JP7209365B2 - Whole building air conditioning system - Google Patents

Description

Article 30, Paragraph 2 of the Patent Act applies Exhibition name: TBS Housing Date: December 15, 2019 ~

The present invention relates to a whole building air-conditioning system for a building having an underfloor space and an attic space. The present invention relates to a central air-conditioning system that prevents unpleasant odors from filling the building.

As a conventional building cooling/heating device 100 (hereinafter referred to as "cooling/heating device 100"), the structure shown in FIG. 6 is known. FIG. 6 is a schematic diagram illustrating the state of the conventional cooling/heating device 100 during cooling.

As shown in FIG. 6, in the cooling/heating device 100, ventilation holes 105 and 106 are provided in the part facing the indoor side of the outer wall panel 102 of the house 101, where the underfloor 103 and the attic 104 are entered, respectively. A fan 107 and a duct 108 are arranged in the underfloor 103 so as to communicate with the ventilation hole 105 . That is, in the cooling/heating device 100 , the underfloor 103 and the attic 104 communicate with each other through the space inside the outer wall panel 102 .

With this structure, the cooling/heating device 100 operates the fan 107 as indicated by an arrow 109 in the summer to send cold air from the underfloor 103 to the attic 104 through the outer wall panel 102 . In the attic 104, hot air from the roof 110 due to solar radiation can be expelled to the outside by the cold air, and by lowering the temperature of the attic 104, the cooling efficiency of the entire house 101 is improved.

On the other hand, in the cooling/heating device 100, the fan 107 is reversely driven in winter to fill the underfloor 103 with warm air from the attic 104, obtain the effect of floor heating, and sweep away the moisture in the underfloor 103. (See Patent Document 1, for example).

Japanese Utility Model Publication No. 55-29374

As described above, in the cooling/heating device 100, the driving direction of the fan 107 is appropriately rotated forward or reversed, so that the air under the floor 103 and the air in the attic 104 flow into each other through the outer wall panel 102. be able to.

As described above, in the cooling/heating device 100, in order to lower the temperature of the attic 104 in summer, the fan 107 blows cold air from the underfloor 103 to the attic 104. There is a limit, and continuous operation sucks outdoor air into the underfloor 103, so there is a problem that the temperature of the attic 104 space gradually approaches the same as the outdoor temperature.

In addition, in the air conditioner 100, particularly in the summer, air with an unpleasant odor due to humidity in the underfloor 103 is blown into the attic 104, and the air with an unpleasant odor is released through gaps in the ceiling and the like. In some cases, the air flows from the attic 104 to the living room 111 . In this case, there is a problem that the unpleasant smell fills the living room 111 and makes the resident feel uncomfortable. Similarly, even in winter, until the moisture in the underfloor 103 is wiped out, the unpleasant smell of air may flow into the living room 111 from the underfloor 103 through the gaps in the floor, etc., causing discomfort to the occupants. There is a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is intended to improve the air conditioning efficiency of an air conditioner by allowing the inside air of the underfloor space and the attic space to flow into each other as appropriate, and to prevent unpleasant odors in the underfloor space from entering the building. To provide a central air-conditioning system that prevents overfilling.

A central air-conditioning system of the present invention comprises a plurality of air conditioners arranged inside a building, and arranged inside the building to exchange heat between the outside air taken in from the outside of the building and the inside air inside the building. a heat exchanger for supplying the outside air to the air conditioner and discharging the inside air to the outside of the building; a duct that has the other opening in the space and communicates the underfloor space and the attic space; or a reversible fan for blowing the inside air of the attic space to the underfloor space, wherein the building includes a plurality of living rooms and a plurality of non-living rooms, and at least one of the non-living rooms has a ceiling is formed with a first air circulation portion through which the inside air of the attic space circulates, and an exhaust port of the heat exchanger, and the inside air of the underfloor space is provided on the floor of at least one of the living rooms. A circulating second air circulation portion is formed.

Further, in the central air-conditioning system of the present invention, the building has two stories, and the air conditioner installed in the attic space is installed in at least the living room or the non-living room on the second floor of the building. The air conditioner installed in the space above the ceiling of the building is supplied with conditioned air through an air supply opening, and the air supply opening installed in at least the living room or the non-living room on the first floor of the building. It is characterized by supplying air-conditioned air through.

Further, in the central air-conditioning system of the present invention, the first air circulation section is not formed in the living room on the second floor of the building.

Further, in the central air-conditioning system of the present invention, the forward/reverse fan blows the inside air of the attic space to the underfloor space through the duct during the heating operation of the air conditioner.

