JP3249398U - Air conditioning equipment - Google Patents

Abstract

To provide an air conditioning system that supplies conditioned air under the floorboards of a room to be air-conditioned, can adjust the temperature of the floorboards, and is more economical to use without using liquid as a heat medium. Also, to provide an air conditioning system that supplies conditioned air that adjusts the temperature of the floorboards to the room to perform air conditioning.
[Solution] An air conditioning equipment 1 having an inter-foundation insulation layer 5 arranged lower between sills 72 or between the girder beams around the floorboards 81 of a room 8 to be air-conditioned, which is surrounded by vertical walls 80, a ceiling 81 and floorboards 82, a plurality of joists horizontally installed upper between the sills 72 or between the girder beams, a plurality of lower joists horizontally installed at intervals on the plurality of joists, a plurality of upper joists horizontally installed in a lattice pattern on the plurality of lower joists and supporting the floorboards 82, a joist space 4 formed between the joists and the upper and lower joists, sandwiched above and below by the inter-foundation insulation layer 5 and the floorboards 82, and a conditioned air supply source 6 which supplies conditioned air 9 to the joist space 4.
[Selected Figure] Figure 1

Description

This invention relates to indoor air conditioning technology, and in particular to air conditioning equipment that supplies conditioned air under the floor and can air-condition a room through the floor.

Conventional air conditioners are generally equipped with a pressure reducer, heat exchanger, compressor, etc. in the outdoor unit and indoor unit, circulate refrigerant, and exchange heat between the indoors and outdoors. In summer, the air conditioner typically releases heat from the outdoor unit and the indoor unit cools the indoor air, and in winter, the heater in the indoor unit warms the air inside the room. However, even when cool air is circulated indoors in summer, if the floor surface temperature remains high, it is difficult to achieve a cooling effect, and in winter, if the floor surface temperature remains low, it is difficult to achieve a heating effect.

The following air conditioning technologies have already been developed to solve the above-mentioned problems.
For example, Patent Document 1 (JP 2024-21283 A) describes an air supply unit provided at the bottom of a side surface facing an air-conditioned space, which includes a cover member that forms an internal space and includes an outlet that communicates the internal space with the air-conditioned space, and a switching member that opens and closes the lower part of the internal space and switches the communication state between the internal space and the air-conditioned space, and the switching member is configured to close the lower part of the internal space during cooling operation and open the lower part of the internal space during heating operation, and the outlet maintains an open state without being blocked during the heating operation. An air supply unit, an air conditioning system, and an air conditioning method are shown in which air is blown out from the lower end of the internal space into the air-conditioned space during heating operation, and the air spreads far along the floor of the air-conditioned space due to the Coanda effect.

Patent Document 2 (JP Patent Publication 2019-203681A) discloses a floor heating/cooling device having a heat transfer panel, a hose material that contacts the underside of the heat transfer panel and through which liquid flows in the inner diameter, and a heat source unit that switches between floor cooling and floor heating and circulates temperature-controlled liquid to the heat transfer panel through the hose material. The hose material is formed into a ring shape from an elastic material, and is sandwiched at a predetermined interval between the base member on which the heat transfer panel is placed and the heat transfer panel, bending in the radial direction of the hose material so that the outer circumferential surface of the hose material becomes a flat surface and comes into contact with the heat transfer panel. A floor heating/cooling device is shown that uses a general hose material and has a structure that increases the contact area of the outer circumferential surface that serves as the contact surface for heat transfer in the hose material.

JP 2024-21283 A JP 2019-203681 A

However, the air supply unit, air conditioning system, and air conditioning method of Patent Document 1 (JP Patent Publication No. 2024-21283) have the disadvantage that the air blown along the floor surface cannot heat or cool the floor surface that is in the shadow of an obstacle or obstruction. In addition, the floor heating and cooling device of Patent Document 2 (JP Patent Publication No. 2019-203681) has piping under the floor for circulating a liquid that serves as a heat medium, so it requires a water heater or heater to heat the liquid, and further has the disadvantage that there is a risk of liquid leakage due to aging or damage, resulting in high maintenance costs.

