JP7031916B1 - Hollow structure for air conditioners - Google Patents

Abstract

PROBLEM TO BE SOLVED: To have a problem that the conventional technique makes a resident uncomfortable because cold air drifts to the feet in an upper floor room during cooling and warm air comes from a ceiling in a lower floor room during heating. SOLUTION: In a hollow structure 61 for an air conditioner, a hollow structure 50, 60 which is an extension of the floor space 50 is formed in a building 1 provided with an interfloor space 50, and the hollow structure 50, 60 is air-conditioned. A ventilation pipe 42 through which either the cooled air or the heated air is sent from the indoor unit 4 for the apparatus is connected, and the cooled air and the heated air are connected to the hollow structures 50 and 60. The cooling air passage and the heating air passage different from each other have a structure formed by the difference in the properties of the cooled air and the heated air, and the lower surface outlet 63 of the cooling air passage is provided in the downstairs space 20. An upper air outlet 64 of the heating air passage is provided in the upper space 30. [Selection diagram] Fig. 1

Description

The present invention relates to a hollow structure for an air conditioner that utilizes the space between the living room downstairs and the living room upstairs.

As a conventional example, an air conditioning system that air-conditions the entire interior of a building such as a general house has been proposed and has various structures and functions. As related to the present invention, for example, in Patent Document 1. There are the described "building ventilation pipeless air conditioning system", the "air conditioning system" described in Patent Document 2, the "residential air conditioning system" described in Patent Document 3, and the like.

In the "building ventilation pipeless air conditioning system" described in Patent Document 1, the floor constituent member that separates the upper and lower chambers of the building body is a hollow structure having a hollow portion, and the hollow structure is air-conditioned. It is characterized in that an air flow is circulated to control the temperature of the hollow portion of the floor constituent member, and an outlet is opened at a predetermined position so that the air can be discharged to at least one of the upper and lower chambers.

In the "building ventilation pipeless air conditioning system" described in Patent Document 2, a hollow structure formed so as to be integrated with the building frame on the ceiling of a corridor that divides or connects a plurality of living rooms of the building body. An air conditioner is built in, and the air outlet that has been air-conditioned by this air conditioner is installed on the living room side at the top of the wall facing the corridor.

In the "residential air-conditioning system" described in Patent Document 3, the invention of installing the air supply ventilation pipe 9 by using the ceiling back 8 on the first floor is disclosed, but the supply of the ceiling back 8 on the first floor is disclosed. The ventilation pipe 9 is intended to air-condition the perimeter zone for the living room 6 on the first floor, and the air outlet for cooling or heating is also arranged near the ceiling wall on the first floor. ..

Japanese Unexamined Patent Publication No. 2-242032 Japanese Unexamined Patent Publication No. 11-325508 Japanese Unexamined Patent Publication No. 2011-133156

Since the "building ventilation pipe-less air conditioning system" described in Patent Document 1 does not use a ventilation pipe, it is possible to avoid deterioration of air conditioning efficiency due to the ventilation pipe. There was a problem that the occupants of the upper floor room were uncomfortable because the cold air rose from their feet. Further, during heating, warm air comes from the ceiling, but when trying to heat the entire lower floor living room, there is a problem that the air volume increases and a feeling of airflow is generated, which makes the resident uncomfortable.

Since both the "air conditioning system" described in Patent Document 2 and the "residential air conditioning system" described in Patent Document 3 blow cold air or hot air from the ceiling, they are used during heating and cooling. There was a problem that it was not a countermeasure against the discomfort of the resident's air conditioning.

In order to solve the above problems, the following technical means are taken in the present invention.

The hollow structure for an air conditioner according to the first invention is a building having a room downstairs and a room upstairs and having a space between the room downstairs and the room upstairs.
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 the air cooled to the air in the building or the air heated to the air in the building is sent.
The hollow structure has a structure in which different cooling air passages and heating air passages are formed between the cooled air and the heated air due to the difference in the properties of the cooled air and the heated air. death,
An outlet at the end of the hollow structure of the cooling air passage is provided in the living room downstairs.
An outlet at the end of the hollow structure of the heated air passage is provided in the living room on the floor.
A structure in which a cooling air passage and a heating air passage, which are different between the cooled air and the heated air provided in the hollow structure, are formed by the difference in the properties of the cooled air and the heated air. but,
The space is expanded downward between the room below the floor and the room above the floor, which extends downward from the location where the ventilation pipe is connected to the hollow structure, and the cooling is performed at the location where the ventilation pipe extends downward. It is characterized in that the structure is provided with the outlet at the end of the hollow structure of the air passage.

The hollow structure for an air conditioner according to the second invention is a building having a room downstairs and a room upstairs and having a space between the room downstairs and the room upstairs.
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 the air cooled to the air in the building or the air heated to the air in the building is sent.
The hollow structure has a structure in which different cooling air passages and heating air passages are formed between the cooled air and the heated air due to the difference in the properties of the cooled air and the heated air. death,
An outlet at the end of the hollow structure of the cooling air passage is provided in the living room downstairs.
An outlet at the end of the hollow structure of the heated air passage is provided in the living room on the floor.
A structure in which a cooling air passage and a heating air passage, which are different between the cooled air and the heated air provided in the hollow structure, are formed by the difference in the properties of the cooled air and the heated air. but,
A space is provided between the room below the floor and the room above the floor, which extends downward from the place where the ventilation pipe is connected to the hollow structure, and the inside of the place where the fence is provided is described. The hollow structure of the cooling air passage is characterized by having the outlet provided at the end thereof.

The hollow structure for an air conditioner according to the third invention is provided with a wind direction guide plate that changes depending on the temperature difference between the cooled air and the heated air in the invention according to claim 1 or 2. It is characterized by being.

In the invention of any one of claims 1 to 3 , the hollow structure for an air conditioner of the fourth invention relates to the air cooled with respect to the air in the building or the air in the building. The ventilation pipe to which any one of the heated air is sent is connected to the upper surface side of the hollow structure by one pipe.

Having the above technical means has the following effects.

