JP6047050B2 - Building and its control system - Google Patents

Description

  The present invention relates to a building and a control system that can realize a comfortable indoor environment using natural energy while securing an underfloor space.

  The following Patent Document 1 discloses a building in which an air conditioner indoor unit and a heat storage unit are arranged in an underfloor space surrounded by a foundation and a floor. In this building, heat energy is stored in the heat storage unit using hot air supplied from the air conditioner indoor unit. Then, after the air conditioner indoor unit is stopped, the heat storage unit dissipates heat to warm the floor and perform floor heating.

JP 2005-42958 A

  However, when the heat storage unit is arranged in the underfloor space, the underfloor space becomes narrow, and there is a problem that maintenance workability in the underfloor space is deteriorated. In addition, there has been a desire to realize a comfortable indoor environment using natural energy.

  The present invention has been devised in view of the actual situation as described above, and the thermal energy generated by the solar radiation collected by the heat collecting means is arranged in the underfloor space and at least partly below the upper surface of the soil concrete. The main purpose is to provide a building and its control system that can realize a comfortable indoor environment by effectively using natural energy while ensuring a large underfloor space on the basis of storing in a heat storage means located.

The invention according to claim 1 of the present invention is a building having an underfloor space surrounded by a foundation and a floor, in which soil concrete is laid on the ground of the underfloor space, and collects thermal energy from solar radiation. A heat collecting means, a heat storage means for storing heat energy, and a first flow path for supplying the heat energy of the heat collecting means to the heat storage means, wherein the heat storage means is disposed in the underfloor space, and the heat storage means At least a part of the means is located below the upper surface of the soil concrete, and the heat storage means includes a pipe part through which air having thermal energy is guided from the first flow path, and the pipe part. A heat storage part for storing heat energy, wherein the heat storage part is a concrete material covering the pipe part, and the concrete of the heat storage part is made of the same material as the soil concrete. The dirt floor concrete and the heat storage unit is characterized in that integrally molded.

In the invention according to claim 2 , the heat storage part of the heat storage means has an embedded part embedded below the upper surface of the ground, and at least a part of the embedded part is covered with a heat insulating material. The building according to claim 1 .

According to a third aspect of the present invention, the building has an opening, and the heat collecting means is an outer sash disposed on the outdoor side of the opening, and an inner side disposed on the indoor side of the opening. A double sash having a sash and a sash space between the outer sash and the inner sash, wherein the sash space is provided with a supply unit for supplying air in the underfloor space, The 1 flow path is a building according to claim 1 or 2 , wherein warm air heated by solar radiation in the sash space is supplied to the heat storage means.

The invention according to claim 4 is the building according to claim 3 , wherein a solar radiation penetration rate of the glass of the outer sash is larger than a solar radiation penetration rate of the glass of the inner sash.

According to a fifth aspect of the present invention, the outer sash and the inner sash are held by a sash frame fixed to the opening, and the sash frame includes an upper frame and a lower frame disposed on an upper edge of the opening. A lower frame disposed on an edge, and a pair of left and right side frames connecting the upper frame and the lower frame, wherein one end of the first flow path is provided at an upper portion of the one side frame communicating with said sash space through the one end of the supply unit, according to claim 3 or 4 communicating with the sash space through a supply port provided in the other side frame side of the lower frame It is a building.

A sixth aspect of the present invention is the building according to any one of the first to fifth aspects, further comprising a second flow path for supplying the thermal energy stored in the heat storage means to the living room in the building.

According to a seventh aspect of the present invention, the first flow path has a first switching means between the heat collecting means and the heat storage means, and the first switching means is connected to the heat collecting means. Either air or air from the underfloor space can be communicated to the heat storage means, and the second flow path has second switching means between the heat storage means and the living room, and the second switching The means is a building according to claim 6 , wherein the air from the heat storage means can communicate with the living room or the underfloor space.

