JP2013023977A - Solar heat storage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple solar heat storage device for producing comfortable heating effects for a long time by efficiently storing heat from sunlight in a heat storage body and releasing heat from the heat storage body to the indoor side.SOLUTION: The solar heat storage device includes a heat storage body 11 for storing solar radiation heat, and an outside heat insulating member 13 and an inside heat insulating member 15 disposed on outdoor 4 and indoor 5 sides of the heat storage body, respectively, the heat insulating members 13, 15 being controlled to be opened/closed on the basis of a plurality of preset times, the temperature of the heat storage body, and a room temperature. It may include an air flow generating device 17 for delivering warmed air to a lower part on the indoor side. It also may consist of a laminate having a heat insulating member mounted on the reverse of the heat storage body and an opened/closed heat insulating member provided on the indoor side of the laminate so that the laminate and the opened/closed heat insulating member are controlled to be turned upside down and to be opened/closed, respectively, to actualize efficient heat storage and release. Furthermore, the device may be unitized to be installed on a southern window side for heating use in winter and to be installed on a northern window side for cooling use in summer.

Description

  The present invention relates to a solar heat storage device that accumulates solar heat and radiates it indoors to obtain a heating effect.

In recent years, there has been a demand for expanding the use of renewable energy from the viewpoints of measures against global warming and improving the energy self-sufficiency rate. In general houses, the construction of houses using renewable energy is being promoted, and a technique for heating the interior using sunlight, which is a natural energy, has been developed.
As a technique using such sunlight, for example, there is one disclosed in Patent Document 1 or Patent Document 2.

In Patent Document 1, a translucent plate provided in an opening of a building, a heat storage body arranged at a distance from the translucent plate, and a space between the translucent plate and the heat storage body, that is, a chamber than the heat storage body. A thrombe wall panel is described, comprising a shading device arranged on the outside.
The light-shielding device provided in the thrombe wall panel can be opened and closed, and can block the blocking of sunlight and the heat radiation to the outside depending on the season. For example, the light shielding device can be opened in the winter, the indoor heat can be stored by storing heat in the heat storage body, and the temperature rise in the room can be suppressed in the light shielding state in the summer. In addition, even after night from sunset to before sunrise, heat can be suppressed from indoor to outdoor by setting the light-shielding device in a light-shielded state.

Patent Document 2 discloses a transparent plate provided facing the outdoors, a solar heat collecting material disposed inside the transparent plate, and a transparent porous material provided between the transparent plate and the solar heat collecting material. There has been proposed a solar-heated heating outer wall structure in which a main part is composed of a heat insulating material and an inner wall plate that is provided on the indoor side of the solar thermal peripheral heat material and functions as a heat radiating plate.
According to this heating outer wall structure, sunlight passes through the transparent plate and the transparent porous heat insulating material and is collected by the heat collecting material. And the heat is transmitted indoors while preventing solar heat from being dissipated outdoors by the transparent porous heat insulating material. In addition, the collected solar heat is stored in the heat storage material so that indoor heating can be performed at night.

JP 2004-256992 A JP 2007-133204 A

However, the conventional techniques have the following problems.
In a conventional thrombe wall panel or solar heating heating outer wall structure, heat can be stored or collected by a heat storage body or a solar heat collector, but it is difficult to control the supply of heat to the indoor side. In other words, it corresponds to the case where the use of the stored heat is unnecessary indoors, the case where the use of heat indoors is unnecessary during the daytime when sunlight is irradiated, but the use of heat is required at night, etc. I can't. In addition, when the heat storage material or the like is cooled at night and falls below the room temperature, the indoor heating effect is hindered.

  The present invention has been made in view of the circumstances as described above, and an object thereof is solar heat storage capable of efficiently storing solar heat and supplying the stored heat into a room with a simple device. Is to provide a device.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a heat storage body that is disposed in an opening provided on an outer wall of a building and stores heat of incident sunlight, and heat stored in the heat storage body. A heat insulating member that suppresses radiation of the heat storage member, and at least the heat insulating member shields the indoor side of the heat storage body and stores heat in the heat storage body by sunlight and suppresses heat radiation to the indoor side, and A solar heat storage device characterized in that a heat insulating member shields the outdoor side of the heat storage body and radiates heat from the heat storage body to the indoor side and suppresses heat release to the outdoor side. I will provide a.

  In this solar heat storage device, when sunlight is strongly irradiated, heat can be efficiently stored by suppressing heat radiation to the indoor side, and heat is supplied to the indoor side only when heating is required indoors. can do. In other words, efficient heat storage is performed during the day, and the accumulated heat is supplied to the room when the temperature falls at night and the room temperature falls. In particular, heat can be efficiently stored in a room or the like where no user is present during the daytime, and heat can be effectively supplied at night when the user is in the room. In addition to the two states described above, the solar heat storage device is also in a state of suppressing heat dissipation on both the outdoor side and the indoor side, and in a state of performing both heat storage from the outdoor side and heat dissipation to the indoor side. It may be settable.

  The invention according to claim 2 is the solar heat storage device according to claim 1, wherein the heat insulating member is provided on the outdoor side of the heat storage body, and opens the state of covering the outdoor side of the heat storage body and the outdoor side. An outer heat insulating member that can be opened and closed in a state, and an inner side that is provided on the indoor side of the heat storage body and that can be opened and closed between a state of covering the indoor side of the heat storage body and a state of opening the indoor side And a heat insulating member.

  In this solar heat storage device, the heat insulating member that can be opened and closed is provided on each of the outdoor side and the indoor side of the heat storage body, the outer heat insulating member is opened, the inner heat insulating member is closed, and heat is stored, and The state where the outer heat insulating member is closed and the inner heat insulating member is opened to supply heat into the room can be easily switched. In addition, the heat accumulated in the heat storage body can be held for a long time by closing both the heat insulating members on the indoor side and the outdoor side. Therefore, the heat of sunlight can be efficiently used by controlling heat storage from sunlight, suppression of heat radiation from the heat storage body to the outside, heat radiation to the room, heat retention of the heat storage body, and the like.

