JP2981404B2 - Combined air conditioning system of underfloor air conditioning and perimeter air conditioning - Google Patents

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 unit for supplying air-conditioning air to a space under floor and a perimeter unit.

[0002]

2. Description of the Related Art Conventionally, as an underfloor air conditioning system,
A method is known in which a floor under an access floor is used as an air-conditioning area, and conditioned air from an air conditioner is discharged into the air-conditioned area, and warm air or cold air is discharged into a living room from an air outlet provided on the access floor. . In other words, the underfloor space is used as a wiring space for power supply lines and signal lines, etc., by constructing the floor material while floating from the floor slab, and the underfloor space, which is the wiring space at this time, can be used as a ventilation duct. The underfloor air-conditioning system utilizes the air-conditioning air discharged from the air conditioner into the underfloor space through a plurality of outlets formed at appropriate locations on the flooring material (for example, Japanese Utility Model Laid-Open No. 5-69549). JP, JP-A-3-10117, JP-A-4-110560, JP-A-4-11
0561, JP-A-4-208352).

FIGS. 34 and 35 show an example of an air conditioner for underfloor air-conditioning. An underfloor duct 200 is connected to a portion facing the underfloor space 18 while being fitted into an opening 12 provided in a floor material 6. A 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, reference numeral 5 denotes a partition surrounding the air conditioner 1, reference numeral 9 denotes a storage facility installed adjacently, and reference numeral 7 denotes a return port through which a conditioned air is returned through a suction port provided in the ceiling material 8 and a space above the ceiling.

In a conventional perimeter air-conditioning system, a peri-counter is installed on an access floor in a perimeter section, and the peri-counter is used as an air supply duct to blow conditioned air from an air conditioner to the perimeter section. A 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 considering this loss. Further, since the opening width of the underfloor duct 200 is limited to 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 an air distribution plate is separately provided under the floor to control the airflow.

On the other hand, in the conventional peri-counter air-conditioning system, since the peri-counter itself is used as an air supply duct, a gap between the peri-counter and the floor surface or a gap between the peri-counter and the wall surface causes air leakage. Become. Moreover, the longer the distance between the outlet of the counter and the air conditioner, the lower the static pressure.Therefore, the reach of the conditioned air blown out to the perimeter and the discharge speed are reduced by the distance between the counter and the air conditioner. As a result, there is a problem that the static pressure distribution in the perimeter section becomes non-uniform, the air-conditioning range is biased, and the peri-counter air-conditioning efficiency is reduced. In addition, since separate members such as ducts and peri-counters are required, costs are high and workability is poor.In addition, when ducts are used, air conditioning air is used in proportion to the distance from the air conditioner during cooling. Since the temperature easily rises, there is also a problem that a uniform thermal environment cannot be obtained.

The present invention has been made in view of the above points, and an object of the present invention is to provide an underfloor air conditioner which has low pressure loss and facilitates uniform underfloor air conditioning and uniform pressure distribution in the perimeter section. Another object of the present invention is to provide a combined air conditioning system of perimeter air conditioning and a perimeter air conditioning system, which can perform underfloor air conditioning and perimeter air conditioning without using ducts or chambers, thereby making pressure distribution more uniform. An object of the present invention is to provide a combined air conditioning system of underfloor air conditioning and perimeter air conditioning.

[0008]

According to the present invention, an air-conditioned air introduction section 2 into which air-conditioned air from an air conditioner 1 is introduced is provided under the floor, and the air-conditioned air introduction section 2 opens into an underfloor space 18. An underfloor opening 14 and a perimeter-side opening 17 opening in the perimeter section 30 of the building are formed respectively .
The air-conditioning air introduction unit 2 is an air conditioner installed on the upper surface.
The air-conditioned air from 1 is discharged from the outlet 4 facing the underfloor space 18.
It consists of a chamber 2A to be opened, and the bottom area of the air conditioner 1
The chamber 2A having a larger bottom area is
The outer wall is below the partition 5 surrounding the air conditioner 1
It is characterized by being connected .

