JP2019019587A - Triple-glazed glass with built-in dimmer - Google Patents

Abstract

To provide a triple-glazed glass with a built-in dimmer which can prevent an indoor space from being affected by outdoor temperature, can also adjust the brightness of the indoor space, and can realize maintenance free operation.SOLUTION: A triple-glazed glass 1 with a built-in dimmer includes an outdoor glass plate 2 disposed on an outdoor side, a glass plate unit 5 disposed on an indoor side, a hollow layer 6 formed as a hermetically sealed space between the outdoor glass plate 2 and the glass plate unit 5, and a dimmer 7 disposed in the hollow layer 6 for adjusting a light transmission area of the outdoor glass plate 2 and the glass plate unit 5, the glass plate unit 5 being made up of an indoor glass plate 4 disposed on the indoor side and an intermediate glass plate 3 disposed on the outdoor side of the indoor glass plate 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a dimmer built-in triple glass used as a window of a building such as a building.

  There is known one in which a blind, which is a kind of dimmer, is incorporated between two glasses (see, for example, Patent Document 1). The blind opening and closing device described in Patent Document 1 incorporates a blind between two glasses, and moves the blind up and down with a magnet or changes the left and right angles. With this structure, we are trying to reduce the influence of heat on the room temperature due to the outside air temperature. However, this structure still does not have sufficient thermal performance as a countermeasure for such outside air temperature.

  On the other hand, a double skin facade is known (see, for example, Patent Document 2). This structure also reduces the effect of reducing the air conditioning load with respect to the outside air temperature. However, in the double skin facade, since there are many methods of taking outside air from the outside, dust accumulates in the internal space, and it is necessary to clean the blinds and glass disposed in the internal space. Blind slats are easy to break, so the slats may break during this maintenance. In addition, maintenance costs for maintenance are also required.

  In addition, since maintenance is required, a certain amount of volume is required as the internal space, which must be dealt with by narrowing the indoor space. The so-called lendable ratio is reduced. And since it is necessary to form an internal space widely, a different sash is required by the outside window and the inside window, and the cost for it is also complicated and construction is complicated. In particular, indoor windows must be rotating or sliding door windows for maintenance, and a sash equipped with a mechanism for that must be prepared, making the structure complicated and expensive. End up.

Japanese Patent No. 4268131 JP 2001-253734 A

  The present invention takes the above-described conventional technology into consideration, and prevents the influence of the outside air temperature from being applied to the room, can adjust the brightness of the room, and realizes maintenance-free triple. The object is to provide glass.

  In order to achieve the above object, in the present invention, an outdoor glass plate arranged on the outdoor side, and two glass plates arranged in the indoor and outdoor direction with a space from the outdoor glass plate are arranged in the outdoor direction. A glass plate unit formed by: a hollow layer that is a sealed space formed between the outdoor glass plate and the glass plate unit; and the outdoor glass plate disposed in the hollow layer and the A dimmer for adjusting the light transmission area of the glass plate unit, and the two glass plates forming the glass plate unit are an indoor glass plate arranged on the indoor side, and the indoor glass plate Provided is a triple glass with a built-in dimmer characterized by comprising an intermediate glass plate arranged on the outdoor side.

  Preferably, a sealing layer that is a sealed space is disposed between the indoor glass plate and the intermediate glass plate.

  Preferably, the sealing layer is filled with an inert gas.

  Preferably, the sealing layer is evacuated.

  Preferably, an adhesive layer including an adhesive for adhering each other is disposed between the indoor glass plate and the intermediate glass plate.

  Preferably, the distance from the outer surface of the outdoor glass plate to the inner surface of the indoor glass plate is 95 mm or less.

  According to the present invention, the amount of sunlight can be adjusted with a dimmer such as a blind or a roll screen, and among the glass plates located between the glass plates, the indoor side is a glass plate unit composed of two glass plates. Since it is formed, the entire structure is formed of three glass plates. For this reason, the influence of the outside air temperature can be further prevented from being applied to the room, and the brightness of the room can be adjusted. Therefore, for example, when the outside air temperature is high, the dimmer can be closed to reduce the indoor cooling load. On the other hand, when the outside air temperature is low, the dimmer can be opened to reduce the indoor heating load. In addition, by adjusting the dimmer to adjust the transmission area of light such as sunlight, the indoor brightness can be adjusted and the visibility can be improved, and the workability in indoor work is improved.

