JPH07301454A - Combined air conditioning system for underfloor air conditioning and perimeter air conditioning - Google Patents

Abstract

PURPOSE:To reduce a pressure loss and to facilitate uniform underfloor and perimeter pressure distributions. CONSTITUTION:An air conditioned air introducing unit 2 in which air conditioned air from an air conditioner 1 is introduced is provided under a floor. The unit 2 is formed of a chamber 2A having a bottom area larger than that of the conditioner 1 installed on an upper surface. The discharge port 4 of the chamber 2A communicates with an underfloor space from an underfloor side opening, and communicates with a perimeter side opening from a perimeter air conditioning duct.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combined air conditioning system for underfloor air conditioning and perimeter air conditioning, and more particularly to a structure of an air conditioning air introduction section for supplying air conditioning air to an underfloor space and a perimeter section.

[0002]

2. Description of the Related Art Conventionally, as an underfloor air conditioning system,
A method is known in which the underfloor of the access floor is used as an air-conditioning area, and the air-conditioning air from the air conditioner is discharged into this air-conditioning area to discharge hot air or cold air into the living room from the air outlet provided on the access floor. . In other words, by constructing the floor material in a state of floating from the floor slab, the underfloor space is used as a wiring space for power lines, signal lines, etc., and the underfloor space, which is the wiring space at this time, is also used as a ventilation duct. It is an underfloor air conditioning system that utilizes the air-conditioning air discharged from the air conditioner to the underfloor space through a plurality of air outlets formed in appropriate places on the floor material, for example, an underfloor air conditioning system (eg, Kaikaihei 5-69549). Japanese Patent Laid-Open No. 3-10117, Japanese Patent Laid-Open No. 4-110560, Japanese Patent Laid-Open No. 4-11
No. 0561, JP-A-4-208352).

34 and 35 show an example of an air conditioner for underfloor air conditioning. The underfloor duct 200 is connected to a portion facing the underfloor space 18 while being fitted into the opening 12 provided in the floor material 6. The chamber 2 is provided and the air conditioner 1 is installed on the chamber 2. At this time, the chamber 2 has the same size as the air conditioner 1. In the figure, 5 is a partition surrounding the air conditioner 1, 9 is storage equipment installed adjacently, and 7 is a return port for returning the conditioned air through a suction port provided in the ceiling material 8 and the space above the ceiling.

In a conventional perimeter air conditioning system, a perimeter is installed on the access floor in the perimeter and the perimeter is used as an air supply duct to blow out the conditioned air from the air conditioner to the perimeter. The peri-counter air-conditioning system is known.

[0005]

However, in the conventional underfloor air conditioning system, the conditioned air of the air conditioner 1 is discharged from the chamber 2 through the underfloor duct 200 into the space below the floor material 6. Since there is a pressure loss due to the underfloor duct 200, the external static pressure of the air conditioner 1 must be sufficiently large in consideration of this loss. Further, since the opening width of the underfloor duct 200 is limited by the width dimension of the chamber 2, it is difficult to make the underfloor pressure distribution uniform.
There is a problem that the underfloor pressure distribution cannot be made uniform unless a separate air distribution plate is provided under the floor to control the air flow.

On the other hand, in the conventional peri-counter air-conditioning system, since the peri-counter itself is used as an air supply duct, the clearance between the peri-counter and the floor surface or the clearance between the peri-counter and the wall surface may cause air leakage. Become. Moreover, since the static pressure decreases as the distance between the discharge port of the peri-counter and the air conditioner increases, the reach distance and discharge speed of the conditioned air blown out to the perimeter part will change to the distance between the peri-counter and the air conditioner. Since the static pressure distribution in the perimeter portion becomes non-uniform, the air-conditioning range becomes uneven and the peri-counter air-conditioning efficiency decreases. Furthermore, since additional members such as ducts and peri-counters are required, the cost is high and the workability is poor, and when ducts are used, the conditioned air is proportional to the distance from the air conditioner during cooling. There is also a problem that a uniform warm environment cannot be obtained because the temperature easily rises.

The present invention has been made in view of the above points, and an object thereof is to provide an underfloor air conditioner which has a low pressure loss and facilitates uniformization of the underfloor air conditioner and the pressure distribution of each of the perimeter parts. Another object of the present invention is to provide under-floor air conditioning and perimeter air conditioning without using ducts, chambers, etc., and to provide a more uniform pressure distribution. An object is to provide a combined air conditioning system of underfloor air conditioning and perimeter air conditioning.

[0008]

SUMMARY OF THE INVENTION In the present invention, however, an conditioned air introduction part 2 into which conditioned air from an air conditioner 1 is introduced is provided under the floor, and the conditioned air introduction part 2 is opened to an underfloor space 18. It is characterized in that an underfloor side opening 14 and a perimeter side opening 17 opening to the perimeter portion 30 of the building are formed respectively.

[0009]

According to the present invention, the conditioned air introduction part 2 for introducing conditioned air from the air conditioner 1 is provided under the floor, and the underfloor side opening 14 opening to the underfloor space 18 in the conditioned air introduction part 2 and the building Since the perimeter side opening 17 opening to the perimeter portion 30 is formed, it is possible to perform underfloor air conditioning and perimeter air conditioning with less pressure loss by utilizing the underfloor.
Since a large space for the conditioned air introducing section 2 can be secured, it is easy to make the pressure distribution in the underfloor space 18 and the perimeter section 30 uniform.

