JP5898745B1 - Photovoltaic outer wall panel with hot water supply function - Google Patents

Abstract

A solar power generation outer wall panel with a hot water supply function that has a simple structure, is inexpensive to provide, reduces the risk of failure, and can supply sufficient hot water even in winter when the sunlight is short I will provide a. A case having a bottom plate and a side wall, a reflective film being formed on the inner surface of the bottom plate and the side wall, a photovoltaic power generation panel that closes an opening of the case, and A partition plate 18 that partitions the internal space of the case 10 in the height direction, and an endothermic water supply pipe that is disposed between the bottom plate 12 and the partition plate 18 with the start end portion 24 and the end portion 26 opened on the outer surface of the case 10. 20A, 20B, and the partition plate 18 is provided with a second reflective film on the surface on the side where the heat absorbing water supply pipes 20A, 20B are provided, and a through hole 19 that penetrates the second reflective film and the partition plate 18 is provided. Is a solar power generation outer wall panel 100 with a hot water supply function. [Selection] Figure 5

Description

  The present invention relates to a photovoltaic power generation outer wall panel with a hot water supply function.

  In order to prevent depletion of underground resources and global warming, it is strongly desired to provide a power generation apparatus that does not require fuel for power generation and that does not emit carbon dioxide during power generation. As such a power generation device, there is a power generation method using so-called natural energy, and specifically, a solar power generation device, a wind power generation device, a micro hydropower generation device, and the like are known. Among these power generators using natural energy, solar power generators have been widely distributed in recent years.

As a prior art regarding such a photovoltaic power generation apparatus, a configuration disclosed in Patent Document 1 is known.
Patent Document 1 discloses a photovoltaic power generation / heat collection hybrid panel comprising a combination of a solar cell module for taking out electric power directly from sunlight and a heat collection panel for taking out heat energy from sunlight. The panel is brought into thermal contact with an external secondary refrigerant circulated from an external heat receiving part provided outside the hybrid panel at a predetermined heat exchange part, and the heat absorbed from sunlight is passed to the external secondary refrigerant. An internal primary refrigerant to be supplied is sealed in advance, and electric power and hot water can be supplied using solar energy.

Japanese Patent No. 3583871

  Since the configuration of the photovoltaic power generation-heat collection hybrid panel according to Patent Document 1 is complicated, there is a problem that the panel manufacturing cost increases and becomes a drag on the spread. In addition, since the panel structure is complicated, there is a problem that the risk of failure occurrence is high. Furthermore, since the structure of the part which performs heat exchange is complicated, there also exists a subject that the success rate of warm water in winter etc. with a short sunshine time becomes low.

  Therefore, the present invention provides a solar power generation with a hot water supply function that can provide a sufficient amount of hot water even in winter when the provision cost is low, the risk of failure occurrence is reduced, and the sunshine time is short. The main purpose is to provide exterior wall panels.

In order to solve the above problems, the present inventor has intensively studied, and as a result, has come up with the following configuration.
That is, a case having a bottom plate and a side wall rising from an outer peripheral edge position of the bottom plate and having a reflective film formed on at least the inner surface of the bottom plate, and an arrangement for closing the opening of the case are arranged in the case. The bottom plate and the partition in a state in which the photovoltaic power generation panel provided, the partition plate that partitions the internal space of the case in the height direction of the side wall, and the start end and the end portion open on the outer surface of the case An endothermic water supply pipe disposed between the first and second plates, and a second reflective film is disposed on the surface of the partition plate on the side where the endothermic water supply pipe is disposed. In addition, there is provided a solar power generation outer wall panel with a hot water supply function, wherein a plurality of through holes penetrating the second reflective film and the partition plate in the thickness direction are formed.

  Thereby, a solar power generation outer wall panel with a hot water supply function can be made into a simple structure. In addition to solar power generation, the heat absorption water supply pipe can be efficiently heated by the heat energy from sunlight that has passed through the through hole of the partition plate, so it is sufficient even in winter when the sunshine time is short. Hot water can be supplied.

  The endothermic water supply pipes are preferably arranged in two upper and lower arrangements with different arrangement height positions.

  As a result, it is possible to extend the arrangement of the endothermic water supply pipe and increase the endothermic opportunity by the endothermic water supply pipe, so that the water can be reliably heated even in winter when the sunlight is short.

