JPH0643789B2 - Energy saving-glass - Google Patents

Description

TECHNICAL FIELD The present invention relates to an energy-saving glass that is attached to a window of a building and controls the amount of solar radiation that penetrates into the room.

“Conventional Technology” In recent years, from the viewpoint of energy saving, it has become more and more important to reduce the heating and cooling load of buildings, and various measures have been taken for this purpose.

Among them, as a means of reducing the cooling load in the summer, in order to reduce the amount of heat acquired by the solar radiation from the window surface that occupies a large proportion of the cooling load, glass with a small heat ray transmittance such as heat ray reflective glass is used on the window surface. It is widely used. The heat ray reflective glass is a thin glass or metal oxide film formed on the entire surface of ordinary glass, which can reduce the amount of transmitted solar radiation by about 20% to 30% compared to ordinary glass, thus reducing the cooling load. It can be reduced.

"Problems to be solved by the invention" However, when the above-mentioned heat-reflecting glass or the like is used for the window surface, naturally, the amount of solar radiation that penetrates into the room is reduced not only in the summer but also in the winter. Therefore, the amount of solar radiation that contributes to the reduction of the heating load in winter will also be reduced.

Therefore, when a glass with a small heat ray transmittance such as a heat ray reflective glass is used for the window surface, the cooling load in summer can be reduced compared to the case of ordinary glass, but the heating load in winter is reversed. There was a problem that the energy consumption would increase, and the effect of energy saving throughout the year was not sufficient.

In order to solve the above problems, the present applicant previously provided an energy saving window [Japanese Patent Application No. 59-179877]. In this, the ordinary glass surface is inclined so that the upper part thereof protrudes to the outside of the building, and a heat ray reflecting glass surface is provided between the upper edge of the ordinary glass surface and the outer wall. According to this energy-saving window, the heat-reflecting glass surface blocks solar radiation in the summer when the solar altitude is high, and the solar radiation is sufficiently transmitted from the ordinary glass surface in the winter when the solar altitude is low, thus achieving an energy-saving effect throughout the year. Is.

However, this energy-saving window has a problem in that it cannot be used due to the external appearance of the building because the glass surface is provided so as to project from the outer wall, and the installation is complicated and time-consuming.

This invention has been made in view of the above circumstances, and it is possible to obtain an energy saving effect throughout the year,
An object of the present invention is to provide an energy-saving glass that can be attached like conventional glass without protruding from the outer wall surface.

"Means for Solving Problems" The present invention relates to a glass to be attached to a window of a building, and the first invention is to form a parallelogram-shaped solid rod-shaped body with an ordinary glass material, At least one of the upper surface and the lower surface facing each other is subjected to heat ray reflection treatment.

A second aspect of the present invention is a plurality of glasses formed by a normal glass material into a solid parallelepiped body having a parallelogram cross section, and at least one of the upper and lower surfaces facing each other is subjected to heat ray reflection treatment. The members are horizontally attached to a surface of a flat glass made of a normal glass material at a predetermined interval and in a state in which the upper surface and the lower surface are inclined so that the outdoor side is lower than the indoor side. A third aspect of the present invention is that the above glass member has a predetermined gap in a gap between two flat glass members made of ordinary glass material and facing each other with a gap, and the upper surface and the lower surface are lower outside the room than inside the room. It is mounted in a horizontal direction in a tilted position. Furthermore, a fourth aspect of the present invention makes the upper surface and the lower surface of the glass member intimately contact with each other in a state where the upper surface and the lower surface are inclined so that the outdoor side is located lower than the indoor side, and joins them to the vertical plane. It is built up and down along the way.

"Working" The energy-saving glass of the present invention is used by being attached to a window of a building, and is subjected to heat ray reflection treatment in summer when the solar altitude is high, and at least one of the inclined upper and lower surfaces is used. Therefore, most of the solar radiation is blocked, reducing the amount of solar radiation that penetrates into the room. Further, in the winter when the altitude of the sun is low, a sufficient amount of solar radiation is taken into the room through the glass member.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