[0010]

【Example】

(Embodiment 1) FIGS. 1 to 5 show a first embodiment of the present invention, in which an conditioned air introduction part 2 into which conditioned air from an air conditioner 1 is introduced is composed of a chamber 2A provided under the floor. The air conditioner 1 is installed on the upper surface of the chamber 2A. The chamber 2A has a bottom area larger than the bottom area of the air conditioner 1, an opening 3 for connection with the air conditioner 1 is provided on the upper surface thereof, and the discharge port is almost full width at the lower peripheral surface. 4 are provided. The partition 5 surrounding the air conditioner 1 is sized so that the lower end thereof fits into the upper portion of the chamber 2A.

Then, the lower part of the chamber 2A is fitted into the opening 12 provided in the floor member 6 which is installed so as to be floated from the floor slab, and the air conditioner 1 is installed on the lower part of the chamber 2A and the lower part of the partition 5 is surrounded by the partition 5. Is connected to the outer wall of the chamber 2A, and the conditioned air sent from the air conditioner 1 is discharged into the underfloor space 18 through the wide discharge port 4 that opens under the floor in the chamber 2A through the inside of the chamber 2A. It is supplied from the air conditioning outlet of the floor material 6 into the living room. 7 in FIG. 1 is an air conditioner 1.
A return port that is provided at the top and opens at the back of the ceiling,
8 is a ceiling material.

Therefore, the size of the chamber 2A is not the size of the air conditioner 1, but the partition 5 surrounding the air conditioner 1.
Since the size of the air conditioner 1 is used, a sufficiently large size can be used, and the discharge port 4 can have a width that is not limited to the width of the air conditioner 1. The pressure loss is small and the pressure distribution under the floor can be easily made uniform.

FIG. 3 shows a case in which the partition 5 also has the other equipment shown in the storage equipment 9, and at this time, the chamber 2A adapted to the size of the partition 5 is the same as the above-mentioned embodiment. The size is further larger than that of the example, and the discharge port 4 is also several times wider than the width of the air conditioner 1. This further facilitates uniformization of the underfloor pressure distribution of the conditioned air discharged into the underfloor space 18.

4 and 5, the perimeter air conditioning duct section 10 installed along the outer periphery of the building is vertically divided into two parts,
By connecting the communication opening 13 of the lower duct 11 to the chamber 2A, the conditioned air discharged from the air conditioner 1 to the underfloor space 18 through the chamber 2A is discharged from the underfloor side opening 14 of the lower duct 11 of the perimeter air conditioning duct unit 10. Also shows that it can be sent to the underfloor space 18.
Even in this structure, the underfloor pressure distribution can be made uniform, and the underfloor air conditioning possible range determined by the pressure loss of the underfloor space 18 is the perimeter air conditioning duct section 10 with a low pressure loss. It becomes widespread.

Also, the illustrated perimeter air conditioning duct section 10
Has a communication port 16 (it is desirable that the opening area is variable by a damper) that connects the upper duct 15 and the lower duct 11 to each other, and a perimeter that communicates with the upper duct 15 on the upper surface formed as a counter. Since the side opening 17 is provided and the perimeter side opening 17 is opened so as to face the perimeter portion 30, the air conditioner 1 can also be used for perimeter air conditioning. Moreover, since the perimeter air conditioning duct portion 10 on the side that receives the conditioned air has a space sufficiently larger in the vertical direction than the air conditioning area of the underfloor space 18, pressure loss in the perimeter air conditioning duct portion 10 is also reduced. The static pressure distribution in the perimeter unit 30 is eliminated, and the air conditioning range can be expanded by blowing from the perimeter side opening 17, and the air conditioning efficiency is improved.

As a result, in addition to making the underfloor pressure distribution of the conditioned air discharged into the underfloor space 18 uniform, the perimeter unit 3 is also provided.
Since it is easy to make the pressure distribution uniform at 0, it is not necessary to consider the pressure loss of the conditioned air, and it is not necessary to make the outside static pressure of the air conditioner 1 sufficiently large, and as a result, the air conditioning for indoor installation There is an advantage that the machine 1 can be downsized and the effective floor area of the living room can be expanded.

(Second Embodiment) FIGS. 6 to 8 show a second embodiment of the present invention.
An example is shown, and as shown in FIG.
With a double floor on which a number of floor materials 6 are installed via columns 21
The access floor on the access floor A
Peri-counter installation portion 23 and wall surface along the window surface 22 of the lower A
Each floor part of the air conditioner installation part 25 along 24 is the other floor part A
₃Floor slab 2 via a pillar 21a longer than the pillar 21 of
0 stands on each floor, and the other floor part A₃Floor height H₂
Floor height H₁(> H₂) And these floor height parts A
₁ , A ₂Is larger than the underfloor space 18 below
By forming the conditioned air introduction part 2B with space
is there. These floor height parts A₁ , A₂Below is the wall corner
It is continuous along 24a. This allows air conditioning
Below the entrance 2B, an underfloor space 18 is provided through an underfloor side opening 14.
And is formed in the peri-counter installation part 23
The perimeter unit 30 is opened through the opened perimeter side opening 17.
Is in communication with.

Here, the floor height portion A ₁ of the air conditioner installation section 25
Has a space where at least the air conditioner 1 can be installed, and the front of the air conditioner installation section 25 is partitioned by the partition 5. A connection opening 3 for discharging the conditioned air from the air conditioner 1 is formed in the floor height portion A ₁ , and the conditioned air is supplied from the connection opening 3 to the conditioned air introduction part 2
B is discharged to B.

As shown in FIG. 7, a peri-counter 26 having an L-shaped cross section is arranged in the peri-counter installation portion 23 so as to cover the entire floor height portion A ₂ . A perimeter side opening 17 is formed on the upper surface of the peri-counter 26, and a blower (fan coil unit) for sucking the conditioned air from the air conditioner 1 is provided inside the peri-counter 26.
28 and a partition plate 29 for dividing the conditioned air supplied into the peri-counter 26 by the blower 28 into upper layer air a ₁ and lower layer air a ₂ .