The invention described in claim 8 provides an underfloor space surrounded by a foundation and a floor, a heat collecting means for collecting thermal energy by solar radiation, a heat storage means for storing thermal energy, and supplying the heat energy of the heat collecting means to the heat storage means. A control system for controlling the temperature of the living room using a first flow path and a building having a second flow path for supplying thermal energy stored in the heat storage means to the living room in the building, The foundation is provided with a heat insulating material for blocking heat from the outside air, the underfloor space has an intake for taking in outdoor air, and the heat collecting means is on the outdoor side of the opening. A double sash having an outer sash disposed on the inside, an inner sash disposed on the indoor side of the opening, and a sash space between the outer sash and the inner sash, and the first flow path includes , The heat collecting means Between the heat storage means, there is a first switching means, and the first switching means can communicate either the air from the heat collection means or the air from the underfloor space to the heat storage means, The second flow path has a second switching means between the heat storage means and the living room, and the second switching means can communicate air from the heat storage means to the living room or the underfloor space. There, in the sash space, in the heat storage mode that is higher than the temperature α1 predetermined, by switching of the first switching means, together with the air from the heat collector means is in communication with the heat storage unit, the second switching by switching means, the air from the heat storage means is communicated with the underfloor space, within the sash space, wherein is the temperature α1 less, the room is at a heating mode is temperature α2 less than or equal to a predetermined The first switching hand By switching, together with the air from the underfloor space is communicated with the thermal storage unit, by the switching of the second switching means, the air from the heat storage means, characterized in that communicates with the room.

  The building of the present invention includes a heat collecting means for collecting thermal energy by solar radiation, a heat storing means for storing heat energy, and a first flow path for supplying the heat energy of the heat collecting means to the heat storing means. Thereby, the thermal energy by solar radiation is stored in a thermal storage means via a 1st flow path. The inside of a building can be heated by using the thermal energy stored in the heat storage means in a living room or the like. Therefore, a comfortable indoor environment using natural energy is realized.

  The heat storage means is arranged in the underfloor space, but at least a part thereof is located below the upper surface of the soil concrete. Accordingly, the volume occupied by the heat storage means in the underfloor space is reduced, and the underfloor space is sufficiently secured. For this reason, maintenance workability improves.

It is sectional drawing which shows notionally the structure of the building of this embodiment. It is sectional drawing which shows notionally a heat collection means, a heat storage means, a 1st flow path, and a 2nd flow path. It is a perspective view which shows a heat storage means notionally. (A) is a cross-sectional top view which shows the Example of a thermal storage means, (b) is a cross-sectional side view of (a). It is a perspective view which shows a double sash notionally. It is sectional drawing of a double sash. It is an enlarged view which shows the 1st channel and the 2nd channel conceptually. It is a flowchart of the control system which controls the temperature of a living room. It is sectional drawing explaining the thermal storage mode. It is sectional drawing explaining temperature rising mode.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the building B of this embodiment is applied to, for example, a general house or building. The building B of this embodiment has a foundation 2 fixed to the ground, a floor 3 on the first floor supported above the foundation 2, and an underfloor space 4 surrounded by the foundation 2 and the floor 3. .

  The foundation 2 is continuously arranged on the outer periphery of the building B. The foundation 2 of the present embodiment is made of reinforced concrete, and includes a base portion 2A that extends horizontally in the ground G, and a rising portion 2B that protrudes from the ground G, extending upward from the approximate center in the width direction of the base portion 2A. Is included.

  The rising portion 2 </ b> B protrudes from the upper surface (ground line) GL of the ground G serving as a reference for the vertical height of the building B and is disposed so as to surround the underfloor space 4. A base 6 and an outer wall 7 are fixed to the upper surface side of the rising portion 2B. The outer wall 7 is provided with a plurality of openings 8.

