JP2016044910A - Louver device, hot water system, air conditioning system and sheath material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a heat shielding efficiency against sunlight at a windowsill of a building having glass windows.SOLUTION: A louver device related to one embodiment of the present is a louver device arranged at a windowsill of a building having glass windows and comprises a plurality of louver units arranged for shielding sunlight. Then, each of the louver units includes a shaft body constituted of a vacuum tube type heat collector for absorbing sunlight and collecting sunlight heat and blade members for shielding light that are mounted at an outdoor side rather than the shaft body and are constituted of Fresnel lens for collecting sunlight on the shaft body. The blade members of the plurality of louver units are spaced to enable a person to enjoy outdoor prospect from indoor.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a technique for a louver device, a hot water supply system, an air conditioning system, and an exterior material.

  In recent high-rise buildings, exterior glass-walled structures are frequently used for the purpose of reducing the load imposed on the structural members of columns and beams by reducing the weight of the exterior, thereby reducing the size of the structural members and reducing costs. ing.

  Conventionally, in this exterior glass-clad building, a double structure (double skin structure) in which glass walls are provided on the outer side and the inner side of the outer wall is employed. The air conditioning system controls the thermal environment of the window peripheral area (perimeter zone) by blocking solar heat with an intermediate layer formed between the outer and inner glass walls, flowing air to exhaust the heat generated in the intermediate section. A system is employed (for example, Patent Document 1).

JP 2002-256737 A

  In the double skin structure, high-performance glass for blocking solar heat is used for a glass wall (glass window), and air blown to an intermediate layer is exhausted outdoors using a fan. However, heat transfer by air is inefficient, and heat trapped in the air in the intermediate layer is re-emitted into the building, so that there is a problem in that the heat shielding efficiency of sunlight is poor.

  In one aspect, the present invention has been made in consideration of such a point, and an object of the present invention is to provide a technique for improving the heat shielding efficiency of sunlight on a window side of a building having a glass window.

  The present invention employs the following configuration in order to solve the above-described problems.

  That is, the louver apparatus which concerns on 1 side of this invention is a louver apparatus arrange | positioned at the window side of a building provided with a glass window, Comprising: It is provided with the several louver unit arranged in order to block sunlight. And each said louver unit is a shaft member composed of a vacuum tube type heat collector that absorbs and collects sunlight, and a light-shielding blade member attached to the outdoor side of the shaft member, A blade member made of a Fresnel lens for concentrating the sunlight on the shaft body, and the blade members of the plurality of louver units are separated from each other so that an outdoor view is possible from the indoor side. Arranged.

  According to the said structure, sunlight is condensed on the axial body of a louver apparatus with the blade | wing member comprised with the Fresnel lens. Sunlight condensed on the shaft is absorbed by the shaft and collected. The shaft that collects the heat of sunlight is composed of a vacuum tube. Therefore, it is difficult for the heat of the collected sunlight to be re-released from the shaft body into the building.

  Therefore, according to the said structure, since the re-release | release of the heat | fever of the collected sunlight into a building can be prevented, the heat-shielding efficiency of the sunlight in the window side of the building which has a glass window can be improved.

  However, since the Fresnel lens is configured to condense sunlight on the shaft, the scenery obtained through the Fresnel lens from the emission side rather than from the sunlight incidence side is unclear. Therefore, if a plurality of Fresnel lenses are arranged without gaps so as to collect sunlight on the shaft body, the outdoor view from the indoor side may be impaired. Therefore, in the above configuration, in order to ensure a view from the room, the blade members formed of the Fresnel lens are arranged so as to be separated from each other so that the view from the room to the outside is possible. Thereby, in the said structure, after ensuring the view from the room, the improvement of the thermal-insulation efficiency of sunlight is implement | achieved.

  As another form of the louver device according to the one aspect, the shaft bodies of the plurality of louver units may be arranged in a line along one direction. The blade members of each louver unit can be translated along the arrangement direction of the shafts so that the position where the sunlight is condensed can be adjusted according to the change in the incident direction of the sunlight. May be configured. According to the said structure, the louver apparatus which can respond to the change of a solar position is realizable with a simple structure.

  As another form of the louver device according to the one aspect, each of the louver units is a plurality of light guide plates that are rotatably attached to the outdoor side of the blade member, and the sun blade is attached to the blade member. You may further provide the some light-guide plate which each has the reflective surface which reflects light. In the said structure, the incident angle of sunlight with respect to a blade member can be prescribed | regulated by utilizing the light-guide plate which has a reflective surface which reflects sunlight toward the blade member. Therefore, according to the said structure, the louver apparatus which can respond to the change of a solar position can be comprised, without moving the blade | wing member comprised with a Fresnel lens.

  As another form of the louver device according to the one aspect, the plurality of louver units may be arranged at a predetermined interval in a direction perpendicular to the ground. And each said louver unit may be comprised so that the axial direction of a shaft body and a blade | wing member may face a horizontal direction with respect to the ground. According to this configuration, a horizontal louver device can be provided.

  As another form of the louver device according to the one aspect, the plurality of louver units may be arranged at a predetermined interval in the horizontal direction with respect to the ground. And each said louver unit may be comprised so that the axial direction of a shaft body and a blade | wing member may face a perpendicular direction with respect to the ground. According to this configuration, a vertical louver device can be provided.

  In addition, a hot water supply system according to one aspect of the present invention is heated by a louver device disposed on a window side of a building including a glass window, a heat transfer mechanism for transferring heat, and heat transferred by the heat transfer mechanism. And a hot water storage tank for storing the generated hot water. The louver device includes a plurality of louver units arranged to block sunlight. Each of the louver units includes a shaft body constituted by a vacuum tube type heat collector that absorbs and collects the sunlight, and a light shielding blade member that is attached to an outdoor side of the shaft body. And a blade member composed of a Fresnel lens that condenses the sunlight on the body. The blade members of the plurality of louver units are arranged apart from each other so that an outdoor view can be seen from the indoor side. And the said heat conveyance mechanism conveys the axial body collected by the axial body of each said louver unit. According to the said structure, the heat collected by the shaft of a louver apparatus can be utilized for hot water supply, improving the thermal-insulation efficiency of the sunlight in the window side of the building which has a glass window.

  In addition, an air conditioning system according to one aspect of the present invention uses a louver device disposed on a window side of a building including a glass window, a heat transfer mechanism for transferring heat, and heat transferred by the heat transfer mechanism. And an air conditioning mechanism that performs at least one of heating, cooling, and dehumidification. The louver device includes a plurality of louver units arranged to block sunlight. Each of the louver units includes a shaft body constituted by a vacuum tube type heat collector that absorbs and collects the sunlight, and a light shielding blade member that is attached to an outdoor side of the shaft body. And a blade member composed of a Fresnel lens that condenses the sunlight on the body. The blade members of the plurality of louver units are arranged apart from each other so that an outdoor view can be seen from the indoor side. And the said heat conveyance mechanism conveys the axial body collected by the axial body of each said louver unit. According to the said structure, the heat collected by the shaft of a louver apparatus can be utilized for an air conditioning, improving the thermal-insulation efficiency of the sunlight in the window side of the building which has a glass window.

  Moreover, the exterior material which concerns on 1 side of this invention is provided with the outer side glass material used as the exterior of a building, and the louver apparatus arrange | positioned inside the said building with respect to the said outer side glass material. The louver device includes a plurality of louver units arranged to block sunlight. Each of the louver units includes a shaft body constituted by a vacuum tube type heat collector that absorbs and collects the sunlight, and a light shielding blade member that is attached to an outdoor side of the shaft body. And a blade member composed of a Fresnel lens that condenses the sunlight on the body. The blade members of the plurality of louver units are arranged apart from each other so that the outdoor view can be seen from the indoor side. According to the said structure, the exterior material which can improve the heat-shielding efficiency of the sunlight in the window side of the building which has a glass window can be provided.

