Radiant panels and heating / cooling systems

Abstract

The present invention provides a radiant panel and a heating and cooling system using the same, which can suppress cost increases and improve assembly workability. [Solution] The partition surface that divides the air-conditioning or heating room is provided with a plate-shaped front panel portion 14 that transmits heat, and a plate-shaped back panel portion 15 that overlaps the front panel portion 14 on the opposite side of the air-conditioning room. The front panel portion 14 has multiple linear air circulation grooves 16 formed at intervals on the surface in contact with the back panel portion 15, recessed in a direction away from the back panel portion 15. The back panel portion 15 closes the air circulation grooves 16 from below so that temperature-controlled air can flow through them, and has multiple through holes for air circulation formed at positions corresponding to the air circulation grooves 16.

Description

Technical Field

[0001] The present invention relates to a radiation panel and a heating and cooling system, and particularly to a radiation panel and a heating and cooling system that radiate air as a heat medium.

Background Art

[0002] As such a radiation panel, conventionally, for example, there is one described in Patent Document 1. That is, it has a plate-shaped upper plate member located on the heating and cooling room side and a lower plate member located on the side opposite to the heating and cooling room side of the upper plate member. And the lower plate member is made of particle board or the like, and a plurality of air flow grooves are formed at intervals on the surface contacting the upper plate member. On the other hand, the upper plate member has a flat plate shape and is configured using a metal plate material as a material with high thermal conductivity.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

[0007] The characteristic configuration of the radiant panel according to the present invention comprises a plate-shaped front panel portion that transmits heat to the partition surface that divides a heating or cooling room where heating or cooling is performed, and a plate-shaped back panel portion that overlaps the front panel portion on the opposite side of the heating or cooling room. The front panel portion has multiple air circulation grooves formed at intervals on the surface in contact with the back panel portion, recessed in a direction away from the back panel portion, and the back panel portion closes the air circulation grooves from below so that temperature-controlled air can flow through them, and has multiple through holes for air circulation formed at positions corresponding to the air circulation grooves. The front panel portion is composed of an assembly of multiple unit panels, and the assembly is attached to the back panel portion, which is a single plate material. It lies in that point.

[0008] According to the present invention, an air circulation groove is formed on the surface of the front panel that is in contact with the back panel, and the back panel blocks the air circulation groove from below. The temperature control effect of the temperature-controlled air circulating through the air circulation groove is transmitted directly from the front panel to the heating and cooling chamber. As a result, there is no need to separately attach, for example, a metal plate to the heating and cooling chamber side of the front panel. Furthermore, the front panel can be made of a material that is easy to process and capable of heat transfer, such as a synthetic resin. Therefore, it is possible to provide a radiant panel that can suppress cost increases and improve processability and workability during assembly. Furthermore, this configuration makes it easier to manufacture by miniaturizing the unit panels, and by forming the front panel section with an assembly of multiple unit panels, assembly workability can be further improved. Moreover, while manufacturing large radiant panels by integral molding requires large molds, which not only increases costs but also makes it difficult to work with and transport, by combining multiple unit panels, radiant panels of various sizes can be easily created.

[0009] In the present invention, the front panel portion preferably has two first air circulation grooves extending along a predetermined direction and a second air circulation groove extending along a direction intersecting the predetermined direction, and a plurality of the second air circulation grooves are connected to the first air circulation grooves, and the second air circulation grooves are connected to two of the first air circulation grooves, and the back panel portion preferably has the through holes formed at positions corresponding to the first air circulation grooves.

[0010] In this configuration, temperature-controlled air flows from the through-hole into one first air channel, then is distributed to multiple second air circulation channels, and heat exchange (cooling or heating) to the heating / cooling room takes place as the air circulates through each of these channels. After circulating through the multiple second air circulation channels, the temperature-controlled air is collected in the other first air channel and discharged to the outside through the through-hole. By configuring it in this way, heat exchange (cooling or heating) to the heating / cooling room can be efficiently performed by increasing the number of second air circulation channels while keeping the number of through-holes for supplying and discharging temperature-controlled air to a minimum.

[0011]

[0012]

[0013] In the present invention, it is preferable that the back panel portion has at least one through-hole formed in the region corresponding to each of the plurality of unit panels.

[0014] This configuration allows for precise supply of temperature-controlled air to each unit panel through the through-holes, and enables the discharge of the temperature-controlled air after heat exchange through the through-holes from each unit panel. Furthermore, it makes it easier to identify the installation position of the through-holes on the back panel during assembly, and allows for uniform pressure distribution among multiple second air circulation grooves. As a result, the entire radiant panel can efficiently perform its heating and cooling functions.