  Since the dimmer is arranged in a hollow layer which is a sealed space, it is not soiled and can be maintenance-free. By eliminating the need for maintenance, problems such as breakage of the dimmer during cleaning will not occur. Moreover, since a large space is not required for maintenance or ventilation like the double skin facade, the thickness can be reduced correspondingly, and the renderable ratio is improved. Specifically, in the case of a double skin facade, the total depth is about 800 mm, but in the present invention, it can be set to 95 mm or less, preferably 65 mm or less. Due to such a reduction in thickness, all glass plates can be integrated with a single sash, construction is simplified, and costs are reduced.

  Moreover, by providing a sealing layer between the indoor glass plate and the intermediate glass plate, the heat transmissibility and the solar heat gain rate can be reduced, and the thermal performance is improved. By making this sealing layer into a vacuum, thermal performance is further improved. Even if the sealing layer is filled with an inert gas (argon, xenon, krypton, etc.), a certain effect of improving thermal performance is expected. Instead of the sealing layer, a certain degree of improvement in thermal performance can be expected as an adhesive layer containing an adhesive.

It is a schematic sectional drawing of the triple glass with a built-in light controller which concerns on this invention. It is a schematic perspective view of the example of FIG. It is a schematic perspective view of another triple glass with a built-in dimmer according to the present invention. It is a schematic perspective view of another triple glass with a built-in dimmer according to the present invention. It is an experimental data of a comparative example and an Example.

  As shown in FIGS. 1 and 2, the dimmer built-in triple glass 1 according to the present invention includes three glass plates (outdoor glass plate 2, intermediate glass plate 3, and indoor glass plate 4). The outdoor glass plate 2 is a glass plate arranged on the outermost side of the room. An intermediate glass plate 3 is arranged on the indoor side, and an indoor glass plate 4 is arranged on the indoor side. Since the intermediate glass plate 3 and the indoor glass plate 4 are basically paired glass that is often handled as a single unit, the glass plate unit 5 is formed of these. Accordingly, the glass plate unit 5 is formed by arranging two glass plates (intermediate glass plate 3 and indoor glass plate 4) side by side in the indoor / outdoor direction, and is arranged on the indoor side with a space from the outdoor glass plate 2. Will be.

  A hollow layer 6 is formed between the outdoor glass plate 2 and the indoor glass plate unit 5 as a sealed space. The hollow layer 6 is filled with air, but may be filled with an arbitrary gas (for example, an inert gas such as argon, xenon, or krypton). The hollow layer 6 is provided with a dimmer 7. The dimmer 7 is for adjusting the light transmission area of the outdoor glass plate 3 and the glass plate unit 5, and specifically, is a blind, a roll screen, a pleat or the like. In the figure, an example in which a blind is used as the dimmer 7 is shown. The upper side of the hollow layer 6 is covered with an upper frame 10 made of metal, wood or resin, and the lower side is covered with a lower frame 11 made of metal, wood or resin. The upper frame 10 is hollow, and an elevator 12 for raising and lowering the blind is disposed inside. The elevator 12 is driven by a motor 13 disposed in the upper frame 10, and the motor 13 is electrically connected to an external power source (not shown) via a cord 14. The mechanism for raising and lowering the blind is not limited to the combination of the elevator 12 and the motor 13. For example, the motor 13 may not be built in the upper frame 10, and a motor of the type attached to the outside of the sash 8 may be used. Or you may provide the string for winding up a blind manually without using the motor 13 outside. On the other hand, in order to operate the motor 13, you may enable it to operate with a tablet terminal or a touch panel using a radio | wireless.

  When such a dimmer built-in triple glass 1 is actually attached to a building, at least the upper and lower sides are fixed by a sash 8 as shown in FIG. A sash 8 may be provided on the left and right, or a plurality of triple glasses 1 with built-in dimmers may be arranged. The sash 8 is attached to the building housing 9.

  With such a structure, it is possible to adjust the amount of sunlight irradiated by the dimmer 7 such as a blind or a roll screen. In addition, since the glass plate unit 5 is formed of two glass plates (intermediate glass plate 3 and indoor glass plate 4), the dimmer built-in triple glass 1 has three glasses as a whole. Formed of plates. For this reason, the influence of the outside air temperature can be further prevented from being applied to the room, and the brightness of the room can be adjusted. Therefore, for example, when the outside air temperature is high, the dimmer 7 can be closed to reduce the indoor cooling load. On the other hand, when the outside air temperature is low, the dimmer 7 can be opened and sunlight can be taken in to reduce the indoor heating load. Further, by adjusting the dimmer 7 to adjust the transmission area of light such as sunlight, the indoor brightness can be adjusted and the visibility can be improved, and the workability in indoor work is improved. In the case of the blind, if the blind is raised (opened), a large amount of light can be transmitted, and if the blind is lowered (closed), the light can be blocked. Further, in the case of a blind, the light transmission area can be adjusted by adjusting the angle of slats extending in the horizontal direction and arranged in the vertical direction.

