JP2008249173A - Solar heat collection wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively utilize solar heat with a simple structure at low costs by focusing on that utilization of solar heat in winter is disturbed by improvement of heat shielding performance of glass of a window opening portion. <P>SOLUTION: A spandrel 2 is fixed to an exterior wall of a wall skeleton 1 of a building, a spatial portion S is formed between the exterior wall and the spandrel 2, a temperature of the outside air taken into the spatial portion S from a lower portion of the spandrel 2 is increased by the spandrel 2 heated by solar heat, and the air in the spatial portion S is introduced indoors from an air passage 3 formed in the wall skeleton 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a solar heat collecting wall structure that introduces indoor air that is warmed by efficiently using solar heat.

  Recently, from the viewpoint of environmental protection and effective use of natural energy, generating electricity from sunlight, collecting solar heat directly and using it for heating, or using it to boil bath water Devices that can do this are now on the market.

Among them, a heat collection unit comprising an aluminum heat collection panel having a large number of small holes on the front side of a metal base material, and this heat collection unit is arranged along the outer wall of the building, There is known a heat collection system having a configuration in which an opening is formed in the upper part of the base material and the upper opening is connected to a ventilation fan through a through hole penetrating the outer wall (see Patent Document 1). In this system, outside air is introduced into the heat collecting unit through the small holes of the heat collecting panel, the air is brought into contact with the heat collecting panel heated by solar heat, and the ventilation fan is operated to operate the upper part. The air is sucked into the room from the through hole. As a result, warmed air is taken into the room in the winter, which is considered promising as one form of effective use of solar heat.
Japanese Patent Laid-Open No. 2005-221101

  However, the above heat collection system is troublesome because a large number of small holes must be formed on almost the entire surface of the heat collection panel. In addition, since all the small holes are in communication with the outside air, after the air inside the heat collecting unit has heated up, some of them have escaped from the small holes to the outdoor side, or rain has fallen through the small holes. Since there is a possibility that corrosion due to oxidation may be promoted, it is necessary to cover the base material with a transparent panel such as glass. Therefore, there is a problem that the structure is complicated and the manufacturing cost is increased.

  The present invention solves the above-mentioned problems and, in recent years, pays attention to the fact that the heat shielding performance of the glass of the window opening is improved, and accordingly, the use of solar heat in winter is hindered, with a simple structure, Moreover, it is an object to provide a solar heat collecting wall structure that can effectively use solar heat at low cost.

  In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a spandrel is arranged and fixed on an outer wall of a wall of a building, a space is formed between the outer wall and the spandrel, and the space is formed from an end of the spandrel. The outside air taken in the inside is heated by a spandrel heated by solar heat, and the air in the space is introduced indoors through an air passage formed in the wall housing.

  The invention according to claim 2 is characterized in that, in claim 1, the upper and lower ends of the spandrel are fixed by an upper frame and a lower frame.

  The invention according to claim 3 is characterized in that, in claim 1 or 2, the spandrel is framed by an upper and lower frame and a vertical frame.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, a radiating fin is formed on the back side of the spandrel.

  The invention according to claim 5 is characterized in that, in any one of claims 1 to 4, the outer wall is provided with the spandrel via a base material having heat insulation properties.

  According to a sixth aspect of the present invention, in any one of the second to fifth aspects, the lower frame is formed with an air inlet that leads to the space.

  The invention according to claim 7 is characterized in that, in any one of claims 1 to 6, an intake fan is provided on the indoor side of the through hole.

  According to an eighth aspect of the present invention, in any one of the second to seventh aspects, a draining portion and a fitting groove are formed in the upper frame and the lower frame, and an upper end and a lower end of the spandrel are fitted in the fitting groove. It is characterized by being combined.

  The invention according to a ninth aspect is characterized in that, in any one of the first to eighth aspects, the spandrel is fixed to the outer wall of the connecting portion between the upper and lower or left and right sashes of the wall of the building.

  According to the first aspect of the present invention, since the air that has been taken in from the end of the spandrel and is heated in the space is introduced indoors through the through hole of the wall housing, the air that is heated in the space is outdoors. Therefore, since the spandrel is directly used as a solar heat collecting panel, there is no need to form a large number of small holes as in the prior art. Furthermore, rain does not enter the inside of the spandrel, and it is not necessary to cover it with a glass plate or the like from the outside of the spandrel.

  Furthermore, since the spandrel is a member that is originally used as an outer wall material, even if it is attached to the outer wall, there is no discomfort in appearance.

