JP7615285B2 - Air conditioning system and air conditioning method - Google Patents

Description

The present invention relates to an air conditioning system.

Conventionally, in an air conditioning system equipped with an air conditioner having both heating and cooling functions, a single air conditioner is used to heat the first and second floors of a detached house using the heating function, or to cool the first and second floors using the cooling function (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 11-325569

When one air conditioner is used to heat the first and second floors of a detached house in winter, the temperature at the feet on the first floor does not rise easily, and the heating function may not be effective. Also, when one air conditioner is used to cool the first and second floors of a detached house in summer, the temperature on the second floor does not fall easily, and the cooling function may not be effective.
On the other hand, if the heating or cooling capacity of the air conditioning unit is increased to increase the air volume in order to effectively air-condition the first and second floors of a house, this requires expensive and complex control, which in turn leads to a larger air conditioning unit and a more costly system.
Therefore, there is a demand for a simple structure that can adjust the temperature throughout the house to a uniform temperature.

The present invention aims to provide an air conditioning system that is simple in configuration and can adjust the temperature throughout a home to a uniform temperature.

The present invention relates to an air conditioning system (e.g., air conditioning system 1 described below) equipped with an air conditioner (e.g., air conditioner 2 described below) that heats the air in a house (e.g., house 10 described below) using a heating function or cools it using a cooling function, and supplies the air to the house, the air being introduced through a first air intake (e.g., first floor circulation fan intake 46 described below) or a second air intake (e.g., second floor circulation fan intake 55 described below). When the heating function is performed, the first air intake is located near the bottom of the insulated section in the house, or near the finishing section located at the bottom of the living space or non-living space, and when the cooling function is performed, the second air intake is located near the top of the insulated section in the house, or near the finishing section located at the top of the living space or non-living space.

In addition, when the heating function is operated, the first air intake is preferably located near the bottom of the lowest floor or near the bottom of each floor if the house is multi-story, or near the bottom if the house is a single-story, and the second air intake is preferably located near the top of the top floor or near the top of each floor if the house is multi-story, or near the top if the house is a single-story, when the cooling function is operated.

It is also preferable that the first air intake is disposed under the floor (e.g., underfloor space 114 described below) and the second air intake is disposed in the attic (e.g., attic space 125 described below).

It is also preferable that the air conditioner has both the heating function and the cooling function and is equipped with a switching unit (e.g., switching unit 8 described below) that can switch the air introduced into the air conditioner to be introduced through either the first air intake or the second air intake.

It is also preferable that the house further includes a ventilation device (e.g., ventilation device 3 described below) that introduces outside air into the house and exhausts air inside the house to the outside, the ventilation device introducing outside air into the air conditioning device, and the air conditioning device warms the outside air introduced by the ventilation device using a heating function or cools it using a cooling function and supplies it to the house.

The present invention also relates to an air conditioning system that includes an air conditioner that heats the air in a house that is introduced through a first air intake or a second air intake using a heating function or cools the air using a cooling function and supplies the air to the house, and when the heating function is functioning, the first air intake is located near the northernmost part of the house, and when the cooling function is functioning, the second air intake is located near the southernmost part of the house.

In addition, the air conditioning maintenance structure for performing maintenance of the air conditioning system (e.g., the air conditioning maintenance structure 9, the first floor air conditioning maintenance structure 91, and the second floor air conditioning maintenance structure 92 described later) is further provided, and the air conditioning maintenance structure includes an intake airtight space (e.g., the first floor intake airtight space 911 and the second floor intake airtight space 921 described later) that is provided in a space where a duct can be arranged (e.g., the first floor piping space 131 and the second floor piping space 133 described later) and has airtightness, and a maintenance duct that is connected to the intake airtight space with one side open in the intake airtight space and is directly or indirectly connected to the air conditioning device on the other side. It is preferable that the maintenance duct includes a duct (e.g., the first floor side circulation intake duct L31 and the second floor side circulation intake duct L32 described below), an intake port arranged to communicate the intake airtight space with the space inside the house, a filter (e.g., the first floor side filter 912 and the second floor side filter 922 described below) arranged inside the intake airtight space to cover the opening on the end side of the maintenance duct on the intake airtight space side, and a maintenance door (e.g., the first floor side maintenance door 913 and the second floor side maintenance door 923 described below) that is configured to be able to open and close the intake airtight space and is arranged in a position where maintenance of the filter can be performed.

The present invention provides an air conditioning system that can adjust the temperature throughout a home to a uniform temperature with a simple configuration.

FIG. 2 is a diagram showing a state during heating in a house equipped with the air conditioning system according to the first embodiment of the present invention. 1 is a diagram showing a state during cooling in a house equipped with an air conditioning system according to a first embodiment of the present invention. FIG. 11A and 11B are diagrams showing states during heating and cooling in a house equipped with an air conditioning system according to a second embodiment of the present invention. 13A and 13B are diagrams showing states during heating and cooling in a house equipped with an air conditioning system according to a third embodiment of the present invention. 13A and 13B are diagrams showing states during heating and cooling in a house equipped with an air conditioning system according to a fourth embodiment of the present invention. 13A and 13B are diagrams showing states during heating and cooling in a house equipped with an air conditioning system according to a fifth embodiment of the present invention. FIG. 13 is a diagram showing a house equipped with an air conditioning system according to a sixth embodiment of the present invention, in which an air conditioner, a ventilator, and a switching unit are integrated into an air conditioning unit.

First Embodiment
Hereinafter, a first embodiment of an air conditioning system 1 of the present invention will be described with reference to the drawings. Fig. 1 is a diagram showing a state during heating in a house 10 equipped with an air conditioning system 1 according to the first embodiment of the present invention. Fig. 2 is a diagram showing a state during cooling in a house 10 equipped with an air conditioning system 1 according to the first embodiment of the present invention.

As shown in Figures 1 and 2, the air conditioning system 1 of the first embodiment is used in, for example, a two-story house 10. The house 10 is constructed with a highly airtight and highly insulated structure. The air conditioning system 1 can be used in a highly airtight and highly insulated house 10, thereby saving energy. Note that, in this embodiment, the air conditioning system 1 is used in a two-story house 10, but is not limited to this. The air conditioning system may also be used in a house with three or more stories, for example.

As shown in Figs. 1 and 2, the house 10 is, for example, a two-story structure having a roof 13 and an exterior wall 14. The house 10 is configured such that insulation material for basic insulation is arranged under the roof 13 and inside the exterior wall 14, and the house 10 is configured to have basic insulation throughout. The insulated section 18 of the house 10 includes a roof side insulation line 181 and an exterior wall side insulation line 182. The roof side insulation line 181 is composed of insulation material arranged on the underside of the roof 13 at an angle along the inclination direction of the roof 13. The exterior wall side insulation line 182 is composed of insulation material arranged on the inside of the exterior wall 14 and extending in the vertical direction from the roof 13 to the ground 101. The house 10 is insulated inside the insulation section 18.

For example, on the first floor, the house 10 has a first floor bathroom space 111, a first floor corridor space 112, a first floor living space 113, and an underfloor space 114, and on the second floor, it has a second floor storage space 121, a second floor first living space 122, a second floor corridor space 123, a second floor second living space 124, and an attic space 125.

On the first floor, the first floor bathroom space 111, the first floor corridor space 112, and the first floor living space 113 are arranged in this order from one side to the other in the left-right direction (from left to right in Figures 1 and 2). Each space 111, 112, 113 is formed by being surrounded by a floor, walls, and ceiling. On the first floor, the underfloor space 114 is provided below the floor 16 of each space 111, 112, 113. The underfloor space 114 is located inside the exterior wall insulation line 182 of the house 10 and is insulated.

On the first floor, a first floor piping space 131 is provided between the other side wall surface 111a of the first floor bathroom space 111 and one side wall surface 112a of the first floor corridor space 112.
In addition, between the first and second floors, between the ceilings of each space 111, 112, 113 on the first floor and the floors 17 of each space 121, 122, 123, 124 on the second floor, an upper piping space 132 on the first floor is provided.

The first floor wet area space 111 and the first floor corridor space 112 are connected at the bottom by a communication passage 115. Since the air in the first floor wet area space 111 is exhausted outside the house 10 via the first floor wet area fan exhaust port 41 (described later), the air below the first floor corridor space 112 flows through the communication passage 115 toward the first floor wet area space 111.
The first floor corridor space 112 and the first floor living space 113 are connected at the bottom by a communication passage 116. Since the air in the first floor corridor space 112 is exhausted outside the house 10 via the first floor corridor exhaust fan exhaust port 42 (described later), the air below the first floor living space 113 flows through the communication passage 116 toward the first floor corridor space 112.

On the second floor, the second floor storage space 121, the second floor first living space 122, the second floor corridor space 123, and the second floor second living space 124 are arranged in this order from one side to the other side in the left-right direction (from left to right in Figures 1 and 2). Each space 121, 122, 123, and 124 is formed by being surrounded by a floor, a wall, and a ceiling. On the second floor, the attic space 125 is arranged between the roof ceiling 15 and the roof 13. The roof ceiling 15 constitutes the ceiling of the second floor upper side piping space 134 provided above the ceilings of the second floor storage space 121, the second floor first living space 122, the second floor corridor space 123, and the second floor second living space 124. The attic space 125 is located below the roof side insulation line 181 on the roof 13 side of the house 10 and is insulated. The attic space 125 may also be called an attic or a ceiling. Additionally, the attic space 125 may be configured as a living space for people to live in.

On the second floor, a second floor piping space 133 is provided between the other side wall surface 121a of the second floor storage space 121 and one side wall surface 122a of the second floor first living space 122.
In addition, a second floor upper piping space 134 is provided between the ceilings of each space 121, 122, 123, 124 on the second floor and the roof ceiling 15.