  Moreover, you may further provide the inner side glass material arrange | positioned facing the said outer side glass material as another form of the exterior material which concerns on the said one side. The louver device may be arranged in an internal space formed by the outer glass material and the inner glass material. According to the said structure, since the louver apparatus which collects the heat | fever of sunlight and the space inside a building can be interrupted | blocked, the thermal-insulation efficiency of the sunlight in the window side of a building can further be improved.

  ADVANTAGE OF THE INVENTION According to this invention, the thermal-insulation efficiency of the sunlight in the window side of the building which has a glass window can be improved.

FIG. 1 is a plan view illustrating a louver device according to an embodiment. FIG. 2 is a side view illustrating the louver device according to the embodiment. FIG. 3 illustrates a scene in which the blade member according to the embodiment condenses sunlight on the shaft body. FIG. 4 illustrates a scene in which the blade member according to the embodiment rotates. FIG. 5A illustrates the shaft body according to the embodiment. FIG. 5B illustrates a cross section taken along line XX of FIG. 5A. FIG. 6A illustrates a hot water supply system according to the embodiment. FIG. 6B illustrates the air conditioning system according to the embodiment. FIG. 6C illustrates the desiccant air conditioning system according to the embodiment. FIG. 7A illustrates the exterior material according to the embodiment. FIG. 7B illustrates an exterior material according to another example. FIG. 8 illustrates a louver device according to another example. FIG. 9 illustrates the relationship between a building and sunlight. FIG. 10 illustrates a shaft body according to another example. FIG. 11A illustrates the shape of a heat transfer fin according to another example. FIG. 11B illustrates the shape of the heat transfer fin according to another example. FIG. 12A illustrates a louver device according to another example. FIG. 12B illustrates a scene in which a louver device according to another example corresponds to a change in the sun position. FIG. 13A is a side view illustrating a louver device according to another example. FIG. 13B is a plan view illustrating a louver device according to another example. FIG. 13C illustrates a scene in which sunlight enters a louver device according to another example. FIG. 13D illustrates a scene in which sunlight enters a louver device according to another example. FIG. 14A schematically illustrates a mechanism for adjusting the angle of a blade member of a louver device according to another example. FIG. 14B schematically illustrates a mechanism for adjusting the angle of the blade member of the louver device according to another example.

  Hereinafter, an embodiment according to an aspect of the present invention (hereinafter, also referred to as “this embodiment”) will be described with reference to the drawings. However, this embodiment described below is only an illustration of the present invention in all respects. Various improvements and modifications may be made without departing from the scope of the present invention. That is, in implementing the present invention, a specific configuration according to the embodiment may be adopted as appropriate.

§1 Configuration example <Overall structure>
First, the louver device 2 according to the present embodiment will be described with reference to FIGS. FIG. 1 is a plan view schematically illustrating the configuration of a louver device 2 according to this embodiment. FIG. 2 is a side view schematically illustrating the configuration of the louver device 2 according to this embodiment. FIG. 3 illustrates a scene in which the blade member 21 of the louver device 2 according to the present embodiment collects sunlight on the shaft body 20. FIG. 4 illustrates a scene where the blade member 21 of the louver device 2 according to the present embodiment rotates.

  1 to 4 exemplify each direction using the x-axis, y-axis, and z-axis for convenience of explanation. Here, the z-axis direction corresponds to a direction perpendicular to the ground, and the positive direction of the z-axis corresponds to a vertically upward direction. The xy plane corresponds to a plane horizontal to the ground, and the x-axis direction and the y-axis direction correspond to directions horizontal to the ground, respectively. Hereinafter, the z-axis positive direction and the negative direction are referred to as “up” and “down”, respectively, the x-axis positive direction and the negative direction are respectively referred to as “left” and “right”, and the y-axis positive direction. The negative direction is referred to as “front” and “back”, respectively.

  As illustrated in FIGS. 1 and 2, the louver device 2 according to the present embodiment includes a plurality of louver units 26 arranged to block sunlight. The louver device 2 can be used as a blind and is arranged on a window side of a building having a glass window. Therefore, as illustrated in FIG. 2, each louver unit 26 blocks sunlight incident from the front of the louver device 2.

  In the present embodiment, each louver unit 26 includes a shaft body 20 that extends in the x-axis direction, and a light-shielding blade member 21 that is attached to the outdoor side of the shaft body 20. As will be described later, the shaft body 20 is configured by a vacuum tube type heat collector that absorbs sunlight and collects heat, and both ends thereof are fixed by a pair of frame members 23.

  Gears 22 are rotatably attached to both ends of the shaft body 20, respectively. Each gear 22 is attached with a pair of support members 25 opposed in the vertical direction. Each support member 25 extends forward from the shaft body 20 and supports both ends of the blade member 21 extending in the x-axis direction. Specifically, a pair of support members 25 support each end portion of the blade member 21, whereby the blade member 21 is fixed to the outdoor side of the shaft body 20. The support member 25 is, for example, a metal or resin rod-shaped member. Any material may be used for the support member 25 as long as the blade member 21 can be fixed.

  The blade member 21 is formed in a plate shape, and is attached so that the surface of the blade member 21 is along the z-axis direction. The blade member 21 is used to shield sunlight and shield the heat of sunlight. Specifically, as illustrated in FIG. 3, the blade member 21 is configured by a Fresnel lens that collects sunlight on the shaft body 20. The shaft body 20 is disposed at or near the focal position of the Fresnel lens. The blade member 21 may be a Fresnel lens having any shape as long as it can collect light on the shaft body 20. However, in order to collect sunlight on the shaft body 20, it is preferable to employ a linear Fresnel lens that can collect light on a straight line as the blade member 21.

  FIG. 3 illustrates a scene in which the blade member 21 formed of a Fresnel lens collects sunlight. The Fresnel lens collects directional light. Therefore, direct solar radiation SA of sunlight is condensed on the shaft body 20 by the blade member 21. On the other hand, since the scattered solar radiation SB is directed in various directions, it is not condensed on the shaft body 20 and passes through the blade member 21 as it is. Therefore, the louver device 2 according to the present embodiment collects the direct solar radiation SA having a large amount of heat on the shaft body 20 and shields it, and can scatter the scattered solar radiation SB having a small amount of heat indoors.

  Here, in FIG. 3, the surface of the blade member 21 is oriented to be perpendicular to the incident direction of sunlight. When the position of the sun changes, the incident angle of sunlight with respect to the surface of the blade member 21 changes, so that the focus position of sunlight may deviate from the shaft body 20.

  For example, direct solar radiation SA1 illustrated in FIG. 4 illustrates light from the sun at a relatively low altitude such as early morning or before sunset. On the other hand, direct solar radiation SA2 illustrated in FIG. 4 exemplifies light from the sun at a relatively high altitude such as in the south. As in the relationship between the direct solar radiation SA1 and the direct solar radiation SA2, when the incident angle of sunlight is changed in the vertical direction, the focal position of the sunlight is shifted from the shaft body 20 in the vertical direction. Therefore, as illustrated in FIG. 4, the blade member 21 according to the present embodiment is configured to be rotatable in the vertical direction around the shaft body 20.

  Specifically, as illustrated in FIG. 2, the louver device 2 includes a string-like member 24 that extends in the vertical direction in front of and behind each shaft body 20. Each string-like member 24 is suspended by a toothed pulley (not shown) or the like and is configured to be movable in the vertical direction. Each string-like member 24 meshes with the gear 22.

