JP2020008195A - Underfloor air-conditioning system - Google Patents

Abstract

To provide an underfloor air-conditioning system capable of reducing introduction limitation based on the specification of a building, and enabling excellent air-conditioning.SOLUTION: An underfloor air-conditioning system comprises: an air conditioner that air-conditions air and blows it under a floor so that the air-conditioned air flows from under the floor of a building toward above the floor; and a vent hole formed in a floor board so that the space under the floor and the space above the floor communicate with each other. The floor board is formed at a position different from the vent so as to be able to install the air conditioner across above the floor and under the floor with the floor board as a boundary. The air conditioner is arranged so as to have a suction port on the floor and a blowout port under the floor in an installed state.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an underfloor air conditioning system for controlling the temperature of a living room in a building.

  2. Description of the Related Art Conventionally, an underfloor air-conditioning system has been proposed in which an under-floor air-conditioning system that uniformly warms an entire living room by warming air under the floor so that warm air naturally rises from the floor surface instead of an air-conditioning device that blows warm air into the living room has been proposed.

  Conventionally, as an underfloor air conditioning system, for example, an air conditioner that blows out conditioned air under the floor so that air conditioned from the floor of the building toward the floor flows upward, so that the space under the floor and the space above the floor communicate with each other. 2. Description of the Related Art An underfloor air-conditioning system including a vent formed in a floor panel and a guide pipe for transporting warm air near the vent is known (Patent Document 1).

  According to the underfloor air-conditioning system of Patent Literature 1, since the guide tube for transporting air is provided, the air heated under the floor can be accurately guided to the vicinity of the ventilation port, and the space on the floor can be effectively warmed. It becomes possible.

JP 2000-17470 A

  In the conventional underfloor air conditioning system, since the air conditioner is installed in the space under the floor, there is an introduction restriction that the installation cannot be performed if the height of the space under the floor is smaller than the height of the air conditioner. .

  A temperature sensor used for air-conditioning control of the air conditioner is usually provided inside the air conditioner from the viewpoint of preventing damage and eliminating troublesomeness.

  In conventional underfloor air conditioning systems, the air conditioner is installed under the floor, so the position of the temperature sensor is under the floor, and it is not possible to accurately detect the temperature of the living room and air conditioning may not be performed well. Was.

  In addition, in the conventional underfloor air conditioning system, since the entire air conditioner including the suction port is arranged under the floor, dust and dust falling on the floor surface easily descend toward the suction port and are sucked, Air conditioning failure is likely to occur due to clogging of the suction port.

  In addition, in the conventional underfloor air conditioning system, since the air conditioner is located under the floor, maintenance for eliminating clogging of the suction port is not easy.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an underfloor air-conditioning system in which introduction restrictions based on the specifications of a building are relaxed and good air-conditioning is possible.

  In order to solve the above-described problems, the invention according to claim 1 includes an air conditioner that air-conditions air and blows the air under the floor so that air-conditioned air flows from under the floor of the building toward the floor, a space under the floor, and a space above the floor. In the underfloor air-conditioning system including a vent formed in the floorboard so that the space communicates with the space, the floorboard straddles the air conditioner on the floor and under the floor at a position different from the vent and borders the floorboard. The air conditioner is arranged so as to have an inlet on the floor and an outlet under the floor when installed.

  The “floor space” is a living room or another space that communicates with the living room, and it is sufficient that at least the air inlet of the air conditioner can protrude from the floor.

  The invention according to claim 2 relates to the underfloor air-conditioning system according to claim 1, wherein a closing plate that fills a gap formed between the floor plate and the air conditioner is provided.

  The invention according to claim 3 relates to the obstruction plate according to claim 2, wherein the obstruction plate is detachably fitted into a gap formed between the floor plate and the air conditioner. It has a grip portion that can be gripped on the upper surface portion.

  The “grip” is provided separately from the closing plate or formed as a part of the closing plate, protrudes above the upper surface of the closing plate, and is closed compared to the case where only the upper surface of the closing plate is provided. This is the part that makes it easy to remove the board.

  The invention according to a fourth aspect relates to the air conditioner according to any one of the first to third aspects, wherein the air conditioner is used for air conditioning control of the air conditioner, and is provided outside the housing of the main body. And having a temperature sensor arranged on the floor.

  "Outside the housing of the main body" is a position distant from the housing of the main body or an outer surface of the housing of the main body.

  The invention according to claim 5 relates to the underfloor air-conditioning system according to any one of claims 1 to 4, wherein the underfloor air-conditioning system includes an air circulation fan that promotes air circulation between living rooms of the building. And

  The invention according to claim 6 relates to the underfloor air-conditioning system according to any one of claims 1 to 5, wherein a ventilation port through which air naturally escapes to the outside under the floor of the building is not provided, and A charcoal is provided under the floor of the building, and an underfloor heat storage structure is provided, which is provided with a heat insulating material for covering the foundation except for a part or all of the bottom surface inside the foundation slab of the foundation.

  The term “foundation” includes not only a foundation slab extending toward the ground, but also a foundation rising portion when a foundation rising portion rising from the outer peripheral edge of the foundation slab is provided.

  The "heat insulating material" may be any material having a higher heat insulating effect than the foundation. For example, if the foundation is concrete, any material having a higher heat insulating effect than concrete may be used.

  According to the first aspect of the present invention, since the air conditioner includes the ventilation hole formed in the floorboard and the air conditioner that air-conditions the air and blows the air under the floor, for example, in the case of heating, the air conditioner is heated by the air conditioner. The warm air blown out below the floor can flow not only from below the floor to above the floor through the ventilation holes of the building, but also the floor surface can be warmed from below the floor by the warm air.

  For this reason, the air-conditioning effect that cannot be obtained with an air-conditioning apparatus in which the outlet is on the floor like an air-conditioning apparatus mounted on a wall or placed on a floor surface, that is, a living room using hot or cold heat released from the floor surface And uniform air conditioning without temperature unevenness can be achieved. Since the warm air rises due to the specific gravity, the underfloor air-conditioning system according to the present invention is suitable for heating a living room.