Invention of Claim 3 has the temperature sensor which measures the temperature of the said thermal storage body in the solar heat storage apparatus of Claim 2, and the indoor temperature sensor which measures indoor temperature, The said outer side The heat insulating member is controlled to open and close based on a plurality of times set in advance as times for opening and closing the outer heat insulating member or the temperature detected by the temperature sensor, and the inner heat insulating member opens and closes the inner heat insulating member. Opening and closing is controlled based on a plurality of times set in advance as a time, a temperature detected by the temperature sensor or a temperature detected by the indoor temperature sensor, and opening and closing of the outer heat insulating member and opening and closing of the inner heat insulating member Shall be controlled independently.

  In this solar heat storage device, the opening and closing of the outer heat insulating member and the inner heat insulating member are independently controlled on a daily cycle. Moreover, by controlling based on the said time and using together the control based on the detection value of a temperature sensor and a room temperature sensor, solar heat can be utilized effectively according to the fluctuation | variation of a season or the weather.

  The invention according to claim 4 is the solar heat storage device according to claim 1, wherein the heat insulating member is laminated integrally with the heat storage body so as to cover one side of the heat storage body, and stores heat by sunlight. When the heat insulation member is on the indoor side of the heat storage body, and when heat is radiated indoors, the front and back of the laminate of the heat storage body and the heat insulation member are reversed so that the heat insulation member is on the outdoor side of the heat storage body And can be installed.

  In this solar heat storage device, since the heat insulating members are laminated so as to cover one side of the heat storage body, it is possible to switch between the heat storage state and the state of heat radiation to the room by inverting the front and back. Moreover, the heat insulation member is laminated | stacked integrally with the thermal storage body, and a heat insulation member has a high heat insulation effect.

  The invention according to claim 5 is the solar heat storage device according to claim 4, further comprising an opening and closing heat insulating member that can be opened and closed on the indoor side of the laminate.

  In this solar heat storage device, since the opening / closing heat insulating member that can be opened and closed is provided on the indoor side of the laminate, the open / close heat insulating member even when the laminate is installed so that the heat storage body is on the indoor side By closing, the heat radiation to the room can be restricted and the accumulated heat can be maintained. That is, when heating is not required in the room, heat dissipation to both the outdoor side and the indoor side can be suppressed, and heat can be released to the room when heating is required. Therefore, it is possible to obtain a heating effect for a long time at night.

  Invention of Claim 6 has the temperature sensor which measures the temperature of the said thermal storage body in the solar thermal storage apparatus of Claim 5, and the indoor temperature sensor which measures indoor temperature, The said thermal storage body Based on a plurality of times set in advance as times for reversing or temperature detected by the temperature sensor, the heat insulating member is supported on the indoor side of the heat storage body, or the heat insulating member The reversing operation of whether to support the laminate so as to be outside the heat storage body is controlled, and when the laminate is supported so that the heat insulating member is outside the heat storage body, Based on the temperature detected by the temperature sensor or the indoor temperature sensor, the operation of opening and closing the open / close heat insulating member is controlled.

  In this solar heat storage device, the reversal operation of the laminate is controlled in a daily cycle based on a plurality of predetermined times. In addition, the control based on the preset time and the control by the detection value by the temperature sensor and the indoor temperature sensor can be used to cope with the change of seasons and weather, and the solar heat is effectively used. be able to.

  The invention according to claim 7 is the solar heat storage device according to any one of claims 1 to 3, or claim 5 or claim 6, wherein the heat storage body and the heat insulation on the indoor side of the heat storage body It is assumed that an air flow generator is provided between the members and takes in indoor air from above the heat storage body and sends out air from the lower side of the heat insulating member into the room.

  In this solar heat storage device, the air taken in from the room can be warmed by the heat storage body and sent out to a low position in the room. Therefore, it is possible to efficiently warm the feet and to suppress the retention of warm air near the ceiling.

  The invention according to claim 8 is the solar heat storage device according to any one of claims 1 to 7, wherein the heat storage body and at least a part of the heat insulating member are accommodated in the frame body, together with the frame body It is a movable heat storage unit, and the heat storage unit is either the south side of the building where heat from sunlight can be accumulated, or the north side where heat can be radiated from the room or heat can be accumulated. It shall be possible to install it.

  Since this solar heating device is a unit that can be easily moved, it can be installed at a necessary place when necessary. In other words, it can be installed on the south side in winter to capture solar radiation and store heat, and this stored heat can be used as heating. By removing it at the time when neither heating nor cooling is necessary in spring or autumn, you can enjoy daylighting and view through the opening where this solar heat storage device was installed. In summer, it is installed on the north side, and the indoor heat can be absorbed by the heat accumulator to lower the room temperature.

  The invention according to claim 9 is the solar heat storage device according to claim 8, wherein the heat storage unit is installed on the north side of the building in the summer, and the heat storage body is on the indoor side at a predetermined time in the morning. It is assumed that the heat storage body is opened to the outdoor side at a predetermined time in the afternoon, and the outdoor surface of the heat storage body is ventilated by outside air.

  This solar heat storage device is used on the north side of the building in the summer, and opens the heat storage body to the outdoor side at night to radiate heat from the heat storage body to the outside and dissipates heat by ventilation to the surface of the heat storage body. Thereby, the temperature of a thermal storage body can be reduced. And the heat storage body which became low temperature in the daytime can be opened to the indoor side, and the cooling of the room by the accumulated cold or the assistance of the cooling effect by an air conditioner or the like can be performed.

  The invention according to claim 10 is the solar heat storage device according to any one of claims 1 to 9, wherein the heat storage body includes a latent heat storage material having a melting point in a range of 22 ° C to 32 ° C. Shall be.

  In this solar heat storage device, a large amount of heat can be accumulated as latent heat in the range of 22 ° C to 32 ° C. Therefore, when heat is radiated from the stored heat storage body, it can be maintained in the above temperature range for a long time, so that a leveled comfortable room temperature can be maintained for a long time.

  As described above, in the solar heat storage device according to the present invention, efficient heat storage and indoor heat dissipation can be performed with a simple device.