  Furthermore, since the dimmer 7 is disposed in the hollow layer 6 that is a sealed space, the dimmer 7 is not contaminated and can be maintenance-free. By eliminating the need for maintenance, problems such as the dimmer 7 being damaged during cleaning do not occur. Moreover, since a large space is not required for maintenance or ventilation like the double skin facade, the thickness can be reduced correspondingly, and the renderable ratio is improved. Specifically, in the case of a double skin facade, the overall depth is about 800 mm, but the dimmer built-in triple glass 1 can be set to 95 mm or less. By such a reduction in thickness, all the glass plates 2, 3, and 4 can be integrated with one sash, and the construction is simplified and the cost is reduced. These effects are exhibited because the glass plate unit 5 including the two glass plates 3 and 4 is disposed on the indoor side. The overall thickness can be suppressed by the thermal performance of the glass plate unit 5. In addition, the triple glass 1 with a built-in dimmer can be made 65 mm or less in consideration of the glass size, the wind pressure at the installation location, and the like. More preferably, the thickness is 65 mm or less. That is, the dimmer built-in triple glass 1 of the present invention has a total thickness of 95 mm or less, preferably 65 mm or less.

  In addition, about each glass plate 2, 3, and 4, you may give Low-E coating (Low-E film | membrane) to both surfaces or one side of several glass plates. This Low-E has a characteristic of reflecting solar heat. In order to exhibit its performance specifically, it is sufficient to provide it on the indoor side of the outdoor glass plate 2 and the indoor side of the intermediate glass plate 3. The glass plate on which the Low-E film is formed is also referred to as a Low-E glass plate.

  Here, the specific example of the suitable glass plate unit 5 is demonstrated below. Between the indoor glass plate 4 and the intermediate glass plate 3 forming the glass plate unit 5, a sealed layer 15 that is a sealed space may be disposed. By providing such a sealing layer 15, it is possible to reduce the heat flow rate and the solar heat gain rate, and to improve the thermal performance. In the example of FIG. 2, the sealing layer 15 is filled with air or inert gas. It has been found that if the sealing layer 15 is filled with an inert gas such as argon, xenon, krypton, the performance is improved over air.

  Alternatively, as shown in FIG. 3, the sealing layer 15 may be evacuated. It has been found that evacuation in this way improves thermal performance. When the sealing layer 15 is evacuated in this way to form a so-called vacuum layer, a plurality of spacers (not shown) are bridged between the intermediate glass plate 3 and the indoor glass plate 4. As a result, a vacuumed vacuum layer can be held, deformation of the glass plate can be prevented, and further improvement in strength can be expected.

  Alternatively, as shown in FIG. 4, an adhesive layer 16 containing an adhesive for adhering each other may be disposed between the indoor glass plate 4 and the intermediate glass plate 3. Instead of the sealing layer 15, the adhesive layer 16 containing an adhesive can be expected to improve thermal performance to some extent. As the adhesive layer 16, a PVB (polyvinyl butyral) film, an EVA (ethylene vinyl acetate) film, an IO (ionomer) film, or the like can be used. There are some types that cut ultraviolet rays or infrared rays, but both are available.

As shown in FIG. 5, several glasses were prepared, and the values were measured for the heat transmissibility, the solar heat gain rate, and the visible light transmittance. The heat transmissibility is a value relating to heat insulation, and the lower the heat insulation, the better the heat insulation. The solar heat acquisition rate is a value related to heat intake, and the lower the heat is, the less heat enters. The higher the value of the visible light transmittance, the brighter. As Comparative Example 1, the above values were calculated for a normal transparent single plate glass (float glass). In the table, “FL” indicates float glass, and the subsequent numerical values indicate thickness (mm). That is, “FL15” means “15 mm float glass” (the same applies hereinafter). In Comparative Example 1, the heat flow rate was 5.6 (W / m ² · K), the solar heat acquisition rate was 0.76, and the visible light transmittance was 84.4 (%).

In Comparative Example 2, a transparent multilayer glass was used. Specifically, it was formed by sandwiching a 12 mm hollow layer (air layer) with 10 mm float glass. In Comparative Example 2, the heat transmissivity was 2.8 (W / m ² · K), the solar heat acquisition rate was 0.69, and the visible light transmittance was 75.7 (%). Further, in Comparative Example 3, the float glass of Comparative Example 2 was 10 mm Low-E glass. In addition, the Low-E film | membrane is distribute | arranged to the room inner side of the glass plate (hereinafter the same). In Comparative Example 3, the heat transmissivity was 1.9 (W / m ² · K), the solar heat acquisition rate was 0.59, and the visible light transmittance was 65.3 (%).