The second floor storage space 121 and the second floor first living space 122 are connected at the bottom by a communication passage 126. Since the air in the second floor storage space 121 is exhausted to the outside of the house 10 via the second floor storage space exhaust fan exhaust port 51 (described later), the air below the second floor first living space 122 flows through the communication passage 126 toward the second floor storage space 121.
The second floor first living space 122 and the second floor corridor space 123 are connected at the bottom by a communication passage 127. Since the air in the second floor corridor space 123 is exhausted outside the house 10 via the second floor corridor exhaust fan exhaust port 53 (described later), the air below the second floor first living space 122 flows through the communication passage 127 toward the second floor corridor space 123.
The second floor corridor space 123 and the second floor second living space 124 are connected at the bottom by a communication passage 128. Since the air in the second floor corridor space 123 is exhausted to the outside of the house 10 via the second floor corridor exhaust fan exhaust port 53 (described later), the air below the second floor second living space 124 flows through the communication passage 128 toward the second floor corridor space 123.

In addition, in this embodiment, the floor 16 of the first floor of the house 10 constitutes the finished surface (finishing part) located at the bottom of the living space or non-living space on the first floor. The floor 17 of the second floor of the house 10 constitutes the finished surface (finishing part) located at the bottom of the living space or non-living space on the second floor. The roof ceiling 15 of the second floor of the house 10 constitutes the finished surface (finishing part) at the top of the non-living space on the second floor. In addition, the ceilings of each space 111, 112, 113, 121, 122, 123, 124 on each floor constitute the finished surface (finishing part) at the top of each space.

The air conditioning system 1 includes an air conditioner 2, a ventilation device 3, a fan exhaust vent 41 for the first floor wet space, an exhaust fan exhaust vent 42 for the first floor corridor, an air supply fan inlet 43 for the first living space on the first floor, an air supply fan inlet 44 for the second living space on the first floor, an exhaust fan exhaust vent 45 for the first living space on the first floor, a first floor circulation fan inlet 46 (first inlet), an exhaust fan exhaust vent 51 for the second storage space, and a second floor first living space. The system includes a space air supply fan inlet 52, a second floor corridor exhaust fan outlet 53, a second floor second living space air supply fan inlet 54, a second floor circulation fan inlet 55 (second intake port), a first air supply chamber 71, a second air supply chamber 72, a Y-shaped pipe 73, a first exhaust chamber 74, a second exhaust chamber 75, a switching unit 8, an air supply duct L1, an exhaust duct L2, and a circulation intake duct L3. The air supply duct L1, the exhaust duct L2, and the circulation intake duct L3 are pipes that form a circulation passage through which air flows, and are, for example, composed of ducts.

The air conditioner 2 comprises an air conditioner indoor unit 21 and an air conditioner outdoor unit 22. The air conditioner indoor unit 21 is disposed in the upper piping space 132 on the first floor between the first and second floors. The air conditioner outdoor unit 22 is connected to the air conditioner indoor unit 21 and is disposed, for example, on the ground 101 outside the exterior wall 14 of the house 10.

The air conditioning indoor unit 21 has a heating function for heating the inside of the house 10 and a cooling function for cooling the inside of the house 10. The air conditioning indoor unit 21 heats the air inside the house 10 introduced through the first floor circulation fan intake 46 or the second floor circulation fan intake 55, and cools the air outside the house 10 introduced by the ventilation device 3 (described later), using the heating function or cooling function, and supplies the air to the house 10. The air conditioning indoor unit 21 supplies air heated by the heating function or cooled by the cooling function to each space 113, 122, 124 through the supply air duct L1 via the first floor first living space supply fan intake 43, the first floor second living space supply fan intake 44, the second floor first living space supply fan intake 52, and the second floor second living space supply fan intake 54.

The first floor first living space supply fan air intake 43 is arranged on the upper side of one wall surface 113a of the first floor living space 113 on the first floor.
The first floor second living space supply fan air intake 44 is located near the left-right center of the indoor ceiling 113b of the first floor living space 113 on the first floor.
The second floor first living space supply fan air intake 52 is arranged on the upper side of the other side wall surface 122b of the second floor first living space 122 on the second floor.
The second floor second living space supply fan air intake 54 is located on the upper side of one side wall surface 124a of the second floor second living space 124 on the second floor.

The supply air duct L1 is a pipe for introducing air from outside the house 10 into the ventilation device 3 (described later), introducing the air introduced into the ventilation device 3 into the air conditioning device 2, and supplying air heated by the heating function of the air conditioning device 2 or cooled by the cooling function of the air conditioning device 2 to the first floor living space 113, the second floor first living space 122, and the second floor second living space 124. The supply air duct L1 has a ventilation device introduction duct L11, an air conditioning device introduction duct L12, a first floor introduction duct L13, a first supply air duct L14, a second supply air duct L15, a second floor introduction duct L16, a third supply air duct L17, and a fourth supply air duct L18.

The ventilation device introduction duct L11 is a pipe that introduces air from outside the house 10 to the ventilation device 3.
The air conditioning device introduction duct L12 is a piping from the ventilation device 3 to the air conditioning indoor unit 21.
The first floor introduction duct L13 branches off at the air conditioning indoor unit 21 and is a pipe extending from the air conditioning indoor unit 21 to the first air supply chamber 71.
The first air supply duct L14 branches off at the first air supply chamber 71 and is a piping that runs from the first air supply chamber 71 to the air supply fan air supply port 43 for the first living space on the first floor.
The second air supply duct L15 branches off at the first air supply chamber 71 and is a piping that runs from the first air supply chamber 71 to the air supply fan intake port 44 for the first floor second living space.
The second floor introduction duct L16 branches off at the air conditioning indoor unit 21 and is a pipe extending from the air conditioning indoor unit 21 to the second air supply chamber 72.
The third supply air duct L17 branches off at the second supply air chamber 72 and is a piping that runs from the second supply air chamber 72 to the supply air fan air intake vent 52 for the first living space on the second floor.
The fourth air supply duct L18 branches off at the second air supply chamber 72 and is a piping that runs from the second air supply chamber 72 to the air supply fan intake vent 54 for the second living space on the second floor.

When the heating function is operated, for example in winter, cold air is introduced into the air conditioner 2 from near the bottom of the insulated section 18 in the house 10 via the first floor circulation fan intake 46. The first floor circulation fan intake 46 is connected to the air conditioner 2 by a circulation intake duct L3 (described below). In this embodiment, the first floor circulation fan intake 46 is positioned near the bottom of the insulated section 18 in the house 10.

Here, in this embodiment, the vicinity of the bottom of the insulated section 18 is preferably within a range of up to a position 1 m higher than the bottom of the insulated section 18, and more preferably within a range of up to a position 50 cm higher than the bottom of the insulated section 18. The vicinity of the bottom of the insulated section 18 in the house 10 is a place where, in the past, even if the heating function of the air conditioner 2 is operated in winter, the air in the house 10 is difficult to warm, and the air conditioner 2 is considered to be ineffective. For example, in general, when the heating function is operated in winter, if the temperature of the feet, etc. in the living space or non-living space is 3°C or more lower than the heating set temperature, the air conditioning is considered to be ineffective. In this embodiment, the vicinity of the bottom of the insulated section 18 is a place where the temperature is 3°C or more lower than the heating set temperature when the heating function is operated.

In this embodiment, the first floor circulation fan intake 46 is disposed below the first floor piping space 131, for example in the underfloor space 114. In this embodiment, the underfloor space 114 is the bottom of the bottom floor of the house 10, and is also the bottom of the insulated section 18.

When the cooling function is operated, for example, in the summer, warm air near the top of the insulated section 18 in the house 10 is introduced into the air conditioner 2 via the second floor circulation fan intake 55. The second floor circulation fan intake 55 is connected to the air conditioner 2 by a circulation intake duct L3 (described later). In this embodiment, the second floor circulation fan intake 55 is positioned near the top of the insulated section 18 in the house 10.

Here, in this embodiment, the vicinity of the top of the insulated section 18 is preferably within a range of up to 1 m below the top of the insulated section 18, and more preferably within a range of up to 50 cm below the top of the insulated section 18. The vicinity of the top of the insulated section 18 in the house 10 is a place where the air in the house 10 is difficult to cool and the air conditioner 2 is considered to be ineffective even when the cooling function is operated by the air conditioner 2 in the summer. For example, it is generally considered that the air conditioning is ineffective when the temperature near the ceiling of the living space or non-living space is 3°C or more higher than the cooling set temperature when the cooling function is operated in the summer. In this embodiment, the vicinity of the top of the insulated section 18 is a place where the temperature is 3°C or more higher than the cooling set temperature when the cooling function is operated.

In this embodiment, the second floor circulation fan intake 55 is located, for example, in the attic space 125. In this embodiment, the attic space 125 is the top of the top floor of the house 10, and is also the top of the insulated section 18.

The switching unit 8 is provided midway through the circulation intake duct L3. The switching unit 8 can switch the air inside the house 10 that is introduced into the air conditioner 2 between cold air introduced through the first floor circulation fan intake 46, or warm air introduced through the second floor circulation fan intake 55.

The switching unit 8 is configured to be selectively switchable between a first floor air suction state in which air sucked into the first floor circulation fan intake port 46 is introduced into the air conditioning indoor unit 21, and a second floor air suction state in which air sucked into the second floor circulation fan intake port 55 is introduced into the air conditioning indoor unit 21, midway through the circulation intake duct L3.

The circulation intake duct L3 is a pipe that circulates cold air near the bottom of the insulated section 18 or warm air near the top of the insulated section 18 to the air conditioning indoor unit 21. The circulation intake duct L3 has a first floor circulation intake duct L31, a second floor circulation intake duct L32, and a common circulation intake duct L33.

When the circulation intake duct L3 is switched to the first floor air suction state by the switching unit 8, it circulates the cold air near the top of the insulated section 18 to the air conditioning indoor unit 21 via the first floor circulation intake duct L31 and the common circulation intake duct L33. When the circulation intake duct L3 is switched to the second floor air suction state by the switching unit 8, it circulates the warm air near the top of the insulated section 18 to the air conditioning indoor unit 21 via the second floor circulation intake duct L32 and the common circulation intake duct L33.

