JP7206095B2 - Air conditioning maintenance structure and air conditioning system - Google Patents

Description

The present invention relates to an air conditioning maintenance structure capable of performing filter maintenance and an air conditioning system including the same.

2. Description of the Related Art Conventionally, there is known an air conditioner in which air in a living space is sucked from an air inlet and circulated to an air conditioner (see, for example, Patent Document 1). In such air conditioning equipment, for example, a filter is attached to the intake port, and maintenance work is performed by replacing or cleaning the filter.

JP 2014-240570 A

However, for example, when the air intake with the filter is located at a high position in the room, it is difficult to perform maintenance work such as replacement of the filter. Therefore, it is demanded that the maintenance work of the filter can be easily performed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air conditioning maintenance structure and an air conditioning system that facilitate maintenance work on filters.

The present invention performs maintenance of an air conditioning system (for example, an air conditioning system 1 to be described later) including an air conditioner (for example, an air conditioner 2 to be described later) having one or more functions of a cooling function, a heating function, and a ventilation function. for air conditioning maintenance structure (for example, air conditioning maintenance structure 9, first floor side air conditioning maintenance structure 91, second floor side air conditioning maintenance structure 92, which will be described later), and a space where ducts can be arranged (for example, first floor side piping space 131, which will be described later) , 2nd floor side piping space 133) and having airtight airtight air intake space (for example, 1st floor side airtight airtight space 911, 2nd floor airtight airtight space 921 described later), and one side is the airtight airtight air intake A maintenance duct (for example, a first-floor circulation intake duct L31, which will be described later, is connected to the intake airtight space in an open state, and the other side of which is directly or indirectly connected to the air conditioner). 2nd floor side circulation intake duct L32) and an intake port arranged so as to communicate the airtight space for intake and the space in the house (for example, the 1st floor side circulation fan intake port 46 described later, the 2nd floor side circulation fan Intake port 55) and a filter (for example, a first-floor filter 912 to be described later) arranged so as to cover the opening of the maintenance duct on the end side of the intake airtight space inside the airtight space for intake. , 2nd floor side filter 922) and a maintenance door (for example, a 1st floor side maintenance door described later) that is configured to be able to open and close the airtight space for air intake and is arranged at a position where maintenance of the filter can be performed. 913, second floor side maintenance door 923).

Moreover, it is preferable that the air intake port is an air intake port for sucking air in order to circulate the air in the house to the air conditioner.

Also, the air intake is preferably arranged under the floor (for example, the underfloor space 114 described later) or the attic (for example, the attic space 125 described later), or above the living space or non-living space.

The present invention also relates to an air conditioning system including the air conditioning maintenance structure and an air conditioner having one or more functions of a cooling function, a heating function, and a ventilation function.

ADVANTAGE OF THE INVENTION According to this invention, the air-conditioning maintenance structure and air-conditioning system which can perform maintenance work of a filter easily can be provided.

ADVANTAGE OF THE INVENTION According to this invention, the air conditioning system which can adjust the temperature of the whole house to uniform temperature by a simple structure can be provided.

FIG. 2 is a diagram showing states during heating and cooling in a house provided with the air conditioning system according to the first embodiment of the present invention; FIG. 10 is a diagram showing states during heating and cooling in a house equipped with an air conditioning system according to the second embodiment of the present invention;

<First embodiment>
A first embodiment of an air conditioning system 1 having an air conditioning maintenance structure 9 of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing states during heating and cooling in a house 10 equipped with an air conditioning system 1 according to the first embodiment of the present invention. In addition, in FIG. 1 of the first embodiment, the flow of air during heating and cooling is shown in one figure. In FIG. 1, the solid line arrows indicate the air drawn into the first floor side circulation fan intake port 46 during cooling, and the dashed line arrows indicate the air drawn into the second floor side circulation fan intake port 55 during heating. ing.

As shown in FIG. 1, the air conditioning system 1 of the first embodiment is used in a two-story house 10, for example. The house 10 has a highly airtight structure and a highly heat insulating structure. The air-conditioning system 1 can be used in a house 10 with a highly airtight structure and a highly heat-insulated structure, thereby saving power. In addition, in this embodiment, although the case where the air conditioning system 1 is used for the two-story house 10 was demonstrated as an example, it is not limited to this. Air-conditioning systems may be used, for example, in houses with three or more floors.

A house 10 is, for example, a two-story structure having a roof 13 and an outer wall 14, as shown in FIG. The house 10 has a structure in which basic heat insulation is provided under the roof 13 and inside the outer wall 14 so that the entire house 10 is provided with basic heat insulation. The heat insulation section 18 of the house 10 includes a roof side heat insulation line 181 and an outer wall side heat insulation line 182. - 特許庁The roof-side heat insulation line 181 is composed of a heat insulating material that is arranged on the lower side of the roof 13 so as to be inclined along the direction of inclination of the roof 13 . The outer wall-side heat insulating line 182 is configured by a heat insulating material arranged inside the outer wall 14 and extending vertically from the roof 13 to the ground 101 . House 10 is insulated inside insulation compartment 18 .

The house 10 has, for example, a first-floor plumbing space 111, a first-floor corridor space 112, a first-floor living space 113, and an underfloor space 114 on the first floor, and a second-floor storage space 121 on the second floor. , 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 plumbing 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 side in the horizontal direction (left to right in FIG. 1). Each space 111, 112, 113 is formed by being surrounded by floors, walls and ceilings. On the first floor, an underfloor space 114 is provided below the floor 16 of each space 111 , 112 , 113 . The underfloor space 114 is located inside the outer wall side insulation line 182 in the house 10 and is insulated.

On the first floor, a first-floor piping space 131 (duct arrangement space) is provided between the other side wall surface 111a of the first-floor plumbing space 111 and one side wall surface 112a of the first-floor corridor space 112. ing. The first-floor side pipe space 131 is provided with a first-floor air intake airtight space 911 (air intake airtight space) of the air conditioning maintenance structure 9 to be described later.
In addition, between the first floor and the second floor and between the ceiling of each space 111, 112, 113 on the first floor and the floor 17 of each space 121, 122, 123, 124 on the second floor, the upper part of the first floor A side piping space 132 is provided.