[0015] In the present invention, the unit panel has a first air circulation groove extending along a predetermined direction and a second air circulation groove extending along a direction intersecting the predetermined direction, and it is preferable that a plurality of the second air circulation grooves are connected to the first air circulation groove, and that the second air circulation groove of one unit panel is connected to the second air circulation groove of an adjacent unit panel.

[0016] In this configuration, when temperature-controlled air is supplied to the first air circulation channel in one unit panel, the temperature-controlled air flows from the first air circulation channel to the second air circulation channel. Then, the temperature-controlled air is supplied from the second air circulation channel in one unit panel to the second air circulation channel in an adjacent unit panel, and further flows to the first air circulation channel.

[0017] As a result, it is possible to share a single unit panel with adjacent unit panels that have the same configuration, while making it possible to lengthen the second air circulation channel through which heat exchange (cooling or heating) to the heating / cooling room takes place. Therefore, by creating unit panels with the same configuration, it is possible to efficiently perform heating and cooling functions while reducing the effort required for manufacturing.

[0018] In the present invention, it is preferable that the through-holes are formed at positions corresponding to the first air circulation groove of one unit panel and at positions corresponding to the first air circulation groove of a unit panel adjacent to that unit panel.

[0019] In this configuration, when temperature-controlled air is supplied from a through-hole formed at a position corresponding to the first air circulation groove of one unit panel, it flows from the first air circulation groove to the second air circulation groove in that unit panel, and then flows to the second air circulation groove of the unit panel adjacent to that unit panel, before flowing to the first air circulation groove. The temperature-controlled air can then be discharged to the outside from a through-hole formed at a position corresponding to the first air circulation groove of the adjacent unit panel. Therefore, temperature-controlled air can be efficiently circulated to multiple connected unit panels.

[0020] In the present invention, it is preferable that the unit panel includes a one-sided closed type unit panel in which one end of the first air circulation groove is closed, and a other-sided closed type unit panel in which the other end of the first air circulation groove is closed.

[0021] According to this configuration, by connecting both unit panels so that the other end of the first air circulation groove in the one-closed type unit panel communicates with the one end of the first air circulation groove in the other-closed type unit panel, the first air circulation groove in the one-closed type unit panel and the first air circulation groove in the other-closed type unit panel communicate with each other, and a closed space with both ends closed is formed. As a result, the temperature-controlled air supplied from the through hole is supplied to the second air circulation grooves of both unit panels through the closed space that is communicatively connected. Therefore, the temperature-controlled air supplied from the through hole can effectively contribute to the air conditioning function without leaking to the outside.

[0022] In the present invention, as the unit panel, it is preferable to include a one-closed type unit panel in which one end of the first air circulation groove is closed, an other-closed type unit panel in which the other end of the first air circulation groove is closed, and an open type unit panel in which both the one end and the other end of the first air circulation groove are open.

[0023] According to this configuration, by connecting these unit panels so that the other end of the first air circulation groove in the one-closed type unit panel communicates with one of the ends in the open type unit panel, and further, the other end in the open type unit panel communicates with the one end of the first air circulation groove in the other-closed type unit panel, the first air circulation groove in the one-closed type unit panel, the first air circulation groove in the open type unit panel, and the first air circulation groove in the other-closed type unit panel communicate with each other, and a closed space with both ends closed is formed.

[0024] By configuring in this way, the closed space through which the temperature-controlled air supplied from the through hole flows becomes a long range over the entire width of the plurality of unit panels, and even in a large and wide floor or wall in a large air-conditioned room having a large area, efficient air conditioning can be performed.

[0025] In the present invention, it is preferable that a recessed space is formed in a region where no air circulation groove is formed on the surface of the front panel portion that contacts the back panel portion, the recessed space recessing in a direction away from the back panel portion and not communicating with the air circulation groove.

[0026] According to this configuration, in the region of the front panel portion that does not contribute to the circulation of temperature-controlled air, a recessed space that does not communicate with the air circulation groove is formed. Therefore, in the front panel portion where the thickness becomes large to form the air circulation groove, the region that does not contribute to the circulation of temperature-controlled air can be made thin without forming a useless thick portion, thereby reducing the weight of the entire front panel portion and improving the assembly workability.

[0027] In the present invention, it is preferable that a plurality of recesses are formed on the surface of the front panel portion on the side of the heating and cooling chamber, the recesses entering from the side of the heating and cooling chamber toward the opposite side.