  On the ground G of the underfloor space 4, for example, ground crushed stone, ant-proof moisture-proof sheets (not shown), and soil concrete 10 are laid in order. Thereby, the soil concrete 10 is comprised as the bottom face 4b of the underfloor space 4. FIG.

  In the underfloor space 4, for example, a plurality of bundles 11 projecting upward from the soil concrete 10 and supporting the floor 3 are provided. The floor 3 is a flooring in which a plurality of plate panels 3a are arranged, for example.

  It is desirable that a heat insulating material 12 is provided in the underfloor space 4. In this embodiment, the heat insulating material 12a is provided on the rising portion 2B of the foundation 2. Thereby, the underfloor space 4 can be shielded from the heat of the outside air transmitted through the foundation 2. In order to effectively exhibit such an action, the heat insulating material 12a preferably has an L-shaped cross section extending along the rising portion 2B and the soil concrete 10. Moreover, in this embodiment, the heat insulating material 12b is provided in the lower surface of the floor 3 of the 1st floor. Thereby, the underfloor space 4 can be shielded from the heat of the room L on the first floor.

  The heat insulating material 12 is excellent in heat resistance and impact resistance, and is preferably a plate-like body such as polystyrene foam, urethane foam, or phenol foam. For example, in the case of extruded polystyrene, the thickness W1 of the heat insulating material 12a provided on the rising portion 2B of the foundation 2 is preferably about 40 to 100 mm. For example, in the case of extruded polystyrene, the thickness W2 of the heat insulating material 12b provided on the lower surface of the floor 3 is preferably about 30 to 80 mm. The same heat insulating material 12a provided on the foundation 2 and the heat insulating material 12b provided on the floor 3 are desirable.

  In the underfloor space 4, the air of outdoor So (hereinafter sometimes simply referred to as “outside air”) Ao is taken into the underfloor space, and the air in the underfloor space 4 (hereinafter simply referred to as “underfloor air”). There is an outlet 14 for supplying Ai to the living room L in the building B.

  The intake 13 is, for example, a hole that communicates between the underfloor space 4 and the outdoor So in the rising portion 2B of the foundation 2. The take-out port 14 is provided, for example, at the lower end of the air flow path 9a extending up and down in the partition wall 9 of the living room L. The air flow path 9a communicates with the living room L on the upper end side.

  As shown in FIG. 2, the building B of the present embodiment includes a heat collecting means 15 that collects heat energy from solar radiation, a heat storage means 16 that stores heat energy, and a heat collecting means 15 that supplies heat energy to the heat storage means 16. 1 flow path 17 and the 2nd flow path 18 which supplies the thermal energy stored in the thermal storage means 16 to the living room L are included. As a result, thermal energy from solar radiation is stored in the heat storage means 16 via the first flow path 17. By using the thermal energy stored in the heat storage means 16 in the living room L, the inside of the building can be heated. Therefore, a comfortable indoor environment using natural energy is realized.

  The heat storage means 16 of the present embodiment is disposed in the underfloor space 4. At least a part of the heat storage means 16 is located below the upper surface 10 a of the soil concrete 10. Therefore, the volume occupied by the heat storage means 16 in the underfloor space 4 is reduced, and the underfloor space 4 is sufficiently secured. For this reason, maintenance workability improves.

  The heat storage means 16 includes a pipe part 20 and a heat storage part 21 that stores thermal energy via the pipe part 20.

  The heat storage unit 21 has a rectangular parallelepiped shape in the present embodiment. The shape of the heat storage unit 21 is not particularly limited.

  The heat storage part 21 has an embedded part 21a embedded below the upper surface GL of the ground G. As for the heat storage part 21 of this embodiment, all the heat storage parts 21 are the embedded parts 21a. Thereby, the underfloor space 4 is further ensured, and the maintenance workability is further improved.

  The heat storage part 21 is a concrete material that covers the pipe part 20. Such a heat storage unit 21 has high rigidity and excellent durability. As concrete of the heat storage part 21, for example, one having a thermal conductivity of 1.6 to 1.8 (W / m · K) is desirable. Thereby, thermal energy is effectively stored.