The first-floor plumbing space 111 and the first-floor corridor space 112 are communicated with each other by a communication path 115 at the bottom. Since the air in the first-floor plumbing space 111 is discharged to the outside of the house 10 via the first-floor plumbing-space fan exhaust port 41 (described later), the communication path 115 is provided with the lower side of the first-floor corridor space 112. Air flows toward the first-floor plumbing space 111 .
The first-floor corridor space 112 and the first-floor living space 113 are communicated with each other by a communication path 116 at the bottom. Since the air in the first-floor corridor space 112 is discharged to the outside of the house 10 via the first-floor corridor exhaust fan outlet 42 (described later), the communication path 116 receives air from the lower side of the first-floor living space 113. , toward the corridor space 112 on the first floor.

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 extend from one side to the other in the left-right direction (left to right in FIG. 1). are arranged in this order toward Each space 121, 122, 123, 124 is formed by being surrounded by floors, walls and ceilings. 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 piping space 134 provided above the ceiling 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. do. 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. Note that the attic space 125 may also be referred to as an attic or ceiling space. Also, the attic space 125 may be configured as a living space where people live.

On the second floor, between the other side wall surface 121a of the second floor storage space 121 and the one side wall surface 122a of the first living space 122 on the second floor, there is a second floor piping space 133 (a space in which a duct can be arranged). is provided. The second-floor piping space 133 is provided with a second-floor intake airtight space 921 (intake airtight space) of the air-conditioning maintenance structure 9 to be described later.
Between the ceilings of the spaces 121 , 122 , 123 , 124 on the second floor and the roof ceiling 15 , a piping space 134 on the upper side of the second floor is provided.

The second-floor storage space 121 and the second-floor first living space 122 are communicated with each other by a communication passage 126 at the bottom. Since the air in the second-floor storage space 121 is discharged to the outside of the house 10 via the second-floor storage-space exhaust fan outlet 51 (described later), the communication path 126 is located below the first living space 122 on the second floor. of air flows toward the storage space 121 on the second floor.
The second-floor first living space 122 and the second-floor corridor space 123 are communicated with each other by a communication passage 127 at the bottom. Since the air in the second-floor corridor space 123 is discharged to the outside of the house 10 via the second-floor corridor exhaust fan outlet 53 (described later), the communication path 127 is provided with the lower side of the second-floor first living space 122. Air flows toward the second-floor corridor space 123 .
The second-floor corridor space 123 and the second-floor second living space 124 are communicated with each other by a communication passage 128 at the bottom. Since the air in the second-floor corridor space 123 is discharged to the outside of the house 10 via the second-floor corridor exhaust fan outlet 53 (described later), the communication path 128 is provided with the lower side of the second-floor second living space 124. Air flows toward the second-floor corridor space 123 .

Further, in this embodiment, the floor 16 of the first floor of the house 10 constitutes a finished surface (finished part) arranged at the lowest part of the living space or non-living space of the first floor. The roof ceiling 15 on the second floor of the house 10 constitutes the uppermost finished surface (finished part) of the non-residential space on the second floor.
In addition, the ceilings of the spaces 111, 112, 113, 121, 122, 123, and 124 on each floor constitute the uppermost finished surface (finished part) of each space.

The air conditioning system 1 includes an air conditioner 2, a ventilation device 3, a first floor plumbing space fan outlet 41, a first floor hallway exhaust fan outlet 42, and a first floor first living space air supply fan air supply. A port 43, a first floor second living space air supply fan air inlet 44, a first floor first living space exhaust fan outlet 45, a first floor side circulation fan inlet 46 (first inlet), 2nd floor storage space exhaust fan outlet 51, 2nd floor first living space air supply fan air inlet 52, 2nd floor hallway exhaust fan outlet 53, 2nd floor second living space air supply fan outlet Air port 54, 2nd floor side circulation fan intake port 55 (second intake port), first air supply chamber 71, second air supply chamber 72, Y-tube 73, and first exhaust chamber 74, a second exhaust chamber 75, a switching unit 8, an air conditioning maintenance structure 9, 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 flow passage through which air flows, and are configured by ducts, for example.

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

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 receives the air inside the house 10 introduced through the first-floor circulation fan intake 46 or the second-floor circulation fan intake 55, and the air outside the house 10 introduced by the ventilation device 3 (described later). The air is heated by the heating function or cooled by the cooling function and supplied into the house 10.例文帳に追加The air conditioning indoor unit 21 is connected to the first floor first living space air supply fan air supply port 43, the first floor second living space air supply fan air supply port 44, and the second floor first living space via the air supply duct L1. Air warmed by the heating function or cooled by the cooling function is supplied to each space 113, 122, 124 by the air supply fan air supply port 52 and the second floor second living space air supply fan air supply port 54. .

The 1st floor first living space air supply fan air supply port 43 is arranged on the upper side of the wall surface 113a on one side of the 1st floor living space 113 on the 1st floor.
The 1st floor second living space air supply fan air supply port 44 is arranged near the center in the horizontal direction of the indoor ceiling 113b of the 1st floor living space 113 on the 1st floor.
The second floor first living space air supply fan air inlet 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 air supply fan air inlet 54 is arranged on the upper side of one side wall surface 124a of the second floor second living space 124 on the second floor.

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

The ventilator introduction duct L11 is a pipe that introduces air from outside the house 10 into the ventilator 3 .
The air conditioner introduction duct L12 is a pipe from the ventilator 3 to the air conditioner indoor unit 21 .
The first-floor side introduction duct L<b>13 is branched at the air conditioning indoor unit 21 and is a pipe from the air conditioning indoor unit 21 to the first air supply chamber 71 .
The first air supply duct L14 is branched at the first air supply chamber 71 and is a pipe from the first air supply chamber 71 to the first floor first living space air supply fan air supply port 43 .
The second air supply duct L15 branches at the first air supply chamber 71 and is a pipe from the first air supply chamber 71 to the first floor second living space air supply fan air supply port 44 .
The second-floor side introduction duct L16 is branched at the air conditioning indoor unit 21 and is a pipe from the air conditioning indoor unit 21 to the second air supply chamber 72 .
The third air supply duct L17 branches at the second air supply chamber 72 and is a pipe from the second air supply chamber 72 to the second floor first living space air supply fan air supply port 52 .
The fourth air supply duct L18 is branched at the second air supply chamber 72 and is a pipe from the second air supply chamber 72 to the second floor air supply fan air supply port 54 for the second living space.

