fourth embodiment of the glass unit 100 will be described with reference to FIG. The same members as those in the first embodiment are assigned the same numbers, and the description thereof will be omitted here.

In this embodiment, the heat conductive member 11 is provided from the outer plate surfaces 5 and 6 of the glass plate 1 to the frame body 21. As described above, the heat conductive member 11 may be configured so as to be in contact with the frame body 21, which is at least a part of the flame shield member 20. The heat conductive member 11 has a first contact portion 16 and a second contact portion 17. The first contact portion 16 is a portion that comes into surface contact with the outer plate surfaces 5 and 6 of the glass plate 1. The second contact portion 17 is a portion that comes into surface contact with the inner side surface 25 of the frame body 21 in a state of being sandwiched between the frame body 21 and the backup material 23. Further, since the thermal conductivity of the frame body 21 is 20 W / mK or more, it is sufficiently larger than the thermal conductivity of the glass plate 1 (about 1 W / mK), and the glass from the frame body 21 is passed through the second contact portion 17. Heat is easily transferred to the peripheral edge 8 of the plate 1. With this configuration, two heat transfer paths to the peripheral edge portion 8 of the glass plate 1 can be secured from the central portion 7 of the glass plate 1 and from the frame body 21, so that the heat transfer path to the peripheral edge portion 8 of the glass plate 1 can be secured. The heating of the glass can be promoted more.

[Fifth Embodiment]
A fifth embodiment of the glass unit 100 will be described with reference to FIG. The same members as those in the first embodiment are assigned the same numbers, and the description thereof will be omitted here.

In the present embodiment, the second heat conductive member 30 is interposed between the flame shielding region 2 of the glass plate 1 and the frame body 21. The second heat conductive member 30 is arranged between the frame 21 and the heat conductive member 11 fixed to the flame shield region 2. The second heat conductive member 30 is made of a metal having a thermal conductivity of 20 W / mK or more and 250 W / mK or less. If the second heat conductive member 30 is a metal, a material having a higher thermal conductivity than the glass plate 1 can be easily selected. The second heat conductive member 30 has a first contact portion 31 and a second contact portion 32. The first contact portion 31 is a portion that comes into surface contact with the heat conductive member 11 fixed to the peripheral edge portion 8 of the glass plate 1. The second contact portion 32 is a portion that is bent toward the bottom of the frame body 21 with respect to the backup material 23 and is in surface contact with the inner side surface 25 of the frame body 21. With this configuration, the glass plate from the frame 21 that has become hot due to the fire is passed through the second heat conductive member 30 that has a thermal conductivity sufficiently higher than the thermal conductivity of the glass plate 1 (about 1 W / mK). It is possible to easily transfer heat to the peripheral portion 8 of 1. Further, since the thermal conductivity of the frame 21 is 20 W / mK or more, it is sufficiently larger than the thermal conductivity of the glass plate 1 (about 1 W / mK), and the second heat from the frame 21 which has become hot due to the fire. Heat is easily transferred to the peripheral edge 8 of the glass plate 1 via the conductive member 30. As a result, the temperature of the peripheral portion 8 of the glass plate 1 becomes easy to rise, so that the temperature difference between the central portion 7 and the peripheral portion 8 of the glass plate 1 can be quickly reduced. As a result, thermal cracking of the glass plate 1 can be prevented, so that the fire resistance of the glass plate 1 can be improved.

[Other embodiments]
(1) In the above embodiment, in the glass module 10, the heat conductive member 11 is arranged over the entire circumference of the peripheral edge portion 8 of the glass plate 1, but the heat conductive member 11 is the glass plate 1. They may be arranged at intervals in the circumferential direction of the peripheral edge portion 8. The heat conductive member 11 may be arranged only on the upper side portion and the lower side portion of the four sides of the glass plate 1, for example. The heat conductive member 11 may be arranged on the four sides of the peripheral edge portion 8 of the glass plate 1, or may be formed without arranging the heat conductive member 11 at the corners where the two sides intersect. Further, in the above embodiment, an example is shown in which the heat conductive member 11 is arranged in the entire flame shielding region 2 corresponding to the height direction of the frame body 21, but the heat conductive member 11 is, for example, a shield adjacent to the end surface 4. It may be arranged only in a part of the flame region 2.

(2) The flame-shielding region 2 in the above embodiment may be provided so as to cross the central portion of the glass plate 1 in addition to the peripheral edge portion 8 of the glass plate 1, and may be provided in the shape of the frame 21 of the glass plate 1. It is set appropriately according to it. Further, the flame-shielding region 2 may be composed of at least a part of the outer plate surfaces 5 and 6 of the glass plate 1 covered with the flame-shielding member 20. That is, the frame body 21 may have a shape that does not cover the end surface 4 of the glass plate 1.

(3) In the above embodiment, an example is shown in which the frame body 21 of the flame shield member 20 is a fixed frame of the sash, but the frame body 21 is not limited to the fixed frame of the sash, and a pair of L-shaped angles and the like. , Other configurations may be used.

