KR102371008B1 - A complex window system for better energy efficiency - Google Patents

Abstract

The present invention relates to a high-efficiency composite window system with improved energy efficiency, specifically, a composite window that reflects external sunlight into a building so that it can be used as lighting, and that the amount of light flowing into the interior can be adjusted according to the amount of external sunlight It's about the system.
A window system installed on a wall separating the outside of a building and the inside of a building, comprising: a reflective window unit for reflecting external sunlight into the inside of the building; It relates to a high-efficiency composite window system with improved energy efficiency, including a contrast control window unit that adjusts the amount of light flowing into a building according to the amount of external sunlight.

Description

High-efficiency composite window system with improved energy efficiency {A COMPLEX WINDOW SYSTEM FOR BETTER ENERGY EFFICIENCY}

The present invention relates to a composite window system with improved energy efficiency, and more specifically, a composite window that reflects external sunlight into the inside of a building to be used as lighting, and adjusts the amount of light flowing into the interior according to the amount of external sunlight It's about the system.

In general, window systems play a role in protecting the residential environment inside a building from external hot or cold air, rain and wind. This window system has been developed from a paper window system in the past to a glass window system.

However, since these window systems do not have a way to control the amount of sunlight flowing into the building other than opening or closing them, and the amount of sunlight varies greatly depending on the season, the inside of the building becomes hotter in summer and winter There is a problem that the inside of the building becomes colder. In accordance with these problems, technologies for improving the difference in sunlight have been continuously developed.

As a kind of such technology, there is a window system in which a photochromic material is formed, but these windows and doors are composed of a single layer, so there is a disadvantage in that sunlight cannot be properly controlled.

Accordingly, the inventor of the present invention developed a composite window system with improved energy efficiency through appropriate control of sunlight in order to reduce the lighting load and heating/cooling load inside the building.

0001. Korean Patent Publication No. 10-2018-0085439 (published on July 27, 2018)

It is an object of the present invention to provide a composite window system capable of simultaneously controlling the direction and amount of sunlight flowing into a building.

It is an object of the present invention to provide a composite window system that can control the direction of sunlight flowing into a building and use it as lighting inside a building, and also control the amount of light to save heating and cooling energy.

The present invention for solving the above technical problems,

In the window system installed on the wall separating the outside of the building and the inside of the building,

a reflective window unit that reflects external sunlight into the inside of the building;

It is a complex window system with improved energy efficiency, including a contrast control window unit that adjusts the amount of light flowing into the building according to the amount of sunlight outside.

Preferably, the reflective window portion of the present invention

It is a composite window system with improved energy efficiency, which is disposed on the upper part of the contrast control part, and the sunlight reflected by the reflective window part is reflected in a downward direction in the building through a reflective sheet provided on the ceiling.

In addition, the reflective window part of the present invention is composed of a double layer, and a plurality of reflective mirrors are disposed between the double layers in an inclined state. It is a composite window system with improved energy efficiency.

On the other hand, the contrast control window portion of the present invention is provided with a triple glass layer spaced apart from each other, argon gas or dry air is provided in the first spaced apart space, PVB film, PET, TCO coating layer between the second spaced space, It is a composite window system with improved energy efficiency, characterized in that the SPD coating layer, the TCO coating layer, PET, and PVB films are sequentially stacked.

In addition, the material of the reflective mirror of the reflective window part of the present invention is a composite window system with improved energy efficiency, characterized in that it includes at least one of aluminum, silver, and a cold mirror.

The present invention is a composite window system capable of simultaneously controlling the reflection angle and amount of sunlight flowing into a building.

The reflective window unit of the present invention can be used as lighting inside the building by controlling the reflection angle of sunlight flowing into the building, and the contrast control window unit can control the amount of light flowing into the building to save heating and cooling energy.

1 is a perspective view of a composite window system according to the present invention.
Figure 2 shows a plan view and a cross-sectional view of a composite window system according to the present invention.
3 is a cross-sectional view showing a reflective window according to the present invention.
4 is a cross-sectional view showing the contrast control window according to the present invention.