  Further, according to the present invention, since the air conditioner can be installed across the floor and below the floor with the floor board as a boundary, the height dimension of the space under the floor is smaller than the height dimension of the air conditioner. Even if an air conditioner is installed, an underfloor air conditioning system can be introduced.

  Further, according to the present invention, since the air conditioner can be arranged so as to protrude above the floor from under the floor, the problem that the temperature sensor built in the air conditioner is buried in the space under the floor unlike a conventional underfloor air conditioning system is solved. It is possible to accurately sense the temperature of the living room and perform good air conditioning.

  Further, according to the present invention, since it has a suction port on the floor, it is difficult for dust or dust falling on the floor surface to be sucked into the suction port, and it is possible to suppress a decrease in air conditioning performance due to clogging of the suction port. Easy to maintain air conditioning.

  In addition, unlike the conventional underfloor air conditioning system, the suction port is located on the floor, so that maintenance for eliminating clogging is also facilitated.

  As a result, according to the first aspect of the invention, an underfloor air-conditioning system in which introduction restrictions based on the specifications of the building are relaxed and good air-conditioning is possible is realized.

  According to the second aspect of the present invention, the air-conditioned air is less likely to leak out of the gap by the closing plate that fills a gap that may occur when the air conditioner is installed.

  Therefore, according to the present invention, the floor surface is easily heated or cooled from under the floor effectively, and the effect of uniform air-conditioning using the warm or cold heat of the floor without unevenness in the temperature of the living room is enhanced.

  According to the third aspect of the present invention, since the closing plate is removable, it becomes easy to take out the air conditioner at the time of maintenance such as removal of clogging of the air outlet of the air conditioner or replacement of the air conditioner.

  Here, the step is prevented from occurring between the closing plate and the floor surface to prevent occupants from tripping and falling to enhance safety, and also to minimize the gap between the air conditioner and the floor plate as much as possible. If the floor is effectively warmed from under the floor, it becomes difficult to remove the closing plate, which makes maintenance and replacement of the air conditioner difficult.

  On the other hand, according to the present invention, since the holding portion is provided on the closing plate, the closing plate can be easily removed. Therefore, according to the present invention, it is possible to improve the safety by eliminating the steps and to effectively warm or cool the floor surface by eliminating gaps as much as possible, and to achieve both the easy maintenance and replacement of the air conditioner. Can be planned.

  According to the fourth aspect of the present invention, since the temperature sensor used for air-conditioning control of the air conditioner is disposed outside the housing of the main body and on the floor, the temperature sensor provided inside the air conditioner is provided. Compared with the sensor, it becomes possible to more accurately detect the temperature of the living room, so that the air conditioning can be performed better.

  According to the fifth aspect of the present invention, even in a building having two or more floors, air-conditioned air can be supplied from under the floor or from the first floor living room to the upper floor by the air circulation fan that promotes air circulation between the living rooms. , It is easy to be sent to the, and the whole building can be air-conditioned better.

  In addition, even if it is desired to cool the living room, the air circulation fan makes it easy to guide the cool air to the upper floor, and an underfloor air-conditioning system that exerts an effective air-conditioning function in both heating and cooling is realized. .

  Further, according to the invention according to claim 6, since a ventilation port through which air naturally escapes to the outside is not provided under the floor of the building and the space under the floor becomes a closed room, the air is blown down from the air outlet of the air conditioner. Warm air and cold air hardly leak to the outside of the building, and the floor can be more effectively heated or cooled to air-condition the living room.

  In addition, since charcoal is provided under the floor, even if the space under the floor is closed, moisture under the floor is absorbed by the carbon material and humidity under the floor is adjusted.

  Therefore, according to the present invention, the living room can be air-conditioned by warming or cooling the floor surface more effectively by making the underfloor a closed room, and the underfloor fungus and the woody structure can be rotted under the floor by the humidity control action of the charcoal. Becomes

  According to the invention according to claim 6, since the foundation is covered with the heat insulating material except for a part or the whole of the inner bottom surface of the base slab, a part of the heat blown under the floor is a heat insulating material. It accumulates inside the base slab via the uncovered area.

  Normally, a power company must supply power stably regardless of day and night, while power usage tends to extremely decrease at night. For this reason, electric power companies often adopt a mechanism in which the electricity generated by lowering the nighttime electricity rate is effectively used without discarding it.

  In such a situation, the air conditioner is stopped or operated at a low output during the day when the electricity rate becomes normal, and the air conditioner is operated at night when the electricity rate becomes low, and the heat stored in the base slab is stored. Can be used complementarily.

  Therefore, according to the invention according to claim 6, the living room can be air-conditioned by effectively warming or cooling the floor surface by making the underfloor a closed room, and the moisture control of the charcoal makes it possible to prevent mold and woody structures under the floor. Not only is it possible to rot, but it is also possible to reduce the cost of air conditioning by making effective use of nighttime electricity by using the base slab as a heat storage tank.

FIG. 1 is a view showing one embodiment of an underfloor air conditioning system according to the present invention, and is a longitudinal sectional view of a building to which the underfloor air conditioning system is applied. FIG. 2 is a diagram showing an air conditioner installation site in the underfloor air conditioning system of the present embodiment, and is a partially enlarged view of FIG. FIG. 3 is a front perspective view of the air conditioner installation site in the underfloor air conditioning system of the present embodiment as viewed from above the floor, and is a diagram illustrating a structure of a floor plate. FIG. 4 is a front perspective view of the air conditioner installation site in the underfloor air-conditioning system according to the present embodiment as viewed from above the floor, and is a diagram illustrating a structure of a closing plate. FIG. 5 is a perspective view of a closing plate constituting the underfloor air-conditioning system of the present embodiment.

