JP5727238B2 - Thermal storage floor heating structure and thermal storage floor heating system - Google Patents

Description

  The present invention relates to a heat storage type floor heating structure in which a wooden floor material is provided with a heat storage material, and more particularly to a heat storage type floor heating structure capable of effectively utilizing thermal energy.

  Conventionally, a wooden floor material for floor heating has a storage recess formed on the back surface of the wooden base material, and a heat source such as a hot water pipe or an electric heater is stored in the storage recess. And this wooden flooring is laid on the floor base surface, and these are connected through the real part, and it is set as the floor heating structure.

  In recent years, from the viewpoint of environmental resistance, research and development has been actively conducted in the technical field of floor heating in order to make more effective use of natural energy such as heat energy and solar light generated during floor heating. Energy conservation and ecological measures are taken based on these research and development.

  In view of such a point, in recent years, a floor heating structure using a heat storage material has been developed. Here, as a heat storage material, a latent heat storage material that can store heat at a temperature equal to or higher than the melting point (phase change temperature) has been attracting attention, and various heat storage type floor heating structures using the latent heat storage material have been proposed. (For example, refer to Patent Document 1).

  For example, as a heat storage type floor heating structure using sunlight, a heat storage type floor heating structure as shown in Patent Document 2 has been proposed. This heat storage type floor heating structure includes a heat storage body in which a plurality of types of heat storage materials having different phase change temperatures are housed in a container, and a heat source (hot water pipe) that can heat the heat storage material housed in the heat storage body. . Here, the plurality of types of heat storage materials include heat storage materials having a phase change temperature that is melted by solar heat.

  According to such a heat storage type floor heating structure, not only the heat energy from the heat source but also the solar energy is used by using a heat storage material having a phase change temperature that is melted by solar heat among a plurality of types of heat storage materials. Thus, the floor material can be stored.

JP 2005-9829 A JP 2010-223522 A

  However, the amount of thermal energy applied to the floor surface in the room varies depending on the area of the floor surface in the room. For example, there are areas that are exposed to sunlight, areas that receive little heat energy from sunlight and other heat sources, etc., but the above-mentioned regenerative floor heating structure is capable of storing heat at various temperature conditions. In addition to the heat storage material that melts in the above, a heat storage material that melts at other temperature conditions is also enclosed in one container to form a heat storage material. For this reason, depending on temperature conditions, not all the heat storage materials contribute to heat storage, and it may not be possible to efficiently store heat according to the thermal energy applied to the indoor area.

  This invention is made in view of such a point, The place made into the objective is to provide the thermal storage type floor heating structure which can utilize the thermal storage effect by a thermal storage material more efficiently. is there.

  As a result of intensive studies, the inventors have selected a heat storage material according to the applied thermal energy, and stored the selected heat storage material on the back side of the wooden floor material to form a floor material, as described above. According to the area to which thermal energy is applied, new knowledge has been obtained that if these flooring materials are laid in a predetermined area on the floor base surface, the heat storage effect of the heat storage material can be exhibited more efficiently. .

  The present invention is based on this new knowledge, and in the heat storage type floor heating structure, a storage recess is formed on the back surface of the wooden base material, and the heat source and the first heat storage material are stored in the storage recess. A first wood floor and a second wood storage system in which a storage recess is formed on the back surface of the wood base, and a second heat storage material having a melting point lower than that of the first heat storage material is stored in the storage recess. The floor material is at least laid.

  According to the present invention, in the room where the heat storage type floor heating structure is arranged, the first wooden flooring is laid in an area where the heat energy of the heat source is required, and thereby the heat energy from the heat source is distributed. Heat can be stored in the first heat storage material.

  On the other hand, in the room where the heat storage type floor heating structure is arranged, the second woody flooring is provided in an area where heat energy other than the heat source is applied (or an area where the heat energy of the heat source is indirectly applied). Can be laid. Thereby, heat storage can be performed by the second heat storage material using heat energy other than the heat source in this area.

  Thus, the first wooden flooring can be laid in an area where a heat source is required, and the second wooden flooring can be laid in an area where a heat source is not necessarily required. The energy efficiency as a whole can be further increased.