The first floor circulation intake duct L31 is a piping from the first floor circulation fan intake port 46 to the switching unit 8, and circulates the air sucked in from the first floor circulation fan intake port 46 to the switching unit 8.
The second floor circulation intake duct L32 is a piping from the second floor circulation fan intake port 55 to the switching unit 8, and circulates the air sucked in from the second floor circulation fan intake port 55 to the switching unit 8.
The common circulation intake duct L33 is a piping having one end connected to the switching unit 8 and the other end connected to the air conditioning indoor unit 21, which circulates the air that has circulated through the first floor side circulation intake duct L31 or the second floor side circulation intake duct L32, as switched by the switching unit 8, to the air conditioning indoor unit 21.

For example, in winter, when the air conditioner 2 is performing a heating function, the switching unit 8 is switched to the first floor air suction state, and cold air from the underfloor space 114 is introduced into the air conditioner 2. Also, in summer, when the air conditioner 2 is performing a cooling function, the switching unit 8 is switched to the second floor air suction state, and warm air from the attic space 125 is introduced into the air conditioner 2.

The switching unit 8 may be configured, for example, to switch between the first floor air suction state and the second floor air suction state by manual operation, or may be configured to automatically switch between the first floor air suction state and the second floor air suction state in conjunction with the cooling or heating of the air conditioning unit 2.

In this embodiment, a common circulation intake duct L33 is provided in the circulation intake duct L3, but this is not limited to the above. The first floor circulation intake duct L31 and the second floor circulation intake duct L32 may be provided separately, each connected to the air conditioning indoor unit 21, and switched by a switching unit built into the air conditioning indoor unit 21.

The ventilation device 3 is placed in the upper piping space 132 on the first floor between the first and second floors. The ventilation device 3 ventilates the house 10 by introducing air from outside the house 10 into the air conditioning device 2, thereby introducing the air from outside the house 10 into the house 10 via the air conditioning device 2, and discharging the air from inside the house 10 to the outside of the house 10. The ventilation device 3 also has a heat exchange function, and performs ventilation 24 hours a day by performing supply and exhaust operations while exchanging heat between the supply air and exhaust air.

The ventilation device 3 exhausts the air of each of the specified spaces 111, 112, and 113 sucked in through the first floor water space fan exhaust port 41, the first floor corridor exhaust fan exhaust port 42, and the first floor first living space exhaust fan exhaust port 45 on the first floor to the outside of the house 10 through the exhaust duct L2, and exhausts the air of each of the specified spaces 121 and 123 sucked in through the second floor storage space exhaust fan exhaust port 51 and the second floor corridor exhaust fan exhaust port 53 to the outside of the house 10 on the second floor to the outside of the house 10. The ventilation device 3 introduces air from outside the house 10 into the air conditioner 2, thereby supplying air from outside the house 10 to the specified space 113 through the air intake ports 43 and 44 on the first floor through the air conditioner 2, and supplying air from outside the house 10 to the specified spaces 122 and 124 through the air intake ports 52 and 54 on the second floor.

The first floor wet space fan exhaust port 41 is arranged on the first floor in the indoor ceiling 111b of the first floor wet space 111.
The first floor corridor exhaust fan exhaust vent 42 is arranged in the indoor ceiling 112b of the first floor corridor space 112 on the first floor.
The exhaust fan exhaust port 45 for the first living space on the first floor is disposed on the other side of the indoor ceiling 113b of the first floor living space 113 on the first floor.

The second floor storage space exhaust fan exhaust port 51 is arranged on the second floor in the interior ceiling 121b of the second floor storage space 121.
The second floor corridor exhaust fan exhaust port 53 is arranged in the indoor ceiling 123a of the second floor corridor space 123 on the second floor.

The exhaust duct L2 is a pipe for discharging the air in the first floor wet area space 111, the first floor corridor space 112, the first floor living space 113, the second floor storage space 121, and the second floor corridor space 123 to the outside of the house 10. The exhaust duct L2 has a first floor wet area exhaust duct L21, a first floor corridor exhaust duct L22, a first floor living room exhaust duct L23, a first floor exhaust junction duct L24, a second floor storage space exhaust duct L25, a second floor corridor exhaust duct L26, a second floor exhaust junction duct L27, a total exhaust junction duct L28, and an exhaust discharge duct L29.

The first floor wet area exhaust duct L21 is a pipe extending from the first floor wet area fan exhaust port 41 to the first exhaust chamber 74.
The first floor corridor side exhaust duct L22 is a piping from the first floor corridor exhaust fan exhaust port 42 to the first exhaust chamber 74.
The first floor living room side exhaust duct L23 is a piping from the exhaust fan exhaust port 45 for the first living space on the first floor to the first exhaust chamber 74.
The first floor exhaust junction duct L24 is a piping from the first exhaust chamber 74 to the Y-pipe 73.
The second floor storage space side exhaust duct L25 is a piping from the second floor storage space exhaust fan exhaust port 51 to the second exhaust chamber 75.
The second floor corridor exhaust duct L26 is a piping from the second floor corridor exhaust fan exhaust port 53 to the second exhaust chamber 75.
The second floor exhaust junction duct L27 is a piping from the second exhaust chamber 75 to the Y-pipe 73.
The total exhaust junction duct L28 is a piping from the Y-shaped pipe 73 to the ventilation device 3.
The exhaust discharge duct L29 is a pipe that discharges the air discharged from the ventilation device 3 to the outside of the house 10.

The ventilation device 3 ventilates the house 10 24 hours a day, whether the air conditioner 2 is operating or not. When the air conditioner 2 is not operating, the air conditioner 2 does not perform cooling or heating, but ventilation is performed by the ventilation device 3 by introducing air that has passed through the inside of the air conditioner 2 into the house 10.

In this embodiment, as an example of the amount of air introduced into the air conditioning indoor unit 21 of the air conditioner 2, the amount of air introduced by the ventilation device 3 is, for example, about 150 to 160 m ³ /h (Lube), and the amount of air sucked in from inside the house 10 and introduced (the amount of air sucked in by the first floor circulation fan air intake 46 or the second floor circulation fan air intake 55) is, for example, about 350 m ³ /h (Lube). As a result, the air conditioning indoor unit 21 cools the introduced air by its cooling function and/or heats it by its heating function, supplying about 500 m ³ /h (Lube) of air into the house 10. Here, air is sucked in from inside the house 10 at, for example, about 350 ^m3 /h (Lübbe) and introduced into the air conditioner 2, circulated within the house 10, cooled by the cooling function of the air conditioner 2 and/or heated by the heating function, and then supplied again to each of the designated spaces 113, 122, 124.

Next, the operation of the air conditioning system 1 of this embodiment will be described. The operation of the air conditioning system 1 of this embodiment will be described when it is used in winter and when it is used in summer.

First, a case where the air conditioning system 1 is used in winter will be described.
When the air conditioning system 1 is used in winter, the ventilation function and heat exchange function of the ventilation device 3 are operated while the heating function of the air conditioning device 2 is operated, and the switching unit 8 is switched to the first floor air suction state as shown in Figure 1.

Air from outside the house 10 is introduced into the air conditioner 2 through the ventilation device 3, and by switching the switching unit 8 to the first floor air suction state, air from the underfloor space 114 is introduced through the first floor circulation fan intake 46. The air conditioner 2 heats the air introduced by the ventilation device 3 and the air introduced through the first floor circulation fan intake 46 using its heating function, and supplies the air to each of the designated spaces 113, 122, and 124.

Specifically, in winter, the temperature of the air in the underfloor space 114 near the bottom of the insulated section 18 is difficult to warm up, so by switching the switching unit 8 to the first floor air suction state, the first floor circulation fan intake 46 sucks in the cold air in the underfloor space 114 and introduces it into the air conditioner 2. In this embodiment, the vicinity of the bottom of the insulated section 18 is preferably within a range of up to a position 1 m higher than the bottom of the insulated section 18, and more preferably within a range of up to a position 50 cm higher than the bottom of the insulated section 18. The vicinity of the bottom of the insulated section 18 in the house 10 is a place where the air is difficult to warm up in the house 10 in winter, and where the air conditioner 2 is considered to be ineffective, even if the heating function is operated by the air conditioner 2.

The air conditioner 2 uses its heating function to heat the air introduced from the ventilation device 3 and the air introduced through the first floor circulation fan intake 46 by switching the switching unit 8 to the first floor air suction state, and supplies air to a specified space 113 through each air intake 43, 44 on the first floor, and supplies air to specified spaces 122, 124 through each air intake 52, 54 on the second floor.

In this embodiment, the first floor circulation fan intake 46 is located in the underfloor space 114. The first floor circulation fan intake 46, which is located in the underfloor space 114 near the bottom of the insulated section 18, draws in air from the underfloor space 114 near the bottom of the insulated section 18, where the temperature does not rise easily and heating is difficult, when the heating function is performed by the air conditioner 2 in winter. The cold air drawn in by the first floor circulation fan intake 46 is returned to the air conditioner 2, where it is heated again by the heating function of the air conditioner 2 and supplied to each space 113, 122, 124. In this way, the air conditioning system 1 can cause the heating function of the air conditioner 2 to function while introducing cold air from within the house 10 and circulating the air.

Next, a case where the air conditioning system 1 is used in summer will be described.
When the air conditioning system 1 is used in the summer, the ventilation function and heat exchange function of the ventilation device 3 are operated while the cooling function of the air conditioning device 2 is operated, and the switching unit 8 is switched to the second floor air suction state as shown in Figure 2.

Air from outside the house 10 is introduced into the air conditioner 2 through the ventilation device 3, and by switching the switching unit 8 to the second floor air suction state, air from the attic space 125 is introduced through the second floor circulation fan intake 55. The air conditioner 2 cools the air introduced by the ventilation device 3 and the air introduced through the second floor circulation fan intake 55 using its cooling function, and supplies the air to each of the designated spaces 113, 122, and 124.

Specifically, in the summer, the temperature of the air in the attic space 125 near the top of the insulated section 18 is difficult to cool, so by switching the switching unit 8 to the second floor air suction state, the warm air in the attic space 125 is sucked in by the second floor circulation fan intake 55 and introduced into the air conditioner 2. In this embodiment, the vicinity of the top of the insulated section 18 is preferably within a range of up to a position 1 m lower than the bottom of the insulated section 18, and more preferably within a range of up to a position 50 cm lower than the bottom of the insulated section 18. The vicinity of the top of the insulated section 18 in the house 10 is a place where the air is difficult to cool in the summer and where the air conditioner 2 is considered to be ineffective, even if the cooling function is operated by the air conditioner 2.