[0028] According to this configuration, for example, when connecting the front panel portion and the back panel portion using fasteners such as screws and bolts, by fastening using a fastener inside the recess, it is possible to avoid the head of the fastener protruding upward from the surface of the front panel portion on the side of the heating and cooling chamber after fastening. As a result, a floor material or the like can be favorably arranged on the surface of the front panel portion on the side of the heating and cooling chamber.

[0029] A characteristic configuration of the heating and cooling system according to the present invention is a heating and cooling system provided with the above-described radiation panel, the heating and cooling system including air supply means for supplying temperature-controlled air whose temperature has been adjusted to the radiation panel, an air supply flow path for supplying the temperature-controlled air supplied from the air supply means to the radiation panel on the side opposite to the heating and cooling chamber with respect to the radiation panel, and an air discharge flow path for guiding the discharge of the temperature-controlled air discharged from the radiation panel, and flow path forming means for forming the air discharge flow path.

[0030] In this configuration, temperature-controlled air is supplied from the air supply means. The temperature-controlled air is supplied to the radiant panel via the air supply channel of the flow path forming means. The temperature-controlled air discharged from the radiant panel is returned to the air supply means via the air discharge channel of the flow path forming means. In this way, the temperature-controlled air is guided to flow through the radiant panel, and the radiant panel can effectively air-condition the heating and cooling room. [Brief explanation of the drawing]

[0031] [Figure 1] This is a longitudinal cross-sectional side view showing the schematic configuration of the heating and cooling system. [Figure 2] This is a partially cutaway perspective view showing the general configuration of the heating and cooling system. [Figure 3] This is a perspective view showing the arrangement of the radiant panels. [Figure 4] This is a simplified, partially cutaway perspective view of a radiant panel. [Figure 5] This is a simplified, partially cutaway plan view of a radiant panel. [Figure 6] This is a cross-sectional view taken along the line VI-VI in Figure 5. [Figure 7] This is a cross-sectional view taken along line VII-VII in Figure 5. [Figure 8] This is a plan view of the radiant panel. [Figure 9] This is a bottom view of the radiant panel. [Figure 10] This is a side view of the radiant panel. [Figure 11] This is a plan view of the unit panel. [Figure 12] This is a bottom view of the unit panel. [Figure 13] This is a side view of a unit panel (open-type unit panel) viewed from direction A. [Figure 14] This is a side view of a unit panel (open-type unit panel) from a view in direction B. [Figure 15] This is a cross-sectional view of a unit panel (open-type unit panel). [Figure 16] On the other hand, this is a bottom view of a closed-type unit panel. [Figure 17]This is a side view of a closed-type unit panel. [Figure 18] On the other hand, this is a bottom view of a closed-type unit panel. [Figure 19] On the other hand, this is a side view of a closed-type unit panel. [Figure 20] This is a plan view showing the airflow conditions of the radiant panel. [Figure 21] This is a plan view showing the airflow state of a radiant panel in another embodiment. [Figure 22] This is a plan view showing the airflow state of a radiant panel in another embodiment. [Figure 23] This is a plan view showing the airflow state of a radiant panel in another embodiment. [Figure 24] This is a plan view showing the airflow state of a radiant panel in another embodiment. [Figure 25] This is a plan view showing the airflow state of a radiant panel in another embodiment. [Figure 26] This is a plan view showing the airflow state of a radiant panel in another embodiment. [Modes for carrying out the invention]

[0032] Embodiments of the radiant panel and heating / cooling system according to the present invention will be described below with reference to the drawings. It should be noted that the present invention is not limited to the following embodiments, and various modifications are possible without departing from the spirit of the invention.

[0033] The schematic configuration of a heating and cooling system according to an embodiment of the present invention will be described. The heating and cooling system 1 according to this embodiment is a system that cools or heats the floor of a heating and cooling room R that is to be heated or cooled, and performs heating or cooling using radiant heat from the cooled or heated floor.

[0034] Figures 1, 2, and 3 are diagrams illustrating the schematic configuration of the heating and cooling system 1. Figure 1 is an overall longitudinal cross-sectional side view including the heating and cooling room R, which is the target of heating and cooling (hereinafter referred to as "heating and cooling"). Figure 2 is a perspective view showing the configuration of the underside of the floor surface of the heating and cooling room R. Figure 2 shows the arrangement of the radiant panels 5, which will be described later, by cutting out a portion of the finishing floor material 2 (including the subfloor plywood 3 and flooring material 4) on the floor surface of the heating and cooling room R. Figure 3 is a perspective view showing the arrangement of the radiant panels.