  An underfloor air-conditioning system according to the present invention will be described in detail based on an embodiment with reference to the accompanying drawings.

  The underfloor air-conditioning system of the present embodiment is configured so that the air-conditioned device that air-conditions and blows air under the floor, and the space under the floor and the space on the floor communicate with each other so that the air-conditioned air flows from under the floor of the building toward the floor. And an air vent formed in a floorboard.

  FIG. 1 is a longitudinal sectional view of a building to which the underfloor air-conditioning system of the present embodiment is applied, and FIG. 2 is an enlarged view of a part P in FIG. As shown in FIG. 1, the underfloor air-conditioning system 10 of the present embodiment is applied to a two-story detached house type building 50.

  As shown in FIGS. 1 and 2, the underfloor air-conditioning system 10 includes a floor plate 11, a vent 12, an air conditioner 13, an installation plate 14, a closing plate 15, a foundation 16, heat insulating materials 17, 17. , 18...

FIG. 3 is a front perspective view of the air conditioner installation site of FIG. 2 viewed from above the floor, and shows a state where the closing plate 15 of FIG. 2 is removed.
As shown in FIG. 3, the floor panel 11 of the underfloor air conditioning system 10 has an opening 111 that does not contact the wall 51 shown in FIG. Using this opening 111, as shown in FIG. 2, the air conditioner 13 can be installed over the floor and under the floor with the floor plate 11 as a boundary.

  As shown in FIG. 1, the vent 12 of the underfloor air-conditioning system 10 is formed at a position adjacent to an outer wall 52 on the opposite side facing the outer wall 51 of the building 50 in which the air conditioner 13 is provided.

  As shown in FIG. 2, the air conditioner 13 of the underfloor air-conditioning system 10 is arranged so as to have a suction port 132 on the floor and a blowout port 133 below the floor in a state where the main body 131 is installed.

  As shown in FIG. 2, the main body 131 of the air conditioner 13 is fixed to a wooden installation plate 14 attached inside the outer wall 51. The main body 131 and the installation plate 14 are in close contact with each other so that no gap is formed between the main body 131 and the installation plate 14.

  As shown in FIG. 3, the air conditioner 13 is used for air conditioning control of the air conditioner 13, and has a temperature sensor 134 disposed outside the housing of the main body 131 and on the floor. The temperature sensor 134 is constituted by a thermistor.

  As shown in FIG. 3, the temperature sensor 134 of the air conditioner 13 is attached to the inner surface 31 of the wooden housing 30 that houses the body 131 of the air conditioner 13 so as to surround the body 131 from the side to the top. Have been.

  In addition, a sliding door (not shown) is provided to cover the front surface of the housing 30, so that the air conditioner 13 can be concealed while preventing the air suction by the air conditioner 13 from being hindered. .

  FIG. 4 is a front perspective view of the air conditioner installation site of FIG. 2 as viewed from above the floor, and FIG. 5 is a perspective view of a closing plate constituting the air conditioner installation site.

  As shown in FIG. 4, the closing plate 15 of the underfloor air-conditioning system 10 has a flat plate 151 and a grip 152.

  As shown in FIG. 5, the flat plate member 151 of the closing plate 15 is formed in a U-shape as a whole, and the opening of the floor plate 11 remaining in a state where the main body 131 of the air conditioner 13 shown in FIG. A shape and a size for filling the portion 111 (gap 40) are set.

  The flat plate 151 is formed such that the ends 156 and 156 shown in FIG. 5 are in close contact with the installation plate 14 shown in FIG. That is, the flat plate member 151 is configured to completely close the gap 40 shown in FIG.

  In addition, as shown in FIG. 4, the flat plate member 151 is inserted between the upper surface 155 and the floor surface 112 in a state of being fitted into the gap 40 (FIG. 3) formed between the floor plate 11 and the air conditioner 13. It is formed so that a step does not occur.

  As shown in FIGS. 4 and 5, the gripper 152 of the closing plate 15 is provided at a central portion on the front side of the air conditioner 13, which is on the near side, of the upper surface 155 of the flat plate 151, and can be gripped by metal. It consists of a handle.

  As shown in FIG. 1, the foundation 16 of the underfloor air-conditioning system 10 includes a reinforced concrete foundation slab 161 that extends toward the ground 80 and supports the building 50, and a foundation rising part 162 that rises from the outer peripheral edge of the foundation slab 161. It is configured. Below the floor, which is an area surrounded by the floorboard 11 and the foundation 16, there is no ventilation port through which air naturally escapes to the outside.

  The heat insulating materials 17, 17,... Of the underfloor air conditioning system 10 are made of expanded polystyrene, and cover the outside front surface of the base slab 161 and the inside and outside of the base rising section 162.

  Each of the lump of charcoal 18, 18,... Of the underfloor air-conditioning system 10 is configured by collecting finely crushed charcoal in one lump, and is spaced apart from the upper surface of the base slab 161 under the floor. It is placed in several places.

  In the building 50, as shown in FIG. 1, the second-floor ceiling 53 is mainly provided with a heat insulating material using cellulose, and the first-floor outer wall upper portion 54 is covered with a heat insulating material using foamed plastic and cellulose. I have.

  In addition, the building 50 is provided with an air purifying device 55, so that fresh outside air is constantly taken under the floor for 24 hours. The pipe 56 of the air purifying device 55 is provided so as to penetrate the foundation rising section 162, but is sealed so that no gap is formed between the through hole and the pipe 56, and air flows under the floor of the building 50. It is designed not to be a vent that naturally escapes to the outside.

Next, effects of the underfloor air conditioning system 10 will be described.
For example, when heating the first floor living room 61 and the second floor living room 62, the air conditioner 13 of the underfloor air conditioning system 10 is operated in the heating mode.

  The air 73 in the first-floor living room 61 is taken into the air conditioner 13, becomes hot air 71, and is blown out under the floor.