It is a schematic perspective view which shows the front view which shows the building provided with the solar heat storage apparatus which is one Embodiment of this invention, and the room | chamber interior where this solar heat storage apparatus is installed. It is a schematic sectional drawing which shows the state which accumulates heat in the thermal storage body of the solar thermal storage apparatus which is one Embodiment of this invention. It is a schematic sectional drawing which shows the state which thermally radiates in the room | chamber interior of the solar thermal energy storage apparatus shown in FIG. It is a schematic sectional drawing which shows the state which thermally radiates indoors using the airflow generator of the solar heat storage apparatus shown in FIG. It is a schematic sectional drawing which shows the state which installed the solar heat storage apparatus shown in FIG. 2 in the south side or the north side of a building. It is the schematic which shows an example of the opening-and-closing control of the outer side heat insulation member and the inner side heat insulation member with which the solar heat storage apparatus shown in FIG. 2 was equipped. It is a schematic sectional drawing which shows the state which stores the heat of the solar thermal energy storage apparatus which is other embodiment of this invention. It is a schematic sectional drawing which shows the state which thermally radiates indoors using the airflow generator of the solar heat storage apparatus shown in FIG. It is a schematic perspective view which shows operation | movement when the laminated body with which the solar thermal energy storage apparatus shown in FIG. 7 was reversed. It is a schematic sectional drawing which shows operation | movement when the laminated body with which the solar thermal energy storage apparatus shown in FIG. 7 was reversed. It is the schematic which shows an example of the inversion control of the laminated body in the solar heat storage apparatus shown in FIG. 7, and the opening / closing control of an opening-and-closing heat insulation member. It is the schematic perspective view and schematic sectional drawing which show the other example of the inversion apparatus of a laminated body.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1: is a front view which shows the building provided with the solar heat storage apparatus which is one Embodiment of this invention, and a schematic perspective view which shows the room | chamber interior where this solar heat storage apparatus was installed. FIG.2, FIG3 and FIG.4 is a schematic sectional side view of the solar thermal energy storage apparatus used with this building.
As shown in FIG. 1A, the building 1 has a two-story structure, and upper and lower windows are provided on the south side of the second floor, which is the upper floor. As shown in FIG. 1 (b), the upper and lower continuous windows are formed on the lower window 2 formed from a position substantially the same as the floor surface to a height of about 90 cm, and on the lower window 2. It is comprised with the upper window 3, and the glass which permeate | transmits sunlight is inserted in each.
The lower window 2 is a fixed window that cannot be opened and closed, and is fitted in a state in which two glass plates 2a are overlapped with a gap. The solar heat storage device 10 is installed facing the indoor side of the lower window 2 so that the heat of sunlight incident from the lower window 2 can be accumulated and the room can be warmed by this heat.
The upper window 3 is a window that can be opened and closed, and allows viewing, lighting, ventilation, and the like through this window.
The glass used for the lower window 2 is desirably a heat insulating glass that has a high heat insulating effect but does not greatly reduce the radiant heat from the sun. Moreover, although the thing which suppresses permeation | transmission of an ultraviolet-ray or infrared rays etc. can be used for the upper window 3, it is desirable to set it as the heat insulation glass which does not discharge | release indoor heat outdoors.

As shown in FIGS. 2, 3, and 4, the solar heat storage device 10 includes a heat storage body 11 that accumulates heat supplied by the incidence of sunlight, and heat accumulated in the heat storage body 11. An outer heat insulating member 13 that suppresses radiation to the indoor side 5, an inner heat insulating member 15 that suppresses heat radiation to the indoor side 5, an air flow generator 17 that sends air taken from the room to the lower part of the room, and the above The heat storage body 11, the inner heat insulating member 15, and the frame body 19 that supports the air flow generator 17 constitute a main part.
In addition, this solar heat storage device 10 makes the said frame body 19 support the heat storage body 11, the inner side heat insulation member 15, and the airflow generator 17 as the heat storage unit 20, and the said outer side heat insulation member 13 is supported by the window frame. It is said. The heat storage unit 20 can be moved or removed according to the time when heating is required, the time when cooling is required, or the time when neither heating nor cooling is required.

The said heat storage body 11 becomes a rectangular panel shape arrange | positioned so that the glass of the lower window 2 may be opposed, for example, using the thing in which the several container which accommodated the latent heat storage material was stored in the flat box. Can do. As the latent heat storage material, sodium sulfate hydrate, sodium acetate hydrate, or the like can be used. In this embodiment, sodium sulfate decahydrate having a melting point in the range of 22 ° C. to 32 ° C. is used. Therefore, the heat storage body 11 can maintain a temperature in the range of about 22 ° C. to 32 ° C. for a long time and can radiate heat to the indoor side 5 for a long time. Thereby, the room temperature can be leveled and a comfortable room temperature can be maintained.
Moreover, the temperature sensor 12 is provided in the approximate center of the heat storage body 11, the temperature of the heat storage body 11 is measured regularly, and the heat storage amount is increasing or the heat storage amount is decreasing. It is possible to judge whether it is. For example, if the temperature of the heat storage body 11 continues to increase for a predetermined time, it is determined that the heat storage amount has increased, and if the decrease has continued for a predetermined time, it is determined that the heat release amount is large and the heat storage amount is decreasing. .
As the temperature sensor 12, an existing sensor that can detect the temperature of a thermocouple or the like can be used.

  It is desirable to provide the heat storage body 11 so as to face the glass of the lower window 2 in a wide range so that sunlight incident from the lower window 2 can be taken in effectively. In the present embodiment, the frame body 19 is provided along the window frame of the lower window 2 over the entire circumference, and the heat storage body 11 is provided in almost the entire region surrounded by the frame body.

  The outer heat insulating member 13 is made of a non-woven fabric such as polyester, and a plurality of horizontally folded folds that are alternately changed in direction are overlapped, and a plurality of chambers are arranged in the vertical and horizontal directions. It has a cross section. Therefore, due to a change in the bending angle at the fold line, it is possible to make the state where the heat storage body 11 is extended long vertically so as to cover the outdoor side of the heat storage body 11 and the state where the outdoor side of the heat storage body 11 is opened by folding. It has become. And in the state extended up and down, the air layer in which the convection was restricted is formed by arranging a large number of small chambers, and has a large heat insulating effect.