Further, in the central air-conditioning system of the present invention, the forward/reverse fan blows the inside air in the underfloor space to the attic space through the duct during the cooling operation and the blowing operation of the air conditioner. Characterized by

Further, in the central air-conditioning system of the present invention, when the air conditioner is stopped, the forward/reverse fan blows the inside air in the underfloor space to the attic space, and the outside air taken in by the heat exchanger is The air is blown into the building via an air conditioner.

The whole building air conditioning system of the present invention includes a duct that communicates the underfloor space and the attic space, and blows the inside air of the underfloor space to the attic space through the duct, or blows the inside air of the attic space to the underfloor space. It has a top-bottom convection system with a reversing fan that rotates. In the vertical convection system, the inside air including the conditioned air from the air conditioner circulates inside the building via the first and second air circulation units. With this air conditioning system, it is possible to maintain the inside air in the space under the floor and in the attic space at an appropriate temperature even in summer and winter, improving the air conditioning efficiency of the air conditioner and improving the comfort of the residents. . In addition, part of the shy air that flows from the attic space to the non-living room is immediately discharged by the heat exchanger, making it difficult for the unpleasant odor of the shy air from the underfloor space to flow into the living room, causing discomfort to the residents. is prevented.

In addition, in the whole building air conditioning system of the present invention, the inside air in the attic space where the air conditioner is installed is maintained at an appropriate temperature, and by creating a flow of inside air and preventing the inside air from being clogged, the air conditioner in the attic space The efficiency of air conditioning is improved, and although it is a whole building air conditioning system, it is possible to correspond to the air conditioning temperature desired by each occupant in each room on the first and second floors.

In addition, in the central air-conditioning system of the present invention, since the first air circulating unit is not provided in the rooms on the second floor, it is difficult to hear conversations, music, etc. in other rooms, and quietness is maintained in each room. It becomes easy and can improve a resident's comfort.

In addition, in the central air-conditioning system of the present invention, during the heating operation of the air conditioner in winter, etc., the inside air in the attic space is sent to the underfloor space by the vertical convection system, so that the temperature in the attic space does not rise excessively. is prevented. With this air conditioning system, the air conditioner in the attic space can be properly operated, and the room on the second floor can be kept at the temperature desired by the occupant. In addition, in the underfloor space, warm inside air is supplied to living rooms and non-living rooms on the first floor via the floor heating effect and the second air circulation section, and a heat shock prevention effect is also obtained.

In addition, in the central air-conditioning system of the present invention, the inside air in the underfloor space is blown into the attic space by the vertical convection system when the air conditioner is in cooling operation or in air blowing operation. This air-conditioning system can cool the inside air of the attic space and improve the air-conditioning efficiency of the air-conditioning system by blowing air into the attic space, including cold air from the air conditioner, during cooling operation in the summer, etc. . In addition, by activating the vertical convection system even during fan operation, the air inside the building circulates and the humidity in the underfloor space is adjusted, making it difficult for the inside air in the underfloor space to become unpleasant odors due to humidity.

In addition, in the central air conditioning system of the present invention, the vertical convection system is operated even when the air conditioner is stopped, the outside air is taken into the building by the heat exchanger, and the inside air inside the building is exhausted to the outside. This air conditioning system prevents the inside air in the underfloor space from becoming unpleasant odors due to humidity, etc., and by constantly exhausting part of the inside air from the attic space, constantly replacing the inside air in the building. Comfort can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an elevational view illustrating an outline of a central air-conditioning system according to an embodiment of the present invention and a building in which the central air-conditioning system is installed; BRIEF DESCRIPTION OF THE DRAWINGS It is a top view explaining the outline of the whole building air-conditioning system of one Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a top view explaining the outline of the whole building air-conditioning system of one Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a top view explaining the outline of the whole building air-conditioning system of one Embodiment of this invention. FIG. 2 is an elevation view for explaining an overview of a central air conditioning system and a building in which the central air conditioning system is installed according to another embodiment of the present invention; FIG. 10 is a schematic diagram illustrating a state of a conventional cooling and heating device during cooling;

Hereinafter, a central air-conditioning system 10 according to an embodiment of the present invention will be described in detail based on the drawings. In the description of the present embodiment, in principle, the same reference numbers are used for the same members, and repeated descriptions are omitted.

In the following description, the vertical direction indicates the height direction of the building 11 in which the central air-conditioning system 10 is installed, the horizontal direction indicates the width direction when the building 11 is viewed from the front, and the front-rear direction indicates the building 11. 11 shows the depth direction. The air outside the building 11 and the air taken in from the outside of the building 11 are called outside air, and the air circulating inside the building 11 and the air discharged from the inside of the building 11 to the outside are called inside air.