  The warm air 71 blown out of the air conditioner 13 moves under the floor while warming the floor plate 11, and flows through the vent 12 provided adjacent to the outer wall 52 opposite to the outer wall 51 where the air conditioner 13 is installed. Go out to living room 61 on the first floor.

  At this time, since the vent 12 is provided adjacent to the outer wall 52 on the opposite side to the outer wall 51 where the air conditioner 13 is installed, the diffusion range of the warm air 71 under the floor is secured to the maximum and the floorboard 11 is heated almost entirely.

  The warm air 72 rises from the floor panel 11 that has been entirely heated by the warm air 71, and the first floor living room 61 is evenly heated without temperature unevenness.

  In addition, the warm air 71 which came out of the vent 12 rises to the second floor living room 62 while warming the first floor living room 61, and the warm air 72 rising from the floorboard 11 also rises to the second floor living room 62. The second floor living room 62 is also warmed.

  Further, according to the underfloor air conditioning system 10, the closing plate 15 that fills the gap 40 that may occur when the air conditioner 13 is installed makes it difficult for the warm air 61 to leak from the gap 40.

  For this reason, according to the underfloor air-conditioning system 10, the floor surface is effectively warmed from under the floor, and the effect of uniform air-conditioning using the heat of the floor surface without unevenness in temperature in the first floor living room 61 is enhanced.

  Further, according to the underfloor air conditioning system 10, since the closing plate 15 is removable, the air conditioning device 13 can be taken out at the time of maintenance such as removal of clogging of the outlet 133 of the air conditioning device 13 or replacement of the air conditioning device 13. Become.

  Further, since the holding portion 152 is provided on the closing plate 15, the closing plate 15 can be easily removed. Therefore, according to the underfloor air-conditioning system 10, the step between the floor plate 11 and the closing plate 15 is eliminated to enhance safety and to effectively warm the floor surface with as little clearance as possible. Maintenance and replacement can be facilitated.

  Further, according to the underfloor air-conditioning system 10, the temperature sensor 134 used for air-conditioning control of the air-conditioning device 13 is disposed outside the housing of the main body 131 and on the floor. Compared with the temperature sensor provided inside, it is possible to more accurately detect the temperature of the first-floor living room 61, so that heating is performed more favorably.

  Further, according to the underfloor air-conditioning system 10, the air under the floor of the building 50 is not provided with a vent that naturally escapes to the outside, and the space under the floor becomes a closed room, so that the air is blown under the floor from the outlet 133 of the air conditioner 13. The heated warm air 71 hardly leaks to the outside of the building, so that the floor can be more effectively heated and the first floor living room 61 and the second floor living room 62 can be heated.

  Moreover, since the lump of charcoal 18 is provided under the floor, the moisture under the floor is absorbed by the carbonaceous material and the humidity under the floor is adjusted even if the space under the floor is closed. For this reason, it is possible to warm the floor more effectively by making the underfloor a closed room, and it is possible to prevent mold under the floor and rot the wooden structure by the humidity control of the charcoal ingots 18, 18,.

  In addition, according to the underfloor air conditioning system 10, since the foundation 16 is covered with the heat insulating materials 17, 17,... Except for the inner bottom surface of the foundation slab 161, part of the heat generated by the warm air 71 blown under the floor. Accumulate inside the base slab 161 via an area not covered by 17, 17,...

  In addition, according to the underfloor air conditioning system 10, the air conditioner 13 is stopped or operated at a low output during the day when the normal electricity rate is reached, and the air conditioner 13 is operated at night when the electricity rate becomes low, so that the basic slab 161 is operated. It is possible to use the heat accumulated in the vehicle complementarily.

  Since the charcoal ingots 18, 18,... Are installed under the floor while being lifted from the foundation slab 161, the transfer of the warm air 71 to the foundation slab 161 is not hindered. Heat is effectively stored in the

  As described above, the underfloor air conditioning system according to the present invention has been described based on one embodiment, but a specific configuration is not limited to this embodiment.

  For example, an air circulation fan that promotes air circulation between the first floor living room and the second floor living room may be provided on the second floor of the building. With this configuration, the air-conditioned air is easily sent from the first-floor living room to the second-floor living room, so that the entire building can be more appropriately air-conditioned.

  In addition, even when it is desired to cool the living room, the air circulation fan makes it easier to guide the cool air from under the floor to the first floor living room or from the first floor living room to the second upper living room, so that it is effective for both heating and cooling. Demonstrate the perfect air conditioning function.

  INDUSTRIAL APPLICABILITY The present invention is an underfloor air-conditioning system that enables good air-conditioning, and thus has wide industrial potential.

DESCRIPTION OF SYMBOLS 10 ... Air-conditioning system 11 ... Floor plate 111 ... Opening part 112 ... Floor surface 12 ... Vent 13 ... Air conditioner 131 ... Body part 132 ... Suction port 133 ... Blow-out port 134 ... Temperature sensor 14 ... Installation plate 15 ... Closure plate 151 ... Flat plate Material 152 · Grip 153 · Inner circumferential surface 154 · Outer circumferential surface 155 · Top surface 156 · End 16 · Foundation 161 · Foundation slab 162 · Foundation rising portion 17 · Heat insulation 18 · Charcoal lump 30 · Storage body 31 · Inside Surface part 40 ... Gap 50 ... Building 51, 52 ... Outer wall 53 ... Second floor ceiling 54 ... First floor outer wall upper part 55 ... Air purification device 56 ... Piping 61 ... First floor living room 62 ... Second floor living room 71 ... Hot air 72 ... Warm air

  The present invention relates to an underfloor air conditioning system for controlling the temperature of a living room in a building.

  2. Description of the Related Art Conventionally, an underfloor air-conditioning system has been proposed in which an under-floor air-conditioning system that uniformly warms an entire living room by warming air under the floor so that warm air naturally rises from the floor surface instead of an air-conditioning device that blows warm air into the living room has been proposed.

