Building member and air conditioning system

Abstract

To inhibit the breakage and melting of a building member even when a temperature of a liquid stored in the building member rises.SOLUTION: A building member 10 according to the present invention is a building member for internally storing a liquid and being used for radiation-type air conditioning utilizing the delivery and acceptance of heat between air and the liquid within a habitable room. A hull of the building member 10 is made of a resin material. An ignition point of the resin material is higher than a boiling point of the liquid. The building member is provided with an inner pressure release part 130 for releasing inner pressure of the building member 10 when the inner pressure of the building member 10 is a predetermined level or above.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a building component and an air conditioning system using the building component. [Background technology]

[0002] In recent years, air conditioning systems that combine radiant air conditioning with heat storage technology have been attracting attention from the perspective of energy conservation, etc. As an example of a combination of radiant air conditioning with latent heat technology, Patent Document 1 discloses an air conditioning system that performs radiant air conditioning by placing a building component that houses a heat storage medium that combines a latent heat storage material and a sensible heat storage material in the attic space behind panels that form the ceiling surface. By using a sensible heat storage material with excellent heat absorption properties and a latent heat storage material with excellent heat release properties in combination, it is possible to make effective use of unstable natural energy. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-133713 Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the temperature of a liquid such as water or a latent heat storage material contained in a building component rises excessively, the volume of the liquid increases rapidly, which may damage the building component. Furthermore, if a resin material is used for the building component that contains the liquid, the building component may melt due to the rise in the temperature of the liquid. From the perspective of providing a highly reliable air conditioning system, it is necessary to prevent damage or melting of the building component even if the temperature of the liquid contained in the building component rises excessively. [Means for solving the problem]

[0005] The building component of the present invention is a building component used for radiant air conditioning that contains a liquid inside and utilizes the exchange of heat between the air in a room and the liquid, and is characterized in that the outer shell of the building component is made of a resin material, the ignition point of the resin material is higher than the boiling point of the liquid, and the building component is provided with an internal pressure release section that releases the internal pressure when the internal pressure of the building component reaches a predetermined level or higher. [Effects of the Invention]

[0006] The construction element according to the present invention can prevent damage or melting of the construction element even when the temperature of the liquid contained in the construction element rises, thereby providing a highly reliable air conditioning system. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic diagram illustrating a configuration of an air conditioning system according to an embodiment. [Figure 2] 1 is a plan view schematically showing the arrangement of radiant panels that constitute an air conditioning system that is an example of an embodiment. FIG. [Figure 3] FIG. 1 is a perspective view of a radiation panel according to an embodiment. [Figure 4] 1 is a plan view of a radiation panel as an example of an embodiment, viewed from above. [Figure 5] FIG. 5 is a cross-sectional view taken along line AA in FIG. [Figure 6] FIG. 5 is a cross-sectional view taken along line BB in FIG. [Figure 7] 5 is a cross-sectional view taken along line CC in FIG. 4. DETAILED DESCRIPTION OF THE INVENTION

[0008] An example of an embodiment of an air conditioning system equipped with a building component according to the present invention will be described in detail below with reference to the drawings. The embodiment described below is merely an example, and the present invention is not limited to the following embodiment. Furthermore, the present invention also includes forms that are formed by selectively combining multiple embodiments and modified examples described below.

[0009] FIG. 1 is a schematic diagram showing the configuration of an air conditioning system 1 of this embodiment, and is a cross-sectional view of one floor of a building M in which the air conditioning system 1 is installed, viewed from the side. FIG. 2 is a diagram showing the arrangement of radiant panels 10 as building components that make up the air conditioning system 1, and is a plan view of the radiant panels 10 viewed from above. Note that FIG. 2 illustrates an arrangement of four radiant panels 10. The building M is, for example, a large store or an office, and has one or more floors. Note that the number of floors of the building M is not particularly limited.

[0010] As shown in Figure 1, the air conditioning system 1 is a radiant (radiant) air conditioning system having a plurality of radiant panels 10 that contain a liquid such as a latent heat storage material inside. In addition to the radiant panels 10, the air conditioning system 1 also includes a heat insulating material 30, piping 40 through which a heat medium flows, and a circulation device 50 that circulates the heat medium. The radiant panels 10 are disposed on the ceiling of a room 2 of a building M, and the heat insulating material 30 is disposed so as to cover the upper surface 10B (second surface) of the radiant panels 10.