FIG. 1 is an elevational view for explaining the outline of a central air-conditioning system 10 of this embodiment and a building 11 in which the central air-conditioning system 10 is installed. FIG. 2 is a plan view for explaining the outline of the central air-conditioning system 10 in the underfloor space 12 of the building 11 of this embodiment. FIG. 3 is a plan view for explaining the outline of the central air-conditioning system 10 in the attic space 13 of the building 11 of this embodiment. FIG. 4 is a plan view for explaining the outline of the central air-conditioning system 10 in the ceiling space 61 on the 1st floor of the building 11 of this embodiment.

FIG. 1 shows a central air-conditioning system 10 installed in a building 11. The building 11 is, for example, a two-story house. The central air-conditioning system 10 mainly includes a vertical convection system 14 that forcibly sends the inside air of the underfloor space 12 and the inside air of the attic space 13 mutually, a heat exchanger 15 that is a first-class ventilation facility, and a building 2 air conditioners 16 and 17 arranged inside the building 11, an underfloor louver 20 arranged on the floor 26 of the 1st floor of the building 11, and a ceiling louver 21 arranged on the ceiling 27 of the 2nd floor of the building 11. , provided. The heat exchanger 15 and the air conditioners 16 and 17 are connected to a plurality of ducts through which outside air, inside air, and conditioned air flow, thereby forming the central air conditioning system 10 .

Here, the living room 18 of the present embodiment is a space in which the residents, tenants, etc. of the building 11 continue to live. LDK, bedroom R, study R, children's room R, etc. correspond to living room 18 . Also, if the building 11 is an office, the living room 18 corresponds to, for example, an office, an office, a meeting room, or the like. Also, if the building 11 is a hospital, the living room 18 corresponds to, for example, a waiting room, a treatment room, and an examination room. Also, if the building 11 is a restaurant, for example, guest rooms and kitchens correspond to living rooms 18 .

On the other hand, the non-living room 19 of the present embodiment is a space that does not correspond to the living room 18 of the building 11, and if the building 11 is a residence, for example, the toilet WC, the dressing room M, the bathroom B, the corridor H, the stairs S, the entrance hall E, the kitchen K (excluding the dining kitchen), the walk-in closet WIC, the closet STR, etc. correspond to the non-living room 19 . When the building 11 is an office, a hospital, or a restaurant, for example, toilets, corridors, warehouses, changing rooms, and the like correspond to the non-living rooms 19 .

As shown in the drawing, as indicated by sand-like hatching 22, the members of the building 11 that are in contact with the outside air, such as the outer walls of the building 11, are made of heat-insulating members, so that the entire building 11 is insulated from the outside air. formed as a thermally insulated structure. With this structure, the internal spaces of the building 11, such as the underfloor space 12, the attic space 13, the living room 18 and the non-living room 19, are formed as heat insulating spaces. In addition, since the foundation concrete of the underfloor space 12 of the building 11 is also formed in combination with the heat insulating material, the heat insulation efficiency of the underfloor space 12 is further improved.

The vertical convection system 14 is mainly arranged in a duct 23 that communicates the underfloor space 12 and the attic space 13, and an intermediate part of the duct 23, and blows the inside air of the underfloor space 12 to the attic space 13, Alternatively, it has a forward/reverse fan 24 that blows the inside air of the attic space 13 to the underfloor space 12. - 特許庁The ducts 23 arranged in the underfloor space 12 and the attic space 13 are branched to have a plurality of openings in these spaces, thereby supplying inside air as uniformly as possible to those spaces. Alternatively, the inside air can be sucked in as uniformly as possible from within those spaces.

As indicated by a plurality of double-directional arrows 25, in the vertical convection system 14, the forward/reverse fan 24 is driven in the normal direction, so that the inside air in the underfloor space 12 is sucked into the duct 23, forcing the air into the attic space. 13 is ventilated. The attic space 13 is filled with the shy air of the underfloor space 12 blown from the duct 23, and the shy air that originally existed in the attic space 13 flows through the ceiling louvers 21 into the non-living rooms 19 of the building 11 and the like. It flows out to living room 18.

On the other hand, by driving the forward/reverse fan 24 in the reverse direction, the inside air in the attic space 13 is sucked into the duct 23 and forced to be blown into the underfloor space 12 . The underfloor space 12 is filled with the shy air of the attic space 13 blown from the duct 23, and the shy air that originally existed in the underfloor space 12 flows through the underfloor louvers 20 into living rooms 18 and non-living rooms of the building 11. It flows out to 19.