The air conditioner 2 cools the air introduced from the ventilation device 3 and the air introduced through the second floor circulation fan intake 55 by switching the switching unit 8 to the second floor air suction state, using the cooling function, and supplies air to a specified space 113 through each air intake 43, 44 on the first floor, and supplies air to specified spaces 122, 124 through each air intake 52, 54 on the second floor.

In this embodiment, the second floor circulation fan intake 55 is located in the attic space 125. When the air conditioning unit 2 is operated to perform the cooling function in the summer, the second floor circulation fan intake 55 located in the attic space 125 draws in air from the attic space 125 near the top of the insulated section 18, where the temperature is difficult to lower and cooling is difficult to achieve. The warm air drawn in by the second floor circulation fan intake 55 is returned to the air conditioning unit 2, where it is cooled again by the cooling function of the air conditioning unit 2 and supplied to each space 113, 122, and 124. In this way, the warm air in the house 10 can be introduced into the air conditioning unit 2 to circulate the air while the cooling function of the air conditioning unit 2 is functioning.

In the above air conditioning system 1, when heating in winter, cold air from the underfloor space 114 near the bottom of the insulated section 18 is introduced into the air conditioner 2, and the air conditioner 2 can warm the introduced air and supply it to each space 113, 122, 124 of the house 10. When cooling in summer, warm air from the attic space 125 near the top of the insulated section 18 is introduced into the air conditioner 2, and the air conditioner 2 can cool the introduced air and supply it to each space 113, 122, 124 of the house 10. Therefore, by operating the heating function or cooling function of the air conditioner 2 while introducing cold air near the bottom of the insulated section 18 or warm air near the top of the insulated section 18 to circulate the air, the temperature difference of the air in the house 10 can be reduced while generating an air flow.
Therefore, with a simple configuration, it is possible to adjust the temperature in the entire house 10 to a uniform temperature. In particular, in a house 10 that is highly airtight and has high thermal insulation performance, it is possible to operate the air conditioning system 1 with reduced power consumption.
In addition, while ventilating the house 10 with the ventilation device 3, the temperature inside the house 10 can be adjusted to a uniform temperature.

According to the air conditioning system of the present embodiment described above, the following effects are achieved.
The air conditioning system 1 of this embodiment is an air conditioning system 1 equipped with an air conditioner 2 that heats the air inside the house 10 that is introduced through the first floor circulation fan intake 46 or the second floor circulation fan intake 55 using a heating function or cools it using an air conditioning function and supplies it into the house 10, and when the heating function is functioning, the first floor circulation fan intake 46 is positioned near the bottom of the insulated section 18 inside the house 10, and when the air conditioning function is functioning, the second floor circulation fan intake 55 is positioned near the top of the insulated section 18 inside the house 10.

Therefore, when the heating function is performed, cold air near the bottom of the insulated section 18 in the house 10 is introduced into the air conditioner 2 via the first floor circulation fan intake 46, or when the cooling function is performed, warm air near the top of the insulated section 18 in the house 10 is introduced via the second floor circulation fan intake 55. This allows the air conditioner 2 to circulate cold or warm air in the house 10 and perform air conditioning by operating the heating or cooling function. Therefore, with a simple configuration, the overall temperature in the house 10 can be adjusted to a uniform temperature. In particular, in a house 10 that is highly airtight and has high insulation performance, the air conditioning system 1 can be operated with low power consumption.

In addition, in this embodiment, the first floor circulation fan intake 46 is located in the underfloor space 114, and the second floor circulation fan intake 55 is located in the attic space 125. Therefore, if the house 10 is constructed of two stories, air from an area with more severe temperature conditions can be sucked in and introduced into the air conditioner 2, circulating cooler or warmer air to perform the heating or cooling function, thereby performing air conditioning. This makes it possible to more efficiently adjust the overall temperature inside the house 10 to a uniform temperature.

In addition, in this embodiment, the air conditioner 2 has both a heating function and a cooling function, and is equipped with a switching unit 8 that can switch the air introduced into the air conditioner 2 to either cold air introduced through the first floor circulation fan intake 46 or warm air introduced through the second floor circulation fan intake 55. As a result, when the heating function and the cooling function are operated by switching using the switching unit 8, the overall air temperature inside the house 10 can be adjusted to a uniform temperature by switching the switching unit 8 according to the season, for example, summer or winter.

In addition, in this embodiment, the house 10 is further provided with a ventilation device 3 that introduces air outside the house 10 into the house 10 and exhausts air inside the house 10 to the outside of the house 10, and the ventilation device 3 introduces the air outside the house 10 into the air conditioning device 2, which heats the air outside the house 10 introduced by the ventilation device 3 using a heating function or cools it using a cooling function and supplies it into the house 10. This makes it possible to provide an air conditioning system 1 that includes the air conditioning device 2 and the ventilation device 3, and to realize a system that can adjust the overall temperature inside the house 10 to a uniform temperature while ventilating the house 10.

Second Embodiment
Next, a second embodiment of the present invention will be described. Fig. 3 is a diagram showing a state during heating and cooling in a house 10A equipped with an air conditioning system 1A according to the second embodiment of the present invention.
The house 10A of the second embodiment is different from the house 10 of the first embodiment in the heat insulation section 18A. In addition, in the second embodiment, the arrangement positions of the first floor side circulation fan intake 46A and the second floor side circulation fan intake 55A are different from the first floor side circulation fan intake 46 and the second floor side circulation fan intake 55 of the first embodiment. In the second embodiment, the same configuration as in the first embodiment is given the same reference numerals and the description is omitted. Note that, in FIG. 3 of the second embodiment, the air flow during heating and cooling, which is described separately in FIG. 1 and FIG. 2 of the first embodiment, is shown in one figure. In FIG. 3, the air drawn into the first floor side circulation fan intake 46A during cooling is indicated by a solid arrow, and the air drawn into the second floor side circulation fan intake 55A during heating is indicated by a dashed arrow.

The insulated section 18A of the second embodiment does not have the roof side insulation line 181 arranged along the roof 13 of the first embodiment, but has a shed insulation line 183 arranged along the roof ceiling 15 above the roof ceiling 15. Also, the insulated section 18A of the second embodiment has an outer insulation line 182A whose lower end is shorter than the outer wall side insulation line 182 of the first embodiment and which extends in the vertical direction from the roof 13 to the floor 16. Also, the insulated section 18A has a floor side insulation line 184 arranged along the floor 16 below the floor 16.
In the second embodiment, the floor 16 of the first floor of the house 10 is disposed along the floor-side insulation line 184 of the insulation section 18A, and thus constitutes an insulation section, and is also a finishing surface (finishing part) disposed at the bottom of the living space or non-living space of the first floor. The roof ceiling 15 of the second floor of the house 10 is disposed along the shed insulation line 183 of the insulation section 18A, and thus constitutes an insulation section, and is also a finishing surface (finishing part) at the top of the non-living space of the second floor.

The air conditioning system 1A of the second embodiment also has a first floor circulation fan intake 46A and a second floor circulation fan intake 55A, and the first floor circulation fan intake 46A and the second floor circulation fan intake 55A are located at positions different from the positions at which the first floor circulation fan intake 46 and the second floor circulation fan intake 55 of the first embodiment are located.

In the second embodiment, the first floor circulation fan intake 46A is located near the floor 16 (insulated section 18A, finishing section) below the first floor piping space 131 on the first floor. The vicinity of the floor 16 below the first floor piping space 131 on the first floor is near the bottom of the insulated section 18A of the house 10, and is near the floor 16 located at the bottom of the non-residential space on the bottom floor of the two-story house 10.

Here, in this embodiment, the vicinity of the floor 16 (insulated section 18A, finishing section) located at the bottom of the non-residential space on the bottom floor of the two-story house 10 is preferably within a range of up to 1 m above the top surface of the floor 16, and more preferably within a range of up to 50 cm above the top surface of the floor 16. The vicinity of the floor 16 at the bottom of the non-residential space on the bottom floor of the two-story house 10 in the house 10 is a place where the air is difficult to warm in the house 10 and the air conditioner 2 is considered to be ineffective even when the heating function is operated by the air conditioner 2 in winter. For example, in general, when the heating function is operated in winter, if the temperature of the feet in the living space or non-residential space is 3°C or more lower than the heating setting temperature, the air conditioning is considered to be ineffective. In this embodiment, the vicinity of the floor 16 located at the bottom of the non-residential space on the bottom floor of the two-story house 10 is a place where the temperature is 3°C or more lower than the heating setting temperature when the heating function is operated.

The second floor circulation fan intake 55A is located near the roof ceiling 15 (insulated section 18A, finishing section) of the second floor upper piping space 134. The vicinity of the roof ceiling 15 above the second floor upper piping space 134 is near the top of the insulated section 18A of the house 10, and is near the roof ceiling 15 located at the top of the non-residential space on the top floor of the two-story house 10.

Here, in this embodiment, the vicinity of the roof ceiling 15 (insulated section 18A, finishing section) located at the top of the non-residential space on the top floor of the two-story house 10 is preferably within a range of 1 m lower than the underside of the roof ceiling 15, and more preferably within a range of 50 cm lower than the underside of the roof ceiling 15. The vicinity of the roof ceiling 15 at the top of the non-residential space on the top floor of the two-story house 10 in the house 10 has traditionally been a place where the air is difficult to cool in the house 10 and the air conditioner 2 is considered to be ineffective, even if the cooling function is operated by the air conditioner 2 in the summer. For example, in general, when the cooling function is operated in the summer, if the temperature near the ceiling of the residential space or non-residential space is 3°C or more higher than the set temperature of the cooling, the air conditioning is considered to be ineffective. In this embodiment, the vicinity of the roof ceiling 15 located at the top of the non-residential space on the top floor of the two-story house 10 is a place where the temperature is 3°C or more higher than the air conditioning setting when the air conditioning function is activated.

