JP6795470B2 - Air conditioning unit and buildings using it - Google Patents

Description

The present invention relates to an air conditioning unit for air-conditioning a plurality of spaces inside a building and a building using the air conditioning unit.

The following Patent Document 1 proposes an air conditioning unit for blowing air whose temperature has been adjusted by an air conditioner to each room of a building. In this air conditioning unit, a plurality of ducts for supplying temperature-controlled air to each living room are connected.

Japanese Unexamined Patent Publication No. 2016-099087

In the air-conditioning unit of Patent Document 1, the suction unit to which the temperature-controlled air is supplied is provided with a discharge unit capable of connecting a plurality of ducts. Since this discharge part is arranged facing the floor of the building, there is a problem that maintainability is lowered.

The present invention has been devised in view of the above circumstances, and a main object of the present invention is to provide an air conditioning unit capable of improving maintainability and a building using the air conditioning unit.

The present invention is an air-conditioning unit for air-conditioning a plurality of spaces inside a building, and includes a unit main body configured to be installed on the floor, and the unit main body includes an indoor unit of an air conditioner. A chamber to which the air-conditioned air is supplied by the indoor unit is provided, and the chamber supplies the air-conditioned air to the plurality of spaces at a position above the upper surface of the floor. It is characterized in that a plurality of connection ports to which the ducts of the above can be connected are provided.

In the air conditioning unit according to the present invention, the chamber has a box shape having a bottom surface above the top surface of the floor, and the connection port may be provided on the bottom surface side.

The air-conditioned unit according to the present invention may further include a blowing means for supplying the air-conditioned air to the chamber.

In the air conditioning unit according to the present invention, each connection port may be further provided with a damper for adjusting the air volume to the duct above the upper surface of the floor.

The present invention is a building in which the air conditioning unit according to any one of claims 1 to 4 is installed.

In the building according to the present invention, the duct may be arranged in the space below the floor where the air conditioning unit is installed.

In the air-conditioning unit of the present invention, in a chamber to which air-conditioned air is supplied by an indoor unit, ducts for supplying air-conditioned air to a plurality of spaces can be connected at positions above the upper surface of the floor. A plurality of connection ports are provided. As a result, in the air conditioning unit of the present invention, the duct can be easily attached to and detached from the connection port. Accordingly, the air-conditioning unit of the present invention can improve the maintainer Nsu properties.

It is sectional drawing which conceptually showed the building which installed the air-conditioning unit. It is a perspective view which shows an example of the arrangement state of an air conditioning unit. It is a perspective view which shows an example of the inside of an air conditioning unit. It is sectional drawing which looked at the air conditioning unit from the side. It is a side view which shows an example of the anti-vibration material of a unit body. It is sectional drawing which shows an example of a sound absorbing material. It is sectional drawing which shows an example of the vibration-proof material of a blowing means. It is sectional drawing which shows an example of a partition wall.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that each drawing is for enhancing the understanding of the content of the invention, and in addition to including exaggerated display, it is pointed out in advance that the scales and the like do not exactly match between the drawings.

FIG. 1 is a cross-sectional view conceptually showing a building 2 in which an air conditioning unit 1 is installed. FIG. 2 is a perspective view showing an example of the arrangement state of the air conditioning unit 1. The air-conditioning unit 1 of the present embodiment is for air-conditioning a plurality of spaces 3 provided inside the building 2. For example, the building 2 in which the air conditioning unit 1 is installed may be a house, a building, or the like. In order to enhance the air conditioning effect of the air conditioning unit 1, it is desirable that the building 2 has excellent heat insulating performance, light shielding (heat shielding) performance, and airtightness.

The space 3 of the present embodiment includes an underfloor space 4 and an above-floor space 5. In the present embodiment, the air conditioning unit 1 air-conditions the space 5 on the floor.

The underfloor space 4 is a space surrounded by the foundation 6, the ground 7, and the floor 8 on the first floor. The foundation 6 is provided with an opening 9 for taking in the outside air 17. The outside air 17 taken in from the opening 9 exchanges heat with the underground heat having little temperature change throughout the year through the ground 7. As a result, the underfloor space 4 can store 10 air that is relatively cool in the summer and relatively warm in the winter (hereinafter, may be simply referred to as “underfloor air”) 10 as compared with the outside air.