  The upper end portion of the outer heat insulating member 13 is supported by the upper support 21 attached to the window frame, and can be accommodated in the upper support 21 in a state where the lower end is pulled up and folded. The lower end portion of the outer heat insulating member 13 is detachably held by a lower holding body 22 fixed to a window frame or a floor. Guide members 23 are provided on both sides between the upper support 21 and the lower holding body 22 and supported by the side of the window frame. The guide member 23 regulates the displacement of the side edge when the outer heat insulating member 13 is stretched so as to cover the outdoor side of the heat storage body 11, and guides the lower end when opening and closing the outer heat insulating member 13. Smooth movement. Therefore, as shown in FIG. 3, the outer heat insulating member 13 is stretched in the vertical direction to shield the outdoor side of the heat storage body 11, and as shown in FIG. 2, the lower end of the outer heat insulating member 13 is pulled upward. It can be set by switching to a state where it is folded and accommodated in the upper support 21. Thereby, in the state where the outdoor side of the heat storage body 11 is shielded, heat stored in the heat storage body 11 is suppressed from being released to the outdoor side 4, and in the state where the outer heat insulating member 13 is folded and accommodated, The outdoor side of 13 is open | released, sunlight incidence | injection is accept | permitted and it can store in the thermal storage body 11. FIG.

The inner heat insulating member 15 is formed by bending a non-woven fabric in the same manner as the outer heat insulating member 13 and has a plurality of small chambers. The upper portion is supported by the upper support 24 attached to the frame body 19. . The lower end portion is detachably held by the lower holding body 25 supported by the frame body 19. Then, as shown in FIG. 3, the lower end portion of the inner heat insulating member 15 is pulled upward to open the indoor side of the heat storage body, and the heat is dissipated from the heat storage body 11 to the room 5, and The lower end portion of the heat insulating member 15 can be held by the lower holding body 25 and switched to a state in which heat dissipation from the heat storage body 11 to the room 5 is suppressed. Therefore, the heat release from the heat storage body 11 to the room 5 can be adjusted by opening and closing the inner heat insulating member 15. For example, when the stored heat is used as heating, it is opened as shown in FIG. 3 and the heat storage is used as heating. When it is not necessary to do so, it can be shielded as shown in FIG.
The inner heat insulating member 15 holds the lower end portion between the state accommodated in the upper support 24 and the state where the lower end portion is held by the lower holding body 25, and is partially opened or partially shielded. It is also possible to adjust the amount of heat released as a result.

The airflow generator 17 is a fan provided at the upper part of the frame body 19. The lower holding body 25 that holds the lower end portion of the inner heat insulating member 15 is supported above the bottom frame 19b of the frame body installed on the floor surface 6, and the bottom frame 19b of the frame body and the lower portion Between the holding body 25, it is the opening 16 which blows off the airflow by the said airflow generator 17. FIG. The opening 16 is provided with a shutter 18 that can be opened and closed to guide the formed air flow.
The fan 17 takes in indoor air from above the frame body 19 and sends it to a position along the surface of the heat storage body 11 as indicated by an arrow in FIG. Then, the warmed air is sent out from the opening 16 below the inner heat insulating member 15 to the room 5. The shutter 18 is a plate-like member, and is supported by the frame body 19 via a horizontal support shaft 18a provided substantially at the center in the vertical direction. And it can rotate around an axis line and can switch opening and closing of the opening 16. Thereby, the fan 17 is driven and the air taken in the frame 19 can be warmed by the heat accumulator 11, and the warmed air can be sent out from the opening 16 to a low position in the room 5. Therefore, the feet of people in the room are warmed and the warmed air is convected from a low position in the room to reduce the discomfort that the vicinity of the ceiling is warmed but the feet are cold.
In addition, when using the airflow generator 17 as mentioned above, as shown in FIG. 4, it is good to make it the state which shielded the inner side heat insulation member 15. As shown in FIG.
Further, in the present embodiment, the shutter 18 that can be opened and closed is provided in the opening 16, but a blind blade may be attached in parallel to open and close the blade.

The frame body 19 includes an upper frame 19a, a bottom frame 19b, and side frames 19c (not shown in FIGS. 2, 3 and 4), and supports the heat storage body 11, the inner heat insulating member 15, and the airflow generator 17. The heat storage unit 20 is configured. And it can be installed on the floor 6 in the vicinity of the lower window 2.
The upper frame 19 a is in contact with the side surface of the intermediate horizontal frame 3 a that supports the upper window 3, and can be fixed to the intermediate horizontal frame 3 a by the magnet 8. An indoor temperature sensor 14 for measuring the indoor temperature is provided on the indoor 5 side.
The bottom frame 19b can be installed in a stable state on the floor surface, and may be placed directly on the floor surface, or for easy movement of casters and the like. The member may be attached.

  The side frame 19c connects both ends of the top frame 19a and the bottom frame 19b and supports the guide member 26, the shutter 18 and the like for guiding the inner heat insulating member 15, and when the heat storage unit 20 is installed. In this case, the lower window 2 approaches or abuts on both sides.

The heat storage unit 20 in which the heat storage body 11, the inner heat insulating member 15, the airflow generator 17 and the like are supported by the frame body 19 can be easily removed or moved to another room.
FIG. 5 is a diagram showing a state in which the heat storage unit 20 is installed in the lower window 2 on the south side of the building, and a state in which the heat storage unit 20 is moved and installed near the window on the north side.
As shown in this figure, in order to improve the cooling effect of the air conditioner by removing the heat storage unit 20 that was installed in the lower window 2 on the south side and used as heating and moved to the window 9 on the north side in summer. Can be used. In addition, when the spring / autumn heating and cooling are not required, the view from the lower window 2 and the daylight can be obtained by removing the heat storage unit 20 and using the outer heat insulating member 13 as a curtain. The method of use in summer will be described later.
In the present embodiment, the lower window 2 is a fixed window that cannot be opened and closed. However, the lower window 2 may be a window that can be opened and closed and can be ventilated when the heat storage unit 20 is removed.

The opening and closing of the outer heat insulating member 13 and the inner heat insulating member 15 in the solar heat storage device 10 as described above can be performed manually by a user as appropriate, but includes a drive device and a control device (not shown). The drive can also be controlled based on the time, the temperature of the heat storage body, the indoor temperature, and the like.
An example of opening / closing control of the outer heat insulating member 13 and the inner heat insulating member 15 when such a solar heat storage device 10 is used for heating will be described with reference to FIG.
In this control, the outer heat insulating member 13 and the inner heat insulating member 15 are opened and closed at a plurality of preset times, for example, the first time, the second time, the third time, and the fourth time. In principle, the control based only on the above time corrects the inefficiency due to the weather or the like by the control based on the temperature of the heat storage body 11 or the temperature of the room 5.