[0035] The heating and cooling system 1 includes a radiant panel 5 positioned beneath the floor of the heating and cooling room R to perform heating and cooling of the room R by heat exchange, an air conditioner 6 as an air supply means to supply temperature-controlled air SA to the radiant panel 5, a partition plate 7 as a flow path forming means positioned beneath the radiant panel 5, i.e., on the opposite side of the heating and cooling room R from the radiant panel 5, to form a flow path for the temperature-controlled air SA, and support legs 10 that support the radiant panel 5 and supplementary panel 9 at a distance from the building floor 8 such as a concrete slab. In this embodiment, a general-purpose room air conditioner is used as the air conditioner 6 and is positioned on the ceiling of the heating and cooling room R. As shown in Figures 1 and 2, the temperature-controlled air SA supplied from the air conditioner 6 is guided to flow under the floor by a duct D that extends vertically along the wall surface of the heating and cooling room R.

[0036] The space partitioned by the partition plate 7 forms an air supply channel 11 that supplies temperature-controlled air SA supplied from the air conditioner 6 to the radiant panel 5, and an air discharge channel 12 that guides the temperature-controlled air SA discharged from the radiant panel 5. In other words, as shown in Figure 3, the area partitioned vertically by the building floor 8, the building walls 13, the radiant panel 5 and the supplementary panel 9 is divided by the partition plate 7 into a space that constitutes the air supply channel 11 and a space that constitutes the air discharge channel 12.

[0037] As shown in Figure 3, the radiant panels 5 are positioned above the building floor 8 by support legs 10, and the finishing floor material 2, consisting of a base plywood 3 and flooring material 4, is placed on the upper surface of the radiant panels 5. Note that the floor finishing material is not limited to flooring material 4; a wide range of floor finishing materials such as floor tiles or sheet flooring may also be used.

[0038] [Radiant Panel] Let's explain radiant panel 5. Figures 4 to 7 show the schematic configuration of radiant panel 5. These figures are schematic for clarity. The specific structure of the radiant panel will be explained later.

[0039] Figure 4 is a perspective view of the radiant panel 5 with a portion of the surface cut out. Figure 5 is a plan view of the radiant panel 5 with the entire surface cut out. Figure 6 is a cross-sectional view taken along line VI-VI in Figure 5. Figure 7 is an enlarged view of a portion of the cross-sectional view taken along line VII-VII in Figure 5.

[0040] The radiant panel 5 comprises a plate-shaped front panel portion 14 that transfers heat to the partition surface that divides the heating and cooling room R, and a plate-shaped back panel portion 15 that overlaps the front panel portion 14 on the opposite side of the heating and cooling room R. The front panel portion 14 has multiple linear air circulation grooves 16 formed at intervals on the surface in contact with the back panel portion 15, recessed in a direction away from the back panel portion 15.

[0041] The rear panel section 15 closes the air circulation groove 16 from below so that the temperature-controlled air SA can flow through it, and multiple through-holes 17 for air circulation are formed at positions corresponding to the air circulation groove 16. An even number of through-holes 17 are provided. Because an even number of through-holes 17 are provided in this way, the number of through-holes 17 for supplying the temperature-controlled air SA (through-holes 17a on one end, described later) and the number of through-holes 17 for discharging the temperature-controlled air after heat exchange (cooling or heating) has been performed (through-holes 17b on the other end, described later) can be the same, so that the temperature-controlled air SA can flow smoothly without stagnation, thereby improving the efficiency of cooling and heating.

[0042] On the front panel portion 14, first air circulation grooves 16a are formed on both sides of the surface in contact with the back panel portion 15 in the direction along the reference numeral B in Figure 5 (hereinafter referred to as direction B), extending along the direction along the reference numeral A in Figure 5 (hereinafter referred to as direction A) (an example of a predetermined direction). Furthermore, a second air circulation groove 16b is formed extending along direction B (an example of a direction intersecting the predetermined direction) across both first air circulation grooves 16a. The first air circulation grooves 16a and the second air circulation grooves 16b constitute the air circulation groove 16 described above. In other words, the first air circulation grooves 16a and the second air circulation grooves 16b function as the air circulation groove 16. Therefore, the front panel portion 14 has, as the air circulation groove 16, two first air circulation grooves 16a extending along the predetermined direction and a second air circulation groove 16b extending along a direction intersecting the predetermined direction, and a plurality of second air circulation grooves 16b are connected to the first air circulation grooves 16a.

[0043] The first air circulation groove 16a is a wide groove, and the second air circulation groove 16b is a narrow groove that is narrower than the width of the first air circulation groove 16a. In addition, multiple (18 in the example shown in Figure 5) second air circulation grooves 16b are connected to one first air circulation groove 16a. In this embodiment, the second air circulation grooves 16b are formed to have a substantially square cross-section as shown in Figure 7, etc., but are not limited to this shape.