  In the endothermic water supply pipe, it is preferable that the meandering line shape of the endothermic pipe in the lower stage and the meandering line shape of the endothermic water supply pipe in the upper stage are orthogonal to each other in a horizontal plane.

  As a result, the portion of the lower heat absorption water supply pipe that is shaded by the upper heat absorption water supply pipe can be reduced as much as possible, and loss of the heat absorption opportunity can be minimized.

  Moreover, it is preferable that the said reflecting film is arrange | positioned on the surface of the coating surface for heat insulation apply | coated to the inner surface of the said case.

  As a result, the temperature of the internal space of the case where the endothermic water supply pipe is disposed can be prevented from decreasing, and negative heat absorption by the endothermic water supply pipe (an endotherm that lowers the water temperature in the endothermic water supply pipe) can be prevented. Can do. Such a structure is particularly advantageous in cold regions.

  Moreover, it is preferable that a connector for connecting the cases is disposed on the outer surface of the case, and when the cases are connected, the one disposed in one of the cases More preferably, the connector and the connector disposed in the other case are disposed at a height position overlapping in the thickness direction.

  By these, the adjacent solar power generation outer wall panel with a hot water supply function can be easily connected.

  Further, it is preferable that a drain hole is formed in the side wall.

  As a result, even when rainwater or the like enters the case when it is used as the outer wall of a building, it can be drained immediately outside the case, resulting in damage to the photovoltaic power generation panel, etc. housed in the internal space of the case Can be prevented.

  Moreover, it is preferable that the surface of the said partition plate in which the said battery for photovoltaic power generation is arrange | positioned is painted black.

  Thereby, since reflection of sunlight to the outside of the solar power generation outer wall panel with a hot water supply function is prevented, dazzling when passing near the solar power generation outer wall panel with a hot water supply function can be prevented.

According to the solar power generation outer wall panel with a hot water supply function according to the present invention, the solar power generation panel and the heat absorption water supply pipe that is a part of the hot water supply unit are integrated with the outer wall panel of the building with a simple configuration, so that the efficiency Therefore, it is possible to provide a solar power generation outer wall panel with a hot water supply function capable of utilizing solar energy at low cost. In addition, since the internal structure is simple, it is possible to provide a solar power generation outer panel with a hot water supply function that has a low risk of failure and is easy to use with low maintenance frequency.
And by using the solar power generation outer wall panel with a hot water supply function according to the present invention as the outer wall material of the building, it is possible to reduce the construction construction cost of the building, and even if it is not a craftsman, the building is constructed. It is possible to prevent delays in building construction due to a shortage of craftsmen in the future. The term “building” as used herein is a concept that includes not only ordinary houses but also building structures represented by factories and the like and civil engineering structures represented by airports and bridges.

It is a perspective view of the solar power generation outer wall panel with a hot water supply function concerning a 1st embodiment. It is sectional drawing in the 2-2 line in FIG. It is sectional drawing in the 3-3 line in FIG. It is a disassembled perspective view which shows the state which decomposed | disassembled each structure of the photovoltaic power generation outer wall panel with a hot water supply function concerning 1st Embodiment. It is a disassembled perspective view of the solar power generation outer wall panel with a hot-water supply function concerning 2nd Embodiment.

(First embodiment)
Hereinafter, an embodiment of a solar power generation outer wall panel with a hot water supply function according to the present invention will be described based on the drawings.
As shown in FIGS. 1 to 4, the photovoltaic power generation outer wall panel 100 with a hot water supply function according to the present embodiment includes a bottom plate 12 and a side wall 14 that rises from an outer peripheral edge position of the bottom plate 12. The case 10 in which the reflective film 15 is formed on the inner surface of each of the 14, the solar power generation panel 30 disposed in the case 10 so as to close the opening 16 of the case 10, and the side wall 14 are divided into two in the height direction. And a heat absorbing water supply pipe 20 disposed between the bottom plate 12 and the partition plate 18.

  Insulating surfaces 12A and 14A for heat insulation are formed on the inner surfaces of the bottom plate 12 and the side wall 14 in the present embodiment. The reflection film 15 is disposed in a state of being laminated on the surfaces of the heat insulating coating surfaces 12A and 14A. In particular, the reflective film 15 disposed on the inner surface of the side wall 14 may be disposed only in a range below the partition plate 18.