In view of the above-mentioned circumstances, the present invention provides an air conditioning system that supplies conditioned air under the floorboards of a room to be air-conditioned, can adjust the temperature of the floorboards evenly, and can be used more economically without using liquid as a heat medium. Also, an air conditioning system is provided that supplies conditioned air that adjusts the temperature of the floorboards to the room to be air-conditioned, and air-conditions the room. An air conditioning system is provided in which the supply source of the conditioned air is a geothermal heat exchange chamber, does not use fossil energy, is environmentally friendly, and achieves heating and cooling of the room to be air-conditioned more economically. Furthermore, an air conditioning system is provided that uses the conditioned air supplied from the geothermal heat exchange chamber to melt and remove snow cornices on the eaves.

This invention provides an air conditioning system that includes an inter-sill insulation layer arranged between sills or between girder beams near the bottom of the floorboards of a room to be air-conditioned, surrounded by vertical walls, a ceiling, and floorboards, a plurality of joists horizontally installed between the sills or between the girder beams near the top, a plurality of lower joists horizontally installed at intervals on the plurality of joists, a plurality of upper joists horizontally installed in a lattice pattern on the plurality of lower joists and supporting the floorboards, a joist space formed between the joists and the upper and lower joists, sandwiched above and below by the inter-sill insulation layer and the floorboards, and a conditioned air supply source that supplies conditioned air to the joist space.

The multiple lower joists and the multiple upper joists laid horizontally in a grid pattern on the multiple lower joists ensure a joist space between the base insulation layer and the floorboards, allowing the conditioned air to flow, and therefore the temperature of the floorboards in the room to be air-conditioned can be adjusted evenly. The base insulation layer seals off the bottom of the joist space to prevent the conditioned air from leaking into the foundation space surrounded by the foundation. The base insulation layer insulates and retains heat so that the heat of the conditioned air that flows into the joist space does not escape into the foundation space.

The floorboards of the room to be air-conditioned can be structural floorboards such as plywood installed on the multiple upper joists, and floor finishing materials such as flooring, carpet, tatami, and other materials installed on the structural floorboards. The installation interval between the lower joists of the multiple lower joists can be 30 to 45 cm, similar to that of a typical house. The installation interval between the upper joists of the multiple upper joists can be 30 to 45 cm, similar to that of a typical house. The conditioned air supply source can be a typical air conditioner, cooling device, heating device, etc.

The present invention may be an air conditioning system having an air vent that penetrates the floorboard or communicates with the vertical wall and connects the joist space and the room.
The vent can supply conditioned air from the joist space to the room, thereby conditioning the room. The vent penetrating the floorboard can be a slit-shaped gap. The vertical wall can have a flow passage disposed within its thickness dimension, and the vent can be an opening having a filter, a louver, a louver, or the like. The vent can have, for example, a louver or a valve, and can adjust the degree of opening and closing.

The present invention can be an air conditioning system in which the conditioned air supply source has a geothermal heat exchange chamber buried within a depth range exceeding the freezing depth, an air inlet pipe that takes air into the geothermal heat exchange chamber, an air vent pipe that connects the geothermal heat exchange chamber and the joist space, and a blower that sends air from the air inlet pipe to the air vent pipe.
By making the conditioned air supply source a geothermal heat exchange room, an air conditioner or water heater is not required, and air conditioning using geothermal heat is realized, which not only reduces utility costs but also cuts maintenance costs, making it more economical to use.

The present invention can be an air conditioning system that has a discharge pipe that is arranged under the sheathing board along the eaves and connected to the underground heat exchange chamber, and a snow extinguishing heat container that is arranged under the sheathing board along either the depth range of the eaves or the depth range where snow cornices can form from the eaves and connected to the discharge pipe.

The snow-extinguishing heat container receives conditioned air from the discharge pipe and heats the underside of the sheathing board, heating the area of the sheathing board near the eaves and melting the snow cornice at the eaves of the roof. By eliminating the snow cornice, it is possible to prevent snow leakage.