Hereinafter, in addition to the above objects, other objects and features of the present invention will become apparent through the description of the embodiments with reference to the accompanying drawings.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, the present invention will be described with reference to the drawings.

1 is a perspective view of a composite window system according to the present invention, largely a reflective window unit 100 for reflecting external sunlight into a building, and a contrast control window unit for controlling the amount of light flowing into the building according to the amount of external sunlight. It consists of (200).

The composite window system is provided with a reflective window unit at the upper portion, and a contrast control window unit is continuously provided under the reflective window unit. Preferably, ventilation holes are provided at the upper end and lower end of the composite window system, respectively. It is possible to ventilate the indoor and outdoor air according to the indoor air temperature and pollution level. In particular, the ventilation of the air can be switched according to the weather and the concentration of fine dust.

The reflective window unit 100 is made of a double-glazed window, and a reflective sheet is provided in the space between the double-glazed windows. The lower contrast control window unit 200 darkens the light and shade in summer (A) so that less hot sunlight from outside flows in to prevent the indoor temperature from rising, and in winter (B), outside sunlight flows into the room. This allows the room temperature to be supplemented.

Preferably, the reflective sheet of the semi-arc window has an arc structure concave in the upper direction and convex in the lower direction.

2 is a plan view and a cross-sectional view of the inside of a building to which the composite window system and the composite window system according to the present invention are attached, as shown in FIG. Sunlight is reflected to the ceiling of the building through the provided reflective sheet, and the sunlight irradiated to the ceiling is reflected in the lower direction of the room to replace the lighting. It is possible to save electric energy for indoor lighting by such a reflective window unit.

In the case of a general window system, the sunlight irradiated to the reflective windows provided on the upper part of the outer wall of the building is directed toward the indoor floor and cannot serve as lighting, but only serves to cover the indoor air near the windows. However, since sunlight is irradiated to the ceiling by such a reflective window and replaces lighting, electrical energy for lighting is saved.

3 is a cross-sectional view of a reflective window according to the present invention. As shown in FIG. 3, the reflective window is a double layer, and a plurality of reflective mirrors are disposed between the double layers in an inclined state. It is possible to configure the reflective window portion again in two upper and lower stages. That is, it is possible to configure the upper part of the reflective window part as a direct reflective window part by the first reflective sheet, and the lower part as the line-of-sight blocking part by the second reflective sheet. That is, the first reflective sheet 110 is preferably arranged so that the reflective sheet is concave in the upper direction and convex in the lower direction to direct external direct sunlight toward the ceiling inside the building, and the second reflective sheet 120 is a reflective window The lower part, which is close to people's line of sight, is not reflected as direct sunlight by the reflective sheet arranged to be convex and inclined upward, but does not enter the lower part, but the sunlight is diffused and introduced by the reflective sheet.

The material of the reflective window part may be selected from one or more types of aluminum, silver, a cold mirror, etc., and the angle of the reflective mirror is preferably formed at 15 to 45° outside the window. The SHGC (Solar Heat Acquisition Coefficient) of the reflective window is 0.15 or less.

4 is a cross-sectional view of the interior of the contrast control window provided under the reflective window unit, and the contrast control window unit provided under the reflective window unit is provided with a triple glass layer spaced apart from each other as shown, and triple glass Each of the layers consists of an outer layer, an intermediate layer, and an inner layer, and a metal oxide is coated thinly on the inside of the outer side to reflect indoor thermal energy to the inside, and a metal oxide coating layer 212 to reflect outdoor solar radiation is formed. And, argon gas or dry air is provided as a first separation space between the outer layer and the intermediate layer. Between the intermediate layer and the inner layer, that is, in the second spaced apart space, the first PVB film layer 215, the first PET layer 216, the first TCO coating layer 217, the SPD coating layer 218, the second TCO coating layer, the second PET layer, The second PVB film layers are sequentially stacked.