It has a room downstairs and a room upstairs, and the space between the room downstairs and the room upstairs is effectively used. Since it can be used to heat the living room upstairs, it is possible to provide air conditioning that does not make residents uncomfortable.

It is a perspective view which shows the appearance of the building which carried out the hollow structure for the air conditioner which concerns on 1st Embodiment of this invention. It is an enlarged view of the part A of FIG. It is explanatory drawing of the cooling air passage in the hollow structure for an air conditioner which concerns on 1st Embodiment of this invention. It is explanatory drawing of the heating air passage using the hollow structure for an air conditioner which concerns on 1st Embodiment of this invention. It is a top view of the building for demonstrating the hollow structure for an air conditioner which concerns on 1st Embodiment of this invention. It is explanatory drawing of the cooling air passage in the hollow structure for an air conditioner which concerns on 2nd Embodiment of this invention. It is explanatory drawing of the heating air passage using the hollow structure for an air conditioner which concerns on 2nd Embodiment of this invention. It is explanatory drawing of the cooling air passage and the heating air passage in the hollow structure for an air conditioner which concerns on 3rd Embodiment of this invention. It is explanatory drawing of the cooling air passage and the heating air passage using the hollow structure for an air conditioner which concerns on 4th Embodiment of this invention. It is explanatory drawing of the cooling air passage in the hollow structure for an air conditioner which concerns on 5th Embodiment of this invention. It is explanatory drawing of the heating air passage using the hollow structure for an air conditioner which concerns on 5th Embodiment of this invention. It is explanatory drawing of the cooling air passage and the heating air passage using the hollow structure for an air conditioner which concerns on 6th Embodiment of this invention. It is explanatory drawing of the cooling air passage in the hollow structure for an air conditioner which concerns on 7th Embodiment of this invention. It is explanatory drawing of the heating air passage using the hollow structure for an air conditioner which concerns on 7th Embodiment of this invention.

The embodiment of the invention will be specifically described with reference to the drawings.

(First Embodiment)
The structure of the hollow structure 61 for an air conditioner 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 (1st floor in FIG. 1) and an upstairs space 30 (2nd floor in FIG. 1). In order to make it easy to understand the inside of the so-called two-story building 1, the inside of the building 1 is shown so as to be able to see the inside of the building 1 except for the building wall 16, floor boards 21, 31, ceiling boards 22, 32, etc. on the front side.
The exterior of the building 1 has a building wall 16 on the side surfaces in four directions (a window and an entrance / exit are required for a part of the building wall, but illustration and description are omitted in this figure), and a roof 18 on the top surface. It is provided. The downstairs space 20 and the upstairs space 30 are formed inside.

The lower floor space 20 is divided into upper and lower parts by a floor plate 21 and a ceiling plate 22, and is surrounded by a building wall 16. The floor space 30 is divided into upper and lower parts by a floor plate 31 and a ceiling plate 32, and is surrounded by a building wall 16. At the same time that the downstairs space 20 and the upstairs space 30 are provided, the underfloor space 10 is provided between the floor plate 21 of the downstairs space 20 and the foundation 17, and the ceiling plate 32 and the roof 18 of the upstairs space 30 are provided. An attic space (attic space) 40 is provided between the ceilings, and an interfloor space 50 is provided between the ceiling plate 22 of the downstairs space 20 and the floor plate 31 of the upstairs space 30.

In addition, although the floor space is described only in the form of the space between the first floor and the second floor in the embodiment of the present application, the floor space is not limited to the first floor and the second floor, but the second floor. The present embodiment can also be implemented for the space between the third floor and the space between the upper and lower floors such as the space between the third floor and the fourth floor.

An air conditioner outdoor unit 3 is provided outside the building 1, and an air conditioner indoor unit 4 is provided in the space 40 behind the ceiling of the building 1.
A circulation circuit is formed by a pipe 5 between the outdoor unit 3 for the air conditioner and the indoor unit 4 for the air conditioner.
The heat exchanger provided inside the indoor unit 4 for the air conditioner is heated or cooled, and the indoor air of the building 1 or, in the case of ventilation, the outdoor air is passed by a blower to be heated by the heat exchanger. It is possible to generate cooled air or cooled air.

The flow of air heated by a blower (fan) will be abbreviated as hot air below, and the flow of air cooled by a blower will be abbreviated as cold air below.
Regarding the outdoor unit 3 for the air conditioner and the indoor unit 4 for the air conditioner, a method of compressing the refrigerant and using it for heating or cooling, or a method of cooling the antifreeze liquid with a freezing device and heating the antifreeze liquid with electricity, oil, gas, etc. It has been implemented.

The indoor unit 4 for an air conditioner is provided with ventilation pipe attachment ports 41, 45, 47. Cold air or hot air is generated inside the indoor unit 4 for the air conditioner, but hot air or cold air can be sent to the ventilation pipe mounting port 41, and only hot air is blown to the ventilation pipe mounting port 45. Only cold air can be blown to the pipe mounting port 47.
Therefore, when the indoor unit 4 for the air conditioner switches from cold air to hot air and blows air, a damper for switching the air passage is provided inside the indoor unit 4 for the air conditioner, and the ventilation pipe mounting port 45 and the ventilation are provided. Cold air or hot air can be blown by selecting any of the pipe mounting ports 47.
Further, by installing a plurality of blowers (fans) in the indoor unit 4 for the air conditioner, it is also possible to switch the ventilation at each ventilation pipe attachment port even during cold air or hot air.
The ventilation pipe is a pipe that carries gas, and is also called a duct, an air duct, or an air duct pipe. In addition, the ventilation pipe is generally a circular pipe because it is easy to manufacture, but it may be a square pipe.

A ventilation pipe 42 having airtightness is connected to the ventilation pipe attachment port 41, and the ventilation pipe 42 has a ceiling space 40, a ceiling plate 32 of an upper space 30, an upper space 30, and an upper space 30. It passes through the floor plate 31 and is connected to the inter-floor space 50 provided between the upstairs space 30 and the downstairs space 20.