The snow-extinguishing heat container is box-shaped or bag-shaped and placed under the sheathing boards over either the depth range of the eaves or the depth range where snow cornices can form from the eaves, eliminating snow accumulation, snow cornices, and icicles at the eaves and sealing off warm air from escaping to the ridge side under the rafters and sheathing boards. By confining the warm air to the area near the eaves, Suga leakage is prevented. The discharge pipe has multiple small holes drilled in the connecting wall to the snow-extinguishing heat container, arranged along the ridge direction from the discharge pipe into the snow-extinguishing heat container, supplying conditioned air uniformly along the ridge direction. The multiple small holes are set to be few or small in the range of high conditioned air pressure in the discharge pipe, and many or large in the range of low pressure, allowing conditioned air to be supplied more evenly along the ridge direction.

The air conditioning system of the present invention has the excellent effect of supplying conditioned air under the floorboards of the room to be air-conditioned, allowing the temperature of the floorboards to be adjusted evenly, reducing maintenance costs, and providing an air conditioning system that can be used more economically. In addition, an air conditioning system can be provided in which the conditioned air that adjusts the temperature of the floorboards is supplied to the room to be air-conditioned, thereby conditioning the room. By using a geothermal heat exchange chamber as the supply source of the conditioned air, it is possible to provide an air conditioning system that does not use fossil energy, is environmentally friendly, and achieves heating and cooling of the room to be air-conditioned more economically. Furthermore, it is possible to provide an air conditioning system that uses the conditioned air supplied from the geothermal heat exchange chamber to melt and remove snow cornices on the eaves.

A cross-sectional view showing a building 7 incorporating an air conditioning system 1. A plan view showing the underground heat exchange chamber 600 and the underground water heat storage tank 620. FIG. 1 is an enlarged cross-sectional view of a floor space 4 of an air conditioning system 1. FIG. 1 is an enlarged cross-sectional view of an eaves 76 of the air conditioning equipment 1. A block diagram showing an example of an air conditioning system 1.

The air conditioning system according to this embodiment will be described in detail below with reference to the drawings. In particular, this embodiment is an air conditioning system 1 having an inter-foundation insulation layer 5 arranged between the foundations 72 or between the girder beams around the floorboards 82 of a room 8 to be air-conditioned, which is surrounded by vertical walls 80, a ceiling 81, and floorboards 82, a plurality of joists 73 horizontally arranged between the foundations 72 or between the girder beams, a plurality of lower joists 2 horizontally arranged at intervals on the plurality of joists 73, a plurality of upper joists 3 horizontally arranged in a lattice shape on the plurality of lower joists 2 and supporting the floorboards 82, a joist space 4 formed between the joists 73 and the upper and lower joists 2, 3, which are sandwiched above and below by the inter-foundation insulation layer 5 and the floorboards 82, and a conditioned air supply source 6 that supplies conditioned air 9 to the joist space 4.

As shown in Figures 1 to 5, the air conditioning equipment 1 is incorporated into the building 7, which has a roof 75 on top of at least one room 8 surrounded by vertical walls 80, a ceiling 81, and floorboards 82, and preferably the roof 75 has a rain gutter 750. Below the inter-foundation insulation layer 5, there is a foundation space 700 surrounded by a foundation 70 that supports the foundation 72, and the foundation 70 has a foundation vent 71 that takes in outside air into the foundation space 700. The building 7 can be, for example, a wooden house 7.

1 and 3, the inter-foundation insulation layer 5 is disposed below between the foundations 72 (or between the girder beams in the case of rooms on the second floor or higher) located below the periphery of the floorboards 82 of the room 8 to be air-conditioned. The inter-foundation insulation layer 5 is composed of, for example, a plurality of support beams 50 stretched across the lower end of the foundations 72, a ventilation sheet 51 such as nonwoven fabric or cloth laid on the plurality of support beams 50, a heat insulator 52 such as glass wool or urethane foam installed on the ventilation sheet 51, and a heat insulating board 53 such as gypsum board or a composite board of foamed resin and gypsum board installed on the heat insulator 52, and prevents the conditioned air 9 in the joist space 4 from leaking into the foundation space 700. In addition, if the conditioned air 9 stagnating in the joist space 4 is humid, it is also desirable to provide an inter-joist vent 91 in the vertical wall 80 to exhaust the conditioned air 9 with a lot of moisture outside the building 7 in order to prevent deterioration of the building 7. The inter-joist vent 91 can be simply an opening for natural exhaust, or a blower such as a sirocco fan can be provided for correct exhaust. However, it is desirable to configure the inter-joist vent 91 so that the temperature in the joist space 4 can be kept constant.