  The heat storage unit 21 is more preferably the same concrete material as the soil concrete 10. Thereby, for example, after excavating the buried portion 21a portion provided in the ground G in advance, the concrete portion 10 between the soil and the heat storage portion 21 portion can be simultaneously placed by constructing the pipe portion 20. . That is, the soil concrete 10 and the heat storage part 21 are integrally constructed.

  At least a part of the embedded portion 21 a is covered with a heat insulating material 22. In the present embodiment, the upper surface 10a of the soil concrete 10 on the buried portion 21a, the side surface 21b of the buried portion 21a, and the bottom surface 21c of the buried portion 21a are covered with the heat insulating material 22. Thereby, as for the burying part 21a, the heat | fever from the ground G and the underfloor space 4 is interrupted | blocked effectively. For this reason, the thermal energy stored in the heat storage unit 21 is effectively maintained.

  The heat insulating material 22 is formed in a plate shape, for example. The heat insulating material 22 is preferably excellent in heat resistance and impact resistance, such as polystyrene foam, urethane foam, or phenol foam. For example, in the case of extruded polystyrene, the thickness W3 of the heat insulating material 22 is desirably about 50 to 150 mm.

  The pipe part 20 guides air having thermal energy (hereinafter, also referred to as “warm air”) Aw from the first flow path 17 to the heat storage part 21.

  FIG. 3 shows a perspective view of the heat storage means 16. As shown in FIG. 3, the pipe unit 20 includes a supply pipe 20 a that supplies warm air Aw to the inside of the heat storage unit 21, a circulation pipe 20 b that circulates the warm air Aw inside the heat storage unit 21, and a warm air Aw. And a discharge pipe 20c for discharging the heat from the heat storage section 21.

  The material of the pipe part 20 is preferably, for example, a synthetic resin such as polyethylene or a metal. Further, the inner diameter d of each of the pipes 20a, 20b, and 20c is preferably about 75 to 250 mm, for example.

  In the present embodiment, the supply pipe 20 a includes a distribution pipe 23 disposed outside the heat storage unit 21 and a plurality of connection pipes 24 connected to the distribution pipe 23.

  In the present embodiment, the distribution pipe 23 includes a main portion 23a connected to the first flow path 17 (shown in FIG. 2) and a plurality of branch portions 23b branched from the main portion 23a.

  The connection pipe 24 extends inside the heat storage part 21 and connects each branch part 23b and one end side of the circulating pipe 20b.

  In the present embodiment, the discharge pipe 20 c includes a collecting pipe 25 disposed outside the heat storage unit 21 and a plurality of connecting pipes 26 connected to the collecting pipe 25.

  In this embodiment, the collecting pipe 25 has a main portion 25a connected to the second flow path 18 (shown in FIG. 2) and a plurality of branch portions 25b branched from the main portion 25a.

  The connecting pipe 26 extends inside the heat storage section 21 and connects each branch section 25b and the other end side of the circulating pipe 20b.

  In this embodiment, the circulating pipe 20b includes a plurality of joint portions 27 that respectively connect the connection pipe 24 of the supply pipe 20a and the connection pipe 26 of the discharge pipe 20c.

  In the present embodiment, each joint portion 27 includes a plurality of horizontal pipes 28 that are arranged horizontally and in parallel, and a plurality of connection portions 29 that alternately connect both ends of adjacent horizontal pipes 28. It is formed in a bellows fold shape. The circulating pipe 20b of the present embodiment has a three-layer structure in which three joint portions 27 are arranged in the vertical direction. Such a circulating pipe 20b causes the heat storage unit 21 to store heat energy more effectively.