Cold air near the bottom of the heat insulating section 18 in the house 10 is introduced into the air conditioner 2 through the first-floor circulation fan intake port 46 when the heating function is to function, for example, in winter. The first-floor circulation fan intake port 46 is connected to the air conditioner 2 via a first-floor intake airtight space 911 and a circulation intake duct L3 (described later). In this embodiment, the first-floor circulation fan intake port 46 is arranged near the bottom of the heat insulating section 18 in the house 10 .

Here, in the present embodiment, the vicinity of the bottom of the heat insulating section 18 is preferably within a range from the bottom of the heat insulating section 18 to a position 1 m higher, and from the bottom of the heat insulating section 18 to a position 50 cm higher. is more preferably within the range of Conventionally, in the vicinity of the lowest part of the heat insulation section 18 in the house 10, even if the heating function is operated by the air conditioner 2, the air in the house 10 is difficult to warm in winter, and the air conditioner 2 is not effective. It is a place where For example, in general, when the heating function is activated in winter, if the temperature at the feet of the living space or non-residential space is 3°C or more lower than the set temperature of the heating, it is considered that the air conditioning is not effective. be done. In this embodiment, the vicinity of the lowest part of the heat insulating section 18 is a place where the temperature is 3° C. or more lower than the set temperature of the heating when the heating function is operated.

In this embodiment, the first-floor circulation fan intake port 46 is arranged in, for example, the underfloor space 114 below the first-floor piping space 131 while being attached to the first-floor intake airtight space 911 . In this embodiment, the underfloor space 114 is at the bottom of the bottom floor of the residence 10 and is also at the bottom of the insulation section 18 .

Also, in the air conditioner 2, for example, when the cooling function is to function in summer, warm air near the top of the heat insulation section 18 in the house 10 is introduced through the second floor side circulation fan intake port 55. . The second-floor circulation fan intake port 55 is connected to the air conditioner 2 via the second-floor intake airtight space 921 and a circulation intake duct L3 (described later). In this embodiment, the second-floor circulation fan intake port 55 is arranged near the top of the heat insulation section 18 in the house 10 .

Here, in the present embodiment, the vicinity of the top of the heat insulating section 18 is preferably within a range from the top of the heat insulating section 18 to a position 1 m lower, and from the top of the heat insulating section 18 to a position 50 cm lower. is more preferably within the range of In the vicinity of the uppermost part of the heat insulating section 18 in the house 10, it is conventionally said that the air in the house 10 is difficult to cool even if the cooling function of the air conditioner 2 is operated in summer, and the air conditioner 2 is not effective. It is a place where For example, in general, when the cooling function is operated in summer, if the temperature near the ceiling of the living space or non-residential space is 3°C or more higher than the cooling set temperature, the air conditioning effect is poor. It is said that In this embodiment, the vicinity of the top of the heat insulating section 18 is a place where the temperature is 3° C. or more higher than the set temperature of the cooling when the cooling function is operated.

In this embodiment, the second-floor circulation fan intake port 55 is arranged in the attic space 125, for example, while being attached to the second-floor intake airtight space 921. As shown in FIG. In this embodiment, the attic space 125 is the top of the top floor of the residence 10 and is also the top of the insulation compartment 18 .

The switching unit 8 is provided in the middle of the circulation intake duct L3. The switching unit 8 converts the air in the house 10 introduced into the air conditioner 2 into cold air introduced through the first floor side circulation fan intake port 46 and the first floor side intake airtight space 911, or the second floor side It is possible to switch to either the warm air introduced via the circulation fan intake port 55 or the airtight space 921 for air intake on the second floor side.

The switching unit 8 switches between the first floor side air suction state in which the air sucked by the first floor side circulation fan intake port 46 is introduced into the air conditioning indoor unit 21 in the middle of the circulation intake duct L3, and the second floor side circulation fan intake state. The second floor side air suction state in which the air sucked in 55 is introduced into the air conditioning indoor unit 21 can be selectively switched.

The circulation intake duct L3 is a pipe that circulates cold air near the bottom of the heat insulation section 18 or warm air near the top of the heat insulation 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 switching unit 8 switches the circulating intake duct L3 to the 1st floor side air suction state, the cold air near the top of the heat insulation section 18 is transferred through the 1st floor circulating intake duct L31 and the common circulating intake duct L33. The air is circulated to the air conditioner indoor unit 21 via the air conditioner. Further, when the switching unit 8 switches the circulation intake duct L3 to the second floor side air intake state, the warm air near the top of the heat insulation section 18 is transferred to the second floor circulation intake duct L32 and the common circulation intake duct L32. It is circulated to the air conditioning indoor unit 21 via L33.

The first-floor circulation intake duct L31 is a pipe from the first-floor intake airtight space 911 to the switching unit 8, with an upstream end connected to the first-floor intake airtight space 911, which will be described later. A first-floor circulation fan intake port 46 (described later) is provided in the first-floor intake airtight space 911 . The first-floor circulation intake duct L31 circulates the air, which is sucked from the first-floor circulation fan intake port 46 and circulated through the first-floor intake airtight space 911 , to the switching unit 8 .

The second-floor circulation intake duct L32 has an upstream end connected to the second-floor intake airtight space 921 described later, and is a pipe from the second-floor airtight intake space 921 to the switching unit 8 . A second floor side circulation fan intake port 55 (described later) is provided in the second floor side intake airtight space 921 . The second-floor circulation intake duct L32 circulates the air, which is sucked from the second-floor circulation fan intake port 55 and circulated through the second-floor intake airtight space 921, to the switching unit 8.

One end of the common circulation intake duct L33 is connected to the switching unit 8, and the other end is connected to the air conditioning indoor unit 21. It is a pipe that circulates the circulated air to the air conditioner indoor unit 21 .

