JP2590786Y2 - Solar-powered building - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building utilizing solar heat effectively.

[0002]

[Technical background of the invention] A building in which the inside of the building is comprehensively surrounded by a heat insulating material to improve the heat insulating property and the airtightness of the building has been developed, and has been well received particularly in cold regions.

In such a building, since the inside of the building becomes a closed space, it is necessary to ventilate the inside of the building systematically. On the other hand, as described in JP-A-63-165633 and JP-A-64-75858,
It is known that air heated by collecting solar heat with a heat collector is supplied to a heat storage device arranged in the building to store heat, and this heat storage is gradually released to heat the inside of the building. I have.

[0004] However, such a building utilizing solar heat is comfortable during heating in winter, but cannot always provide a comfortable living environment in other seasons.

[0005] It is also known that a heat storage body such as concrete is arranged as a clay floor so that the heat is accumulated by direct irradiation of sunlight, and the heat storage is released to heat the inside of the building. (Direct gain method).

However, in this method, first, it is possible to heat a room facing south, but it is not possible to heat a room facing north, which is not irradiated with sunlight, and it is not possible to heat the entire building. could not. Secondly, in the summer season, the heat storage body may store and radiate heat or overheat, and as a result, heating is performed until the summer season, resulting in a problem that the living environment is rather damaged.

As described above, conventionally, attempts have been made to make the living environment comfortable by using solar heat. However, the main focus is on heating in winter, and a comfortable living environment is provided throughout the four seasons. Was not.

[0008]

[Purpose of the Invention] The present invention has been made in view of such circumstances, and not only can effectively utilize solar heat, but also can effectively utilize outdoor cold air, etc., and can realize a comfortable living environment throughout the four seasons. The purpose is to provide things.

[0009]

[Summary of the Invention] In order to achieve such an object, the solar thermal building according to the present invention is heated by sunlight while flowing outside air by a heat collecting device installed on a roof to warm the indoor space. The heat is guided to the heat storage device through the indoor flow path to store the heat, and is released indoors to perform indoor heating.On the other hand, when the heat collection device does not receive sunlight, it is cooled below a predetermined temperature. In a solar-powered building that sucks outside air into a room, guides it to a heat storage device through an indoor flow path, cools the room, and releases the room indoors to cool the room gently, heat storage that stores the heat of the heated warm air In addition to the device, further comprising a solar direct heat storage device that is arranged under the floor of the building so that sunlight is irradiated and directly stores the heat, and can release the stored heat into the building. I have.

[0010] According to the solar thermal building according to the present invention, when heating the interior of the building by using solar heat, the air collected by the heat collector and heated is guided to the heat storage device. To store heat and use this heat effectively for heating. The heating by the heat storage device is referred to as a first method.

In addition, in addition to this, in the present invention, the solar heat direct heat storage device is directly irradiated with sunlight to store heat, and this heat storage is released into the building. The heating by the direct solar heat storage device is referred to as a second method. Therefore, the first method is arranged on the north side of a building where sunlight is not irradiated, and the second method is used.
By arranging the method on the south side of a building irradiated with sunlight, the north side of a building that is difficult to warm can be effectively heated, and the entire building can be uniformly heated. Also, because the first and second methods are working together,
Heating efficiency is improved, and for example, it is effective for heating in extremely cold regions.

On the other hand, when the inside of the building is to be cooled gently, cooled outside air (for example, cold air at night) having a temperature equal to or lower than a predetermined temperature is guided to a heat storage device to store the cold air and discharge it indoors. Therefore, the inside of the building can be gently cooled by releasing cold heat.

In this case, as described in the second aspect, the underfloor ventilation opening is opened to allow ventilation in the building. Due to this ventilation, the temperature of the solar direct heat storage device of the second type does not rise so much, and overheating of the solar direct heat storage device can be effectively prevented. Therefore, it is possible to effectively prevent heating and damaging the living environment until the summer as in the related art.

From the above, according to the present invention, it is possible to uniformly heat the entire building in winter and cool down gently in summer, thereby providing a comfortable living environment throughout the four seasons. it can.

According to a third aspect of the present invention, there is provided a communication passage for guiding warm air heated by the heat collection device to the solar heat storage device, and a partition plate for opening and closing the flow of air in the communication passage. It is also possible to store the cold air in the second type solar direct heat storage device by sucking the outdoor air (night cold air) from the underfloor ventilation opening.