The above-floor space 5 is a space provided above the underfloor space 4. The above-floor space 5 of the present embodiment is divided into a plurality of living rooms 11 and non-living rooms (not shown) such as a washroom and a toilet. The living room 11 includes a living room 13 on the first floor and a living room 14 on the second floor. The floor space 5 is provided with, for example, an exhaust fan (not shown) that forcibly discharges at least a part of the air (hereinafter, may be simply referred to as “floor air”) 15 of the floor space 5 to the outside. May be done.

The air conditioning unit 1 includes a unit main body 21 configured to be installed on the floor 8. Further, the air conditioning unit 1 of the present embodiment includes an indoor unit 23 of the air conditioner 22 housed inside the unit main body 21.

FIG. 3 is a perspective view showing an example of the inside of the air conditioning unit 1. FIG. 4 is a cross-sectional view taken from the side surface of the air conditioning unit 1. As shown in FIG. 4, the air conditioner 22 is, for example, a general household separate air conditioner. The air conditioner 22 includes an indoor unit 23 and an outdoor unit (not shown) installed outside the building 2 as a set. The indoor unit 23 has a suction port 24 and an outlet 25. The suction port 24 is for taking air into a heat exchanger (not shown) inside the indoor unit 23. The air outlet 25 is for discharging air 18 (shown in FIG. 1) conditioned by a heat exchanger (hereinafter, may be simply referred to as “air-conditioned air”).

As shown in FIG. 1, the unit main body 21 of the present embodiment is installed on the floor 8 on the second floor, but is not limited to such an embodiment. The unit main body 21 may be installed on the floor 8 on the first floor, or may be installed on the floor 8 on the floor above the second floor, for example.

As shown in FIG. 2, in the unit main body 21 of the present embodiment, the rear surface 21a excluding the front side thereof and the left and right surfaces (left surface 21b, right surface 21c) are surrounded by adjacent partition walls 31. Here, in the present specification, the "adjacent partition wall 31" means a partition wall 31 installed within a distance L1 from each surface 21a to 21c of the unit main body 21 within a range of 1 to 100 mm. There is. A door 32 that can be opened and closed is provided on the front side of the unit main body 21 of the present embodiment. The door 32 is provided with an opening 35 for taking in the above-floor air 15 into the space 34.

As described above, the unit main body 21 of the present embodiment is arranged in the space 34 surrounded by the partition wall 31, the door 32, and the ceiling 33 (shown in FIG. 1) in the building 2 (shown in FIG. 1). Has been done. As a result, it is possible to suppress the noise of the unit main body 21 from being transmitted to the space 3 such as the living room 11.

As shown in FIGS. 3 and 4, the unit main body 21 is formed in a box shape having a plurality of spaces 40 inside the unit main body 21. The space 40 includes a first space 41, a second space 42, a third space 43, a fourth space 44, and a fifth space 45. Further, the unit main body 21 is configured to include the chamber 50. These first spaces 41 to 5th spaces 45 and the chamber 50 are divided by, for example, a frame member 51 and a face member 52 supported by the frame member 51.

The unit main body 21 of the present embodiment is provided with a vibration isolator 54 between the lower portion thereof and the floor 8. The anti-vibration material 54 of the present embodiment is provided on each leg 26 of the unit main body 21 formed of the frame material 51. FIG. 5 is a side view showing an example of the vibration isolator 54 of the unit main body 21.

The anti-vibration material 54 includes a first fixing portion 56, a second fixing portion 57, and a vibration absorbing material 58. A screw shaft 56a is provided on the first fixing portion 56. The screw shaft 56a is inserted into the hole 26a of the leg 26 and then fastened with a nut 59 or the like. As a result, the anti-vibration material 54 is fixed to the leg portion 26. On the other hand, the second fixing portion 57 is fixed to the upper surface of the floor 8 with a bolt 60 or the like. The vibration absorbing material 58 is arranged between the first fixing portion 56 and the second fixing portion 57.

Such a vibration isolator 54 can absorb the vibration of the unit body 21 generated during the operation of the indoor unit 23 shown in FIG. 3 and the ventilation means 77 described later by the vibration absorbing material 58. Therefore, the vibration isolator 54 can prevent the vibration of the unit body 21 from being transmitted (solid propagation) to the floor 8.