The second embodiment of the air conditioning system 1A configured as above can also achieve the same effects as the first embodiment. Specifically, in the second embodiment of the air conditioning system 1A, the first floor circulation fan intake 46A is disposed near the bottom floor 16 of the non-residential space on the bottom floor of the house 10. The second floor circulation fan intake 55A is disposed near the top roof ceiling 15 of the non-residential space on the top floor of the house 10. This allows air from a location with harsher temperature conditions to be sucked in and introduced into the air conditioning device 2, circulating the cold air near the floor 16 on the first floor of the house 10 or the warm air near the roof ceiling 15 on the second floor, and performing the heating or cooling function to perform air conditioning. Thus, with a simple configuration, the entire temperature in the house 10A can be adjusted to a uniform temperature.

Third Embodiment
Next, a third embodiment of the present invention will be described. Fig. 4 is a diagram showing a state during heating and cooling in a house 10A equipped with an air conditioning system 1B according to the third embodiment of the present invention.
In the third embodiment, the positions of the first floor circulation fan intake 46B and the second floor circulation fan intake 55B are different from those of the first floor circulation fan intake 46A and the second floor circulation fan intake 55A in the second embodiment. In the third embodiment, the same components as those in the second embodiment are denoted by the same reference numerals and will not be described. In addition, in FIG. 4 of the third embodiment, the air flow during heating and cooling is shown in one figure, as in FIG. 3 of the second embodiment. In FIG. 4, the air drawn into the first floor circulation fan intake 46B during cooling is shown by a solid arrow, and the air drawn into the second floor circulation fan intake 55B during heating is shown by a dashed arrow.

The house 10A of the third embodiment is configured similarly to the house 10A of the second embodiment, and the insulated compartment 18A also has a similar configuration.
In addition, the third embodiment has a first floor circulation fan air intake 46B and a second floor circulation fan air intake 55B, and the first floor circulation fan air intake 46B and the second floor circulation fan air intake 55B are positioned at positions different from the positions at which the first floor circulation fan air intake 46A and the second floor circulation fan air intake 55A are positioned in the second embodiment.

In the third embodiment, the first floor circulation fan intake 46B is located near the floor 16 (insulated section 18A, finishing section) below one side wall surface 112a of the first floor corridor space 112. The vicinity of the floor 16 below one side wall surface 112a of the first floor corridor space 112 is the vicinity of the floor 16 located at the bottom of the non-residential space on the bottom floor of the two-story house 10. The interpretation of the vicinity of the floor 16 (insulated section 18A, finishing section) located at the bottom of the non-residential space on the bottom floor of the two-story house 10 is the same as in the second embodiment.

The second floor circulation fan intake 55B is located near the interior ceiling 123a above one side wall surface 123b of the second floor corridor space 123. The vicinity of the interior ceiling 123a above one side wall surface 123b of the second floor corridor space 123 is near the interior ceiling 123a (finishing part) located at the top of the non-residential space on the top floor of the two-story house 10.

Here, in this embodiment, the vicinity of the interior ceiling 123a (finishing part) of the second floor corridor space 123 located at the top of the non-residential space on the top floor of the two-story house 10 is preferably within a range of 1 m lower than the bottom surface of the interior ceiling 123a, and more preferably within a range of 50 cm lower than the bottom surface of the interior ceiling 123a. The vicinity of the interior ceiling 123a at the top of the non-residential space on the top floor of the two-story house 10 in the house 10 is a place where the air is difficult to cool in the house 10 and the air conditioner 2 is considered to be ineffective, even if the cooling function is operated by the air conditioner 2 in the summer. For example, in general, when the cooling function is operated in the summer, if the temperature near the ceiling of the residential space or non-residential space is 3°C or more higher than the set temperature of the cooling, the air conditioning is considered to be ineffective. In this embodiment, the vicinity of the interior ceiling 123a located at the top of the non-residential space on the top floor of the two-story house 10 is a location that is considered to be 3°C or more higher than the cooling setting temperature when the cooling function is operated.

In the third embodiment, the first floor circulation fan intake 46B or the second floor circulation fan intake 55B draws in air present in the first floor corridor space 112 and the second floor corridor space 123, which are non-residential spaces. Air is not supplied from the air conditioner 2 or the ventilation device 3 to the non-residential space, and the non-residential space is connected to the adjacent space at the bottom, making it a space where dirty air tends to collect. Therefore, air from the non-residential space where no air conditioning or heating is performed is introduced into the air conditioner 2 through the first floor circulation fan intake 46B or the second floor circulation fan intake 55B, and the air cooled or heated by the air conditioner 2 is supplied to the residential space, creating an air flow and allowing the cooling or heating function to function efficiently. This allows energy saving effects to be achieved.

The third embodiment of the air conditioning system 1B configured as above can also achieve the same effects as the first and second embodiments. Specifically, in the third embodiment of the air conditioning system 1B, the first floor side circulation fan intake 46B is arranged near the bottom floor 16 (insulated section 18A, finishing section) of the first floor corridor space 112 (non-residential space) on the lowest floor of the house 10. Also, the second floor side circulation fan intake 55B is arranged near the indoor ceiling 123a (finishing section) of the second floor corridor space 123 (non-residential space) on the top floor of the house 10. As a result, by sucking in air from a place with a harsher temperature condition and introducing it into the air conditioning device 2, the cold air near the floor 16 of the first floor corridor space 112 on the first floor in the house 10 or the warm air near the indoor ceiling 123a of the second floor corridor space 123 on the second floor can be circulated to perform the heating function or cooling function, thereby performing air conditioning. This allows the temperature in the entire house 10A to be adjusted to a uniform temperature with a simple configuration.

Fourth Embodiment
Next, a fourth embodiment of the present invention will be described. Fig. 5 is a diagram showing a state during heating and cooling in a house 10 equipped with an air conditioning system 1C according to the fourth embodiment of the present invention.
The air conditioning system 1C of the fourth embodiment is the air conditioning system 1 of the first embodiment, which is equipped with an air conditioning maintenance structure 9. The same components as those of the first embodiment are given the same reference numerals and will not be described. Note that, in FIG. 5 of the fourth embodiment, similar to FIG. 3 of the second embodiment, the air flow during heating and cooling is shown in one diagram. In FIG. 5, the air drawn into the first floor circulation fan intake 46 during cooling is shown by a solid arrow, and the air drawn into the second floor circulation fan intake 55C during heating is shown by a dashed arrow.

An air conditioning system 1C of the fourth embodiment includes an air conditioning maintenance structure 9 in addition to the configuration of the air conditioning system 1 of the first embodiment.
The air conditioning maintenance structure 9 is a structure for performing maintenance on the filters (first-floor filter 912, second-floor filter 922) of the air conditioning system 1. In detail, the air conditioning maintenance structure 9 is a structure that makes it easy to perform maintenance on the filters (first-floor filter 912, second-floor filter 922) provided in a circulation path for circulating the air sucked from the first-floor circulation fan intake 46 and the second-floor circulation fan intake 55C in the air conditioning system 1 to the air conditioner 2.

The air conditioning maintenance structure 9 of this embodiment includes a first floor air conditioning maintenance structure 91 provided on the first floor side, and a second floor air conditioning maintenance structure 92 provided on the second floor side.

In the fourth embodiment, on the first floor side, the end of the first floor side circulation intake duct L31 shown in FIG. 1 of the first embodiment on the side of the first floor side circulation fan intake port 46 is not connected to the first floor side circulation fan intake port 46, but the end on the side of the switching unit 8 is connected to the switching unit 8 to shorten the length, and a first floor side air conditioning maintenance structure 91 is provided. Also, on the second floor side, the end of the second floor side circulation intake duct L32 shown in FIG. 1 of the first embodiment on the side of the second floor side circulation fan intake port 55 is not connected to the second floor side circulation fan intake port 55, but the end on the side of the switching unit 8 is connected to the switching unit 8 to shorten the length, and a second floor side air conditioning maintenance structure 92 is provided.

As shown in FIG. 5, the first floor air conditioning maintenance structure 91 has a first floor air intake airtight space 911 (air intake airtight space), a first floor circulation intake duct L31 (maintenance duct), a first floor circulation fan intake port 46 (air intake port), a first floor filter 912 (filter), and a first floor maintenance door 913 (maintenance door).

The first floor airtight intake space 911 is provided by utilizing the first floor piping space 131 (space in which a duct can be arranged) that is arranged between the first floor bathroom space 111 and the first floor corridor space 112 on the first floor in the left-right direction. The first floor airtight intake space 911 is configured to include the first floor piping space 131 and extend in the vertical direction. A duct for sending air can be arranged in the space inside the first floor piping space 131. Even when the first floor airtight intake space 911 is provided in the first floor piping space 131, a duct for sending air can be arranged in the first floor airtight intake space 911 that is arranged in the first floor piping space 131.

The first floor air intake airtight space 911 is formed to extend vertically, and extends vertically from the middle of the underfloor space 114 to the middle of the first floor piping space 131. The first floor air intake airtight space 911 is configured to be airtight, and air sucked in by the first floor circulation fan intake port 46 connected to the lower side is circulated in the first floor air intake airtight space 911 toward the first floor circulation intake duct L31 connected to the upper side.

The first floor air intake airtight space 911 is formed, for example, in a cylindrical shape extending in the vertical direction, and is configured so that the inside of the first floor air intake airtight space 911 can be cleaned by opening the first floor maintenance door 913 described below. The first floor air intake airtight space 911 is formed using the first floor piping space 131, and is therefore formed in a cylindrical shape with a larger opening area compared to the opening area of the duct. The first floor air intake airtight space 911 is configured to be large enough that, for example, a maintenance worker can use a cleaning tool to clean off soot by opening the first floor maintenance door 913 described below.

The first floor circulation intake duct L31 is connected to the lower end of the first floor intake airtight space 911. One side of the first floor circulation intake duct L31 is connected to the first floor intake airtight space 911, and the other side is connected to the air conditioning unit 2 via the switching unit 8 and the common circulation intake duct L33.