[0016]

DETAILED DESCRIPTION OF THE INVENTION Hereinafter, a solar-powered building according to three embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 7 show a first embodiment of the present invention. As shown in FIG. 1, in a solar thermal building 2 according to the first embodiment, a heat collecting device 6 is installed on a roof 4. The heat collecting device 6 has an intake port 8 that can take in outdoor air, and an internal flow path 10 through which the air taken in flows. The internal flow path 10 is irradiated with sunlight through a transparent member such as glass, and the outdoor air taken in here is heated. In order to enhance the efficiency of heat exchange with the internal air and enhance the reinforcing effect, a corrugated plate 12 having an uneven shape may be provided in the internal flow path 10 as shown in FIG. It is preferable to mount a heat insulating material 14 between the heat collecting device 6 and the roof 4. Further, as shown in FIG. 1, it is preferable to install a solar cell 16 on one surface of the heat collecting device 6 on the sunlight irradiation side.

One end of an indoor duct 18 for guiding the heated air in the internal flow passage 10 indoors is connected to the heat collecting device 6 thus installed. The other end of the indoor duct 18 is connected to a heat storage device 30 to be described later, and a flow path switching box 20 is provided in the middle of the indoor duct 18. The flow path switching box 20 includes a discharge duct 22
And a discharge / suction duct 24 are connected. The discharge duct 22 can discharge the air inside the indoor duct 18 to the outside. The discharge / suction duct 24 can discharge the air inside the indoor duct 18 to the outside and guide the outdoor air to the indoor duct 18. A discharge channel switching damper 26 and a suction channel switching damper 28 are mounted in a channel switching box 20 which is a branch between the indoor duct 18 and the discharge duct 22 and the discharge / suction duct 24. These switching dampers 26 and 28 are provided when the heat collecting device 6 and the heat storage device 30 communicate with each other.
And the exhaust duct 22 and the exhaust / suction duct 24 and the heat storage device 30 are selectively controlled. These switching dampers 2
6, 28 are preferably made of a material having excellent heat insulating properties and heat resistance, for example, heat-resistant expanded polystyrene (for example, trade name of Kaneka Chemical Co., Ltd .: Heat Max), silicone resin, or the like.

In the indoor duct 18 between the flow path switching box 20 and the heat collector 6 side, there is provided a first air duct capable of forcibly blowing the air in the heat collector 6 into the indoor duct 18. The fan 32 is mounted. In the discharge / suction duct 24, the air in the indoor duct is sucked / discharged in the duct 2.
While being able to forcibly discharge outdoors through 4 or
Conversely, a second fan 34 capable of forcibly sucking outdoor air from the suction / discharge duct 24 into the indoor duct 18 from the suction / discharge duct 24 is mounted. The first fan 32 is driven by the solar cell 16 arranged in the heat collecting device 6, and the second fan 34
In this embodiment, when the electromotive force generated by the solar cell 16 is driven by a storage battery (not shown), when the heat collector 6 does not receive sunlight, cooled outside air (for example, , Cold night) indoors,
A control means (not shown) is provided for driving the second fan 34 and for controlling the switching of the switching damper 28 so that the outside air is guided to the heat storage device 30 to cool and discharge the indoor air.

The heat storage device 30, to which the other end of the indoor duct 18 is connected, is disposed under the floor on the north side of the building to which the sunlight is not radiated much, and the air in the indoor duct 18 is guided to the inside of the device and flows through the inside. It exchanges heat with the exchanging air, stores cold or warm heat of the flowing air, and discharges the heat-exchanged air into the building. Heat storage device 30
Although it is not particularly limited, as shown in FIG. 2, a concrete block 32 having a plurality of air vents therein is used. The heating (cooling) by the heat storage device 30 is referred to as a first method.

The room above the heat storage device 30 may be finished with a space between the device 30 and the floor, or may be finished with the floor without taking this space. ,
Further, tatami mats may be installed.