The vibration absorbing material 58 can be appropriately selected. As the vibration absorbing material 58 of the present embodiment, for example, a gel-like material using silicone as a main raw material is adopted. Such a vibration absorbing material 58 suppresses vibration (for example, 25Hz to 63Hz) in the low frequency band of the unit body 21 generated during operation of the indoor unit 23 shown in FIG. 3 or the blowing means 77 or the like. The performance can be demonstrated effectively.

As shown in FIGS. 3 and 4, the first space 41 is divided above the second space 42. The first space 41 of the present embodiment is formed in a horizontally long rectangular box shape when viewed from the front. The indoor unit 23 of the air conditioner 22 is housed in the first space 41.

As shown in FIGS. 2 and 4, it is desirable that the front member 61 that divides the front side of the first space 41 is formed as a door that can be opened and closed. As a result, the unit main body 21 can improve the maintainability of the indoor unit 23.

The upper surface member 62 that divides the upper side of the first space 41 is provided with an air supply port 63 and an outside air intake port 64. The air supply port 63 and the outside air intake port 64 are provided on the suction port 24 side of the indoor unit 23 (above the suction port 24 in this embodiment).

As shown in FIG. 2, the air supply port 63 is provided on the upper part and the front side of the unit main body 21. The air supply port 63 of the present embodiment is formed in a horizontally long rectangular shape in a plan view. As shown in FIG. 4, the air supply port 63 communicates between the space 34 (shown in FIG. 2) and the first space 41. As a result, the air supply port 63 supplies the floor air 15 (shown in FIG. 1) taken into the space 34 from the opening 35 (shown in FIG. 2) of the door 32 to the suction port 24 of the indoor unit 23. be able to.

A sound absorbing material 66 is arranged at the air supply port 63. The sound absorbing material 66 is for absorbing the vibration of air, and various known materials such as glass wool and rock wool are used. As the sound absorbing material 66 of the present embodiment, a material obtained by forming polyester fibers into a board shape is used.

FIG. 6 is a cross-sectional view showing an example of the sound absorbing material 66. The sound absorbing material 66 of the present embodiment includes a first sound absorbing material 67 and a second sound absorbing material 68.

The first sound absorbing material 67 is arranged in the first space 41. The first sound absorbing material 67 of the present embodiment includes the first piece 71 and the second piece 72.

The first piece 71 extends downward from the upper surface member 62 of the first space 41 on the rear side of the air supply port 63. The second piece 72 extends from the lower end of the first piece 71 to the front side of the unit main body 21. The second piece 72 of the present embodiment blocks at least a part above the suction port 24 of the indoor unit 23 and at least a part below the air supply port 63.

The first sound absorbing material 67 is formed in an L-shaped cross section by the first piece 71 and the second piece 72. Such a first sound absorbing material 67 can extend a path 69 from the indoor unit 23 to the air supply port 63 of the first space 41. Further, the first sound absorbing material 67 is provided with side pieces 70, 70 covering both sides of the first piece 71 and the second piece 72.

The second sound absorbing material 68 is arranged in the space 34. The second sound absorbing material 68 of the present embodiment includes the first piece 73 and the second piece 74.

The first piece 73 extends upward from the upper surface member 62 of the first space 41 on the front side of the air supply port 63. The first piece 73 of the present embodiment blocks at least a part of the rear side of the opening 35 of the door 32 in the front-rear direction of the unit main body 21. The second piece 74 extends from the upper end of the first piece 73 to the rear side of the unit main body 21. The second piece 74 of the present embodiment blocks at least a part above the air supply port 63.

The second sound absorbing material 68 is formed in an L-shaped cross section by the first piece 73 and the second piece 74. Such a second sound absorbing material 68 can extend a path 69 from the air supply port 63 of the first space 41 to the opening 35 of the door 32. Further, the second sound absorbing material 68 is provided with side pieces 75, 75 that cover both sides of the first piece 73 and the second piece 74.

With these first sound absorbing material 67 and second sound absorbing material 68, the sound absorbing material 66 of the present embodiment bends and extends the path 69 from the indoor unit 23 to the opening 35 of the door 32 in an S shape. Can be done. As a result, the sound absorbing material 66 can effectively absorb the noise (vibration of air) of the indoor unit 23, which tends to leak from the air supply port 63 to the outside (living room 11) of the unit main body 21, and thus the inside of the living room 11. Helps improve the quietness of the.