  Therefore, the user can rotate the gear 22 around the shaft body 20 by pulling the string-like member 24 upward or downward, thereby attaching the blade member 21 as illustrated in FIG. The angle can be changed. Therefore, when the incident angle of sunlight changes in the vertical direction, the user can adjust the focal position of sunlight so that it matches the shaft body 20 by changing the attachment angle of the blade member 21. .

  On the other hand, when the incident angle of sunlight changes in the left-right direction, the focal position of sunlight only changes left and right on the shaft body 20. Therefore, the focal position of sunlight is maintained on the shaft body 20 without changing the position and orientation of the blade member 21. That is, it is possible to cope with changes in the position of the sun without changing the position and orientation of the blade member 21.

  In the present embodiment, as illustrated in FIGS. 1 and 2, the plurality of louver units 26 are arranged at a predetermined interval in the direction perpendicular to the ground (z-axis direction). And each louver unit 26 is comprised so that the axial direction of the shaft body 20 and the blade | wing member 21 may face a horizontal direction (x-axis direction) with respect to the ground. As a result, the louver device 2 according to the present embodiment constitutes a horizontal blind.

  Here, the blade member 21 (Fresnel lens) condenses sunlight incident from the outdoor side on the shaft body 20. Therefore, when the blade member 21 is viewed from behind, in other words, when the Fresnel lens is viewed from the indoor side, the scenery obtained through the Fresnel lens is unclear. For this reason, in the present embodiment, the blade members 21 are arranged so as to be separated from each other so that the outdoor view can be seen from the indoor side. Specifically, in two adjacent louver units 26, a gap J is provided between the lower end portion of the blade member 21 disposed on the upper side and the upper end portion of the blade member 21 disposed on the lower side. The length of the gap J may be appropriately determined according to the embodiment. As a result, an outdoor view can be secured from the indoor side.

<Configuration of shaft>
Next, the configuration of the shaft body 20 will be described with reference to FIGS. 5A and 5B. FIG. 5A illustrates the configuration of the shaft body 20 according to the present embodiment, and FIG. 5B is a cross-sectional view taken along line XX of FIG. 5A. As illustrated in FIGS. 5A and 5B, the shaft body 20 according to the present embodiment is configured by a vacuum tube type heat collector that absorbs sunlight and collects heat.

  Specifically, the shaft body 20 includes a cylindrical hollow glass outer glass tube 201 having one end formed in a hemispheric shape and closed, and the other end opened. The outer glass tube 201 is arranged to extend in the horizontal direction. A cylindrical hollow glass inner glass tube 202 is disposed inside the outer glass tube 201.

  The inner glass tube 202 has the same diameter as the outer glass tube 201 and has a small diameter, and is arranged coaxially with the outer glass tube 201. And the opening side ends of the outer glass tube 201 and the inner glass tube 202 are joined together in an airtight manner, and the inner space, that is, the inner peripheral surface of the outer glass tube 201 and the outer peripheral surface of the inner glass tube 202 are combined. Between these, a vacuum layer 203 is formed. That is, the shaft body 20 is a vacuum double glass tube configured with an outer glass tube 201 and an inner glass tube 202. The end of the vacuum double glass tube, that is, the opening of the inner glass tube 202 is sealed by a frame member 23 to which the shaft body 20 is fixed.

  The outer peripheral surface of the inner glass tube 202 located on the vacuum layer 203 side is coated with a selective absorption film 204 that absorbs sunlight and collects heat. The selective absorption film 204 may be a film that absorbs sunlight and collects heat. For example, the selective absorption film 204 may be a multilayer film formed of black chrome, black nickel, aluminum nitride, or the like, sputtering, electroplating, or the like. Or a film with irregularities on the surface.

  Heat transfer fins 205 are provided on the opposite side of the selective absorption film 204, that is, in the inner space of the inner glass tube 202 so as to contact the inner peripheral surface of the inner glass tube 202. In this internal space, a U-shaped tube 206 is provided so as to be wrapped by the heat transfer fin 205.

  The heat transfer fin 205 is made of, for example, aluminum, and transfers heat of the selective absorption film 204 to the U-shaped tube 206. The U-shaped tube 206 is made of, for example, copper, and both ends of the U-shaped tube 206 protrude from the opening of the inner glass tube 202 toward the frame member 23 and are connected to piping passing through the frame member 23. As a result, the heat transfer fluid supplied from the pipe flows in the U-shaped tube 206.

  The heat transfer liquid is a liquid for transporting the heat collected in the selective absorption film 204, and is, for example, water, antifreeze liquid, or the like. The heat transfer fluid moves in the pipe by the action of the pump, and is warmed by the heat transmitted to the U-shaped pipe 206 when moving in the U-shaped pipe 206. Therefore, the heat collected in the selective absorption film 204 is transmitted to the U-shaped tube 206 through the heat transfer fins 205 and absorbed by the heat transfer fluid flowing in the U-shaped tube 206. In addition, the said heat transfer liquid may be drained to a sewer through piping, and may be utilized with the hot water supply system demonstrated below. The shaft body 20 according to the present embodiment is configured as a vacuum tube type heat collector as described above, thereby absorbing sunlight collected by the blade member 21 (Fresnel lens) and collecting heat. it can.

<Effect>
In the louver device 2 according to the present embodiment, sunlight is condensed on the shaft body 20 by the blade member 21 formed of a Fresnel lens. And the sunlight condensed on the shaft body 20 is absorbed and collected by the selective absorption film 204 of the shaft body 20.

  Here, the selective absorption film 204 exists in the vacuum layer 203 formed by the outer glass tube 201 and the inner glass tube 202. Since heat conduction hardly occurs in a vacuum state, the heat of sunlight collected by the selective absorption film 204 is hardly transmitted to the outside of the shaft body 20 and is not easily re-emitted into the building.

  Therefore, according to the said embodiment, since the re-release | release of the heat | fever of the collected sunlight into a building can be prevented, the thermal-insulation efficiency of the sunlight in the window side of the building which has a glass window can be improved. . That is, by arranging the louver device 2 according to the present embodiment in the perimeter zone or the double skin portion in the building, it is possible to reduce the air conditioning load of the perimeter zone.

  Further, in the louver device 2 according to the present embodiment, the heat of the collected sunlight is taken into the heat transfer liquid, not the air exhausted outside the building, and is discharged to the sewer, for example. Therefore, according to the present embodiment, it is possible to prevent the atmospheric diffusion of the heat in the building that is a cause of the heat island phenomenon.

  Further, in the louver device 2 according to the above-described embodiment, the blade member 21 collects the sunlight incident on the surface range of the blade member 21 so as to strike the shaft body 20. Therefore, even with sunlight that has been attenuated through the glass window, the amount of heat collected per shaft body 20 (heat collector) can be increased, and heat collection can be performed while maintaining appropriate heat shielding of sunlight. It can be done efficiently.

  Further, in the louver device 2 according to the above-described embodiment, the blade member 21 blocks the direct solar radiation SA having a large amount of heat by concentrating it on the shaft body 20, and only the scattered solar radiation SB that is small in heat amount and suitable for indoor lighting. Permeate. That is, according to the above embodiment, the solar radiation SA is appropriately shielded by absorbing the direct solar radiation SA having a large amount of heat by the shaft body 20, and the scattered solar radiation SB having a small amount of heat is collected from the outside to the room. Can provide moderate light.

<Hot water supply system>
Next, a hot water supply system using the louver device 2 described above will be described with reference to FIG. 6A. FIG. 6A illustrates a hot water supply system 1 a including the louver device 2. As illustrated in FIG. 6A, the louver device 2 can be used as, for example, a component of the hot water supply system 1a.

