JP2023013046A - Hollow structure for air conditioner - Google Patents

Abstract

To solve the problem that residents become uncomfortable because cool air drifts around feet in an upper-story room during air conditioning and warm air comes from the ceiling in a lower-story room during heating in a conventional technique.SOLUTION: In a hollow structure 61 for an air conditioner, hollow structures 50, 60 obtained by expanding a space 50 between floors are formed in a building 1 provided with the space 50 between the floors, a vent pipe 42 through which either of air cooled or air heated by an indoor unit 4 for an air conditioner is sent is connected to the hollow structures 50, 60, the hollow structures 50, 60 have structures where a cooling air path and a heating air path which differ according to the cooled air and the heated air are formed on the basis of a difference in quality between the cooled air and the heated air, a lower face supply opening 63 for the cooling air path is provided in a downstairs space 20, and an upper face supply opening 64 for the heating air path is provided in an upstairs space 30.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a hollow structure for an air conditioner using a space between a downstairs living room and an upstairs living room.

As a conventional example, there have been proposed air-conditioning systems for air-conditioning the entire interior of a building such as a general house, and those having various structures and functions have been proposed. "Ventilator-free air-conditioning system for buildings" described in Patent Document 2, "Air-conditioning system" described in Patent Document 2, and "House air-conditioning system" described in Patent Document 3.

The "ventilation tube-less air-conditioning system for buildings" described in Patent Document 1 uses a hollow structure having a hollow portion as a floor component that separates upper and lower rooms of a building body, and air-conditioning is performed in this hollow structure. It is characterized by circulating an air flow to control the temperature of the hollow portion of the floor component, and by opening an outlet at a predetermined position so that the air can be discharged to at least one of the upper and lower chambers.

In the "ventilation tube-less air conditioning system for buildings" described in Patent Document 2, a hollow structure formed integrally with the frame of the building on the ceiling of the corridor that partitions or connects a plurality of rooms in the main body of the building. An air conditioner is built in, and the outlet for the air that has been air-conditioned by this air conditioner is installed on the living room side of the upper wall facing the corridor.

In the "housing air conditioning system" described in Patent Document 3, an invention is disclosed in which an air supply ventilation pipe 9 is installed using the ceiling space 8 on the first floor. The ventilation pipe 9 is intended to perform air conditioning in the perimeter zone for the living room 6 on the first floor, and for cooling or heating air, an air outlet is arranged near the wall of the ceiling on the first floor. .

JP-A-2-242032 JP-A-11-325508 JP 2011-133156 A

The "building ventilation pipe-less air conditioning system" described in Patent Document 1 does not use a ventilation pipe, so it is possible to avoid the deterioration of the air conditioning efficiency caused by the ventilation pipe. There was a problem that the occupants of the upper floors were uncomfortable because the cold air rose from their feet. Also, during heating, warm air comes from the ceiling, but if you try to heat the entire lower floor living room, the air volume will increase, creating a feeling of air currents, which is uncomfortable for the occupants.

Regarding the "air conditioning system" described in Patent Document 2 and the "residential air conditioning system" described in Patent Document 3, since both of them blow cold air or warm air from the ceiling, There was a problem that it was not a countermeasure against the discomfort of the air conditioning of the residents.

In order to solve the above problems, the present invention takes the following technical measures.

A hollow structure for an air conditioner according to the first invention is a building having a living room below the floor and a living room above the floor, and having a space between the living room below the floor and the living room above the upper floor. A hollow structure is formed by adding members to the interior of the building, and the hollow structure is filled with either air that is cooled with respect to the air in the building or air that is heated with respect to the air in the building. A ventilation pipe to be sent is connected, and the hollow structure has different cooling air paths and heating air paths for the cooled air and the heated air. It has a structure formed by different properties, an air outlet at the end of the hollow structure of the cooling air passage is provided in the downstairs room, and an air outlet at the end of the hollow structure of the heating air passage is provided. It is characterized in that an exit is provided in the living room on the upper floor.

A hollow structure for an air conditioner according to a second aspect of the invention is characterized in that, in the invention of claim 1, different cooling air passages and heating air passages are provided in the hollow structure for the cooled air and the heated air. The structure formed by the difference in properties of the cooled air and the heated air spreads downward from the point where the ventilation pipe is connected to the hollow structure, and the downstairs living room and the floor surround the predetermined surroundings. The structure is characterized in that the space between the upper living rooms is expanded downward, and the air outlet at the end of the hollow structure of the cooling air passage is provided at the expanded portion.

A hollow structure for an air conditioner according to a third aspect of the invention is characterized in that, in the invention of claim 1, different cooling air passages and heating air passages are provided in the hollow structure for the cooled air and the heated air. The structure formed by the difference in properties of the cooled air and the heated air spreads downward from the point where the ventilation pipe is connected to the hollow structure, and the downstairs living room and the floor surround the predetermined surroundings. An enclosure (a box having an opening at the top) is provided in the space between the upper living rooms, and the air outlet at the end of the hollow structure of the cooling air passage is provided inside the location where the enclosure is provided. It is characterized by a structure that

A hollow structure for an air conditioner according to a fourth aspect of the invention, in the invention of claim 2 or 3, is provided with a wind direction guide plate that changes according to the temperature difference between the cooled air and the heated air. It is characterized by

A hollow structure for an air conditioner according to a fifth aspect of the invention is the air cooled with respect to the air in the building in any one of the inventions from claim 1 to claim 4, or with respect to the air in the building. It is characterized in that the ventilation pipes to which either one of the heated air is sent are connected to the upper surface side of the hollow structure by a single pipe.

By having the technical means as described above, the following effects are obtained.

A downstairs living room and an upstairs living room are provided, and the space between the downstairs living room and the upstairs living room is effectively used. As for , it can be used to heat the living room on the upper floor, so it is possible to provide cooling and heating that does not make the occupants uncomfortable.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view showing the external appearance of the building in which the hollow structure for air conditioners which concerns on the 1st Embodiment of this invention was implemented. FIG. 2 is an enlarged view of part A in FIG. 1; FIG. 3 is an explanatory diagram of cooling air passages in the air conditioner hollow structure according to the first embodiment of the present invention; FIG. 4 is an explanatory diagram of a heating air passage using the hollow structure for an air conditioner according to the first embodiment of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS It is a top view of the building for demonstrating the hollow structure for air conditioners which concerns on the 1st Embodiment of this invention. FIG. 7 is an explanatory diagram of cooling air passages in the hollow structure for an air conditioner according to the second embodiment of the present invention; FIG. 8 is an explanatory diagram of a heating air passage using the hollow structure for an air conditioner according to the second embodiment of the present invention; FIG. 10 is an explanatory diagram of cooling air passages and heating air passages in the hollow structure for an air conditioner according to the third embodiment of the present invention; FIG. 11 is an explanatory diagram of cooling air passages and heating air passages using the hollow structure for an air conditioner according to the fourth embodiment of the present invention; FIG. 11 is an explanatory diagram of cooling air passages in a hollow structure for an air conditioner according to a fifth embodiment of the present invention; FIG. 11 is an explanatory diagram of a heating air passage using the hollow structure for an air conditioner according to the fifth embodiment of the present invention; FIG. 11 is an explanatory diagram of a cooling air passage and a heating air passage using the air conditioner hollow structure according to the sixth embodiment of the present invention; FIG. 11 is an explanatory diagram of cooling air passages in a hollow structure for an air conditioner according to a seventh embodiment of the present invention; FIG. 11 is an explanatory diagram of a heating air passage using the hollow structure for an air conditioner according to the seventh embodiment of the present invention;

Embodiments for carrying out the invention will be specifically described with reference to the drawings.