  Conventionally, as an underfloor air conditioning system, for example, an air conditioner that blows out conditioned air under the floor so that air conditioned from the floor of the building toward the floor flows upward, so that the space under the floor and the space above the floor communicate with each other. 2. Description of the Related Art An underfloor air-conditioning system including a vent formed in a floor panel and a guide pipe for transporting warm air near the vent is known (Patent Document 1).

  According to the underfloor air-conditioning system of Patent Literature 1, since the guide tube for transporting air is provided, the air heated under the floor can be accurately guided to the vicinity of the ventilation port, and the space on the floor can be effectively warmed. It becomes possible.

JP 2000-17470 A

  In the conventional underfloor air conditioning system, since the air conditioner is installed in the space under the floor, there is an introduction restriction that the installation cannot be performed if the height of the space under the floor is smaller than the height of the air conditioner. .

  A temperature sensor used for air-conditioning control of the air conditioner is usually provided inside the air conditioner from the viewpoint of preventing damage and eliminating troublesomeness.

  In conventional underfloor air conditioning systems, the air conditioner is installed under the floor, so the position of the temperature sensor is under the floor, and it is not possible to accurately detect the temperature of the living room and air conditioning may not be performed well. Was.

  In addition, in the conventional underfloor air conditioning system, since the entire air conditioner including the suction port is arranged under the floor, dust and dust falling on the floor surface easily descend toward the suction port and are sucked, Air conditioning failure is likely to occur due to clogging of the suction port.

  In the conventional underfloor air conditioning system, since the air conditioner is located below the floor, maintenance for eliminating clogging of the suction port is not easy.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an underfloor air-conditioning system in which introduction restrictions based on the specifications of a building are relaxed and good air-conditioning is possible.

In order to solve the above-mentioned problem, the invention according to claim 1 includes an air conditioner that air-conditions air and blows the air under the floor so that air-conditioned air flows from under the floor of the building toward the floor, and a space under the floor and the floor. And an underfloor air-conditioning system provided with a vent formed in a floorboard so that the space communicates with the floorboard, wherein the floorboard straddles the air conditioner on the floor and under the floor at a position different from the vent and borders the floorboard. The air conditioner is arranged so as to have a suction port on the floor and a blowout port under the floor in the installed state, between the floor plate and a foundation installed below the floor plate. The air-conditioning air is released, and a ventilation port through which air naturally escapes to the outside is not provided under the floor of the building, and charcoal is provided under the floor of the building. Foundation With underfloor heat storage structure insulation material covering is provided,
Heat is stored under the floor using the air conditioner, and conditioned air is circulated from under the floor to above the floor to air- condition the entire building including below the floor and above the floor .

The “floor space” is a living room or another space that communicates with the living room, and it is sufficient that at least the air inlet of the air conditioner can protrude from the floor.

The term “foundation” includes not only a foundation slab extending toward the ground, but also a foundation rising portion when a foundation rising portion rising from the outer peripheral edge of the foundation slab is provided.

The "heat insulating material" may be any material having a higher heat insulating effect than the foundation. For example, if the foundation is concrete, any material having a higher heat insulating effect than concrete may be used.

  The invention according to claim 2 relates to the underfloor air-conditioning system according to claim 1, wherein a closing plate that fills a gap formed between the floor plate and the air conditioner is provided.

  The invention according to claim 3 relates to the closing plate according to claim 2, wherein the closing plate is detachably fitted into a gap formed between the floor plate and the air conditioner. It has a grip portion that can be gripped on the upper surface portion.

  The “grip” is provided separately from the closing plate or formed as a part of the closing plate, protrudes above the upper surface of the closing plate, and is closed compared to the case where only the upper surface of the closing plate is provided. This is the part that makes it easy to remove the board.

  The invention according to claim 4 relates to the air conditioner according to any one of claims 1 to 3, wherein the air conditioner is used for air conditioning control of the air conditioner, and is provided outside the housing of the main body. And having a temperature sensor arranged on the floor.

  "Outside the housing of the main body" is a position distant from the housing of the main body or an outer surface of the housing of the main body.

  The invention according to claim 5 relates to the underfloor air-conditioning system according to any one of claims 1 to 4, wherein the underfloor air-conditioning system includes an air circulation fan that promotes air circulation between living rooms of the building. And

The invention according to claim 6 is characterized in that the charcoal is installed by being lifted from an upper surface of the foundation slab.

  According to the first aspect of the present invention, since the air conditioner includes the ventilation hole formed in the floorboard and the air conditioner that air-conditions the air and blows the air under the floor, for example, in the case of heating, the air conditioner is heated by the air conditioner. The warm air blown out under the floor not only flows from under the floor to the floor through the ventilation opening of the building, but also the floor surface can be warmed from under the floor by the warm air.

  For this reason, the air-conditioning effect that cannot be obtained with an air-conditioning apparatus in which the outlet is on the floor like an air-conditioning apparatus mounted on a wall or placed on a floor surface, that is, a living room using hot or cold heat released from the floor surface And uniform air conditioning without temperature unevenness can be achieved. Since the warm air rises due to the specific gravity, the underfloor air-conditioning system according to the present invention is suitable for heating a living room.

  Further, according to the present invention, since the air conditioner can be installed across the floor and below the floor with the floor board as a boundary, the height dimension of the space under the floor is smaller than the height dimension of the air conditioner. Even if an air conditioner is installed, an underfloor air conditioning system can be introduced.

  Further, according to the present invention, by disposing the air conditioner protruding from the floor below the floor, it is possible to eliminate the problem that the temperature sensor built in the air conditioner is buried in the space below the floor as in the conventional underfloor air conditioning system. It is possible to accurately sense the temperature of the living room and perform good air conditioning.

  Further, according to the present invention, since it has a suction port on the floor, it is difficult for dust or dust falling on the floor surface to be sucked into the suction port, and it is possible to suppress a decrease in air conditioning performance due to clogging of the suction port. Easy to maintain air conditioning.