[0011] The air conditioning system 1 has, for example, a cooling and heating function, and executes a cooling operation mode or a heating operation mode based on user operation or automatically based on the temperature of the living room 2. In the cooling operation mode, the air conditioning system 1 circulates a heat medium (chilled water) through the piping 40 using the circulation device 50, for example, during the nighttime hours when electricity demand is low. Heat is then exchanged between the heat medium and the radiant panel 10 via the piping 40. As a result, the liquid inside the radiant panel 10 is cooled. Then, during the daytime hours when the temperature rises, the liquid inside the radiant panel 10 absorbs heat from the occupant W in the living room 2, equipment (not shown), the walls and floor of the living room 2, etc. This allows the room temperature of the living room 2 to be lowered.

[0012] As shown in Figures 1 and 2, the radiant panel 10 is disposed between the ceiling boards 3 that form the ceiling surface of the living room 2. That is, the lower surface 10A (first surface) of the radiant panel 10 is exposed from the ceiling board 3 to the interior side of the room, and forms part of the ceiling surface of the living room 2. As the lower surface 10A of the radiant panel 10 forms the ceiling surface, heat is easily transferred between the air in the living room 2 and the liquid inside the radiant panel 10. For example, the radiant panel 10 is inserted between the ceiling boards 3 from the exterior side of the room, and is fixed to the ceiling board 3 via bolts (not shown) or the like. The material of the ceiling board 3 is not particularly limited, and may be, for example, a rock wool sound-absorbing panel.

[0013] The radiant panel 10 is preferably positioned so that it does not come into contact with the underside 4A of the upper structure 4 on the ceiling side of a predetermined floor of the building M, and further so that it does not come into contact with the exterior or side walls of the building M. This makes it possible to easily adjust the temperature of the air in the living room 2 space while reducing the amount of heat that escapes from the underside 4A of the upper structure 4 and the aforementioned wall surfaces due to thermal conduction from the radiant panel 10.

[0014] The radiant panel 10 is preferably sized to match the size (e.g., 600 mm x 600 mm) of the ceiling board 3 used in the system ceiling, or to achieve this size when multiple radiant panels 10 are combined. In this case, the existing ceiling board 3 can be replaced with the radiant panel 10, making it easy to install the air conditioning system 1.

[0015] The radiating panel 10 has a substantially rectangular shape in a plan view, and the length of the longitudinal direction of the radiating panel 10 matches the length of one side of the ceiling board 3. The length of the lateral direction of the radiating panel 10 is half the length of the longitudinal direction of the radiating panel 10. In other words, when two radiating panels 10 are lined up in the lateral direction of the radiating panels 10, the size matches the size of the ceiling board 3.

[0016] In this embodiment, the ratio (laying rate) of the total area of ​​the radiant panels 10 to the area of ​​the entire ceiling surface of the living room 2 is 50%. The laying rate can be changed appropriately depending on the heat demand of the living room 2, and is, for example, 25% or more. The laying rate may also be 100%, that is, the radiant panels 10 may form substantially the entire ceiling surface.

[0017] The radiant panel 10 is provided so that the underside 10A of the radiant panel 10 and the underside 3A of the ceiling board 3 are positioned on the same plane. This makes the boundary between the radiant panel 10 and the ceiling board 3 less noticeable when looking up at the ceiling surface from inside the living room 2, improving the design.

[0018] The outer shell of the radiating panel 10 is made of a resin material. In this case, the manufacturing cost of the radiating panel 10 can be reduced. Examples of resins that can be used to form the radiating panel 10 include high-density polyethylene (HDPE), low-density polyethylene (LDPE), polypropylene (PP), and silicone rubber. When the radiating panel 10 is made of a resin member, the radiating panel 10 can be manufactured by blow molding. This method is effective when molding a shape with a hollow structure, as in this embodiment.

[0019] The radiant panel 10 has a continuous space formed inside and contains a liquid such as water or a latent heat storage material. In other words, the outer wall of the container that contains the liquid forms the outer wall of the radiant panel 10, and at least a portion of the outer wall of the container forms the ceiling surface.

[0020] The latent heat storage material housed in the radiant panel 10 is a heat storage material that can change phase between solid and liquid. The latent heat storage material releases stored latent heat by changing from liquid to solid, and stores heat as latent heat by changing from solid to liquid.