  FIG. 4 shows a detailed embodiment of the heat storage means 16. As shown in FIG. 4, it is desirable that the horizontal pipes 28 of the joint portion 27 have an equal pitch P1 in the horizontal direction and the vertical direction. Thereby, heat energy is more efficiently stored in the heat storage unit 21. The pitch P1 is calculated from, for example, the thermal conductivity of the heat storage unit 21, the inner diameter d of the pipe unit 20, and the heat storage time.

  In order to exhibit the above-described operation more effectively, it is desirable that the rising pitch P2 of the connecting pipe 24 of the supply pipe 20a and the rising pitch P2 of the connecting pipe 26 of the discharge pipe 20c are the same as the pitch P1 of the horizontal pipe 28. .

  As shown in FIG. 2, the heat collecting means 15 includes a double sash 30 attached to the opening 8.

  The double sash 30 includes an outer sash 31 disposed on the outdoor side So of the opening 8, an inner sash 32 disposed on the indoor Si side of the opening 8, and a sash between the outer sash 31 and the inner sash 32. And a space 33.

  FIG. 5 is a perspective view conceptually showing the double sash 30. FIG. 6 is a cross-sectional view of the double sash 30. As shown in FIGS. 5 and 6, the outer sash 31 and the inner sash 32 include a pair of outer sash portions 31a and 31b and a pair of inner sash portions 32a and 32b having a size approximately half of the width of the sash. It is configured as a sliding window. These sash portions 31 a, 31 b, 32 a, and 32 b are held by a sash frame 34 that is fixed to the opening 8.

  The sash frame 34 includes an upper frame 34a disposed on the upper edge of the opening 8, a lower frame 34b disposed on the lower edge, and a pair of left and right side frames 34c and 34c that connect the upper frame 34a and the lower frame 34b. Is included.

  The upper frame 34 a and the lower frame 34 b are provided with a pair of outer rail portions 35 a and 35 b that protrude toward the sash space 33 and extend continuously in the sash width direction on the outdoor So side. Further, the upper frame 34a and the lower frame 34b are respectively provided with a pair of inner rail portions 36a and 36b that protrude toward the sash space 33 and extend continuously in the sash width direction on the indoor Si side.

  The outer rail portions 35a and 35b and the inner rail portions 36a and 36b hold the upper and lower ends of the outer sash portions 31a and 31b and the inner sash portions 32a and 32b, respectively, and are slidable in the sash width direction. Yes.

  Such a double sash 30 can form an air layer in the sash space 33. The air layer of the sash space 33 is warmed by solar radiation on a sunny day with relatively strong sunlight, for example. For this reason, warm air Aw having thermal energy is formed in the sash space 33.

  In the double sash 30, it is desirable that the solar radiation penetration rate of the glass of the outer sash 31 is larger than the solar radiation penetration rate of the glass of the inner sash 32. Thereby, much solar radiation is taken in in the sash space 33, and the solar radiation in the sash space 33 is suppressed from entering the room L side. For this reason, the air in the sash space 33 is warmed efficiently. Further, by providing a blind in the sash space 33, the air can be warmed more efficiently.

  The double sash 30 is preferably provided in the direction from southeast to southwest. Thereby, the natural energy by the sun can be taken in effectively.

  The opening 8 in which the double sash 30 is provided has an opening area of preferably 10 to 20% with respect to the total floor area of the building B. When the opening area is less than 10% of the total floor area of the building B, there is a possibility that natural energy cannot be taken in effectively. When the opening area exceeds 20% of the total floor area of the building B, the heat insulating property of the building B may be deteriorated.

  The sash space 33 is provided with a supply unit 38 to which the air in the underfloor space 4 is supplied. The supply unit 38 of the present embodiment is a flow path that connects the sash space 33 and the underfloor space 4.

  In the present embodiment, the supply unit 38 communicates with the sash space 33 via a supply port 39 provided on the other side frame 34c side of the lower frame 34b.

  As shown in FIG. 2, the first flow path 17 supplies the heat storage means 16 with warm air Aw that has been warmed by solar radiation in the sash space 33. One end of the first flow path 17 communicates with the sash space 33 in this embodiment.