  In addition, unlike the conventional underfloor air conditioning system, the suction port is located on the floor, so that maintenance for eliminating clogging is also facilitated.

As a result, according to the first aspect of the present invention, an underfloor air-conditioning system in which introduction restrictions based on building specifications are relaxed and good air-conditioning is possible is realized.

In addition, since charcoal is provided under the floor, even if the space under the floor is closed, moisture under the floor is absorbed by the carbon material and humidity under the floor is adjusted.

Therefore, according to the present invention, the living room can be air-conditioned by warming or cooling the floor surface more effectively by making the underfloor a closed room, and the underfloor fungus and the woody structure can be rotted under the floor by the humidity control action of the charcoal. Becomes

Further, according to the invention according to claim 6, since the foundation is covered with the heat insulating material except for a part or the whole of the inner bottom surface of the base slab, a part of the heat blown under the floor is a heat insulating material. It accumulates inside the base slab via the uncovered area.

  Normally, a power company must supply power stably regardless of day and night, but the power consumption tends to extremely decrease at night. For this reason, electric power companies often adopt a mechanism in which the electricity generated by lowering the nighttime electricity rate is effectively used without discarding it.

In such a situation, the air conditioner is stopped or operated at a low output during the day when the electricity rate becomes normal, and the air conditioner is operated at night when the electricity rate becomes low, and the heat stored in the base slab is stored. Can be used complementarily.

Therefore, the living room can be air-conditioned by warming or cooling the floor surface more effectively by making the floor underneath a closed room, and not only can the fungus under the floor and the wood structure be rotten by the humidity control of charcoal, The base slab is used as a heat storage tank, and it is possible to reduce the cost of air conditioning by effectively using nighttime power.

  According to the second aspect of the present invention, the air-conditioned air is less likely to leak out of the gap by the closing plate that fills a gap that may occur when the air conditioner is installed.

  Therefore, according to the present invention, the floor surface is easily heated or cooled from under the floor effectively, and the effect of uniform air-conditioning using the warm or cold heat of the floor without unevenness in the temperature of the living room is enhanced.

  According to the third aspect of the present invention, since the closing plate is removable, it becomes easy to take out the air conditioner at the time of maintenance such as removal of clogging of the air outlet of the air conditioner or replacement of the air conditioner.

  Here, the step is prevented from occurring between the closing plate and the floor surface to prevent occupants from tripping and falling to enhance safety, and also to minimize the gap between the air conditioner and the floor plate as much as possible. If the floor surface is effectively warmed from under the floor, it becomes difficult to remove the closing plate, which makes maintenance and replacement of the air conditioner difficult.

  On the other hand, according to the present invention, since the holding portion is provided on the closing plate, the closing plate can be easily removed. Therefore, according to the present invention, it is possible to improve the safety by eliminating the steps and to effectively warm or cool the floor surface by eliminating gaps as much as possible, and to achieve both the easy maintenance and replacement of the air conditioner. Can be planned.

  According to the fourth aspect of the present invention, since the temperature sensor used for air-conditioning control of the air conditioner is disposed outside the housing of the main body and on the floor, the temperature sensor provided inside the air conditioner is provided. Compared with the sensor, it becomes possible to more accurately detect the temperature of the living room, so that the air conditioning can be performed better.

  According to the fifth aspect of the present invention, even in a building having two or more floors, air-conditioned air can be supplied from under the floor or from the first floor living room to the upper floor by the air circulation fan that promotes air circulation between the living rooms. , It is easy to be sent to the, and the whole building can be air-conditioned better.

  In addition, even if it is desired to cool the living room, the air circulation fan makes it easy to guide the cool air to the upper floor, and an underfloor air-conditioning system that exerts an effective air-conditioning function in both heating and cooling is realized. .

According to the invention of claim 6, since the charcoal is installed under the floor while being lifted from the foundation slab, the transfer of warm air to the foundation slab is not hindered, and the foundation slab is not hindered. Heat is effectively stored in the

FIG. 1 is a view showing one embodiment of an underfloor air conditioning system according to the present invention, and is a longitudinal sectional view of a building to which the underfloor air conditioning system is applied. FIG. 2 is a diagram showing an air conditioner installation site in the underfloor air conditioning system of the present embodiment, and is a partially enlarged view of FIG. FIG. 3 is a front perspective view of the air conditioner installation site in the underfloor air conditioning system of the present embodiment as viewed from above the floor, and is a diagram illustrating a structure of a floor plate. FIG. 4 is a front perspective view of the air conditioner installation site in the underfloor air-conditioning system according to the present embodiment as viewed from above the floor, and is a diagram illustrating a structure of a closing plate. FIG. 5 is a perspective view of a closing plate constituting the underfloor air-conditioning system of the present embodiment.

  An underfloor air-conditioning system according to the present invention will be described in detail based on an embodiment with reference to the accompanying drawings.

  The underfloor air-conditioning system of the present embodiment is configured so that the air-conditioned device that air-conditions and blows air under the floor, and the space under the floor and the space on the floor communicate with each other so that the air-conditioned air flows from under the floor of the building toward the floor. And an air vent formed in a floorboard.

  FIG. 1 is a longitudinal sectional view of a building to which the underfloor air-conditioning system of the present embodiment is applied, and FIG. 2 is an enlarged view of a part P in FIG. As shown in FIG. 1, the underfloor air-conditioning system 10 of the present embodiment is applied to a two-story detached house type building 50.

  As shown in FIGS. 1 and 2, the underfloor air-conditioning system 10 includes a floor plate 11, a vent 12, an air conditioner 13, an installation plate 14, a closing plate 15, a foundation 16, heat insulating materials 17, 17. , 18...

FIG. 3 is a front perspective view of the air conditioner installation site of FIG. 2 as viewed from above the floor, and shows a state where the closing plate 15 of FIG. 2 is removed.
As shown in FIG. 3, the floor panel 11 of the underfloor air conditioning system 10 has an opening 111 that does not contact the wall 51 shown in FIG. Using this opening 111, as shown in FIG. 2, the air conditioner 13 can be installed over the floor and under the floor with the floor plate 11 as a boundary.