[0044] Multiple through holes 17 for air circulation are formed in the back panel portion 15 at positions corresponding to the first air circulation groove 16a. Three through holes 17 (hereinafter referred to as one-end through holes 17a) are formed at intervals in the first air circulation groove 16a located on one end in direction B, and three through holes 17 (hereinafter referred to as other-end through holes 17b) are formed at intervals in the first air circulation groove 16a located on the other end in direction B, for a total of six through holes 17.

[0045] As shown in Figure 20, the radiant panel 5 is positioned above the air supply channel 11 and the air discharge channel 12. One end through-hole 17a is located above the air supply channel 11, and the other end through-hole 17b is located above the air discharge channel 12. Therefore, the temperature-controlled air SA supplied through the air supply channel 11 flows through the one end through-hole 17a to the first air circulation groove 16a on one end of the radiant panel 5, then is distributed from the first air circulation groove 16a to a plurality of second air circulation grooves 16b, flows through the other end first air circulation groove 16a to the other end through-hole 17b to the air discharge channel 12, and is discharged into the room from the floor outlet 18 (see Figures 1 and 2) formed in the floor of the heating and cooling room R. Therefore, the temperature-controlled air SA supplied from the air conditioner 6 can be efficiently and efficiently circulated through the through-holes 17 formed in the radiant panel 5, in the order of air supply channel 11, air circulation groove 16 within the radiant panel 5, and air discharge channel 12.

[0046] Next, the specific structure of the radiant panel 5 will be described with reference to Figures 8 to 19. Figure 8 is a plan view of the radiant panel 5, Figure 9 is a bottom view of the radiant panel 5, and Figure 10 is a side view of the radiant panel 5. The front panel section 14 is composed of a collection of multiple (six in the example shown) unit panels 19. Each unit panel 19 of the front panel section 14 is square in shape and is fixed to the back panel section 15 by screws (not shown) at its four corners.

[0047] The front panel portion 14 is formed by integral molding of a synthetic resin material such as polypropylene resin (PP). The front panel portion 14 is not limited to polypropylene resin; it may be formed from other types of synthetic resin materials as long as it allows for heat exchange between the temperature-controlled air SA and the air in the heating / cooling room R. On the other hand, the back panel portion 15 is formed from particleboard. The back panel portion 15 is not limited to particleboard; it may be formed from molded products such as plywood, resin board, expanded polystyrene, polyurethane foam, or wood fiberboard (MDF).

[0048] The back panel section 15 is made of a single sheet material and has the aforementioned multiple through holes 17 formed therein. The back panel section 15 has at least one through hole 17 formed in the area corresponding to the multiple unit panels 19.

[0049] The front panel section 14 shown in Figure 8 consists of a total of six unit panels 19, with three unit panels 19 arranged along the direction indicated by the reference numeral A in Figure 8 (hereinafter referred to as direction A), and two unit panels 19 arranged along the direction indicated by the reference numeral B in Figure 8 (hereinafter referred to as direction B). The back panel section 15 is made of a single plate material having an area corresponding to all the regions of the six unit panels 19.

[0050] Figures 11 to 15 show the unit panels 19 that make up the front panel section 14. Each unit panel 19 has a first air circulation groove 16a extending along direction A, which is a predetermined direction, and a second air circulation groove 16b extending along direction B, which is a direction intersecting the predetermined direction. Multiple second air circulation grooves 16b are connected to the first air circulation groove 16a. As described above, the second air circulation grooves 16b are connected to the second air circulation grooves 16b of an adjacent unit panel 19 (see Figure 5).

[0051] The unit panel 19 is formed by integral molding of a synthetic resin material and is a square-shaped plate having a predetermined width (for example, about 300 mm) in both length and width dimensions and a predetermined thickness (about 12 mm).

[0052] The unit panel 19 is processed and molded into a thin plate shape throughout, so that the thickness is small even in areas where the first air circulation groove 16a and the second air circulation groove 16b are not formed. In other words, as shown in Figure 15 (cross-sectional view), in the area of ​​the surface of the unit panel 19 that is in contact with the back panel portion 15, where the air circulation groove 16 is not formed, a recessed space 20 is formed that is recessed in a direction away from the back panel portion 15 and does not communicate with the air circulation groove 16. The area where this recessed space 20 is formed is formed in a thin-walled manner.