[0009]

According to the present invention, an air-conditioned air introduction section 2 into which air-conditioned air from the air conditioner 1 is introduced is provided under the floor, and the under-floor opening 14 opening into the under-floor space 18 in the air-conditioned air introduction section 2; Since the perimeter-side opening 17 that opens to the perimeter section 30 is formed, underfloor air-conditioning and perimeter air-conditioning with low pressure loss can be performed using the underfloor,
Since a large space for the conditioned air introduction section 2 can be ensured, the pressure distribution in the underfloor space 18 and the perimeter section 30 can be easily made uniform.

[0010]

【Example】

(Embodiment 1) FIGS. 1 to 5 show a first embodiment of the present invention, in which an air-conditioned air inlet 2 into which air-conditioned air from an air conditioner 1 is introduced is constituted by 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, and is provided with an opening 3 for connection to the air conditioner 1 on the upper surface thereof, and a discharge port almost completely wide at a lower portion of the peripheral surface. 4 are provided. Further, the partition 5 surrounding the air conditioner 1 has a size such that its lower end fits into the upper part of the chamber 2A.

Thus, the lower portion of the chamber 2A is fitted into the opening 12 provided in the floor material 6 which is floated from the floor slab, the air conditioner 1 is installed thereon, and the lower portion 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 out from the air conditioner 1 is discharged into the underfloor space 18 from the wide discharge port 4 opened under the floor in the chamber 2A through 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 opening provided at the upper end and opening in the back of the ceiling,
8 is a ceiling material.

Thus, the partition 2 surrounding the air conditioner 1 is not the size of the air conditioner 1 but the size of the chamber 2A.
Since the size according to 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 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 where a partition 5 is used which also has the other equipment shown in the storage facility 9. At this time, the chamber 2 A adapted to the size of the partition 5 is provided in the above-described embodiment. The discharge port 4 has a width several times larger than that of the air conditioner 1. This makes it easier to equalize the underfloor pressure distribution of the conditioned air discharged into the underfloor space 18.

FIG. 4 and FIG. 5 show that the perimeter air-conditioning duct unit 10 installed along the outer periphery of the building is divided into two parts vertically,
The communication opening 13 of the lower duct 11 is communicated with the chamber 2A, and the conditioned air discharged from the air conditioner 1 to the underfloor space 18 via the chamber 2A flows from the underfloor 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.
Also in this structure, the underfloor pressure distribution can be made uniform, and the underfloor air-conditionable range determined by the pressure loss of the underfloor space 18 is reduced by the perimeter air-conditioning duct unit 10 having a low pressure loss. It becomes wide.

A perimeter air-conditioning duct 10 shown in FIG.
Is provided with a communication port 16 (preferably having a variable opening area with a damper) for communicating the upper duct 15 and the lower duct 11, and a perimeter communicating 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 facing the perimeter section 30, the air conditioner 1 can be used for perimeter air conditioning. In addition, since the perimeter air-conditioning duct unit 10 that receives the conditioned air has a space vertically larger than the air-conditioning area of the underfloor space 18, the pressure loss in the perimeter air-conditioning duct unit 10 is also reduced. In addition, variations in the static pressure distribution of the perimeter section 30 are eliminated, and the air-conditioning range can be expanded by blowing out from the perimeter-side opening 17, thereby improving the air-conditioning efficiency.

As a result, in addition to making the underfloor pressure distribution of the conditioned air discharged into the underfloor space 18 uniform, the perimeter 3
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 sufficiently increase the external static pressure of the air conditioner 1, and as a result, the air conditioning for indoor installation There is an advantage that the size of the machine 1 can be reduced and the effective floor area of the living room can be increased.

(Embodiment 2) FIGS. 6 to 8 show a second embodiment of the present invention.
FIG. 6 shows an embodiment, and as shown in FIG.
A double floor with a large number of flooring materials 6 installed on it via struts 21
In the access floor A configured as
Peri counter installation part 23 and wall surface along window surface 22 of lower A
Each floor part of the air conditioner installation part 25 along with 24 is another floor part A
_ThreeFloor slab 2 via a support 21 a longer than the support 21
0, respectively, and the other floor A_ThreeFloor height H_Two
Than floor height H₁(> H_Two) And these floor heights A
₁ , A _TwoVertically larger than the underfloor space 18 below
The air-conditioned air inlet 2B with space is formed.
is there. These floor heights A₁ , A_TwoBelow is the wall corner
It is continuous along 24a. As a result, air conditioning air
The lower part of the entrance 2B is connected to the underfloor space 18 through the underfloor opening 14.
And formed in the peri counter installation part 23
Through the perimeter side opening 17
Is in communication with

Here, the floor height A ₁ of the air conditioner installation section 25 is set.
Has at least a space in which the air conditioner 1 can be installed, and the front of the air conditioner installation section 25 is partitioned by a 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 section 2.
B is ejected.