  As illustrated in FIG. 6A, the hot water supply system 1 a according to the present embodiment includes a first piping path A including the louver device 2 and a second piping path B including the hot water storage tank 5. They are connected by a heat exchanger 4. First, the first piping path A will be described. The first piping path A is a closed path connected to each shaft body 20 of the louver device 2, and the heat transfer fluid flowing through each shaft body 20 is circulated in the direction of the arrow in the figure by the pump 3. ing. The second piping path B is a closed path for circulating the tap water added to the hot water storage tank 5, and the water in the hot water storage tank 5 is pumped by the pump 6 along the arrow direction in the drawing of the second piping path B. Circulating. The hot water storage tank 5 is connected to a hot water heater 7 that further warms the hot water in the hot water storage tank 5 when hot water is supplied. The water heater 7 is, for example, a boiler such as gas, oil, or electricity, or a heat pump, and is used as an auxiliary heat source.

  The above hot water supply system 1a operates as follows. That is, the heat collected by each shaft body 20 of the louver device 2 is first taken into the heat transfer fluid that passes through the louver device 2. Specifically, the heat transfer fluid circulating through the first piping path A passes through the U-shaped pipe 206 of each shaft body 20 by the action of the pump 3. At this time, the heat transfer fluid flowing through the U-shaped tube 206 acquires heat collected by the selective absorption film 204 through the heat transfer fins 205.

  The heat taken into the heat transfer fluid in the first piping path A moves to the water in the second piping path B via the heat exchanger 4. The heat medium liquid in the second piping path B warmed by the heat exchanger 4 is stored in the hot water storage tank 5 by the action of the pump 6. On the other hand, the heat transfer fluid in the first piping path A cooled by the heat exchanger 4 flows again into the U-shaped tube 206 of the louver device 2 by the action of the pump 3.

  Therefore, the hot water warmed by the heat conveyed through the first piping path A, the heat exchanger 4 and the second piping path B is stored in the hot water storage tank 5. That is, the heat exchanger 4, the first piping path A, and the second piping path B correspond to a heat transfer mechanism for transferring the heat collected by the shaft body 20. And in the hot water supply system 1a which concerns on this embodiment, the warm water stored in the hot water storage tank 5 is further warmed with the hot water heater 7, and is utilized.

  According to the hot water supply system 1a, the heat of the collected solar light is discharged into the sewer after being used for hot water supply in the building. Therefore, according to the hot water supply system 1a, it is possible to effectively use the heat of the collected sunlight while preventing atmospheric diffusion of the heat in the building that is a cause of the heat island phenomenon.

  Note that the hot water supply system 1a illustrated in FIG. 6A is merely an example of a hot water supply system using the louver device 2, and regarding the specific configuration described above, the omission and replacement of components are appropriately performed according to the embodiment. And addition is possible. For example, the louver device 2 and the hot water storage tank 5 may be directly connected by piping without passing through the heat exchanger 4. In this case, the piping connecting the louver device 2 and the hot water storage tank 5 corresponds to the heat transfer mechanism of the present invention.

<Air conditioning system>
Next, an air conditioning system using the above-described louver device 2 will be described with reference to FIG. 6B. FIG. 6B illustrates an air conditioning system 1 b including the louver device 2. As illustrated in FIG. 6B, the louver device 2 can be used as, for example, a component of the air conditioning system 1b.

  Since the route from the louver device 2 to the hot water storage tank 5 is the same as that of the hot water supply system 1a, the description of the configuration and operation is omitted. The air conditioning system 1b illustrated in FIG. 6B includes a third piping path C including the hot water storage tank 5 and a fourth piping path D including the low temperature heat storage tank 13 in addition to the components of the hot water supply system 1a.

  The third piping path C and the fourth piping path D are respectively closed paths, and when connected by the absorption refrigeration machine 11 and form an integral closed path without going through the absorption chiller 11. (Route connected by the dotted line F in the figure) can be selectively taken. In the third piping path C, the water in the hot water storage tank 5 is circulated by the pump 9 along the arrow direction in the figure, and in the fourth piping path D, the water in the low-temperature heat storage tank 13 is shown in the figure by the pump 12. It circulates along the arrow direction.

  The low-temperature heat storage tank 13 is connected to the fan coil unit 15 through the fifth piping path E. The fifth piping path E is a closed path for circulating the water in the low-temperature heat storage tank 13 between the low-temperature heat storage tank 13 and the fan coil unit 15 by the pump 14. Moreover, the fan coil unit 15 performs indoor cooling or heating using water supplied from the low-temperature heat storage tank 13 as a refrigerant or a heat medium. In this embodiment, the air-conditioning mechanism 10 that performs both cooling and heating is formed by the absorption refrigerator 11, the low-temperature heat storage tank 13, and the fan coil unit 15 as described above.

  The above air conditioning system 1b operates as follows. When the air conditioning system 1b performs cooling, the third piping path C and the fourth piping path D are closed paths and are connected by the absorption refrigerator 11. Then, the hot water in the hot water storage tank 5 warmed by using the louver device 2 is sent to the absorption refrigerator 11 by the action of the pump 9. As described in the hot water supply system 1a, the first piping path A, the heat exchanger 4, and the second piping path B correspond to the heat transfer mechanism of the present invention, and the hot water storage tank 5 includes the louver device 2. Hot water warmed by the collected heat is stored.

  The absorption refrigerator 11 includes an evaporator that performs cooling by heat of vaporization, an absorber that absorbs water vapor evaporated by the evaporator with an absorbing liquid, a regenerator that regenerates the concentration of the absorbing liquid in the absorber by heating, and a regenerator. It is composed of a condenser that condenses evaporated water vapor into a refrigerant used in the evaporator. In the absorption refrigerator 11, the third piping path C is connected to the regenerator, and the fourth piping path D is connected to the evaporator. And the absorption refrigerator 11 cools the water which circulates in the 4th piping path | route D using the hot water supplied from the hot water storage tank 5 via the 3rd piping path | route C as a heat source.

  The water in the third piping path C used as a heat source returns to the hot water storage tank 5 by the action of the pump 9, acquires heat again, and is used as a heat source for the absorption chiller 11. On the other hand, the water in the fourth piping path D cooled by the absorption refrigerator 11 is stored in the low-temperature heat storage tank 13 by the action of the pump 12. That is, the hot water storage tank 5 functions as a high-temperature heat storage tank that stores hot water serving as a heat source for the low-temperature heat storage tank 13.

  The cold water stored in the low-temperature heat storage tank 13 circulates in the fifth piping path E by the action of the pump 14 and is supplied to the fan coil unit 15. The fan coil unit 15 performs cooling by cooling indoor air using the cold water supplied from the low-temperature heat storage tank 13. Then, the water heated by cooling the fan coil unit 15 returns to the low-temperature heat storage tank 13 via the fifth piping path E, is cooled again, and is used as a refrigerant for the fan coil unit 15. In the air conditioning system 1b (air conditioning mechanism 10) according to the present embodiment, cooling is performed in this manner.

  On the other hand, when the air conditioning system 1b performs heating, the third piping path C and the fourth piping path D are directly connected to form an integrated closed path without passing through the absorption refrigerator 11 (in the drawing). A route connected by a dotted line F). Therefore, the hot water in the hot water storage tank 5 (in parentheses in the figure) heated by using the louver device 2 is sent to the low temperature heat storage tank 13 by the action of at least one of the pump 9 and the pump 12.