A ventilation pipe 46 having airtightness is connected to the ventilation pipe attachment port 45, and the ventilation pipe 46 has a ceiling space 40, a ceiling plate 32 of an upper space 30, an upper space 30, and an upper space 30. It passes through the floor plate 31, the ceiling plate 22 of the downstairs space 20, the downstairs space 20, and the floor plate 21 of the downstairs space 20, and is connected to the underfloor space 10.
A ventilation pipe 48 having airtightness is connected to the ventilation pipe attachment port 47, and the ventilation pipe 48 is branched into a plurality of parts inside the ceiling space 40 and a plurality of ceiling outlets opened in the upper space 30. It is connected to 33.
The details of the outlets for cold air or hot air to the downstairs space 20 and the upstairs space 30 will be described with reference to FIGS. 3 and 4 to be described later.

The indoor unit 4 for an air conditioner may be equipped with a function of ventilating by combining a total heat exchanger or a sensible heat exchanger. In this case, fresh air is taken into the indoor unit 4 for the air conditioner from the outside (outdoor) of the building 1, and the heat of the indoor air is recovered by the total heat heat exchanger or the exponential heat exchanger of the building 1. It is possible to generate hot air and cold air while ventilating while maintaining a state in which the room temperature does not change easily.

The applicant of the present application has published the invention of a ventilation device combining cold air / heating / ventilation / hot water supply and solar heat in Japanese Patent Laid-Open No. 2017-172901, and the Japanese Patent Application Laid-Open No. It can be carried out by combining the ventilation system of No. 2017-172901. Therefore, a detailed description of the ventilation device will be omitted. Since the invention of Japanese Patent Application Laid-Open No. 2017-172901 is a ventilation device, the outlet is referred to 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.

As a general construction method for a detached house, 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.

The part A (the part indicated by the broken line of the circle) in FIG. 1 will be described by taking the case of the wooden frame construction method of FIG. 2 as an example. When constructing a building 1 having a living room downstairs (downstairs space 20) and a living room upstairs (upstairs space 30), a structural material that supports the floor of the living room upstairs, for example, a wooden frame construction method In this case, after assembling the floor board 31 on the floor using the floor beams 51 and the joists 52, the ceiling board 22 of the downstairs space 20 is suspended from the floor beams 51 and the joists 52 that support the floor board 31 of the floor space 30. In many cases, a ceiling plate 22 is attached by providing a base bone 54 such as a field edge or a field edge receiver using a wood 53 or a hanging metal fitting. Therefore, an interfloor space 50 is created between the floor plate 31 of the upper space 30 and the ceiling plate 22 of the lower space 20 due to the structural material of the building 1. Although there are pillars as the structural material of the building 1, the description thereof will be omitted because it is not a structural material that closes the interfloor space 50.
As a general construction method for a detached house, there are various construction methods such as a two-by-four construction method, a concrete construction method, and a prefabricated construction method in addition to the wooden frame construction method. In any case, the floor space 50 is fireproof and soundproof. It is provided for the purpose of preventing vibration from upstairs.

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

In FIGS. 3 and 4, the configuration of the hollow structure 61 for an air conditioner provided in the floor space 50 will be described. The hollow structure 61 for an air conditioner includes a ceiling 22 plate of the downstairs space 20 constituting the floor space 50, a floor plate 31 of the upstairs space 30, a ceiling plate 22 of the downstairs space 20, and the upstairs space. The basic configuration is a building wall 16 that covers the periphery of the floor plate 31 of 30. The structural material that supports the floor plate 31 and the ceiling plate 22 described with reference to FIG. 2 is also a member that forms the interfloor space 50.

In this basic configuration, for a certain range of the central portion of the ceiling plate 22 of the downstairs space 20, for example, the height dimension (thickness dimension) of the interfloor space 50 is 1 times or more, preferably 1 from the height of the ceiling plate 22. The lower surface 62, which is the lowermost surface of the hollow structure 61 for an air conditioner, is formed by lowering the height to twice the height (thickness). A side plate connecting the lower surface 62 and the ceiling plate 22 is provided, but in the explanatory views of FIGS. 3 and 4, the side plate is provided with a lower surface outlet 63 for explanation, and only the lower surface outlet 63 is shown. However, the lower surface outlet 63 is not provided on all the side plates, but is appropriately installed according to the arrangement of the living room in the downstairs space 20. The space expanded downward on the lower surface 62 is called an expansion space 60. Therefore, the hollow structure 61 for the air conditioner is composed of the members forming the floor space 50 and the expansion space 60. The configuration range of the hollow structure 61 for the air conditioner is the range surrounded by the thick black line.

A ventilation pipe 42 is connected to the floor plate 31 of the floor space 30 corresponding to substantially the center of the portion where the lower surface 62 is provided. The arrangement of the lower surface outlet 63 on this side plate and the connection position of the ventilation pipe 42 will be described with reference to an example of a plan view of the downstairs space 20 of FIG. 5 to be described later.
Further, when the hollow structure 61 for an air conditioner is formed in the inter-floor space 50, a plurality of upper surface outlets 64 are provided in the vicinity of the building wall 16 of the building 1 of the floor plate 31 of the floor plate 31 of the floor space 30. ..

As for the building wall 16, an interfloor space side plate 65 is provided for a part of the surrounding area to provide a ventilation passage 26 connecting the downstairs space 20 and the upstairs space 30. In this embodiment, the ventilation passage 26 is provided for easy explanation on the drawing, but a space in which the downstairs space 20 and the upstairs space 30 are connected, such as a staircase or a stairwell described later, may be used.

Further, the hollow structure 61 for an air conditioner has a ceiling plate 22, a floor plate 31, a building wall 16, a lower surface outlet 63, and an upper surface so that cold air or hot air does not leak except for the lower surface outlet 63 and the upper surface outlet 64. The side plates to which the air outlet 64, the inter-floor space side plate 65, and the lower surface air outlet 63 are attached and the joint portions of each other are closely joined so as to have airtightness, or are bonded with a sealing material, packing, or the like. ing. Further, for the ceiling plate 22, the floor plate 31, the building wall 16, and the inter-floor space side plate 65, materials having airtightness by themselves are used.