  The first flow path 17 includes a derivation unit 40 and first switching means 45.

  As shown in FIG. 5, in the present embodiment, the lead-out portion 40 includes a lead-out port 41 provided in one side frame 34 c, a frame body 42 that extends vertically along the one side frame 34 c, and a frame body 42. And a first switching means 45 (shown in FIG. 7).

  The lead-out port 41 is provided in communication with the sash space 33 and the frame body 42 at the upper part of the side frame 34 c between the outer sash 31 and the inner sash 32. As a result, the underfloor air Ai supplied from the supply port 39 circulates in the sash space 33 greatly, and thus effectively absorbs heat energy from solar radiation.

  The inside of the frame body 42 is formed in a hollow shape. The frame body 42 of the present embodiment is provided on the outer side of one side frame 34c of the sash frame 34, for example. A communication port 44 to which the guide portion 43 is connected is provided at the lower end of the frame body 42.

  As shown in FIG. 7, the guide portion 43 is provided with a first air blowing portion 46 that blows warm air Aw in the sash space 33 (shown in FIG. 5) to the pipe portion 20. The 1st ventilation part 46 makes the inside of the sash space 33 a negative pressure, and supplies warm air Aw to the pipe part 20 effectively.

  The first switching means 45 can connect either the warm air Aw from the heat collecting means 15 or the underfloor air Ai from the underfloor space 4 to the heat storage means 16. Thus, the warm air Aw in the sash space 33 can be supplied from the frame body 42 and the guide portion 43 to the heat storage means 16 via the first switching means 45.

  In the present embodiment, the first switching unit 45 includes a first branch pipe 47, a first valve 48, and a second valve 49.

  The first branch pipe 47 of the present embodiment includes a main part 47 a to which the main part 23 a of the distribution pipe 23 is connected, a first branch part 47 b that communicates with the guide part 43, and a second branch part 47 c that communicates with the underfloor space 4. Consists of.

  In the present embodiment, the first valve 48 is connected to the first branch portion 47b. The first valve 48 blocks the air flow with the guide portion 43.

  In the present embodiment, the second valve 49 is connected to the second branch portion 47c. The second valve 49 blocks air flow with the underfloor space 4.

  The second flow path 18 includes second switching means 50 and a heat radiating portion 55.

  The second switching means 50 can connect the air from the heat storage means 16 to the living room L or the underfloor space 4.

  In the present embodiment, the second switching unit 50 includes a second branch pipe 51, a third valve 52, and a fourth valve 53.

  The second branch pipe 51 of the present embodiment includes a main part 51a to which the main part 25a of the collecting pipe 25 is connected, a first branch part 51b that communicates with the heat dissipation part 55, and a second branch part 51c that communicates with the underfloor space 4. Consists of.

  In the present embodiment, the third valve 52 is connected to the first branch portion 51b. The third valve 52 blocks the flow of air to the heat radiating unit 55.

  In the present embodiment, the fourth valve 53 is connected to the second branch portion 51c. The fourth valve 53 blocks the flow of air to the underfloor space 4. The first valve 48 to the fourth valve 53 may be dampers.

  In the present embodiment, the other end of the heat dissipating part 55 is opened upward, below the outlet 14 (shown in FIG. 2). One end of the heat radiating portion 55 is connected to the third valve 52 in the present embodiment.

  The heat radiating part 55 is provided with a second air blowing part 57 that sends the air of the heat storage means 16 to the living room L. The 2nd ventilation part 57 makes the inside of the pipe part 20 a negative pressure, and supplies the air Aw warmed by the heat storage part 21 to the living room L through the extraction port 14 and the air flow path 9a.

  A control system for controlling the temperature of a room using the building B as described above will be described. As shown in FIG. 8, the control system has a heat storage mode, a stop mode, and a temperature raising mode.