[0021] When the air conditioning system 1 is used for cooling, the latent heat storage material used is, for example, a latent heat storage material that undergoes a phase change in the temperature range of 16°C or higher and 22°C or lower. It is also preferable that the latent heat storage material be non-flammable. Examples of latent heat storage materials include sodium sulfate decahydrate (NaSO·10HO), sodium acetate trihydrate (CHCOONa·3HO), disodium hydrogen phosphate dodecahydrate (NaHPO·12HO), sodium carbonate decahydrate (NaCO·10HO), and sodium thiosulfate pentahydrate (NaSO·5HO). Of these, sodium sulfate decahydrate is preferred.

[0022] The heat insulating material 30 is arranged to cover the upper surface 10B of the radiant panel 10. By arranging the heat insulating material 30, the cold radiation from the radiant panel 10 is prevented from escaping into the attic space. Examples of the heat insulating material 30 include urethane, phenol foam, and polystyrene foam. The heat insulating material 30 may also have a multi-layer structure.

[0023] A heat transfer medium circulated by a circulation device 50 flows through the pipe 40. The pipe 40 may be made of resin, but is preferably made of a thermally conductive metal such as copper or stainless steel. Furthermore, from the viewpoint of suppressing deterioration of the metal, it is more preferable to use a three-layer pipe (for example, an aluminum three-layer pipe) in which a metal film is sandwiched between resins. In this embodiment, the heat transfer medium flowing through the pipe 40 is hot or cold water.

[0024] 1 and 2, a portion of the piping 40 is held on the upper surface 10B of the radiating panel 10. More specifically, a portion of the piping 40 is housed, i.e., inserted into and held in, a groove 110 (see FIG. 3) formed on the upper surface 10B of the radiating panel 10 along the short direction of the radiating panel 10. The diameter of the piping 40 is approximately the same as the width of the groove 110 formed on the upper surface 10B of the radiating panel 10.

[0025] 2, the piping 40 includes two pipes 41 and 42. The pipe 41 is arranged between the two radiating panels 11 and 12, and the pipe 42 is arranged between the two radiating panels 13 and 14. The pipes 41 and 42 are connected by a pipe joint 43.

[0026] 2, the two pipes 41, 42 are arranged in a serpentine manner on the upper surface 10B of the radiant panel 10. By arranging the pipe 40 in a serpentine manner on the upper surface 10B of the radiant panel 10, the contact area between the pipe 40 and the upper surface 10B of the radiant panel 10 can be increased. This allows efficient heat exchange between the heat medium and the radiant panel 10 via the pipe 40.

[0027] The two pipes 41, 42 have a plurality of straight regions and a plurality of curved regions. The straight regions are arranged along the short-side direction of the radiating panel 10. As will be described in detail later, grooves 110 (see FIG. 3) formed on the upper surface 10B of the radiating panel 10 are formed at equal intervals in the longitudinal direction of the radiating panel 10. Therefore, the straight regions are arranged at equal intervals in the longitudinal direction of the radiating panel 10. The curved regions connect adjacent straight regions spaced apart from each other in the longitudinal direction of the radiating panel 10.

[0028] 2, the two pipes 41, 42 may be formed by arranging two pipe members having substantially the same shape by inverting or rotating them. In this case, the workability of assembling the pipe 40 to the radiant panel 10 is improved.

[0029] The circulation device 50 is connected to the piping 40 and circulates the heat medium flowing through the piping 40. The configuration of the circulation device 50 is not particularly limited as long as it can circulate cold and hot water through the piping 40 and exchange heat with the cold and hot water. The circulation device 50 is configured, for example, by a chiller, a cooling tower, etc. The location where the circulation device 50 is installed is not particularly limited, but in this embodiment, the circulation device 50 is installed on the roof of the building M. Note that at least some of the devices that make up the circulation device 50 may be installed indoors or underground.

[0030] Next, the radiating panel 10 will be described in detail with reference to Fig. 3 to Fig. 7. Fig. 3 is a perspective view of the radiating panel 10, Fig. 4 is a plan view of the radiating panel 10 seen from above, and Fig. 5 is a cross-sectional view taken along line AA in Fig. 4.