First, the energy-saving glass A will be described with reference to FIGS. 1 to 3. This energy saving glass A is
As shown in FIG. 1 and FIG. 2, the ordinary glass material is formed into a parallelogram-shaped solid rod shape, and the upper surface and the lower surface thereof are subjected to heat ray reflection treatment, respectively. , 2 are formed. These heat ray reflective surfaces 1 and 2
Is formed by means generally used in the conventional production of heat ray-reflecting glass (that is, a thin film of metal or metal oxide is formed on the glass surface). The cross-sectional shape of the energy-saving glass A is set so that the solar radiation can be shielded most efficiently in summer as described later, and as shown in FIG.
The angle formed by the front surface 3 and the heat ray reflecting surface 1 on the upper surface (shown by a in the figure) is 105 °, not 115 °, so that when the front surface 3 is vertical, the angle formed by the heat ray reflecting surface 1 and the horizontal plane (see FIG. (Indicated by middle b) is set to 15 ° to 25 °, and the direction of the diagonal line (shown by the chain double-dashed line in the figure) of the cross section of this energy-saving glass A becomes substantially the same as the direction of solar radiation S in summer, which will be described later. This diagonal and heat ray reflective surface 1
The angle (denoted by c in the figure) formed by is made to be a right angle (90 °).

The energy-saving glass A having the above configuration is used by being attached to a window of a building in such a manner that its axis line is substantially horizontal and the front surface 3 is the outdoor side and is along a vertical plane. The energy-saving glass A can control the amount of solar radiation that penetrates into the room depending on the season. That is, in summer, the altitude of the sun is large (for example, in Tokyo, it is about 65 ° to 75 ° southeast), and the solar radiation is as shown by S in FIG. 3, and this solar radiation S is almost perpendicular to the heat ray reflecting surfaces 1 and 2. The amount of solar radiation entering the room can be most efficiently reduced because the contact is made and the heat ray reflecting surfaces 1 and 2 shield each other without a gap. In winter, the solar altitude is low (for example, in Tokyo, it is 30 ° to 45 ° southeast), and the solar radiation is as shown by W in FIG. 3. This solar radiation W is partly reflected by the heat ray reflecting surfaces 1 and 2. Is blocked, but most of it can penetrate into the room.

Therefore, the energy-saving glass A can reduce the amount of solar radiation that penetrates into the room in the summer to reduce the cooling load, and can also introduce sufficient solar radiation into the room in the winter to reduce the heating load.

Next, the energy-saving glass B will be described with reference to FIG.

The energy-saving glass B is formed by adhering a plurality of glass members 6 to the indoor side surface of a flat glass 5 made of a normal glass material which is vertically attached to the window frames 4 and 4 of a building. . The glass member 6 ... Is constructed in the same manner as the energy-saving glass A described above (that is, is formed by a normal glass material into a rod shape having a parallelogram cross section). Reflective surfaces 7 and 8 are formed. This glass member 6 ...
As shown in FIG. 4, the front surface 9 of the flat glass 5 is adhered to the indoor surface of the flat glass 5 using a transparent adhesive so that the axial direction of the glass members 6 is horizontal. At this time,
The heat ray reflecting surfaces 7 and 8 are inclined so that the outdoor side is positioned lower than the indoor side. Further, the mutual distance between the glass members 6 ... Is made equal to the height dimension of the glass members 6.

Based on the above configuration, the energy-saving glass B, like the energy-saving glass A described above, can control the amount of solar radiation that penetrates into the room depending on the season. That is,
After passing through the flat glass 5, the solar radiation S in the summer hits the heat ray reflecting surfaces 7 and 8 substantially vertically, and the heat ray reflecting surfaces 7 and 8
Since it is blocked by 8 without any gap, the amount of solar radiation that penetrates into the room can be reduced most efficiently. Although the solar radiation W in winter is partially blocked by the heat ray reflecting surfaces 7 and 8, most of it can pass through the flat glass 5 and the glass member 6 and enter the room.

Next, the energy-saving glass C will be described with reference to FIG. In the energy-saving glass C, the same components as those in the energy-saving glass B described above are denoted by the same reference numerals, and detailed description thereof will be omitted.

The energy-saving glass C has a structure in which the glass members 6 are attached to the gap between the two flat glasses 10 facing each other with a gap. The two flat glasses 10, 10 are fixed to a sash (not shown) at the peripheral edge and are similar to the laminated glass generally used in the past. These two flat glasses 10,10
The glass members 6 ... Are adhered to the inner surface of the plate in the horizontal direction at predetermined intervals. The interval at which the glass members 6 are attached is equal to the height dimension of the glass members 6 as in the case of the energy-saving glass B described above, and the heat ray reflecting surfaces 7 and 8 of the glass members 6 ... It is designed to be inclined with respect to the horizontal plane so that the outside is positioned low.

Based on the above-mentioned structure, this energy-saving glass C can control the amount of solar radiation that penetrates into the room depending on the season as well as the energy-saving glasses A and B described above, and it is a double-layered glass, so it is thermally insulated. It also has excellent sound insulation properties.