Since the first sound absorbing material 67 of the present embodiment is arranged in the first space 41 in which the indoor unit 23 is housed, the noise of the indoor unit 23 can be effectively absorbed. On the other hand, since the first piece 73 of the second sound absorbing material 68 extends upward from the upper surface material 62 of the first space 41 on the front side of the air supply port 63, it is possible to effectively prevent the noise leakage of the indoor unit 23. Can be done.

A first core material 53 for maintaining its shape may be fixed to the first sound absorbing material 67. The first core material 53 of the present embodiment is formed of a plate material such as metal or resin. The first sound absorbing material 67 of the present embodiment is arranged on the indoor unit 23 side with respect to the first core material 53. As a result, the first sound absorbing material 67 can effectively absorb the noise of the indoor unit 23.

The second core material 55 may be fixed to the second sound absorbing material 68 in the same manner as the first sound absorbing material 67. The second sound absorbing material 68 of the present embodiment is arranged on the air supply port 63 side with respect to the second core material 55. As a result, the second sound absorbing material 68 can effectively absorb the noise of the indoor unit 23 leaking from the air supply port 63.

In order to effectively prevent noise leakage from the indoor unit 23, the front end 67t of the first sound absorbing material 67 (the front end of the second piece 72) is the rear end 68t of the second sound absorbing material 68 (in the front-rear direction of the unit body 21). It may be located in front of the rear end of the second piece 74). As a result, the path 69 from the suction port 24 of the indoor unit 23 to the opening 35 of the door 32 can be effectively extended, so that the noise of the indoor unit 23 can be effectively absorbed.

In order to effectively prevent the leakage of noise from the indoor unit 23, it is desirable that the sound absorbing member 76 is arranged in the space 34 in which the unit main body 21 is arranged. The sound absorbing member 76 of the present embodiment is arranged on the partition wall 31 and the ceiling 33 as shown in FIGS. 2 and 6. As the sound absorbing member 76, the same material as the sound absorbing material 66 can be adopted. As a result, the sound absorbing member 76 can absorb the noise of the indoor unit 23 while suppressing the reflection of the noise of the indoor unit 23 in the space 34, so that the quietness in the living room 11 can be further improved.

As shown in FIG. 4, the outside air intake port 64 is provided on the rear side of the air supply port 63. As shown in FIGS. 1 and 4, a duct 80 that communicates the first space 41 and the underfloor space 4 is connected to the outside air intake port 64. An outside air supply fan 81 (shown in FIG. 1) for sending the underfloor air 10 (outside air 17) to the outside air intake port 64 side is connected to the end of the duct 80 on the underfloor space 4 side. By operating the outside air supply fan 81, the outside air intake port 64 can supply the underfloor air 10 (outside air 17) to the suction port 24 of the indoor unit 23.

As shown in FIGS. 3 and 4, the lower surface member 83 that divides the lower side of the first space 41 is provided with an opening 84 that communicates the first space 41 and the second space 42. The opening 84 is provided below the air outlet 25 of the indoor unit 23. As a result, the unit main body 21 can supply the conditioned air 18 discharged from the air outlet 25 to the second space 42 through the opening 84.

The second space 42 is divided above the third space 43. The second space 42 of the present embodiment is formed in a horizontally long rectangular box shape when viewed from the front. The filter 85 is housed in the second space 42.

The filter 85 is for purifying the conditioned air 18 supplied from the first space 41. As shown in FIG. 3, the filter 85 of the present embodiment is formed in a plate shape and is bent in a zigzag shape in the vertical direction. Such a filter 85 can effectively increase the filtration area for the conditioned air 18 passing through the second space 42 in the vertical direction. The filter 85 can be appropriately selected. As the filter 85, for example, it is desirable that a HEPA (High Efficiency Particulate Air) filter, a photocatalytic filter, an activated carbon deodorizing filter, an electrostatic precipitator filter, or the like is arranged alone or in combination.