In this embodiment, when the outside air is hotter than the inside air, such as in summer, the inside air in the attic space 13 is warmed by the heat from the roof 29 due to solar radiation, and is in a higher temperature state than the inside air in the underfloor space 12. Become. In this case, the residents of the building 11 usually operate the air conditioners 16 and 17 in the cooling operation to cool the inside of the building 11 with the central air conditioning. At this time, the cool air from the air conditioners 16 and 17 flows downward into the living room 18 and the non-living room 19, so that the inside air in the attic space 13 is difficult to be cooled by the operation of the air conditioners 16 and 17. On the other hand, part of the cold air flows into the underfloor space 12 through the underfloor louvers 20, and the internal air in the underfloor space 12 is cooled through the floor 26 of the building 11 and the foundation concrete. The inside air of the space 12 is in a lower temperature state than the inside air of the attic space 13. - 特許庁

Therefore, as described above, the forward/reverse fan 24 of the vertical convection system 14 is driven in the forward direction to blow the low-temperature inside air in the underfloor space 12 into the attic space 13, thereby keeping the attic space 13 at a low temperature. Can be filled with state shyness. As a result, the living room 18 and the non-living room 19 of the building 11 are shielded from the roof 29 of the building 11 which is in a high temperature state by the low temperature inside air of the attic space 13, and the ceiling 27 of the building 11 is in the low temperature state. By being cooled by the inside air, the entire building 11 is cooled, and the cooling efficiency of the air conditioners 16 and 17 is greatly improved. Furthermore, since the low-temperature inside air in the attic space 13 flows appropriately without being congested, the occurrence of dew condensation in the air conditioner 16 arranged in the attic space 13 is prevented, and the life of the product is lengthened.

On the other hand, when the outside air is cooler than the inside air, such as at night or early in the morning in winter, spring and autumn, the residents of the building 11 normally operate the air conditioners 16 and 17 in heating operation, and the entire building is air-conditioned. The inside of the building 11 is heated. At this time, the warm air from the air conditioners 16 and 17 flows upward in the living room 18 and the non-living room 19, and part of it flows into the attic space 13 via the ceiling louver 21, thereby reducing the attic space 13. The inside air is warmed by the operation of the air conditioners 16 and 17 . The inside air of the attic space 13 is also warmed through the ceiling 27 warmed by the warm air.

At this time, in particular, the air conditioner 16 arranged in the attic space 13 senses the warm inside air in the attic space 13, and the inside of the living room 18 or the non-living room 19 on the second floor is heated to the set temperature or near the set temperature. By erroneously recognizing that the air conditioner 16 is blowing, the conditioned air from the air conditioner 16 becomes a gentle breeze or stops. As a result, mainly the living room 18 and the non-living room 19 on the second floor are difficult to be heated by the air conditioner 16, and the cold condition is not improved, so the comfort of the residents is impaired.

Therefore, as described above, the forward/reverse fan 24 of the top-bottom convection system 14 is driven in the reverse direction to blow the warm air in the attic space 13 to the underfloor space 12, so that the air conditioner 16 in the attic space 13 , 17 does not become stuffy, and the inside air in the attic space 13 is brought to a certain low temperature state by the outside air and the roof 29. - 特許庁As a result, the above erroneous recognition does not occur in the air conditioner 16, warm air with an appropriate air volume is supplied to the living room 18 on the second floor and the non-living room 19, and the inside of the living room 18 and the non-living room 19 on the second floor It heats up to the desired temperature and improves the comfort of the occupants.

In addition, in the underfloor space 12, warm inside air is blown from the attic space 13, so that the underfloor space 12 is filled with warm inside air. As a result, the floor 26 on the first floor of the building 11 and the foundation concrete of the underfloor space 12 are heated, and the living room 18 and the non-living room 19 on the first floor have the effect of floor heating.

In the vertical convection system 14, when the air conditioners 16 and 17 are in the air blowing operation and when the air conditioners 16 and 17 are stopped, the forward/reverse fan 24 is driven in the normal direction, and the inside air in the underfloor space 12 is directed to the attic space 13. and blow. With this system, the inside air of the underfloor space 12 or the inside air of the attic space 13, which is close to room temperature, always flows through the duct 23, so that dew condensation is less likely to occur in the duct 23, and the duct 23 has the effect of preventing mold. be done. In addition, the inside air of the underfloor space 12 is less likely to be clogged, and the humidity in the underfloor space 12 is adjusted, so that the inside air of the underfloor space 12 is less likely to smell unpleasant due to moisture or the like.