  Here, the heat storage material according to the present invention is a material that uses thermal energy (latent heat) released or absorbed in accordance with a phase change between a liquid and a solid, and the heat applied during melting (above the melting point). Refers to a heat storage material that can store heat inside. In the present invention, since the melting point of the first heat storage material is higher than the melting point of the second heat storage material, the first heat storage material is more in the interior at a higher temperature condition than the second heat storage material. The heat energy can be stored.

  Therefore, a material having a melting point within the temperature range of the heat source set using the heat source is selected as the first heat storage material, and a material having a melting point lower than this is selected as the second heat storage material. Will be selected.

  In this way, if the first and second woody flooring materials are laid according to the area to which the heat energy is applied, thereby improving the energy efficiency of the heat source, these woody flooring materials can be used. The area where the material is laid is not particularly limited. However, as a more preferable aspect, the second wooden flooring is laid in an area irradiated with sunlight.

  According to this aspect, since the second woody flooring is disposed in the area of the floor base surface where the sunlight is irradiated, the energy of the sunlight can be effectively utilized by the second heat storage material. Furthermore, if a heat storage material having a melting point of about 18 to 28 ° C. is selected as the second heat storage material, excessive heating (heat storage) due to solar energy even if the floor is exposed for a long time by sunlight in summer. Can be suppressed and floor discomfort caused by this can be reduced.

  On the other hand, since the first wooden flooring can be arranged in the area where the sunlight is not irradiated, in this area, the heat source is heated using midnight power, and the first heat storage material is used. The heat from the heat source can be stored. Here, the “area irradiated with solar light” as referred to in the present invention is an area including at least an area that is always irradiated with solar light, regardless of the summer or winter season, in the indoor floor surface.

  Further, the heat source may be either a hot water heater or an electric heater, but in a more preferred aspect, the heat source is an electric heater. In general, electric floor heating using an electric heater is less energy efficient than hot water floor heating using an air conditioner or a heat pump. Waste heat and indirect heat energy such as stoves and fan heaters (for example, heat energy of oil fan heaters provided through indoor air) can be stored and utilized, so the appearance of electric heaters as a whole room The above energy efficiency can be increased.

  The above-described heat storage type floor heating structure is preferably used as a heat storage type floor heating system together with a control device that controls this heat source. More specifically, the heat storage type floor heating system is a heat storage type floor heating system including the heat storage type floor heating structure shown above and a control device for controlling the heat source, wherein the heat storage type floor heating system. More preferably, the system control device activates the heat source when the temperature of the second heat storage material is lower than the melting point of the second heat storage material.

  According to this aspect of the heat storage type floor heating system, when the temperature of the second heat storage material is measured and the measured temperature of the second heat storage material is lower than the melting point of the second heat storage material, Judging that the heat release from the heat storage material of the wooden flooring has decreased, in response to this, start the heat source of the first wooden flooring and make a comfortable transition from heating by solar heat storage to heating by the heat source Can do.

  Further, as a more preferable aspect, the control device of the heat storage type floor heating system calculates a start start time of the heat source based on a temperature of the room that changes over time, and matches the calculated start start time. The heat source is activated.

  According to this aspect of the heat storage type floor heating system, the temperature of the room that changes over time is measured, the start time of the heat source is calculated based on the measured temperature of the room, and the heat source is started at this time. The floor heating can be performed at a desired time so as to reach a desired indoor temperature. In particular, if the room temperature that changes over time is measured at midnight, midnight power can be used effectively.

  According to the heat storage type floor heating structure of the present invention, the heat storage effect by the heat storage material can be used more efficiently.