(First embodiment)
The structure of the air conditioner hollow structure 61 of the present invention will be described with reference to FIG. FIG. 1 is a perspective view of a building 1 having a downstairs space 20 (first floor in FIG. 1) and an upstairs space 30 (second floor in FIG. 1). In order to make the inside of the so-called two-story building 1 easy to understand, the inside of the building 1 is illustrated so that the inside of the building 1 can be understood by excluding the building wall 16, the floorboards 21, 31, the ceiling boards 22, 32, etc. on the near side.
The exterior of the building 1 has building walls 16 (windows and doorways are necessary in some of the building walls, but illustration and description are omitted in this drawing) on four side surfaces, and a roof 18 on the top surface. is provided. A downstairs space 20 and an upstairs space 30 are formed inside.

The downstairs space 20 is vertically partitioned by a floor board 21 and a ceiling board 22, and surrounded by a building wall 16. - 特許庁An upper floor space 30 is partitioned vertically by a floor board 31 and a ceiling board 32, and surrounded by a building wall 16. - 特許庁At the same time, the underfloor space 20 and the upper space 30 are provided. A ceiling space (attic space) 40 is provided between them, and an inter-floor space 50 is provided between the ceiling plate 22 of the downstairs space 20 and the floor plate 31 of the upper space 30 .

In the embodiments of the present application, the term "between floors" refers only to the form of the space between the first and second floors. This embodiment can also be implemented for the space between the third floor and the space between the third and fourth floors, and the space between the third and fourth floors.

An air conditioner outdoor unit 3 is provided outside the building 1 , and an air conditioner indoor unit 4 is provided in a ceiling space 40 of the building 1 .
A circulation circuit is formed by a pipe 5 between the air conditioner outdoor unit 3 and the air conditioner indoor unit 4,
The heat exchanger provided inside the air conditioner indoor unit 4 is heated or cooled, and the indoor air of the building 1 or the outdoor air in the case of ventilation is passed by the blower, so that the heat exchanger heats. Chilled air or chilled air can be generated.

The flow of air heated by a blower (fan) is hereinafter abbreviated as warm air, and the flow of air cooled by the blower is hereinafter abbreviated as cold air.
Regarding the air conditioner outdoor unit 3 and the air conditioner indoor unit 4, there is a method of compressing the refrigerant and using it for heating or cooling, or a method of cooling the antifreeze with a refrigerating device and heating the antifreeze with electricity, oil, gas, or the like. It has been implemented.

The indoor unit 4 for an air conditioner is provided with ventilation pipe mounting openings 41 , 45 , and 47 . Cold air or warm air is generated inside the air conditioner indoor unit 4, but hot or cold air can be blown through the ventilation pipe mounting opening 41, and only warm air can be blown through the ventilation pipe mounting opening 45. Only cold air can be blown to the pipe mounting port 47 .
Therefore, when the air conditioner indoor unit 4 switches from cool air to warm air and blows air, a damper for switching the air path is provided inside the air conditioner indoor unit 4, and the ventilation pipe mounting port 45 and the ventilation pipe mounting port 45 are provided. Either of the pipe fitting openings 47 can be selected to blow cool or warm air.
Also, by installing a plurality of blowers (fans) in the air conditioner indoor unit 4, it is also implemented to switch the air blowing from each ventilation pipe mounting port even when the air is cold or warm.
A ventilation pipe is a pipe that carries gas, and is also called a duct, an air duct, or an air pipe. Also, since the ventilation pipes are easy to manufacture, circular pipes are generally used, but square pipes may be used.

An airtight ventilation pipe 42 is connected to the ventilation pipe mounting port 41, and the ventilation pipe 42 is connected to the ceiling space 40, the ceiling plate 32 of the upper floor space 30, the upper floor space 30, and the upper floor space 30. It passes through the floor plate 31 and is connected to an inter-floor space 50 provided between the upper floor space 30 and the lower floor space 20.例文帳に追加

An airtight ventilation pipe 46 is connected to the ventilation pipe mounting port 45, and the ventilation pipe 46 is connected to the ceiling space 40, the ceiling plate 32 of the upper floor space 30, the upper floor space 30, and the upper floor space 30. It passes through the floorboard 31, the ceiling board 22 of the downstairs space 20, the downstairs space 20, and the floorboard 21 of the downstairs space 20, and is connected to the underfloor space 10. - 特許庁
An airtight ventilation pipe 48 is connected to the ventilation pipe mounting port 47, and the ventilation pipe 48 branches into a plurality of outlets inside the ceiling space 40 and opens to the upper floor space 30. 33.
The details of the cold air or hot air outlets to the downstairs space 20 and the upstairs space 30 will be described later with reference to FIGS. 3 and 4 .

The air conditioner indoor unit 4 can incorporate a ventilation function by combining a total heat exchanger and a sensible heat exchanger. In this case, fresh air is taken from the outside (outdoors) of the building 1 into the air conditioner indoor unit 4, the heat of the indoor air is recovered by the total heat heat exchanger or the sensible heat exchanger, and the heat of the building 1 is It is possible to generate warm air and cold air while maintaining the indoor temperature in a state where it is difficult to change.

In addition, the applicant of the present application has disclosed an invention of a ventilation device that combines cold air, heating, ventilation, hot water supply and solar heat in Japanese Patent Application Laid-Open No. 2017-172901. It can be implemented by combining the ventilation device of 2017-172901. Therefore, a detailed description of the ventilator will be omitted. Since the invention of JP-A-2017-172901 is a ventilator, the outlet is described as an air supply port.

A hollow structure 61 for an air conditioner is provided between the ceiling plate 22 of the downstairs space 20 and the floor plate 31 of the upstairs space 30 .

There are various construction methods such as a wooden frame construction method, a two-by-four construction method, a concrete construction method, and a prefabricated construction method as construction methods for general detached houses.