The first time and the second time are respectively set to control the opening and shielding of the outer heat insulating member 13, and the third time and the fourth time are respectively inner heat insulating. This is set to control the shielding and opening of the member 15.
The first time can be set, for example, as a time when it is estimated that heat storage to the heat storage body 11 is started by irradiation of sunlight, and is set to 6:00 in the present embodiment. This set time can be changed according to the season since the sunrise time fluctuates.
The second time can be set as a time when it is estimated that the amount of heat released to the outdoor 4 side is larger than the amount of heat stored by solar radiation. In the present embodiment, the second time is set to 15:00.
The third time is a time at which it is estimated that the temperature of the heat storage body 11 has been lowered to the extent that heat can be radiated from the heat storage body 11 to the room 5 at night and the room 5 cannot be heated. 6 o'clock.
The fourth time can be set as a time when it is estimated that the room temperature is low and heating is required, and is set to 18:00 in the present embodiment.

On the other hand, the control by temperature is to shield the outer heat insulating member 13 when it is detected that the temperature of the heat storage body 11 is in a lowered state with the outer heat insulating member 13 being opened, for example. “When it is detected that the temperature of the heat storage body 11 is in a lowered state” means that the temperature of the heat storage body 11 is measured periodically, for example, every 5 minutes, by the temperature sensor 12 provided in the heat storage body 11. For example, when the temperature continues to decrease for 30 minutes, it can be determined that “the temperature is in a decreasing state”.
Further, when the temperature of the heat storage body 11 detected by the temperature sensor 12 is lowered to a preset first temperature, the open inner heat insulating member 15 is shielded and the indoor temperature sensor 14 detects the indoor temperature. It is possible to control the inner heat insulating member 15 that is shielded to be opened when the temperature 5 is lowered to the preset second temperature. The first temperature can be set, for example, as a temperature when heat is released from the heat storage body 11 to the room 5 at night, and the temperature of the heat storage body 11 decreases and the room cannot be heated. In this embodiment, it is set to 20 ° C. The second temperature can be set as a room temperature at which a person in the room feels cold, and is set to 20 ° C. in the present embodiment.

When set as described above, the outer heat insulating member 13 and the inner heat insulating member 15 are opened and closed as follows.
The outer heat insulating member 13 closed at night is opened at 6 o'clock (first time) to start storing heat and shielded at 15 o'clock (second time). However, even before 15 o'clock, when it is detected that the irradiation of sunlight has decreased due to changes in the weather and the temperature of the heat storage body 11 has fallen, the outer heat insulating member 13 is shielded to the outdoor 4 Reduce heat dissipation.

On the other hand, the inner heat insulating member 15 opened at night to heat the room is shielded at 6 o'clock (third time). However, when the outside temperature is low, the heat storage body 11 is cooled early, and even before 6 o'clock, it is detected that the temperature of the heat storage body 11 has become 20 ° C. (first temperature) or less. The heat insulating member 15 is shielded to prevent the indoor air from being cooled. For example, as shown in FIG. 6, when it is detected that the temperature of the heat storage body becomes 20 ° C. or less at 4 o'clock, the inner heat insulating member 15 is shielded to shield both the outer heat insulating member 13 and the inner heat insulating member 15. To do.
After the inner heat insulating member 15 is shielded, heat is stored in the heat storage body by irradiation of sunlight, and the inner heat insulating member 15 is opened at 18:00 (fourth time). However, if it is detected before 18 o'clock that the indoor temperature is 20 ° C. (second temperature) or less, the inner heat insulating member 15 is opened.

As described above, after the outer heat insulating member 13 is opened after sunrise and the inner heat insulating member 15 is shielded, the heat storage body 11 is irradiated with sunlight, and solar heat is accumulated in the heat storage body 11. At this time, since heat radiation to the room 5 is suppressed, heat is efficiently stored. Moreover, although the heat dissipation from the thermal storage body 11 to the room | chamber 5 is suppressed, sunlight is irradiated indoors from an upper window, and it can raise the temperature of a room | chamber interior.
When the heat storage body 11 is performing heat storage, when the irradiation of sunlight becomes weak and the temperature of the heat storage body 11 starts to decrease, the outer heat insulating member 13 is shielded, and the heat accumulated in the heat storage body 11 is outside the room. Release can be suppressed. When the indoor heating is required, the inner heat insulating member 15 is opened to release the heat accumulated in the heat storage body 11 into the room 5.
Even after the heat storage body 11 stores heat and the outer heat insulating member 13 is shielded, when the room temperature is kept high and heating is unnecessary, the inner heat insulating member 15 maintains the shielded state so that the inner and outer heat insulating members 15 are shielded. It becomes possible to shield both the heat insulating members 13 and 15 and to keep the heat storage amount of the heat storage body 11 long. Thereby, the heating effect can be obtained effectively until late at night.

  As described above, the opening and closing of the outer heat insulating member 13 and the inner heat insulating member 15 are controlled independently, whereby both heat storage to the heat storage body 11 and heat radiation to the indoor side are efficiently performed. In particular, since the solar heat storage device 10 can adjust the heat radiation to the indoor side, compared with a device that does not control the heat radiation on the indoor side, the solar heat storage device 10 can heat the room for a long time, and has a comfortable room temperature. Can be maintained for a long time.

  Note that, depending on the setting of the time and the setting of the temperature, a time period in which both the outer heat insulating member 13 and the inner heat insulating member 15 are opened occurs, and a state in which heat is supplied to the room as heat is generated simultaneously with heat storage. As described above, the heat storage and the heat radiation to the room may be performed at the same time. However, in the present embodiment, the upper window 3 is located above the position where the solar heat storage device 10 is installed, and enters from the upper window 3. The indoor temperature can be raised directly by solar heat. Therefore, it is desirable to shield the inner heat insulating member 15 as much as possible at the time of heat storage to improve heat storage efficiency.