The inter-foundation insulation layer 5 has the function of an air pressure buffer film (51, 52) in which the ventilation sheet 51 and the insulation body 52 etc. flexibly deform in response to fluctuations in internal air pressure caused by air flow and pulsation, and can attenuate and buffer the air pressure fluctuations in the joist space 4, preventing the occurrence of low-frequency waves, wind noise, noise, vibration, abnormal noise, etc. caused by air blowing. The vibration and noise prevention function of the ventilation sheet 51 and the insulation body 52 etc. can reduce the occurrence of unpleasant wind noise and low-frequency waves in the room 8. The insulation body 52 can be made of continuous foam plastic, glass wool, or other insulation material filled in the gaps connecting the upper and lower parts of the multiple joists 73. The ventilation sheet 51 can be a laminate of nonwoven fabric and porous film.

In the case of the first floor, the plurality of joists 73 are laid horizontally on the plurality of beams 74 and arranged upward between the foundations 72 (or the girder beams in the case of rooms on the second floor or higher). The plurality of lower joists 2 are laid horizontally on the plurality of joists 73 at intervals. The plurality of upper joists 3 are laid horizontally on the plurality of lower joists 2 in a lattice shape in a plan view and support the floorboards 82. The joist space 4 is between the joists 73 and the upper and lower joists 2, 3, which are sandwiched above and below by the inter-foundation insulation layer 5 and the floorboards 82. By constructing the joists in two layers, i.e., the upper and lower joists 2, 3, it is possible to circulate temperature-controlled air between the joists, and by forming the upper and lower joists 2, 3 from wood, it is possible to follow deformations due to aging and prevent the generation of abnormal noise.

The air conditioning equipment 1 has a plurality of vents 605 that penetrate the floorboard 82 and lead from the joist space 4 to the room 8. The floorboard 82 has structural plywood installed on the plurality of upper joists 3 and a floor finishing material such as flooring material laid on the structural plywood. The plurality of vents 605 can be a plurality of holes that penetrate the structural plywood and slit-shaped gaps in the flooring material that connect to the plurality of holes. The air conditioning equipment 1 also has a vent 606 that connects the joist space 4 to the room 8 through the inner and outer walls of the vertical wall 80. The vent 606 has a louver and an opening adjustment valve or an opening and closing valve, and can adjust the air volume. As shown by the arrow in FIG. 1, the conditioned air 9 that flows into the room 8 circulates around the room 8 and is conditioned, then passes through the ventilation slits in the ceiling 81, passes through the attic space, and is discharged to the outdoors.

As shown in Figures 1 and 2, the conditioned air supply source 6 has a geothermal heat exchange chamber 600 buried within a depth range exceeding the freezing depth 610, an air inlet pipe 601 that takes air into the geothermal heat exchange chamber 600, an air vent pipe 602 that connects the geothermal heat exchange chamber 600 and the joist space 4, and a blower 603 that sends air from the air inlet pipe 601 to the air vent pipe 602.

The geothermal heat exchange chamber 600 is buried within a range narrower than the area of the foundation 70 directly below the foundation 70, and a depth range exceeding the freezing depth 610 from the foundation 70. The geothermal heat exchange chamber 600 is made of a reinforced concrete case having a capacity of, for example, 1,000 to 20,000 liters, and has a manhole (not shown) on the top surface that can be opened to the foundation space 700, and is always covered except during maintenance. The capacity of the geothermal heat exchange chamber 600 is not limited to the above numerical value, and can be freely set according to the installation conditions of the building 7 and the site, etc. The geothermal heat exchange chamber 600 can be buried in a plurality of units horizontally or vertically, separated by intervals or partitions. One or more of the geothermal heat exchange chambers 600 can be provided at a position corresponding to the first basement floor. One or more of the geothermal heat exchange chambers 600 can be provided at positions corresponding to the first basement floor and the second basement floor. The geothermal heat exchange chambers 600 can each be connected to multiple units via ventilation pipes.