For example, in winter, when the heating function of the air conditioner 2 is functioning, the cold air of the underfloor space 114 is introduced into the air conditioner 2 by switching the switching unit 8 to the first floor side air suction state. . As a result, the air in the underfloor space 114 is sucked through the first-floor side circulation fan intake port 46 (described later) (see the solid line arrow in FIG. 1).
Further, for example, in the summer, when the cooling function of the air conditioner 2 is functioning, the warm air of the attic space 125 is introduced into the air conditioner 2 by switching the switching unit 8 to the second floor side air suction state. be done. As a result, the air in the attic space 125 is sucked through the second-floor-side circulation fan intake port 55 (described later) (see the dashed arrow in FIG. 1).

For example, the switching unit 8 may be configured to switch between the first floor side air suction state and the second floor side air suction state by manual operation. The suction state or the second floor side air suction state may be automatically switched.

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

The ventilator 3 is arranged in the first floor upper piping space 132 between the first and second floors. The ventilation device 3 introduces the air outside the house 10 into the house 10 via the air conditioner 2 by introducing the air outside the house 10 into the air conditioner 2, and also introduces the air inside the house 10 into the house 10. The inside of the house 10 is ventilated by discharging it to the outside 10. - 特許庁The ventilation device 3 also has a heat exchange function, and performs 24-hour ventilation by performing an air supply operation and an air exhaust operation while exchanging heat between supply air and exhaust air.

Ventilation device 3, on the 1st floor, through exhaust duct L2, 1st floor plumbing space fan exhaust port 41, 1st floor hallway exhaust fan exhaust port 42, 1st floor first living space exhaust fan exhaust port 45 The sucked air in each of the predetermined spaces 111, 112, and 113 is discharged outside the house 10, and on the second floor, the air is sucked by the second floor storage space exhaust fan outlet 51 and the second floor corridor exhaust fan outlet 53. The air in each of the predetermined spaces 121, 123 is discharged outside the house 10. - 特許庁The ventilator 3 introduces air from outside the house 10 into the air conditioner 2, so that the air from outside the house 10 is supplied to a predetermined amount through the air supply ports 43 and 44 on the first floor via the air conditioner 2. In addition to supplying air to the space 113, air from outside the house 10 is supplied to predetermined spaces 122 and 124 through the air supply ports 52 and 54 on the second floor.

The first floor plumbing space fan exhaust port 41 is arranged on the indoor ceiling 111b of the first floor plumbing space 111 on the first floor.
The first-floor hallway exhaust fan outlet 42 is arranged on the indoor ceiling 112b of the first-floor hallway space 112 on the first floor.
The first floor first living space exhaust fan outlet 45 is arranged 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 outlet 51 is arranged on the indoor ceiling 121b of the second-floor storage space 121 on the second floor.
The second-floor hallway exhaust fan outlet 53 is arranged on the indoor ceiling 123a of the second-floor hallway space 123 on the second floor.

The exhaust duct L2 extracts the air in the first floor side plumbing space 111, the air in the first floor corridor space 112, the air in the first floor living space 113, the air in the second floor storage space 121, and the air in the second floor corridor space 123. It is a pipe for discharging air to the outside of the house 10 . The exhaust duct L2 includes a first floor plumbing side exhaust duct L21, a first floor hallway side exhaust duct L22, a first floor living room side exhaust duct L23, a first floor side exhaust joining duct L24, and a second floor storage space side exhaust duct L25. , a second-floor hallway-side exhaust duct L26, a second-floor-side exhaust joining duct L27, a total exhaust joining duct L28, and an exhaust discharge duct L29.

The first floor plumbing side exhaust duct L21 is a pipe from the first floor plumbing space fan exhaust port 41 to the first exhaust chamber 74 .
The first-floor corridor-side exhaust duct L22 is a pipe from the first-floor corridor exhaust fan outlet 42 to the first exhaust chamber 74 .
The first-floor living-side exhaust duct L23 is a pipe from the first-floor first living space exhaust fan outlet 45 to the first exhaust chamber 74 .
The first-floor side exhaust confluence duct L24 is a pipe from the first exhaust chamber 74 to the Y-shaped pipe 73. As shown in FIG.
The second floor storage space side exhaust duct L25 is a pipe from the second floor storage space exhaust fan outlet 51 to the second exhaust chamber 75 .
The second-floor corridor-side exhaust duct L26 is a pipe from the second-floor corridor exhaust fan outlet 53 to the second exhaust chamber 75 .
The second-floor side exhaust confluence duct L27 is a pipe from the second exhaust chamber 75 to the Y-shaped pipe 73 .
The all-exhaust joint duct L28 is a pipe from the Y-tube 73 to the ventilator 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 ventilator 3 ventilates the inside of the house 10 for 24 hours, and ventilates the house 10 both when the air conditioner 2 is operated and when it is stopped. When the air conditioner 2 is stopped, the cooling and heating of the air conditioner 2 are not performed, but the ventilation by the ventilation device 3 is performed by introducing the air passing through the inside of the air conditioner 2 into the house 10. done.

In the present embodiment, as an example of the amount of air introduced into the air conditioner 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). The amount of air sucked from inside the house 10 (the amount of air sucked by the first-floor circulation fan intake port 46 or the second-floor circulation fan intake port 55) is, for example, about 350 m ³ /h (Lube). be. As a result, the air conditioner indoor unit 21 cools the introduced air with the cooling function or warms it with the heating function, and supplies air with an air volume of about 500 m ³ /h (Lube) into the house 10 . Here, for example, the air sucked from inside the house 10 of about 350 m ³ /h (Lube) and introduced into the air conditioner 2 is circulated in the house 10 and cooled by the cooling function of the air conditioner 2. Then, it is warmed by the heating function and supplied to each of the predetermined spaces 113, 122, and 124 again.

The air conditioning maintenance structure 9 will be described.
The air-conditioning maintenance structure 9 is a structure for performing maintenance on the filters of the air-conditioning system 1 (first-floor filter 912, second-floor filter 922). Specifically, in the air conditioning system 1, the air conditioning maintenance structure 9 is provided in a circulation path for circulating the air sucked from the first floor circulation fan intake port 46 and the second floor circulation fan intake port 55 to the air conditioner 2. It is a structure that facilitates maintenance of the installed filters (first-floor side filter 912, second-floor side filter 922).