FIG. 2 shows the piping condition of the duct 23 and the like in the underfloor space 12 and the arrangement condition of the underfloor louver 20 on the floor 26 of the building 11 . In FIG. 2, for convenience of explanation, both the underfloor space 12 and the structure of the first floor of the building 11 located thereabove are indicated by solid lines.

As shown in FIG. 2 , the forward/reverse fan 24 of the vertical convection system 14 is arranged in the middle of the duct 23 piped to the underfloor space 12 . In addition, a turnout 31 is provided substantially at the center of the underfloor space 12 , and the duct 23 is connected to one connection port of the turnout 31 . As illustrated, for example, four ducts 32, 33, 34, 35 are connected to the branch 31, and the two connection ports 36, 37 of the branch 31 are not connected to any ducts.

Further, the ducts 32 and 33 extend along the corridor H, which is the non-living room 19, toward the living room dining kitchen LDK side, which is the living room 18 on the left side of the drawing. The connection ports 36 and 37 of the branching device 31 are arranged in the front-rear direction of the drawing. The ducts 34 and 35 extend along the corridor H, which is the non-living room 19, toward the entrance hall E, which is the non-living room 19, and the stairs S on the right side of the drawing.

Due to the above piping structure, in the underfloor space 12, the connection ports 36 and 37 of the unconnected branch switch 31 and the tip openings of the ducts 32 to 35 are arranged in substantially all directions of the underfloor space 12. FIG. The underfloor space 12 is finely partitioned by the foundation concrete of the building 11, but the vertical convection system 14 draws in the inside air of the underfloor space 12 as uniformly as possible or fills the underfloor space 12 with the inside air of the attic space 13. be able to. As a result, substantially the entire underfloor space 12 including the foundation concrete can be heated in winter, and a floor heating effect can be obtained over substantially the entire floor 26 of the building 11 .

In addition, a plurality of underfloor louvers 20 are arranged on the floors 26 of living rooms 18 and non-living rooms 19 on the first floor of the building 11 . As shown in the figure, the underfloor louver 20 is mainly arranged ahead of the tip openings of the turnout 31 and the ducts 32-35. With this structure, in the vertical convection system 14 , the warm inside air in the underfloor space 12 is ventilated to the living rooms 18 and non-living rooms 19 on the first floor of the building 11 through the underfloor louvers 20 in winter. For example, in the toilet WC, the dressing room M, and the bathroom B in the non-occupied room 19, in addition to the floor heating effect, warm inside air is blown from the underfloor space 12 to prevent heat shock.

On the other hand, in the vertical convection system 14, in the summer, the cool air that accumulates near the floor 26 of the living room 18 and the non-living room 19 on the first floor is sucked into the underfloor space 12 through the underfloor louvers 20, and the cold air is discharged into the attic space 13. The cold air from the air conditioners 16 and 17 can be circulated in the building 11. As a result, the feet of the occupants of the living room 18 on the first floor are prevented from being too cold, and the comfort of the occupants is improved. As the underfloor louver 20, for example, a floor ventilation material made of resin such as PP (PolyproPylene) is used, and corresponds to the second air circulation portion of the present invention.

FIG. 3 shows the piping condition of the duct 23 and the like in the attic space 13 and the arrangement condition of the ceiling louver 21 on the ceiling 27 of the building 11 . In FIG. 3, for convenience of explanation, both the attic space 13 and the structure of the second floor of the building 11 located therebelow are indicated by solid lines.

As shown in FIG. 3, the attic space 13 is mainly provided with a duct-type heat exchanger 15, an air conditioner 16, a duct 23 of the vertical convection system 14, and the like. The heat exchanger 15 includes a supply air duct 41 that sucks in the outside air outside the building 11 and supplies it to the air conditioners 16 and 17, an exhaust duct 42 that sucks in the inside air inside the building 11 and discharges it to the outside of the building 11, have As the heat exchanger 15, for example, product number V-150CRL-D manufactured by Mitsubishi Electric Corporation can be used. The air conditioner 16 is mainly used for cooling and heating the living room 18 and the non-living room 19 on the second floor of the building 11 .

The heat exchanger 15 exchanges heat between the outside air in the air supply duct 41 and the inside air in the exhaust duct 42 within the device. The heat exchanger 15 cools the outside air to some extent when the temperature of the outside air is higher than the inside air, such as in summer, and supplies it to the air conditioners 16 and 17 in a state close to room temperature. When the temperature is low, the air conditioning efficiency of the air conditioners 16 and 17 is improved by warming the outside air to some extent and supplying it to the air conditioners 16 and 17 in a state close to room temperature. In addition, in the central air-conditioning system 10 of the present embodiment, the heat exchanger 15 always operates regardless of the operation state of the air conditioners 16 and 17, thereby satisfying the ventilation requirements of the Building Standards Act.