  The heat storage mode is used, for example, in the daytime on a sunny day with relatively strong sunlight. Specifically, this is a case where the sash space exceeds a predetermined temperature α1.

  As shown in FIG. 9, in the heat storage mode, the air from the heat collection means 15 can be supplied to the heat storage means 16 by switching the first switching means 45. By switching the second switching means 50, the air from the heat storage means 16 can be supplied to the underfloor space 4.

  In the present embodiment, the first valve 48 and the fourth valve 53 are opened, and the second valve 49 and the third valve 52 are closed. While the 1st ventilation part 46 is drive | operated, the 2nd ventilation part 57 is stopped.

  Thereby, the warm air Aw in the sash space 33 is guided from the derivation unit 40 to the heat storage means 16. Accordingly, the heat storage means 16 exchanges heat with the warm air Aw and efficiently stores heat.

  Further, the air Ae heat-exchanged by the heat storage means 16 is exhausted from the second branch part 51 c of the second switching means 50 to the underfloor space 4. Thus, since the warm air Aw is not supplied to the living room L, in the highly insulated building B, the temperature rise of the living room L that tends to occur on a sunny day can be prevented. Moreover, the exhausted air Ae is prepared for supply of the underfloor air Ai to the living room L at night, for example. In addition, since the underfloor space 4 is insulated from the outdoor So by the heat insulating material 12, the air Ae warms the underfloor space 4.

  The stop mode is used, for example, in the daytime when sunlight is weak. As shown in FIG. 8, specifically, the sash space is at a temperature α1 or lower and the living room L exceeds a predetermined temperature α2.

  When the temperature in the sash space 33 is α1 or less, the heat energy is small, and there is a possibility that heat is not effectively stored in the heat storage unit 21. Moreover, since the temperature of the living room L exceeds α2, it is not necessary to guide the thermal energy stored in the heat storage means 16 to the living room L.

  In the stop mode, the first valve 48 to the fourth valve 53 are closed. The 1st ventilation part 46 and the 2nd ventilation part 57 are stopped.

  The temperature raising mode is used, for example, on a cloudy day with little sunlight or at night in winter. Specifically, the inside of the sash space 33 is a temperature α1 or lower and the living room L is a temperature α2 or lower.

  As shown in FIG. 10, in the temperature raising mode, the first valve 48 and the fourth valve 53 are closed, and the second valve 49 and the third valve 52 are opened. While the 1st ventilation part 46 is stopped, the 2nd ventilation part 57 is drive | operated.

  As a result, the underfloor air Ai is heat-exchanged by the heat storage means 16 via the second branch portion 47 c of the first switching means 45. The air Aw warmed by the heat storage means 16 is supplied to the living room L via the first branch portion 51b, the heat radiating portion 55, and the extraction port 14 of the second switching means 50.

  Therefore, since the building B of this embodiment can warm the living room L with the underfloor air Ai heated by the heat storage means 16, it is comfortable to use natural energy without using air conditioning equipment such as an air conditioner. An indoor temperature environment can be realized.

  In order to effectively exhibit such an action, it is desirable that the temperature α1 in the sash space 33 is switched to each mode, for example, at 25 ° C. or higher. Particularly preferably, the temperature α1 is 25 ° C. Similarly, the temperature α2 of the living room L is preferably switched to each mode at 16 to 20 ° C., for example. Particularly preferably, the temperature α2 is 18 ° C.

  Note that switching between the heat storage mode, the stop mode, and the temperature raising mode is preferably automatically controlled by a computer or the like by automatically measuring the temperature α1 in the sash space 33 and the temperature α2 of the living room L, for example. In addition, a resident may operate switching of each mode.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to embodiment of illustration, It can deform | transform and implement in a various aspect.