The portion A (broken line of the circle) in FIG. 1 will be described using the wooden frame construction method in FIG. 2 as an example. When building a building 1 having a downstairs living room (downstairs space 20) and an upstairs living room (upstairs space 30), structural materials supporting the floor surface of the upstairs living room, for example, a wooden frame construction method In this case, after the upper floor board 31 is assembled using the floor beams 51 and joists 52, the ceiling board 22 of the downstairs space 20 is suspended from the floor beams 51 and joists 52 that support the floor boards 31 of the upper floor space 30. In many cases, the ceiling board 22 is attached by providing a base frame 54 such as a ceiling joist or a joist holder using a tree 53 or hanging metal fittings. Therefore, an inter-floor space 50 is created by the structural materials of the building 1 between the floor board 31 of the upper floor space 30 and the ceiling board 22 of the lower floor space 20 . Although there are pillars as structural members of the building 1, they are not structural members that block the inter-floor space 50, so the description thereof is omitted.
As general detached house construction methods, there are various construction methods such as two-by-four construction method, concrete construction method, prefab construction method, etc. in addition to the wooden frame construction method. It is provided for the purpose of preventing vibration from above the floor.

The flow of cool air or warm air will be described with reference to FIGS. 3 and 4. FIG. 3 and 4 are explanatory diagrams showing a schematic cross-sectional structure of the building 1 viewed from direction B in FIG. FIG. 3 is an explanatory diagram of a case where cool air is blown from the ventilation pipe mounting opening 41 and the ventilation pipe mounting opening 47 of the indoor unit 4 for an air conditioner. FIG. 4 is an explanatory diagram of a case in which hot air is blown from the ventilation pipe mounting opening 41 and the ventilation pipe mounting opening 45 of the indoor unit 4 for an air conditioner. 3 and 4, the state and direction of flow of cold air are illustrated as white arrows, and the state and direction of flow of warm air are illustrated as black arrows. The state and direction in which the returning wind flows are illustrated as hatched arrows.

3 and 4, the configuration of the air conditioner hollow structure 61 provided in the inter-floor space 50 will be described. The air conditioner hollow structure 61 includes the ceiling 22 plate of the downstairs space 20 constituting the inter-floor space 50, the floor plate 31 of the upstairs space 30, the ceiling plate 22 of the downstairs space 20, and the upstairs space. The building wall 16 covering the periphery of the floor board 31 of 30 is made into the basic composition. Note that the structural members supporting the floor plate 31 and the ceiling plate 22 described with reference to FIG.

In this basic configuration, for a certain range in the central part of the ceiling plate 22 of the downstairs space 20, the height of the ceiling plate 22 is 1 or more times the height dimension (thickness dimension) of the inter-floor space 50, preferably 1 The lower surface 62, which is the lowermost surface of the air conditioner hollow structural body 61, is formed by lowering the height dimension (thickness dimension) to ~2 times. A side plate connecting the lower surface 62 and the ceiling plate 22 is provided, but in the explanatory diagrams of FIGS. However, not all the side panels are provided with the lower air outlets 63, but are appropriately installed according to the layout of the living rooms in the downstairs space 20. - 特許庁A space expanded downward by the lower surface 62 is called an expanded space 60 . Therefore, the air conditioner hollow structure 61 is composed of members forming the inter-floor space 50 and the extension space 60 . It should be noted that the configuration range of the air conditioner hollow structure 61 is the range enclosed by the solid black line.

A ventilation pipe 42 is connected to the floor plate 31 of the upper floor space 30 corresponding to the approximate center of the portion where the lower surface 62 is provided. The arrangement of the lower air outlets 63 on the side plates and the connecting positions of the ventilation pipes 42 will be described using an example of the plan view of the downstairs space 20 in FIG. 5, which will be described later.
Further, when forming the air conditioner hollow structure 61 in the inter-floor space 50, a plurality of upper outlets 64 are provided in the vicinity of the building wall 16 of the building 1 on the floor plate 31 of the upper floor space 30. .

Note that an inter-floor space side plate 65 is provided on a part of the periphery of the building wall 16 in order to provide a ventilation path 26 connecting the downstairs space 20 and the upstairs space 30 . In the present embodiment, the ventilation path 26 is provided for ease of explanation on the drawing, but a space such as a staircase or an atrium described later that connects the downstairs space 20 and the upstairs space 30 may be used.

In addition, the air conditioner hollow structure 61 is provided with a ceiling plate 22, a floor plate 31, a building wall 16, a lower outlet 63, and an upper outlet so that cool air or warm air does not leak outside the lower outlet 63 and the upper outlet 64. The side plates to which the air outlet 64, the side plate 65 of the inter-floor space, and the lower air outlet 63 are attached, and the joints between them are tightly joined so as to have airtightness, or are joined with a sealing material, packing, or the like. ing. Also, the ceiling plate 22, the floor plate 31, the building wall 16, and the inter-floor space side plate 65 are made of a material that is itself airtight.

In the structure of the air conditioner hollow structure 61 as described above, when cold air generated by the air conditioner indoor unit 4 is sent to the air conditioner hollow structure 61 through the ventilation pipe 42, the air conditioner hollow structure 61 The air is blown into the air conditioner hollow structure 61 (inter-floor space 50) while expanding in a substantially conical shape from the opening of the ventilation pipe 42 connected to the . The gas density of the cold air is higher than that of the air inside the air conditioner hollow structure 61 because it is cooled by the air conditioner indoor unit 4 . Therefore, the mass per unit volume of the cool air is heavier than the air inside the air conditioner hollow structure 61 . The cool air sinks into the air inside the air conditioner hollow structure 61 and pushes the air inside the air conditioner hollow structure 61 to the lower outlet 63 without being blocked by the air blowing out.

Furthermore, the cool air falls (falls) toward the lower surface 62 of the air conditioner hollow structure 61 . When the cold air collides with the lower surface 62, the cold air spreads along the lower surface 62 and flows into the downstairs space 20 from the lower surface outlet 63 other than the side plate attached to the lower surface outlet 63 raised around the lower surface 62.例文帳に追加The flow of cold air described above is formed inside the air conditioner hollow structure 61 . The range in which the cool air flows is shown inside the air conditioner hollow structure 61 by a dashed line.
In the drawing, the bottom outlet 63 is shown as being installed on the side surface, but it may be installed on the bottom surface 62 .

Next, when the hot air generated by the air conditioner indoor unit 4 is sent to the air conditioner hollow structure 61 through the ventilation pipe 42, the air pipe 42 is connected to the air conditioner hollow structure 61 in the same manner as the cold air. From the opening, the air is blown out into the air conditioner hollow structure 61 (the inter-floor space 50) while expanding in a substantially conical shape. However, in the case of hot air, since it is heated by the indoor unit 4 for an air conditioner, the gas density of the hot air becomes smaller than that of the air inside the hollow structure 61 for an air conditioner. Therefore, the mass of the warm air per unit volume is lighter than the air inside the air conditioner hollow structure 61 . Then, the warm air spreads around, riding on the air inside the air conditioner hollow structure 61 .