BRIEF DESCRIPTION OF THE DRAWINGS It is a typical perspective view of the 1st wood type flooring which comprises the thermal storage type floor heating structure which concerns on embodiment of this invention, (a) is a perspective view of the floor type (surface) side wooden type flooring, (B) is a disassembled perspective view of the wooden flooring on the back side. It is a typical perspective view of the 2nd wood type flooring which constitutes the heat storage type floor heating structure concerning the embodiment of the present invention, (a) is a perspective view of the floor type (surface) side wooden type flooring, (B) is a disassembled perspective view of the wooden flooring on the back side. It is a figure for demonstrating the thermal storage type floor heating structure which concerns on embodiment of this invention, (a) is typical sectional drawing for demonstrating the state which has arrange | positioned the thermal storage type floor heating structure, (b). These are sectional drawings of the area where solar radiation is irradiated among heat storage type floor heating structures, and (c) is a sectional view of other areas. The typical conceptual diagram of the thermal storage type floor heating system which concerns on embodiment of this invention. The control flow figure concerning a 1st embodiment of a thermal storage type floor heating system concerning an embodiment of the present invention. The control flowchart which concerns on 2nd Embodiment of the thermal storage type floor heating system which concerns on embodiment of this invention. The temperature of the 2nd thermal storage material when the control flow which concerns on 1st and 2nd embodiment of the thermal storage type floor heating system which concerns on embodiment of this invention and the temperature of a room | chamber interior, and a heater starting time chart. The control flowchart which concerns on 3rd Embodiment of the thermal storage type floor heating system which concerns on embodiment of this invention. The room temperature by the control flow which concerns on 1st and 3rd embodiment of the thermal storage type floor heating system which concerns on embodiment of this invention, and the time chart of heater starting.

  Hereinafter, the present invention will be described based on the present embodiment with reference to the drawings. FIG. 1 is a schematic perspective view of a first wooden floor material constituting a heat storage type floor heating structure according to an embodiment of the present invention, and (a) is a wooden floor material on the floor surface (front surface) side. FIG. 4B is an exploded perspective view of the wooden floor material on the back surface side. FIG. 2 is a schematic perspective view of a second wood floor material constituting the heat storage type floor heating structure according to the embodiment of the present invention, and (a) is a floor surface (surface) side wood floor material. FIG. 4B is an exploded perspective view of the wooden floor material on the back surface side.

  FIG. 3 is a diagram for explaining a heat storage type floor heating structure according to an embodiment of the present invention, and (a) is a schematic cross-sectional view for explaining a state in which the heat storage type floor heating structure is arranged. (B) is sectional drawing of the area irradiated with sunlight among heat storage type floor heating structures, (c) is sectional drawing of another area.

  As shown to Fig.1 (a) and (b), the 1st wood type flooring 10 which comprises the thermal storage type floor heating structure 1 which concerns on embodiment is the wood type base material 11, and the electricity accommodated in this. A type heater (heat source) 16 and a first heat storage body 17.

  The wooden base material 11 is a base material for ensuring at least the rigidity and strength of the flooring, and as materials, ordinary plywood made of hardwood or conifer, LVL, LVB, MDF (wood fiberboard), laminated wood, etc. Can be mentioned as desired. Further, in the present embodiment, as shown in FIG. 1A, the surface 11a of the wood-based substrate 11 is provided with a surface cosmetic material such as oak material, birch material, beech material, teak material, etc., and a cosmetic surface synthesis. A resin sheet is attached.

  In addition, a male real part 12 a and a female real part 12 b are formed on the periphery of the wooden base material 11. By engaging the male real part 12a and the female real part 12b, as shown in FIG. 3, the first wooden floor materials 10 and the second wooden floor material 20 described later are actually connected. can do.

  On the other hand, as shown in FIG. 1 (b), a housing recess 15 is formed on the back surface 11 b of the wooden base material 11. The storage recess 15 sequentially stores the first heat storage body 17 and the electric heater 16 from the bottom 15a toward the opening 15b, and these are bonded to each other via an adhesive, Attached to the wall surface of the storage recess 15.

  The electric heater 16 is a PTC heater and is electrically connected by connectors 16a and 16b, and the heaters can be connected to each other. In addition, although the PCT heater was illustrated as the electric heater 16 here, the electric heater 16 may be a carbon heater.

Moreover, the 1st heat storage material 17 has enclosed the 1st heat storage material (not shown) in the container 17a of resin molded products, such as ABS resin, for example. Here, the first heat storage material is a material that melts (has a melting point Mp1) within the range of the heat generation temperature of the heat source that is set by using the heat source. In the present embodiment, the melting point (phase change temperature) Mp1 is It is a latent heat storage material in the range of 30 to 40 ° C. Specific examples include sodium acetate hydrate, sodium thiosulfate hydrate, and paraffin (C ₂₂ H ₄₆ ).

  On the other hand, as shown to Fig.2 (a) and (b), the 2nd wood type flooring 20 which comprises the thermal storage type floor heating structure 1 which concerns on embodiment is accommodated in the wood type base material 21 and this. A second heat storage body 27.