[0031] As shown in FIGS. 3 and 4, the radiating panel 10 has a substantially rectangular parallelepiped shape and has a lower surface 10A (first surface) placed on the living room side and an upper surface 10B (second surface) opposite the lower surface 10A.

[0032] As described above, the outer shell of the radiant panel 10 is made of a resin material, and the interior of the radiant panel 10 contains a liquid such as water or a latent heat storage material. The ignition point of the resin material making up the radiant panel 10 is higher than the boiling point of the liquid. This prevents the temperature of the radiant panel 10 from rising even when the temperature of the liquid rises, thereby preventing the radiant panel 10 from breaking or melting. In other words, if the ignition point of the resin material making up the radiant panel 10 is lower than the boiling point of the liquid, when the temperature of the liquid rises, the temperature of the radiant panel 10 may rise above the ignition point of the resin material, which may cause the radiant panel 10 to break or melt. The ignition point of the resin material is, for example, 100°C or higher, and preferably 110°C or higher.

[0033] Six protrusions 101 to 106 extending along the short-side direction of the radiating panel 10 are provided on the upper surface 10B of the radiating panel 10. The number of protrusions is not limited to six, and may be five or less, or seven or more.

[0034] The protrusions 101 to 106 each have a uniform width and are arranged at equal intervals in the longitudinal direction of the radiating panel 10. The width of the protrusions 101 to 106 is, for example, 10 mm or more and 100 mm or less, and may be 30 mm or more and 80 mm or less. The widths of the protrusions 101 to 106 may be different from one another. For example, the widths of the protrusions 101 and 106 arranged on the outer sides of the radiating panel 10 in the longitudinal direction may be smaller or larger than the widths of the protrusions 102 to 105 arranged toward the center of the radiating panel 10 in the longitudinal direction.

[0035] In this embodiment, the protrusions 101 to 106 do not extend to the outer edge of the radiating panel 10. In other words, the length of the protrusions 101 to 106 in the short direction of the radiating panel 10 is configured to be shorter than the length of the radiating panel 10. Note that at least a portion of the protrusions 101 to 106 may extend to the outer edge of the radiating panel 10.

[0036] In the short-side direction of the radiating panel 10, the length of the protrusions 101 and 106 is shorter than the length of the protrusions 102 to 105. The length of the protrusions 101 and 106 is, for example, 50% or more and 90% or less of the length of the protrusions 102 to 105.

[0037] When viewed from above, the total area of ​​the regions where the protrusions 101 to 106 are provided relative to the area of ​​the radiating panel 10 is, for example, 20% to 80%, or may be 30% to 70%. In this case, the durability of the radiating panel 10 can be ensured while a sufficient amount of liquid can be stored inside.

[0038] The height of the protrusions 101 to 106 is, for example, 10 mm or more and 100 mm or less, and may be 10 mm or more and 50 mm or less. The height of the protrusions 101 to 106 refers to the length along the thickness direction of the radiating panel 10 from an area of ​​the upper surface 10B of the radiating panel 10 where the protrusions 101 to 106 are not provided to the top of the protrusions 101 to 106.

[0039] A groove 110 extending along the short-side direction of the radiating panel 10 is provided in the center of each of the six protrusions 101 to 106. In other words, the grooves 110 are arranged at equal intervals in the long-side direction of the radiating panel 10. The grooves 110 are provided over the entire area of ​​each of the protrusions 101 to 106 in the extension direction.

[0040] As described above, the groove 110 has the function of accommodating and holding the piping 40 therein. The width of the groove 110 is approximately the same as the diameter of the piping 40. Furthermore, it is preferable that the groove 110 has a depth such that the bottom surface of the groove 110 is approximately the same as the height of the region of the upper surface 10B of the radiating panel 10 where the convex portions 101 to 106 are not provided. In other words, the bottom surface of the groove 110 and the region of the upper surface 10B of the radiating panel 10 where the convex portions 101 to 106 are not provided are located on the same plane.

[0041] 5, in this embodiment, the groove 110 has a U-shaped cross section. The shape of the groove 110 is not particularly limited as long as it can hold the pipe 40. For example, the groove 110 may have a shape that has a uniform width throughout the depth direction.

[0042] 3 and 4, the upper surface 10B of the radiating panel 10 is provided with an inclined region 120 that slopes toward the lower surface 10A toward the outer edge of the radiating panel 10. In this embodiment, the inclined region 120 is provided only at one end in the longitudinal direction of the radiating panel 10. Note that the inclined region 120 may also be provided at both ends in the longitudinal direction of the radiating panel 10. Furthermore, the inclined region 120 may also be provided at one or both ends in the lateral direction of the radiating panel 10.

