JPH033750Y2 - - Google Patents

Description

[Detailed explanation of the idea]

(Field of application of the invention) This invention collects and stores solar energy,
This invention relates to a bay window that provides passive indoor heating by radiating heat into the room at night. (Prior art) There have been devices that utilize the walls and roof surfaces of ordinary houses and place heat storage bodies thereon for nighttime heating, but the structure for placing them is complicated. Therefore, it is difficult to say that it is suitable for practical use. Therefore, if a so-called unit bay window is used and a heat storage body is placed on this wall in advance, the space of the bay window is used, and the installation structure is relatively simple, and factory production is possible, making it practical. However, indoor heating is required in the winter, and in the summer it is necessary to prevent solar thermal energy from being absorbed by the heat storage body as much as possible. (Problem to be solved by the invention) Therefore, the purpose of the invention is to make the heat storage body absorb the most solar thermal energy in the winter, and reduce the absorption rate in the summer. The aim is to maximize the absorption rate during the daytime. (Means for Solving the Problems) In order to solve the above problems, the present invention is provided so as to extend outside the room, and a window glass 2 is installed on the projecting surface.
In the bay window main body 1, a cavity 4 that opens toward the indoor side is integrally provided below the base plate 3, which is the floor of the bay window main body, and extends toward the outdoor side.
The window glass 5 to be attached to the protruding surface of the cavity is installed with a step provided on the indoor side relative to the window glass 2 of the bay window main body,
A configuration is adopted in which heat storage bodies 6 and 7 utilizing latent heat are provided on the indoor side corresponding to each window glass 2 and 5. (Function) Figure 2 mainly shows the usage condition in the winter season. In the winter season, the incident angle of sunlight into the room is low, so the bay window main body 1, especially the protruding peripheral edge of the base plate 3
a or the eaves 8a of the roof 8,
As shown by arrows, sunlight passes through each window glass 2, 5 and is projected onto the corresponding latent heat storage body 6, 7, where heat is efficiently stored. Figure 3 mainly shows usage conditions in the summer.During the summer, the angle of incidence of sunlight into the room is high, so the sunlight is blocked by the periphery 3a of the base plate 3 of the bay window body 1 and the eaves 8a of the roof 8. As shown by arrows and two-dot chain lines, the proportion of light rays projected into the room from each of the window glasses 2 and 5 is small, and the absorption rate of the heat storage bodies 6 and 7 is reduced accordingly. (Embodiment) Fig. 1 shows the external appearance of a heat storage bay window which is an embodiment of the present invention.The bay window main body 1 generally consists of a roof part 8, a window frame part 9, and a base plate 3. A daylighting window glass 10 at the center of the front and heat storage window glasses 2, 2 at both sides of the front are fitted. Further, below the bay window main body 1, a cavity 4 that opens indoors using the base plate 3 as a partition wall is provided integrally with the bay window main body 1, extending outward to the outdoor side. The window glass 5 to be installed is recessed into the indoor side with a required step l from the installation position of the bay window main body side window glass 2. These window glasses 2 and 5 can be replaced with a transparent material such as acrylic resin, and the window glasses have excellent low reflectivity and high transmittance, especially against sunlight. It is preferable to use selective transmission glass (for example, low-iron white plate glass (Fe ₂ O ₃ 0.01% glass)). Heat storage bodies 6 and 7 utilizing latent heat are arranged on the indoor side corresponding to the heat storage window glasses 2 and 2 on the bay window main body side and the cavity window glass 5. For example, as shown in FIG. 4, the latent heat storage bodies 6 and 7 are made by sealing a mirabilite-based latent heat storage material 6a having the characteristics shown in Table 1 below in a flat container 6b made of reinforced plastic. A heat collecting material 11 made of aluminum foil with a selective absorption film is adhered to the surface of the heat collecting material 11, and the heat collecting material 11 made of aluminum foil with a selective absorption film is adhered to the surface of the heat collecting material 11, and the heat collecting material 11 is attached to the required position using the mounting fittings 12.