In the structure of the hollow structure 61 for an air conditioner as described above, when the cold air generated by the indoor unit 4 for the air conditioner is sent to the hollow structure 61 for the air conditioner by the ventilation pipe 42, the hollow structure 61 for the air conditioner From the opening of the ventilation pipe 42 connected to the air conditioner, the air conditioner is blown into the hollow structure 61 (inter-floor space 50) while expanding in a substantially conical shape. The density of the cold air gas with respect to the air inside the hollow structure 61 for the air conditioner becomes large because it is cooled by the indoor unit 4 for the air conditioner. Therefore, the mass per unit volume of the cold air becomes heavier than the air inside the hollow structure 61 for the air conditioner. Then, the cold air sinks into the air inside the air conditioner hollow structure 61 without being hindered by the air in the blowing direction, and pushes the air inside the air conditioner hollow structure 61 to the lower surface outlet 63.

Further, the cold air falls (downs) toward the lower surface 62 of the hollow structure 61 for the air conditioner. When the cold air collides with the lower surface 62, the cold air spreads along the lower surface 62 and flows from the lower surface outlet 63 other than the side plate to which the lower surface outlet 63 raised around the lower surface 62 is attached to the downstairs space 20. The above flow of cold air is formed inside the hollow structure 61 for an air conditioner. The range in which the cold air flows is illustrated inside the hollow structure 61 for an air conditioner by a alternate long and short dash line.
Although the lower surface outlet 63 is shown in the figure as being installed on the side surface, it may be provided on the lower surface 62.

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

Further, the warm 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 forming the air conditioner hollow structure 61 and the inner surface of the floor space side plate 65. Then, the warm air flows from the plurality of upper surface outlets 64 provided on the floor plate 31 to the floor space 30. The above flow of warm air is formed inside the hollow structure 61 for an air conditioner. The range in which the warm air flows is illustrated inside the hollow structure 61 for an air conditioner by a alternate long and short dash line.
In the figure, the upper surface outlet 64 is shown assuming that it is installed on the floor plate 31, but if the floor plate has a step, it may be provided on the side surface of the step.

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

Regarding the cooling air passage and the heating air passage, the rough planar range can be limited by the side plate to which the lower surface air outlet 63 and the lower surface air outlet 63 are 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 hollow structure 61 for the air conditioner, and the wind speed (air volume) of the cold air and the hot air. The range varies depending on the shape of the floor space 50, the opening area, position, number of the lower surface outlet 63, the opening area, position, number, etc. of the upper surface outlet 64.

Speaking as a spatial range, the cooling air passage inside the hollow structure 61 for an air conditioner has a substantially quadrangular pyramid shape with the attachment portion of the ventilation pipe 42 as the apex (when the lower surface 62 is a square, the lower surface 62). If is circular, it becomes a substantially conical shape.) As for the heating air passage, if the shape of the floor plate 31 is square, it is a section of a substantially square pillar having a thin thickness, and the maximum size is approximately equal to the floor space 50.

The sizes of these cooling air passages and heating air passages also differ depending on the air volume of the indoor unit 4 for the air conditioner, the diameter of the ventilation pipe 42, and the internal structure of the hollow structure 61 for the air conditioner. However, in the case of cold air, the air volume of the indoor unit 4 for the air conditioner is adjusted so as not to exceed the side plate to which the lower surface outlet 63 is attached, and in the case of warm air, warm air is emitted from the lower surface outlet 63. Adjust to no air volume.

In FIG. 3, when the indoor unit 4 for an air conditioner generates cold air, the cold air is sent from the ventilation pipe attachment port 47 to the floor space 30 through a plurality of ceiling outlets 33 via the ventilation pipe 48, and is upstairs. The case where the space 30 is cooled is also shown at the same time. A damper may be provided at the ventilation pipe mounting port 47 of the indoor unit 4 for the air conditioner to prevent cold air from flowing to the ventilation pipe mounting port 47. The ceiling plate 32 of the upstairs space 30 is provided with the ventilation holes 36 because the indoor unit 4 for the air conditioner collects the air that has been cooled and heated and circulates the indoor air that has passed through the upstairs space 30. Because.

In FIG. 4, when warm air is generated by the indoor unit 4 for an air conditioner, it is sent from the ventilation pipe attachment port 45 to the underfloor space 10 via the ventilation pipe 46, and from the floor outlets 23 provided on the floor plate 21. The figure shows the case where warm air is blown to the downstairs space 20 to heat the downstairs space 20. A damper may be provided at the ventilation pipe mounting port 45 of the indoor unit 4 for the air conditioner to prevent warm air from flowing to the ventilation pipe mounting port 45.

FIG. 5 is a plan view as an example of the first floor of a detached house.
As shown in FIG. 5, in a detached house building, particularly the first floor, a living room 20a, a kitchen 20b, a washroom 20c, a bathroom 20d, and a toilet 20e are arranged. The living room 20a and the kitchen 20b are generally provided on the outer peripheral side of the building to which the windows and entrances are attached so that the functions of daylighting and outdoor access can be exhibited. Further, it is preferable to provide the kitchen 20b, the washroom 20c, the bathroom 20d, and the toilet 20e on the outer peripheral side of the building in consideration of humidity, piping equipment, and the like.

Then, the closet, the storeroom, the closet, the shelves, etc. are easily arranged in the center of the building. These closets, storerooms, closets, shelves, etc. do not fall under the category of living rooms (rooms that are continuously used for purposes such as living, working, and entertainment), so even if the ceiling height is lowered, There is no problem because it is not the purpose of living, working, entertainment, etc. mentioned above. Also in the arrangement of the first floor part of FIG. 5, the living room 20a, the kitchen 20b, the washroom 20c, the part surrounded by the broken line in the place other than the bathroom 20d and the toilet 20e, and the expansion space 60 of the hollow structure 61 for the air conditioner are arranged. ing. Therefore, since the portion surrounded by the broken line becomes the expansion space 60, the ceiling portion is lowered.