As shown in FIGS. 2 and 4, the front member 87 that divides the front side of the second space 42 is preferably formed as a door that can be opened and closed. As a result, the unit main body 21 can easily install and replace the filter 85, so that the maintainability can be improved.

As shown in FIGS. 3 and 4, the lower surface member 88 that divides the lower side of the second space 42 is provided with an opening 89 that communicates the second space 42 and the third space 43. The opening 89 is provided below the filter 85. As a result, the unit main body 21 can supply the conditioned air 18 purified by the filter 85 to the third space 43 through the opening 89.

The third space 43 is divided into the upper side of the chamber 50 and the front side of the fourth space 44. The third space 43 of the present embodiment is formed in a horizontally long rectangular box shape when viewed from the front.

As shown in FIG. 3, the third space 43 of the present embodiment is divided into two spaces in the width direction of the unit main body 21. The third space 43 is configured to include one third space 43A and the other third space 43B. The conditioned air 18 purified by the filter 85 is supplied to the third spaces 43A and 43B, respectively.

The rear surface material 90 that divides the rear side of the third space 43 includes an opening 91 (shown in FIG. 4) that communicates between the third space 43A and the fourth space 44, and the other third space. An opening 92 (shown in FIG. 4) that communicates between the 43B and the fourth space 44 is provided.

As shown in FIGS. 3 and 4, the fourth space 44 is divided into the rear side of the first space 41, the second space 42, and the third space 43, and the upper side of the chamber 50. The fourth space 44 of the present embodiment is formed in the shape of a vertically long rectangular box when viewed from the front.

The lower surface member 93 that divides the lower side of the fourth space 44 is provided with an opening 94 that communicates between the fourth space 44 and the chamber 50. Further, in the fourth space 44, a blowing means 77 for supplying the purified conditioned air 18 to the outside of the unit main body 21 (the space above the floor 5 shown in FIG. 1) is arranged.

As shown in FIGS. 1 and 3, the blower means 77 of the present embodiment includes a first blower means 78 and a second blower means 79. A sirocco fan or the like is adopted as the first blowing means 78 and the second blowing means 79 of the present embodiment, but the present invention is not limited to such a mode.

The first blowing means 78 is for supplying the conditioned air 18 supplied to the third space 43A to the chamber 50. The suction port of the first blower means 78 is connected to the opening 91 (shown in FIG. 4) of one of the third spaces 43A. The outlet of the first blower means 78 is connected to the opening 94 (shown in FIGS. 3 and 4) of the fourth space 44. As a result, the first blowing means 78 can supply the conditioned air 18 supplied to the third space 43A to the chamber 50.

The second blowing means 79 supplies the conditioned air 18 supplied to the other third space 43B to the branch portion 97 (shown in FIG. 1) provided outside the unit main body 21 (for example, the back of the cabin 96). It is for doing. The branch portion 97 of the present embodiment is a chamber for branching and supplying the conditioned air 18 to a plurality of spaces (in this embodiment, each living room 14 on the second floor) 3. A duct 98 is connected between the branch portion 97 and each space 3.

The suction port of the second blowing means 79 is connected to the opening 92 (shown in FIG. 4) of the other third space 43B. The outlet of the second blowing means 79 is connected to a duct 99 communicating between the second blowing means 79 and the branch portion 97 via an air flow path (square duct) 82 formed in the fourth space 44. Has been done. As a result, the second blowing means 79 can supply the conditioned air 18 supplied to the other third space 43B to the branch portion 97.

The blower means 77 of the present embodiment is fixed to the unit main body 21 via the vibration isolator 110 (shown in FIG. 3). The anti-vibration material 110 is fixed to, for example, at the four corners of each of the blower means 77 (the first blower means 78 and the second blower means 79). FIG. 7 is a cross-sectional view showing an example of the vibration isolator 110 of the blower means 77.