[Table] The bay window main body window glass 2 and the cavity window glass 5 are provided with opening/closing window glass parts 2a, 2b, 5a, and 5b whose upper and lower parts can be opened and closed by hinges 13. Furthermore, a hinge 1 is provided at the tip of the bottom plate 14 of the cavity 4.
5, a heat insulating plate 16 is attached which is rotatable from a vertical position to a horizontal position, and as shown in FIG. As shown in the figure, in the horizontal position, the window glass 5 corresponds at right angles and the cavity 4 is opened. A reflective surface 17 made of stainless steel with a mirror finish is formed on the surface of the heat insulating plate 16. As shown in FIG. 2, during the daytime in winter, the heat insulating plate 16 attached to the cavity 4 is opened horizontally and used. As a result, sunlight with a low angle of incidence is transmitted through the window glasses 2 and 5 without being obstructed by the eaves 8a of the roof 8 or the peripheral edge 3a of the base plate 3, as shown by the arrow, and the sun enters the lower part of the bay window. The light beam is reflected by the reflective surface 17 of the heat insulating plate 16 as shown by the arrow, and similarly passes through the cavity window glass 5.
The heat is projected onto the latent heat utilizing heat storage bodies 6 and 7, respectively, and the heat is stored therein. At night, as shown in Figure 3, the insulation board 1
6 is preferably closed, thereby preventing the thermal energy stored in the heat storage body 7 from radiating outside, and the heat rays are directed toward the reflective surface 1 as shown by the arrows.
7, the heat is further stored in the heat storage body 7, or is radiated indoors. As shown in FIG. 3, in the summer, the heat insulating plate 16 is naturally closed, and as a result, sunlight with a high angle of incidence is transmitted to the periphery 3a of the base plate 3 of the bay window main body 1, the eaves 8a of the roof 8, The upper and lower window glass portions 2a of the window glasses 2 and 5 are used to release some of the stored thermal energy to the outside, although the amount of heat stored in the room is reduced because it is blocked by the heat insulating plate 16 and the amount of heat entering the room is small. , 2b, 5a, and 5b are preferably opened at night, and in order to prevent light from entering the room during the day, a light-shielding blind 18 is provided on the outside of the room as shown in FIG. 2, and a light-shielding screen 19 is provided on the inside of the room, as shown in FIG. It may be provided. Fig. 5 shows the daily variation a of the indoor temperature in a general house and the variation b of the indoor temperature in the embodiment of the present invention. However, in this invention, for example, 26.8℃~10.4℃
In addition, the temperature at night is 2.5°C to 3°C higher in the present invention, and the time at which the maximum room temperature appears is also delayed by, for example, about 2 hours. It can be seen that the heat is well absorbed by the heat storage body and the heat is effectively radiated at night. (Effects) According to the present invention, by focusing on the change in the angle of incidence of sunlight in winter and summer, it is possible to increase the amount of incident indoors in the winter, that is, the amount of heat storage, and reduce the amount of heat storage in the summer. Bay windows can be manufactured. According to the embodiment of the present invention, it is possible to collect and effectively store the heat of sunlight incident below the bay window without reducing the occupied area of the window glass.

[Brief explanation of drawings]

FIG. 1 is an external front view showing an embodiment of the present invention;
Fig. 2 is a sectional view taken along the line A-A in Fig. 1, Fig. 3 is a sectional view taken along the line B-B, Fig. 4 is a longitudinal sectional view of the same main part,
FIG. 5 is a graph showing changes in room temperature between an embodiment of the present invention and an ordinary house. 1... Bay window main body, 2... Bay window main body window glass, 3
... Base plate, 4 ... Cavity section, 5 ... Cavity window glass, 6, 7 ... Heat storage body using latent heat, 16 ... Heat insulation plate, 17 ... Reflection surface.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a bay window main body that is provided to extend outward from the room and has a window glass attached to the projecting surface, a cavity that opens toward the indoor side below the base plate that is the floor of the bay window main body. At the same time, the window glass to be attached to the overhanging surface of the cavity is installed with a step on the indoor side relative to the window glass of the main body of the bay window, and a heat storage body using latent heat is installed on the indoor side corresponding to each window glass. A heat storage bay window characterized by being equipped with. 2. A utility model registration claim comprising a heat insulating plate pivotably attached to the outdoor side of the cavity window glass so that it can be opened and closed from a closed state in a vertical position along the window glass to an open state in a horizontal position corresponding to the window glass. A heat storage bay window as described in Scope 1. 3. The heat storage bay window according to claim 2, wherein a reflective surface is formed on the surface of the heat insulating board that corresponds to the window glass.