  The hot water stored in the low-temperature heat storage tank 13 circulates in the fifth piping path E by the action of the pump 14 and is supplied to the fan coil unit 15. The fan coil unit 15 performs heating by warming indoor air using hot water supplied from the low-temperature heat storage tank 13. Then, the water cooled by the heating of the fan coil unit 15 returns to the low-temperature heat storage tank 13 via the fifth piping path E, is warmed again, and is used as a heat medium for the fan coil unit 15. . The water in the low-temperature heat storage tank 13 cooled by the water returning from the fan coil unit 15 returns to the hot water storage tank 5 via the fourth piping path D and the third piping path C, and is warmed again, so that the low-temperature heat storage tank 13 is supplied. In the air conditioning system 1b (air conditioning mechanism 10) according to the present embodiment, heating is performed in this manner.

  Note that the air conditioning system 1b illustrated in FIG. 6B is merely an example of an air conditioning system that uses the louver device 2, and regarding the specific configuration described above, the omission and replacement of components are appropriately performed according to the embodiment. And addition is possible. For example, the air conditioning system 1b can perform both cooling and heating, but may not perform either cooling or heating.

  In this case, for example, the third piping path C and the fourth piping path D may not be directly connected. At this time, the air conditioning system 1b (air conditioning mechanism 10) cannot perform heating. Further, for example, the third piping path C may be connected to a radiator instead of the absorption refrigerator 11. At this time, the air conditioning system 1b (air conditioning mechanism 10) cannot perform cooling, and the radiator corresponds to the air conditioning mechanism of the present invention, and performs heating using hot water (heat) supplied from the hot water storage tank 5.

  In the air conditioning system 1b illustrated in FIG. 6B, a path that can be used for hot water supply from the hot water storage tank 5 as in the hot water supply system 1a may be provided. Thereby, the air-conditioning hot-water supply system which can perform at least any one of air_conditioning | cooling and heating, and hot_water | hot_water supply using the heat collected using the louver apparatus 2 may be comprised.

  Further, as illustrated in FIG. 6C, an air conditioning system capable of dehumidification may be configured by connecting the louver device 2 to the desiccant dehumidifier 16 instead of the air conditioning mechanism 10. FIG. 6C illustrates an air conditioning system 1c that can be dehumidified. In the air conditioning system 1c, the first piping path A corresponds to a heat transfer mechanism for transferring heat collected by the shaft body 20. The desiccant dehumidifier 16 corresponds to an air conditioning mechanism for performing dehumidification.

  The desiccant dehumidifier 16 includes, for example, a desiccant rotor and a sensible heat exchange rotor, and exhausts indoor air to the outside while supplying air to the room after dehumidifying the outdoor air with the desiccant rotor. Thereby, desiccant dehumidifier 16 can perform indoor dehumidification.

  Here, in the desiccant rotor for dehumidifying the air, a hygroscopic agent such as a silica gel agent or a zeolite agent is used. The moisture absorbent that adsorbs moisture in the air can be desorbed and regenerated by applying heat. Therefore, the desiccant dehumidifier 16 is provided with a heat source for regenerating the hygroscopic agent between the desiccant rotor and the sensible heat exchange rotor.

  A heat source for regenerating the hygroscopic agent is, for example, a heat exchanger using hot water. Therefore, as illustrated in FIG. 6C, the pipe of the first piping path A connected to the louver device 2 is connected to the desiccant dehumidifier 16 (heat exchanger), and the hot water obtained by the louver device 2 is used as the desiccant dehumidifier 16. The pump 3 is operated so as to be sent to the heat exchanger. Thereby, in the air conditioning system 1c, the heat collected by the louver device 2 can be used for the regeneration of the moisture absorbent of the desiccant dehumidifier 16.

  Note that the air conditioning system to which the louver device 2 is connected may include an air conditioning mechanism capable of cooling, heating, and dehumidification, or may include a plurality of air conditioning mechanisms. For example, the air conditioning system may include both the air conditioning mechanism 10 and the desiccant dehumidifier 16. In this case, you may switch the air-conditioning mechanism which connects the louver apparatus 2 according to a scene. That is, when the heat collected by the louver device 2 is used for heating or cooling, the piping of the first piping path A connected to the louver device 2 is connected to the heat exchanger 4 as illustrated in FIG. 6B. May be. On the other hand, when the heat collected by the louver device 2 is used for dehumidification, the pipe of the first piping path A connected to the louver device 2 is connected to the desiccant dehumidifier 16 as illustrated in FIG. 6C. Also good.

<Exterior material>
Next, the exterior material using the louver device 2 described above will be described with reference to FIG. 7A. FIG. 7A illustrates the exterior material 8 including the louver device 2. As illustrated in FIG. 7A, for example, the louver device 2 can be used as a component of a building exterior material 8.

  As illustrated in FIG. 7A, the exterior material 8 according to the present embodiment includes an outer glass material 81 formed in a plate shape, and a rectangular frame material 82 that fixes upper and lower ends of the outer glass material 81. It is equipped with. The exterior material 8 is arranged with the left side in the figure facing the outside of the building so that the outer glass material 81 becomes the exterior of the building, and the inside of the building with respect to the outer glass material 81 (right side in the figure). The louver device 2 is disposed at the top. And the string-like member 24 for changing the attachment angle of each blade member 21 of the louver device 2 is wound around the toothed pulley 83 arranged in the internal space of the frame member 82, and the front of the louver device 2 and It is hung backward. The toothed pulley 83 can be manually rotated from the outside of the exterior material 8. Therefore, the user can change the attachment angle of each blade member 21 of the louver device 2 by operating the string member 24.

  By using such an exterior material 8 for a glass window of a building, heat is collected before the heat of sunlight enters the building, and emission of the collected solar heat into the building is prevented. Can do. Therefore, according to the exterior material 8, it is possible to increase the heat shielding efficiency of sunlight on the windows of the building. And it becomes possible to reduce the air-conditioning load of the perimeter zone in the said building by this.

  The exterior material 8 illustrated in FIG. 7A is merely an example of the exterior material using the louver device 2, and regarding the specific configuration described above, the omission and replacement of components are appropriately performed according to the embodiment. And addition is possible. For example, the exterior material 8 may include a driving device that electrically drives the toothed pulley 83. Thereby, the attachment angle of the blade member 21 can be changed electrically.

  In addition, as illustrated in FIG. 7B, the exterior material 8 may further include an inner glass material 84 disposed to face the outer glass material 81. In this case, the louver device 2 may be disposed in an internal space formed by the outer glass material 81 and the inner glass material 84. Thereby, the space where the louver device 2 that collects the heat of sunlight is present and the space inside the building are blocked by the inner glass member 84. Therefore, it is possible to prevent the heat collected by the louver device 2 from being re-emitted into the building, and to further improve the heat shielding efficiency of sunlight on the windows of the building.

  In this case, the exterior material 8 is, for example, the exterior material 8 so that the attachment angle of the blade member 21 of the louver device 2 disposed in the internal space of the exterior material 8 can be changed from the outside of the exterior material 8. You may comprise so that the string-like member 24 can be operated from the outside.

§2 Modifications As described above, the embodiments of the present invention have been described in detail. However, the above description is merely an example of the present invention in all respects. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention.

<Arrangement of shaft body and blade member>
In the louver device 2, the plurality of louver units 26 are arranged at predetermined intervals in a direction perpendicular to the ground (up and down direction). And each louver unit 26 is comprised so that the axial direction of the shaft body 20 and the blade | wing member 21 may face a horizontal direction (left-right direction) with respect to the ground. Thus, the louver device 2 constitutes a horizontal blind. However, the arrangement direction of the shaft body 20 and the blade member 21 may not be limited to such an example, and the louver device 2 may constitute a vertical blind as illustrated in FIG.