  The wooden substrate 21 is made of the same material as the wooden substrate 11 shown in FIG. Further, a male real part 22 a and a female real part 22 b are formed on the periphery of the woody base material 21. As a result, as shown in FIG. 3, not only the second wood floor material 20 but also the first wood floor material 10 can be actually connected.

  In FIG. 2 (a), the same surface decorative material as the surface decorative material of the first woody base material 11 is attached to the surface 21a of the second woody base material 21, and the back surface thereof. A storage recess 25 is formed in 21b. A second heat storage body 27 is stored in the storage recess 25, and the second heat storage body 27 is adhered to the bottom 25a of the storage recess 25 and the wall surface of the storage recess 25 via an adhesive. .

  In the second heat storage body 27, a second heat storage material (not shown) is enclosed in a container 27a of a resin molded product such as ABS resin. Here, the second heat storage material is a latent heat storage material that melts by solar heat applied by sunlight, and is a latent heat storage material that has a lower melting point (phase change temperature) Mp2 than the first heat storage material. In the present embodiment, the second heat storage material is a latent heat storage material having a melting point Mp2 of 18 ° C to 28 ° C.

Specifically, examples of the second latent heat storage material include sodium sulfate hydrate, calcium chloride hydrate, paraffin (C ₁₈ H ₃₈ ), and the like. If so, the material is not particularly limited.

  By laying the first and second woody floor materials 10 and 20 thus obtained on the floor foundation surface 71 of the room 70, the heat storage type floor heating structure 1 can be obtained. Specifically, as shown in FIGS. 3A and 3B, in the present embodiment, in the floor base surface 71 of the room 70, the area 71 a that is irradiated with solar light has a plurality of second areas. Laying the wooden floor materials 20, 20. On the other hand, as shown in FIGS. 3 (a) and 3 (c), a plurality of first wood floor materials 10, 10...

  In this way, a heat storage type floor heating structure with high energy efficiency can be obtained for the entire room. That is, the heat storage type floor heating structure 1 can effectively utilize the energy of the sunlight irradiated to the second wooden floor material 20 by the second heat storage material having a melting point of 18 ° C. to 28 ° C. Further, even if the floor is exposed to sunlight for a long time in summer, excessive heating due to solar energy can be suppressed, and the discomfort of the floor due to this can be reduced.

  In addition, since the first wooden flooring 10 can be arranged in an area where the sunlight is not irradiated, the electric heater 16 is activated by the control device 30 in this area using, for example, midnight power. By making this generate heat, the heat of the electric heater 16 can be stored in the first heat storage material. In addition, a comfortable environment can be created by starting the electric heater even when there is no solar radiation (heater heat can be used as it is).

  FIG. 4 is a schematic conceptual diagram of the regenerative floor heating system 100 according to the embodiment of the present invention, and is a diagram showing details of the control device 30 shown in FIG. 3. The heat storage type floor heating system 100 includes the above-described heat storage type floor heating structure 1 and a control device 30 that controls the electric heater 16 of the heat storage type floor heating structure 1.

  The control device 30 is configured to input an input signal from the operation panel 31 to the CPU 33 via the A / D converter 32. The CPU 33 sets the desired floor temperature based on information stored in the memory 34 in advance, information on the time from the timer 35, temperature information of the first and second temperature measuring units 41 and 42, and the like. In addition, the start time, the energization current value, the energization ratio, etc. of the electric heater 16 are calculated. These calculated values are output to the drive unit 38 via the D / A converter 37 as control signals. The drive unit 38 is connected to the AC power supply 40 and energizes the electric heater 16 with a predetermined current from the AC power supply 40 based on a control signal from the CPU 33 to start each electric heater 16. Here, the function of each part will be described in detail below.

  The operation panel 31 is an input device for setting the floor temperature to a desired temperature. Further, the operation panel 31 can select and set the control method of the electric heater 16 as shown in FIGS. It is possible.

  The 1st temperature measurement part 41 measures the temperature (1st temperature ta) of the 2nd thermal storage material of the 2nd wood type flooring 20, for example, is a thermistor. The first temperature measurement unit 41 is disposed on the second heat storage material of at least one second wood floor material 20.