  In this way, since the structure is simple and the manufacturing cost can be suppressed, as a means to supplement that the use of solar heat in winter is hindered as the heat shielding performance of the glass of the window opening is improved, A solar heat collecting wall structure that can effectively use solar heat at low cost can be provided to the market.

  According to the second aspect of the invention, the upper and lower ends of the spandrel are fixed by the upper frame and the lower frame, so that the spandrel can be firmly fixed.

  According to the invention of claim 3, since the span drel is framed by the upper and lower frames and the vertical frame, the span drel can be more firmly fixed.

  According to the invention according to claim 4, since the heat radiation fin is formed on the back side of the spandrel, the spandrel is heated by solar radiation, and the heat radiation area is large by the heat radiation fin on the back side. Is warmed in a short time and the temperature rises.

  According to the invention according to claim 5, since the spandrel is provided on the outer wall through a base material having heat insulation properties, it is possible to prevent heat from escaping to the wall of the building on the back, and to warm air in the space. Therefore, the heat collected by the spandrel can be efficiently taken into the building.

  According to the sixth aspect of the present invention, since the air introduction port that directly communicates with the space inside the spandrel is formed in the lower frame constituting the frame body, the air introduction port is formed in the spandrel itself. There is no need to perform processing for the purpose. Therefore, the processing work for taking in outside air can be easily performed.

  Moreover, since the air inlet port is opened downward, there is little possibility that rainwater enters the inside of the span drel. Even if rainwater enters, water is naturally drained from the air inlet.

  According to the seventh aspect of the present invention, since the intake fan is provided on the indoor side of the through hole of the wall frame, the warm air in the inner space portion of the spandrel can be forcibly introduced to the indoor side.

  According to the invention which concerns on Claim 8, although the lower frame and upper frame which comprise a frame body fit the upper end and lower end of a spandrel, since the draining part is formed simultaneously, it can also be used as a draining material. In addition, the frame itself has a draining effect, and rainwater is unlikely to enter the spandrel, so that the entire apparatus is hardly corroded and durability is improved.

  According to the ninth aspect of the present invention, the spandrel generally used as an exterior material is fixed to the outer wall of the connecting portion between the upper and lower sashes of the wall case of the building. It is possible to make the exterior wall look like a curtain wall.

  1 is a perspective view of a building provided with a solar heat collecting wall structure, FIG. 2 is a longitudinal sectional view of the solar heat collecting wall structure, FIG. 3 is a transverse sectional view thereof, and FIG. 4 is a main portion of FIG. It is an enlarged view.

  In the upper figure, the symbol A indicates a solar heat collecting wall structure. The solar heat collecting wall structure A is constructed by fixing the spandrel 2 to the outer wall of the wall case 1 of the building in a framework and forming a space S between the outer wall and the spandrel 2, and the space from the lower part of the spandrel 2 The outside air taken in the portion S is heated by the spandrel 2 heated by solar heat, and the air in the space portion S is introduced indoors from the air passage 3 formed in the wall housing 1.

  The wall housing 1 having the solar heat collecting wall structure A is provided with an upper window sash a and a lower window sash b, a window base 4 supporting the lower frame a1 of the upper window sash a, and a lower window sash b. A lintel 5 that supports the frame b1, left and right pillars 6, and an inter-post 7 is formed, and an interior material 8 is attached to the indoor side and a heat insulating material 9 is attached to the outer wall side. And the plate-shaped base material 11 comprised with the heat insulating material via the spacer 10 is further extended by the outdoor side of the heat insulating material 9. As shown in FIG. A caulking material 12 is applied to the outer periphery of the base material 11.

  A framed spandrel 2 is fixed on the base material 11. As shown in FIG. 5, the spandrel 2 is formed by connecting a plurality of spandrel panels 2a made of extruded aluminum material having good thermal conductivity in a horizontal direction, and each spandrel panel 2a has a convex portion 13 and a concave portion 14 continuous. The base portion of the convex portion 13 on one side is bent inward to form a fixed edge 15, and an engaging edge 16 is formed on the other side. The fixed edge 15 and the engaging edge 16 are formed so as to be able to contact the base material 11. In addition, an L-shaped engagement groove 17 in which the end of the engagement edge 16 can be engaged is formed at the base of the fixed edge 15. Further, a plurality of rib-shaped heat radiating fins 18 are formed in parallel on the back side of the convex portion 13 protruding outward. The spandrel 2 is preferably surface-treated with black, brown, navy, dark brown, dark gray or the like having a good solar absorption rate. If the surface of the spandrel 2 is treated with a selective absorbent film, more sunlight is applied. Can be used efficiently.