Next, the energy-saving glass D will be described with reference to FIG. The energy-saving glass D has a structure in which the upper surface and the lower surface of the glass members 6 are joined to each other to be stacked vertically along a vertical surface,
Both ends of the joined glass members 6 are fixed by a sash (not shown). Glass members 11 having a trapezoidal cross section are attached to the uppermost and lowermost portions of the glass members 6 ...

In the energy-saving glass D having the above-mentioned configuration, just like the energy-saving glasses A, B, and C described above, it is possible to reduce the amount of solar radiation that penetrates into the room in the summer and sufficiently secure it in the winter. it can.

In addition, the glass member 6 of this energy-saving glass D ...
The heat ray reflecting surface may be formed on either the upper surface or the lower surface.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. For example, the cross-sectional shape of the glass member may be set according to the sun altitude in the area where the energy-saving glass is used, or according to the sun altitude at the time and direction where the energy-saving effect is most desired.

Further, in the energy saving glass B, the glass member is attached to the flat glass, but the glass may be molded in such a shape from the beginning. In the energy-saving glass B, it is desirable that the edge portion of the glass member protruding toward the indoor side be slightly chamfered to be rounded.

Further, in the above-described energy-saving glass D, the plurality of glass members do not necessarily have the same size, and glass members having different cross-sectional sizes may be combined in consideration of strength at the time of joining the glass members.

〔The invention's effect〕

As described above in detail, according to the present invention, at least one of the upper surface and the lower surface of the glass member whose cross section is formed into a parallelogram is subjected to the heat ray reflection treatment, and the upper surface and the lower surface are inclined and used. By doing so, the amount of solar radiation that penetrates into the room can be reduced in the summer to reduce the cooling load, and in the winter, a sufficient amount of solar radiation can be taken into the room to reduce the heating load as well, saving energy throughout the year. It has the effect that can be achieved. Further, according to the present invention, the glass surface does not protrude from the outer wall, and it can be handled in the same manner as conventional general glass, and has an effect of easy attachment.

[Brief description of drawings]

1 to 6 are views showing an embodiment of the present invention. 1 to 3 are diagrams showing a schematic structure of the energy-saving glass A, wherein FIG. 1 is an overall perspective view, FIG. 2 is a side sectional view, and FIG. FIG. FIG. 4 is a side view in which a part of the energy-saving glass B is attached to a window of a building and is omitted. FIG. 5 is a side view showing a state in which the energy-saving glass C is attached to a window of a building with a part omitted. FIG. 6 is a side view in which a part of the energy-saving glass D is attached to a window of a building and is omitted. A, B, C, D ... Energy saving glass, 1 ... Heat ray reflecting surface (upper surface), 2 ... Heat ray reflecting surface (lower surface), 5 ... Flat glass, 6 ... Glass member, 7 ... Heat ray reflecting surface (Upper surface), 8 ... Heat ray reflective surface (lower surface), 10 ... Flat glass.

Claims (4)

[Claims] 1. A glass to be attached to a window of a building, which is formed into a solid rod-shaped body whose cross section is a parallelogram made of a normal glass material, and which reflects heat rays on at least one of an upper surface and a lower surface facing each other. Energy-saving glass that has been treated. 2. A glass to be attached to a window of a building, which is formed into a solid rod-like body whose cross section is a parallelogram made of a normal glass material, and whose upper and lower surfaces facing each other are subjected to heat ray reflection treatment. The plurality of glass members formed by the above are inclined at a predetermined interval on the surface of a flat glass made of a normal glass material, and the upper and lower surfaces subjected to the heat ray reflection treatment are inclined so that the outdoor side is located lower than the indoor side. Energy-saving glass, which is installed horizontally in the open state. 3. A glass to be attached to a window of a building, which is formed into a solid rod-shaped body having a parallelogram shape in its cross section by a normal glass material, and has its upper surface and lower surface facing each other subjected to heat ray reflection treatment. The plurality of glass members formed by the above are placed in a space between two flat glass faces made of ordinary glass material facing each other with a space at a predetermined interval and the upper surface and the lower surface subjected to the heat ray reflection treatment are indoors. An energy-saving glass, characterized in that it is attached in a horizontal direction by being intimately attached to the inner surface of the flat glass in a state of being inclined so that the outdoor side is positioned lower. 4. A glass to be attached to a window of a building, which is formed into a solid rod-shaped body having a parallelogram shape in cross section by a normal glass material and has heat ray reflection on at least one of the opposite upper and lower surfaces thereof. Multiple glass members that have been treated are stacked vertically by joining the upper and lower surfaces together with the upper and lower surfaces tilted so that the outdoor side is lower than the indoor side. Energy-saving glass characterized by