  On the other hand, the 2nd temperature measurement part 42 measures the temperature (2nd temperature tb) in the room where the said thermal storage type floor heating structure was laid, for example, is a thermistor. The 2nd temperature measurement part 42 is arrange | positioned among the indoors in the position (for example, the wall surface which a solar radiation or the airflow of an air-conditioner does not hit directly) where the average temperature in a room can be measured. These measured first and second temperatures are input to the CPU 33 via the A / D converter 32 as described above.

  The memory 34 is composed of a ROM, a RAM, and the like in which calculation conditions and determination conditions calculated by the CPU 33 are stored in advance, and outputs these conditions to the CPU 33 as necessary. The timer 35 can measure not only the current time but also the drive time of the electric heater 16 by the drive unit 38 as necessary.

  On the premise of such a configuration, the CPU 33 performs the following calculation. FIG. 5 is a control flow diagram according to the first embodiment of the regenerative floor heating system according to the embodiment of the present invention. This control flow is a flow for controlling the start timing of the electric heater 16. Here, at the start time, the electric heater is not activated.

  Specifically, as shown in FIG. 5, first, in step S501, it is determined whether or not the time T from the timer 35 becomes the time T1 stored in the memory 34. If the time T1 is not reached (NO), the determination in step S501 is repeated until the time T1 is reached.

  Next, when it is time T1 in step S501 (YES), the process proceeds to step S502, and the first temperature ta from the first temperature measurement unit 41 is measured (temperature data is input to the CPU 33). As described above, the first temperature t1 is the temperature of the second heat storage material of the second wooden floor material 20.

  Next, it progresses to step S503 and it is determined whether 1st temperature (temperature of a 2nd heat storage material) t1 is lower than melting | fusing point Mp2 of a 2nd heat storage material. Here, when the first temperature ta is equal to or higher than the melting point Mp2 of the second heat storage material (NO), in this state, the second heat storage material is melted by solar heat and can be heated by solar heat. The electric heater 16 is not activated, and the process proceeds to step S504, where a predetermined time ΔT is added to time T1, and the process returns to step S501.

  On the other hand, if the first temperature ta is lower than the melting point Mp2 of the second heat storage material, it is determined that heating using solar radiation heat is not sufficient, and the process proceeds to step S505, where the electric heater is connected to the drive unit 38. A control signal for starting 16 is output.

  FIG. 6 is a control flow diagram according to the second embodiment of the regenerative floor heating system according to the embodiment of the present invention. This control flow is a flow for controlling the stop timing of the electric heater 16.

  Specifically, as shown in FIG. 6, first, in step S601, the electric heater 16 is activated. This activation may be the activation of the electric heater 16 in step S505 of FIG. 5 described above. Next, it progresses to step S602 and measures 2nd temperature tb. The second temperature tb is the temperature in the room where the heat storage type floor heating structure is laid.

  In step S603, it is determined whether the second temperature tb has exceeded a preset maximum temperature tm. Here, when the second temperature tb does not exceed the maximum temperature tm (NO), the process returns to step S602 in order to maintain the activated state of the electric heater 16. The maximum temperature tm here is a desired temperature preset by the operator or the highest temperature in a temperature range in which the room temperature can be comfortably maintained.

  On the other hand, if the measured temperature ta exceeds the maximum temperature tm (YES), the electric heater 16 determines that the floor is overheated, and the process proceeds to step S604 where the electric heater 16 is stopped by the drive unit 38. The control signal to be output is output.

  Here, the relationship between the first temperature ta, the second temperature tb, and the heater activation timing when the series of control flows of FIGS. 5 and 6 is performed will be described with reference to FIG. FIG. 7 shows the temperature of the second heat storage material, the room temperature, and the heater activation time chart when the control flow according to the first and second embodiments of the heat storage type floor heating system according to the embodiment of the present invention is executed. It is.

  As shown in FIG. 7, according to the series of control flows in FIG. 5, the control device 30 causes the first temperature ta that is the temperature of the second heat storage material to be When the temperature becomes lower than the melting point Mp2 of the second heat storage material, the electric heater 16 is activated. Thereby, after the time T1, the 1st wood type flooring 10 heats up. As a result, it is possible to comfortably shift from heating by solar radiation heat storage to heating by a heat source.

  And when the 2nd temperature tb which is room temperature exceeds the maximum temperature tm (time Tp), starting of the electric heater 16 is stopped. In this way, overheating by the electric heater 16 can be prevented.