However, the conditioned air (warm air or cold air) from the air conditioner 1 is conditioned air inlet 2B below the floor height portion A _1.
Is partially discharged to the underfloor space 18 from the underfloor side opening 14 and the rest is sucked into a blower 28 in the peri-counter 26. The conditioned air discharged from the upper surface discharge port 31 of the blower 28 becomes upper air a ₁ blown above the partition plate 29 in the perimeter counter 26 and is supplied from the perimeter side opening 17 to the perimeter portion 21. The lower layer air a ₂ discharged from the side discharge port 32 of the blower 28 is supplied to the underfloor space 18 through the underfloor side opening 14, and further, is supplied into the living room from an air conditioning outlet 27 of a floor portion A ₃ of the access floor A. In this way, underfloor air conditioning and peri-counter air conditioning are performed without ducts.

As described above, since the conditioned air introducing portion 2B is formed below the floor height portions A ₁ and A ₂ , the conditioned air introducing portion 2B is a space sufficiently larger in the vertical direction than the air conditioning area of the underfloor space 18. Since the pressure loss on the side receiving the conditioned air (peri-counter 26, underfloor space 18) is reduced accordingly, there is no variation in the static pressure distribution and the under-floor static pressure distribution in the perimeter unit 30, and Two
The air-conditioning range can be expanded by blowing from 6 and the air-conditioning range can be expanded by blowing from the underfloor space 18, and the air-conditioning efficiency can be improved. In particular, by opening the underfloor side opening 14 of the conditioned air introducing section 2B around the floor portion A ₃ , the opening width from the air conditioner 1 to the underfloor space 18 is further expanded, and the underfloor static pressure distribution is made more uniform. Can be planned.

As a result, since it is not necessary to consider the pressure loss of the conditioned air, it is not necessary to sufficiently increase the external static pressure of the air conditioner 1, and as a result, the size of the air conditioner 1 for indoor installation can be reduced. It is possible to increase the effective floor area of the living room. Moreover, since air conditioning can be performed without using a duct, a chamber, or the like, in addition to the effect of reducing pressure loss, there is an advantage that cost reduction and workability improvement can be achieved by reducing the number of parts.

(Third Embodiment) FIGS. 9 to 17 show a perimeter air conditioning system according to a third embodiment of the present invention. In this embodiment, as shown in FIG. 9, in the structure in which the conditioned air introducing portion 2B below the floor height portion A ₁ is communicated with the peri-counter air conditioning area of the floor height portion A ₂ through the duct, The upper and lower two-layer ducts 2C are provided, and the peri-counter 26 is provided with the upper and lower two-layer ducts 2C and a plurality of blowers 28.
It is composed of a duct-integrated skirting board 41, a duct cover 42, a peri-counter main body 43 that covers these, a line diffuser 44, and the like.

First, the upper and lower two-layer duct 2C is, as shown in FIG. 10, the upper layer air a ₁ blown to the perimeter section 30.
And a lower partition air a ₂ blown into the underfloor space 18, and a partition plate 29 is provided. The upper layer part of the partition plate 29 communicates with the duct cover 42 from the upper surface opening 31 of the upper and lower two-layer duct 2C. The lower layer portion of the partition plate 29 is the upper and lower two-layer duct 2
The lower surface opening 45 of C communicates with the underfloor space 18 through an underfloor side opening 51 formed in the skirting board 41. A plurality of blowers 2 are provided in the upper and lower two-layer duct 2C via a fixed base 46.
8 are fixed respectively, and each blower 28 individually controls its air volume according to the distance from the air conditioner 1 so that a uniform reach distance and discharge speed of air can be obtained in the perimeter unit 30 (for example, It is possible to reduce the air volume for the blower 28 closer to the air conditioner 1 and increase the air volume for the blower 28 farther from the air conditioner 1).

As shown in FIG. 10, the duct-integrated skirting board 41 arranged on the lower surface side of the upper and lower two-layer duct 2C has a box 52 having an upper surface opening 50 and an underfloor side opening 51, and has an upper surface. By aligning the lower surface opening 45 of the upper and lower two-layer duct 2C with the opening 50 of the upper and lower two-layer duct 2C,
The lower layer air a _{2 of} C can be supplied to the underfloor space 18 through the underfloor side opening 51 of the skirting board 41.

Here, in the upper and lower two-layer duct 2C, for example, as shown in FIG. 17, an orientation plate 47 and a plurality of aperture adjusting plates 4 are provided.
8 may be provided. The orientation plate 47 can be opened / closed between the upper duct 15 and the lower duct 11 of the partition plate 29 of the upper / lower two-layer duct 2C. The plurality of opening adjusting plates 48 are for controlling the ratio of the air volume, and the plurality of opening adjusting plates 48 are connected to the duct cover 42.
1 and the side opening 31a communicating with the underfloor space 18 are slidably mounted respectively, and the opening adjusting plate 48 is slid to slide the upper opening 31 and the side opening 31.
The amount of conditioned air supplied to the perimeter unit 30 and the underfloor space 18 can be controlled by adjusting the respective opening widths of a. The orientation plate 47 and the aperture adjusting plate 48 are controlled by, for example, the amount of solar radiation on the window surface 22 (indicated by P in FIG. 18), the room temperature, the humidity, and the like, and are automatically controlled based on the sensor detection signal. It may be one.