As shown in the figure, the attic space 13 is provided with turnouts 45 and 46 that are connected to the air-conditioning air feed ducts 43 and 44 of the air conditioner 16 . A plurality of air-conditioning air supply ducts 47, 48 are connected to the branching devices 45, 46, respectively, and the air-conditioning air supply ducts 47, 48 are connected to a plurality of air supply ports 49, 50 arranged in the ceiling 27 of the building 11. Connect each. The conditioned air supplied from the air conditioner 16 is sent to the living room 18 and the non-living room 19 of the building 11 through the air supply ports 49 and 50 . At least the ceiling 27 of each living room 18 on the second floor of the building 11 is provided with exhaust ports 51 and 52, respectively. .

The duct 23 of the top-bottom convection system 14 is arranged in the central area of the attic space 13 in the front-rear direction of the drawing so as to extend in the left-right direction of the drawing along the corridor H, which is the non-living room 19 . In the duct 23 of the attic space 13, as indicated by double circle marks 54, the inside air of the attic space 13 is sucked from three tip openings, or the inside air of the underfloor space 12 is introduced into the attic space 13. fill up. The attic space 13 is a substantially integrated space with no particular wall or the like that partitions the space, and by arranging the tip openings at the above three locations, substantially the entire attic space 13 is made uniform as much as possible in summer. In addition to cooling, it is possible to prevent the occurrence of areas filled with inside air.

In addition, a ceiling louver 21 is arranged on the ceiling 27 of the corridor H, which is the non-residential room 19 on the second floor of the building 11, and an exhaust port 55 is arranged near the ceiling louver 21. is connected to the exhaust duct 42 of the heat exchanger 15 . By operating the vertical convection system 14 and forcibly blowing the inside air from the underfloor space 12 to the attic space 13, part of the inside air in the attic space 13 is transferred to the non-living room 19 through the ceiling louver 21. It flows out into the corridor H.

At this time, immediately after the operation of the vertical convection system 14 or in a humid season such as the rainy season, the inside air of the underfloor space 12 has an unpleasant odor such as a musty odor, and the inside air with the unpleasant odor spreads through the ceiling louver 21. In some cases, the air may flow out into the corridor H, which is the non-living room 19, through the air.

Therefore, in the present embodiment, the ceiling louver 21 is provided not for the living room 18 on the second floor of the building 11 but for the non-living room 19, so that the residents in the living room 18 feel uncomfortable due to the unpleasant odor. become unacceptable. Furthermore, the inside air flowing out from the attic space 13 is immediately sucked into the exhaust duct 42 of the heat exchanger 15 through the exhaust port 55 in the corridor H, which is the non-residential room 19, and discharged to the outside of the building 11. As a result, residents in the living room 18 are less likely to feel discomfort due to the unpleasant odor.

Also, the ceiling louver 21 is not installed in the living room 18 on the second floor of the building 11, but is installed in the non-living room 19. - 特許庁With this structure, between the bedroom R, the children's room R, the study R, etc., which are living rooms 18 provided on the second floor of the building 11, the sounds of conversations, music, etc. Leakage to another living room 18 via the back space 13 is prevented, and discomfort of the occupants due to sound leakage can be eliminated.

As the ceiling louver 21, for example, a stainless steel ceiling ventilation material with a fire damper is used, and corresponds to the first air circulation part of the present invention. In addition, in this embodiment, the ceiling louver 21 is also arranged on the ceiling 27 of the atrium space of the living room dining kitchen LDK, which is the living room 18, but it is far from the resident's activity area, and the underfloor louver is located below it. By arranging 20, the inside air blown from the ceiling louver 21 flows downward along the wall of the building 11, is less likely to cross the resident's activity area, and is less likely to experience the discomfort.

FIG. 4 shows the piping condition of the air conditioner 17 and the like in the ceiling space 61 behind the ceiling 28 on the first floor of the building 11 . In FIG. 4, for convenience of explanation, the space 61 above the ceiling and the structure of the first floor of the building 11 located therebelow are indicated by solid lines.