The expansion space 60 of the hollow structure 61 for an air conditioner, which is a portion surrounded by a broken line in FIG. 5, is provided with lower surface outlets 63 and 63a shown by a small broken line square. Regarding the difference between the bottom air outlet 63 and the bottom air outlet 63a, the bottom air outlet 63a has the opening area of the air outlet substantially half that of the bottom air outlet 63. This is because the opening area is adjusted according to the size of the living room in the blowing direction. Further, the ventilation pipe 42 from the indoor unit 4 for the air conditioner is connected vertically above the part indicated by the circle in the expansion space 60 of the hollow structure 61 for the air conditioner. The connection position of the ventilation pipe 42 is preferably the central portion of the expansion space 60, but by making the thickness (depth) of the expansion space 60 thicker (deeper), the expansion space 60 in the portion surrounded by the broken line is formed. If it is within the range, it can be handled.

In addition, although it is said that the living room under the Building Standards Law does not include "toilet", "washroom" and "bathroom", from the viewpoint of whether it is possible to lower the ceiling, "toilet", "Toilet" and "bathroom" are explained as being equivalent to living rooms.

(Second embodiment)
The hollow structure 66 for an air conditioner according to the second embodiment of the present invention will be described with reference to FIGS. 6 and 7. As described in the plan view of the building of FIG. 5, depending on the arrangement of the living room in the downstairs space 20 and the installation position of the indoor unit 4 for the air conditioner, the hollow structure 66 for the air conditioner in the upper part near the center of the expansion space 60 may be used. The ventilation pipe 42 may not be connected. In the second embodiment, since the expansion space 60 is located at the position of the expansion space 60a, the connection position of the ventilation pipe 42 with respect to the expansion space 60a is located above the expansion space 60a, but the range of the expansion space 60a. This is an embodiment in which the upper part close to the outer periphery of the space, in other words, the center of the expansion space 60a is deviated from the center.

As a diagram for explaining the second embodiment, FIGS. 6 and 7 which are the diagrams corresponding to FIGS. 3 and 4 of the first embodiment will be described. With respect to FIGS. 6 and 7 of the second embodiment, the position of the extended space 60a in the floor space 50 is moved to the left toward FIG. 6 and FIG. 7, and the position of the ventilation pipe 42 in the building 1 is changed. I haven't changed it. In the second embodiment, the only difference from the first embodiment is the position of the extended space 60a in the above-mentioned floor space 50, and the other parts are the same as those in the first embodiment, so the same reference numerals are used. The explanation will be omitted.

In the future embodiment, the flow of cold air from the ventilation pipe mounting port 47 and the flow of warm air from the ventilation pipe mounting port 45 are the same as those in the first embodiment, and thus the white arrows ( (Cold air) and black-filled arrows (warm air) are not shown. Further, in order to facilitate the explanation of this biased floor space, the wider floor space on the right side of FIGS. 6 and 7 is designated as the floor space 50a and has another reference numeral.

In the structure of the hollow structure 66 for an air conditioner, when the cold air generated by the indoor unit 4 for the air conditioner is sent to the hollow structure 66 for the air conditioner by the ventilation pipe 42, the ventilation connected to the hollow structure 66 for the air conditioner is connected. It is blown out from the opening of the pipe 42 into the hollow structure 66 for an air conditioner (inter-floor spaces 50a and 50b) while expanding in a substantially conical shape. The density of the cold air gas with respect to the air inside the hollow structure 66 for the air conditioner becomes large because it is cooled by the indoor unit 4 for the air conditioner. Therefore, the mass per unit volume of the cold air becomes heavier than the air inside the hollow structure 66 for the air conditioner. Then, the cold air sinks into the air inside the air conditioner hollow structure 66 without being hindered by the air in the blowing direction, and pushes the air inside the air conditioner hollow structure 66 to the lower surface outlet 63.

Of the cold air that spreads and descends, the part that collides with the floor space 50a spreads to the right along the lower surface 62 of the floor space 50a, but most of the cold air descends to the lower surface 62 of the expansion space 60a. When the cold air collides with the lower surface 62, the cold air spreads along the lower surface 62 and flows from the lower surface outlet 63 other than the side plate to which the lower surface outlet 63 raised around the lower surface 62 is attached to the downstairs space 20. .. Then, even for the cold air that has spread to the floor space 50a, flowing to the right in the floor space 50a is hindered by the air having a temperature higher than that of the cold air, and is dragged by the cold air flowing toward the lower surface outlet 63. Flows toward the bottom air outlet 63. The above flow of cold air becomes a cooling air passage and is formed inside the hollow structure 66 for an air conditioner.

Next, when the warm air generated by the indoor unit 4 for the air conditioner is sent to the hollow structure 66 for the air conditioner by the ventilation pipe 42, the hot air gas is sent to the air inside the hollow structure 66 for the air conditioner. Since the density becomes smaller, the mass per unit volume of the warm air becomes lighter with respect to the air inside the hollow structure 66 for the air conditioner. Therefore, the warm air spreads to the surroundings so as to ride on the air inside the hollow structure 66 for the air conditioner. Then, the warm 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 forming the air conditioner hollow structure 66 and the inner surface of the floor space side plate 65. Then, the warm air flows from the plurality of upper surface outlets 64 provided on the floor plate 31 to the floor space 30.

In the case of warm air as well, there is a part that collides with the interfloor space 50a, but it is obstructed by air whose temperature is lower than that of the warm air in the extended space 60a, and is dragged by the flow of warm air in the direction of the upper air outlet 64. Flow to. The above flow of warm air is formed inside the hollow structure 66 for an air conditioner as a heating air passage.

The above flow of cold air and hot air is illustrated as a cooling air passage and a hot air passage with a one-dot chain line. Since the description of the other parts of the cooling air passage and the heating air passage is the same as that of the first embodiment, the description thereof will be omitted.

(Third embodiment)
A hollow structure 67 for an air conditioner according to a third embodiment of the present invention will be described with reference to FIG. The difference between the hollow structure 67 for an air conditioner and the hollow structure 61 for an air conditioner according to the first embodiment is that a guide plate 68 is provided inside the hollow structure 67 for an air conditioner. Since the part of 1 is the same as that of the first embodiment, the same reference numerals are given and the description thereof will be omitted. Further, in FIG. 8, since the structure of the hollow structure 67 for an air conditioner is described as being substantially line-symmetrical, the cross-sectional view of the ventilation pipe 42 of FIG. The state in which the cooled air is being sent is illustrated, and the state in which the heated air is being sent is illustrated on the right side.