One side of the first floor side circulation intake duct L31 is connected to the lower end of the first floor side intake airtight space 911, with the one end of the first floor side circulation intake duct L31 penetrating the lower end of the first floor side intake airtight space 911 and opening inside the first floor side intake airtight space 911. One end of the first floor side circulation intake duct L31 opens upward inside the first floor side intake airtight space 911. In this embodiment, the first floor side circulation intake duct L31 constitutes a maintenance duct, and a first floor side filter 912 is attached to the end that opens upward inside the first floor side intake airtight space 911.

The first floor circulation fan intake 46 is positioned to communicate between the first floor intake airtight space 911 and the underfloor space 114 in the house 10. As described above, the first floor circulation fan intake 46 is positioned in the underfloor space 114 near the bottom of the insulated section 18 in the house 10. The first floor circulation fan intake 46 draws in air from the underfloor space 114 to circulate the air in the house 10 to the air conditioning unit 2.

The first floor filter 912 is positioned inside the first floor airtight intake space 911 so as to cover the opening at the end of the first floor circulation intake duct L31 on the first floor airtight intake space 911 side. The first floor filter 912 captures foreign matter such as dust contained in the air that flows through the first floor airtight intake space 911 and into the first floor circulation intake duct L31. The first floor filter 912 is attached to the opening at the end of the first floor circulation intake duct L31 on the first floor airtight intake space 911 side so that maintenance such as replacement can be performed when the first floor maintenance door 913 is open.

The first floor maintenance door 913 is configured to be able to open and close the first floor air intake airtight space 911, and is arranged on the lower side of one side wall surface 112a of the first floor corridor space 112. Because the first floor maintenance door 913 is arranged on the lower side of one side wall surface 112a of the first floor corridor space 112, it is within reach, making it easy for maintenance workers to open and close the first floor maintenance door 913. In addition, the first floor maintenance door 913 is formed in a position and size that allows maintenance workers to perform maintenance such as replacing the first floor filter 912. In addition, the first floor maintenance door 913 is formed in a position and size that allows maintenance workers to clean the inside of the first floor air intake airtight space 911.

The second floor air conditioning maintenance structure 92 also has a second floor air intake airtight space 921 (air intake airtight space), a second floor circulation intake duct L32 (maintenance duct), a second floor circulation fan intake port 55C (air intake port), a second floor filter 922 (filter), and a second floor maintenance door 923 (maintenance door).

The second floor airtight space 921 for intake is provided by utilizing the second floor piping space 133 (space in which a duct can be arranged) arranged between the second floor storage space 121 and the first living space 122 on the second floor in the left-right direction. The second floor airtight space 921 for intake is configured to extend in the vertical direction including the second floor piping space 133. A duct for sending air can be arranged in the space inside the second floor piping space 133. Even when the second floor airtight space 921 for intake is provided in the second floor piping space 133, a duct for sending air can be arranged in the second floor airtight space 921 for intake arranged in the second floor piping space 133. In this embodiment, the second floor introduction duct L16, the second floor exhaust junction duct L27, and the second floor storage space exhaust duct L25 are arranged to penetrate the second floor airtight space 921 for intake arranged in the second floor piping space 133.

The second floor air intake airtight space 921 is formed extending in the vertical direction, and extends from the upper end of the communication passage 126 formed at the bottom of the second floor piping space 133 to the lower end of the roof side insulation line 181. The second floor air intake airtight space 921 is configured to be airtight, and air sucked in by the second floor circulation fan intake port 55C connected to the upper side is circulated in the second floor air intake airtight space 921 toward the second floor circulation intake duct L32 connected to the lower side.

The second floor airtight space 921 for intake is formed, for example, in a cylindrical shape extending in the vertical direction, and is configured so that the inside of the second floor airtight space 921 for intake can be cleaned by opening the second floor maintenance door 923 described later. The second floor airtight space 921 for intake is formed by utilizing the second floor piping space 131, and is therefore formed in a cylindrical shape with a larger opening area compared to the opening area of the duct. The inside of the second floor airtight space 921 for intake is configured to be large enough that, for example, a maintenance worker can use a cleaning tool to clean off soot by opening the second floor maintenance door 923 described later.

The second floor circulation intake duct L32 is connected to the lower end of the second floor intake airtight space 921. One side of the second floor circulation intake duct L32 is connected to the second floor intake airtight space 921, and the other side is connected to the air conditioner 2 via the switching unit 8 and the common circulation intake duct L33.

One side of the second floor side circulation intake duct L32 is connected to the lower end of the second floor side intake airtight space 921, with the one end of the second floor side circulation intake duct L32 penetrating the lower end of the second floor side intake airtight space 921 and opening inside the second floor side intake airtight space 921. One end of the second floor side circulation intake duct L32 opens upward inside the second floor side intake airtight space 921. In this embodiment, the second floor side circulation intake duct L32 constitutes a maintenance duct, and a second floor side filter 922 is attached to the end that opens upward inside the second floor side intake airtight space 921.

The second floor circulation fan intake 55C is positioned to communicate between the second floor intake airtight space 921 and the attic space 125 inside the house 10. As described above, the second floor circulation fan intake 55C is positioned in the attic space 125 near the top of the insulated section 18 inside the house 10. The second floor circulation fan intake 55C draws in air from the attic space 125 to circulate the air inside the house 10 to the air conditioner 2.

The second floor filter 922 is arranged inside the second floor airtight intake space 921 so as to cover the opening at the end of the second floor circulation intake duct L32 on the second floor airtight intake space 921 side. The second floor filter 922 captures foreign matter such as dust contained in the air that flows through the second floor airtight intake space 921 and into the second floor circulation intake duct L32. The second floor filter 922 is attached to the opening at the end of the second floor circulation intake duct L32 on the second floor airtight intake space 921 side so that maintenance such as replacement can be performed when the second floor maintenance door 923 is open.

The second floor maintenance door 923 is configured to be able to open and close the second floor air intake airtight space 921, and is disposed on the lower side of one side wall surface 122a of the second floor first living space 122. Since the second floor maintenance door 923 is disposed on the lower side of one side wall surface 122a of the second floor first living space 122, it is within reach, making it easy for a maintenance worker to open and close the second floor maintenance door 923. In addition, the second floor maintenance door 923 is formed in a position and size that allows a maintenance worker to perform maintenance such as replacing the second floor filter 922. In addition, the second floor maintenance door 923 is formed in a position and size that allows a maintenance worker to clean the inside of the second floor air intake airtight space 921.

The first floor air conditioning maintenance structure 91 and the second floor air conditioning maintenance structure 92 configured as described above make it easy to perform maintenance work on the filters of the air conditioning system 1 (the first floor filter 912, the second floor filter 922).
Conventionally, in configurations where a filter is attached to the air intake, if the air intake is located at a high position or under the floor, it was difficult to perform maintenance such as replacing the filter because maintenance work required climbing to a high position or peering under the floor.
In contrast, in the present invention, by opening the maintenance doors (1st floor maintenance door 913, 2nd floor maintenance door 923), maintenance work such as replacing the filters (1st floor filter 912, 2nd floor filter 922) and cleaning the inside of the intake airtight space (1st floor intake airtight space 911, 2nd floor intake airtight space 921) can be easily performed.

According to the air conditioning maintenance structure 9 of the fourth embodiment, the following effects are achieved.
The first floor air conditioning maintenance structure 91 of this embodiment comprises a first floor air intake airtight space 911 which is airtight and is provided in the first floor piping space 131, a first floor circulation intake duct L31 which is connected to the first floor air intake airtight space 911 with one side opening into the first floor air intake airtight space 911 and the other side connected to the air conditioning unit 2, a first floor circulation fan air intake port 46 which is arranged to communicate the first floor air intake airtight space 911 with the space within the house 10, a first floor filter 912 which is arranged inside the first floor air intake airtight space 911 so as to cover the opening on the end side of the first floor circulation intake duct L31 on the first floor air intake airtight space 911 side, and a first floor maintenance door 913 which is configured to be able to open and close the first floor air intake airtight space 911 and is arranged in a position where maintenance of the first floor filter 912 can be performed. The second floor air conditioning maintenance structure 92 also includes a second floor air intake airtight space 921 which is airtight and is provided in the second floor piping space 133, a second floor circulation intake duct L32 which is connected to the second floor air intake airtight space 921 with one side opening into the second floor air intake airtight space 921 and the other side connected to the air conditioning unit 2, a second floor circulation fan air intake port 55C which is arranged to communicate the second floor air intake airtight space 921 with the space within the house 10, a second floor filter 922 which is arranged inside the second floor air intake airtight space 921 so as to cover the opening on the end side of the second floor circulation intake duct L32 on the second floor air intake airtight space 921 side, and a second floor maintenance door 923 which is configured to be able to open and close the second floor air intake airtight space 921 and is arranged in a position where maintenance of the second floor filter 922 can be performed.

As a result, the filters (first floor filter 912, second floor filter 922) are positioned within reach when the maintenance doors (first floor maintenance door 913, second floor maintenance door 923) are opened, so that maintenance work such as replacing the filters (first floor filter 912, second floor filter 922) and cleaning the inside of the intake airtight space (first floor intake airtight space 911, second floor intake airtight space 921) can be easily performed by opening the maintenance doors (first floor maintenance door 913, second floor maintenance door 923).

In addition, in this embodiment, the first floor circulation fan intake 46 is disposed in the underfloor space 114, and the second floor circulation fan intake 55C is disposed in the attic space 125. If a filter is disposed in the underfloor space 114 or the attic space 125, it is difficult to reach, making maintenance work such as replacing the filter difficult. In contrast, according to the configuration of the present invention, by opening the maintenance doors (first floor maintenance door 913, second floor maintenance door 923), maintenance work such as replacing the filters (first floor filter 912, second floor filter 922) and cleaning the inside of the intake airtight space (first floor intake airtight space 911, second floor intake airtight space 921) can be easily performed.

Fifth Embodiment
Next, a fifth embodiment of the present invention will be described below. Fig. 6 is a diagram showing a state during heating and cooling in a house 10A equipped with an air conditioning system 1D according to the fifth embodiment of the present invention.
The house 10A of the fifth embodiment has a different heat-insulated section 18A compared to the house 10 of the fourth embodiment, and is similar to the heat-insulated section 18A of the house 10A shown in FIG. 3 of the second embodiment. In addition, the fifth embodiment differs in the arrangement positions of the first floor circulation fan intake 46 and the second floor circulation fan intake 55D from the first floor circulation fan intake 46 and the second floor circulation fan intake 55C of the fourth embodiment. In the fifth embodiment, the same configurations as the second and fourth embodiments are given the same reference numerals and the description is omitted. Note that, in the figure of the fifth embodiment, the air flow during heating and cooling is shown in one figure, as in FIG. 5 of the fourth embodiment.