[0043] The inclination angle of the inclined region 120 is, for example, 10° or more and 45° or less with respect to the lower surface 10A. As will be described in detail later, the inclined region 120 is provided with an internal pressure release section 130 that releases the internal pressure when the internal pressure of the radiating panel 10 reaches a predetermined level or more. By setting the inclination angle of the inclined region 120 with respect to the lower surface 10A to 10° or more and 45° or less, it is possible to prevent a large amount of liquid contained inside the radiating panel 10 from leaking out through the internal pressure release section 130 when the internal pressure release section 130 is activated.

[0044] In this embodiment, in a plan view of the radiating panel 10, the inclined region 120 is provided in the center in the short-side direction of the radiating panel 10. The length of the inclined region 120 in the short-side direction of the radiating panel 10 is, for example, 5% to 80% of the length of the radiating panel 10, and may be 10% to 50%.

[0045] The outer edge of the upper surface 10B of the radiating panel 10 is provided with protruding portions 140, 141 that protrude outward beyond the peripheral edge of the lower surface 10A of the radiating panel 10. When the radiating panel 10 is placed between the ceiling boards 3 (see FIG. 1), the lower surfaces of the protruding portions 140, 141 are adapted to overlap and engage with the upper surface of the ceiling board 3 and a batten (not shown). This allows the radiating panel 10 to be supported by the ceiling board 3 (see FIG. 1) and the batten, preventing the radiating panel 10 from falling through the gaps in the ceiling boards 3.

[0046] The shape and size of the protruding portions 140, 141 can be set appropriately according to the size and weight of the radiating panel 10 and the shape of the ceiling board 3. In this embodiment, the protruding portions 140, 141 are provided at both ends of the longitudinal direction of the radiating panel 10, and extend along the short side direction of the radiating panel 10. In the short side direction of the radiating panel 10, an inclined region 120 is disposed in the center of the protruding portion 140. In other words, the protruding portion 140 is divided by the inclined region 120.

[0047] The underside 10A of the radiating panel 10 is provided with a plurality of recesses 150 recessed toward the inside of the radiating panel 10. Providing the recesses 150 improves the pressure resistance strength of the radiating panel 10. As a result, even if the internal pressure changes due to a phase change of the liquid inside the radiating panel 10, deformation of the radiating panel 10 can be suppressed.

[0048] In this embodiment, the recesses 150 are classified into a first recess 151 provided at a position overlapping the groove 110, a second recess 152 provided at a position where the protrusions 101 to 106 are not provided, and two outer recesses 153 provided at the corners. As will be described in detail later, the outer recess 153 is provided with a fall prevention mechanism for preventing the radiating panel 10 from falling off the ceiling board 3.

[0049] The first recesses 151 and the second recesses 152 are arranged alternately in the longitudinal direction of the radiating panel 10. Furthermore, the second recesses 152 are arranged at intermediate positions between adjacent first recesses 151 in the longitudinal direction of the radiating panel 10. In this embodiment, three first recesses 151 and three second recesses 152 are arranged at predetermined intervals along the short-side direction of the radiating panel 10.

[0050] The first recesses 151 and the second recesses 152 are arranged in a staggered pattern. By arranging the first recesses 151 and the second recesses 152 in a staggered pattern, the pressure resistance strength of the radiating panel 10 can be further improved.

[0051] The first recess 151 and the second recess 152 have a circular shape in a plan view and are recessed toward the inside of the radiating panel 10. The first recess 151 and the second recess 152 may have a rectangular shape in a plan view. In this embodiment, the first recess 151 and the second recess 152 have the same shape.

[0052] The wall surfaces of the first recesses 151 and the second recesses 152 are inclined so that the diameter of the recesses 150 gradually decreases toward the inside of the radiating panel 10. The number and size of the first recesses 151 and the second recesses 152 can be set appropriately depending on the size and weight of the radiating panel 10.

[0053] It is preferable that the first recess 151 abuts against the bottom surface of the groove 110, and the second recess 152 abuts against the upper surface 10B of the radiating panel 10. In this case, the pressure resistance strength of the radiating panel 10 is further improved.