On the other hand, when the heat storage unit 20 of the solar heat storage device 10 is installed in a window 9 on the north side of the building in the summer as shown in FIG. 11 is cooled by radiation of heat to the outside and heat radiation to the outside air. Then, the inner heat insulating member 15 is opened at a fifth time that is a predetermined time in the morning, for example, at 9:00, so that the heat storage body 11 is opened to the indoor side 5. Thereby, the warm heat in a room | chamber can be absorbed in the thermal storage body 11, and the cooling effect can be acquired.
The fifth time can be set, for example, as a time estimated to require cooling. Further, it is effective to provide a heat insulating member equivalent to the outer heat insulating member 13 on the outdoor 4 side of the heat storage body 11, that is, the north side window 9, and to shield the outdoor 4 side of the heat storage body 11 when the outside air temperature is high. Is.
On the other hand, the heat storage body 11 is opened to the outdoor 4 side at the sixth time which is a predetermined time in the afternoon, for example, 20:00, and the inner heat insulating member 15 is closed. Moreover, the window 9 facing the heat storage body 11 is opened and ventilated outside the heat storage body 11 to cool the heat storage body 11 by the outside air. In order to perform such ventilation, the north window 9 is preferably a window that can be opened and closed.
Note that the sixth time can be set as a time at which the outside air temperature is estimated to be lower than room temperature, for example.

Next, a second embodiment of the invention according to the present application will be described.
7 and 8 are schematic cross-sectional views showing a second embodiment of the solar heat storage device according to the present invention, FIG. 9 is a schematic perspective view showing an attachment state of the laminate provided in the solar heat storage device, FIG. These are schematic sectional drawing which shows the state which reverses the front and back of this laminated body.
As shown in FIGS. 7 and 8, the solar heat storage device 30 includes a heat storage body 31 that accumulates radiant heat of sunlight, a heat insulating member 33 that is laminated so as to cover one surface of the heat storage body 31, and a heat storage body. The opening / closing heat insulating member 35 provided on the indoor 5 side of the laminated body 40 in which the laminated body 31 and the heat insulating member 33 are overlapped, the reversing device 36 for inverting the front and back of the laminated body 40, and the indoor air along the heat storage body 31 An air flow generating device 37 that takes in the region and sends it to the lower part of the room, and these are supported by the frame 39. The frame 39 can be installed in the vicinity of the lower window 2 of the upper and lower windows in the same manner as in the first embodiment, and can be easily moved.
In addition, since it is the same as that of 1st Embodiment about the building in which this solar heat storage apparatus is used, and a vertical window, description is abbreviate | omitted.

As shown in FIG. 9, the frame 39 is formed in a rectangular shape with an upper frame 39a, a bottom frame 39b, and a side frame 39c, and supports the laminated body 40, the reversing device 36, and the open / close heat insulating member 35. It can be installed on the floor surface 6 in a stable state. Moreover, the outdoor 4 side of the laminated body 40 and the indoor 5 side of the open / close heat insulating member 35 are opened, and heat storage to the heat storage body 31 and heat dissipation from the heat storage body 31 to the room by sunlight are possible. The height and width are substantially the same as those of the lower window 2, and the lower windows 2 divided into a plurality are arranged.
The upper frame 39a is in contact with the intermediate horizontal frame 3a supporting the upper window 3, and can be fixed to the intermediate horizontal frame 3a by a magnet 38 provided on the contact surface. An indoor temperature sensor 34 for measuring the indoor temperature is provided on the indoor 5 side.

The heat storage body 31 is formed in a panel shape, and sodium sulfate decahydrate having a melting point in the range of 22 ° C. to 32 ° C. can be used as the heat storage material in the same manner as in the first embodiment.
The heat insulating member 33 only needs to be a layered body 40 laminated and integrated with the heat storage body 31. For example, a synthetic resin foam material can be used.

  The reversing device 36 includes two arms 36 that support the laminated body 40 of the heat storage body 31 and the heat insulating member 33 on the frame body 39 so that the laminated body 40 can be reversed, and the upper end portion 36b is a support protruding from the upper portion of the side frame 39c. The shaft is joined so as to be rotatable around a horizontal axis. And the lower end part 36a is joined to the approximate center of the both side edges of the laminated body 40 so as to be able to rotate around the horizontal axis of the laminated body. Therefore, the arm 36 supporting the stacked body 40 is rotated around the support shaft of the upper end portion 36b of the arm 36, and the stacked body 40 supported by the lower end 36a of the arm 36 can be rotated. With such a reversing device, as shown in FIG. 10, the laminate 40 rotates while being pulled out to the indoor side 5 as the arm 36 rotates, and can be reversed even if there is no large space on the outdoor side 4. It has become. On the other hand, when the laminated body 40 is reversed, the laminated body 40 greatly protrudes toward the indoor side 5, so that the open / close heat insulating member 35 disposed on the indoor side 5 needs to be opened.

The open / close heat insulating member 35 is formed by bending a non-woven fabric such as polyester like the heat insulating members 13 and 15 in the first embodiment, and has a heat insulating performance due to a large number of chambers partitioned by the non-woven fabric. Is. And when an upper end part is supported by the upper support body 41 and the indoor side of the heat storage body 31 is opened, it is folded and accommodated in the upper support body 41 as shown in FIG. When the indoor side of the heat storage body 31 is shielded, as shown in FIG. 7, the lower end portion of the opening / closing heat insulating member 35 is held by the lower holding body 42, and the side edge portion is a guide provided on the side frame of the frame body 39. It is supported by the member 43.
Such an open / close heat insulating member 35 can adjust the heat radiation to the indoor side 5 by opening and closing when the laminated body 40 is supported with the heat storage body 31 as the indoor side 5.

The air flow generator 37 is a fan 37 provided on a frame 39 above the laminated body 40. The fan 37 takes in indoor air and sends it between the heat storage body 31 and the open / close heat insulating member 35. And the air taken in with the heat | fever accumulate | stored in the thermal storage body 31 is warmed, and it sends out to the lower part of the room | chamber 5.
In this embodiment, the opening is not formed below the indoor heat insulating member as in the first embodiment. However, as shown in FIG. It is also possible to lift the air from the lower position of the room 5 and to send out the warmed air.