  FIG. 8 illustrates the louver device 2 configured as a vertical blind. As illustrated in FIG. 8, in the vertical louver device 2, the plurality of louver units 26 are arranged at predetermined intervals in the horizontal direction (left-right direction) with respect to the ground. And each louver unit 26 is comprised so that the axial direction of the shaft body 20 and the blade | wing member 21 may face a perpendicular direction (up-down direction) with respect to the ground.

  In this case, when the incident angle of sunlight changes in the vertical direction, the focal position of sunlight only changes up and down on the shaft body 20. Therefore, this louver device 2 can cope with changes in the position of the sun without changing the position and orientation of the blade member 21. On the other hand, when the incident angle of sunlight changes in the left-right direction, the focal position of sunlight shifts from the shaft body 20 in the left-right direction. Therefore, in the louver device 2, the blade member 21 is configured to be rotatable in the left-right direction with the shaft body 20 as an axis.

  Here, the relationship between the direction of the glass window in which the louver device 2 is installed and the type of the louver device 2 will be described with reference to FIGS. FIG. 9 illustrates the relationship between a building window and the incident angle of sunlight.

  1 and 8 illustrate a state where the louver device 2 is viewed from the front. Therefore, the left side of each figure is the right side when viewed from the louver device 2, and the right side of each figure is the left side when viewed from the louver device 2. Further, the upper side of each figure is above the louver device 2, and the lower side of each figure is below the louver device 2. 1 and 8, the louver device 2 is arranged so that the glass window of the building exists on the front side of the paper (in the positive y-axis direction).

  As illustrated in FIG. 9, sunlight is likely to enter the south-facing window 91 from above. That is, sunlight is likely to enter the louver device 2 arranged in the south-facing window 91 from above as viewed from the louver device 2. Therefore, when the louver device 2 is used in the vicinity of the south-facing window 91, sunlight is more easily incident on the blade member 21 when the blade member 21 is arranged more horizontally. Therefore, in the vicinity of the south-facing window 91, the horizontal louver device 2 illustrated in FIG. 1 is relatively easy to use.

  On the other hand, as illustrated in FIG. 9, sunlight is likely to enter the east-facing window 92 from the right side when viewed from the window 92. That is, sunlight is likely to enter the louver device 2 arranged in the east-facing window 92 from the right side when viewed from the louver device 2. Therefore, when the louver device 2 is used in the vicinity of the east-facing window 92, it is easier for the sunlight to enter the blade member 21 when the blade member 21 is arranged more vertically. Therefore, in the vicinity of the east-facing window 92, the vertical louver device 2 illustrated in FIG. 8 is relatively easy to use.

  Note that the west-facing window not shown in FIG. 9 is the same as the east-facing window 92. Sunlight is likely to enter the louver device 2 disposed in the west-facing window from the left side when viewed from the louver device 2. Therefore, when the louver device 2 is used in the vicinity of a west-facing window, sunlight is more easily incident on the blade member 21 when the blade member 21 is arranged more vertically. Therefore, in the vicinity of the west-facing window, the vertical louver device 2 illustrated in FIG. 8 is relatively easy to use.

  Thus, there is a suitable arrangement direction of the shaft body 20 and the blade member 21 depending on the place of use. Therefore, the louver device 2 may be configured such that the arrangement direction of the shaft body 20 and the blade member 21 can be changed according to the place of use.

  In the vertical louver device 2, the axial direction of the shaft body 20 is oriented perpendicular to the ground. Therefore, the heat transfer liquid flowing in the shaft body 20 is heated and raised by the heat collected in the selective absorption film 204 by the heat convection generated in the shaft body 20 and can be naturally discharged from the shaft body 20. Therefore, in the vertical louver device 2, a pump for forcibly circulating the heat transfer fluid may be omitted. Further, the U-shaped tube 206 may be omitted so that the heat transfer liquid flows directly into the internal space of the vacuum double glass tube constituted by the outer glass tube 201 and the inner glass tube 202. Further, in this case, the heat transfer fin 205 may be omitted.

<Use of heat pipe>
Further, in each shaft body 20 of the vertical louver device 2, a heat pipe may be used for transporting the heat collected by the selective absorption film 204. An example of using the heat pipe will be described with reference to FIG.

  FIG. 10 illustrates the configuration of the shaft body 20 when the heat pipe 207 is provided. In the shaft body 20 illustrated in FIG. 10, the opening of the vacuum double glass tube composed of the outer glass tube 201 and the inner glass tube 202 is sealed with a lid member 208, and a heat medium is contained in the heat pipe 207. Liquid is enclosed.

  Therefore, in this case, the heat collected in the selective absorption film 204 is transmitted to the heat pipe 207 through the heat transfer fins 205 and is absorbed by the heat transfer liquid sealed in the heat pipe 207. . When the heat transfer fluid in the heat pipe 207 is warmed, heat convection occurs in the heat pipe 207. Therefore, the heated heat transfer fluid collects on the head 207a of the heat pipe 207.

  Therefore, when such a shaft 20 is used, a mechanism for cooling the head 207a of the heat pipe 207 may be provided. Further, in order to use the configuration of the shaft body 20 in the hot water supply system 1a and the air conditioning system 1b, a mechanism for transferring heat from the head 207a of the heat pipe 207 to the hot water storage tank 5 may be provided.

  Note that the shape of the heat transfer fin 205 is not particularly limited, and may be a shape as illustrated in FIGS. 11A and 11B. For example, in FIG. 11A, an arc-shaped outer peripheral portion 205a in contact with the inner peripheral surface of the inner glass tube 202, an arc-shaped inner peripheral portion 205b in contact with the outer peripheral surface of the heat pipe 207, an outer peripheral portion 205a, and an inner peripheral portion 205b The heat transfer fin 205 provided with the connection part 205c which connects 2 is illustrated. Further, for example, in FIG. 11B, a pair of flat plate-like heat transfer fins 205 placed so as to sandwich the heat pipe 207 are illustrated.

<Others>
In addition, regarding the specific configuration of the louver device 2 described above, components can be omitted, replaced, and added as appropriate according to the embodiment.

  For example, the number of the louver units 26 configured by the shaft body 20 and the blade member 21 may be one set or a plurality of sets. There may be at least one louver unit 26. Further, for example, in the above embodiment, the opening of the vacuum double glass tube constituted by the outer glass tube 201 and the inner glass tube 202 is sealed with the frame member 23, but is sealed with a heat insulating material. Also good.

  In addition, regarding the specific configuration of the louver device 2 described above, the material, position, size, and shape of each component can be selected and changed as appropriate according to the embodiment.

(Arrangement of selective absorption membrane)
For example, the selective absorption film 204 may be provided on the inner peripheral surface of the inner glass tube 202 or the outer peripheral surface of the heat transfer fin 205 in order to increase the efficiency of heat conduction to the U-shaped tube 206 or the heat pipe 207. .

(Adjusting the focal position)
Moreover, in the said embodiment, the blade | wing member 21 is comprised so that rotation about the shaft body 20 is possible so that it can respond to the shift | offset | difference of the focus position of sunlight accompanying the change of a solar position. However, the method corresponding to the change in the sun position may not be limited to such an example. For example, the shaft body 20 is moved so as to correspond to the shift of the focal position of sunlight accompanying the change in the sun position. You may comprise. Moreover, you may respond | correspond to the shift | offset | difference of the focal position of sunlight accompanying the change of a solar position by providing the blade member 21 so that parallel displacement is possible, or providing a light-guide plate so that it may demonstrate below.

  First, with reference to FIG. 12A and FIG. 12B, a method corresponding to a change in the position of the sun will be described by configuring each blade member 21 to be movable in parallel. 12A and 12B illustrate a set of louver units 26a of the louver device 2 in which each blade member 21 is configured to be movable in parallel.