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

The first floor air conditioning maintenance structure 91 includes a first floor intake airtight space 911 (air intake airtight space), a first floor circulation intake duct L31 (maintenance duct), and a first floor circulation fan intake 46 (air intake ), a first floor side filter 912 (filter), and a first floor side maintenance door 913 (maintenance door).

The first-floor intake airtight space 911 utilizes the first-floor piping space 131 (a space in which a duct can be arranged) that is arranged between the first-floor first-floor plumbing space 111 and the first-floor corridor space 112 in the left-right direction. provided. The first-floor intake airtight space 911 includes the first-floor piping space 131 and extends vertically. A duct for sending air can be arranged in the space inside the first-floor piping space 131 . Even when the airtight space 911 for air intake is provided in the piping space 131 on the first floor, a duct for sending air is arranged in the airtight space 911 for air intake arranged in the piping space 131 on the first floor. It is possible.

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

The first-floor intake airtight space 911 is formed, for example, in a cylindrical shape extending in the vertical direction. By opening a first-floor-side maintenance door 913, which will be described later, the inside of the first-floor intake airtight space 911 can be cleaned. Configured. Since the airtight space 911 for air intake on the first floor side is configured using the piping space on the first floor side 131, it is formed in a cylindrical shape having an opening area larger than that of the duct. The airtight space 911 for air intake on the first floor side is sized so that, for example, a maintenance worker can use a cleaning tool to remove soot by opening a door 913 for maintenance on the first floor side, which will be described later. there is

A 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 conditioner 2 via the switching unit 8 and the common circulation intake duct L33.

On one side of the first-floor circulation intake duct L31, one end of the first-floor circulation intake duct L31 passes through the lower end of the first-floor intake airtight space 911 to open the first floor intake airtight space 911. is connected to the lower end of the first-floor intake airtight space 911 in an open state. One end of the first-floor circulation intake duct L31 opens upward inside the first-floor intake airtight space 911 . In this embodiment, the first-floor circulating intake duct L31 constitutes a maintenance duct, and a first-floor filter 912 is attached to the end opening upward inside the first-floor intake airtight space 911. It is

The first-floor circulation fan intake port 46 is arranged so as to communicate between the first-floor intake airtight space 911 and the underfloor space 114 in the house 10 . The first-floor circulation fan intake port 46 is arranged in the underfloor space 114 in the vicinity of the lowest part of the heat insulation section 18 in the house 10 as described above. The first-floor circulation fan intake port 46 sucks the air in the underfloor space 114 in order to circulate the air in the house 10 to the air conditioner 2 .

The first-floor filter 912 is arranged inside the first-floor intake airtight space 911 so as to cover the opening of the first-floor circulation intake duct L31 at the end on the first-floor intake airtight space 911 side. The first-floor filter 912 traps foreign matter such as dust contained in the air that flows through the first-floor intake airtight space 911 and into the first-floor circulation intake duct L31. The first-floor filter 912 is located at the end of the first-floor intake airtight space 911 side of the first-floor circulation intake duct L31 so that maintenance such as replacement can be performed with the first-floor maintenance door 913 opened. is installed in the opening of the

The first-floor maintenance door 913 is configured to be able to open and close the first-floor intake airtight space 911 , and is arranged below one side wall surface 112 a of the first-floor corridor space 112 . Since the first-floor maintenance door 913 is arranged below one side wall surface 112a of the first-floor corridor space 112, it is within reach and the maintenance worker can easily open and close the first-floor maintenance door 913. The first-floor-side maintenance door 913 is formed at a position and size that allows a maintenance worker to perform maintenance such as replacement of the first-floor-side filter 912 . In addition, the first-floor maintenance door 913 is formed at a position and size that allows a maintenance worker to clean the inside of the first-floor intake airtight space 911 .

In addition, the second floor air conditioning maintenance structure 92 includes a second floor intake airtight space 921 (air intake airtight space), a second floor circulation intake duct L32 (maintenance duct), and a second floor circulation fan intake port 55 ( air inlet), a second-floor-side filter 922 (filter), and a second-floor-side maintenance door 923 (maintenance door).

The second-floor intake airtight space 921 uses the second-floor piping space 133 (a space in which a duct can be arranged) that is arranged between the second-floor storage space 121 and the second-floor first living space 122 in the left-right direction. and is provided. The airtight space 921 for air intake on the second floor extends vertically including the piping space 133 on the second floor. A duct for sending air can be arranged in the space inside the second-floor piping space 133 . Even when the airtight space 921 for air intake on the second floor is provided in the piping space 133 on the second floor, a duct for sending air is arranged in the airtight space 921 for air intake on the second floor arranged in the piping space 133 on the second floor. It is possible. In this embodiment, the airtight space 921 for air intake on the second floor arranged in the piping space 133 on the second floor includes a second floor introduction duct L16, a second floor exhaust junction duct L27, a second floor storage space side exhaust A duct L25 is arranged to pass therethrough.

The second-floor intake airtight space 921 is formed to extend vertically, and extends from the upper end of the communication passage 126 formed below the second-floor piping space 133 to the lower end of the roof-side insulation line 181 . The airtight airtight space 921 for air intake on the second floor is configured to be airtight, and the air sucked by the airtight airtight space 921 for air intake on the second floor side, which is connected to the upper side, is sucked by the airtight airtight space 921 for air intake on the second floor. , toward the second-floor-side circulation intake duct L32 connected to the lower side.

The airtight space 921 for air intake on the second floor is formed, for example, in a cylindrical shape extending in the vertical direction. By opening a door 923 for maintenance on the second floor, which will be described later, the inside of the airtight space 921 for air intake on the second floor can be cleaned. Configured. Since the airtight space 921 for air intake on the second floor is constructed using the piping space 131 on the second floor, it is formed in a cylindrical shape having an opening area larger than that of the duct. The inside of the second-floor intake airtight space 921 is configured to have a size that enables a maintenance worker to remove soot, etc., using a cleaning tool, for example, by opening a later-described second-floor maintenance door 923. It is

A 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.