Inversion of the laminate 40 of the solar heat storage device 30 configured as described above and opening / closing of the open / close heat insulating member 35 may be performed manually by the user as appropriate, but with a drive device and a control device (not shown). The driving can be controlled based on the time, the temperature of the heat storage body, the temperature in the room, and the like.
An example of inversion of the laminated body 40 and opening / closing control of the opening / closing heat insulating member 35 in the case where the solar heat storage device 30 is used as heating will be described with reference to FIG.
In this control, the inversion of the laminate 40 and the opening / closing of the open / close heat insulating member 35 are performed at a plurality of preset times, for example, the first time or the second time, or the first temperature or the temperature of the heat storage body. This is performed based on the second temperature, which is the room temperature.

The first time and the second time are set to control the inversion of the stacked body 40, and the first temperature and the second temperature are the shielding of the open / close heat insulating member 35 or It is set to control the opening.
The first time and the second time can be set in the same manner as in the first embodiment, and a description thereof will be omitted. Also, the first temperature and the second temperature can be set in the same manner as in the first embodiment.

Based on the above settings, the inversion of the laminate 40 and the opening and closing of the open / close heat insulating member 35 can be performed as follows.
At night, the laminated body 40 that is supported so that the heat storage body 31 faces the indoor side and the heat insulating member 33 is on the outdoor side is reversed at 6 o'clock (first time). Heat storage from sunlight is started with 31 facing the outdoor side. Then, at the time of 15 o'clock (second time) or when the temperature of the heat storage body 31 has fallen, whichever is earlier, the laminate 40 is reversed again, and the heat storage body 31 is moved to the indoor side. Turn to. That is, the heat storage body 31 is stored toward the outdoor side during the time when heat can be effectively stored, and thereafter, the heat radiation to the outdoor side 4 is suppressed by directing the heat insulating member 33 toward the outdoor side.

On the other hand, when the heat storage body 31 of the laminated body 40 is directed to the outdoor side, the open / close heat insulating member 35 may be opened or shielded. Then, when the stored heat storage body 31 is inverted so as to face the indoor side, the indoor temperature is detected, and if it exceeds the second temperature, the open / close heat insulating member 35 is shielded. Open when the temperature falls below 2. When the laminated body 40 is reversed and the heat storage body 31 is directed to the indoor side, if the indoor temperature is equal to or lower than the second temperature, the open / close heat insulating member 35 is opened at this time. By controlling in this way, the room is heated using the heat stored in the heat storage body 31 effectively when the room temperature is low. After that, when the temperature of the heat storage body 31 is lower than the first temperature (20 ° C.), that is, when the heat storage body 31 reaches a temperature at which it cannot contribute to heating, the open / close heat insulating member 35 is shielded and the indoor air is blocked. Suppresses cooling.
Thus, by controlling the inversion of the laminated body 40 and the opening / closing of the open / close heat insulating member 35, both the heat storage to the heat storage body 31 and the heat radiation to the indoor side are efficiently performed.

  In addition, when the heat storage body 31 of the laminated body 40 is radiated toward the indoor side, the open / close heat insulating member 35 may be opened and housed in the upper support 41 as described above, but as shown in FIG. Alternatively, the lower end portion of the opening / closing heat insulating member 35 may be raised from the lower holding body 42 and stopped at a height at which a gap allowing ventilation is formed on the lower side. Then, the fan 37 is driven to take indoor air into a position along the heat accumulator 31, and the warmed air can be sent into the room from the lower side of the open / close heat insulating member 35 that is partially opened.

  On the other hand, the solar heat storage device 30 of the present embodiment is also supported by the frame body 39 in which the heat storage body 31 and the like can be moved, and is installed at the north side window in summer to use for assisting the cooling effect. You can also. Further, it may be used as a fixed device.

The laminate reversing device in the embodiment shown in FIGS. 7 and 8 is not limited to the mechanism described above, and other mechanisms may be employed.
FIG. 12 is a schematic perspective view and a schematic cross-sectional view showing another example of the reversing device.
As shown in FIG. 12A, this reversing device is provided with a support shaft 52 that protrudes horizontally on both sides of the upper portion of both side edges of the laminate 51, and the horizontal movement of the support shaft 52 is controlled by a frame. The groove 53 is constrained by a groove-shaped guide portion 53d provided on the side frame 53c of the 53, and the support shaft 52 is restricted so as to allow rotation around the axis and movement in the vertical direction. That is, the bearing 54 is attached to the support shaft 52 so that the support shaft 52 can rotate around the axis of the support shaft 52 together with the stacked body 40. And this bearing 54 can move to the up-down direction along the guide part 53d. Therefore, when the laminate 51 is inverted, as shown in FIG. 12B, the upper portion 51a of the laminate 51 is lowered along the guide portion 53d and rotated, and the lower portion 51b is pulled out to the indoor side 5. Then, the lower portion 51b is raised to reverse the top and bottom and to reverse the front and back.
In addition, this laminated body 51 also protrudes and rotates to the room 5 side, and the space | interval which arrange | positions a lower window and the laminated body 51 can be set small, and it can make it easy to irradiate sunlight to a thermal storage body. . In addition, an open / close heat insulating member (not shown) disposed on the indoor side of the laminate 51 is opened when the laminate 51 is inverted.

The present invention is not limited to the first embodiment or the second embodiment described above, and can be implemented as other forms within the scope of the present invention.
For example, in the above embodiment, the latent heat storage material is used as the heat storage material, but other materials having a large specific heat such as water can be used, and a black alumite layer or the like is provided on the surface of the heat storage body on which sunlight is incident. It may be formed to increase the solar absorption rate.
The outer heat insulating member 13, the inner heat insulating member 15, and the opening and closing heat insulating member 35 are formed by bending a nonwoven fabric such as polyester, but the material and form are not limited to this, and the heat insulating effect is high and can be opened and closed. Other heat insulating members that have become possible can be used. Moreover, although the opening and closing of the heat insulating member is performed by moving in the vertical direction in the above-described embodiment, other forms such as one that opens and closes left and right may be used.

  In the first embodiment and the second embodiment, the heat storage body, the heat insulating member and the like are supported by the movable frame bodies 19 and 39, but all of the heat storage body, the heat insulating member and the like are close to the window. It may be fixedly provided at the position to be. Further, in the first embodiment, the outer heat insulating member 13 is fixed at a position close to the window frame of the lower window 2, and the heat storage body 11 and the inner heat insulating member 15 are mounted on a movable frame body 19, The outer heat insulating member may also be mounted on the frame. On the other hand, in the second embodiment, the open / close heat insulating member 35 is provided on the indoor side of the laminate 40, but heat storage and heat dissipation to the room are controlled by reversing the laminate without using the open / close heat insulating member. May be.