[0019] the peri counter installation part 23, as shown in FIG. 7, peri counter 26 of L-like section shape which covers the entire bed height portion A ₂ is disposed. A perimeter-side opening 17 is formed on the upper surface of the peri counter 26, and a blower (fan coil unit) for sucking conditioned air from the air conditioner 1 is provided inside the peri counter 26.
And a partition plate 29 for dividing the conditioned air supplied into the peri counter 26 by the blower 28 into upper air a ₁ and lower air a ₂ .

Thus, the conditioned air (warm air or cold air) from the air conditioner ₁ is supplied to the conditioned air introduction section 2B below the floor high portion A1.
And a part of the conditioned air is supplied from the underfloor opening 14 to the underfloor space 18, and the rest is sucked into the blower 28 in the peri counter 26. The conditioned air discharged from the upper surface discharge port 31 of the blower 28 is supplied to the perimeter section 21 from the perimeter-side opening 17 as upper layer air a ₁ which blows out above the partition plate 29 in the peri counter 26. , lower air a ₂ discharged from the side discharge holes 32 of the blower 28 is supplied to the underfloor space 18 through floor-side opening 14 is further supplied from the air conditioning outlet 27 of the floor portion a ₃ of the floor a to the living room. In this manner, underfloor air-conditioning and peri-counter air-conditioning are performed without a duct.

As described above, since the air-conditioned air introduction portion 2B is formed below the floor height portions A ₁ and A ₂ , the air-conditioned air introduction portion 2B is a space that is sufficiently larger in the vertical direction than the air-conditioned area of the underfloor space 18. Since the pressure loss on the side receiving the conditioned air (the peri counter 26 and the underfloor space 18) is reduced, the static pressure distribution and the underfloor static pressure distribution of the perimeter section 30 are eliminated, and the peri counter 2
The air-conditioning range can be expanded by blowing out from the air conditioner 6 and the air-conditioning range can be expanded by blowing out from the underfloor space 18, thereby improving the air-conditioning efficiency. In particular, by the floor-side opening 14 of the conditioned air introducing portion 2B open to the periphery of the floor portion A _3, the opening width of the air conditioner 1 to the underfloor space 18 is further enlarged, the more uniform the underfloor static pressure distribution Can be planned.

As a result, it is not necessary to consider the pressure loss of the conditioned air, so that 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 to be installed in a living room can be reduced. It is possible to increase the effective floor area of the room. In addition, 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 can be improved by reducing the number of components.

(Embodiment 3) 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 a bed height portion A ₁ of the lower of the conditioned air introducing portion 2B through the duct communicated with the peri counter air conditioning area of bed height portions A ₂ structure, the duct The upper and lower two-layer duct 2C, and the peri counter 26 includes the upper and lower two-layer duct 2C, a plurality of blowers 28,
It is composed of a duct-integrated baseboard 41, a duct cover 42, a peri-counter main body 43 covering them, a line diffuser 44, and the like.

First, as shown in FIG. 10, upper and lower two-layer ducts 2C are provided with upper layer air a _{1 which} blows out to the perimeter section 30.
When provided with a partition plate 29 which divides into a lower air a ₂ for blowing the underfloor space 18, the upper portion of the partition plate 29 is communicated with the upper opening 31 of the upper and lower two layers duct 2C the duct cover 42, The lower part of the partition plate 29 is the upper and lower two-layer duct 2.
C communicates with the underfloor space 18 from the lower surface opening 45 through the underfloor opening 51 formed in the baseboard 41. In the upper and lower two-layer duct 2C, a plurality of blowers 2
8 are fixed, and each blower 28 individually controls its air volume in accordance with the distance from the air conditioner 1 so that a uniform reaching distance and discharge speed of air can be obtained in the perimeter section 30 (for example, (The blower 28 closer to the air conditioner 1 has a smaller air volume, and the blower 28 farther from the air conditioner 1 has a larger air volume.)