In the outer periphery of the foundation 34, the outer periphery of the pillar 36, and the indoor side of the roofing material 4a in such a building 2, a heat insulating material 38 is provided so as to comprehensively surround the building, and furthermore, the underfloor space 40 and It is stretched so as to form an inner ventilation layer 44 that communicates with the attic space 42. An outer ventilation layer 48 may be formed between the heat insulating material 38 and the outer wall material 46 and between the heat insulating material 38 and the roof material 4a. Further, in a building that comprehensively surrounds the building with the heat insulating material 38 as described above, the underfloor ventilation port 50 is provided under the floor in order to ventilate the underfloor space 40, the inner ventilation layer 44, and the attic space 42. The ridge portion of the roof is provided with a ventilation hole 52 under the ridge. These ventilation openings are provided with underfloor opening / closing dampers 54 and underbuilding opening / closing dampers 56, respectively. The degree to which the dampers 54 and 56 preferably have heat insulation and airtightness is equal to or higher than that of Visassi Excel (trade name) of Kaneka Chemical Industry Co., Ltd.

In the thus constructed building 2, it is preferable to forcibly ventilate the room especially when the window is not opened at the time of cooling and heating.
For example, in a toilet or a bathroom, it is preferable to provide a ventilation device 58 capable of forcibly discharging air in a building to the outside.

Further, the switching damper 26 as described above
, The first fan 32, the second fan 34, and the solar cell 1
6 is provided with a control device (not shown). An external air sensor (not shown) for detecting an outdoor temperature is connected to the control device.

Further, in the present embodiment, sunlight is radiated to the soil floor on the south side of the building where sunlight is relatively easy to irradiate, heat is stored, and the stored heat can be released into the building. A solar direct heat storage device 60 is provided. The solar direct heat storage device 60 may be any device that can store heat, for example,
It is composed of concrete blocks. As an example of applying such a dirt floor to the solar direct heat storage device 60, as shown in FIG. 11, a gravel layer 71 is provided inside a foundation 70, and a concrete layer 73 is provided thereon via a vinyl sheet 72. Is also good. In this case, there is an effect that a large amount of heat can be obtained and dew condensation can be prevented. The heating by the direct solar heat storage device 60 is referred to as a second method.

Further, a vent hole is provided in the solar direct heat storage device 60 so that the warmed air is supplied to the above-described inner ventilation layer 44.
It may be circulated within. Further, a room above the solar thermal direct heat storage device 60 may be used as a greenhouse, and the air heated in this room may be circulated to another room. In any case, it is preferable that the above-described ventilator 58 be constantly driven.

The room above the solar direct heat storage device 60 may be directly finished with the concrete between the soils,
Alternatively, it is preferable to use a floor finish made of a material having good heat conductivity, and it is preferable not to install a tatami mat.

It is also possible to introduce cold air at night through the underfloor vent 50 into the solar direct heat storage device 60, and cool the device 60 gently to store the cool air. Next, the operation of the solar thermal building according to the present embodiment will be described.

When the season is winter, the underfloor ventilation port 50 and the underfloor ventilation port 52 are closed to heat the inside of the building, and the ventilation device 58 is constantly driven. Especially in the case of winter daytime, the first fan 3
2 may be driven and the second fan 34 may not be driven. In this state, the switching damper 26 is controlled so as to close the discharge duct 22 and the discharge / suction duct 24 as shown in FIG. Therefore, the air heated by the heat collecting device 6 passes through the indoor duct 18 and passes through the heat storage device 3.
0, where the heat is exchanged and stored, and also sent to each room, which contributes to the heating of each room, and is finally discharged from the ventilator 58 to the outside.

In the second method, as shown in FIG. 1, heat is stored by directly irradiating the solar heat storage device 60 with sunlight, and this heat storage is released into the building. In the present embodiment, the first method is disposed on the north side of a building where sunlight is not irradiated,
The second method is arranged on the south side of a building irradiated with sunlight. Therefore, it is possible to effectively heat the north side of a building that is difficult to warm, and to heat the entire building uniformly. In addition, since the first and second methods cooperate with each other, the heating efficiency is improved, and for example, it is effective for heating in extremely cold regions.

In the case of a winter night, as shown in FIG.
2 is not driven. In addition, since the switching damper 26 is controlled so as to close the discharge duct 22 and the discharge / suction duct 24, the inside of the building is gradually warmed by the heat stored in the heat storage device 30 and the solar direct heat storage device 60. Can be

Therefore, solar heat is effectively used for heating regardless of day and night. Next, in the case of summer,
As shown in FIG. 5, the switching damper 26 opens the discharge duct 22 and the discharge / suction duct 24, further opens the underfloor ventilation port 50 and the underfloor ventilation port 52 so that the ventilator 58 is always driven. Controlled.