The guide plate 68 is installed inside the hollow structure 67 for the air conditioner at a predetermined distance from the opening below the opening of the ventilation pipe 42 connected to the hollow structure 67 for the air conditioner. be. Below the opening of the ventilation pipe 42 of the guide plate 68, a hole having a diameter 1 to 3 times the diameter of the opening of the ventilation pipe 42 is opened, and the circumference of the hole rises at an angle of 5 to 30 degrees. The outer circumference thereof is formed in a substantially funnel shape without exceeding the range of the expansion space 60.

By providing the guide plate 68, in the case of cold air, cold air can be collected in the central portion of the expansion space 60, and in the case of warm air, it becomes possible to block the warm air toward the expansion space 60. 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, so that the volume overhanging the downstairs space 20 can be reduced, so that the downstairs can be reduced. The space 20 can be effectively used.

Regarding the cooling air passage, the flow of the cold air to the guide plate 68 is substantially the same as that of 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 is divided into left and right toward the lower surface outlet 63.

Further, regarding the heating air passage, the flow of the warm air to the guide plate 68 is almost the same as that of the first embodiment, and when the hot air collides with the guide plate 68, the warm air flows from the descending direction to the ascending direction. The warm air, which becomes easy to change, changes from the descending direction to the ascending direction, and changes from the ascending direction to the horizontal direction, spreads in the direction of the interfloor space 50 on the outer periphery of the hollow structure 67 for the air conditioner and heads toward the upper surface outlet 64. ..

The shape of the guide plate 68 can be changed to any other shape depending on the shape of the hollow structure 67 for the air conditioner. For the purpose, other shapes may be used as long as the volume of the expansion space 60 can be reduced. For example, a method of controlling the wind speed and direction of cold air and hot air using a mesh plate or a plate with multiple holes, and a method of providing multiple blades (rectifying plate) to change the wind direction of cold air and hot air. How to do it.

The above flow of cold air and hot air is illustrated as a cooling air passage and a hot air air passage with a one-dot chain line. Since the description of the other parts of the cooling air passage and the heating air passage is the same as that of the first embodiment, the description thereof will be omitted.

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

The enclosure 71 extends a predetermined range from the opening below the opening of the ventilation pipe 42 connected to the hollow structure 69 for the air conditioner, and the hollow structure 69 for the air conditioner is formed in a wall shape at the boundary of the range. It is raised from the ceiling plate 22 which is the lower surface, and is installed at a predetermined interval from the floor plate 31 which is the upper surface of the hollow structure 69 for the air conditioner. Regarding the range of the enclosure 71, the range in which the cold air or the hot air spreads from the opening of the ventilation pipe 42 is taken into consideration, and in particular, the range in which the cold air collides with the ceiling plate 22 at a predetermined angle has a slight margin. Install in. Therefore, it is determined in consideration of the distance from the ceiling plate 22 to the floor plate 31 of the hollow structure 69 for the air conditioner and the wind speed of cold air or hot air. Further, in the enclosure 71 of the present embodiment, a guide plate 72 is attached to the upper end thereof so as to face the direction of the opening of the ventilation pipe 42 and to descend diagonally by 0 to 30 degrees in the direction of the direction. This is to adjust the wind direction of cold air and hot air as in the third embodiment. Further, a plurality of lower surface outlets 63a are arranged at appropriate locations inside the enclosure 71 and in the vicinity of the enclosure 71. Since the upper surface outlet 64 is the same as that of the first embodiment, the description thereof will be omitted.

By providing the enclosure 71, the same effect as that of the extended space 60 of the first embodiment can be obtained. Since there is no expansion 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 floor space 50 of the hollow structure 69 for the air conditioner is short, or when the wind speed of cold air or hot air is increased, the guidance of the third embodiment is further provided. It is carried out by combining the plates 68 and by installing a wind direction guide plate that changes depending on the difference in temperature between the cooled air and the heated air, which will be described later.

As for the cooling air passage, the flow of the cold air to the enclosure 71 is substantially the same as that of the first embodiment, and the cold air falling into the inside of the enclosure 71 spreads to the inside range of the enclosure 71. Then, the cold air inside the enclosure 71 is divided into left and right and heads toward the lower surface outlet 63a.

Further, regarding the heating air passage, the flow of the warm air to the enclosure 71 is almost the same as that of the first embodiment, and the warm air changes from the descending direction to the ascending direction along the guide plate 72 of the enclosure 71. The warm air that descends becomes easier and spreads in the direction of the floor space 50 on the outer periphery of the hollow structure 69 for the air conditioner, and heads toward the upper air outlet 64.

The above flow of cold air and hot air is illustrated as a cooling air passage and a hot air passage with a one-dot chain line. Since the description of the other parts of the cooling air passage and the heating air passage is the same as that of the first embodiment, the description thereof will be omitted.

(Fifth Embodiment)
The hollow structure 73 for an air conditioner according to a fifth embodiment of the present invention will be described with reference to FIGS. 10 and 11. The difference between the hollow structure 73 for an air conditioner and the hollow structure 69 for an air conditioner according to a fourth embodiment in which the hollow structure 61 for an air conditioner of the first embodiment is partially modified is the hollow structure for an air conditioner. The enclosure 71 to which the guide plate 72 provided on the body 69 is attached is used as the enclosure 74 in which the size of the upper guide plate is increased and the area of the opening is reduced, and the wind direction guide plate 75 is provided in the opening of the enclosure 74. Is provided, and the other parts are the same as those in the first embodiment and the fourth embodiment, so the same reference numerals are given and the description thereof will be omitted. A plurality of lower surface outlets 63a are arranged at appropriate locations inside the enclosure 74 and in the vicinity of the enclosure 74. Further, since the upper surface outlet 64 is the same as that of the first embodiment, the description thereof will be omitted.