As shown in FIG. 10, the duct-integrated baseboard 41 disposed 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 a lower floor opening 51, and The lower opening 45 of the upper and lower two-layer duct 2C is aligned with the opening 50 of the upper and lower two-layer duct 2C.
The lower air a _{2 of} C can be supplied to the underfloor space 18 through the underfloor opening 51 of the baseboard 41.

Here, as shown in FIG. 17, for example, an orientation plate 47 and a plurality of opening adjustment plates 4
8 may be provided. The orientation plate 47 is openable and closable between the upper duct 15 and the lower duct 11 of the partition plate 29 of the upper and lower two-layer duct 2C. The plurality of opening adjustment plates 48 are provided to control the ratio of the air flow.
1 and a side opening 31a communicating with the underfloor space 18. The opening adjusting plate 48 is slidably attached to the upper surface opening 31 and the side opening 31.
By adjusting the respective opening widths of a, the amount of conditioned air supplied to the perimeter section 30 and the underfloor space 18 can be controlled. Note that the orientation plate 47 and the opening adjustment plate 48 are automatically controlled based on, for example, the amount of solar radiation (indicated by P in FIG. 18) on the window surface 22, the room temperature, the humidity, and the like, and based on the sensor signal. It may be something.

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 connection duct 42A and a position adjustment duct 42B. In order to uniformly discharge the air supplied from the upper and lower two-layer duct 2C, the wind direction plate 5
2 (FIG. 13). The wind direction plate 52 is formed in a V-shape in which the opening becomes larger as the distance from the air conditioner 1 increases, whereby 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 connection duct 42A, and is inserted into the line diffuser 44 from the upper surface of the position adjustment duct 42B.
B is connected to the line diffuser 44 without any gap. With the discharge port connection duct 42A and the position adjustment duct 42B, the upper and lower two-layer duct 2C and the top plate 53 of the peri-counter main body 43 can be aligned,
The structure is such that the installation error of the installation position between the upper and lower two-layer duct 2C and the perimeter-side opening 17 formed in the top plate 53 can be absorbed.

A line diffuser 44 is fitted into 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 tools. Further, a fall prevention net 60 is detachably attached inside the line diffuser 44, and the fall prevention net 60 is provided from the line diffuser 44 (for example, a mechanical pencil).
In this case, the function of preventing an object from dropping into the upper and lower two-layer duct 2C when the device is dropped can be achieved. Thus, the line diffuser 44 can be simply removed without removing a top plate 53 of the peri counter 26 described later. 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, so that there is no deviation in the wind direction, and as a wind direction adjusting plate capable of obtaining a good airflow pattern. Can also serve as a role.

Upper and lower two-layer duct 2 constructed as described above
C, the duct cover 42 and the like are covered by a peri counter main body 43. The peri-counter main body 43 includes a top plate 5
3, a front plate 72, a jumpsuit 73, a frame 74, a wall rail 75, a frame fixing bracket 76, and the like. As shown in FIG. 15, the frame 74 is fixed to a wall rail 75 by a frame fixing bracket 76 (FIG. 10), and a front side surface of the frame 74 has a substantially V-shaped cross-section. 73 is attached. As shown in FIG. 16A, the wall surface rail 7
5 is provided with an insertion piece 77 that can be inserted from the near side, and a front panel
A mounting portion 79 that can be mounted with a push rivet 78 is provided on the upper part of the mounting member.

As an example of a method of attaching the top plate 43 and the front plate 72 to the frame 74, the top plate 53 is slid along the frame 74 from the near side as shown by an arrow Q in FIG. While hitting the back side, the top plate 53
The insertion piece 77 of the top plate 53 is locked to the wall surface rail 75 so that the front surface of the top plate 53 is aligned.
Left and right can be adjusted. Further, in this state, FIG.
As shown in (b), by pushing the push rivet 78 from the inside of the frame 74 into the mounting portion 79 of the top plate 53 through the jumper material 73, the top plate 53 is attached to the frame 7.
4 and is fixed. Also, as shown in FIG. 16C, the front plate 72 is detachably attached to the frame 74 by hooking a hook piece 80 provided on the upper back surface of the front plate 72 on a hook portion 81 provided below the jumper material 73. Can be attached.