  As shown in FIG. 1, the vent 12 of the underfloor air-conditioning system 10 is formed at a position adjacent to an outer wall 52 on the opposite side facing the outer wall 51 of the building 50 in which the air conditioner 13 is provided.

  As shown in FIG. 2, the air conditioner 13 of the underfloor air-conditioning system 10 is arranged so as to have a suction port 132 on the floor and a blowout port 133 below the floor in a state where the main body 131 is installed.

  As shown in FIG. 2, the main body 131 of the air conditioner 13 is fixed to a wooden installation plate 14 attached inside the outer wall 51. The main body 131 and the installation plate 14 are in close contact with each other so that no gap is formed between the main body 131 and the installation plate 14.

  As shown in FIG. 3, the air conditioner 13 is used for air conditioning control of the air conditioner 13, and has a temperature sensor 134 disposed outside the housing of the main body 131 and on the floor. The temperature sensor 134 is constituted by a thermistor.

  As shown in FIG. 3, the temperature sensor 134 of the air conditioner 13 is attached to the inner surface 31 of the wooden housing 30 that houses the body 131 of the air conditioner 13 so as to surround the body 131 from the side to the top. Have been.

  In addition, a sliding door (not shown) is provided to cover the front surface of the housing 30, so that the air conditioner 13 can be concealed while preventing the air suction by the air conditioner 13 from being hindered. .

  FIG. 4 is a front perspective view of the air conditioner installation site of FIG. 2 as viewed from above the floor, and FIG. 5 is a perspective view of a closing plate constituting the air conditioner installation site.

  As shown in FIG. 4, the closing plate 15 of the underfloor air-conditioning system 10 has a flat plate 151 and a grip 152.

  As shown in FIG. 5, the flat plate member 151 of the closing plate 15 is formed in a U-shape as a whole, and the opening of the floor plate 11 remaining in a state where the main body 131 of the air conditioner 13 shown in FIG. A shape and a size for filling the portion 111 (gap 40) are set.

  The flat plate 151 is formed such that the ends 156 and 156 shown in FIG. 5 are in close contact with the installation plate 14 shown in FIG. That is, the flat plate member 151 is configured to completely close the gap 40 shown in FIG.

  In addition, as shown in FIG. 4, the flat plate member 151 is inserted between the upper surface 155 and the floor surface 112 in a state of being fitted into the gap 40 (FIG. 3) formed between the floor plate 11 and the air conditioner 13. It is formed so that a step does not occur.

  As shown in FIGS. 4 and 5, the gripper 152 of the closing plate 15 is provided at a central portion on the front side of the air conditioner 13, which is on the near side, of the upper surface 155 of the flat plate 151, and can be gripped by metal. It consists of a handle.

  As shown in FIG. 1, the foundation 16 of the underfloor air-conditioning system 10 includes a reinforced concrete foundation slab 161 that extends toward the ground 80 and supports the building 50, and a foundation rising part 162 that rises from the outer peripheral edge of the foundation slab 161. It is configured. Below the floor, which is an area surrounded by the floorboard 11 and the foundation 16, there is no ventilation port through which air naturally escapes to the outside.

  The heat insulating materials 17, 17,... Of the underfloor air conditioning system 10 are made of expanded polystyrene, and cover the outside front surface of the base slab 161 and the inside and outside of the base rising section 162.

  Each of the lump of charcoal 18, 18,... Of the underfloor air-conditioning system 10 is configured by collecting finely crushed charcoal in one lump, and is spaced apart from the upper surface of the base slab 161 under the floor. It is placed in several places.

  In the building 50, as shown in FIG. 1, the second-floor ceiling 53 is mainly provided with a heat insulating material using cellulose, and the first-floor outer wall upper portion 54 is covered with a heat insulating material using foamed plastic and cellulose. I have.

  In addition, the building 50 is provided with an air purifying device 55, so that fresh outside air is constantly taken under the floor for 24 hours. The pipe 56 of the air purifying device 55 is provided so as to penetrate the foundation rising section 162, but is sealed so that no gap is formed between the through hole and the pipe 56, and air flows under the floor of the building 50. It is designed not to be a vent that naturally escapes to the outside.

Next, effects of the underfloor air conditioning system 10 will be described.
For example, when heating the first floor living room 61 and the second floor living room 62, the air conditioner 13 of the underfloor air conditioning system 10 is operated in the heating mode.

  The air 73 in the first-floor living room 61 is taken into the air conditioner 13, becomes hot air 71, and is blown out under the floor.

  The warm air 71 blown out of the air conditioner 13 moves under the floor while warming the floor plate 11, and flows through the vent 12 provided adjacent to the outer wall 52 opposite to the outer wall 51 where the air conditioner 13 is installed. Go out to living room 61 on the first floor.

  At this time, since the vent 12 is provided adjacent to the outer wall 52 on the opposite side to the outer wall 51 where the air conditioner 13 is installed, the diffusion range of the warm air 71 under the floor is secured to the maximum and the floorboard 11 is heated almost entirely.

  The warm air 72 rises from the floor panel 11 that has been entirely heated by the warm air 71, and the first floor living room 61 is evenly heated without temperature unevenness.

  In addition, the warm air 71 which came out of the vent 12 rises to the second floor living room 62 while warming the first floor living room 61, and the warm air 72 rising from the floorboard 11 also rises to the second floor living room 62. The second floor living room 62 is also warmed.

  Further, according to the underfloor air conditioning system 10, the closing plate 15 that fills the gap 40 that may occur when the air conditioner 13 is installed makes it difficult for the warm air 61 to leak from the gap 40.

  For this reason, according to the underfloor air-conditioning system 10, the floor surface is effectively warmed from under the floor, and the effect of uniform air-conditioning using the heat of the floor surface without unevenness in temperature in the first floor living room 61 is enhanced.

