JP2662755B2 - Solar shading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar shading device provided inside a window glass of a general building.

[0002]

2. Description of the Related Art In general, a solar shading device such as a blind, a screen, a curtain, or the like is provided on the indoor side of a window glass surface of a building for the purpose of preventing glare caused by solar radiation and reducing the penetration of solar radiation into the room. It is attached.

Further, in order to remove the heat absorbed by the solar shading device and the warmed air between the window glass and the solar shading device, the window glass is doubled and a blind or the like is incorporated therein to form a double glass. An air-passing type solar shading device has been developed in which air is flowed in between to prevent a heat load from entering a room.

[0004]

In the solar shading device that allows air to flow through the double glass, heat insulation is improved by doubling the glass, and the heat radiation to the outside is suppressed during the daytime in summer but good during the daytime. As a result, the air conditioning load increases.

In addition, a mechanism for opening the inner glass is required for cleaning the inside of the double glass, which complicates the structure, increases the cost of members, and makes cleaning difficult.

SUMMARY OF THE INVENTION An object of the present invention is to provide a solar shading device which solves the above-mentioned disadvantages of the prior art, does not hinder heat radiation at night in summer, has a simple structure, is inexpensive, and is easy to clean and maintain. is there.

[0007]

In order to achieve the above object, the present invention has an opaque roll screen woven of opaque fibers for shielding sunlight and a low-emission film inside the window glass. Transparent roll screens are arranged side by side with a ventilation interval between them, and these roll screens can be individually raised and lowered, or, in addition to this configuration, an exhaust fan is provided above the roll screen. The gist of the invention is that the exhaust port of the air-conditioning duct is provided.

[0008]

According to the first aspect of the present invention, both the opaque roll screen and the transparent roll screen for shielding solar radiation are lowered during the time when summer sunshine enters, and the window glass and the opaque roll screen are lowered. By circulating air between the roll screens and / or between the opaque roll screen and the transparent roll screen, it is possible to shield the solar radiation and reduce the penetration of the solar radiation into the room. In addition, both the opaque roll screen and the transparent roll screen are wound up during a time period when heat radiation is required, such as at night in summer, so that the heat remaining in the room is easily radiated to the outside.

In winter, the opaque roll screen is wound up and only the transparent roll screen is lowered. Then, by flowing indoor air between the window glass and the transparent roll screen, it is possible to reduce the cold radiation from the glass surface and prevent the downward flow of cool air along the glass surface while maintaining the view to the outside. .

The cleaning of the inner surface of the glass can be easily performed by winding both the opaque roll screen and the transparent roll screen.

The transparent roll screen has a low radiation film adhered to the inside of the room, so that long-wavelength components radiated from the surface into the room can be suppressed, and unpleasant radiant heat can be further reduced. In addition, since the opaque roll screen is woven with opaque fibers, the long-wavelength component radiated from the surface into the room can be completely suppressed.

According to the second aspect of the present invention, in addition to the above-mentioned operation, since the exhaust port of the air conditioning duct having the exhaust fan is located above the roll screen, the exhaust fan can be operated particularly during the daytime in summer. During operation, room air flows between the window glass and the opaque roll screen and / or between the opaque roll screen and the transparent roll screen, and this heat is absorbed by the opaque roll screen and the window glass. Is removed at the same time, and is finally discharged to the outside through the air conditioning duct, so that adverse effects on the indoor side due to solar radiation can be prevented.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a vertical sectional side view showing one embodiment of the solar shading device of the present invention.

In FIG. 1, reference numeral 1 denotes a window glass of a window, in which an opaque roll screen 2 made of opaque fiber for shielding sunlight and a transparent roll screen in which a low-emission film is adhered. 3 and side by side. The opaque roll screen 2 and the transparent roll screen 3 can be independently lifted and lowered by independent winding devices 4 and 5, respectively. The air-conditioning duct 6 is housed in, for example, a concave portion 7 formed at an opening end of a ceiling opening.

In the figure, 8 is an exhaust fan provided in the air conditioning duct 6, 9 is an air conditioner provided below the window, and 10 and 11 are drive control devices of the winding devices 4 and 5 by switches and the like.

The opaque roll screen 2 and the transparent roll screen 3 are arranged side by side with a ventilation interval 12 therebetween.

Next, usage and operation will be described.
During the period when sunlight enters the room through the window in summer, the opaque roll screen 2 for shielding sunlight is unreeled from the winding device 4 by operating the control device 10 as shown in FIG. By operating the device 11, the transparent roll screen 3 is unwound from the winding device 5 and lowered.

By operating the exhaust fan 8 in this way, the gap between the window glass 1 and the opaque roll screen 2
And / or room air flows between the opaque roll screen 2 and the transparent roll screen 3, which removes the heat absorbed by the opaque roll screen 2 and the window glass 1 together, and passes through the air conditioning duct 6. And finally released to the outside. Further, the low radiation film stuck on the indoor side of the transparent roll screen 3 suppresses radiant heat to the indoor side. Thus, the opaque roll screen 2 blocks the sunlight and blocks the sunlight, and at the same time, reduces the penetration of the solar radiation into the room.

As shown in FIG. 2, in the summer night, an opaque roll screen 2 and a transparent roll screen 3 are provided.
Are wound up, and the exhaust fan 8 stops. As a result, heat radiation from the surface of the window glass 1 to the outside of the room is promoted, and the air conditioning load at the start of the next day is reduced.

When it is not necessary to block the solar radiation in winter, only the transparent roll screen 3 is lowered, the opaque roll screen 2 is wound up, and the exhaust fan 8 is operated. As a result, the heated air in the room can be circulated between the transparent roll screen 3 and the window glass 1, the surface temperature of the transparent roll screen 3 is increased, and the glass surface is maintained while maintaining a view to the outside. This can reduce cold radiation from the air and prevent a downward flow of cold air along the glass surface.

For cleaning the window, use an opaque roll screen 2.
By winding both the transparent roll screen 3 and the transparent roll screen 3, the inner surface of the window glass 1 can be easily cleaned in the same manner as a normal glass window.

[0022]

As described above, the solar shading apparatus of the present invention removes heat in summer to lower the indoor surface temperature, suppresses indoor radiant heat, and reduces occupants' hot flashes. ,
In winter, it can raise the indoor surface temperature, reduce cold radiation, and improve the thermal environment near the windows throughout the year.

Further, as compared with the conventional apparatus, the apparatus has a simple structure, is inexpensive, and is easy to clean and maintain.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing one embodiment of a solar shading device of the present invention.

FIG. 2 is a longitudinal side view of a solar shading device according to an embodiment of the present invention in a summer nighttime state.

FIG. 3 is a vertical sectional side view of a solar shading apparatus according to an embodiment of the present invention in a winter state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Window glass 2 ... Opaque roll screen 3 ... Transparent roll screen 4, 5 ... Winding device 6 ... Air-conditioning duct 7 ... Depression 8 ... Exhaust fan 9 ... Air conditioner 10, 11 ... Control device 12 ... Ventilation interval

Claims (2)

(57) [Claims] 1. An opaque roll screen made of opaque fibers for shielding sunlight and a transparent roll screen having a low-emissivity film adhered to the inside of a windowpane. The solar screen is characterized in that the roll screens are individually movable up and down. 2. The solar shading apparatus according to claim 1, wherein an exhaust port of an air conditioning duct having an exhaust fan faces the upper portion of the roll screen.