On a summer evening, the first fan 3
2 is not driven, and the second fan 34 is driven to discharge the air in the indoor duct 18. For this reason, as shown in FIG. 5, relatively cool outside air in the summer night is introduced into the heat storage device 30 through the underfloor ventilation port 50, where heat is exchanged, and the cold heat is stored in the heat storage device 30. The cool air is exhausted by the second fan 34 through the indoor duct 18 and the exhaust / suction duct 24. The cool air released from the heat storage device 30 passes through each room and cools each room,
It is discharged from the ventilator 58.

The underfloor ventilation port 50 and the underfloor ventilation port 52
Is open, the cold air at night introduced from the underfloor ventilation opening 50 is transmitted to the underfloor space 40, each room, the inner ventilation layer 44,
Then, the air is discharged from the under-building ventilation opening 52 or the ventilation device 58 through the attic space 42 and the like. As a result, the inside of the building is ventilated, and is gently cooled by cold air at night.

Further, the second-time solar direct heat storage device 60 can be gently cooled by the nighttime cool air introduced from the underfloor ventilation opening 50, and the temperature of the solar direct heat storage device 60 heated in the daytime can be prevented from rising. .

Also, as a driving pattern of this summer night,
As shown in FIG. 6, the second fan 34 may be driven in the opposite manner to suck the cold air from the exhaust / suction duct 24 at night and supply it to the heat storage device 30 through the indoor duct 18. Also in this case, similarly to the above, the heat storage device 30
It can store cold air at night and discharge it indoors.

Next, in the afternoon of summer, the first fan 32 is driven to rotate, and the second fan 34 is not driven to rotate. FIG.
As shown in FIG. 7, since the heat collecting device 6 and the discharge duct 22 are in communication with each other, the driving of the first fan 32
The air heated in is discharged outside through the discharge duct 22. In this case, a heat exchanger may be attached to the discharge duct 22, and the heat exchanger may convert cold water into hot water or the like. In addition, the heat storage device 30 has cold heat stored in the summer night, and the inside of the building can be gently cooled by this cold heat, thereby assisting the cooling operation in each room.

At this time, in the second method, the sunshine is high in summer, so that the sunlight is not so much in the solar direct heat storage device 60.
Although it does not irradiate to some extent, it absorbs solar heat to some extent and rises in temperature. In this embodiment, the underfloor ventilation port 50 and the underfloor ventilation port 5
Since the openings 2 are opened, the outside air introduced from the underfloor ventilation openings 50 can effectively prevent the temperature rise of the solar thermal direct heat storage device 60, and can effectively prevent overheating of the solar thermal direct thermal storage device 60. The outside air introduced from the underfloor ventilation port 50 is discharged from the underfloor ventilation port 52 or the ventilation device 58 via the underfloor space 40, each room, and the like. Thus, in the spring and autumn seasons other than summer and winter when ventilation in the building is performed, for example, the underfloor ventilation port 50 and the underfloor ventilation port 52 can be opened for ventilation, and conditions such as outside air temperature can be achieved. A comfortable living environment can be realized by controlling the switching dampers 26 and 28 according to the conditions.

Next, referring to FIGS. 8 and 9, the second embodiment of the present invention will be described.
An example will be described. In this embodiment, the solar thermal direct heat storage device 60 is configured so that air can circulate therein, and also serves to store cold. A communication path 61 that connects the indoor duct 18 and the solar direct heat storage device 60 is provided so that air is supplied from the indoor duct 18. Further, a partition plate 62 that moves up and down to open and close the communication passage 61 is provided.

Next, the operation of the solar thermal building according to this embodiment will be described. In winter, the partition plate 62 is shut off, and the air discharged from the indoor duct is not circulated to the solar thermal direct heat storage device 60. , And the pattern shown in FIGS.

In the case of a summer night, there are two patterns as shown in FIGS. First, in the pattern shown in FIG. 8, the second fan 34 is driven so as to discharge air to the outside, and cool air is introduced not only into the heat storage device 30 but also into the solar direct heat storage device 60 through the underfloor ventilation port 50 to cool the storage device. Is done. In the present embodiment, the degree of cooling of the solar thermal direct storage device 60 is greater than in the cases shown in FIGS. 5 and 6, so that overheating of the solar thermal direct thermal storage device 60 can be further prevented. Furthermore, since the capacity for cold storage is larger than in the case of FIGS. 5 and 6, the room is further cooled.