[0031] In the above structure, the conditioned air from the air conditioner 1 is supplied to the bilevel duct 2C in peri counter 26 is divided into the upper air a ₁ and the lower air a _2, upper air a ₁ is bilevel The air blows out from the line diffuser 44 disposed in the perimeter-side opening 17 from the upper surface opening 31 of the duct 2C via the duct cover 42 and is supplied to the perimeter unit 30. On the other hand, the lower air a ₂ is supplied to the upper and lower two-layer duct 2C. From the lower opening 45 to the underfloor opening 5 of the baseboard 41
1 to the underfloor space 18.

As described above, by dividing the conditioned air into the upper air a ₁ and the lower air a ₂ , the peri counter 26
Of the supply air to the underfloor space 18 can be eliminated. In addition, the use of the upper and lower two-layer duct 2C eliminates the leakage of the conditioned air as in the case where the pericounter itself is used as a duct as in the related art, and reduces the pressure loss. Therefore, the air conditioner 1
Even when the static pressure outside the machine is small, variations in the static pressure distribution and the underfloor static pressure distribution in the perimeter section 30 are eliminated, and the air conditioning range by blowing out from the peri counter 26 and the underfloor space 18
Thus, the air-conditioning range of the air-conditioner 1 can be expanded, and as a result, the size of the air conditioner 1 can be reduced, and the effective floor area of the living room can be increased.

Further, in this embodiment, the upper and lower two-layer duct 2C are provided with the orientation plate 47 and the opening adjusting plate 48, so that the air distribution of the upper and lower layers (up / down ratio of supply air amount, adjustment of supply air amount) can be controlled. This makes it easier to equalize the amount of supply air, and furthermore, the wind direction plate 52
Is provided, the supply air from the upper and lower two-layer duct 2C can be discharged in a wide range, and the orientation plate 47, the opening adjustment plate 48, and the wind direction plate 52 eliminate the local deviation of the air blowing. Therefore, there is an advantage that a more comfortable thermal environment can be obtained.

The upper and lower double-layer ducts 2C are arranged below the floor height portions A ₁ and A ₂ of the _first embodiment.
The structure may be such that the air conditioner 1 and the peri counter 26 installed in the floor height portions A ₁ and A ₂ communicate with 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 the present embodiment, a floor is provided between the floor height portion A1 of the air conditioner ₁ and the ceiling.
The ceiling between connection duct 80 (air supply space) is provided, the ceiling air a ₃ floor - which was made possible supplied through the ceiling between the connecting duct 80 to the bed height portion A ₁ of the lower (conditioned air introducing portion 2) In addition, a fan 83 is provided on the entrance side of the floor-to-ceiling connection duct 80, and an air volume adjustment valve 81 for adjusting the amount of air supplied from the ceiling space 82 is provided on the exit side. Other configurations are the same as those of the embodiment of FIG. Thus, the peri counter 2
By connecting the floor-ceiling connection duct 80 to 6,
Air conditioning ceiling perimeter portion 30 of the air a ₃ through the air-conditioned air introducing portion 2, and it becomes possible to utilize the floor air-conditioning. Moreover, this floor-to-ceiling connection duct 80 is connected to the air conditioner 1
With this, the air a _{3 above} the ceiling and the air a from the air conditioner 1 can be freely selected and supplied to the peri counter 26. Further, a floor-to-ceiling connection duct 80
With installing the fan 83 on the inlet side of, by having established the air flow rate adjusting valve 81 on the outlet side, which is free to control the supply amount of the ceiling air a _3.

That is, in the winter where the air above the ceiling is higher than the room temperature, the air above the ceiling a ₃ having a higher temperature than the room in the winter is supplied to the peri counter 26 through the floor-to-ceiling connecting duct 80. By sending the air, 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 summer when the air under the ceiling is lower than the 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 so as not to use the air under the ceiling (higher temperature than the room temperature). 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 under the ceiling a ₃
Can be freely controlled, so that the air a ₃ from the ceiling lining 82 and the air a from the air conditioner 1 can be adjusted according to the room temperature.