The vibration-proof material 110 of the present embodiment includes the first fixing portion 111, the second fixing portion 112, and the vibration absorbing material 113, similarly to the vibration-proof material 54 provided in the lower part of the unit main body 21 described above. It is configured. A screw shaft 115 is provided on the first fixing portion 111. The screw shaft 115 is inserted into the hole 117 of the bracket 116 for supporting the blower means 77, and then fastened with a nut 118 or the like. As a result, the anti-vibration material 110 and the blower means 77 are fixed. The second fixing portion 112 is provided with a screw shaft 119. The screw shaft 119 is inserted into a hole 120 provided in the lower surface member 93 of the fourth space 44, and then fastened with a nut 121 or the like. As a result, the anti-vibration material 110 and the lower surface material 93 are fixed. The vibration absorbing material 113 is arranged between the first fixing portion 111 and the second fixing portion 112. As the vibration absorbing material 113, it is desirable that the same material as the vibration absorbing material 58 (shown in FIG. 5) of the vibration isolating material 54 is adopted.

In such a vibration isolator 110, the vibration absorber 113 can absorb the vibration in the low frequency band generated during the operation of the blower means 77. Therefore, the vibration isolator 110 can prevent the vibration of the blower means 77 from being transmitted (solid propagation) to the unit body 21.

As shown in FIG. 3, the fifth space 45 is divided into the lower side of the first space 41 and the side of the second space 42 and the third space 43 (one side in the width direction of the unit main body 21). ing. The fifth space 45 of the present embodiment is formed in the shape of a vertically long rectangular box when viewed from the front.

A control device (not shown) for controlling the air conditioner 22 and the blowing means 77 is housed in the fifth space 45 of the present embodiment. Further, the front member 101 (shown in FIG. 2) that divides the front side of the fifth space 45 is provided with a switch 102 (shown in FIG. 2) for switching between operation and stop of the air conditioner 22, the blowing means 77, and the like. ing. In this way, since the control device and the like are housed in the fifth space 45 of the air conditioning unit 1, it is possible to prevent the unit main body 21 from becoming large and the structure from becoming complicated. Therefore, the air conditioning unit 1 can improve maintainability.

As shown in FIGS. 3 and 4, the chamber 50 is divided into a third space 43 and a lower side of the fourth space 44. The chamber 50 of the present embodiment is formed in a horizontally long rectangular box shape when viewed from the front. The chamber 50 has its bottom surface 103 at a position above the top surface of the floor 8.

The chamber 50 is provided with a plurality of connection ports 49 at positions above the upper surface of the floor 8. Each connection port 49 is provided on the bottom surface 103 side. Each connection port 49 is formed so that ducts 48 for supplying conditioned air 18 can be connected to a plurality of spaces 3 (in this embodiment, each living room 13 on the first floor) shown in FIG. One end of the duct 48 is connected to the connection port 49. The other end of the duct 48 is connected to the space 3. At least a part of the duct 48 of the present embodiment is arranged in the space 107 (shown in FIG. 1) below the floor 8 where the air conditioning unit 1 is installed.

The chamber 50 provided with such a plurality of connection ports 49 can distribute and supply the conditioned air 18 supplied from the first blowing means 78 to the plurality of spaces 3. Therefore, the air-conditioning unit 1 of the present embodiment does not need to be provided with the blowing means 77 for each connection port 49 as in Patent Document 1, and one blowing means 77 connected to the chamber 50 (in the present embodiment). , The first blowing means 78) shown in FIG. 3 is sufficient. Therefore, the air conditioning unit 1 of the present embodiment can reduce the running cost while preventing the unit main body 21 from becoming large in size.

Since the air conditioning unit 1 of the present embodiment is provided with the connection port 49 at a position above the upper surface of the floor 8, the duct 48 arranged in the space 107 (shown in FIG. 1) in the space 5 on the floor. Can be easily attached to and detached from the connection port 49. Therefore, in the air conditioning unit 1 of the present invention, for example, in order to attach / detach the duct 48 to / from the connection port (not shown) provided facing the floor 8 as in Patent Document 1, for example, the space 107 below the floor 8. There is no need to work within (shown in FIG. 1). Therefore, the air conditioning unit 1 can improve maintainability and workability.

In order to effectively exert such an action, the height H1 from the upper surface of the floor 8 to the connection port 49 is preferably 300 to 600 mm. If the height H1 is less than 300 mm, the above action may not be sufficiently exerted. Further, if the height H1 exceeds 600 mm, the unit main body 21 may become larger than necessary.