On one side of the second-floor side circulation intake duct L32, one end of the second-floor side circulation intake duct L32 passes through the lower end of the second-floor side intake airtight space 921 to open the second floor side intake airtight space 921. is connected to the lower end of the second-floor intake airtight space 921 in an open state. One end of the second-floor circulation intake duct L32 opens upward inside the second-floor 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 opening upward inside the second-floor-side intake airtight space 921. It is

The second-floor circulation fan intake port 55 is arranged so as to communicate the second-floor intake airtight space 921 and the attic space 125 in the house 10 . The second-floor circulation fan intake port 55 is arranged in the attic space 125 near the top of the heat insulating section 18 in the house 10 as described above. The second-floor circulation fan intake port 55 sucks the air in the attic space 125 in order to circulate the air in the house 10 to the air conditioner 2 .

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

The second-floor maintenance door 923 is configured to open and close the second-floor intake airtight space 921 , and is arranged below one side wall surface 122 a of the second-floor first living space 122 . Since the second-floor maintenance door 923 is arranged on the lower side of one side wall surface 122a of the second-floor first living space 122, it is within reach, and the maintenance worker can open and close the second-floor maintenance door 923. Cheap. In addition, the second floor maintenance door 923 is formed at a position and size that allows a maintenance worker to perform maintenance such as replacement of the second floor filter 922 . In addition, the second-floor maintenance door 923 is formed at a position and size that allows a maintenance worker to clean the inside of the second-floor intake airtight space 921 .

The first-floor air-conditioning maintenance structure 91 and second-floor air-conditioning maintenance structure 92 configured as described above facilitate the maintenance work of the filters (first-floor filter 912, second-floor filter 922) of the air-conditioning system 1. can be done.
Conventionally, in a configuration where a filter is attached to the air intake, if the air intake is placed at a high position or under the floor, maintenance work must be performed by climbing to a high position or looking under the floor. Maintenance such as filter replacement was difficult.
On the other hand, in the present invention, by opening the maintenance doors (1st floor side maintenance door 913, 2nd floor side maintenance door 923), the filters (1st floor side filter 912, 2nd floor side filter 922) Maintenance work such as replacement and cleaning of the inside of the airtight air intake space (first-floor airtight airtight space 911, second-floor airtight airtight space 921) can be easily performed.

Next, operation|movement of the air conditioning system 1 of this embodiment is demonstrated. A case of using the air conditioning system 1 of the present embodiment in winter and a case of using it in summer will be described.

First, the case of using the air conditioning system 1 in winter will be described.
When the air conditioning system 1 is used in winter, the heating function of the air conditioner 2 is operated while the ventilation function and heat exchange function of the ventilation device 3 are operated. Switch to floor side air suction state.

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

Specifically, in winter, it is difficult for the temperature of the air in the underfloor space 114 near the bottom of the heat insulating section 18 to warm up. , the cold air in the underfloor space 114 is sucked by the first-floor side circulation fan intake port 46 and introduced into the air conditioner 2 . In the present embodiment, the vicinity of the bottom of the heat insulation section 18 is preferably within the range of 1 m above the bottom of the heat insulation section 18, and within the range of 50 cm above the bottom of the heat insulation section 18. is more preferable. Conventionally, in the vicinity of the lowest part of the heat insulation section 18 in the house 10, even if the heating function is operated by the air conditioner 2, the air in the house 10 is difficult to warm in winter, and the air conditioner 2 is not effective. It is a place where

Then, the air conditioner 2 heats the air introduced from the ventilation device 3 and the air introduced through the first floor side circulation fan intake port 46 by switching the switching unit 8 to the first floor side air suction state. Heating is performed by function, and air is supplied to a predetermined space 113 through the air supply ports 43 and 44 on the first floor, and predetermined spaces 122 and 124 are supplied to the predetermined spaces 122 and 124 through the air supply ports 52 and 54 on the second floor. supply air to

In this embodiment, the first-floor circulation fan intake port 46 is arranged in the underfloor space 114 . The first-floor circulation fan intake port 46 arranged in the underfloor space 114 near the bottom of the heat insulation section 18 is heat-insulated so that the temperature does not rise easily when the heating function is activated by the air conditioner 2 in winter. Air in the underfloor space 114 near the bottom of the compartment 18 is sucked. Then, the cold air sucked by the first-floor side circulation fan intake port 46 is returned to the air conditioner 2, heated again by the heating function of the air conditioner 2, and supplied to each of the spaces 113, 122, and 124. FIG. In this way, the air conditioning system 1 can introduce the cold air in the house 10 and circulate the air while allowing the heating function of the air conditioner 2 to function.

Here, in the air conditioning system 1, when performing maintenance such as filter replacement in the circulation path of the air sucked by the first floor circulation fan intake port 46, the first floor circulation fan intake port 46 is provided in the underfloor space 114. Even if the 1st floor maintenance door 913 is opened, the 1st floor filter 912 is placed within reach, so the 1st floor filter 912 can be replaced by opening the 1st floor maintenance door 913. In addition, maintenance work such as cleaning the inside of the first-floor intake airtight space 911 can be easily performed.

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 cooling function of the air conditioner 2 is operated while the ventilation function and heat exchange function of the ventilation device 3 are operated, and the switching unit 8 is switched to the second floor side air suction state. .

Air outside the house 10 is introduced into the air conditioner 2 from the ventilator 3, and by switching the switching unit 8 to the second floor side air suction state, the air in the attic space 125 is introduced through the second floor side circulation fan intake port 55. is introduced. The air conditioner 2 cools the air introduced by the ventilation device 3 and the air introduced through the second-floor-side circulation fan intake port 55 using a cooling function to cool the air in each of the predetermined spaces 113, 122, and 124. supply.