A duct cover 42 is arranged on the upper surface of the upper and lower two-layer duct 2C. The duct cover 42 includes a discharge port connecting duct 42A and a position adjusting duct 42B. The wind direction plate 5 is provided on the discharge port connection duct 42A in order to uniformly discharge the supply air from the upper and lower two-layer ducts 2C.
2 (FIG. 13) are provided. The wind direction plate 52 is formed in a V-shape whose opening becomes larger as it becomes farther from the air conditioner 1, so that the air conditioning range above the peri-counter 26 is expanded. On the other hand, the position adjustment duct 42
B is fixed to the upper surface of the discharge port connecting duct 42A, and the position adjusting duct 42 is inserted by inserting the line diffuser 44 from the upper surface of the position adjusting duct 42B.
B is connected to the line diffuser 44 without any gap. By using the discharge port connecting duct 42A and the position adjusting duct 42B, the upper and lower two-layer ducts 2C and the top plate 53 of the peri-counter body 43 can be aligned with each other.
It has a structure that can absorb a construction error in the installation position between the upper and lower two-layer duct 2C and the perimeter side opening 17 formed in the top plate 53.

A line diffuser 44 is fitted in the perimeter side opening 17 of the top plate 53. As shown in FIG. 14, the line diffuser 44 can be detachably attached to the top plate 53 without a tool. Further, a fall prevention net 60 is detachably attached to the inside of the line diffuser 44. This fall prevention net 60 is an object (for example, a mechanical pencil) from the line diffuser 44.
The function of preventing objects from falling into the upper and lower two-layer ducts 2C when the head is dropped is achieved. Therefore, the line diffuser 44 can be simply removed without removing the top plate 53 of the peri-counter 26 described later. The one that can pick up falling objects. Further, as shown in FIG. 14 (b), the net shape of the fall prevention net 60 has an angle in an oblique direction, which eliminates the bias of the wind direction and provides a good wind direction adjusting plate. Can also play the role of.

Upper and lower two-layer duct 2 constructed as described above
C, the duct cover 42, and the like are covered by the peri-counter body 43. This peri-counter main body 43 has a top plate 5.
3, a front plate 72, a jumper 73, a frame 74, a wall rail 75, a frame fixing metal fitting 76, and the like. As shown in FIG. 15, the frame 74 is fixed to a wall surface rail 75 by a frame fixing metal fitting 76 (FIG. 10), and the front side surface of the frame 74 has a V-shaped cross section. 73 is attached. As shown in FIG. 16A, the wall surface rail 7 is provided on the lower surface of the back of the top plate 53.
5 is provided with an insert piece 77 that can be inserted from the front side, and a work piece 73 is provided on the lower surface of the front portion of the top plate 53.
An attachment portion 79 that can be attached with a push rivet 78 is provided on the upper part of the.

As an example of a method of attaching the top plate 43 and the front plate 72 to the frame 74, as shown by an arrow Q in FIG. 16A, the top plate 53 is slid from the front side along the top of the frame 74. While striking to the back side, the top plate 53
The insertion piece 77 of is attached to the wall surface rail 75 so that the front surface of the top plate 53 is aligned.
It is possible to adjust the left and right of. Furthermore, in this state, FIG.
As shown in (b), by pushing the push rivet 78 from the inside of the frame 74 through the work piece 73 and pushing it into the attachment portion 79 of the top plate 53, the top plate 53 is moved to the frame 7.
Positioned and fixed with respect to 4. Further, as shown in FIG. 16C, the front plate 72 can be attached to and detached from the frame 74 by hooking the hooking piece 80 provided on the upper back surface of the front plate 72 to the hooking portion 81 provided on the lower part of the work piece 73. It can be installed.

In the above structure, the conditioned air supplied from the air conditioner ₁ to the upper and lower two-layer ducts 2C in the peri-counter 26 is divided into the upper layer air a ₁ and the lower layer air a _2, and the upper layer air a ₁ is the upper and lower layers. From the upper surface opening 31 of the duct 2C through the duct cover 42, it is blown out from the line diffuser 44 arranged in the perimeter side opening 17, and is supplied to the perimeter section 30, while the lower layer air a ₂ is supplied to the upper and lower two layer ducts 2C. From the lower surface opening 45 of the bottom board opening 5 of the skirting board 41
1 to the underfloor space 18.

In this way, by dividing the conditioned air into the upper layer air a ₁ and the lower layer air a ₂ , the pericounter 26
It is possible to eliminate variations in the amount of air supplied to the underfloor space 18 and the amount of air supplied to the underfloor space 18. Moreover, since the upper and lower two-layer ducts 2C are used, the air-conditioning air does not leak as in the conventional case where the peri-counter itself is used as a duct, and the pressure loss is reduced. Therefore, the air conditioner 1
Even if the external static pressure is small, the static pressure distribution and the underfloor static pressure distribution in the perimeter unit 30 are eliminated, and the air conditioning range by the blowout from the peri-counter 26 and the underfloor space 18
It is possible to expand the air-conditioning range by blowing from each, and as a result, it is possible to reduce the size of the air conditioner 1 and increase the effective floor area of the living room.

Further, in this embodiment, the upper and lower two-layer duct 2C is provided with the orientation plate 47 and the opening adjusting plate 48 to control the air distribution (up / down ratio of the supply air amount, adjustment of the supply air amount) between the upper and lower layers. Therefore, it becomes easier to make the supply air amount uniform, and further, the air flow direction plate 52 is provided to the discharge port connection duct 42A.
Since the air supply from the upper and lower two-layer ducts 2C can be discharged in a wide range, the local deviation of the air blowing can be eliminated by the functions of the orientation plate 47, the opening adjusting plate 48, and the wind direction plate 52. This has the advantage that a more comfortable thermal environment can be obtained.