  As illustrated in FIG. 12A, when the incident angle of sunlight moves in the vertical direction, the focal position of sunlight (direct solar radiation) that has passed through the blade member 21 is shifted in the vertical direction. For example, the focal position of direct solar radiation SA2 incident on the blade member 21 from above is shifted downward compared to direct solar radiation SA1 incident perpendicularly to the surface of the blade member 21. The focal position shift amount L corresponds to the incident angle change amount K. Therefore, as illustrated in FIG. 12B, the blade member 21 is configured to be movable in the vertical direction in accordance with the deviation of the focal position of sunlight.

  Specifically, in the horizontal louver device 2 illustrated in FIGS. 12A and 12B, the shaft bodies 20 of the plurality of louver units 26a are arranged in a row along the vertical direction (up and down direction). On the other hand, each blade member 21 is connected by a support member 27 in the vertical direction (vertical direction). A material may be arbitrarily used for the support member 27 that supports each blade member 21.

  The support member 27 is configured to be movable in the vertical direction by being suspended by a gear or the like. Therefore, as illustrated in FIG. 12B, each blade member 21 can be moved either up or down by moving the support member 27 up or down. However, the method of configuring each blade member 21 to be movable is not limited to such an example, and may be appropriately determined according to the embodiment.

  In this way, by configuring each blade member 21 so as to be movable in the arrangement direction of the shaft bodies 20, it is possible to cope with changes in the position of the sun. For example, in the scene illustrated in FIG. 12B, the focal position of the direct solar radiation SA2 is shifted downward by a shift amount L. Therefore, the user translates each blade member 21 upward by a distance M so as to correspond to the focal position shift amount L of the direct solar radiation SA2. Thereby, the focal position of the direct solar radiation SA2 can be adjusted to the shaft body 20. That is, it is possible to eliminate the shift of the focal position of sunlight.

  In FIGS. 12A and 12B, the horizontal louver device 2 is illustrated. In the horizontal louver device 2, each blade member 21 is configured to be movable in the vertical direction. On the other hand, in the case of the vertical louver device 2 illustrated in FIG. 8, the shaft bodies 20 are arranged in a row along the horizontal direction, and the blade members 21 are arranged in the horizontal direction (left-right direction). It is configured to be able to translate.

  That is, in the case where the plurality of shaft bodies 20 are arranged in a line along one direction, when the incident angle of sunlight changes in the arrangement direction, the focal position of sunlight is changed from the shaft body 20. Can shift. Therefore, each blade member 21 is configured to be movable in parallel along the arrangement direction of the shaft bodies 20 so that the position where the sunlight is condensed can be adjusted according to the change in the incident direction of sunlight. .

  In this way, the structure in which each blade member 21 is configured to be movable in parallel in one direction is more likely to be simpler than the structure in which each blade member 21 is rotatable around the shaft body 20. For example, as illustrated in FIGS. 12A and 12B, each blade member 21 can be configured to be movable in the vertical direction only by the support member 27. Therefore, according to the modification, the louver device 2 that can cope with a change in the position of the sun can be configured with a simpler structure.

  Next, a method for adjusting the focal position of sunlight using the light guide plate will be described with reference to FIGS. 13A to 13D. FIG. 13A is a side view schematically illustrating the louver device 2 (louver unit 26 b) including the light guide plate 28. FIG. 13B is a plan view schematically illustrating the louver device 2 (louver unit 26b). 13C and 13D illustrate the usage scenes of the light guide plate 28.

  As illustrated in FIG. 13A, in this modification, each louver unit 26 b includes a plurality of light guide plates 28 that are rotatably attached further forward (outside of the room) than the blade member 21. The material of the light guide plate 28 can be selected as appropriate. The upper surface of each light guide plate 28 is a reflective surface 281 that reflects sunlight. The reflective surface 281 may be vapor-deposited with metal such as silver or aluminum so that sunlight is easily mirror-reflected.

  As illustrated in FIGS. 13A and 13B, gears 282 are attached to both ends of each light guide plate 28, and a pair of string-like members 29 extending in the vertical direction are disposed in front and rear of the gears 282. . Each string-like member 29 is suspended by a toothed pulley or the like whose illustration is omitted, and is configured to be movable in the vertical direction. Each string-like member 29 meshes with the gear 282.

  Therefore, the user rotates the gear 282 by pulling the string-like member 29 up or down, thereby changing the mounting angle of the light guide plate 28 as illustrated in FIGS. 13C and 13D. be able to. In addition, by providing the louver device 2 with a driving device that moves each string-like member 29 up or down, the attachment angle of the light guide plate 28 can be automatically changed.

  In this modification, the reflecting surface 281 of each light guide plate 28 reflects sunlight. Therefore, as illustrated in FIG. 13C and FIG. 13D, the angle of sunlight incident on the blade member 21 of each louver unit 26 b can be made constant by adjusting the attachment angle of each light guide plate 28.

  For example, in the scene of FIG. 13C, the direct solar radiation SA1 of sunlight is propelled in the horizontal direction (front-rear direction) and is incident on the blade member 21 in the vertical direction. In this modification, the incident angle of sunlight in this scene is used as a reference. That is, in the scene of FIG. 13C, the reflection surface 281 of each light guide plate 28 is oriented in the vertical direction so as not to act on the direct solar radiation SA1. Therefore, the direct solar radiation SA1 enters the blade member 21 regardless of the presence or absence of the light guide plate 28.

  On the other hand, in the scene of FIG. 13D, the direct solar radiation SA2 of sunlight is inclined from the horizontal direction as compared to the direct solar radiation SA1, and the angle of incidence on each blade member 21 can be changed. Therefore, by adjusting the mounting angle of each light guide plate 28, the direct solar radiation SA2 is specularly reflected by the reflecting surface 281 as illustrated in FIG. 13D. Thereby, similarly to the scene of FIG. 13C, the irradiation angle of the direct solar radiation SA2 can be bent so as to be incident in a direction perpendicular to each blade member 21. The attachment angle of each light guide plate 28 is adjusted as appropriate.

  As described above, the method using the light guide plate 28 can cope with the shift of the focal position of sunlight accompanying the change of the solar position without moving the blade member 21 and the shaft body 20. The blade member 21 is composed of a Fresnel lens, and the shaft body 20 is composed of a vacuum tube type heat collector. Therefore, the blade member 21 and the shaft body 20 may be relatively large.

  On the other hand, in this modification, the light guide plate 28 is used to define the incident angle of sunlight with respect to the blade member 21, but the light guide plate 28 has only a sunlight reflecting surface. Therefore, each light guide plate 28 can be configured much smaller than the blade member 21. Therefore, in this modification, since it can respond to the focus position shift of sunlight accompanying the change of the solar position without moving the blade member 21 and the shaft body 20 configured to be relatively large, it is simple. It is possible to provide the louver device 2 that is unlikely to fail.

(Angle adjustment mechanism of blade member)
In the louver device 2, the angle of the blade member 21 is adjusted by a mechanism constituted by the string-like member 24 and the gear 22. However, the mechanism for adjusting the angle of the blade member 21 is not limited to such an example. For example, the mechanism illustrated in FIGS. 14A and 14B may be used.

  FIG. 14A schematically illustrates a mechanism using the rack 241 and the pinion 221. In this mechanism, the pinion 221 is attached to the blade member 21. Therefore, by rotating the pinion 251 with a motor or the like and moving the rack 241 in the vertical direction in the figure, the pinion 221 rotates and the angle of the blade member 21 is changed. FIG. 14B schematically illustrates a mechanism using a bevel gear 242 with a shaft and a bevel gear 222. In this mechanism, the bevel gear 222 is attached to the blade member 21. Therefore, when the bevel gear 252 is rotated by a motor or the like and the bevel gear 242 with a shaft is rotated, the bevel gear 222 is rotated, and the angle of the blade member 21 is changed.