Specifically, in summer, the temperature of the air in the attic space 125 near the top of the heat insulation section 18 is difficult to cool, so by switching the switching unit 8 to the second floor side air suction state, the dashed arrow in FIG. , the warm air in the attic space 125 is sucked by the second-floor-side circulation fan intake port 55 and introduced into the air conditioner 2 . In this embodiment, the vicinity of the top of the heat insulation section 18 is preferably within the range of 1 m below the bottom of the heat insulation section 18, and within the range of 50 cm below the bottom of the heat insulation section 18. is more preferable. In the vicinity of the uppermost part of the heat insulating section 18 in the house 10, it is conventionally said that the air in the house 10 is difficult to cool even if the cooling function of the air conditioner 2 is operated in summer, and the air conditioner 2 is not effective. It is a place where

Then, the air conditioner 2 cools the air introduced from the ventilation device 3 and the air introduced through the second floor side circulation fan intake port 55 by switching the switching unit 8 to the second floor side air suction state. Air is supplied to a predetermined space 113 through air supply ports 43 and 44 on the first floor, and predetermined spaces 122 and 124 are supplied through air supply ports 52 and 54 on the second floor. supply air to

In this embodiment, the second-floor circulation fan intake port 55 is arranged in the attic space 125 . The second-floor circulation fan intake port 55 arranged in the attic space 125 is the attic space near the top of the heat insulation section 18 where the temperature is difficult to drop and the cooling is difficult when the cooling function is activated by the air conditioner 2 in summer. Aspirate 125 air. Then, the warm air sucked by the second-floor circulation fan intake port 55 is returned to the air conditioner 2, cooled again by the cooling function of the air conditioner 2, and supplied to the spaces 113, 122, and 124. Thus, the cooling function of the air conditioner 2 can be operated while the warm air in the house 10 is introduced into the air conditioner 2 and the air is circulated.

Here, in the air conditioning system 1, when performing filter maintenance in the circulation path of the air sucked by the second-floor circulation fan intake port 55, the second-floor circulation fan intake port 55 is provided in the attic space 125. Also, by opening the second-floor maintenance door 923, maintenance work such as replacement of the second-floor filter 922 and cleaning of the inside of the second-floor intake airtight space 921 can be easily performed.

In the air conditioning system 1 described above, when heating in winter, the cold air in the underfloor space 114 near the bottom of the heat insulation section 18 is introduced into the air conditioning system 2, and the air conditioning system 2 warms the introduced air. Thus, each space 113, 122, 124 of the house 10 can be supplied with air. Also, when cooling in the summer, warm air from the attic space 125 near the top of the heat insulation section 18 is introduced into the air conditioner 2, and the air conditioner 2 cools the introduced air to cool each part of the house 10. Spaces 113, 122, 124 can be supplied with air. Therefore, by introducing cold air near the bottom of the heat insulation section 18 or warm air near the top of the heat insulation section 18 and circulating the air, the heating function or the cooling function of the air conditioner 2 is functioned, thereby increasing the amount of air. The temperature difference in the air inside the house 10 can be reduced while generating a flow.
Therefore, it is possible to adjust the temperature of the entire house 10 to a uniform temperature with a simple configuration. In particular, in a house 10 with high airtightness and high heat insulation performance, the air conditioning system 1 can be operated with power saving.
In addition, the air temperature in the entire house 10 can be adjusted to a uniform temperature while the inside of the house 10 is ventilated by the ventilation device 3 .

According to the air conditioning maintenance structure 9 of this embodiment described above, the following effects are obtained.
The first-floor air-conditioning maintenance structure 91 of the present embodiment includes an airtight first-floor intake airtight space 911 provided in the first-floor piping space 131 and one side opening into the first-floor intake airtight space 911. The first floor circulating air intake duct L31 connected to the airtight air intake space 911 on the first floor and connected to the air conditioner 2 on the other side, the airtight space 911 for air intake on the first floor, and the space in the house 10 are separated. The first-floor-side circulation fan intake port 46 arranged so as to communicate with the first-floor-side intake airtight space 911, the end portion of the first-floor-side circulation intake duct L31 on the first-floor-side intake airtight space 911 side. The 1st floor side filter 912 arranged to cover the opening of 1 A floor-side maintenance door 913 is provided. In addition, the second floor side air conditioning maintenance structure 92 is provided in the second floor side piping space 133 and has an airtight second floor side intake airtight space 921, and one side is opened in the second floor side intake airtight space 921. The second-floor circulation intake duct L32 connected to the second-floor intake airtight space 921 and connected to the air conditioner 2 on the other side communicates with the second-floor intake airtight space 921 and the space in the house 10. 2nd floor side circulation fan intake port 55 arranged as shown in FIG. The second floor side filter 922 arranged to cover the second floor side airtight space 921 for air intake can be opened and closed, and the second floor side filter 922 is arranged at a position where maintenance can be performed. A maintenance door 923 is provided.

Therefore, when the maintenance doors (1st floor maintenance door 913, 2nd floor maintenance door 923) are opened, the filters (1st floor filter 912, 2nd floor filter 922) are placed within reach. By opening the maintenance door (1st floor side maintenance door 913, 2nd floor side maintenance door 923), the filter (1st floor side filter 912, 2nd floor side filter 922) can be replaced or the airtight space for air intake (1st floor side Maintenance work such as cleaning the inside of the airtight space for air intake on the side 911 and the airtight space for air intake on the second floor 921) can be easily performed.

Further, in the present embodiment, the intake ports (first-floor circulation fan intake port 46, second-floor circulation fan intake port 55) suck air in order to circulate the air in the house 10 to the air conditioner 2. is the mouth. Therefore, in the configuration for circulating inside the house 10, replacement of filters (first floor side filter 912, second floor side filter 922), intake airtight space (first floor side intake airtight space 911, second floor side intake airtight space 921), maintenance work such as cleaning of the inside can be easily performed.

Further, in this embodiment, the circulation fan intake port 46 on the first floor is arranged in the underfloor space 114 , and the circulation fan intake port 55 on the second floor is arranged in the attic space 125 . When the filter is arranged in the underfloor space 114 or the attic space 125, maintenance work for replacing the filter is difficult because it is difficult to reach. On the other hand, according to the configuration of the present invention, by opening the maintenance doors (1st floor side maintenance door 913, 2nd floor side maintenance door 923), the filters (1st floor side filter 912, 2nd floor side filter 922) and maintenance work such as cleaning the airtight space for air intake (airtight space for air intake on the first floor side 911 and airtight space for air intake on the second floor side 921).