Next, an experiment was conducted on the triple glass 1 with a built-in dimmer according to the present invention. First, as Example 1, the outdoor glass plate 2 filled with argon gas as 8 mm Low-E glass, the hollow layer 6 29 mm, the intermediate glass plate 3 8 mm Low-E glass, and the 12 mm sealing layer 15, The indoor glass plate 4 was 8 mm float glass. The argon gas ratio in the sealing layer 15 is 85%. In Example 1, when the blind is fully opened, the heat transmissivity is 0.68 (W / m ² · K), the solar heat gain is 0.21, and the visible light transmittance is 52.1 (%). Met. When the blinds were fully closed, the heat flow rate was 0.61 (W / m ² · K), and the solar heat gain rate was 0.05. Regarding the visible light transmittance, no value was obtained because light was blocked (hereinafter, the same applies to the case where the blind is fully closed).

As Example 2, instead of the 12 mm argon layer (sealing layer 15) of Example 1, an air layer that is the sealing layer 15 filled with air was used. In Example 2, when the blind is fully opened, the heat transmissibility is 0.78 (W / m ² · K), the solar heat gain is 0.22, and the visible light transmittance is 52.1 (%). Met. When the blinds were fully closed, the heat flow rate was 0.68 (W / m ² · K), and the solar heat gain rate was 0.05. From this, it can be seen that Examples 1 and 2 are superior to Comparative Examples 1 to 3 both in terms of heat transmissibility and solar heat gain. Moreover, in Examples 1 and 2, it can be seen that Example 1 is superior.

Next, as Example 3, the sealing layer 15 was evacuated to form a 0.2 mm vacuum layer. Here, the intermediate glass plate 3 was made of 5 mm Low-E glass, and the indoor glass plate 4 was made of 5 mm float glass. Others are the same as in the first embodiment. In Example 3, when the blinds were fully opened, the heat transmissivity was 0.67 (W / m ² · K), the solar heat gain was 0.21, and the visible light transmittance was 53.4 (%). Met. When the blinds were fully closed, the heat flow rate was 0.57 (W / m ² · K), and the solar heat gain rate was 0.04. Most of these values are better than Example 1. That is, it can be judged that it is preferable to use the sealing layer 15 made of a vacuum layer as the glass plate unit 5.

As Example 4, an adhesive layer provided in place of the argon layer of Example 1 was used. At this time, PVB of 1.524 mm was used for the adhesive layer. In Example 4, when the blind is fully opened, the heat transmissivity is 1.35 (W / m ² · K), the solar heat gain is 0.22, and the visible light transmittance is 51.5 (%). Met. When the blinds were fully closed, the heat flow rate was 1.00 (W / m ² · K), and the solar heat gain rate was 0.07.

1: triple glass with built-in dimmer, 2: outdoor glass plate, 3: intermediate glass plate, 4: indoor glass plate, 5: glass plate unit, 6: hollow layer, 7: dimmer, 8: sash, 9: Building frame, 10: upper frame, 11: lower frame, 12: elevator, 13: motor, 14: cord, 15: sealing layer, 16: adhesive layer

Claims (6)

An outdoor glass plate arranged outside the room,
A glass plate unit which is arranged on the indoor side with a space from the outdoor glass plate, and two glass plates are formed side by side in the indoor and outdoor directions;
A hollow layer that is a sealed space formed between the outdoor glass plate and the glass plate unit;
A dimmer arranged in the hollow layer for adjusting the light transmission area of the outdoor glass plate and the glass plate unit;
The two glass plates forming the glass plate unit are composed of an indoor glass plate arranged on the indoor side and an intermediate glass plate arranged on the outdoor side of the indoor glass plate. Triple glass with built-in light.   The dimmer built-in triple glass according to claim 1, wherein an airtight layer which is an airtight space is disposed between the indoor glass plate and the intermediate glass plate.   The dimmer built-in triple glass according to claim 2, wherein the sealing layer is filled with an inert gas.   The triple glass with built-in dimmer according to claim 2, wherein the sealing layer is evacuated.   The dimmer built-in triple glass according to claim 1, wherein an adhesive layer including an adhesive for adhering each other is disposed between the indoor glass plate and the intermediate glass plate.   The dimmer built-in triple glass according to claim 1, wherein a distance from an outer surface of the outdoor glass plate to an inner surface of the indoor glass plate is 95 mm or less.

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