Next, in the pattern shown in FIG. 9, the second fan 34 sucks the cold air at night through the exhaust / suction duct 24, so that not only the heat storage device 30 but also the solar direct heat storage device 6 is drawn.
It is driven so that cold air is also introduced to zero. In this case as well, as in the case shown in FIG.
Overheating can be further prevented, and the room can be further cooled.

In the daytime in summer, although not particularly shown, the driving is performed in substantially the same manner as in the case of FIG. As described above, in the present invention, the solar direct heat storage device 60 may be configured so that the air does not circulate therein as shown in the first embodiment, and as shown in the second embodiment. You may comprise so that warm air or cold air may circulate inside.

Next, a solar thermal building according to a third embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 10 and 11, the air circuit for guiding the warm air heated by the heat collecting device 6 to the heat storage device 30 provided under the floor is different from the first and second embodiments. First, generally, the indoor inlet 6a for warm air of the heat collecting device 6 is connected to a heat collecting box 95 disposed in the back space of the cabin by a plurality of flexible tubes 94. The heat collection box 95 is connected to a control box 100 for switching the flow of warm air by a flexible tube 98.
A fan (suction unit) for sucking warm air is provided in a flexible tube 98 in front of the control box 100.
99 are provided. One outlet of the control box 100 is connected to the heat storage device 30 via the indoor duct 105, and the other outlet of the control box 100 is connected to a discharge duct 104 connected to the drying chamber 67.

More specifically, as shown in FIG. 11, a rigid duct 6b is provided in the indoor inlet 6a of the heat collecting device 6, and a flexible tube 9 is provided in the duct 6b.
4 are connected. The flexible tube 94 may be any material as long as it can be bent, and is preferably made of a heat-insulating glass wool duct. FIG.
As shown in FIG. 5, a plurality of the flexible tubes 94 are provided, but it is preferable that these flexible tubes 94 have the same length as described later.

The heat collecting box 95 to which the flexible tube 94 is connected is formed in a rectangular parallelepiped box on the lower side and a quadrangular pyramid box on the upper side. A rigid duct 96 is provided at the entrance of the quadrangular pyramid box, and a flexible tube 94 is connected to the duct 96. Although only one flexible tube 94 is shown in FIG. 11, the other flexible tubes 94 are connected by a similar configuration. Further, a rigid duct 97 as an outlet is provided at the bottom of the rectangular parallelepiped box.
8 are connected. With such a configuration, warm air flowing out of each indoor inlet 6a of the heat collecting device 6 can be collected in the heat collecting box 95 by the plurality of flexible tubes 94. In addition, since the lower side of the heat collecting box 95 is formed in a rectangular parallelepiped box and the upper side is formed in a quadrangular pyramid-shaped box, it enters from the inlet side duct 96 and exits through the outlet side duct 97. The flow of warm air is not extremely bent. Therefore, it is possible to flow warm air without causing pressure loss.

As described above, since the heat collection box 95 is disposed in the space behind the cabin, and the heat collection box 95 and the heat collection device 6 are connected using the plurality of flexible tubes 94,
It is only necessary to connect the flexible tubes 94 without circulating the long heat collecting duct in the narrow cabin space as in the related art. Therefore, the work in the back space of the cabin can be made extremely simple and easy.

Further, since it is only necessary to connect the heat collecting box 95 and the heat collecting device 6 using the flexible tube 94, the heat collecting duct and the indoor inlet of the heat collecting device are conventionally connected. There is no need to perform a design for alignment, and mounting work on site is also facilitated. Furthermore, when laying the solar thermal apparatus in buildings having various structures, it is not necessary to design a heat collecting duct corresponding to each building, and it is possible to have versatility.

Further, by making the lengths of the plurality of flexible tubes 94 uniform, the distance from each indoor inlet 6a of the heat collecting device 6 to the heat collecting box 95 can be made uniform. Therefore, warm air is taken into the heat collecting box 95 from each indoor inlet 6a of the heat collecting device 6 at a uniform flow rate, and the air sufficiently warmed at various points of the heat collecting device 6 can be taken indoors. Heating efficiency can be improved.

Further, in the control box 100, a fan 99 capable of forcibly blowing air is disposed in the duct 101 on the entrance side. Further, inside the control box 100, the flow of warm air to the indoor duct 105 connected to the heat storage device 30 and the discharge duct 104
(Switching means) 10 for switching the flow of warm air to the air
2 are provided. Thereby, when the damper 102 is switched to close the discharge duct 104 as shown in FIG. 11, while the warm air flows into the heat storage device 30,
When the damper 102 has been switched to close the indoor duct 105, warm air is discharged to the drying chamber 67 through the discharge duct 104. The driving of the fan 99 and the switching of the damper 102 are controlled by appropriate control means (not shown) and driven by the above-described solar cell 16.