As shown in FIG. 4 , the space 61 above the ceiling is mainly provided with an air conditioner 17 , and the air conditioner 17 is supplied with outside air from the outside of the building 11 via an air supply duct 62 . The air supply duct 62 is connected via a connection duct 73 to the air supply duct 41 (see FIG. 3) of the heat exchanger 15 (see FIG. 3) arranged in the attic space 13 . The air conditioner 17 is mainly used for cooling and heating the living room 18 and the non-living room 19 on the first floor of the building 11 .

Also, in the space 61 above the ceiling, branchers 65 and 66 connected to the air-conditioning air feed ducts 63 and 64 of the air conditioner 17 are arranged. A plurality of air-conditioning air supply ducts 67, 68 are connected to the branching devices 65, 66, respectively, and the air-conditioning air supply ducts 67, 68 are connected to a plurality of air supply ports 69 arranged in the ceiling 28 of the first floor of the building 11. , 70 respectively. The conditioned air supplied from the air conditioner 17 is sent to the living room 18 and the non-living room 19 on the first floor of the building 11 through the air supply ports 69 and 70 . An exhaust port 71 is provided on the ceiling 28 of the living dining kitchen LDK, which is the living room 18 on the first floor of the building 11 , and an air conditioning air return duct 72 connected to the exhaust port 71 is connected to the air conditioner 17 .

An exhaust port 74 connected to an exhaust duct 75 is provided in the ceiling 28 of the corridor H, which is the non-residential room 19 on the first floor of the building 11 . The exhaust duct 75 is connected to the exhaust duct 42 (see FIG. 3) of the heat exchanger 15 (see FIG. 3) through the connecting duct 76. As shown in FIG. With this structure, when the door of the living-dining-kitchen LDK is opened, the inside air in the living-dining-kitchen LDK can be discharged to the outside of the building 11 .

In addition, as described above, immediately after the operation of the vertical convection system 14, when an unpleasant odor of shy air flows out from the ceiling louver 21 (see FIG. 3), the door of the living dining kitchen LDK can be opened. It is also possible to suck inside air with an unpleasant odor above the active area of the building 11 through an exhaust port 74 and discharge it to the outside of the building 11 .

In this embodiment, the air conditioner 16 installed in the attic space 13 is mainly used for cooling and heating the living room 18 and the non-living room 19 on the second floor of the building 11, and is installed in the ceiling space 61. The air conditioner 17 is mainly used for cooling and heating the living room 18 and the non-living room 19 on the first floor of the building 11 . As described above, by circulating the inside air in the building 11 using the vertical convection system 14, the inside air in the ceiling space 61 can be made to have an appropriate temperature and flow.

With this system, during the heating operation of the air conditioners 16 and 17 in winter, etc., the air conditioner 16 does not cause the above-mentioned erroneous recognition due to the warmed inside air of the attic space 13, and the air conditioner 16 appropriately adjusts to the set temperature of the resident. operate. Similarly, during the cooling operation of the air conditioners 16 and 17 in summer, etc., the air conditioner 16 does not cause the above-described erroneous recognition due to the high temperature inside air in the attic space 13, and always operates in a strong wind state. While being prevented, it operates appropriately according to the set temperature of the resident.

As a result, even if the comfort temperature differs between the parents living in the living room 18 on the first floor of the building 11 and the child living in the living room 18 on the second floor, the air conditioner 16 can be used even though the whole building air conditioning system 10 is used. , 17 are arranged, it is possible to satisfy the comfort of each resident.

In this embodiment, referring to FIGS. 1 to 4, a central air-conditioning system 10 using a vertical convection system 14 is introduced into a building 11 that is a two-story house, and is installed in the attic space 13. The air conditioner 16 installed in the building 11 mainly cools and heats the living room 18 and the non-living room 19 on the second floor of the building 11, and the air conditioner 17 arranged in the ceiling space 61 mainly cools the living room on the first floor of the building 11. Although the case of cooling and heating the room 18 and the non-living room 19 has been described, the present invention is not limited to this case. For example, the building 11 may be a one-storied house, or even if it is a house or building with three or more stories, by introducing the whole building air conditioning system 10 using the above-described vertical convection system 14, the above-described You can get the same effect as

For example, FIG. 5 is a schematic elevational view of a building 81 into which the central air-conditioning system 10 of this embodiment is installed. Since the central air-conditioning system 10 using the vertical convection system 14 is also introduced into the building 81, the same reference numerals are given to the same components as those of the building 11 explained with reference to FIGS. 1 to 4. and description thereof is omitted here. Further, in the building 81 as well, by using the same structural members as in the building 11, similar effects can be obtained.