As a result, the ceiling 82 that is not normally used
Since a part of the conditioned air a can be used by utilizing 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, the lower and upper two-layer ducts 2C of the second embodiment are arranged below the floor height portions A ₁ and A ₂ of the present embodiment so that the floor-ceiling connection duct 80 and the upper and lower two-layer ducts 2C communicate with each other. In this case, the same operation and effect can be obtained.

(Embodiment 5) FIGS. 20 to 24 show a fifth embodiment of the present invention. The access floor A is formed entirely flat, and the air-conditioning air introduction section 2 is connected to a concrete frame 100 under the floor. Cavity 2D formed inside
It is constituted by In this embodiment, a cavity 2D (concrete chamber) is formed inside the concrete frame 100 under the floor when a concrete building is newly constructed or renovated, and the underfloor opening 14 is formed in the cavity 2D.
And a perimeter-side opening 17, respectively.
The upper surface of the cavity portion 2D over the upper surface of the floor slab 20 with low-floor type floor A is construction, the bottom surface 2D ₁ of the cavity portion 2D protrudes downward from the floor slab 20, thereby the cavity portion 2D Has a sufficiently large space. As shown in FIG. 22 and FIG. 23, a lower floor side opening 14 that opens into the lower floor 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 perimeter side opening 17. Further, a blower 28 is provided below the perimeter-side opening 17, and has a structure in which conditioned air blows toward the window surface 22.

Thus, the conditioned air a from the air conditioner 1 installed on the access floor A, as shown in FIG.
Introduced into the cavity 2D through the connection opening 3 of the access floor A, supplied to the underfloor space 18, and
Is discharged into the room from the air-conditioning discharge port 27, and is blown from the perimeter side opening 17 to the window surface 22 by the blower 28 under the floor.
It is blown out to. Here, by using the insulated concrete skeleton 100 itself as the air-conditioned air introduction unit 2, it is possible to suppress a rise in temperature according to the distance during cooling. In other words, when a conventional duct or the like is used, the temperature increases as the conditioned air moves further (for example, during cooling, the temperature increases by 4 to 6 ° when the room temperature is 26 °).
The concrete skeleton 100 is excellent in heat insulation, and by forming the cavity 2D in the concrete skeleton 100, the temperature change of the conditioned air can be suppressed, thereby increasing the distance from the air conditioner 1. Even if it is, a uniform thermal environment can be obtained.

Further, as shown in FIG. 22, the bottom surface of the cavity 2D is projected below the floor slab 20, so that
The space S of the cavity 2D is expanded, and as a result, the air-conditioning area covered by the air conditioner 1 is expanded, and the members (ducts, chambers, peri-counters, etc.) of the perimeter unit 30 become unnecessary, so that pressure loss is reduced Accordingly, it is easy to make the underfloor pressure distribution and the pressure distribution in the perimeter section uniform, and it is not necessary to increase the external static pressure of the air conditioner 1, and the cost is reduced by reducing the number of parts. And the workability can be improved by speeding up the work. Moreover, by forming the entire floor A flat, it is possible to enlarge the storage space S ₁ on the cavity 2D, therefore, tall storage facility 9 (FIG. 20) is mountable, storage of The storage capacity can be improved by increasing the number.

(Embodiment 6) FIG. 25 shows a sixth embodiment of the present invention.
Shown in In this embodiment, a concrete beam 110 under the floor is used.
A hollow portion 2E (concrete chamber) constituting the air-conditioned air introducing portion 2 is formed in the inside of the inside, and an underfloor opening 14 and a perimeter-side opening 17 are respectively formed in the hollow portion 2E. Other configurations are the same as those of the embodiment of FIGS. Thus, the cavity 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 on the upper surface of the cavity 2E. Accordingly, the access floor A on which the air conditioner 1 is installed is supported from below by the concrete beams 110, and the support strength of the air conditioner 1 is increased. In addition, the conditioned air from the air conditioner 1 is discharged from the connection opening 3 to the cavity 2E in the concrete beam 110, and then from the underfloor opening 14 on the side of the cavity 2E to the underfloor space 1E.
8 is supplied to the window surface 22 of the perimeter section 30 by the blower 28 from the perimeter side opening 17, and the insulated concrete beam 110 itself is used as the air-conditioned air introduction section 2. , Cavity 2E
It is possible to obtain operational effects such as suppression of temperature rise in proportion to the distance from the vehicle.