The upper and lower two-layer ducts 2C are arranged below the floor height portions A ₁ and A ₂ of the _first embodiment, and the upper and lower two-layer ducts 2C are arranged.
The air conditioner 1 and the peri-counter 26 installed in the floor height portions A ₁ and A ₂ may be connected to each other via the
Also in this case, it is possible to contribute to downsizing of the air conditioner 1 and increase the effective floor area of the living room. (Embodiment 4) FIG. 19 shows a fourth embodiment of the present invention. In this embodiment, the floor between the floor height portion A ₁ of the air conditioner ₁ and the ceiling-
An inter-ceiling connection duct 80 (air supply space) is provided so that the air behind the ceiling a ₃ can be supplied below the floor height portion A ₁ (air-conditioning air introduction section 2) via the floor-ceiling connection duct 80. A fan 83 is provided on the inlet side of the floor-ceiling connection duct 80, and an air volume adjustment valve 81 for adjusting the amount of air supplied from the ceiling back 82 is provided on the outlet side. Other configurations are similar to those of the embodiment shown in FIG. In this way peri-counter 2
By connecting the floor-ceiling connection duct 80 to 6,
The above-ceiling air a ₃ can be used for the air conditioning of the perimeter unit 30 and the underfloor air conditioning via the air conditioning air introduction unit 2. Moreover, the floor-to-ceiling connection duct 80 is used for the air conditioner 1.
By connecting with the above, it is possible to freely select the air above the ceiling a ₃ and the air a from the air conditioner 1 and supply it to the peri-counter 26. Furthermore, the floor-ceiling connection duct 80
By installing the fan 83 on the inlet side and the air volume adjusting valve 81 on the outlet side, it is possible to freely control the supply amount of the above-ceiling air a ₃ .

That is, in the winter when the above-ceiling air> room temperature, the above-ceiling air a ₃ having a temperature higher than that of the living room in the winter is passed through the floor-to-ceiling connecting duct 80 to warm the above-ceiling 82 to the peri-counter 26. By sending in, the warm air can be supplied to the perimeter unit 30 and the underfloor space, respectively, and the air supply amount of the air conditioner 1 can be reduced. On the other hand, in the summer when the air above the ceiling <room temperature, only the cool air from the air conditioner 1 is supplied to the peri-counter 26 so as to hit the window surface 22, and the air behind the ceiling (higher than the room temperature) is not used. Then, only the cool air can be supplied to the peri-counter 26. Moreover, the air a from the air conditioner 1 and the air above the ceiling a ₃
Since it is possible to freely control the mixing ratio of A, the air a ₃ from the ceiling space 82 and the air a from the air conditioner 1 can be adjusted according to the room temperature.

As a result, the ceiling 82 which is not normally used
Since a part of the conditioned air a can be converted into warm air by using the warm air, the size of the air conditioner 1 can be reduced, and the effective area of the living room can be further expanded. Further, below the floor height portions A ₁ and A ₂ of this embodiment, the upper and lower two-layer ducts 2C of the second embodiment are arranged so that the floor-ceiling connection duct 80 and the upper and lower two-layer ducts 2C communicate with each other. The same effect can be obtained in this case as well.

(Embodiment 5) FIGS. 20 to 24 show a fifth embodiment of the present invention, in which the access floor A is entirely formed flat and the conditioned air introducing section 2 is provided under the concrete frame 100 under the floor. Cavity 2D formed inside
It is configured by. In this embodiment, at the time of new construction or remodeling of a concrete building, a cavity 2D (concrete chamber) is formed inside the concrete skeleton 100 under the floor, and the underfloor side opening 14 is formed in this cavity 2D.
And a perimeter side opening 17 are formed respectively,
A low-floor type access floor A is constructed on the upper surface of the cavity 2D over the upper surface of the floor slab 20, and the bottom surface 2D ₁ of the cavity 2D projects downward from the floor slab 20. Has a large enough space. As shown in FIGS. 22 and 23, an underfloor side opening 14 that opens into the underfloor space 18 is formed on the side surface of the hollow portion 2D, and the hollow portion 2D is formed on the access floor A in the perimeter portion 30. It also communicates with the opening 17 on the perimeter side. Further, a blower 28 is installed below the perimeter-side opening 17 so that the conditioned air is blown toward the window surface 22.

The conditioned air a from the air conditioner 1 installed on the access floor A is, as shown in FIG.
It is introduced into the cavity portion 2D through the connection opening 3 of the access floor A and is supplied to the underfloor space 18 so that the access floor A
Is discharged into the room from the air conditioning discharge port 27 of the
It is something that blows out. Here, by using the heat-insulated concrete skeleton 100 itself as the air-conditioning air introduction unit 2, it is possible to suppress the temperature rise according to the distance during cooling. That is, when a conventional duct or the like is used, the temperature rises as the air-conditioned air becomes farther (for example, when the room temperature is 26 ° during cooling, the temperature rises 4 to 6 °).
The concrete skeleton 100 has excellent heat insulating properties, and by forming the cavity 2D in the concrete skeleton 100, it is possible to suppress the temperature change of the conditioned air, and thus the distance from the air conditioner 1 is increased. Even if it does, a uniform thermal environment can be obtained.

Further, as shown in FIG. 22, since the bottom surface of the hollow portion 2D is projected downward from the floor slab 20,
The space S of the cavity 2D is expanded, and as a result, the air-conditioning area that the air conditioner 1 serves is expanded, and the members of the perimeter unit 30 (ducts, chambers, peri-counters, etc.) are not required, so pressure loss is small. As a result, it becomes easy to make the under-floor pressure distribution and the pressure distribution in the perimeter part uniform, and it becomes unnecessary to increase the external static pressure of the air conditioner 1, and the cost can be reduced by reducing the number of parts. Moreover, the workability can be improved by increasing the construction speed. Moreover, by forming the entire access floor A to be flat, the storage space S ₁ above the cavity 2D can be expanded, and therefore a tall storage facility 9 (FIG. 20) can be installed, and the storage capacity can be increased. The storage capacity can be improved by increasing the number.