The wind direction guide plate 75 is enclosed below the opening of the ventilation pipe 42 connected to the hollow structure 73 for the air conditioner, and inside the hollow structure 73 for the air conditioner at a predetermined distance from the opening. It is installed in the opening on the upper surface side of. The wind direction guide plate 75 has a diameter 1 to 3 times the diameter of the opening of the ventilation pipe 42, and is substantially the same size as or slightly smaller than the upper surface opening of the enclosure 74. Further, the enclosure 74 is formed in a structure other than the fourth embodiment and the size of the opening on the upper surface described above. The wind direction guide plate 75 is horizontally supported, and when the temperature of the cooled air, for example, air is 14 to 10 degrees Celsius or less, the shape is deformed and the temperature of the air is 16 to 20 degrees Celsius. It returns to the original shape. A drive member made of a so-called shape memory alloy is attached. By this driving member, the wind direction guide plate 75 moves vertically when hit by cold air and horizontally when hit by warm air, and closes the opening of the enclosure 74.

Since the hollow structure 73 for the air conditioner is provided with the enclosure 74 provided with the wind direction guide plate 75, cold air can be collected inside the enclosure 74 as shown in FIG. 10, and in the case of warm air, the figure is shown. Like 11, it can be flushed to the outside of the enclosure 74. Therefore, by providing the enclosure 74 provided with the wind direction guide plate 75 in the hollow structure 73 for the air conditioner, the air passages of the cold air and the hot air can be surely separated, and the expansion space 60 can be eliminated. , The downstairs space 20 can be effectively used.

Regarding the cooling air passage in FIG. 10, the flow of the cold air to the wind direction guide plate 75 is almost the same as that of the fourth embodiment, and the cold air falling in the enclosure 74 provided with the wind 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 floor space 50, and is divided into left and right toward the lower surface outlet 63a.

Regarding the heated air passage in FIG. 11, the flow of warm air to the wind direction guide plate 75 is almost the same as that of the fourth embodiment, and when the warm air collides with the enclosure 74 closed by the wind direction guide plate 75, , The warm air changes from the descending direction to the ascending direction, and the warm air changing from the ascending direction to the horizontal direction spreads in the direction of the floor space 50 on the outer periphery of the hollow structure 73 for the air conditioner and heads toward the upper surface outlet 64. ..

The above flow of cold air and hot air is illustrated as a cooling air passage and a hot air passage with a one-dot chain line. Since the description of the other parts of the cooling air passage and the heating air passage is the same as that of the first embodiment and the fourth embodiment, the description thereof will be omitted.

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

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 is formed in a wall shape at the boundary of the range. It is raised from the ceiling plate 22 which is the lower surface, and is installed at a predetermined interval from the floor plate 31 which is the upper surface of the hollow structure 77 for an air conditioner. Regarding the range of the enclosure 78, the range in which the cold air or the hot air spreads from the opening of the ventilation pipe 42 is taken into consideration, and in particular, the range in which the cold air collides with the ceiling plate 22 at a predetermined angle has a slight margin. Install in. Therefore, it is determined in consideration of the distance from the ceiling plate 22 to the floor plate 31 of the hollow structure 77 for the air conditioner and the wind speed of cold air or hot air. Further, in the enclosure 78 of the present embodiment, the guide plate is not attached to the upper end, but it may be attached. A plurality of lower surface outlets 63a are arranged at appropriate locations inside the enclosure 78 and in the vicinity of the enclosure 78. Since the upper surface outlet 64 is the same as that of the first embodiment, the description thereof will be omitted.

The wind direction guide plate 79 is enclosed below the opening of the ventilation pipe 42 connected to the hollow structure 77 for the air conditioner, and inside the hollow structure 77 for the air conditioner at a predetermined distance from the opening. It was installed so as to close a part of the opening on the upper surface side of the. The wind direction guide plate 79 has a diameter 4 to 5 times larger than the diameter of the opening of the ventilation pipe 42. Further, unlike the fourth embodiment, the enclosure 78 is formed in a size just raised in a fence shape. The wind direction guide plate 79 is horizontally divided into two parts and is pivotally supported in the shape of a butterfly blade. When the temperature of the cooled air, for example, air becomes 14 to 10 degrees Celsius or less, the shape is deformed and the shape of the air is changed. When the temperature reaches 16 to 20 degrees Celsius, it returns to its original shape. A drive 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 diagonally downward when it is hit by cold air, and moves diagonally upward when it is hit by warm air, and changes the direction of the wind.

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

Regarding the cooling air passage, the flow of the cold air up to the enclosure 78 is almost the same as that of the first embodiment, so that it enters the inside of the enclosure 78 and extends to the inside range of the enclosure 78 while following the wind direction guide plate 79. Flow to. Then, the cold air inside the enclosure 78 is divided into left and right and heads toward the lower surface outlet 63a.

Further, with respect to the heated air passage, the wind direction guide plate 79 makes it easier for the warm air to change from the descending direction to the ascending direction than in the first embodiment, and is along the floor plate 31 of the hollow structure 77 for the air conditioner. It flows. Then, the warm air flowing in the horizontal direction spreads in the direction of the floor space 50 on the outer periphery of the hollow structure 77 for the air conditioner, and heads toward the upper air outlet 64.

The above flow of cold air and hot air is illustrated as a cooling air passage and a hot air passage with a one-dot chain line. Since the description of the other parts of the cooling air passage and the heating air passage is the same as that of the first embodiment and the fourth embodiment, the description thereof will be omitted.

(7th Embodiment)
The hollow structure 81 for an air conditioner of the present invention will be described with reference to FIGS. 13 and 14. 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 a stairwell 27 between the downstairs space 20 and the upstairs space 30. Therefore, the inter-floor space on the side where the atrium 27 is provided is narrowed to become the inter-floor space 50c. Further, as for the expansion space, the downward expansion on the side where the atrium 27 is provided becomes the expansion space 60b having a shape that narrows diagonally downward, and the lower surface outlet is also attached to the lower surface that narrows diagonally downward. It is an outlet 63b. A wall 82 is provided at the boundary of the extended space 60b only on the side in contact with the floor space 50. Since the other parts are the same as those in the first embodiment, the same reference numerals are given and the description thereof will be omitted.