Furthermore, the hot air further flows along the inner surface of the floor plate 31 forming the air conditioner hollow structure 61, and collides with the inner surface of the building wall 16 and the inter-floor space side plate 65 that form the air conditioner hollow structure 61. Then, the warm air flows into the upper space 30 from a plurality of upper air outlets 64 provided on the floor plate 31 . The flow of hot air described above is formed inside the air conditioner hollow structure 61 . The range through which the hot air flows is shown inside the air conditioner hollow structure 61 by a dashed line.
In the drawing, the upper air outlet 64 is shown as being installed on the floor plate 31, but if there is a step on the floor plate, it may be provided on the side surface of the step.

As described above, due to the structure of the air conditioner hollow structure 61, when cold air is flowed and when hot air is flowed, two different air paths for cold air and warm air are formed inside the air conditioner hollow structure 61. will be possible. Specifically, in the case of cold air, the cooling air passage extends from the point where the ventilation pipe 42 is connected to the entire lower surface 62 and does not exceed the lower surface outlet 63 and the side plate to which the lower surface outlet 63 is attached. Become. In the case of hot air, the area along the inner surface of the floor plate 31 where the upper air outlet 64 is provided from the point where the ventilation pipe 42 is connected becomes the heated air passage.

As for the cooling air passage and the heating air passage, the rough planar range can be limited by the lower surface outlet 63 and the side plate to which the lower surface outlet 63 is attached. However, regarding the planar range of the cooling air passage and the heating air passage, the relationship between the temperature of the cold air and the hot air and the temperature of the air inside the air conditioner hollow structure 61, the air velocity (air volume) of the cold air and the warm air, The range varies depending on the shape of the inter-floor space 50, the opening area, position and number of the lower air outlets 63, the opening area, position and number of the upper air outlets 64, and the like.

In terms of spatial range, the cooling air passage inside the air conditioner hollow structure 61 has a substantially quadrangular pyramid shape (when the lower surface 62 is square, the lower surface 62 If is circular, it will be approximately conical.). As for the heating air passage, if the shape of the floor plate 31 is rectangular, the air passage is formed by a section of a substantially rectangular prism with a small thickness, and the maximum size of the air passage is approximately equal to that of the inter-floor space 50 .

The sizes of these cooling air passages and heating air passages vary depending on the air volume of the air conditioner indoor unit 4, the diameter of the ventilation pipe 42, and the internal structure of the air conditioner hollow structure 61. However, in the case of cold air, the air volume of the air conditioner indoor unit 4 is adjusted so as not to exceed the side plate to which the lower outlet 63 is attached, and in the case of hot air, warm air is emitted from the lower outlet 63. Adjust the airflow so that it does not

In FIG. 3, when the indoor unit 4 for an air conditioner generates cold air, the cold air is sent from the ventilation pipe mounting port 47 to the upper space 30 through the ventilation pipe 48 and the plurality of ceiling outlets 33. A case of cooling the space 30 is also illustrated at the same time. In addition, a damper may be provided at the ventilation pipe mounting opening 47 of the air conditioner indoor unit 4 to prevent the cool air from flowing into the ventilation pipe mounting opening 47 . The ventilation hole 36 is provided in the ceiling plate 32 of the upper floor space 30 because the air that has been cooled and heated by the air conditioner indoor unit 4 is recovered and the indoor air that has passed through the upper floor space 30 is circulated. It's for.

In FIG. 4, when the air conditioner indoor unit 4 generates hot air, it is sent from the ventilation pipe mounting port 45 to the underfloor space 10 via the ventilation pipe 46, and is sent from the floor outlet 23 provided in the floor plate 21. A case is illustrated in which hot air is blown into the downstairs space 20 to heat the downstairs space 20 . In addition, a damper may be provided at the ventilation pipe mounting opening 45 of the air conditioner indoor unit 4 to prevent the warm air from flowing into the ventilation pipe mounting opening 45 .

FIG. 5 is a plan view showing an example of the first floor of a detached house.
As shown in FIG. 5, a detached house building, particularly on the first floor, has a living room 20a, a kitchen 20b, a washroom 20c, a bathroom 20d and a toilet 20e. The living room 20a and the kitchen 20b are generally provided on the outer peripheral side of the building where windows and entrances are installed so as to exhibit the functions of lighting and access to the outdoors. In addition, the kitchen 20b, the washroom 20c, the bathroom 20d, and the toilet 20e are also preferably provided on the outer peripheral side of the building in consideration of humidity, plumbing equipment, and the like.

As a result, closets, storerooms, closets, shelves, and the like can be easily arranged in the center of the building. These closets, storerooms, closets, shelves, etc. do not correspond to living rooms (rooms that are continuously used for living, working, entertainment, etc.), so even if the ceiling height is lowered, There is no problem because it is not for the purpose of residence, work, entertainment, etc. described above. Also in the layout of the first floor part of FIG. 5, the part surrounded by the broken line and the expansion space 60 of the hollow structure 61 for the air conditioner are arranged in places other than the living room 20a, the kitchen 20b, the washroom 20c, the bathroom 20d and the toilet 20e. ing. Therefore, the portion surrounded by the dashed line becomes the expansion space 60, so that the ceiling portion is lowered.

The expansion space 60 of the air conditioner hollow structure 61, which is the portion surrounded by the dashed line in FIG. Regarding the difference between the lower surface outlet 63 and the lower surface outlet 63a, the lower surface outlet 63a has an opening area approximately half that of the lower surface outlet 63. As shown in FIG. This is for adjusting the opening area according to the size of the living room in the blowing direction. Also, a ventilation pipe 42 from the air conditioner indoor unit 4 is connected vertically above the circled portion included in the expanded space 60 of the air conditioner hollow structure 61 . As for the connection position of the ventilation pipe 42, it is preferable to be in the center of the expansion space 60. If it is within the range, it can be handled.

In addition, the Building Standards Act does not include a "toilet", "washroom", or "bathroom" in a living room, but from the viewpoint of whether it is possible to lower the ceiling, "toilet", "bathroom", "Washroom" and "bathroom" are explained as being equivalent to a living room.

(Second embodiment)
A hollow structure 66 for an air conditioner, which is a second embodiment of the present invention, will be described with reference to FIGS. 6 and 7. FIG. As explained with the plan view of the building in FIG. In some cases, the ventilation pipe 42 cannot be connected. In the second embodiment, since the expansion space 60 is located at the expansion space 60a, the connection position of the ventilation pipe 42 with respect to the expansion space 60a is above the expansion space 60a but within the expansion space 60a. This is an embodiment in which the upper portion close to the outer periphery of the expansion space 60a is deviated from the center of the expansion space 60a.