(Embodiment 6) A sixth embodiment of the present invention is shown in FIG.
Shown in. In this example, an underfloor concrete beam 110
A hollow portion 2E (concrete chamber) that constitutes the conditioned air introduction portion 2 is formed inside, and an underfloor side opening 14 and a perimeter side opening 17 are formed in this hollow portion 2E, respectively. The other structure is similar to that of the embodiment shown in FIGS. Then, the hollow portion 2E of the concrete beam 110
Has a sufficient space for reducing the pressure loss, and the air conditioner 1 is installed on the access floor A above the cavity 2E. Therefore, the access floor A on which the air conditioner 1 is installed is supported by the concrete beams 110 from below, and the support strength of the air conditioner 1 is increased. Moreover, after the conditioned air from the air conditioner 1 is discharged from the connection opening 3 into the hollow portion 2E in the concrete beam 110, the underfloor space 1 is opened from the underfloor side opening 14 on the side surface of the hollow portion 2E.
8 and is further supplied from the perimeter side opening 17 to the window surface 22 of the perimeter portion 30 by the blower 28, the insulated concrete beam 110 itself is used as the conditioned air introduction portion 2, and thus is the same as the fifth embodiment. , Cavity 2E
It is possible to obtain operational effects such as suppressing a temperature rise proportional to the distance from the.

Further, as shown in FIG. 26, the concrete beam 110 is projected above and below the floor slab 20 to form the cavity 2
The upper surface 2E ₁ of E may be located above the floor slab 20 and the bottom surface 2E ₂ of the cavity 2E may be located below the floor slab 20. In this case, the space S ₂ of the hollow portion 2E is further expanded and the pressure loss is further reduced, so that the underfloor pressure distribution and the pressure distribution in the perimeter portion can be made more uniform.

(Embodiment 7) FIGS. 27 to 30 show a case where a return gallery 120 is attached to the rotary part of the partition 5 to circulate the conditioned air a ₄ from the room.
The other structure is the same as the structure of FIGS. Incidentally, FIG. 31 shows a structure in which the air conditioner 1 is installed on the floor height portion A ₁ . In FIG. 31, the floor height portion A ₁
Since the air conditioner 1 is installed above the air conditioner, the pressure loss is small, but on the other hand, there is a problem that the space T ₁ for providing the return gallery 120 is narrowed and the air conditioning noise is increased. 30 to 30, the cavity 2D,
Due to the presence of 2E, the pressure loss is small, and since the air conditioner 1 is installed on the low-floor access floor A,
A large space T ₂ for the return gallery 120 can be secured. Therefore, since the area of the return gallery 120 can be increased, the wind speed when passing through the return gallery 120 is reduced, and the air conditioning noise can be suppressed to a low level.

Further, as shown in FIG. 32, the ornamental plant 200 can be installed near the window surface 22 of the perimeter unit 30. That is, since the upper and lower spaces T ₃ in the perimeter unit 30 can be secured by the low floor type access floor A, the foliage plant 200 can be installed in this space and used as a solar shading object.
Even in the winter, there is an advantage that the dry air can be humidified by the humidifying action of the room by the transpiration action of the ornamental plant 200.

(Embodiment 8) FIG. 33 shows access floor A.
A floor height portion A ₁ is provided on the floor, the air conditioner 1 is stored in the hollow portion 2D of the concrete frame 100 below the floor height portion A ₁ , and the storage facility 9 is installed on the access floor A above the hollow portion 2D.
Is installed. In this embodiment, the air conditioner 1 is provided with air conditioning outlets 150, 151 on the front and side surfaces, and the air conditioning outlets 150 on the front side are arranged so as to face the underfloor side opening 14 to provide the same perimeter air conditioning as in the above embodiment. Underfloor air conditioning is used. By storing the air conditioner 1 in the hollow portion 2D in this way, the dead space above the hollow portion 2D expands, and the storage facility 9 can be installed using this dead space. There is an advantage that the dead space above can be effectively used.

[0045]

As described above, according to the first aspect of the present invention, the conditioned air introducing section for introducing the conditioned air from the air conditioner is provided under the floor, and the conditioned air introducing section opens into the underfloor space. Since the underfloor side opening and the perimeter side opening that opens in the perimeter part of the building are respectively formed, the conditioned air from the air conditioner is introduced into the conditioned air introduction part provided under the floor, and from this conditioned air introduction part By discharging conditioned air to the underfloor space and the perimeter portion of the building, it is possible to perform underfloor air conditioning and perimeter air conditioning with less pressure loss, and it is possible to secure a large space for the conditioned air introduction portion. Also, the pressure distribution in the perimeter portion can be easily made uniform.

According to the second aspect of the present invention, the conditioned air introducing section is composed of a chamber into which conditioned air from the air conditioner installed on the upper surface is introduced, and this chamber is
Since the bottom area of the chamber is larger than the bottom area of the air conditioner, it is designed not to match the size of the air conditioner but to the size of the partition that surrounds the air conditioner. Besides being able to
Since the discharge port in the chamber can be made sufficiently wide, it is possible to easily make the pressure distribution under the floor uniform.

According to the sixth aspect of the present invention, a part of the floor is formed at a floor height higher than the other floor portions, and an air conditioner and a peri-counter are installed in the floor height portion, respectively. Since the air conditioner and the peri-counter are communicated with each other below the floor height part and the lower part of each floor height part is communicated with the under-floor respectively, the air-conditioning area below the installation part of the air conditioner and peri-counter is in the vertical direction below the air-conditioning area under the floor. It becomes sufficiently large, the pressure loss decreases, and the static pressure distribution in the perimeter and the static pressure distribution under the floor can be made uniform. As a result, the air conditioner can be downsized, and the effective floor area in the living room can be expanded. Furthermore, since peri-counter air conditioning and underfloor air conditioning can be performed without ducts,
The number of parts is reduced and the workability can be improved.