The air conditioning system 1A of the fifth embodiment does not have the configuration related to the first floor air conditioning maintenance structure 91 provided on the first floor of the fourth embodiment, and the configuration of the second floor air conditioning maintenance structure 92A of the fifth embodiment differs from the configuration of the second floor air conditioning maintenance structure 92 of the first embodiment.

In the fifth embodiment, the first floor circulation fan intake 46B is disposed near the floor 16 (finishing portion) below the first floor piping space 131 on the first floor, similar to FIG. 4 of the third embodiment. The first floor circulation fan intake 46B is disposed below one side wall surface 112a of the first floor corridor space 112. A filter (not shown) is attached to the first floor circulation fan intake 46B, and since it is within reach, maintenance of the filter of the first floor circulation fan intake 46B can be easily performed.

In addition, with regard to the configuration of the second floor air conditioning maintenance structure 92A, the upper end of the second floor air intake airtight space 921A extends only up to the ceiling surface of the second floor first living space 122, and the second floor circulation fan intake 55D is positioned near the ceiling (finishing part) of the second floor first living space 122 above one side wall surface 122a of the second floor first living space 122 (living space).

In the fifth embodiment, the second floor circulation fan intake 55D is located above the second floor first living space 122. If the filter is located above the second floor first living space 122, it is difficult to reach, making maintenance work such as replacing the filter difficult. In contrast, according to the configuration of the present invention, by opening the second floor maintenance door 923, maintenance work such as replacing the second floor filter 922 and cleaning the inside of the second floor intake airtight space 921A can be easily performed.

Sixth Embodiment
Next, a sixth embodiment of the present invention will be described. Fig. 7 is a diagram showing a house 10A equipped with an air conditioning system 1E according to the sixth embodiment of the present invention, in which an air conditioner, a ventilator, and a switching unit are integrated into an air conditioning unit 4.
The insulated compartment 18A of the house 10A of the sixth embodiment is similar to the insulated compartment 18A of the house 10A of the second embodiment shown in FIG.

The air conditioning system 1E includes an air conditioning unit 4 instead of the air conditioning device 2, the ventilation device 3, and the switching unit 8 in the above embodiment. In the sixth embodiment, the air conditioning unit 4 is configured by integrating the air conditioning device, the ventilation device, and the switching unit of the above embodiment. The air conditioning unit 4 has the cooling function and ventilation function of the air conditioning device 2 in the above embodiment, the ventilation function of the ventilation device 3, and the switching function of the switching unit 8. The switching function of the switching unit 8 in the above embodiment is built into the air conditioning unit 4, and can switch the air in the house 10 introduced into the air conditioning unit 4 to either cold air introduced through the first floor circulation fan intake 46B or warm air introduced through the second floor circulation fan intake 55A.

The air conditioning unit 4 is disposed in the first floor piping space 131. The air conditioning system 1E is provided with a first floor circulation fan intake 46B that connects the air conditioning unit 4 to the first floor piping space 131. The first floor circulation fan intake 46B is disposed near the floor 16 (insulated section 18A, finishing section) below one side wall surface 112a of the first floor corridor space 112, as in FIG. 4 of the third embodiment. The first floor circulation fan intake 46B draws in air near the floor 16 below one side wall surface 112a of the first floor corridor space 112, and introduces the drawn-in air into the air conditioning unit 4.

The air conditioning system 1E also has a configuration for circulating air, which includes a first air supply chamber 71, a second air supply chamber 72, a Y-shaped pipe 73, a first exhaust chamber 74, a second exhaust chamber 75, an air supply duct L1A, an exhaust duct L2A, and a circulation intake duct L3A.

The supply air duct L1A is a pipe for introducing air from outside the house 10 into the air conditioning unit 4 and supplying the air heated by the heating function of the air conditioning unit 4 or cooled by the cooling function of the air conditioning unit 4 to the first floor living space 113, the second floor first living space 122, and the second floor second living space 124. The supply air duct L1A has an air conditioning unit duct L11A, a first floor introduction duct L13, a first supply air duct L14, a second supply air duct L15, a second floor introduction duct L16, a third supply air duct L17, and a fourth supply air duct L18.

The air conditioning unit duct L11A is a pipe that introduces air from outside the house 10 into the air conditioning unit 4. The configurations of the first air supply duct L14, the second air supply duct L15, the third air supply duct L17, the fourth air supply duct L18, the first air supply chamber 71, and the second air supply chamber 72 are the same as those in the first embodiment. This embodiment does not have a duct equivalent to the air conditioning device introduction duct L12 in the first embodiment.

The first floor inlet duct L13 is a piping from the air conditioning unit 4 to the first air supply chamber 71.
The second floor inlet duct L16 is a piping from the air conditioning unit 4 to the second air supply chamber 72.

The exhaust duct L2A is a pipe for discharging the air in the first floor wet area space 111, the first floor corridor space 112, the first floor living space 113, the second floor storage space 121, and the second floor corridor space 123 to the outside of the house 10. The exhaust duct L2A has a first floor wet area exhaust duct L21, a first floor corridor exhaust duct L22, a first floor living room exhaust duct L23, a first floor exhaust junction duct L24, a second floor storage space exhaust duct L25, a second floor corridor exhaust duct L26, a second floor exhaust junction duct L27, a total exhaust junction duct L28A, and an exhaust discharge duct L29A.

The configurations of the first floor bathroom exhaust duct L21, the first floor corridor exhaust duct L22, the first floor living room exhaust duct L23, the first floor exhaust junction duct L24, the second floor storage space exhaust duct L25, the second floor corridor exhaust duct L26, the second floor exhaust junction duct L27, the Y-shaped pipe 73, the first exhaust chamber 74, and the second exhaust chamber 75 are the same as in the first embodiment.

The total exhaust junction duct L28A is a piping from the Y-shaped pipe 73 to the air conditioning unit 4.
The exhaust discharge duct L29A is a pipe that discharges the air exhausted from the air conditioning unit 4 to the outside of the house 10.

The circulation intake duct L3A is a pipe that circulates cold air near the bottom of the insulated section 18A or warm air near the top of the insulated section 18A to the air conditioning unit 4. The circulation intake duct L3A has a second floor circulation intake duct L32A. The circulation intake duct L3A does not have the first floor circulation intake duct L31 and the common circulation intake duct L33 of the first embodiment.

The second floor circulation intake duct L32A is a piping from the second floor circulation fan intake port 55A to the air conditioning unit 4, and circulates the air sucked in from the second floor circulation fan intake port 55A to the air conditioning unit 4.
In the sixth embodiment, the first floor side circulation intake duct L31 and the common circulation intake duct L33 of the first embodiment are built into the air conditioning unit 4.

Next, the operation of the air conditioning system 1E of this embodiment will be described. The operation of the air conditioning system 1E of this embodiment will be described when it is used in winter and when it is used in summer.

First, a case where the air conditioning system 1E is used in winter will be described.
When the air conditioning system 1 is used in winter, the ventilation function and heat exchange function of the air conditioning unit 4 are operated while the heating function is operated, and the built-in switching unit is switched to the first floor air suction state.

Air from outside the house 10 is introduced into the air conditioning unit 4, and by switching the switching unit to the first floor air suction state, cold air near the bottom of the insulated section 18A is introduced through the first floor circulation fan intake 46B. The air conditioning unit 4 heats the introduced air and the air introduced through the first floor circulation fan intake 46B using its heating function, and supplies them to each of the designated spaces 113, 122, and 124.

Next, a case where the air conditioning system 1 is used in summer will be described.
When the air conditioning system 1 is used in the summer, the ventilation function and heat exchange function of the air conditioning unit 4 are operated, the cooling function is operated, and the built-in switching unit is switched to the second floor air intake state.

Air from outside the house 10 is introduced into the air conditioning unit 4, and by switching the switching unit to the second floor air suction state, air near the top of the insulated section 18 is introduced through the second floor circulation fan intake 55A. The air conditioning unit 4 cools the introduced air and the air introduced through the second floor circulation fan intake 55A using its cooling function, and supplies the air to each of the designated spaces 113, 122, and 124.

The sixth embodiment includes an air conditioning unit 4 that is an integrated configuration of the air conditioner 2, ventilator 3, and switching unit 8 in the first to fifth embodiments, and the air conditioning unit 4 is disposed in the first floor piping space 131. The sixth embodiment also provides the same effects as the first to fifth embodiments.

The above describes one preferred embodiment of the air conditioning system of the present invention, but the present invention is not limited to the above-described embodiment and can be modified as appropriate.

For example, in the above embodiment, the cold air from the bottom of the first floor is introduced into the air conditioner through the first floor circulation fan intake (first intake), or the warm air from the top of the second floor is introduced into the air conditioner through the second floor circulation fan intake (second intake), but the present invention is not limited to this. For example, in a room of an apartment building, when the heating function is to be performed, the first intake may be disposed near the northernmost part of the house, and when the cooling function is to be performed, the second intake may be disposed near the southernmost part of the house.
The vicinity of the northernmost or southernmost part of the house is preferably within a range of 1 m inward from the northernmost or southernmost part of the house, and more preferably within a range of 50 cm inward from the northernmost or southernmost part of the house. The vicinity of the northernmost or southernmost part of the house is a place where the air conditioner 2 is conventionally considered to be ineffective.

In the above embodiment, when the heating function is operated in the two-story house 10, the first floor circulation fan intake (first intake) is arranged near the bottom of the bottom floor, and the second floor circulation fan intake (second intake) is arranged near the top of the top floor, but this is not limited to this. For example, when the heating function is operated in a single-story house, a house with three or more stories, each floor of a multi-story house, or a room in an apartment, the first intake may be arranged near the bottom of a single-story house, the bottom floor of a multi-story house, each floor of a multi-story house, or a room in an apartment, and when the cooling function is operated, the second intake may be arranged near the bottom of a single-story house, the bottom floor of a multi-story house, each floor of a multi-story house, or a room in an apartment.