2 Foundation 3 Floor 4 Underfloor space 10 Concrete floor 10a Top surface of soil concrete 15 Heat collecting means 16 Heat storage means 17 First flow path B Building G Ground

Claims (8)

A building having an underfloor space surrounded by a foundation and a floor, and earthen concrete laid on the ground of the underfloor space,
A heat collecting means for collecting heat energy by solar radiation, a heat storing means for storing heat energy, and a first flow path for supplying the heat energy of the heat collecting means to the heat storing means,
The heat storage means is disposed in the underfloor space, and at least a part of the heat storage means is located below the upper surface of the soil concrete ,
The heat storage means includes a pipe part that guides air having thermal energy from the first flow path, and a heat storage part that stores thermal energy via the pipe part,
The heat storage part is a concrete material that covers the pipe part,
The concrete of the heat storage part is made of the same material as the soil concrete,
The building characterized in that the soil concrete and the heat storage part are integrally formed . The heat storage part of the heat storage means has an embedded part embedded below the upper surface of the ground,
The building according to claim 1 , wherein at least a part of the buried portion is covered with a heat insulating material . The building has an opening;
The heat collecting means includes an outer sash disposed on the outdoor side of the opening, an inner sash disposed on the indoor side of the opening, and a sash space between the outer sash and the inner sash. Including double sashes,
The sash space is provided with a supply unit for supplying air in the underfloor space,
The building according to claim 1 or 2, wherein the first flow path supplies warm air heated by solar radiation in the sash space to the heat storage means. The building according to claim 3, wherein a solar radiation penetration rate of the glass of the outer sash is larger than a solar radiation penetration rate of the glass of the inner sash. The outer sash and the inner sash are held by a sash frame fixed to the opening,
The sash frame includes an upper frame disposed on an upper edge of the opening, a lower frame disposed on a lower edge, and a pair of left and right side frames that connect the upper frame and the lower frame,
One end of the first flow path communicates with the sash space via a lead-out port provided in an upper portion of the one side frame,
5. The building according to claim 3, wherein one end of the supply unit communicates with the sash space through a supply port provided on the other side frame side of the lower frame. The building according to any one of claims 1 to 5, further comprising a second flow path for supplying thermal energy stored in the heat storage means to a living room in the building. The first flow path has a first switching means between the heat collecting means and the heat storage means,
The first switching means can communicate either the air from the heat collecting means or the air from the underfloor space to the heat storage means,
The second flow path has a second switching means between the heat storage means and the living room,
The building according to claim 6, wherein the second switching unit is capable of communicating air from the heat storage unit to the living room or the underfloor space. Underfloor space surrounded by foundation and floor, heat collecting means for collecting heat energy by solar radiation, heat storage means for storing heat energy, first flow path for supplying heat energy of the heat collection means to the heat storage means, and the heat storage A control system for controlling the temperature of the living room using a building having a second flow path for supplying thermal energy stored in the means to the living room in the building,
The foundation is provided with a heat insulating material to block heat from outside air,
The underfloor space has an intake for taking in outdoor air,
The heat collecting means includes an outer sash disposed on the outdoor side of the opening, an inner sash disposed on the indoor side of the opening, and a sash space between the outer sash and the inner sash. Including double sashes,
The first flow path has a first switching means between the heat collecting means and the heat storage means,
The first switching means can communicate either the air from the heat collecting means or the air from the underfloor space to the heat storage means,
The second flow path has a second switching means between the heat storage means and the living room,
The second switching means can communicate air from the heat storage means to the living room or the underfloor space,
In the heat storage mode in which the sash space exceeds a predetermined temperature α1, the air from the heat collecting means is communicated with the heat storage means by switching the first switching means, and the second switching means By switching, the air from the heat storage means communicates with the underfloor space,
In the temperature raising mode in which the inside of the sash space is equal to or lower than the temperature α1 and the living room is equal to or lower than a predetermined temperature α2, air from the underfloor space is converted into the heat storage means by switching the first switching means. The control system is characterized in that air from the heat storage means is communicated to the living room by switching the second switching means.

Images