As figures for explaining the second embodiment, FIGS. 6 and 7 corresponding to FIGS. 3 and 4 of the first embodiment will be used. 6 and 7 of the second embodiment, the position of the expansion space 60a in the inter-floor space 50 is moved leftward in FIGS. not changed. The second embodiment differs from the first embodiment only in the position of the extension space 60a in the inter-floor space 50 described above. description is omitted.

In the following embodiments, the flow of cold air from the ventilation pipe mounting port 47 and the flow of hot air from the ventilation pipe mounting port 45 are the same as in the first embodiment. Cold air) and solid black arrows (hot air) are not shown. Furthermore, in order to facilitate the explanation of this biased inter-floor space, the wider inter-floor space on the right in FIGS.

In the structure of the air conditioner hollow structure 66 , when the cold air generated by the air conditioner indoor unit 4 is sent to the air conditioner hollow structure 66 through the ventilation pipe 42 , the air flow is connected to the air conditioner hollow structure 66 . From the opening of the pipe 42, the air is blown out into the air conditioner hollow structure 66 (inter-floor spaces 50a, 50b) while expanding in a substantially conical shape. The gas density of the cold air is higher than that of the air inside the air conditioner hollow structure 66 because it is cooled by the air conditioner indoor unit 4 . Therefore, the mass per unit volume of the cool air is heavier than the air inside the air conditioner hollow structure 66 . The cool air sinks into the air inside the air conditioner hollow structure 66 and pushes the air inside the air conditioner hollow structure 66 to the lower outlet 63 without being blocked by the air blowing in the blowing direction.

Of the cold wind that expands and descends, the portion that collides with the inter-floor space 50a spreads rightward along the lower surface 62 of the inter-floor space 50a, but most of the cold wind descends to the lower surface 62 of the expanded space 60a. Then, when the cold air collides with the lower surface 62, the cold air spreads along the lower surface 62 and flows into the downstairs space 20 from the lower surface outlet 63 other than the side plate attached to the lower surface outlet 63 raised around the lower surface 62. - 特許庁. Then, the cold air that spreads in the inter-floor space 50a is also hindered from flowing rightward in the inter-floor space 50a by air having a temperature higher than that of the cold air, and is dragged by the cold air flowing toward the lower outlet 63. and flows toward the bottom outlet 63 . The flow of cold air described above forms a cooling air passage, which is formed inside the air conditioner hollow structure 66 .

Next, when the hot air generated by the air conditioner indoor unit 4 is sent to the air conditioner hollow structure 66 through the ventilation pipe 42, the air inside the air conditioner hollow structure 66 is mixed with the gas of the warm air. Since the density becomes smaller, the mass per unit volume of the hot air becomes lighter than the air inside the air conditioner hollow structure 66 . Therefore, the warm air spreads around as if riding on the air inside the air conditioner hollow structure 66 . Then, the hot air further flows along the inner surface of the floor plate 31 forming the air conditioner hollow structure 66, and collides with the inner surface of the building wall 16 and the inter-floor space side plate 65 forming the air conditioner hollow structure 66. Then, the warm air flows into the upper space 30 from a plurality of upper air outlets 64 provided on the floor plate 31 .

Even in the case of hot air, there is a portion that collides with the inter-floor space 50a, but it is obstructed by the air with a temperature lower than that of the hot air in the expansion space 60a, and is dragged by the flow of the hot air to the direction of the upper air outlet 64. flow to The hot air flow described above is formed inside the air conditioner hollow structure 66 as a heating air passage.

The flow of cold air and warm air described above is illustrated as cooling air passages and hot air passages with dashed lines. Descriptions of other parts of the cooling air passage and the heating air passage are the same as those of the first embodiment, and thus the description is omitted.

(Third Embodiment)
A hollow structure 67 for an air conditioner, which is a third embodiment of the present invention, will be described with reference to FIG. The air conditioner hollow structure 67 differs from the air conditioner hollow structure 61 of the first embodiment only in that a guide plate 68 is provided inside the air conditioner hollow structure 67. Since the portion of 1 is the same as that of the first embodiment, the same reference numerals are attached and the description thereof is omitted. 8, the structure of the hollow structure 67 for an air conditioner will be described as being substantially line-symmetrical, so the cross-sectional view of the ventilation pipe 42 in FIG. A state in which cooled air is sent to the right is shown, and a state in which heated air is sent to the right is illustrated.

The guide plate 68 is installed inside the air conditioner hollow structure 67 below the opening of the ventilation pipe 42 connected to the air conditioner hollow structure 67 with a predetermined distance from the opening. be. Below the opening of the ventilation pipe 42 of the guide plate 68, a hole having a diameter of 1 to 3 times the diameter of the opening of the ventilation pipe 42 is opened, and the periphery of the hole is inclined at an angle of 5 to 30 degrees. , and its outer periphery is formed in a substantially funnel shape that does not exceed the range of the expansion space 60 .

By providing the guide plate 68, cold air can be collected in the central part of the expansion space 60, and hot air can be blocked from flowing toward the expansion space 60. - 特許庁Therefore, by providing the guide plate 68, the lowering ratio of the lower surface 62 of the expansion space 60 (the volume of the expansion space 60) can be reduced. It becomes possible to effectively utilize the space 20 .

As for the cooling air path, the flow of cold air up to the guide plate 68 is substantially the same as in the first embodiment, and the cold air descending past the guide plate 68 is collected in the center of the expansion space 60 . Then, the cold air collected in the center collides with the lower surface 62 of the expansion space 60 and splits left and right toward the lower surface outlet 63 .

As for the hot air passage, the flow of hot air up to the guide plate 68 is almost the same as in the first embodiment. The warm air, which becomes easy to change, changes from the downward direction to the upward direction, and changes from the upward direction to the horizontal direction, spreads in the direction of the inter-floor space 50 on the outer periphery of the air conditioner hollow structure 67 and goes to the upper air outlet 64. .

As for the shape of the guide plate 68, other shapes can be used depending on the shape of the hollow structure 67 for an air conditioner. As long as the purpose is to reduce the volume of the expansion space 60, other shapes may be used. For example, a mesh plate or a plate with multiple holes is used to control the wind speed and direction of cold or warm air, or multiple blades (straightening plates) are provided to change the wind direction of cold or hot air. methods and so on.

The flow of cold air and warm air described above is illustrated as cooling air passages and hot air passages with dashed lines. Descriptions of other parts of the cooling air passage and the heating air passage are the same as those of the first embodiment, and thus the description is omitted.