The air intake pipe 601 rises from the underground heat exchange chamber 600, opens into the foundation space 700, and allows ventilation between the foundation space 700 and the underground heat exchange chamber 600. The air intake pipe 601 is a polyvinyl chloride pipe, and a dust collection filter (not shown) can be installed at the open end facing the foundation space 700 in a replaceable manner. The air intake pipe 601 can be provided with the blower 603 at an appropriate location.

A horizontal ventilation pipe 604 is buried in the ground in the area of the geothermal heat exchange chamber 600 directly below the foundation 70. The horizontal ventilation pipe 604 is preferably buried in a depth range exceeding the freezing depth 610 because it is good for the horizontal ventilation pipe 604 to guide air while taking in geothermal heat. The inner diameter of the horizontal ventilation pipe 604 is preferably set to be less than the length between the upper and lower ends or the horizontal width dimension of the inner wall of the geothermal heat exchange chamber 600, and larger than the inner diameter of the ventilation pipe 602. The horizontal ventilation pipe 604 can be provided with a dust collection filter (not shown) at the suction end connected to the geothermal heat exchange chamber 600 in a removable and replaceable manner. The horizontal ventilation pipe 604 can be provided with the blower 603 at an appropriate position. The freezing depth 610 can be set to a depth of 10 to 30 cm from the ground surface.

The ventilation pipe 602 rises from the geothermal heat exchange chamber 600 or the horizontal ventilation pipe 604, opens into the joist space 4, and ventilates the geothermal heat exchange chamber 600 and the joist space 4. A plurality of the ventilation pipes 602 can be raised from a plurality of locations spaced apart from the horizontal ventilation pipe 604, and can be ventilated to each of the joist spaces 4 on a plurality of floors. The ventilation pipes 602 can be provided with the blower 603 at an appropriate location. The air introduction pipe 601, the ventilation pipe 602, and the horizontal ventilation pipe 604 can all be metal or non-metallic pipes, for example, polyvinyl chloride pipes.

As shown in Figures 1, 2 and 5, an underground water storage and heat storage tank 620 can be installed on the site where the building 7 is built. The underground water storage and heat storage tank 620 is buried, for example, adjacent to at least one of the underground heat exchange chamber 600 or the horizontal ventilation pipe 604, and is buried in a position deeper than the freezing depth 610 in a range outside directly below the foundation 70 so that water can be stored. The underground water storage and heat storage tank 620 is connected to the downstream end of the rain gutter 750 installed on the roof 75 and stores a predetermined amount of rainwater. The underground water storage and heat storage tank 620 is made of a reinforced concrete case, has a capacity of 500 to 2,000 liters, for example 1,000 liters, has a manhole on the top surface that can be opened and closed, and has a drainage channel or drainage pump (not shown) that drains the excess stored water 621 that exceeds the capacity.

As shown in FIG. 5, one or more heat exchangers 660 can be installed submerged in the underground water storage and heat storage tank 620. The underground water storage and heat storage tank 620 can be provided with a water supply pipeline that can supply tap water or purified water from domestic wastewater during droughts. The underground water storage and heat storage tank 620 can be, for example, a tank that also serves as a sedimentation tank (final tank) of a septic tank buried underground, or a tank connected in series between the sedimentation tank (final tank) and a drainage channel, or a tank connected to a pipeline branched off from the drainage channel of the sedimentation tank (final tank) so as to be arranged in parallel with the drainage channel.