(4) In the above embodiment, the flame-shielding member 20 includes the backup material 23 and the elastic support 24. However, as shown in FIG. 9, the flame-shielding member 20 is composed of only the frame body 21. You may.

(5) In the above embodiment, an example in which the glass plate 1 is made of single-layer glass is shown, but as shown in FIG. 10, the glass plate 1 may be made of double-glazed glass. In the example of FIG. 10, the glass plate 1 is composed of the first glass plate 41 and the second glass plate 42, and the spacer 43 arranged between the first glass plate 41 and the second glass plate 42. The first glass plate 41 is tempered glass, and the second glass plate 42 is Low-E glass. A low reflection film 44a is coated on the surface 44 of the second glass plate 42 on the side facing the first glass plate 41. The heat conductive member 11 is fixed in contact with at least the outer plate surface 45 and the end surface 47 of the first glass plate 41 and the outer plate surface 46 and the end surface 48 of the second glass plate 42. The heat conductive member 11 may be further contacted and fixed to the inside of the first glass plate 41 and the inside of the second glass plate 42.

In any of the embodiments, the configuration of the heat conductive member 11 or the second heat conductive member 30 is not limited to that shown in FIGS. 1 to 10. That is, if the heat conductive member 11 is present on the outer plate surface (5, 6, 45, 46) of the glass plate 1 when the glass unit 100 is completed, another configuration can be adopted.

The present invention can be applied to a glass module and a glass unit including a glass plate. Further, it can be applied not only to single glazing but also to double glazing.

1: Glass plate 2: Flame-insulating area 3: Non-flame-insulating area 4: End faces 5, 6: Outer plate surface 7: Central part 8: Peripheral part 10: Glass module 11: Heat conductive member 12: Metal foil 13: Adhesive layer 14: Adhesive 15: Thermally conductive fine particles 20: Flame shield member 21: Frame body 22: Setting block 23: Backup material 24: Sealing material (elastic support)
30: Second heat conductive member 41: First glass plate 42: Second glass plate 100: Glass unit

Claims (21)

A glass module that faces the flame-shielding member on a surface and can be assembled to the flame-shielding member.
A glass plate having a first outer plate surface and a second outer plate surface provided on the back side of the first outer plate surface, and
A heat conductive member arranged adjacent to the first outer plate surface and the second outer plate surface is provided.
The glass plate has a flame-insulating region that can be covered by the flame-shielding member on the plate surface.
A glass module in which the heat conductive member has a higher thermal conductivity than the glass plate and can be arranged in at least a part of the flame shield region. The glass module according to claim 1, wherein the flame-shielding region is provided on a plate surface of a peripheral portion of the glass plate and is 10 mm or more and 30 mm or less from the end surface of the glass plate. The glass module according to claim 2, wherein the heat conductive member is arranged on at least a part of an end face of the glass plate. The glass module according to claim 1 or 2, wherein the heat conductive member is arranged only in the flame shielding region. The glass plate further comprises a non-flame shield region adjacent to the flame shield region and not covered by the flame shield member.
The invention according to any one of claims 1 to 4, wherein the heat conductive member is configured to be dispositionable on at least one of the first outer plate surface and the second outer plate surface in the non-flame-shielding region. Glass module. The glass module according to any one of claims 1 to 5, wherein at least a part of the heat conductive member is configured to be in contact with the flame shield member. The glass module according to any one of claims 1 to 5, wherein the heat conductive member is configured so as not to come into contact with the flame shield member. The glass module according to any one of claims 1 to 7, wherein the heat conductive member has a higher absorption rate of near infrared rays than the glass plate. The glass module according to claim 8, wherein the heat conductive member has an emissivity of 0.1 or more. The heat conductive member includes a metal foil and an adhesive layer, and has an adhesive layer.
The glass module according to any one of claims 1 to 9, wherein the adhesive layer has an adhesive and thermally conductive fine particles. The glass module according to claim 10, wherein the metal foil has a thermal conductivity of 50 W / mK or more. The glass module according to claim 10 or 11, wherein the heat conductive fine particles have a higher thermal conductivity than the pressure-sensitive adhesive. The glass module according to any one of claims 10 to 12, wherein the adhesive layer has a content of the heat conductive fine particles of 50% by weight or more and 90% by weight or less. The glass module according to any one of claims 10 to 13, wherein the adhesive layer has a thickness of 10 μm or more and 100 μm or less. The glass module according to any one of claims 10 to 14, wherein the heat conductive fine particles have a particle size of 10 μm or more and 100 μm or less. The glass module according to any one of claims 10 to 15, wherein the heat conductive fine particles are metal fine particles. The glass module according to any one of claims 1 to 16.
A glass unit including a flame-shielding member that sandwiches a peripheral edge of the glass plate. The glass unit according to claim 17, wherein the flame-shielding member is configured to sandwich the glass plate between surfaces. The glass unit according to claim 18, wherein the flame-shielding member is a fixed frame for a sash. The glass unit according to claim 19, wherein the fixed frame has a thermal conductivity of 20 W / mK or more and 250 W / mK or less. A glass window in which the glass module according to any one of claims 1 to 16 is sandwiched and fixed to the flame shield member.

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