In addition, in the first embodiment, the first floor circulation fan intake (first intake) is located near the bottom of the insulated section 18, and the second floor circulation fan intake (second intake) is located near the top of the insulated section 18, but this is not limited to this. In the first embodiment, the first floor circulation fan intake (first intake) may be located near the first floor floor 16 of the house 10 that constitutes the finished surface (finishing part) located at the bottom of the living space or non-living space on the first floor, the second floor circulation fan intake (second intake) may be located near the second floor floor 17 of the house 10 that constitutes the finished surface (finishing part) located at the bottom of the living space or non-living space on the second floor, or the intake may be located near the ceiling of each space 111, 112, 113, 121, 122, 123, 124 that constitutes the topmost finished surface (finishing part) of each space 111, 112, 113, 121, 122, 123, 124.

In addition, in the above embodiment, the air conditioner 2 has both a heating function and a cooling function, but this is not limited to this. The air conditioner 2 may have only one of the heating function or the cooling function.

In addition, in the above embodiment, the air conditioning system 1 is configured to include a ventilation device 3, but this is not limited thereto, and the air conditioning system 1 may be configured without including a ventilation device 3.

In addition, in the above embodiment, the ventilation method of the ventilation device 3 is a first type ventilation method in which both the supply and exhaust air are provided by a ventilation fan (mechanical fan), but this is not limited to this, and it may be a third type ventilation method in which the exhaust air is provided by a ventilation fan (mechanical fan) and the supply air is provided by natural air supply.

In addition, in the above embodiment, the air conditioner 2 and the ventilation device 3 are placed in the space between the first and second floors, but the locations where the air conditioner 2 and the ventilation device 3 are placed are not limited. The air conditioner 2 may be placed, for example, in the underfloor space 114 or on the floor 16, or in the attic space 125 or the upper piping space 134 on the second floor. When the air conditioner 2 is placed on the floor 16, an air intake may be provided at the bottom of the air conditioner 2 so that it can draw in cold air near the floor 16 when heating is performed using the air conditioner 2.

In addition, in the above embodiment, the first floor circulation intake duct L31 (maintenance duct) and the second floor circulation intake duct L32 (maintenance duct) are indirectly connected to the air conditioner 2 via the switching unit 8 and the common circulation intake duct L33, but this is not limited. The first floor circulation intake duct L31 (maintenance duct) and the second floor circulation intake duct L32 (maintenance duct) may be directly connected to the air conditioner 2.

1, 1B, 1C, 1D, 1E Air conditioning system 2 Air conditioning device 3 Ventilation device 4 Air conditioning unit 8 Switching section 9 Air conditioning maintenance structure 10, 10A Residence 18, 18A Insulated section 46, 46A, 46B First floor side circulation fan intake (first intake)
55, 55A, 55B, 55C 2nd floor circulation fan intake (2nd intake)
91 1st floor air conditioning maintenance structure 92 2nd floor air conditioning maintenance structure 114 Underfloor space (underfloor)
125 Attic space (attic)
131 1st floor piping space (space where ducts can be arranged)
133 2nd floor piping space (space where ducts can be arranged)
911 1st floor air intake airtight space (air intake airtight space)
912 1st floor filter (filter)
913 1st floor maintenance door (maintenance door)
921 2nd floor air intake airtight space (air intake airtight space)
922 2nd floor filter (filter)
923 2nd floor maintenance door (maintenance door)
L31 1st floor circulation intake duct (maintenance duct)
L32 2nd floor circulation intake duct (maintenance duct)

Claims (12)

An air conditioning system including an air conditioning unit that heats air in a house introduced through a first air intake port or a second air intake port by a heating function or cools air by a cooling function and supplies the air to the house, and also introduces air outside the house into the house and exhausts the air inside the house to the outside of the house,
a storage space partitioned as a space for storing the air conditioning unit;
The air conditioning unit is disposed in the storage space on the lowest floor of the house,
in the accommodation space, at least a part of a duct connecting the air conditioning unit and the second air intake port, at least a part of a duct for introducing air outside the house into the air conditioning unit, and at least a part of a duct for discharging air discharged from the air conditioning unit to the outside of the house are arranged, but no duct is arranged connecting the air conditioning unit and the first air intake port;
When the heating function is operated, the first air intake is located in a space surrounded by an insulated compartment in the house and in the vicinity of a floor below a partition wall that separates the storage space from a space adjacent to the storage space ,
When the cooling function is operated, the second air intake is disposed near the top of a space surrounded by an insulated section in the house,
The air drawn in through the first air intake port is introduced into the air conditioning unit without passing through a duct,
The air sucked by the second air intake port is introduced into the air conditioning unit through a duct.
Air conditioning system. An air conditioning system including an air conditioning unit that heats air in a house introduced through a first air intake port or a second air intake port by a heating function or cools air by a cooling function and supplies the air to the house, and also introduces air outside the house into the house and exhausts the air inside the house to the outside of the house,
a storage space partitioned as a space for storing the air conditioning unit;
The air conditioning unit is disposed in the storage space on the lowest floor of the house,
in the accommodation space, at least a part of a duct connecting the air conditioning unit and the second air intake port, at least a part of a duct for introducing air outside the house into the air conditioning unit, and at least a part of a duct for discharging air discharged from the air conditioning unit to the outside of the house are arranged, but no duct is arranged connecting the air conditioning unit and the first air intake port;
When the heating function is operated, the first air intake is located in a space surrounded by an insulated compartment in the house and in the vicinity of a floor below a partition wall that partitions the storage space from a space adjacent to the storage space.
Air conditioning system. The air conditioning unit introduces air outside the house, warms the air introduced from outside the house using a heating function or cools the air introduced from outside the house using a cooling function, and supplies the air to the house through an air intake port.
The house has a first space in which the air intake port is arranged, and a second space communicating with the first space, the second space in which the air intake port is not arranged,
The air conditioning unit exhausts air from the second space in the house, in which the air supply port is not disposed, to the outside of the house via an exhaust port disposed in the house.
3. An air conditioning system according to claim 1 or 2. When the heating function is activated, the first air intake is disposed near the bottom of the lowest floor or near the bottom of each floor when the house is a multi-story house, or near the bottom when the house is a single-story house;
When the cooling function is activated, the second air intake is disposed near the top of the top floor or near the top of each floor if the house is a multi-story house, or near the top of the house if the house is a single-story house.
The air conditioning system according to any one of claims 1 to 3 . The second air intake is disposed in an insulated attic space inside the insulated compartment.
An air conditioning system according to any one of claims 1 to 4 . The air conditioning unit has both the heating function and the cooling function,
A switching unit is provided that can switch so that the air introduced into the air conditioning unit is introduced through either the first air intake port or the second air intake port.
The air conditioning system according to any one of claims 1 to 5 . The first space is a living space,
The second space is a non-habitable space,
The house has a communication passageway at a lower portion between the non-residential space and the residential space adjacent to the non-residential space,
The exhaust outlet is disposed at least in the non-habitable space,
The air conditioning unit exhausts air from the living space to the outside of the house through the exhaust port via the communication passage.
4. An air conditioning system according to claim 3 . The air conditioning unit is configured by integrating an air conditioning device, a ventilation device, and the switching unit .
7. An air conditioning system according to claim 6 . An air conditioning method comprising: a step of heating air inside a house introduced through a first air intake port or a second air intake port by a heating function of an air conditioning unit or cooling the air by a cooling function of the air conditioning unit and supplying the air inside the house; and a step of introducing air outside the house into the house and discharging the air inside the house to the outside of the house,
in a storage space provided on the lowest floor of the house and partitioned as a space to accommodate the air conditioning unit, at least a part of a duct connecting the air conditioning unit and the second air intake, at least a part of a duct for introducing air outside the house into the air conditioning unit, at least a part of a duct for discharging air exhausted from the air conditioning unit to the outside of the house, and the air conditioning unit are disposed in the storage space, and in a space surrounded by a thermally insulated section in the house when the heating function is operated in a state in which a duct connecting the air conditioning unit and the first air intake is not disposed, a step of sucking in air through the first air intake port arranged near a floor below a partition wall that separates the storage space from a space adjacent to the storage space, and introducing the air sucked in through the first air intake port to the air conditioning unit arranged in the storage space on the lowest floor of the house without passing through a duct, and when the cooling function is to be performed, sucking in air through the second air intake port arranged near the top of a space surrounded by a thermally insulated partition in the house, and introducing the air sucked in through the second air intake port to the air conditioning unit arranged in the storage space on the lowest floor of the house via a duct.
Air conditioning method. An air conditioning method comprising: a step of heating air inside a house introduced through a first air intake port or a second air intake port by a heating function of an air conditioning unit or cooling air by a cooling function of the air conditioning unit and supplying the air inside the house; and a step of introducing air outside the house into the house and discharging the air inside the house to the outside of the house,
a step of sucking air through the first air intake port, which is located within a space surrounded by a heat-insulating section in the house and is located near a floor below a partition wall that separates the storage space from a space adjacent to the storage space, and introducing the air intake port into the storage space on the lowest floor of the house, when the heating function is performed in a state in which at least a part of a duct connecting the air conditioning unit and the second air intake port, at least a part of a duct for introducing air outside the house to the air conditioning unit, at least a part of a duct for discharging air discharged from the air conditioning unit to the outside of the house, and the air conditioning unit are disposed in a storage space provided on the lowest floor of the house and partitioned as a space for accommodating the air conditioning unit, and a duct connecting the air conditioning unit and the first air intake port is not disposed.
Air conditioning method. and discharging, by the air conditioning unit, air in a second space that is in communication with a first space in which an air intake port is arranged and in which the air intake port is not arranged, to the outside of the house via an exhaust port arranged in the house.
The air conditioning method according to claim 9 or 10. A step of switching the air introduced into the air conditioning unit to be introduced through either the first air intake port or the second air intake port.
The air conditioning method according to any one of claims 9 to 11.

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