[0054] In this embodiment, the recess 150 is provided only on the lower surface 10A of the radiating panel 10, but the recess 150 may be provided on the upper surface 10B in addition to the lower surface 10A of the radiating panel 10. In this case, the recess 150 provided on the upper surface 10B of the radiating panel 10 may be provided at a position overlapping the recess 150 provided on the lower surface 10A of the radiating panel 10 in a plan view of the radiating panel 10.

[0055] Next, the internal pressure release section 130 provided in the radiating panel 10 will be described in detail with further reference to Fig. 6. Fig. 6 is a cross-sectional view taken along line BB in Fig. 4, showing an enlarged view of the vicinity of the internal pressure release section 130.

[0056] 3 and 6, the inclined region 120 of the radiating panel 10 is provided with an internal pressure release section 130 that releases internal pressure when the internal pressure of the radiating panel 10 reaches or exceeds a predetermined level. In this embodiment, the internal pressure release section 130 is composed of a through hole 131 provided in the inclined region 120 and a sealing plug 132 that seals the through hole 131. When the internal pressure of the radiating panel 10 reaches or exceeds a predetermined level, the internal pressure release section 130 releases the internal pressure by removing the sealing plug 132 from the through hole 131.

[0057] The through hole 131 has a circular shape in a plan view. The size of the through hole 131 can be set appropriately depending on the size of the radiating panel 10, and has a diameter of, for example, 10 mm or more and 50 mm or less. The through hole 131 also functions as a liquid inlet for injecting liquid into the inside of the radiating panel 10.

[0058] The sealing plug 132 is made of an elastic material such as silicone rubber. The internal pressure that activates the internal pressure release unit 130 can be adjusted by adjusting the strength and shape of the sealing plug 132. For example, by reducing the strength of the sealing plug 132, the sealing plug 132 becomes more easily deformed, so that the internal pressure release unit 130 can be activated even at a lower internal pressure.

[0059] In this embodiment, the sealing plug 132 has a cylindrical tube portion 133 and expanded diameter portions 134 that are provided on both axial sides of the tube portion 133 and have an outer diameter larger than that of the tube portion 133. When the sealing plug 132 is attached to the through hole 131, one of the expanded diameter portions 134 is disposed inside the radiating panel 10, and the other of the expanded diameter portions 134 is disposed outside the radiating panel 10. Note that the sealing plug 132 does not have to have the expanded diameter portions 134.

[0060] The outer diameter of the expanded diameter portion 134 is, for example, 1.1 to 2.0 times the outer diameter of the cylindrical portion 133. Increasing the outer diameter of the expanded diameter portion 134 makes it difficult for the sealing plug 132 to come off the through-hole 131. In other words, the internal pressure required to operate the internal pressure release portion 130 increases.

[0061] Next, a description will be given of a fall prevention mechanism for the radiating panel 10 with further reference to Fig. 7. Fig. 7 is a cross-sectional view taken along line CC in Fig. 4, and is a cross-sectional view of an area where a fastener 160 serving as a fall prevention mechanism for the radiating panel 10 is provided.

[0062] 4 and 7, outer recesses 153 are provided on the underside 10A of the corners of the radiating panel 10. In this embodiment, the outer recesses 153 are provided only on two corners on one side in the short side direction out of the four corners of the radiating panel 10. Note that the outer recesses 153 may be provided on the underside 10A of each of the four corners of the radiating panel 10.

[0063] 7, an opening 154 that connects the upper and lower spaces of the radiating panel 10 is provided in the center of the bottom surface 153A of the outer recess 153. A wire 161, which will be described later, passes through the opening 154. The opening 154 has, for example, a circular shape in a plan view and an outer diameter that is slightly larger than the outer diameter of the wire 161.

[0064] As shown in Figure 7, a fastener 160 is housed inside the outer recess 153. The fastener 160 is connected to one end of a wire 161, the other end of which is fixed to the attic space. By arranging the fastener 160 inside the outer recess 153, the radiating panel 10 is supported by the fastener 160, preventing the radiating panel 10 from falling off the ceiling board 3.

[0065] The fastener 160 has, for example, a disk shape. The lower surface of the fastener 160 and the lower surface 10A of the radiating panel 10 are preferably arranged to be located on the same plane. This makes the boundary between the radiating panel 10 and the fastener 160 less noticeable when looking up at the ceiling surface from inside the living room 2, improving the design.