(Fourth embodiment)
A hollow structure 69 for an air conditioner, which is a fourth embodiment of the present invention, will be described with reference to FIG. The difference between the air conditioner hollow structure 69 and the air conditioner hollow structure 61 of the first embodiment is that the air conditioner hollow structure 69 does not have the expansion space 60, only the inter-floor space 50, Only the enclosure 71 is provided inside the inter-floor space 50, and the other parts are the same as those of the first embodiment, so the same reference numerals are given and the description is omitted. 9, the structure of the hollow structure 69 for an air conditioner will be described as being substantially line symmetrical, so the cross-sectional view of the ventilation pipe 42 in FIG. A state in which cooled air is sent to the right is shown, and a state in which heated air is sent to the right is illustrated.

The enclosure 71 extends a predetermined range from the opening below the opening of the ventilation pipe 42 connected to the air conditioner hollow structure 69, and the air conditioner hollow structure 69 forms a wall on the boundary of the range. It is erected from the ceiling plate 22, which is the lower surface, and is installed at a predetermined distance from the floor plate 31, which is the upper surface of the air conditioner hollow structure 69. As shown in FIG. Regarding the range of the enclosure 71, considering the range in which cold or hot air spreads from the opening of the ventilation pipe 42, the range in which the cold air collides with the ceiling plate 22 at a predetermined angle has a certain margin. to be installed. Therefore, it is determined in consideration of the distance from the ceiling plate 22 to the floor plate 31 of the air conditioner hollow structure 69 and the wind speed of cold air and warm air. Further, in the enclosure 71 of the present embodiment, a guide plate 72 is attached to the upper end in the direction of the opening of the ventilation pipe 42 and is inclined downward by 0 to 30 degrees along the direction. This is for adjusting the wind direction of cold air and warm air, as in the third embodiment. Also, inside the enclosure 71 and in the vicinity of the enclosure 71, a plurality of lower outlets 63a are arranged at appropriate locations. Note that the upper air outlet 64 is the same as in the first embodiment, so the description is omitted.

By providing the enclosure 71, an effect similar to that of the expansion space 60 of the first embodiment can be obtained. Since there is no extension space 60, the downstairs space 20 can be effectively used. However, when the distance between the ceiling plate 22 and the floor plate 31 of the inter-floor space 50 of the hollow structure 69 for the air conditioner is short, or when the wind speed of cold air or warm air is increased, the guidance of the third embodiment is further provided. It is implemented by combining the plates 68 or installing a wind direction guide plate that changes according to the temperature difference between the cooled air and the heated air, which will be described later.

As for the cooling air passage, the flow of cold air to the enclosure 71 is substantially the same as in the first embodiment, and the cold air that enters the enclosure 71 and descends is spread to the inside of the enclosure 71 . Then, the cold air inside the enclosure 71 is divided into left and right and directed to the lower outlet 63a.

As for the heating air path, the flow of hot air up to the enclosure 71 is substantially the same as in the first embodiment, and along the guide plate 72 of the enclosure 71, the hot air changes from descending to ascending directions. The descending hot air spreads in the direction of the inter-floor space 50 on the outer periphery of the air conditioner hollow structure 69 and goes toward the upper outlet 64 .

The flow of cold air and warm air described above is illustrated as cooling air passages and hot air passages with dashed lines. Descriptions of other parts of the cooling air passage and the heating air passage are the same as those of the first embodiment, and thus the description is omitted.

(Fifth embodiment)
A hollow structure 73 for an air conditioner, which is a fifth embodiment of the present invention, will be described with reference to FIGS. 10 and 11. FIG. The difference between the air conditioner hollow structure 73 and the air conditioner hollow structure 69 of the fourth embodiment, which is a partial modification of the air conditioner hollow structure 61 of the first embodiment, is that the air conditioner hollow structure The enclosure 71 to which the guide plate 72 provided on the body 69 is attached is replaced by an enclosure 74 in which the size of the upper guide plate is increased to reduce the area of the opening. , and other parts are the same as those in the first and fourth embodiments, so the same reference numerals are given and the description thereof is omitted. Inside the enclosure 74 and in the vicinity of the enclosure 74, a plurality of lower outlets 63a are arranged at suitable locations. Also, the top outlet 64 is the same as in the first embodiment, so the description is omitted.

The airflow direction guide plate 75 is positioned below the opening of the ventilation pipe 42 connected to the air conditioner hollow structure 73 at a predetermined distance from the opening, inside the air conditioner hollow structure 73, and surrounded by an enclosure 74. It is installed in the opening on the upper side of the The wind direction guide plate 75 has a diameter one to three times as large as the diameter of the opening of the ventilation pipe 42, and is approximately the same size as the top opening of the enclosure 74 or slightly smaller. Further, the enclosure 74 is formed to have a structure different from that of the fourth embodiment and the size of the opening on the upper surface described above. The wind direction guide plate 75 is horizontally pivoted, and when the temperature of the cooled air drops below 14 to 10 degrees Celsius, the shape is deformed. return to its original shape. A driving member made of a so-called shape memory alloy is attached. By this driving member, the wind direction guide plate 75 moves vertically when cold air hits it, and moves horizontally when it hits warm air to close the opening of the enclosure 74 .

A hollow structure 73 for an air conditioner is provided with an enclosure 74 having a wind direction guide plate 75. As shown in FIG. 11 can flow outside enclosure 74 . Therefore, by providing the enclosure 74 provided with the wind direction guide plate 75 in the air conditioner hollow structure 73, the cold air and warm air paths can be reliably separated, and the expansion space 60 can be eliminated. , the downstairs space 20 can be effectively used.

As for the cooling air path in FIG. 10, the cold air flow up to the air direction guide plate 75 is almost the same as in the fourth embodiment, and the cold air descending into the enclosure 74 provided with the air direction guide plate 75 is collected. can be done. Then, the cold air collected in the center collides with the ceiling plate 22 of the inter-floor space 50, splits into left and right, and heads toward the lower outlet 63a.

11, the flow of hot air up to the air direction guide plate 75 is almost the same as in the fourth embodiment, and when the hot air collides with the enclosure 74 closed by the air direction guide plate 75, , the hot air changes from the downward direction to the upward direction, and the warm air changed from the upward direction to the horizontal direction spreads in the direction of the inter-floor space 50 on the outer periphery of the air conditioner hollow structure 73 and goes to the upper air outlet 64. .

The flow of cold air and warm air described above is illustrated as cooling air passages and hot air passages with dashed lines. Descriptions of other portions of the cooling air passage and the heating air passage are the same as those of the first and fourth embodiments, and therefore are omitted.