The argon gas in the first spaced space has a lower thermal conductivity than air, so it suppresses the heat exchange phenomenon occurring in the temperature difference of both edges of the triple glass layer, and slows the convection activity of the space between the triple glass layers, so that dew condensation and cooling It suppresses the radiation phenomenon and enhances the insulation effect.

In addition, looking at each film layer provided in the second spaced space, the PVB film serves to adhere and bond the glass to each other, the PET plays a heat insulation role, and the TCO coating layer serves to increase electrical conductivity.

<Example 1>

According to the experimental data through the present invention, data from July to September corresponding to summer are planned to be used, and the cooling load and lighting load were confirmed through simulation.

In particular, it shows the sum of the lighting load and the cooling load by controlling the shielding rate of the variable transmittance glass (SPD) through simulation. The results were confirmed in Table 1 as follows.

Shading 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 0.9 483 697 895 1300 1673 1831 1864 1819 1717 1567 0.8 481 693 893 1288 1645 1856 1884 1832 1703 1587 0.7 480 691 891 1274 1672 1882 1910 1858 1716 1550 0.6 478 688 889 1266 1699 1907 1935 1883 1730 1558 0.5 477 683 887 1272 1712 1932 1960 1908 1743 1567 0.4 475 678 885 1284 1733 1958 1986 1934 1756 1575 0.3 473 673 884 1293 1760 1983 2011 1959 1770 1583 0.2 472 678 889 1301 1788 2008 2036 1984 1783 1592 0.1 473 683 891 1312 1808 2034 2062 2010 1796 1600

As a result of regression analysis of the results shown in the table through the above data, the following function could be confirmed. This graph normalized the total energy consumption of the lighting load and the cooling load for SPD control according to time, and it can be confirmed that the graph shown in FIG. . And based on the results of regression analysis, we would like to propose the following SPD control function.

Here, the value for x is controlled as a value for time. Accordingly, it controls as a function of time and shielding rate, and controls the high-tech envelope that requires SPD control according to time.

As described above, in the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but these are only provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains. Accordingly, the spirit of the present invention should not be limited to the described embodiments, and not only the claims to be described later, but also all those with equivalent or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

100: reflective window part
110: first reflective sheet
120: second reflective sheet
200: Contrast control window part
210: triple glass layer outer layer
212: metal oxide coating layer
213: argon gas or dry air layer
214: triple glass layer intermediate layer
215: PVB film layer,
216: PET layer
217: TCO coating layer
218: SPD coating layer
219: TCO coating layer
220: PET layer
221: PVB film layer
222: triple glass layer inner layer

Claims (6)

It relates to a window system installed on the wall that separates the outside of the building and the inside of the building,
a reflective window unit 100 that reflects external sunlight into the inside of the building;
In the composite window system including;

For SPD control according to time, the SPD control function S(t) obtained as a result of regression analysis by normalizing the total energy consumption of lighting load and cooling load is as follows.

According to claim 1,
The reflective window
The high-efficiency composite window system with improved energy efficiency, characterized in that it is disposed on the upper part of the contrast control part, and the sunlight reflected by the reflective window part is reflected downward in the building through the reflective sheet provided on the ceiling.
3. The method of claim 2,
The reflective window
It is composed of a double layer, and a high-efficiency composite window system with improved energy efficiency, characterized in that a plurality of reflective mirrors are disposed in an inclined state between the double layer.
4. The method according to any one of claims 1 to 3,
The contrast control window unit is provided with a triple glass layer spaced apart from each other, a metal oxide coating layer is laminated on the inside of the triple glass layer outer layer, argon gas or dry air is provided in the first separation space, and a second separation space A high-efficiency composite window system with improved energy efficiency, characterized in that PVB film, PET, TCO coating layer, SPD coating layer, TCO coating layer, PET, and PVB film are sequentially stacked between them.
4. The method according to any one of claims 1 to 3,
The material of the reflective mirror of the reflective window part is
A high-efficiency composite window system with improved energy efficiency, characterized in that it contains at least one of aluminum, silver, and a cold mirror. delete

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