  FIG. 8 is a control flow diagram according to the third embodiment of the regenerative floor heating system according to the embodiment of the present invention. This control flow is a flow for controlling the start timing of the electric heater 16 at midnight.

  Specifically, as shown in FIG. 8, first, in step S801, it is determined whether or not the time T from the timer 35 is the time T2 stored in the memory 34. If time T2 has not been reached (NO), the determination in step S801 is repeated until time T2.

  Next, when it is time T2 in step S801 (YES), the process proceeds to step S802, and the temperature t2 from the second temperature measurement unit 42 is measured (temperature data is input to the CPU 33). The temperature t2 is the second temperature tb at time T2, and is the temperature of the room 70 where the heat storage type floor heating structure 1 is laid.

  Next, in step S803, it is determined whether time T from the timer 35 has reached time T3. If time T3 has not been reached (NO), the determination in step S803 is repeated until time T3 is reached.

  Next, in step S803, when it is time T3 (YES), it progresses to step S804 and the 2nd temperature t3 from the 2nd temperature measurement part 42 is measured. The temperature t3 is the second temperature tb at time T3.

  Next, the process proceeds to step S805, and in step S805, an indoor temperature change amount Δt from time T2 to time T3 is calculated. Specifically, the temperature change amount Δt is a value obtained by subtracting the temperature t3 at time T3 from the temperature t2 at time T2.

  Next, the process proceeds to step S806, and the time at which the electric heater 16 is to be activated is calculated based on the temperature t3 at time T3 and the temperature change amount Δt. Specifically, in order to use midnight power, at least at 7:00 in the morning, the activation time ΔTs of the electric heater 16 is calculated so that the room temperature changes from the temperature t3 to the desired temperature tt.

  The calculation of the activation time ΔTs may use a table in which the time at which the desired temperature tt is obtained based on the temperature t3 at the time T3 and the temperature change amount Δt is obtained in advance through experiments or the like. Alternatively, a function f such that time ΔTs = f (t3, Δt) is prepared, and the startup time ΔTs may be calculated by substituting the temperature t3 and the temperature change amount Δt into the function f.

  Then, the process proceeds to step S807, the time calculated by starting the activation time ΔTs from 7:00 in the morning is calculated, and this time is set as the activation start time T4 of the electric heater 16, and the process proceeds to step S808. Next, in step S808, it is determined whether the time T from the timer 35 has reached the activation start time T4.

  If the activation start time T4 is not reached (NO), the determination in step S808 is repeated until the activation start time T4 is reached. On the other hand, if the activation start time T4 is reached in step S808 (YES), the process proceeds to step S809, and a control signal for activating the electric heater 16 is output to the drive unit 38.

  Here, the relationship between the room temperature and the heater driving timing when the series of control flows of FIGS. 6 and 8 is performed will be described with reference to FIG. FIG. 9 is a time chart of the room temperature and heater activation according to the control flow according to the first and third embodiments of the regenerative floor heating system according to the embodiment of the present invention.

  As shown in FIG. 9, the control device 30 measures the temperature t2 as the second temperature tb at the time T2, and measures the temperature t3 as the second temperature tb at the time T3, according to the series of flows in FIG. Then, the temperature change amount Δt is calculated at time T3. Then, the activation time ΔTs of the electric heater 16 is calculated from the temperature t3 and the temperature change amount Δt, and the activation start time T4 is calculated based on the activation time ΔTs.

  Then, the electric heater 16 is activated at the activation start time T4. Accordingly, the floor of the heat storage type floor heating structure 1 is heated using midnight power, and the temperature of the floor of the heat storage type floor heating structure 1 reaches a desired temperature tt at 7:00 am.

  As a result, the indoor temperature (second temperature tb) that changes over time is measured by the second temperature measurement unit, and the start time of the electric heater 16 is started based on the measured second temperature tb. Since T4 is calculated, floor heating can be performed so that the desired room temperature tt is reached at 7:00 am, which is a desired time. In particular, since the electric heater 16 is activated by measuring the temperature of the room that changes over time at midnight, it is possible to effectively use midnight power.