The connection port 49 of the present embodiment is provided with a damper 108 for adjusting the air volume to the duct 48 (space 3). The opening and closing of the damper 108 is controlled by, for example, a control means (not shown). As a result, the air conditioning unit 1 can adjust the supply amount of the air conditioning air 18 to the space 3. The damper 108 of the present embodiment is provided above the upper surface of the floor 8. As a result, the air conditioning unit 1 of the present embodiment can easily maintain the damper 108.

Next, the operation of the air conditioning unit 1 of the present embodiment will be described. As shown in FIGS. 1 and 4, floor air 15 is supplied to the first space 41 of the unit main body 21 through the opening 35 (shown in FIGS. 2 and 6) of the door 32. Further, the underfloor air 10 (outside air 17) is supplied to the first space 41 through the outside air intake port 64 by the operation of the outside air supply fan 81 (shown in FIG. 1). As a result, the air-fuel mixture of the floor air 15 and the outside air 17 is supplied to the suction port 24 of the indoor unit 23 and is air-conditioned. The conditioned air 18 discharged from the air outlet 25 of the indoor unit 23 is supplied to the second space 42 through the opening 84 of the lower surface member 83 of the first space 41.

The second space 42 and the third spaces 43A and 43B are maintained at a negative pressure by the operation of the blower means 77 (the first blower means 78 and the second blower means 79 shown in FIGS. 1 and 3). As a result, the air conditioning unit 1 passes the air conditioning air 18 supplied to the second space 42 through the filter 85 and the opening 89 of the lower surface member 88 of the second space 42, in the third spaces 43A and 43B (FIG. 3) can be supplied respectively. As a result, the conditioned air 18 supplied to the third spaces 43A and 43B is purified by the filter 85.

The conditioned air 18 supplied to the one third space 43A (shown in FIG. 3) is supplied to the chamber 50 via the first blowing means 78. The conditioned air 18 supplied to the chamber 50 passes through a duct 48 connected to each connection port 49, and as shown in FIG. 1, a plurality of spaces 3 (in this embodiment, each living room 13 on the first floor). Is supplied to.

The conditioned air 18 supplied to the other third space 43B (shown in FIG. 3) has a branch portion 97 (FIG. 1) via the second blowing means 79, the air flow path (square duct) 82, and the duct 99. Is supplied to). As shown in FIG. 1, the conditioned air 18 supplied to the branch portion 97 is supplied to a plurality of spaces 3 (in this embodiment, each living room 14 on the second floor) via a duct 98.

As described above, according to the air-conditioning unit 1 of the present embodiment, the air-conditioned air 18 obtained by air-conditioning the mixture of the floor air 15 and the outside air 17 is purified by the filter 85, and the plurality of spaces 3 (1 in the present embodiment) It can be supplied to the living room 13 on the floor and the living room 14) on the second floor. Therefore, since the building 2 in which the air conditioning unit 1 of the present embodiment is installed can be air-conditioned while circulating the air on the floor 15, the load on the air conditioner 22 can be reduced.

When the air conditioner 22 is stopped, the air-fuel mixture of the floor air 15 and the outside air 17 is purified by the filter 85, and a plurality of spaces 3 (in this embodiment, the living room 13 on the first floor and the living room on the second floor) are purified. 14) can be supplied. As a result, the building 2 in which the air conditioning unit 1 of the present embodiment is installed can circulate the air in the floor space 5, so that the temperature change in the floor space 5 can be minimized. Further, the outside air 17 of the present embodiment is the underfloor air 10 that has been heat-exchanged with the heat in the ground in the underfloor space 4. Therefore, in the present embodiment, the space 3 can be comfortably ventilated as compared with the case where the outside air 17 is directly supplied.

As described above, the air conditioning unit 1 of the present embodiment can absorb the noise of the indoor unit 23 that easily leaks from the air supply port 63 by the sound absorbing material 66 shown in FIG. Further, in the air conditioning unit 1 of the present embodiment, the vibration isolator 54 (shown in FIG. 5) at the lower part of the unit main body 21 causes the unit main body 21 generated during the operation of the indoor unit 23 and the blowing means 77 shown in FIG. It is possible to prevent the vibration from being transmitted to the floor 8 (solid propagation). Further, the partition wall 31 (shown in FIG. 2) surrounding the unit main body 21 can prevent the noise of the unit main body 21 from being transmitted to the space 3 such as the living room 11. Therefore, in the building 2 in which the air conditioning unit 1 is arranged, the quietness in the living room 11 can be effectively improved by the synergistic effect of the sound absorbing material 66, the vibration isolating material 54, and the partition wall 31.