(Blade member mounting angle)
Moreover, in the said embodiment and modification, the blade member 21 is attached so that the surface of the said blade member 21 may follow az-axis direction. However, the attachment angle of the blade member 21 may not be limited to such an example, and the blade member 21 may be attached to be inclined from the z axis. In this case, in two adjacent louver units 26, a gap J having a length in the z-axis direction between the lower end portion of the blade member 21 disposed on the upper side and the upper end portion of the blade member 21 disposed on the lower side. Each louver unit 26 is arranged so that As a result, an outdoor view can be secured from the indoor side.

(Adjusting the mounting angle)
Moreover, in the louver device 2, the attachment angle of the blade member 21 is changed by the user's manual operation, and the focus position of sunlight is adjusted. However, the adjustment of the focus position of sunlight may be performed automatically instead of manually. In this case, for example, a driving device such as a motor that can drive the string-like member 24 may be attached to the louver device 2. And the attachment angle of the blade | wing member 21 may be automatically controlled with this drive device, and the focus position of sunlight may be adjusted. The same applies to the louver device constituted by the louver units (26a, 26b) according to the modified example. That is, the position of the blade member 21 and the angle of the light guide plate 28 may be automatically controlled.

(Relationship between blade member and lighting)
Moreover, in the said embodiment and modification, in order to ensure the outdoor view, the clearance gap J is provided between the adjacent two blade members 21. FIG. However, as described above, the vane member 21 condenses and blocks the direct solar radiation component of the sunlight on the shaft body 20, but transmits the scattered solar radiation component as it is without condensing on the shaft body 20. Therefore, the gap J may not be provided from the viewpoint of indoor lighting. That is, two adjacent blade members 21 may be disposed so as to contact each other. Moreover, the two adjacent blade members 21 may be integrally formed. Further, in this case, the louver device 2 may be composed of a single louver unit 26. The louver device 2 in which the gap J is not provided can be used, for example, in a place where an outdoor view is unnecessary.

  Moreover, you may utilize the louver apparatus 2 as a glass window of a building. That is, a glass window of a building may be configured with a Fresnel lens as the blade member 21, and the shaft body 20 may be disposed at the focal position. Thereby, the glass window of a building and the integrated louver apparatus 2 can be comprised. In addition, when the blade member 21 is configured as a fitting window, the shaft body 20 may be configured to be movable so as to be able to cope with a shift in the focal position of sunlight due to a change in the position of the sun. .

1a ... Hot water supply system, 1b ... Air conditioning system, 1c ... Air conditioning system,
2 ... Louvre device
20 ... shaft body, 21 ... blade member (Fresnel lens), 22 ... gear,
23 ... Frame material, 24 ... String member, 25 ... Support member,
26 ... Louvre unit,
27: Support member,
28 ... Light guide plate, 281 ... Reflecting surface, 282 ... Gear, 29 ... String member,
201 ... Outer glass tube, 202 ... Inner glass tube, 203 ... Vacuum layer, 204 ... Selective absorption membrane,
205 ... Heat transfer fin, 206 ... U-shaped tube, 207 ... Heat pipe, 208 ... Lid member,
221 ... pinion, 241 ... rack, 251 ... pinion,
222 ... bevel gear, 242 ... bevel gear with shaft, 252 ... bevel gear,
3 ... pump, 4 ... heat exchanger, 5 ... hot water storage tank, 6 ... pump, 7 ... water heater,
8 ... exterior material, 81 ... outer glass material, 82 ... frame material, 83 ... toothed pulley,
84 ... inner glass material,
10 ... air conditioning mechanism,
DESCRIPTION OF SYMBOLS 11 ... Absorption type refrigerator, 12 ... Pump, 13 ... Low temperature thermal storage tank, 14 ... Pump,
15 ... Fan coil unit,
16 ... Desiccant dehumidifier,
91 ... (south facing) window, 92 ... (east facing) window,
SA (SA1, SA2) ... direct solar radiation, SB ... scattered solar radiation

Claims (9)

A louver device arranged on a window side of a building with a glass window,
It has a plurality of louver units arranged to block sunlight,
Each louver unit is
A shaft composed of a vacuum tube type heat collector that absorbs sunlight and collects heat;
A light-shielding blade member attached to the outdoor side of the shaft body, and a blade member composed of a Fresnel lens that focuses the sunlight on the shaft body;
Have
The blade members of the plurality of louver units are arranged apart from each other so that an outdoor view is possible from the indoor side.
Louver device. The shaft bodies of the plurality of louver units are arranged in a row along one direction,
The wing members of each louver unit are configured to be movable in parallel along the arrangement direction of the shaft bodies so that the position where the sunlight is condensed can be adjusted according to the change in the incident direction of the sunlight. To be
The louver device according to claim 1. Each of the louver units is a plurality of light guide plates that are rotatably attached to the outdoor side of the blade member, and further includes a plurality of light guide plates each having a reflection surface that reflects the sunlight on the blade member. Prepare
The louver device according to claim 1. The plurality of louver units are arranged at predetermined intervals in a direction perpendicular to the ground,
Each of the louver units is configured such that the axial direction of the shaft body and the blade member is oriented horizontally with respect to the ground.
The louver device according to any one of claims 1 to 3. The plurality of louver units are arranged at predetermined intervals in a horizontal direction with respect to the ground,
Each of the louver units is configured such that the axial direction of the shaft body and the blade member is oriented in a direction perpendicular to the ground.
The louver device according to any one of claims 1 to 3. A louver device placed on the window side of a building with a glass window;
A heat transfer mechanism for transferring heat;
A hot water storage tank for storing hot water heated by the heat transferred by the heat transfer mechanism;
With
The louver device includes a plurality of louver units arranged to block sunlight,
Each of the louver units includes a shaft body constituted by a vacuum tube type heat collector that absorbs and collects the sunlight, and a light shielding blade member that is attached to an outdoor side of the shaft body. A blade member composed of a Fresnel lens that focuses the sunlight on the body,
The blade members of the plurality of louver units are arranged apart from each other so that an outdoor view is possible from the indoor side,
The heat transfer mechanism conveys a shaft body collected by the shaft bodies of the louver units.
Hot water system. A louver device placed on the window side of a building with a glass window;
A heat transfer mechanism for transferring heat;
An air-conditioning mechanism that performs at least one of heating, cooling, and dehumidification using heat transferred by the heat-transfer mechanism;
With
The louver device includes a plurality of louver units arranged to block sunlight,
Each of the louver units includes a shaft body constituted by a vacuum tube type heat collector that absorbs and collects the sunlight, and a light shielding blade member that is attached to an outdoor side of the shaft body. A blade member composed of a Fresnel lens that focuses the sunlight on the body,
The blade members of the plurality of louver units are arranged apart from each other so that an outdoor view is possible from the indoor side,
The heat transfer mechanism conveys a shaft body collected by the shaft bodies of the louver units.
Air conditioning system. The outer glass material that will be the exterior of the building,
A louver device disposed inside the building with respect to the outer glass material;
With
The louver device includes a plurality of louver units arranged to block sunlight,
Each of the louver units includes a shaft body constituted by a vacuum tube type heat collector that absorbs and collects the sunlight, and a light shielding blade member that is attached to an outdoor side of the shaft body. A blade member composed of a Fresnel lens that focuses the sunlight on the body,
The blade members of the plurality of louver units are arranged apart from each other so that an outdoor view is possible from the indoor side.
Exterior material. Further comprising an inner glass material disposed opposite the outer glass material,
The louver device is disposed in an internal space formed by the outer glass material and the inner glass material,
The exterior material according to claim 8.