  Further, the internal space 17 of the case 10 is divided into two in the height direction by the partition plate 18 disposed on the side wall 14. A second reflective film 18A is disposed on the surface of the partition plate 18 on the bottom plate 12 side (the lower surface of the partition plate 18). A plurality of through-holes 19 penetrating the second reflective film 18A and the partition plate 18 in the thickness direction are formed in the partition plate 18 with a required interval therebetween. Moreover, the solar power generation panel 30 side (upper surface of the partition plate 18) of the partition plate 18 is black-coated.

  In the case 10 in this embodiment, the entire inner surface of the lower internal space 17A partitioned by the partition plate 18 is formed by the reflective film 15 and the second reflective film 18A. The sunlight irradiated to the photovoltaic power generation outer wall panel 100 with a hot water supply function can enter the lower inner space 17A from the through hole 19 of the partition plate 18 after passing through the transparent portion of the photovoltaic power generation panel 30. The lower inner space 17A can be heated. As described above, since the heat insulating coating surfaces 12A and 14A are formed on the bottom plate 12 and the side wall 14 on the living space side of the building, the thermal energy accumulated in the lower internal space 17A is represented by the living space. There is no movement to the interior space side of the building.

  In the lower internal space 17A, a lower heat absorption water supply pipe 20A and an upper heat absorption water supply pipe 20B, which are part of the hot water supply section, are disposed. The lower and upper endothermic water supply pipes 20 </ b> A and 20 </ b> B are disposed in a state of being separated from the surface of the bottom plate 12 by spacers 22 </ b> A and 22 </ b> B disposed on the upper surface of the bottom plate 12. The lower and upper endothermic water supply pipes 20 </ b> A and 20 </ b> B are arranged in an array reciprocated along the longitudinal direction of the case 10.

  Thus, the lower and upper heat absorption water supply pipes 20A and 20B are disposed in the lower inner space 17A, which is a closed space that does not face the outer surface of the solar power generation outer wall panel 100 with a hot water supply function. The lower inner space 17A can be irradiated with sunlight by the sunlight that has passed through the through-hole 19 formed in 18 and the water in the lower and upper endothermic water supply pipes 20A and 20B can be heated. it can.

  In the present embodiment, the planar position of the portion of the upper-stage endothermic water supply pipe 20B extending along the longitudinal direction of the case 10 and the lower-stage endothermic water supply pipe 20A extending along the longitudinal direction of the case 10 are provided. They are arranged so as to be alternately arranged with the planar positions of the portions. By adopting such an arrangement, it is possible to prevent the lower endothermic water supply pipe 20A from being hidden behind the upper endothermic water supply pipe 20B, and sunlight is applied to the lower and upper endothermic water supply pipes 20A, 20B. The water can be heated by direct irradiation.

  The lower and upper endothermic water supply pipes 20A and 20B are connectable to a water supply unit and a hot water storage tank (both not shown) constituting a hot water supply unit together with the lower and upper endothermic water supply pipes 20A and 20B. The start end 24 (the end connected to the water supply side (so-called upstream)) and the end 26 (the end connected to the hot water storage tank (so-called downstream)) are opened (exposed) on the outer surface of the case 10. ). The lower end and upper end heat absorption water supply pipes 20A and 20B have a start end portion 24 and a terminal end portion 26 that are formed in a pair of plug structures that are detachably fitted into a male and female, so The start end portion 24 and the end end portion 26 of the lower and upper endothermic water supply pipes 20A and 20B in the panels 100 can be connected.

  Here, in the adjacent photovoltaic power generation outer wall panel 100 with a hot water supply function, the start end portion 24 of the heat absorption water supply pipe 20 of one solar power generation outer wall panel 100 with a hot water supply function and the other photovoltaic power generation outer wall panel 100 with a hot water supply function. Although the structure which directly connects the terminal part 26 of the water supply pipe 20 for heat absorption of this is illustrated, the structure which connects both through the coupling tool which is not shown in figure is also employable. In this case, it is preferable that the connector is made of a heat insulating material.

In addition, a solar power generation panel 30 that generates power by sunlight is disposed in the opening 16 of the case 10 of the present embodiment so as to cover the opening 16. An upper internal space 17 </ b> B is formed by the photovoltaic power generation panel 30, the side wall 14, and the partition plate 18. The solar power generation panel 30 in the present embodiment exemplifies the single-sided power generation type solar power generation panel 30 in which the power generation cells 32 are disposed on the outer surface side position of the case 10, but also on the inner surface side position of the case 10. It can also be set as the double-sided power generation type solar power generation panel 30 provided with the power generation cell 32.
Since electrical connection of the photovoltaic power generation panels 30 between the adjacent photovoltaic power generation outer wall panels 100 with a hot water supply function can be performed by a known method, detailed description thereof is omitted here.