(Sixth embodiment)
The air conditioner hollow structure 77 of the present invention will be described with reference to FIG. The difference between the air conditioner hollow structure 77 and the air conditioner hollow structure 61 of the fourth embodiment, which is a partial modification of the air conditioner hollow structure 61 of the first embodiment, is that the air conditioner hollow structure As for the body 77, there is no expansion space 60, only the inter-floor space 50, an enclosure 78 is provided inside the inter-floor space 50, and only a wind direction guide plate 79 covering only the central portion of the enclosure 78 is provided. Since other parts are the same as those in the first and fourth embodiments, the same reference numerals are given and descriptions thereof are omitted.
12, the structure of the air conditioner hollow structure 77 will be described as being substantially line symmetrical, so the cross-sectional view of the ventilation pipe 42 in FIG. A state in which cooled air is sent to the right is shown, and a state in which heated air is sent to the right is illustrated.

The enclosure 78 extends a predetermined range from the opening below the opening of the ventilation pipe 42 connected to the hollow structure 77 for the air conditioner, and the hollow structure 77 for the air conditioner forms a wall on the boundary of the range. It is erected from the ceiling plate 22, which is the lower surface, and is installed at a predetermined distance from the floor plate 31, which is the upper surface of the air conditioner hollow structure 77. As shown in FIG. Regarding the range of the enclosure 78, considering the range in which cold or hot air spreads from the opening of the ventilation pipe 42, the range in which the cold air collides with the ceiling board 22 at a predetermined angle has a certain margin. to be installed. Therefore, it is determined in consideration of the distance from the ceiling plate 22 to the floor plate 31 of the air conditioner hollow structure 77 and the wind speed of cold air and warm air. Further, in the enclosure 78 of this embodiment, a guide plate is not attached to the upper end, but it may be attached. Inside the enclosure 78 and in the vicinity of the enclosure 78, a plurality of lower outlets 63a are arranged at suitable locations. The top outlet 64 is the same as in the first embodiment, so the description is omitted.

The wind direction guide plate 79 is positioned below the opening of the ventilation pipe 42 connected to the air conditioner hollow structure 77 at a predetermined distance from the opening and inside the air conditioner hollow structure 77. It is installed so as to block a part of the opening on the upper surface side of the. The wind direction guide plate 79 has a diameter four to five times the diameter of the opening of the ventilation pipe 42 . Also, the enclosure 78 is formed to have a size that is just raised like a wall, unlike the fourth embodiment. The wind direction guide plate 79 is horizontally divided into two and supported in a butterfly wing shape. It returns to its original shape when the temperature reaches 16-20 degrees Celsius. A driving member made of a so-called shape memory alloy is attached to each of the two blades. By this driving member, the wind direction guide plate 79 moves obliquely downward when hit with cold air, and moves obliquely upward when hit with warm air to change the direction of the air.

By providing the enclosure 78 and the wind direction guide plate 79, the same effect as the expansion space 60 of the first embodiment can be obtained. Since there is no extension space 60, the downstairs space 20 can be effectively used.

As for the cooling air passage, the flow of cold air to the enclosure 78 is substantially the same as in the first embodiment, and the cooling air flows along the wind direction guide plate 79 so as to enter the interior of the enclosure 78 and spread to the inner range of the enclosure 78. flow to Then, the cold air inside the enclosure 78 is divided into left and right and directed to the lower outlet 63a.

As for the hot air path, the air direction guide plate 79 makes it easier for the hot air to change from downward to upward direction than in the first embodiment, and the hot air flows along the floor plate 31 of the hollow structure 77 for the air conditioner. flow. Then, the hot air flowing horizontally spreads toward the inter-floor space 50 on the outer circumference of the air conditioner hollow structure 77 and goes toward the upper outlet 64 .

The flow of cold air and warm air described above is illustrated as cooling air passages and hot air passages with dashed lines. Descriptions of other portions of the cooling air passage and the heating air passage are the same as those of the first and fourth embodiments, and therefore are omitted.

(Seventh embodiment)
A hollow structure 81 for an air conditioner of the present invention will be described with reference to FIGS. 13 and 14. FIG. The difference between the air conditioner hollow structure 81 and the air conditioner hollow structure 61 of the first embodiment is that the air conditioner hollow structure 81 has an atrium 27 between the downstairs space 20 and the upstairs space 30 . is provided, so that the inter-floor space on the side where the atrium 27 is provided is narrowed to become an inter-floor space 50c. The expansion space on the side where the atrium 27 is provided also expands downward to form an expansion space 60b that narrows obliquely downward. It is an air outlet 63b. A wall 82 is provided at the boundary of only the side of the expansion space 60b that contacts the inter-floor space 50. As shown in FIG. Since other parts are the same as those of the first embodiment, the same reference numerals are given and descriptions thereof are omitted.

The wall 82 is provided at the boundary between the expansion space 60b and the inter-floor space 50c, and has a shape that falls toward the expansion space 60b (going obliquely upward from the inter-floor space 50c toward the expansion space 60b), The upper end of the wall 82 is provided with a predetermined gap from the floor plate 31 of the air conditioner hollow structure 81 . A guide plate 83 is provided at the upper end of the wall 82 so as to fall toward the expansion space 60b (going obliquely downward from the upper end of the wall 82 toward the expansion space 60b). The expansion space 60b is below the opening of the ventilation pipe 42 connected to the hollow structure 81 for the air conditioner, and extends from the opening to a predetermined range. A wall 82 with a guide plate 83 provided at the boundary between the expansion space 60b and the inter-floor space 50c is also provided outside the opening of the ventilation pipe 42 at a predetermined distance.

By providing the wall 82, in the case of cold air, cold air can be easily collected in the expansion space 60b, and cold air from the expansion space 60b to the inter-floor space 50c can be blocked. It is possible to make it easier to collect hot air in the space 50c and to block the hot air flowing toward the expansion space 60b. Therefore, even if the inter-floor space 50c becomes smaller when the atrium 27 is provided by providing the wall 82, cold air and warm air are generated due to the difference in shape between the inter-floor space 50 and the inter-floor space 50c. It is possible to balance the flow of

The flow of cold air will be described with reference to FIG. is almost the same as The cold air colliding with the guide plate 83 provided at the upper end of the wall 82 on the wall side is sucked by the cold air flowing in the direction of the lower outlet 63b, does not flow to the inter-floor space 50c side, gathers and descends, The cold air directly directed to the lower outlet 63 and the lower outlet 63b and the cold air colliding with the lower surface 62 of the expansion space 60b and divided into left and right and directed to the lower outlet 63 flow into the downstairs space 20. - 特許庁

The flow of hot air will be described with reference to FIG. is substantially the same as the embodiment of When the hot air collides with the guide plate 83 provided at the upper end of the wall 82 on the wall side, the hot air is more likely to change from downward to upward direction, and after rising, the hot air flowing horizontally is used by the air conditioner. It expands in the direction of the inter-floor space 50 c on the outer periphery of the hollow structure 81 and goes to the upper outlet 64 .