As shown in FIG. 5 , the forward/reverse fan 24 of the vertical convection system 14 is installed in the underfloor space 82 of the building 81 . The duct 23 of the vertical convection system 14 communicates with a turnout 83 and a plurality of ducts 87 connected to the turnout 83, and the tip openings of the ducts 87 are arranged in substantially all directions of the underfloor space 82. be done. Due to the above piping structure, the underfloor space 82 is finely partitioned by the foundation concrete of the building 81, but in the vertical convection system 14, the inside air of the underfloor space 82 is drawn in as uniformly as possible, or the inside air of the attic space 84 is drawn under the floor. The space 82 can be filled.

In the attic space 84 of the building 81, the duct 23 of the vertical convection system 14 is piped, and the heat exchanger 15 and the two air conditioners 16 and 17 that constitute the central air conditioning system 10 are arranged. An underfloor louver 20 is provided on the floor 85 of the building 81, and a ceiling louver 21, an exhaust port 55 of the heat exchanger 15, and air supply ports 49 and 50 of the air conditioners 16 and 17 are provided on the ceiling 86 of the building 81. and exhaust ports 51 and 52 are provided.

As shown in the figure, the ceiling 86 of the non-living room 19 is provided with an exhaust port 55 in the vicinity of the ceiling louver 21, so that the inside air flowing out from the attic space 84 is discharged to the non-living room 19 through the exhaust port 55. Then, the air is sucked into the exhaust duct 42 of the heat exchanger 15 and discharged to the outside of the building 11, so that the residents in the living room 18 are less likely to feel discomfort due to the unpleasant odor.

Further, for example, the air conditioner 16 mainly cools and heats the living room 18 and the non-living room 19 on the south side of the building 81 , and the air conditioner 17 mainly cools and heats the living room 18 and the non-living room 19 on the north side of the building 81 . In summer, the living room 18 and the non-occupied room 19 on the south side of the building 81 are exposed to the sun and become too hot. In the living room 19, it may not be necessary to lower the set temperature for the cooling operation as far as the south side. Even in such a case, it is possible to satisfy each resident's comfort by arranging a plurality of air conditioners 16 and 17 in spite of the whole building air conditioning system 10 . In addition, various modifications are possible without departing from the gist of the present invention.

10 Whole building air-conditioning system 11,81 Building 12,82 Underfloor space 13,84 Attic space 14 Top-bottom convection system 15 Heat exchanger 16,17 Air conditioner 18 Living room 19 Non-living room 20 Underfloor louver 21 Ceiling louver 23 Duct 24 Reversible fan 26, 85 Floor 27, 28, 86 Ceiling 49, 50, 69, 70 Air supply port 61 Ceiling space

Claims (6)

a plurality of air conditioners arranged inside the building;
After exchanging heat between outside air taken in from the outside of the building and inside air inside the building, the outside air is supplied to the air conditioner, and the inside air is supplied to the outside of the building. a heat exchanger discharging to
a duct having one opening in the underfloor space of the building and the other opening in the attic space of the building, and communicating the underfloor space and the attic space;
a reversible fan disposed in an intermediate portion of the duct for blowing the inside air of the underfloor space to the attic space, or blowing the inside air of the attic space to the underfloor space;
A plurality of living rooms and a plurality of non-living rooms are arranged in the building,
The ceiling of at least one of the non-living rooms is formed with a first air circulation portion through which the inside air of the attic space circulates, and an exhaust port of the heat exchanger,
A whole building air-conditioning system, wherein the floor of at least one living room is formed with a second air circulating section through which the inside air of the underfloor space circulates. The building has two floors,
The air conditioner installed in the attic space supplies conditioned air through an air supply port installed in at least the living room or the non-living room on the second floor of the building,
The air conditioner installed in the space above the ceiling of the building supplies conditioned air through an air supply port installed in at least the living room or the non-living room on the first floor of the building. The central air-conditioning system according to claim 1. 3. The central air-conditioning system according to claim 2, wherein said first air circulation section is not formed in said living room on the second floor of said building. 4. The air conditioner according to any one of claims 1 to 3, wherein the forward/reverse fan blows the inside air of the attic space to the underfloor space through the duct during the heating operation of the air conditioner. The air conditioning system for the whole building described in the paragraph. 5. The whole building according to claim 4, wherein the forward/reverse fan blows the inside air of the underfloor space to the attic space through the duct during the cooling operation and the blowing operation of the air conditioner. air conditioning system. When the air conditioner is stopped, the forward/reverse fan blows the inside air in the underfloor space to the attic space,
6. The central air-conditioning system according to claim 4, wherein the outside air taken in by the heat exchanger is blown into the building via the air conditioner.

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