[0053] In the unit panel 19, the area where heat exchange takes place between the finishing floor material 2 and the temperature-controlled air SA, that is, the bottom of the air circulation groove 16, is set to a thickness sufficient for heat exchange (for example, about 1 to 5 mm, preferably about 2 mm).

[0054] As shown in Figure 11, etc., the unit panel 19 has multiple recesses 21 formed on the side facing the heating and cooling room R that extend inward from the side facing the heating and cooling room R. These recesses 21 include connecting recesses 22 located at the four corners and groove-shaped recesses 23 located along the surrounding edges.

[0055] The connecting recess 22 is a circular recess in plan view, and a hole 22a is formed in the recessed surface below through which a screw is inserted. The screw is inserted through the hole 22a and fixed to the back panel 15. In this way, the unit panel 19 can be fixed using screws at the four corners, and moreover, the screw heads fit into the connecting recess 22 and do not protrude. The groove-shaped recess 23 is a straight recessed groove that extends along the edge of the unit panel 19, with a groove 23a formed on the surface that is recessed downwards. The bottom of the groove 23a is thin-walled, and the radiant panel 5 can be fixed to the support leg 10 by using tapping screws or the like to penetrate the bottom of the groove 23a and the back panel portion 15. In this way, the unit panel 19 can be securely fixed using screws in the middle of the edge of the unit panel 19, and the screw heads do not protrude as they fit into the groove-shaped recess 23. As a result, it is easy to attach floor finishing material (flooring material, etc.) 2 to the upper surface of the front panel portion 14.

[0056] There are several types of unit panels 19 with different shapes. Specifically, there are one-sided closed unit panels 19A in which one end of the first air circulation groove 16a is closed, another-sided closed unit panels 19B in which the other end of the first air circulation groove 16a is closed, and an open type unit panel 19C in which both one end and the other end of the first air circulation groove 16a are open.

[0057] The unit panel 19 shown in Figures 11 to 15 is an open-type unit panel 19C. In this open-type unit panel 19C, both ends of the first air circulation groove 16a are open, so the temperature-controlled air SA can enter and exit from both ends of the first air circulation groove 16a. This open-type unit panel 19C is used as one of the two unit panels 19 located in the middle of the six unit panels 19 shown in Figure 8 in direction A. The second air circulation groove 16b of the open-type unit panel 19C and the second air circulation groove 16b of the open-type unit panel 19C adjacent to the said unit panel 19C along direction B are connected facing each other.

[0058] Figures 16 and 17 show a unit panel 19A with one side closed. In this unit panel 19A, one end of the first air circulation channel 16a is closed by a wall 24. With this configuration, temperature-controlled air SA cannot enter or exit from one end of the first air circulation channel 16a. This unit panel 19A is used as one of the two unit panels 19 located on one side in direction A among the six unit panels 19 shown in Figure 8.

[0059] Figures 18 and 19 show a unit panel 19B with the other side closed. In this unit panel 19B, the other side end of the first air circulation channel 16a is closed by a wall 25. With this configuration, temperature-controlled air SA cannot enter or exit from the other side end of the first air circulation channel 16a. This unit panel 19B with the other side closed is used as one of the two unit panels 19 located on the other side in direction A among the six unit panels 19 shown in Figure 8. As shown in Figure 8, the unit panel 19B with the other side closed is positioned adjacent to the unit panel 19A with the one side closed along direction B. Their second air circulation channels 16b are then connected to each other.

[0060] As shown in Figure 9, the back panel portion 15 has one through-hole 17 for each unit panel 19. The through-holes 17 are formed in locations corresponding to the first air circulation groove 16a. Specifically, there are three through-holes 17a on one end and three through-holes 17b on the other end, for a total of six holes. The three through-holes 17a on one end and the three through-holes 17b on the other end are all the same size.

[0061] As described above, an air supply channel 11 is formed below the through-hole 17a at one end, and an air discharge channel 12 is formed below the through-hole 17b at the other end. Since the three types of unit panels 19A, 19B, and 19C are arranged along direction A, the temperature-controlled air SA supplied through the through-hole 17 is supplied to the first air circulation groove 16a and the second air circulation groove 16b without leaking out, allowing for efficient heat exchange. Furthermore, since multiple unit panels 19 constituting the front panel section 14 can be sequentially attached to the back panel section 15, which is a single plate material, the assembly workability of the front panel section 14 is improved using the back panel section 15 as a reference member.

[0062] [Another embodiment] (1) In the above embodiment, a single radiation panel 5 is formed by six unit panels 19, but the configuration is not limited to this, and may be configured as follows.