The other structure is the same as that of the first embodiment. Hereinafter, the operation of the solar thermal building according to the third embodiment will be described. In the case of winter daytime, as shown in FIG. 12, when the sun irradiates the solar cell 16, the electromotive force drives the fan 99. The damper 102 is switched to close the discharge duct 104. Therefore, the air heated by the heat collecting device 6 is supplied to the flexible tube 9.
4, heat collection box 95, control box 100,
And sent to the heat storage device 30 via the indoor duct 105,
As in the first embodiment, the interior is heated by cooperation with the solar direct heat storage device 60.

In the case of a winter night, as shown in FIG.
The solar cell 16 is not irradiated with sunlight, the fan 99 is not driven, and the damper 102 is switched to close the exhaust duct 104. As a result, inside the building,
The heat is gradually warmed by the heat stored in the heat storage device 30 and the solar thermal direct heat storage device 60. The ventilation in the building
Same as daytime.

In the summer night, as shown in FIG. 14, a relatively cool air at night is taken in to exert a cooling effect. That is, the fan 99 is driven,
The damper 102 closes the discharge duct 104, and as a result, cool air at night is taken into the heat storage device 30 via the heat collection device 6, the indoor duct 105, and the like. Thereby, the cold heat of the nighttime cool air is stored in the heat storage device 30, and the air discharged from the heat storage device 30 is discharged to each room. Thereby, the cool air due to atmospheric radiation in the heat collector 6 in the summer night can also be effectively used. Further, similarly to the first embodiment, since the underfloor ventilation opening 50 is opened, the cold air at night circulates indoors through the inner ventilation layer 44 and the like, and the building is appropriately and gently cooled. Furthermore, by the nighttime cool air introduced from the underfloor ventilation port 50,
The solar direct heat storage device 60 can be cooled gently,
It is possible to prevent the temperature of the solar thermal direct heat storage device 60 warmed in the daytime from rising.

Also, in this embodiment, similarly to the second embodiment shown in FIGS. 8 and 9, a communication path 61 and a partition plate 62 are provided so that cold air at night is introduced into the solar thermal storage device 60. There may be.

In the summer daytime, as shown in FIG. 15, the solar cell 16 is irradiated with sunlight, the fan 99 is driven, and the damper 102 is switched so as to close the indoor duct 105. Thus, the air heated by the heat collecting device 6 is discharged outside by the fan 99 through the discharge duct 24.

Also in this case, the underfloor ventilation port 50 is opened,
The cold heat stored in the summer night can be released indoors, and the indoors can be cooled down gently, and operates in the same manner as in the first embodiment. Further, as shown in FIG. 10, in a specific room,
The second-type solar direct heat storage device 60 is arranged in a part A (room in which sunlight on the south side is easy to enter) indicated by hatching rising to the right, and a part B (room in which sunlight on the north side is hard to enter) is indicated by hatching falling to the right It is conceivable to arrange the first-type heat storage device 30 in the first place.

If the ratio of the solar thermal storage device 60 to the total floor area of one floor is 30% or more, the heat storage effect can be sufficiently enhanced. It should be noted that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention.

[0058]

[Effects of the Invention] As described above, in the present invention, when heating the inside of a building by using solar heat, heat is collected by the heat collection device and the heated air is guided to the heat storage device to store the heat. This heat can be used effectively for heating.

In addition, in addition to this, in the present invention, the solar heat direct heat storage device is directly irradiated with sunlight to store heat, and this heat storage is released into the building. Therefore, the first method is arranged on the north side of a building where sunlight is not irradiated, and the second method is used.
By arranging the method on the south side of a building irradiated with sunlight, the north side of a building that is difficult to warm can be effectively heated, and the entire building can be uniformly heated. Also, because the first and second methods are working together,
Heating efficiency is improved, and for example, it is effective for heating in extremely cold regions.

On the other hand, when the inside of the building is to be cooled gently, cooled outside air (for example, nighttime cold air) having a temperature equal to or lower than a predetermined temperature is guided to a heat storage device to cool the air and discharge it indoors. Therefore, the inside of the building can be gently cooled by releasing cold heat.