  Since the upper internal space 17B is disposed adjacent to the photovoltaic power generation panel 30 in this manner, the upper internal space 17B functions as a heat insulating material, and is thermally connected to the high temperature lower internal space 17A that is a so-called hot water supply space. A discontinuous structure can be obtained. Thereby, the fall of the power generation efficiency by the temperature rise of the photovoltaic power generation panel 30 can be prevented.

  As described above, since the upper surface of the partition plate 18 is painted black, the sunlight irradiated to the solar power generation outer wall panel 100 with a hot water supply function is reflected to the outside of the solar power generation outer wall panel 100 with a hot water supply function. To prevent. Accordingly, it is convenient for a pedestrian or vehicle driver who passes around the building using the solar power generation outer wall panel 100 with a hot water supply function according to the present invention as an outer wall material without causing dazzling due to reflected light.

(Second Embodiment)
FIG. 5 is an exploded perspective view of a solar power generation outer wall panel with a hot water supply function according to the second embodiment. In the present embodiment, the same configurations as those of the first embodiment are denoted by the same reference numerals used in the first embodiment, and detailed description thereof is omitted here.
The solar power generation outer wall panel 100 with a hot water supply function according to the present embodiment is employed as an outer wall material of a building, in which a connecting tool 40 for connecting adjacent solar power generation outer wall panels 100 with a hot water supply function is provided. In this case, a drain hole 50 is formed in the side wall 14 which is the lower position. The meandering line shape of the lower endothermic water supply pipe 20A and the meandering line shape of the upper endothermic water supply pipe 20B are arranged so as to be orthogonal to each other in the horizontal plane. The upper-stage endothermic water supply pipe 20B is arranged in a state of being directly superimposed on the lower-stage endothermic water supply pipe 20A.

  The connector 40 is disposed on the outer surface of the side wall 14 of the case 10. In the side wall 14 of the position which mutually opposes, the arrangement | positioning position of the connection tool 40 is arrange | positioned in the position shifted by the dimension equal to the thickness dimension d of the connection tool 40 in the height direction. When connecting the solar power generation outer wall panels 100 with a hot water supply function to be connected with each other via the connector 40, the connector 40 is connected in a state of being closely attached in the thickness direction. be able to. The photovoltaic power generation outer wall panels 100 with a hot water supply function can be connected to each other by fastening the connecting tool 40 in close contact with the plate thickness direction using known fastening means represented by bolts and nuts.

  Moreover, since the drainage hole 50 is provided in the side wall 14 which is the lower position of the photovoltaic power generation outer wall panel 100 with a hot water supply function, electrical precipitation due to accumulation of precipitation inside the photovoltaic power generation outer wall panel 100 with a hot water supply function. Occurrence of defects such as a short circuit can be prevented.

  By arranging the meandering lines of the upper and lower heat absorption water supply pipes 20A and 20B so as to be orthogonal to each other in the horizontal plane, an overlapping portion between the lower heat absorption water supply pipe 20A and the upper heat absorption water supply pipe 20B is possible. Can be reduced. That is, it is possible to prevent loss of the endothermic opportunity of the lower and upper endothermic water supply pipes 20A and 20B. Further, if the outer surfaces of the lower and upper heat absorption water supply pipes 20A and 20B are made reflective surfaces, sunlight can be diffusely reflected in the lower inner space 17A, increasing the endothermic opportunities in the lower inner space 17A. Convenient in that it can be.

  Thus, by using the photovoltaic power generation outer wall panel 100 with a hot water supply function in this embodiment as an outer wall material of a building, power generation and hot water supply using solar energy can be performed, which contributes to energy saving of the building. Moreover, since the connection structure of the photovoltaic power generation outer wall panels 100 with a hot water supply function is very simple, even an operator who is not a so-called craftsman can perform the outer wall construction of a building. Here, the outer wall material does not necessarily need to be a wall member, and if it constitutes the outer surface of a building, it is included in the outer wall material (outer wall panel) in this specification.