[0063] For example, as shown in Figure 21, a single radiation panel 5 may be formed by four unit panels 19. In this case, the radiation panel 5 is constructed using two unit panels 19A with one side closed and two unit panels 19B with the other side closed, without using an open unit panel 19C. In this embodiment as well, a total of four through holes 17 are formed, one for each unit panel 19.

[0064] Alternatively, as shown in Figure 22, a single radiation panel 5 may be formed by 12 unit panels 19. In this case, four open-type unit panels 19C are arranged in the middle of the arrangement direction (direction A), and two one-sided closed-type unit panels 19A and two other-sided closed-type unit panels 19B are used on both sides of the arrangement direction. In this embodiment as well, a total of 12 through-holes 17 are formed, one for each unit panel 19.

[0065] The way in which multiple unit panels are combined can be varied in ways other than the configurations shown above, and are not limited to these configurations.

[0066] (2) In the above embodiment, an air supply passage 11 is formed below the through hole 17a on one end and an air discharge passage 12 is formed below the through hole 17b on the other end. However, instead of this configuration, the following configuration may be used.

[0067] In the example shown in Figure 23, the radiant panel 5 is positioned above the air supply passage 11 and the air discharge passage 12, with the air supply passage 11 corresponding to three through-holes 17a at one end and one through-hole 17b at the other end, and the air discharge passage 12 corresponding to two through-holes 17b at the other end. In the example shown in Figure 24, the radiant panel 5 is positioned above the air supply passage 11 and the air discharge passage 12, with the air supply passage 11 corresponding to two through-holes 17a at one end and the air discharge passage 12 corresponding to one through-hole 17a at one end and three through-holes 17b at the other end.

[0068] In the example shown in Figure 25, the radiant panel 5 is positioned above the air supply passages 11 and air discharge passages 12, with the air supply passages 11 corresponding to six through-holes 17a on one end and two through-holes 17b on the other end, and the air discharge passages 12 corresponding to four through-holes 17b on the other end. In the example shown in Figure 26, the radiant panel 5 is positioned above the air supply passages 11 and air discharge passages 12, with the air supply passages 11 corresponding to four through-holes 17a on one end and the air discharge passages 12 corresponding to two through-holes 17a on one end and six through-holes 17b on the other end.

[0069] The correspondence between the radiant panel 5, the air supply channel 11, and the air discharge channel 12 is not limited to the above configuration, and can be implemented in various other forms.

[0070] (3) In the above embodiment, the through holes 17 are provided in an even number of holes, but the number of through holes 17 is not limited to an even number, and may be provided in an odd number. Also, in the above embodiment, three through holes 17a are formed on the supply side of the temperature-controlled air SA and three through holes 17b are formed on the discharge side of the temperature-controlled air SA, and are of the same size, but this is not limited to this. For example, the number of through holes 17a on one end and through holes 17b on the other end may be different, or even if the number is the same, the size of the through holes 17a on one end and through holes 17b on the other end may be different to change the ratio of the ventilation area between the supply side and the discharge side.

[0071]

[0072] ( 4 In the above embodiment, the back panel portion 15 is configured to have at least one through-hole 17 in a region corresponding to a plurality of unit panels 19, but the configuration is not limited to this. If the back panel portion 15 is divided into a plurality of regions corresponding to the unit panels 19, there may be regions in which no through-hole 17 is formed, or there may be regions in which multiple through-holes 17 are formed.

[0073] ( 5 In the above embodiment, a recessed space 20 is formed in the area of ​​the surface of the front panel portion 14 that is in contact with the back panel portion 15, where the air circulation groove 16 is not formed, and which is recessed in a direction away from the back panel portion 15 and does not communicate with the air circulation groove. However, instead of this configuration, the panel may be made thicker without forming the recessed space 20.

[0074] ( 6In the above embodiment, an example was shown in which the unit panel 19 is square-shaped, but the shape of the unit panel 19 is not limited to a square shape. The unit panel may be a triangle, rectangle, parallelogram, rhombus, or polygon. It is preferable that the unit panel is tiled on a plane. Unit panels of different shapes may be used in combination.

[0075] The unit panel may be integrally molded in a rectangular shape by combining two or more square-shaped unit panels 19 of the above embodiment. For example, the unit panel may be a rectangular panel in which one closed unit panel 19A and the other closed unit panel 19C are adjacent to each other in direction A (see Figures 16 and 18). In this case, one or more open unit panels 19C may be sandwiched between the one closed unit panel 19A and the other closed unit panel 19C. For example, the unit panel may be a rectangular panel in which one closed unit panel 19A and the other closed unit panel 19C are adjacent to each other in direction B (see Figures 16 and 18) such that the second air circulation groove 16b connects them. For example, the unit panel may be a rectangular panel in which two open unit panels 19C are adjacent to each other in direction B (see Figure 12) such that the second air circulation groove 16b connects them.