The wall 82 is provided at the boundary between the expansion space 60b and the floor space 50c, and has a shape that collapses toward the expansion space 60b (directs diagonally upward from the 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 hollow structure 81 for an air conditioner. Further, at the upper end of the wall 82, a guide plate 83 having a shape that collapses toward the expansion space 60b (directs diagonally downward from the upper end of the wall 82 toward the expansion space 60b) is provided. The expansion space 60b is below the opening of the ventilation pipe 42 connected to the hollow structure 81 for the air conditioner, and is extended to a predetermined range from the opening. The wall 82 to which the guide plate 83 provided at the boundary between the expansion space 60b and the floor space 50c is also provided outside the opening of the ventilation pipe 42 by a predetermined distance.

By providing the wall 82, it is possible to easily collect the cold air in the expansion space 60b in the case of cold air and to block the cold air from the expansion space 60b to the floor space 50c, and in the case of warm air, the floor space. It is possible to easily collect warm air in the space 50c and to block the warm air toward the extended space 60b. Therefore, even if the floor space 50c becomes smaller when the atrium 27 is provided by providing the wall 82, the cold air and the hot air generated by the different shapes of the floor space 50 and the floor space 50c are generated. It is possible to balance the flow of.

Explaining the flow of cold air with reference to FIG. 13, regarding the cooling air passage which is the flow of cold air, the flow of cold air to the wall 82 on the side without the wall 82 and the side with the wall is the first embodiment. Is almost the same as. The cold air that collides with the guide plate 83 provided at the upper end of the wall 82 on the side with the wall is sucked by the cold air flowing in the direction of the lower surface outlet 63b, does not flow to the floor space 50c side, and gathers and descends. The cold air directly toward the lower surface outlet 63 and the lower surface outlet 63b collides with the lower surface 62 of the expansion space 60b, and the cold air splits left and right toward the lower surface outlet 63 and flows into the downstairs space 20.

Explaining the flow of warm air with reference to FIG. 14, regarding the heated air passage which is the flow of warm air, the flow of warm air to the wall 82 on the side without the wall 82 and the side with the wall is the first. It is almost 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 side with the wall, the warm air is more likely to change from the falling direction to the rising direction, and the warm air flowing horizontally after rising is an air conditioner. It expands in the direction of the floor space 50c on the outer periphery of the hollow structure 81 and faces the upper air outlet 64.

The shape of the wall 82 may be other than this depending on the shape of the hollow structure 81 for the air conditioner. The purpose is to adjust the balance with other floor spaces 50 due to the reduction of the floor space 50c and the relationship between the 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, 79 of the fifth or sixth embodiment may be used.

The above flow of cold air and hot air is illustrated as a cooling air passage and a hot air passage with a one-dot chain line. Since the description of the other parts of the cooling air passage and the heating air passage is the same as that of the first embodiment, the description thereof will be 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: Washbasin Place, 20d: Bathroom,
20e: Toilet 21, 31: Floor plate 22, 32: Ceiling plate 23: Floor outlet 26: Ventilation passage 27: Atrium 30: Upstairs space 33: Ceiling outlet 36: Vent hole 40: Ceiling space 41, 45, 47 : Ventilation pipe attachment ports 42, 46, 48: Ventilation pipes 50, 50a, 50b, 50c: Floor space 51: Floor beam 52: Joist 53: Suspended tree 54: Base bone 60, 60a, 60b: Expansion space 61, 66 67, 69, 73, 77, 81: Hollow structure for air conditioner 62: Bottom surface 63, 63a, 63b: Bottom surface outlet 64: Top surface outlet 65: Floor space side plate 68, 72, 83: Guide plate 71, 74, 78: Enclosure 75, 79: Wind direction guide plate 82: Wall

Claims (4)

In a building that has a room downstairs and a room upstairs and has a space between the room downstairs and the room upstairs.
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 the air cooled to the air in the building or the air heated to the air in the building is sent.
The hollow structure has a structure in which different cooling air passages and heating air passages are formed between the cooled air and the heated air due to the difference in the properties of the cooled air and the heated air. death,
An outlet at the end of the hollow structure of the cooling air passage is provided in the living room downstairs.
An outlet at the end of the hollow structure of the heated air passage is provided in the living room on the floor.
A structure in which a cooling air passage and a heating air passage, which are different between the cooled air and the heated air provided in the hollow structure, are formed by the difference in the properties of the cooled air and the heated air. but,
The space is expanded downward between the room below the floor and the room above the floor, which extends downward from the location where the ventilation pipe is connected to the hollow structure, and the cooling is performed at the location where the ventilation pipe extends downward. It is a structure provided with the outlet at the end of the hollow structure of the air passage.
A hollow structure for air conditioners, which is characterized by this. In a building that has a room downstairs and a room upstairs and has a space between the room downstairs and the room upstairs.
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 the air cooled to the air in the building or the air heated to the air in the building is sent.
The hollow structure has a structure in which different cooling air passages and heating air passages are formed between the cooled air and the heated air due to the difference in the properties of the cooled air and the heated air. death,
An outlet at the end of the hollow structure of the cooling air passage is provided in the living room downstairs.
An outlet at the end of the hollow structure of the heated air passage is provided in the living room on the floor.
A structure in which a cooling air passage and a heating air passage, which are different between the cooled air and the heated air provided in the hollow structure, are formed by the difference in the properties of the cooled air and the heated air. but,
A space is provided between the room below the floor and the room above the floor, which extends downward from the place where the ventilation pipe is connected to the hollow structure, and the inside of the place where the fence is provided is described. It is a structure provided with the outlet at the end of the hollow structure of the cooling air passage.
A hollow structure for air conditioners, which is characterized by this. A wind direction guide plate that changes depending on the temperature difference between the cooled air and the heated air is provided.
The hollow structure for an air conditioner according to claim 1 or 2, characterized in that. The ventilation pipe to which either the air cooled to the air in the building or the air heated to the air in the building is sent is a single pipe to the upper surface side of the hollow structure. It is connected
The hollow structure for an air conditioner according to any one of claims 1 to 3, wherein the hollow structure is characterized by the above .

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