  On the other hand, as shown by the chain line in FIG. 9, when the temperature change amount Δt ′ is smaller than the above-described temperature change amount Δt and the temperature t3 ′ is higher than the above-described temperature t3 at time T3, The activation time ΔTs ′ of the heater 16 is calculated so as to be shorter than the activation time ΔTs described above. As a result, the activation start time T4 'of the electric heater 16 is later than the activation start time T4 described above. In this way, the electric heater 16 can be efficiently activated in a shorter time and the late-night power can be effectively utilized.

  When the second temperature tb, which is the room temperature, exceeds the maximum temperature tm, the activation of the electric heater 16 is stopped according to the control flow shown in FIG. In this way, overheating by the electric heater 16 can be prevented.

  As mentioned above, although embodiment of this invention has been explained in full detail using drawing, a concrete structure is not limited to this embodiment, Even if there is a design change in the range which does not deviate from the gist of the present invention. These are included in the present invention.

  8 and 9, when the second temperature tb, which is the room temperature, exceeds the maximum temperature tm, the activation of the electric heater 16 is stopped. However, the first temperature ta exceeds the predetermined temperature. In this case, the activation of the electric heater 16 may be stopped. As a result, it is possible to comfortably shift from heating by a heat source to heating by solar heat storage.

  In the present embodiment, an electric heater is used as a heat source in order to increase energy efficiency. However, for example, a hot water heater using a hot water pipe may be used as a heat source. Moreover, in the first and second woody floor materials, each heat storage material is enclosed in a container to form a heat storage material, but if the heat storage material at the time of melting does not flow out of the storage recesses of these floor materials, The heat storage material may be directly stored in the storage recess. Moreover, as shown in FIG. 3, it is not necessary to lay the first woody floor material in all areas where the sunlight is not irradiated, and only the woody base material may be laid as needed.

  1: thermal storage type floor heating structure, 10: first wood floor material, 11: wood base material, 11a: front surface, 11b: back surface, 12a: male real part, 12b: female real part, 16: electric heater , 16a, 16b: connector, 17: first heat storage body, 20: second wood floor material, 21: wood base material, 21a: front surface, 21b: back surface, 22a: male part, 22b: female fruit Unit, 27: second heat storage body, 30: control device, 32: A / D converter, 33: CPU, 34: memory, 35: timer, 37: D / A converter, 38: drive unit, 41: 1st temperature measurement part, 42: 2nd temperature measurement part, 70: Indoor, 71: Floor ground surface, 71a: Area irradiated with sunlight, 71b: Area not irradiated with sunlight, 100: Thermal storage type floor heating system

Claims (7)

A storage recess is formed on the back surface of the wooden substrate, and a first wooden floor material in which the storage source stores a heat source and a first heat storage material;
A storage concave portion is formed on the back surface of the wooden base material, and the second wooden floor material in which the second heat storage material having a melting point lower than that of the first heat storage material is stored in the storage concave portion is in the same room. Is laid ,
The first wooden flooring is laid in an area of the room where the heat energy of the heat source is required,
The heat storage type floor heating structure, wherein the second wooden floor material is laid in an area of the room to which heat energy other than the heat source is applied. The zone heat energy other than the heat source is applied, the regenerative floor heating structure according to claim 1, characterized in that the area where the solar light is irradiated.   The heat storage type floor heating structure according to claim 1, wherein the heat source is an electric heater. A storage recess is formed on the back surface of the wooden substrate, a first wooden floor material in which the heat source and the first heat storage material are stored in the storage recess, and a storage recess is formed on the back surface of the wooden substrate, A heat storage floor heating structure in which at least a second wooden floor material in which a second heat storage material having a melting point lower than that of the first heat storage material is stored in the storage recess is laid, and a control for controlling the heat source A regenerative floor heating system comprising a device,
The said control apparatus starts the said heat source, when the temperature of a said 2nd thermal storage material is lower than melting | fusing point of the said 2nd thermal storage material, The thermal storage type floor heating system characterized by the above-mentioned.   The said control apparatus calculates the starting start time of the said heat source based on the indoor temperature which changes over time, and starts the said heat source according to the calculated starting start time. The regenerative floor heating system described in 1. The regenerative floor heating system according to claim 4 or 5, wherein the second wooden flooring is laid in an area where sunlight is irradiated. The regenerative floor heating system according to any one of claims 4 to 6, wherein the heat source is an electric heater.

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