<Second embodiment>
Next, a second embodiment of the invention will be described. FIG. 2 is a diagram showing states during heating and cooling in a house 10A equipped with an air conditioning system 1A according to the second embodiment of the present invention.
10 A of houses of 2nd Embodiment differ in 18 A of heat insulation divisions compared with the house 10 of 1st Embodiment. In addition, in the second embodiment, the arrangement positions of the first-floor circulation fan intake port 46A and the second-floor circulation fan intake port 55A are the same as those of the first-floor circulation fan intake port 46 and the second-floor circulation fan intake port of the first embodiment. Differs from mouth 55 . In the second embodiment, the same reference numerals are given to the same configurations as in the first embodiment, and the description thereof is omitted. Note that FIG. 2 of the second embodiment also shows the flow of air during heating and cooling in one drawing, as in FIG. 1 of the first embodiment.

The heat insulation section 18A of the second embodiment does not have the roof side heat insulation line 181 arranged along the roof 13 of the first embodiment, and is arranged along the roof ceiling 15 on the upper side of the roof ceiling 15. It has a shed insulation line 183 . In addition, the heat insulation section 18A of the second embodiment has an outer heat insulation line 182A that extends vertically from the roof 13 to the floor 16 and has a shorter lower end than the outer wall side heat insulation line 182 of the first embodiment. The insulation section 18 A also has a floor side insulation line 184 that runs along the floor 16 below the floor 16 .

Further, the air conditioning system 1A of the second embodiment does not have the configuration related to the first floor side air conditioning maintenance structure 91 provided on the first floor of the first embodiment, and the second floor side air conditioning maintenance structure 92A of the second embodiment. is different from the configuration of the second floor side air conditioning maintenance structure 92 of the first embodiment.

In the second embodiment, the first-floor circulation fan intake port 46A is arranged in the vicinity of the floor 16 (finishing section) on the lower side of the first-floor piping space 131 on the first floor. The first-floor circulation fan intake port 46</b>A is arranged below one side wall surface 112 a of the first-floor corridor space 112 . A filter (not shown) is attached to the first-floor circulation fan intake port 46A, and since it is within reach, maintenance of the filter of the first-floor circulation fan intake port 46A can be easily performed. .

Regarding 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 to the ceiling surface of the second-floor first living space 122, and the second-floor circulation fan intake port 55A is arranged in the vicinity of the ceiling (finishing part) of the second-floor first living space 122 on the upper side of one side wall surface 122a of the second-floor first living space 122 (living space).

In the second embodiment, the second-floor circulation fan intake port 55A is arranged above the second-floor first living space 122 . When the filter is arranged on the upper side of the first living space 122 on the second floor, maintenance work for replacing the filter is difficult because it is difficult to reach. In contrast, according to the configuration of the present invention, by opening the second-floor maintenance door 923, maintenance work such as replacement of the second-floor filter 922 and cleaning of the inside of the second-floor intake airtight space 921A can be performed. can be easily done.

A preferred embodiment of the air-conditioning system of the present invention has been described above, but the present invention is not limited to the above-described embodiment and can be modified as appropriate.
For example, in the above-described embodiment, the air intake is an air intake for sucking air for circulating in the air conditioner 1, but the air intake is not limited to this, and the air intake is used for exhausting air to the outside by a ventilation device. may be used as an intake port for sucking the

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

Further, in the above-described embodiment, the air conditioning system 1 is configured with the ventilator 3, but the present invention is not limited to this, and may be configured without the ventilator 3. FIG.

Further, in the above-described embodiment, the ventilation system of the ventilation device 3 is a type 1 ventilation system in which both air supply and exhaust are performed by a ventilation fan (mechanical fan). (Mechanical fan) and natural air supply may be used as the third type ventilation system.

In the above-described embodiment, the first-floor circulation intake duct L31 (maintenance duct) and the second-floor circulation intake duct L32 (maintenance duct) are connected to each other through the switching unit 8 and the common circulation intake duct L33. 2, but is not limited to this. 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, 1A Air-conditioning system 2 Air-conditioning device 9 Air-conditioning maintenance structure 10, 10A House 46, 46A First-floor circulation fan intake (intake, first intake)
55, 55A 2nd floor side circulation fan intake (air intake, 2nd air intake)
91 1st floor side air conditioning maintenance structure 92 2nd floor side air conditioning maintenance structure 114 Underfloor space (underfloor)
125 Attic Space (Attic)
131 1st floor side piping space (space where ducts can be placed)
133 Second-floor piping space (space where ducts can be placed)
911 Airtight space for air intake on the first floor (airtight space for air intake)
912 1st floor side filter (filter)
913 1st floor maintenance door (maintenance door)
921 Airtight space for air intake on the second floor side (airtight space for air intake)
922 second 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 (4)

An air conditioning maintenance structure for performing maintenance of an air conditioning system including an air conditioner having one or more functions of a cooling function, a heating function, and a ventilation function,
an airtight space for air intake provided in the space where the duct can be arranged and having airtightness;
One side of the air conditioner is connected to the intake airtight space in an open state through the intake airtight space, and the other side is arranged outside the intake airtight space. a maintenance duct directly or indirectly connected;
an intake port disposed so as to communicate the airtight space for intake and a space in the house;
a filter arranged inside the intake airtight space so as to cover an opening of the maintenance duct on the end side of the intake airtight space;
a maintenance door configured to open and close the intake airtight space and arranged at a position where maintenance of the filter can be performed ;
The maintenance door is arranged on the lower side of the living space or the non-living space and at a position closer to the floor than the center between the ceiling and the floor in the vertical direction .
Air conditioning maintenance structure. The air intake is an air intake for sucking air in order to circulate the air in the house to the air conditioner,
The air conditioning maintenance structure according to claim 1. The air intake is arranged under the floor or in the attic, or on the upper side of the living space or non-living space.
The air conditioning maintenance structure according to claim 1 or 2. an air conditioning maintenance structure according to any one of claims 1 to 3;
and an air conditioner having one or more of a cooling function, a heating function, and a ventilation function.

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