At this time, the inside of the building can be ventilated by opening the underfloor ventilation opening. Due to this ventilation, the temperature of the solar direct heat storage device of the second type does not rise so much, and overheating of the solar direct heat storage device can be effectively prevented. Therefore, it is possible to effectively prevent heating and damaging the living environment until the summer as in the related art.

From the above, according to the present invention, it is possible to uniformly heat the entire building in winter and cool down gently in summer, thereby providing a comfortable living environment throughout the four seasons. it can.

[Brief description of the drawings]

FIG. 1 is a sectional view of a solar thermal building according to a first embodiment of the present invention.

FIG. 2 is a schematic perspective view of the heat storage device shown in FIG.

FIG. 3 is a schematic perspective view of the solar heat collecting apparatus shown in FIG.

FIG. 4 is a schematic cross-sectional view illustrating a winter night state of the building according to the first embodiment of the present invention.

FIG. 5 is a schematic sectional view showing a summer night state of the building according to the first embodiment of the present invention.

FIG. 6 is a schematic cross-sectional view showing a summer night state of a building according to a modification of the first embodiment of the present invention.

FIG. 6 is a schematic sectional view showing a state of a building according to the first embodiment of the present invention in the daytime in summer.

FIG. 8 is a schematic sectional view showing a summer night state of a building according to a second embodiment of the present invention.

FIG. 9 is a schematic cross-sectional view showing a summer night state of a building according to a modification of the second embodiment of the present invention.

FIG. 10 is a perspective view of a heat collecting device and a heat collecting box used for a solar thermal building according to a third embodiment of the present invention.

FIG. 11 is a cross-sectional view of a heat collection device, a heat collection box, a control box, and a heat storage device used for a solar thermal building according to a third embodiment of the present invention.

FIG. 12 is a schematic cross-sectional view of a solar thermal building according to a third embodiment of the present invention in a winter daytime state.

FIG. 13 is a schematic cross-sectional view of a building according to a third embodiment of the present invention in a winter night state.

FIG. 14 is a schematic sectional view showing a summer night state of a building according to a third embodiment of the present invention.

FIG. 15 is a schematic cross-sectional view of a building according to a third embodiment of the present invention in a summer daytime state.

FIG. 16 is a plan view of one floor of a building according to the first to third embodiments of the present invention.

FIG. 17 is a cross-sectional view showing one example of a solar thermal direct heat storage device.

[Explanation of symbols]

 2 Building using solar heat 4 Roof 6 Heat collector 16 Solar cell 18 Indoor duct 20 Channel switching box 22 Suction / discharge duct 26 Switching damper (switching means) 30 Heat storage device 32 First fan (suction means) 34 Second fan (suction) Means) 50 Underfloor ventilation opening 60 Solar direct heat storage device 99 Fan (suction means) 102 Damper (switching means)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-64-75858 (JP, A) JP-A-3-70929 (JP, A) JP-A-2-93227 (JP, A) 88350 (JP, U) Actually open 1979-171883 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04B 1/74-1/76 F24D 11/00 F24J 2/00- 2/26

Claims (5)

(57) [Scope of request for utility model registration] 1. A heat collector installed on a roof heats and warms the room with sunlight while flowing outside air, sucks it indoors, guides it to a heat storage device through an indoor flow path, and stores heat. When the heat collector does not receive the sunlight, the outside air cooled to a predetermined temperature or less is sucked into the room and guided to the heat storage device through the indoor flow path to cool the room. In addition to the heat storage device that stores the heat of the heated warm air, the building is constructed so that the heat is radiated by sunlight and the heat is directly stored, A solar thermal building further comprising a solar direct thermal storage device disposed under the floor and capable of releasing stored heat into the building. 2. The solar thermal building according to claim 1, further comprising an underfloor ventilation port arranged under the floor and capable of introducing outside air into the building. 3. A communication path for guiding warm air heated by the heat collection device to the solar thermal storage device, and a partition plate for opening and closing the flow of air in the communication path. The solar thermal building according to claim 1 or 2, wherein: 4. The solar thermal storage device is disposed under a southern floor in a building, and the thermal storage device is disposed under a northern floor in a building.
4. The building utilizing solar heat according to any one of items 3 to 3. 5. The suction means is driven by a solar cell disposed in the solar heat collecting apparatus, or is driven by a storage battery in which electromotive force generated by the solar cell is stored. The solar thermal building according to any one of 1 to 4.