  Further, according to the underfloor air conditioning system 10, since the closing plate 15 is removable, the air conditioning device 13 can be taken out at the time of maintenance such as removal of clogging of the outlet 133 of the air conditioning device 13 or replacement of the air conditioning device 13. Become.

  Further, since the holding portion 152 is provided on the closing plate 15, the closing plate 15 can be easily removed. Therefore, according to the underfloor air-conditioning system 10, the step between the floor plate 11 and the closing plate 15 is eliminated to enhance safety and to effectively warm the floor surface with as little clearance as possible. Maintenance and replacement can be facilitated.

  Further, according to the underfloor air-conditioning system 10, the temperature sensor 134 used for air-conditioning control of the air-conditioning device 13 is disposed outside the housing of the main body 131 and on the floor. Compared with the temperature sensor provided inside, it is possible to more accurately detect the temperature of the first-floor living room 61, so that heating is performed more favorably.

  Further, according to the underfloor air-conditioning system 10, the air under the floor of the building 50 is not provided with a vent that naturally escapes to the outside, and the space under the floor becomes a closed room, so that the air is blown under the floor from the outlet 133 of the air conditioner 13. The heated warm air 71 hardly leaks to the outside of the building, so that the floor can be more effectively heated and the first floor living room 61 and the second floor living room 62 can be heated.

  Moreover, since the lump of charcoal 18 is provided under the floor, the moisture under the floor is absorbed by the carbonaceous material and the humidity under the floor is adjusted even if the space under the floor is closed. For this reason, it is possible to warm the floor more effectively by making the underfloor a closed room, and it is possible to prevent mold under the floor and rot the wooden structure by the humidity control of the charcoal ingots 18, 18,.

  In addition, according to the underfloor air conditioning system 10, since the foundation 16 is covered with the heat insulating materials 17, 17,... Except for the inner bottom surface of the foundation slab 161, part of the heat generated by the warm air 71 blown under the floor. Accumulate inside the base slab 161 via an area not covered by 17, 17,...

  In addition, according to the underfloor air conditioning system 10, the air conditioner 13 is stopped or operated at a low output during the day when the normal electricity rate is reached, and the air conditioner 13 is operated at night when the electricity rate becomes low, so that the basic slab 161 is operated. It is possible to use the heat accumulated in the vehicle complementarily.

  Since the charcoal ingots 18, 18,... Are installed under the floor while being lifted from the foundation slab 161, the transfer of the warm air 71 to the foundation slab 161 is not hindered. Heat is effectively stored in the

  As described above, the underfloor air conditioning system according to the present invention has been described based on one embodiment, but a specific configuration is not limited to this embodiment.

  For example, an air circulation fan that promotes air circulation between the first floor living room and the second floor living room may be provided on the second floor of the building. With this configuration, the air-conditioned air is easily sent from the first-floor living room to the second-floor living room, so that the entire building can be more appropriately air-conditioned.

  In addition, even when it is desired to cool the living room, the air circulation fan makes it easier to guide the cool air from under the floor to the first floor living room or from the first floor living room to the second upper living room, so that it is effective for both heating and cooling. Demonstrate the perfect air conditioning function.

  INDUSTRIAL APPLICABILITY The present invention is an underfloor air-conditioning system that enables good air-conditioning, and thus has wide industrial potential.

DESCRIPTION OF SYMBOLS 10 ... Air-conditioning system 11 ... Floor plate 111 ... Opening part 112 ... Floor surface 12 ... Vent 13 ... Air conditioner 131 ... Body part 132 ... Suction port 133 ... Blow-out port 134 ... Temperature sensor 14 ... Installation plate 15 ... Closure plate 151 ... Flat plate Material 152 · Grip 153 · Inner circumferential surface 154 · Outer circumferential surface 155 · Top surface 156 · End 16 · Foundation 161 · Foundation slab 162 · Foundation rising portion 17 · Heat insulation 18 · Charcoal lump 30 · Storage body 31 · Inside Surface part 40 ... Gap 50 ... Building 51, 52 ... Outer wall 53 ... Second floor ceiling 54 ... First floor outer wall upper part 55 ... Air purification device 56 ... Piping 61 ... First floor living room 62 ... Second floor living room 71 ... Hot air 72 ... Warm air

Claims (6)

An air conditioner that air-conditions the air and blows it under the floor so that the air-conditioned air flows from under the floor to the floor, and a vent formed in the floorboard so that the space under the floor and the space on the floor communicate with each other. In the underfloor air conditioning system with
The floor panel, at a position different from the vent, is configured to be able to install the air conditioner across the floor and under the floor with the floor panel as a boundary,
The underfloor air-conditioning system is characterized in that the air conditioner is installed so as to have a suction port on the floor and a blow port under the floor when installed.   The underfloor air conditioning system according to claim 1, further comprising a closing plate that fills a gap formed between the floor plate and the air conditioner.   The closure plate according to claim 2, wherein the closure plate is detachably fitted into a gap formed between the floor plate and the air conditioner, and has a grip portion that can be gripped on an upper surface portion of the closure plate. The underfloor air conditioning system as described.   The said air conditioner is used for the air conditioning control of the said air conditioner, and has a temperature sensor arrange | positioned on the floor outside the housing | casing of a main-body part, The claim 1 characterized by the above-mentioned. An underfloor air-conditioning system according to claim 1.   The underfloor air conditioning system according to any one of claims 1 to 4, further comprising an air circulation fan that promotes air circulation between the living rooms of the building. A ventilation opening through which air naturally escapes to the outside under the floor of the building is not provided, and charcoal is provided under the floor of the building, and the foundation is covered except for a part or all of the base slab inner bottom surface of the foundation. The underfloor air conditioning system according to any one of claims 1 to 5, further comprising an underfloor heat storage structure provided with a heat insulating material.