  Next, the spandrel 2 is framed by a frame body 20 constituted by an upper frame 21, a lower frame 22, and left and right vertical frames 23 made of an extruded aluminum material. The upper frame 21 is provided with a hollow draining portion 24 at the upper portion of the fixed edge 15 abutting against the surface of the base material 11 and an attachment edge 26 having a fitting groove 25 opening downward at the lower portion. . On the other hand, the lower frame 22 is provided with a hollow draining portion 24 at the lower portion of the fixed edge 19 abutting against the surface of the base material 11 and an attachment edge 26 having a fitting groove 25 opening upward at the upper portion. It is a thing. Further, the vertical frame 23 is provided with a parting edge 27 on the outer side of the fixed edge 19 in contact with the surface of the base material 11 and an L-shaped presser edge 28 on the inner side. Note that a plurality of air inlets 30 are formed in the lower frame 22 at regular intervals. Any one of these air inlets 30 always faces the space S directly from the inside of the convex portion 13 of the spandrel 2.

  Then, as shown in FIG. 5, the span drel 2 is arranged in the surface direction by engaging the end of one engagement edge 16 of the adjacent span drel panel 2 a with the other L-shaped engagement groove 17. The fixing edge 15 of the spandrel panel 2a is fixed to the hollow crosspiece 31 with a screw so as to cross the spandrel panel 2a, and the lower end and the upper end of each spandrel panel 2a are respectively connected to the fitting groove 25 of the lower frame 22 and the upper frame 21. The frame is formed by fitting into the fitting groove 25 and fastening with screws from the back side, and further pressing the side end portions of the left and right spandrel panels 2a with the holding edges 28 of the vertical frame 23.

  Further, an air passage 3 that penetrates through the wall housing 1 from the upper part of the base material 11 and communicates with the indoor side is formed, and an intake fan 33 that introduces the air in the inner space S of the spandrel 2 into the indoor side is formed on the indoor side. It is attached.

  When the spandrel 2 is attached between the upper window sash a and the lower window sash b of the building, first, the base material 11 is screwed to the outdoor side of the wall case 1 through a spacer, and the surroundings are caulked. The frame body 20 provided with the spandrel 2 is overlaid on the base material 11, and the wood screw 32 is inserted from the fixed edge 19 of the frame body 20 to insert the window base 4 of the upper window sash a and the lintel 5 of the lower window sash b. It is only necessary to fasten and fix to.

  With the above configuration, a space portion S is formed between the base material 11 and the spandrel 2. Further, the upper frame 21 and the lower frame 22 at the upper end of the solar heat collecting wall structure are respectively disposed immediately below the lower frame 22 of the upper window sash a and directly above the upper frame 21 of the lower window sash b. The protruding width from the outer wall is the same as that of the lower frame 22 and the upper frame 21.

  Next, the operation of the solar heat collecting wall structure will be described. When sunlight is directly applied to the spandrel 2 (including scattered light), the spandrel 2 is heated by radiant heat. Since the spandrel 2 is formed in an angular waveform, the surface area is large, and since the plurality of rib-shaped heat radiation fins 18 are formed on the back side of the convex portion 13, the heat radiation area is large. For this reason, the air in the inner space S of the spandrel 2 is warmed in a short time and the temperature rises. Since a heat insulating material is disposed between the outer wall and the spandrel 2, heat escape to the wall of the building on the back is prevented, and warm air can be confined while being warmed in the space S. . Therefore, when the intake fan 33 is operated, warm air in the space S is introduced from the air passage 3 to the indoor side. When the warm air in the space S is sent to the indoor side, outside air is supplied into the space S from the air inlet 30 formed in the lower frame 22. The supplied outside air is warmed by the spandrel 2, becomes warm air, and is forcibly sent to the indoor side by the intake fan 33. This is done continuously to warm the indoor space.

  As mentioned above, fresh outdoor air is warmed and continuously introduced into the indoor side, so solar heat can be used effectively, especially in winter, complementing the glass heat insulation at the window opening. Can be expected.

  Further, since the spandrel 2 is directly used as a solar heat collecting panel, it is not necessary to form a large number of small holes as in the prior art. Furthermore, rain does not enter the inside of the spandrel 2, and it is not necessary to cover the spandrel 2 with a glass plate or the like from the outside. In addition, since the air introduction port 30 that directly communicates with the space portion S inside the spandrel 2 is formed in the lower frame 22 constituting the frame body 20, the air introduction port 30 is formed in the span drel 2 itself. There is no need to perform processing for the purpose. Therefore, the structure is simple and the manufacturing cost can be kept low.