[0076]

[0077] ( 7 In the above embodiment, an air conditioner 6 was used as the air supply means, but it is not limited to an air conditioner; any device that can adjust the temperature of the air is acceptable, and other devices such as a fan coil can be used.

[0078] ( 8 In the above embodiment, the radiant panel 5 is shown to be placed on the floor of the heating and cooling room R, but it may also be placed on the wall or ceiling of the heating and cooling room R. Also, instead of the air conditioner 6 (air supply means) being placed on the ceiling, it may be a floor-mounted type, wall-mounted type, underfloor-mounted type, etc. [Industrial applicability]

[0079] This invention can be applied to radiant panels and heating / cooling systems that use air as a heat transfer medium. [Explanation of Symbols]

[0080] 5. Radiant panels 6. Air conditioner (means of supplying air) 7. Partition plate (means for forming flow channels) 11 Air supply channel 12 Air discharge channel 14 Front panel section 15 Rear panel section 16 Air circulation groove 16a First air circulation channel 16b Second air circulation channel 17 Through hole 19 Unit Panels 19A One-sided closed unit panel 19B On the other side, closed unit panel 19C Open-type unit panel 20 Recessed space 21 Recess 22 Connection recess 23 Groove-like recess SA Temperature-Controlled Air

Claims

1. A plate-shaped front panel that transfers heat to the partition surface that divides a room where cooling or heating is performed, The front panel portion is fitted with a plate-shaped back panel portion that overlaps the front panel portion on the opposite side of the heating and cooling chamber, The front panel portion has multiple air circulation grooves formed at intervals on the surface in contact with the back panel portion, recessed in a direction away from the back panel portion. The rear panel portion is designed to block the air circulation groove from below so that temperature-controlled air can flow through it, and multiple through holes for air circulation are formed at positions corresponding to the air circulation groove. The aforementioned front panel portion is composed of an assembly of multiple unit panels, A radiant panel in which the assembly is attached to the back panel portion, which is a single sheet of material.

2. The front panel portion has, as air circulation grooves, two first air circulation grooves extending along a predetermined direction and a second air circulation groove extending along a direction intersecting the predetermined direction, and a plurality of the second air circulation grooves are connected to the first air circulation grooves. The radiant panel according to claim 1, wherein the second air circulation groove is connected to two of the first air circulation grooves, and the back panel portion has through holes formed at positions corresponding to the first air circulation grooves.

3. The radiation panel according to claim 1, wherein the rear panel portion has at least one through-hole formed in the region corresponding to each of the plurality of unit panels.

4. The unit panel has a first air circulation groove extending along a predetermined direction, and a second air circulation groove extending along a direction intersecting the predetermined direction, and a plurality of the second air circulation grooves are connected to the first air circulation groove. The radiant panel according to claim 1, wherein the second air circulation groove of one of the unit panels is connected to the second air circulation groove of a unit panel adjacent to the unit panel.

5. The radiation panel according to claim 4, wherein the through-holes are formed at positions corresponding to the first air circulation groove of one unit panel and at positions corresponding to the first air circulation groove of a unit panel adjacent to the unit panel.

6. The radiation panel according to claim 4, wherein the unit panel comprises a one-sided closed unit panel in which one end of the first air circulation groove is closed, and a other-sided closed unit panel in which the other end of the first air circulation groove is closed.

7. The radiation panel according to claim 4, wherein the unit panel comprises a one-sided closed unit panel in which one end of the first air circulation groove is closed, a other-sided closed unit panel in which the other end of the first air circulation groove is closed, and an open unit panel in which both one end of the first air circulation groove and the other end of the first air circulation groove are open.

8. The radiant panel according to claim 1, wherein a recessed space is formed in the area of ​​the front panel portion that is in contact with the back panel portion, in a direction away from the back panel portion, and which does not communicate with the air circulation groove.

9. The radiant panel according to claim 1, wherein a plurality of recesses are formed on the surface of the front panel portion facing the heating and cooling room, extending toward the opposite side from the heating and cooling room.

10. A heating and cooling system comprising a radiant panel according to any one of claims 1 to 9, An air supply means for supplying temperature-controlled air to the radiant panel, A heating and cooling system comprising a flow path forming means that forms an air supply flow path for supplying temperature-controlled air supplied from the air supply means to the radiant panel on the side of the radiant panel opposite to the heating and cooling room, and an air discharge flow path for guiding the temperature-controlled air discharged from the radiant panel.

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