Further, in the air conditioning unit 1 of the present embodiment, the vibration isolator 110 shown in FIG. 7 can prevent the vibration of the blowing means 77 from being transmitted (solid propagating) to the unit main body 21. As a result, the vibration of the unit main body 21 can be reduced, so that the quietness in the living room 11 can be further improved.

In order to further improve the quietness in the living room 11, the partition wall 31 (shown in FIG. 2) surrounding the unit main body 21 may be configured as a sound insulation wall. FIG. 8 is a cross-sectional view showing an example of the partition wall 31.

A sound absorbing material 36 and a damping material 37 are arranged inside the partition wall (sound insulation wall) 31 of the present embodiment. The sound absorbing material 36 and the damping material 37 are arranged so as to be overlapped in the thickness direction of the partition wall 31, and are covered with a pair of decorative materials 38, 38 such as gypsum board, for example. The sound absorbing material 36 of the present embodiment is arranged on the air conditioning unit 1 side with respect to the vibration damping material 37.

As the sound absorbing material 36, glass wool, rock wool, or the like is appropriately selected as in the conventional case. Rock wool is adopted as the sound absorbing material 36 of the present embodiment. As the vibration damping material 37, an asphalt-based vibration damping sheet, a rubber-based vibration damping sheet, or the like is appropriately selected as in the conventional case. An asphalt-based vibration damping sheet is used for the vibration damping material 37 of the present embodiment. Such a damping material 37 has a specific gravity of about 2 to 6 times (in this embodiment, 3 times) that of the gypsum board (decorative material 38). In order to hold such a damping material 37 having a large specific gravity, a reinforcing material (for example, wooden plywood) 39 for fixing the damping material 37 is arranged inside the decorative material 38 on the partition wall 31. It is desirable to be done.

The partition wall 31 can absorb noise in the middle and high frequency bands (for example, 500 Hz to 8 KHz) transmitted from the unit main body 21 by the sound absorbing material 36. Further, the partition wall 31 can absorb the vibration generated by receiving the noise in the low frequency band by the vibration damping material 37. Therefore, the partition wall 31 of the present embodiment is useful for further improving the quietness in the living room 11.

In order to effectively absorb the vibration of the partition wall 31, it is desirable that, for example, a reinforcing material 47 made of woody plywood is arranged between the sound absorbing material 36 and the decorative material 38. Since such a reinforcing material 47 can absorb the vibration of the decorative material 38 on the air conditioning unit 1 side generated by receiving the noise in the low frequency band, it is useful for further improving the quietness in the living room 11. ..

Although the particularly preferable embodiments of the present invention have been described in detail above, the present invention is not limited to the illustrated embodiments and can be modified into various embodiments.

1 Air conditioning unit 8 Floor 21 Unit body 22 Air conditioner 23 Indoor unit 48 Duct 49 Connection port 50 Chamber

Claims (6)

An air conditioning unit for air conditioning multiple spaces inside a building.
It has a unit body that can be installed on the floor.
The unit body is provided with an indoor unit of an air conditioner and a chamber to which air conditioned by the indoor unit is supplied.
The chamber is provided at a position above the upper surface of the floor with a plurality of connection ports to which ducts for supplying the conditioned air can be connected to the plurality of spaces .
Each connection port is further provided with a damper for adjusting the air volume to the duct above the upper surface of the floor.
Air conditioning unit.
The chamber is box-shaped with a bottom surface above the top surface of the floor.
The connection port is provided on the bottom surface side.
The air conditioning unit according to claim 1. The air-conditioned unit according to claim 1 or 2, further comprising a blowing means for supplying the conditioned air to the chamber. The unit body has a first space in which the indoor unit is housed and
A second space is provided in which a filter for purifying the conditioned air discharged from the indoor unit is housed.
The front material that divides the front side of the second space is formed as a door that can be opened and closed .
The air conditioning unit according to any one of claims 1 to 3.
A building in which the air conditioning unit according to any one of claims 1 to 4 is installed. The building according to claim 5, wherein the duct is arranged in a space below the floor on which the air conditioning unit is installed.

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