  Furthermore, since the spandrel 2 is a member that is originally used as an outer wall material, there is no sense of discomfort in appearance even if it is attached to the outer wall. And since it is provided in the connection part between the upper and lower window sashes of the wall case 1 of a building, it can unite with the upper and lower window sashes and can make the external appearance of the curtain wall tone.

  In addition, since the air inlet 30 of the lower frame 22 opens downward, there is a low possibility that rainwater will enter the inside of the span drel 2. Even if rainwater enters, water can be easily drained from the air inlet 30.

  Furthermore, the lower frame 22 and the upper frame 21 constituting the frame body 20 fit the upper end and the lower end of the spandrel 2, but since the draining portion 24 is formed at the same time, the draining material can also be used, Since the frame body 20 itself has a draining effect and rainwater does not easily enter the spandrel 2, the entire apparatus is hardly corroded and durability is improved.

  In addition, since the corrugated plate is used as the spandrel 2, the overall strength of the surface is increased by the rib effect, and the surface area is increased to improve the heat collection efficiency. However, the cross-sectional shape is not particularly limited, and any metal exterior material may be used, and a normal corrugated folded plate may be used.

  Further, although the above-described spandrel 2 is framed on the four sides by the upper and lower frames and the vertical frame, it is not always necessary to assemble the four sides of the spandrel with the frame. Only the upper and lower frames as shown in the above embodiment may be used. Therefore, the space S is not necessarily formed by the spandrel frame.

  Further, the air inlet 30 may be formed not through the bottom of the mounting edge 26 of the lower frame 22 but through the rising piece constituting the fitting groove 25 of the lower frame 22 and the span drel 2. You may form in upper part.

  In this connection, the introduction port for taking outside air into the spandrel is not necessarily provided at the lower end of the spandrel. The structure provided in the upper end part of a spandrel may be sufficient. In this case, the formation position of the air passage 3 is not limited to the upper part of the space S.

  Further, the cross-sectional shape of the spandrel panel is not limited to that shown in FIG. For example, the structure shown in FIG. 6 may be used. In the spandrel panel 2a, the convex portion 13 and the concave portion 14 are continuous with the inclined surface 34, and the angle α formed by the inclined surfaces 34 on both sides of the concave portion 14 is set to 60 degrees. According to this, since there is no part which becomes a shadow while the sun is in a high position, sunlight can shine directly to the deep part of the recessed part 14, so that the solar radiation efficiency is improved.

  Furthermore, the solar heat collecting wall structure may be arranged between the left and right window sashes.

The perspective view of the building provided with the solar heat collecting wall structure concerning this invention 1 is an enlarged vertical sectional view of the solar heat collecting wall structure of FIG. Expanded cross-sectional view of the solar heat collecting wall structure Enlarged view of the main part of FIG. Spandrel panel connection mode illustration Explanatory drawing of connection mode of spandrel panel of another form

Explanation of symbols

S space part 1 wall frame 2 spandrel 3 air passage

Claims (9)

  A spandrel is placed and fixed on the outer wall of the building wall, and a space is formed between the outer wall and the spandrel, and the outside air taken from the end of the spandrel into the space is heated by the spandrel heated by solar heat. And a solar heat collecting wall structure, wherein air in the space is introduced indoors through an air passage formed in the wall housing.   The solar heat collecting wall structure according to claim 1, wherein upper and lower ends of the spandrel are fixed by an upper frame and a lower frame.   The solar heat collecting wall structure according to claim 1 or 2, wherein the spandrel is framed by an upper and lower frame and a vertical frame.   The solar heat collecting wall structure according to any one of claims 1 to 3, wherein a radiating fin is formed on the back side of the spandrel.   The solar heat collecting wall structure according to any one of claims 1 to 4, wherein the outer wall is provided with the spandrel via a base material having heat insulation properties.   The solar heat collecting wall structure according to any one of claims 2 to 5, wherein an air introduction port leading to the space is formed in the lower frame.   The solar heat collecting wall structure according to claim 1, wherein an intake fan is provided on the indoor side of the through hole.   A draining part and a fitting groove are formed in the upper frame and the lower frame, and an upper end and a lower end of the spandrel are fitted in the fitting groove. Solar heat collecting wall structure described in 1.   The solar heat collecting wall structure according to any one of claims 1 to 8, wherein the spandrel is fixed to the outer wall of the connecting portion between the upper and lower or left and right sashes of the wall of the building.

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