  Control of opening and closing of the outer heat insulating material 13 and the inner heat insulating material 15 in the first embodiment, and control of inversion of the laminated body 40 and opening and closing of the opening and closing heat insulating member 35 in the second embodiment are limited to the above embodiments. Instead, other control methods can be employed. The set time, the set temperature of the heat storage body, the set temperature of the room temperature, and the like can be appropriately changed, and a control method based only on the time or a detected temperature may be adopted. Further, it can be controlled by other conditions or a combination of these conditions and time or temperature.

  Moreover, in the said embodiment, although the airflow generators 17 and 37 are used, you may not install an airflow generator. Moreover, although the said airflow generation apparatus was installed for every heat storage unit, it may be equipped with a part of heat storage unit installed side by side, and the indoor air taken in with the fan provided in one place may be provided. It may be sent to a plurality of heat storage units, warmed by a heat storage body provided in each heat storage unit, and sent out indoors.

1: Building, 2: Lower window, 3: Upper window, 4: Outdoor, 5: Indoor, 6: Floor, 7: Wall, 8: Magnet, 9: North window
10: Solar heat storage device, 11: Thermal storage body, 12: Temperature sensor, 13: Outer heat insulating member, 14: Indoor temperature sensor, 15: Inner heat insulating member, 16: Opening, 17: Air flow generator (fan), 18: Shutter, 19: frame, 20: heat storage unit,
21: Upper support for outer heat insulating member, 22: Lower holding member for outer heat insulating member, 23: Guide member for outer heat insulating member, 24: Upper support for inner heat insulating member, 25: Lower holder for inner heat insulating member, 26 : Guide member of the inner heat insulating member,
30: Solar thermal storage device, 31: Thermal storage body, 32: Temperature sensor, 33: Thermal insulation member, 34: Indoor temperature sensor, 35: Opening / closing thermal insulation member, 36: Arm (reversing device), 37: Air flow generator (fan) 38: Magnet, 39: Frame body, 40: Laminate body,
41: Upper support body of the open / close heat insulating member, 42: Lower holding body of the open / close heat insulating member, 43: Guide member of the open / close heat insulating member,
51: Laminated body 52: Support shaft 53: Frame body 54: Bearing

Claims (10)

A heat accumulator that is arranged in an opening provided on the outer wall of the building and stores the heat of incident sunlight;
A heat insulating member that suppresses radiation of heat accumulated in the heat storage body,
At least the heat insulating member shields the indoor side of the heat storage body and stores heat in the heat storage body by sunlight and suppresses heat radiation to the indoor side, and the heat insulating member shields the outdoor side of the heat storage body. The solar heat storage device can be switched between a state in which heat is radiated from the heat storage body to the room side and a state in which heat radiation to the outside of the room is suppressed. The heat insulating member is
An outer heat insulating member that is provided on the outdoor side of the heat storage body, and that can be opened and closed in a state of covering the outdoor side of the heat storage body and a state of opening the outdoor side;
2. An inner heat insulating member that is provided on the indoor side of the heat storage body and that can be opened and closed between a state of covering the indoor side of the heat storage body and a state of opening the indoor side. A solar heat storage device according to claim 1. A temperature sensor for measuring the temperature of the heat storage body;
An indoor temperature sensor for measuring the indoor temperature;
Opening and closing of the outer heat insulating member is controlled based on a plurality of times set in advance as times for opening and closing the outer heat insulating member or temperatures detected by the temperature sensor,
Opening and closing of the inner heat insulating member is controlled based on a plurality of times set in advance as times for opening and closing the inner heat insulating member, the temperature detected by the temperature sensor or the temperature detected by the indoor temperature sensor,
The solar heat storage device according to claim 2, wherein opening and closing of the outer heat insulating member and opening and closing of the inner heat insulating member are independently controlled. The heat insulating member is laminated integrally with the heat storage body so as to cover one side of the heat storage body,
When heat is stored by sunlight, the heat insulating member is on the indoor side of the heat storage body, and when heat is radiated indoors, the heat storage member and the heat insulating member are stacked so that the heat insulating member is on the outdoor side of the heat storage body. The solar heat storage device according to claim 1, wherein the solar heat storage device can be installed by inverting the front and back of the body.   The solar heat storage device according to claim 4, further comprising an openable / closable heat insulating member on an indoor side of the laminated body. A temperature sensor for measuring the temperature of the heat storage body;
An indoor temperature sensor for measuring the indoor temperature;
Based on a plurality of times set in advance as times for performing reversal of the heat storage body or temperatures detected by the temperature sensor, the heat insulating member supports the laminated body so as to be on the indoor side of the heat storage body, or The reversing operation of controlling the laminated body so that the heat insulating member is the outdoor side of the heat storage body is controlled,
When the laminated body is supported so that the heat insulating member is on the outdoor side of the heat storage body, the opening / closing heat insulating member is opened and closed based on the temperature detected by the temperature sensor or the indoor temperature sensor. Is controlled, The solar heat storage apparatus of Claim 5 characterized by the above-mentioned.   An air flow generator is provided between the heat storage body and a heat insulating member on the indoor side of the heat storage body to take in indoor air from above the heat storage body and send the air into the room from the lower side of the heat storage member. A solar heat storage device according to any one of claims 1 to 3, or claim 5 or claim 6. The heat storage body and at least a part of the heat insulating member are accommodated in a frame body, and the heat storage unit is movable with the frame body,
The heat storage unit can be installed on either the south side of the building where heat from sunlight can be accumulated and the north side where heat can be radiated from the room or cold can be accumulated. The solar heat storage device according to any one of claims 1 to 7. The heat storage unit is installed on the north side of the building in the summer,
The state in which the heat storage body is opened indoors at a predetermined time in the morning,
The heat storage body is in a state of being opened to the outdoor side at a predetermined time in the afternoon, and ventilation by outside air is performed on the outdoor side surface of the heat storage body. Solar heat storage device. The solar heat storage device according to any one of claims 1 to 9, wherein the heat storage body includes a latent heat storage material having a melting point in a range of 22 ° C to 32 ° C.

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