According to the seventh aspect of the invention, the air conditioner and the peri-counter are communicated with each other through a duct, and the duct includes an upper layer air for blowing the conditioned air supplied from the air conditioner to the perimeter portion. Since it consists of upper and lower two-layer ducts that are divided into lower-layer air blown below the floor, it is possible to eliminate variations in the amount of air supplied to the peri-counter and the amount of air supplied to the under-floor, and to eliminate air-conditioning air leakage and reduce pressure loss. Can be reduced. As a result, the static pressure distribution of the perimeter and the static pressure distribution of the underfloor can be made uniform, and there is no bias in the air conditioning range, so it is possible to downsize the air conditioner and reduce the effective floor area in the living room. Can be expanded.

According to the eighth aspect of the invention, a floor-to-ceiling connection duct is provided between the floor and the ceiling, and air behind the ceiling can be supplied below the floor via the floor-to-ceiling connection duct. Therefore, by using the air above the ceiling as part of the conditioned air,
A part of the conditioned air can be used in a space that is not normally used (behind the ceiling), so the air conditioner can be made even smaller and the effective floor area in the living room is further expanded. can do. Further, according to the invention of claim 9, the conditioned air introducing portion is a duct which is arranged below a floor height portion where a part of the floor is formed at a floor height higher than other floor portions, The air-conditioning equipment is composed of upper and lower two-layer ducts that divide the air-conditioning air supplied from the machine to the perimeter and the lower-layer air that blows to the underfloor space. And the peri-counter and the underfloor space are communicated with each other, a floor-to-ceiling connection duct is provided between the above-mentioned floor height portion and the ceiling, and air behind the ceiling is connected to the floor-to-ceiling connection duct. Since it can be supplied downward, the air conditioning area below the air conditioner and peri-counter installation area is sufficiently larger in the vertical direction than the under-floor air conditioning area, and the amount of air supplied to the peri-counter by the upper and lower two-layer ducts. And underfloor supply Since it is possible to eliminate variations in air volume, there is no air-conditioning air leakage, pressure loss is reduced, and the space between the floor and ceiling (the space above the ceiling) that is not normally used is used to control the air-conditioning air. You will be able to learn the club.
As a result, the static pressure distribution and the underfloor static pressure distribution in the perimeter part can be made more uniform, and as a result of no deviation in the air conditioning range, it is possible to further downsize the air conditioner.
The effective floor area in the living room can be further expanded.

According to the tenth aspect of the present invention, the air-conditioning air introducing section is composed of a hollow portion formed inside the concrete structure under the floor, and the underfloor side opening and the perimeter side opening are formed in this hollow portion, respectively. Therefore, by utilizing the heat-insulated concrete skeleton itself as the air-conditioning air introduction section, it is possible to suppress the temperature rise according to the distance during cooling. In other words, when using conventional ducts, etc., the temperature rises as the conditioned air becomes farther away, but the concrete skeleton has excellent heat insulation, and by forming a cavity inside this concrete skeleton, The temperature change can be suppressed, which makes it easier to obtain a uniform thermal environment even if the distance from the air conditioner is large. Further, since no duct or chamber as in the conventional case is used, the number of parts can be reduced and the workability can be greatly improved.

According to the eleventh aspect of the present invention, since the bottom surface of the hollow portion is projected below the floor slab, a larger space can be secured in the hollow portion, and the pressure loss can be reduced more effectively. . Further, according to the invention of claim 12, since the air conditioner is housed in the cavity and the storage facility is installed on the upper surface side of the air conditioner, the air conditioner and the storage facility can be installed in a two-tier stack. Thus, the dead space above the cavity can be effectively used.

According to the thirteenth aspect of the present invention, the air-conditioning air introducing section is composed of a hollow portion formed inside the concrete beam under the floor, and an underfloor side opening and a perimeter side opening are formed in this hollow portion, respectively. Therefore, similarly to claim 10, by utilizing the insulated concrete beam itself as the air-conditioning air introduction part, it is possible to suppress the temperature rise according to the distance during cooling, and to use the duct or chamber as in the conventional case. Since it does not use, the number of parts can be reduced and workability can be greatly improved.

Further, according to the fourteenth aspect of the present invention, since the upper surface of the hollow portion is projected above the floor slab and the bottom surface of the hollow portion is projected below the floor slab, the space of the hollow portion is further increased. As a result, it is possible to further expand the air conditioning area that one air conditioner handles.

[Brief description of drawings]

FIG. 1 is a cutaway perspective view of a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the above.

FIG. 3 is a cutaway perspective view including the same storage equipment.

FIG. 4 is a cutaway perspective view showing the above perimeter unit.

FIG. 5 is a cutaway perspective view of the upper and lower two-layer ducts of the same.

FIG. 6 is a perspective view of a second embodiment of the present invention.

FIG. 7 is a perspective view of an essential part of the above.

FIG. 8A is a cross-sectional view of the vicinity of the air conditioner of the above, and FIG. 8B is a cross-sectional view of the vicinity of the perimeter portion of the same.

FIG. 9 is a schematic configuration diagram of a third embodiment of the present invention.

FIG. 10 is an exploded perspective view of the same peri-counter.

FIG. 11 is a cross-sectional view of the same peri-counter.

FIG. 12 is a partially cutaway perspective view for explaining an assembled state of the upper and lower two-layer ducts and the skirting board.

FIG. 13 is a schematic cross-sectional view for explaining the flow of conditioned air in the above-mentioned outlet connection duct.