As shown in Figs. 1 and 5, the air conditioning equipment 1 has, for example, a renewable energy generator 630. The renewable energy generator 630 can be, for example, a wind power generator 630 installed on the same premises as the building 7, and a solar panel 631 installed on the roof 75 or outer wall 80 of the building 7. The wind power generator 630 and the solar panel 631 are connected to the storage battery 640 installed near the building 7, and the generated electricity is stored.

The storage battery 640 can have a heat pump (not shown) that extracts thermal energy contained in the air to generate electricity in addition to the power supplied from the renewable energy generator 630, and can store electricity. The heat pump can be provided with an air intake or piping that takes in air from either inside or outside the building 7, and can also be provided with a power generation piping 641 that leads conditioned air 9 that has taken in geothermal heat from the geothermal heat exchange chamber 600.

As shown in FIG. 1 and FIG. 5, the air conditioning equipment 1 can install a solar water heater 650 on the roof 75 of the building 7. The solar water heater 650 has an outward pipe 661, a return pipe 662, and a pump 663 between the solar water heater 650 and one of the heat exchangers 660 submerged in the underground water storage and heat storage tank 620. The solar water heater 650, the outward pipe 661, the return pipe 662, and the heat exchanger 660 are filled with antifreeze 622 as a heat medium 622. The pump 663 is connected to the storage battery 640 and receives power, and is driven under the control of a control panel (not shown), circulating the heat medium 622 through the outward and return pipes 661, 662. The control panel includes an input operation unit including an indicator operated by a user, various sensors such as a temperature sensor and a liquid level sensor installed in the solar water heater 650 and other locations, and a control circuit such as a microcomputer having a control program.

The solar water heater 650 can store solar energy in the stored water 621 in the underground water heat storage tank 620, and can transfer high heat to the horizontal ventilation pipe 604, thereby improving the heating effect especially in winter. In addition, the solar water heater 650 can use part or all of the tap water 622 for hot water supply or air conditioning by replacing the heat medium 622 with tap water 622 and piping it to a hot water supply pipe in a bathroom or kitchen or an indoor unit 664 of an air conditioner.

1 and 5, the air conditioning system 1 can have a snow melting panel 670 installed under the roofing material 751 and sheathing board 78 of the roof 75 of the building 7. The snow melting panel 670 has an outward pipe 661, a return pipe 662, and a pump 663 for the snow melting panel 670 between another one of the heat exchangers 660 submerged in the underground water storage and heat storage tank 620. The snow melting panel 670, the outward pipe 661, the return pipe 662, and the heat exchanger 660 are filled with antifreeze 622 as the heat medium 622. The pump 663 for the snow melting panel 670 is connected to the storage battery 640 and receives power supply, and is driven under the control of a control panel (not shown), circulating the heat medium 622 through the outward and return pipes 661 and 662. The control panel includes an input operation unit including an indicator operated by the user, various sensors such as temperature sensors and liquid level sensors installed on the snow melting panel 670 and other locations, and a control circuit such as a microcomputer having a control program. The control panel can be provided separately for the solar hot water heater 650 and the snow melting panel 670, and the blower 603, the solar hot water heater 650, and the snow melting panel 670 can be operated and centrally controlled by the same control panel.

The snow melting panel 670 can use the geothermal heat stored in the water 621 of the underground water heat storage tank 620 to melt snow on the roof 75 of the building 7 by driving the pump 663. The snow melting panel 670 can be installed outside the roof 75, under the pavement of the entrance or parking lot on the same premises as the building 7, and used to melt snow on the ground.

As shown in FIG. 4, the air conditioning equipment 1 is arranged along the inside of the eaves 76 of the building 7 roof 75 in the ridge direction under the sheathing board 78 and rafters 77, and has a discharge pipe 680 connected to the underground heat exchange chamber 600, and a snow extinguishing heat container 681 arranged along the sheathing board 78 and rafters 77 in either the depth range of the eaves 76 or the depth range where snow cornices can form from the eaves 76 and connected to the discharge pipe 680. A plurality of air holes are drilled in the peripheral wall connecting the discharge pipe 680 to the snow extinguishing heat container 681 in the ridge direction, and the air holes supply the conditioned air 9 from the discharge pipe 680 to the snow extinguishing heat container 681. The snow extinguishing heat container 681 is a rectangular box installed along the slope of the sheathing board 78 and rafters 77, and has exhaust holes at both ends facing the gable board.