  The solar power generation outer wall panel 100 with a hot water supply function according to the present invention has been described above based on the present embodiment, but the technical scope of the solar power generation outer wall panel 100 with a hot water supply function according to the present invention is as described above. It is not limited to. For example, in the above embodiment, a description will be given of a form in which the lower endothermic water supply pipe 20A and the upper endothermic water supply pipe 20B having different height positions are arranged in two stages in the lower internal space 17A. However, it is not limited to the upper and lower two-stage arrangement, and may be arranged in a single stage or in three or more stages.

  Further, the lower-stage endothermic water supply pipe 20A and the upper-stage endothermic water supply pipe 20B are supported by elongated body-shaped spacers 22A and 22B along the extending direction of the pipe, respectively, but the lower-stage endothermic water supply pipe 20A. It is also possible to adopt the form of block-shaped spacers 22A and 22B that spot-support the heat absorption water supply pipe 20B in the upper stage.

  Moreover, although the upper surface side of the partition plate 18 demonstrated the form which gave black coating, the upper surface of the partition plate 18 can also be formed in a reflective surface. In this case, it is preferable to employ a so-called double-sided power generation type solar power generation panel 30 and to apply an antiglare treatment to the covering material (cover glass) of the solar power generation panel 30.

Further, although the reflective film 15 is described as being disposed on the inner surfaces of the bottom plate 12 and the side wall 14 in a state of being laminated on the heat insulating coating surfaces 12A and 14A, the reflective film 15 is at least the inner surface of the bottom plate 12. What is necessary is just to be formed. Further, it is possible to adopt a form in which the reflective film 15 is directly formed on the inner surface of the bottom plate 12 (and the side wall 14) without providing the heat insulating coating surfaces 12A and 14A.
Furthermore, the form which combined the above embodiment and said modification arbitrarily can also be employ | adopted.

10 cases, 12 bottom plate, 12A painted surface for heat insulation,
14 side wall, 14A heat insulation painting surface, 15 reflective film, 16 opening,
17 internal space, 17A lower internal space, 17B upper internal space,
18 partition plate, 18A second reflective film, 19 through hole,
20A Lower heat absorption water supply pipe, 20B Upper heat absorption water supply pipe,
22A, 22B spacer, 24 start end, 26 end,
30 solar panels, 32 power generation cells,
40 connector, 50 drain hole,
100 Solar power generation outer panel with hot water supply function

Claims (8)

A case having a bottom plate and a side wall rising from an outer peripheral edge position of the bottom plate, and a reflective film formed on at least the inner surface of the bottom plate;
A photovoltaic panel disposed in the case in an arrangement to close the opening of the case;
A partition plate that partitions the internal space of the case in the height direction of the side wall;
A heat-absorbing water supply pipe disposed between the bottom plate and the partition plate in a state where a start end portion and a terminal end portion are opened on the outer surface of the case;
In the partition plate,
A second reflective film is disposed on the surface on which the endothermic water supply pipe is disposed, and a plurality of through holes penetrating the second reflective film and the partition plate in the thickness direction are formed. Solar power generation outer panel with hot water supply function, characterized by   2. The solar power generation outer wall panel with hot water supply function according to claim 1, wherein the endothermic water supply pipes are arranged in an upper and lower two-stage arrangement with different arrangement height positions.   3. The hot water supply function according to claim 2, wherein in the endothermic water supply pipe, the meandering line shape of the endothermic water supply pipe in the lower stage and the meandering line shape of the endothermic water supply pipe in the upper stage are orthogonal to each other in a horizontal plane. Solar power generation outer wall panel.   The said reflective film is arrange | positioned on the surface of the coating surface for heat insulation apply | coated to the inner surface of the said case, The solar with hot water supply function as described in any one of Claims 1-3 characterized by the above-mentioned. Photovoltaic outer wall panel.   The solar power generation with a hot water supply function according to any one of claims 1 to 4, wherein a connecting tool for connecting the cases to each other is disposed on an outer surface of the case. Exterior wall panel.   When the cases are connected, the connector disposed in one of the cases and the connector disposed in the other case are disposed at a height position where they overlap in the thickness direction. The photovoltaic power generation outer wall panel with a hot water supply function according to claim 5.   A drainage hole is formed in the side wall, The solar power generation outer wall panel with a hot water supply function according to any one of claims 1 to 6.   The solar panel with hot water supply function according to any one of claims 1 to 7, wherein the partition plate is painted black on the surface on which the photovoltaic power generation panel is disposed. Power generation outer panel.

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