14 (a) is an exploded perspective view for explaining a mounting state of a line diffuser and a fall prevention net, and FIG. 14 (b) is an F of FIG. 14 (a).
It is a -F line sectional view.

FIG. 15 is an exploded perspective view for explaining a mounting state of a top plate and a front plate of the same pericounter.

16 (a) and 16 (b) are an exploded side view and a side view of a main part for explaining a mounting state of a top plate of the same pericounter;
FIG. 7C is a side view of a main part for explaining a mounting state of the front plate of the pericounter.

FIG. 17 is a partially cutaway perspective view for explaining air volume adjustment of the upper and lower two-layer ducts.

FIG. 18 is a schematic plan view illustrating the flow of conditioned air of the above.

FIG. 19 is a perspective view of a fourth embodiment of the present invention.

FIG. 20 is a perspective view of a fifth embodiment of the present invention.

FIG. 21 is a plan sectional view for explaining the conditioned air introducing section of the above.

22 is a sectional view taken along line GG of FIG.

FIG. 23 (a) is a cross-sectional view near the air conditioner of the above, (b)
FIG. 3 is a cross-sectional view of the vicinity of the above perimeter part.

FIG. 24 (a) is a plan view for explaining the flow of the conditioned air, and FIG. 24 (b) is a sectional view taken along line JJ of FIG.

25 (a) and 25 (b) are sectional views of a sixth embodiment of the present invention.

26 (a) and (b) are cross-sectional views of a modification of FIG. 25.

FIG. 27 is a sectional view of a seventh embodiment of the present invention.

FIG. 28 is a cross-sectional view showing a modified example of FIG. 27.

FIG. 29 is a cross-sectional view showing another modified example of FIG. 27.

FIG. 30 is a sectional view showing another modification of FIG. 27.

FIG. 31 is a cross-sectional view showing a comparison with FIG. 27.

FIG. 32 is a cross-sectional view showing another modified example of FIG. 27.

FIG. 33 (a) is a sectional view of an eighth embodiment of the present invention,
(B) is a perspective view.

FIG. 34 is a cutaway perspective view of a conventional example.

FIG. 35 is an exploded perspective view of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air-conditioner 2 Air-conditioning air introduction part 14 Underfloor side opening 17 Perimeter side opening 18 Underfloor space 30 Perimeter part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Toyota 1-9-25 Edobori, Nishi-ku, Osaka, Daidan Co., Ltd. (72) Inventor Junyuki Torigoe 1-25-25 Edobori, Nishi-ku, Osaka, Daidan Co., Ltd.

Claims (14)

[Claims] 1. An air-conditioning air introduction section for introducing the air-conditioning air from an air conditioner is provided under the floor, and the air-conditioning air introduction section has an under-floor side opening that opens into the under-floor space and a perimeter side that opens in the perimeter section of the building. A combined air conditioning system for underfloor air conditioning and perimeter air conditioning, characterized in that openings are formed respectively. 2. The air-conditioning air introduction part comprises a chamber that opens the air-conditioning air from the air conditioner installed on the upper surface from a discharge port facing the underfloor space, and has a bottom area larger than the bottom area of the air conditioner. The combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 1, wherein the outer wall is connected to a lower portion of a partition surrounding the air conditioner. 3. The combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 2, wherein the partition integrally includes other equipment. 4. The combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 3, wherein the other equipment is storage equipment. 5. The combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 2, wherein the chamber is connected to a perimeter air conditioning duct section. 6. The conditioned air introduction part is formed below a floor height part where a part of the floor is formed at a floor height higher than other floor parts,
2. An underfloor air conditioner according to claim 1, wherein an air conditioner and a peri-counter are installed in the floor height portion, respectively, and the air conditioner, the underfloor space and the peri-counter communicate with each other through an air-conditioning air introduction section. And combined air conditioning system of perimeter air conditioning. 7. The air-conditioning air introducing section is composed of upper and lower two-layer ducts for dividing the air-conditioning air supplied from the air conditioner into upper layer air blown to the perimeter section and lower layer air blown to the underfloor space. Item 7. A combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to item 6. 8. The floor-to-ceiling connection duct is provided between the floor and the ceiling, and air behind the ceiling can be supplied to the underfloor space through the floor-to-ceiling connection duct. Alternatively, the combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 7. 9. The conditioned air introduction part is a duct arranged below a floor height part where a part of the floor is formed at a floor height higher than other floor parts, and the conditioned air is supplied from the air conditioner. Consists of an upper and lower two-layer duct that divides the upper air that blows to the perimeter and the lower air that blows to the underfloor space.The air conditioner and peri-counter installed under the floor and the underfloor space through the upper and lower two-layer ducts. While communicating with each other, a floor-ceiling connection duct is provided between the floor height portion and the ceiling,
The combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 1, characterized in that the air behind the ceiling can be supplied to the lower part of the high floor portion through a floor-ceiling connection duct. 10. The air-conditioning air introducing portion is composed of a hollow portion formed inside a concrete skeleton under the floor, and an underfloor side opening and a perimeter side opening are formed in this hollow portion, respectively. A combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to Item 1. 11. The combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 10, wherein the bottom surface of the hollow portion is projected below the floor slab. 12. The combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 10, wherein an air conditioner is housed in the cavity, and storage equipment is installed on the upper surface side of the air conditioner. 13. The air-conditioning air introduction part is composed of a cavity formed inside a concrete beam under the floor, and an underfloor side opening and a perimeter side opening are formed in this cavity, respectively. A combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to Item 1. 14. A combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 13, wherein the upper surface of the hollow portion is projected above the floor slab and the bottom surface of the hollow portion is projected below the floor slab. system.