The shape of the wall 82 can be other shapes depending on the shape of the air conditioner hollow structure 81 . The purpose is to adjust the balance with other inter-floor spaces 50 due to the smaller inter-floor space 50c and the relationship between the inter-floor space 50c and the extended space 60b. The guide plate 68 of the embodiment, the enclosure 71 and the guide plate 72 of the fourth embodiment, the wind direction guide plates 75 and 79 of the fifth or sixth embodiment, etc. may be used.

The flow of cold air and warm air described above is illustrated as cooling air passages and hot air passages with dashed lines. Descriptions of other parts of the cooling air passage and the heating air passage are the same as those of the first embodiment, and thus the description is omitted.

It should be noted that each of the above-described embodiments can be implemented in combination.

1: Building 3: Outdoor unit for air conditioner 4: Indoor unit for air conditioner 5: Piping 10: Underfloor space 16: Building wall 17: Foundation 18: Roof 20: Downstairs space, 20a: Living room, 20b: Kitchen, 20c: Washroom place, 20d: bathroom,
20e: Toilets 21, 31: Floorboards 22, 32: Ceiling plate 23: Floor outlet 26: Ventilation path 27: Atrium 30: Upstairs space 33: Ceiling outlet 36: Ventilation hole 40: Ceiling space 41, 45, 47 : Ventilation pipe mounting openings 42, 46, 48: Ventilation pipes 50, 50a, 50b, 50c: Inter-floor space 51: Floor beam 52: Joist 53: Hanging tree 54: Base frame 60, 60a, 60b: Expansion space 61, 66 , 67, 69, 73, 77, 81: air conditioner hollow structure 62: lower surfaces 63, 63a, 63b: lower outlet 64: upper outlet 65: inter-floor space side plates 68, 72, 83: guide plate 71, 74, 78: Enclosures 75, 79: Wind guide plate 82: Wall

A hollow structure for an air conditioner of the first invention is provided in a building having a living room below the floor and a living room above the floor and a space between the living room below the floor and the living room above the floor,
A hollow structure is formed by expanding the space or adding a member inside the space,
The hollow structure is connected to a ventilation pipe through which either air cooled with respect to the air in the building or air heated with respect to the air in the building is sent,
The hollow structure has a structure in which different cooling air paths and heating air paths are formed for the cooled air and the heated air due to differences in properties of the cooled air and the heated air. death,
an air outlet at an end of the hollow structure of the cooling air passage is provided in the downstairs living room;
A blowout port at an end of the hollow structure of the heating air passage is provided in the living room on the upper floor,
A structure in which different cooling air passages and heating air passages are formed for the cooled air and the heated air provided in the hollow structure due to the difference in properties of the cooled air and the heated air. but,
The ventilation pipe expands downward a space between the downstairs living room and the upstairs living room around a predetermined circumference extending downward from the point where the ventilation pipe is connected to the hollow structure, and the cooling air is supplied to the downwardly expanded point. The structure is characterized in that the air outlet is provided at the end of the hollow structure of the air passage.

A hollow structure for an air conditioner according to a second aspect of the present invention is provided in a building having a living room below the floor and a living room above the floor, and a space between the living room below the floor and the living room above the floor.
A hollow structure is formed by expanding the space or adding a member inside the space,
The hollow structure is connected to a ventilation pipe through which either air cooled with respect to the air in the building or air heated with respect to the air in the building is sent,
The hollow structure has a structure in which different cooling air paths and heating air paths are formed for the cooled air and the heated air due to differences in properties of the cooled air and the heated air. death,
an air outlet at an end of the hollow structure of the cooling air passage is provided in the downstairs living room;
A blowout port at an end of the hollow structure of the heating air passage is provided in the living room on the upper floor,
A structure in which different cooling air passages and heating air passages are formed for the cooled air and the heated air provided in the hollow structure due to the difference in properties of the cooled air and the heated air. but,
An enclosure is provided in the space between the living room on the lower floor and the living room on the upper floor extending downward from the point where the ventilation pipe is connected to the hollow structure, and the space is provided inside the area where the enclosure is provided. The structure is characterized in that the air outlet is provided at the end of the hollow structure of the cooling air passage.

A hollow structure for an air conditioner according to a third aspect of the invention is provided with a wind direction guide plate that changes according to the temperature difference between the cooled air and the heated air. It is characterized by having

A hollow structure for an air conditioner according to a fourth aspect of the invention is the air cooled with respect to the air in the building in any one of claims 1 to 3 , or the air in the building It is characterized in that the ventilation pipes to which either one of the heated air is sent are connected to the upper surface side of the hollow structure by a single pipe.

Claims (5)

In a building having a living room on the lower floor and a living room on the upper floor, and a space between the living room on the lower floor and the living room on the upper floor,
A hollow structure is formed by expanding the space or adding a member inside the space,
The hollow structure is connected to a ventilation pipe through which either air cooled with respect to the air in the building or air heated with respect to the air in the building is sent,
The hollow structure has a structure in which different cooling air paths and heating air paths are formed for the cooled air and the heated air due to differences in properties of the cooled air and the heated air. death,
an air outlet at an end of the hollow structure of the cooling air passage is provided in the downstairs living room;
A hollow structural body for an air conditioner, wherein an air outlet at an end of the hollow structural body of the heating air passage is provided in the living room on the upper floor. A structure in which different cooling air passages and heating air passages are formed for the cooled air and the heated air provided in the hollow structure due to the difference in properties of the cooled air and the heated air. but,
The ventilation pipe expands downward a space between the downstairs living room and the upstairs living room around a predetermined circumference extending downward from the point where the ventilation pipe is connected to the hollow structure, and the cooling air is supplied to the downwardly expanded point. 2. A hollow structure for an air conditioner according to claim 1, wherein said hollow structure has a structure in which said outlet is provided at an end of said hollow structure of an air passage. A structure in which different cooling air passages and heating air passages are formed for the cooled air and the heated air provided in the hollow structure due to the difference in properties of the cooled air and the heated air. but,
An enclosure is provided in the space between the living room on the lower floor and the living room on the upper floor extending downward from the point where the ventilation pipe is connected to the hollow structure, and the space is provided inside the area where the enclosure is provided. 2. The hollow structure for an air conditioner according to claim 1, wherein said air outlet is provided at an end of said hollow structure of said cooling air passage. 4. The hollow structure for an air conditioner according to claim 2, further comprising a wind direction guide plate that changes depending on the temperature difference between the cooled air and the heated air. The ventilation pipes through which either the air cooled with respect to the air in the building or the air heated with respect to the air in the building is sent are one pipe on the upper surface side of the hollow structure. 5. The hollow structure for an air conditioner according to any one of claims 1 to 4, wherein the hollow structure is connected.

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