[0066] The fastener 160 may be made of a metal whose main component is iron or the like, or may be made of a resin.

[0067] As described above, the outer shell of the radiant panel 10 as a building component of the present invention is made of a resin material, and the ignition point of the resin material is higher than the boiling point of the liquid contained in the radiant panel 10. The radiant panel 10 is provided with an internal pressure release section 130 that releases internal pressure when the internal pressure of the radiant panel 10 reaches a predetermined level or higher. This makes it possible to prevent damage or melting of the radiant panel 10 even if the temperature of the liquid rises. As a result, a highly reliable air conditioning system 1 can be provided.

[0068] The above-described embodiment can be modified as appropriate within the scope of the present invention. For example, in the above-described embodiment, the surface of the building component that faces the living room is a radiant panel that forms the ceiling surface of the living room, but the form of the building component is not limited to this. For example, the building component of the present invention may be placed above a component (ceiling material) that forms the top surface, and the underside of the building component may not be exposed to the interior side of the room. Note that if the underside of the building component forms the ceiling surface of the living room and is exposed to the interior side, heat is easily transferred between the air in the living room 2 and the liquid inside the radiant panel 10.

[0069] Furthermore, in the above embodiment, the internal pressure release section 130 is configured with a through hole 131 and a sealing plug 132 that seals the through hole 131. However, the configuration of the internal pressure release section 130 is not limited to this, as long as it can release the internal pressure when the internal pressure of the building component reaches a predetermined level or higher. For example, the internal pressure release section 130 may be a thin-walled section that is thinner than other sections. This thin-walled section functions as an easily deformable section that deforms or breaks when the internal pressure reaches a predetermined level or higher, and the internal pressure is released by the deformation or breakage of this thin-walled section. Furthermore, the internal pressure release section 130 may be configured with a valve that allows ventilation but does not leak liquid, like a breather cap. [Explanation of symbols]

[0070] 1 air conditioning system, 2 living room, 3 ceiling board, 3A underside, 4 upper body, 4A underside, 10, 11, 12, 13, 14 radiant panel, 10A underside (first surface), 10B upper surface (second surface), 30 insulation material, 40, 41, 42 piping, 43 piping joint, 50 circulation device, 101, 102, 103, 104, 105, 106 convex portion, 110 groove, 120 inclined area, 130 internal pressure release portion, 131 through hole, 132 sealing plug, 133 cylindrical portion, 134 expanded diameter portion, 140, 141 protruding portion, 150 recess, 151 first recess, 152 second recess, 153 outer recess, 153A bottom surface, 154 opening, 160 Fasteners, 161 Wire

Claims

1. A building component used for radiant air conditioning that contains a liquid inside and utilizes heat exchange between the air in a room and the liquid, The outer shell of the building component is made of a resin material, the resin material has an ignition point higher than the boiling point of the liquid; A building component is provided with an internal pressure release section that releases the internal pressure of the building component when the internal pressure of the building component reaches a predetermined level or higher.

2. The building component has a substantially rectangular parallelepiped shape and includes a first surface disposed on the living room side and a second surface opposite to the first surface, The building component according to claim 1 , wherein the second surface is provided with an inclined region that slopes toward the first surface toward an outer edge of the building component.

3. The building component according to claim 2 , wherein the internal pressure release portion is provided in the inclined region.

4. 2. The building element according to claim 1, further comprising a groove for accommodating a pipe through which a heat transfer medium flows.

5. The building component has a substantially rectangular shape in a plan view of the building component, The building element according to claim 4 , wherein the groove extends along a lateral direction of the building element.

6. The building component according to claim 1, wherein one surface of the building component has a recess recessed toward the interior of the building component, and the one surface abuts against the other surface opposite the one surface.

7. The building element according to claim 1 , wherein the liquid is water or a latent heat storage material.

8. The building element according to claim 7, wherein the latent heat storage material is sodium sulfate decahydrate.

9. The building component according to claim 1 , wherein a surface of the building component disposed on the living room side constitutes a ceiling surface of the living room.

10. The building member according to any one of claims 1 to 9, a pipe at least a portion of which is arranged in contact with the building component and through which a heat transfer medium flows; a circulation device that circulates the heat medium; Equipped with an air conditioning system.

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