The conditioned air 9 supplied to the snow-extinguishing heat container 681 through the multiple vents of the discharge pipe 680 warms the eaves 76. The conditioned air 9 that has completed heat exchange in the snow-extinguishing heat container 681 is exhausted to the outside of the gable board through the exhaust hole. The snow-extinguishing heat container 681 can melt the snow cornice of the roof 75 and prevent suga leakage. As shown in Figures 1 and 4, the discharge pipe 680 can supply the conditioned air 9 directly from the underground heat exchange room 600. The discharge pipe 680 can supply the conditioned air 9 from the joist space 4. The discharge pipe 680 can supply the conditioned air 9 from the joist space 4 through the vertical wall 80. The discharge pipe 680 can supply the conditioned air 9 from the room 8. The discharge pipe 680 can supply the conditioned air 9 by the blower 603.

The air conditioning system of this invention can be used in the air conditioning technology, floor heating technology, snow melting technology, etc. of wooden or reinforced concrete houses, prefabricated buildings, commercial facilities, office buildings, factories, warehouses, and other buildings, as well as facilities associated with the above buildings.

LIST OF SYMBOLS 1 Air conditioning equipment 2 Lower joist 3 Upper joist 4 Joist space 5 Insulation layer between foundations 50 Support beam 51 Ventilation sheet 52 Insulation body 53 Insulation board 6 Air conditioning supply source 600 Underground heat exchange chamber 601 Air intake pipe 602 Ventilation pipe 603 Blower 604 Horizontal vent pipe 605 Ventilation hole in floor board 82 606 Ventilation hole in vertical wall 80 610 Freezing depth 620 Underground water heat storage tank 621 Stored water 622 Heat transfer medium (tap water, antifreeze)
630 Renewable energy generator (wind turbine)
631: Solar panel 640: Storage battery 641: Power generation piping 650: Solar hot water heater 660: Heat exchanger 661: Outlet pipe 662: Return pipe 663: Pump 664: Indoor unit 670: Snow melting panel 680: Discharge pipe 681: Snow melting heat container 7: Building 70: Foundation 700: Foundation space 71: Foundation vent 72: Foundation (beam)
73 Same joist 74 Same beam 75 Same roof 750 Same gutter 751 Same roofing material 76 Same eaves 77 Same rafter 78 Same sheathing board 8 Room to be air-conditioned 80 Same vertical wall 81 Same ceiling 82 Same floor board 9 Air conditioning

Claims (4)

A base insulation layer is arranged below the base or girth space around the floor board of a room to be air-conditioned, the room being surrounded by vertical walls, a ceiling, and a floor board;
A plurality of beams horizontally installed at the upper part of the base or girder;
A plurality of lower joists are horizontally laid at intervals on the plurality of joists;
A plurality of upper joists are laid horizontally in a lattice pattern on the plurality of lower joists and support the floorboards;
A joist space formed between the joists and the upper and lower joists, which is sandwiched between the base insulation layer and the floorboards,
and a conditioned air supply source for supplying conditioned air to the floor space.
The air conditioning system according to claim 1 , further comprising a vent hole penetrating the floorboard or communicating with the vertical wall and connecting the joist space with the room.
The conditioned air supply source is
A geothermal heat exchange chamber buried within a depth range exceeding the freezing depth;
An air introduction pipe for introducing air into the underground heat exchange chamber;
A vent pipe connecting the geothermal heat exchange chamber and the joist space;
3. The air conditioning system according to claim 1, further comprising a blower which blows air from the air inlet pipe to the ventilation pipe.
A discharge pipe arranged under the roof board along the eaves and connected to the underground heat exchange chamber;
4. The air conditioning system according to claim 3, further comprising a snow extinguishing heat container arranged along under the roofing boards over either the depth range of the eaves or the depth range where snow cornices can form from the eaves end and connected to the discharge pipe.