As shown in FIG. 26, the concrete beam 110 is projected above and below the floor slab 20 so that
The top surface 2E ₁ of E is positioned above the floor slab 20, it may be to position the bottom surface 2E ₂ of the hollow portion 2E below the floor slab 20. In this case, the enlarged space S ₂ of the cavity 2E is more, the pressure loss is less, in which it is possible to further uniform the underfloor pressure distribution and pressure distribution perimeter portion.

[0042] (Embodiment 7) FIGS. 27 to 30 is mounted a return for louvers 120 to the transom of the partition 5, in which circulates the conditioned air a ₄ from the room.
Other configurations are the same as those in FIGS. 20 to 26. Incidentally Figure 31 shows the installation structure of the air conditioner 1 on the floor height portion A _1. In FIG. 31, the floor height portion A ₁
Due to the established air conditioner 1 on the, the pressure loss is small, on the other hand, the narrower the space T ₁ providing a return for louver 120, while there is a problem that the air conditioning noise is increased, FIG. 27 30 to FIG. 30, the hollow portions 2D,
Since the pressure loss is small due to the presence of 2E and the air conditioner 1 is installed on the low floor type access floor A,
The space T ₂ of the return for the louver 120 can be largely secured. Accordingly, since the area of the return gallery 120 can be increased, the wind speed when passing through the return gallery 120 can be reduced, and the air-conditioning noise can be reduced.

Further, as shown in FIG. 32, houseplants 200 can be installed near the window surface 22 of the perimeter section 30. That is, since the upper and lower spaces T ₃ in the perimeter unit 30 can be largely secured by the low-floor type access floor A, the houseplant 200 can be installed in this space and used as a solar radiation shield.
Even in winter, there is an advantage that the dry air can be humidified by the humidifying effect of the room by the transpiration of the houseplant 200.

(Embodiment 8) FIG.
In the provided Yukadaka moiety A _1, as well as accommodating the air conditioner 1 in the cavity 2D of the concrete skeleton 100 of the lower bed height portions A _1, storage facility above the floor A of the cavity 2D 9
Is installed. In this embodiment, the air conditioner 1 is provided with air conditioning outlets 150 and 151 on the front and side surfaces, and the air conditioning outlet 150 on the front side is arranged facing the underfloor opening 14 to perform the same perimeter air conditioning as in the above embodiment. Air conditioning is performed under the floor. By storing the air conditioner 1 in the cavity 2D in this way, the dead space above the cavity 2D is enlarged, and the storage equipment 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 air-conditioned air introduction section into which the air-conditioned air from the air conditioner is introduced is provided under the floor, and the air-conditioned air introduction section is opened to the underfloor space. Since the underfloor side opening and the perimeter side opening that opens in the perimeter section of the building are respectively formed, the conditioned air from the air conditioner is introduced into the conditioned air introduction section provided under the floor, and from this conditioned air introduction section, By discharging the conditioned air to the underfloor space and the perimeter section of the building, underfloor air conditioning and perimeter air conditioning with low pressure loss can be performed, and a large space for the conditioned air introduction section can be ensured. In addition, it is possible to easily achieve uniform pressure distribution in the perimeter section. Further, the air-conditioned air introduction section is installed on the upper surface.
Consists of a chamber into which conditioned air from the air conditioner is introduced
And adapt this chamber to the size of the air conditioner
Not the size of the partition surrounding the air conditioner
And the bottom area of the air conditioner
, So that underfloor airflow with less loss is
Can be performed and the outlets in the chamber
Because the width can be wide, the pressure below the floor
The cloth can be easily uniformized.

[0046]

According to the fifth aspect of the present invention, a part of the floor is formed higher than the other floors, and an air conditioner and a peri-counter are respectively installed in the floor height part. The peri-counter and the peri-counter are communicated with each other below the floor-height portion, and the lower portions of the respective floor-height portions are communicated with the under-floor, respectively. And the pressure loss is reduced, and the static pressure distribution and the under-floor static pressure distribution in the perimeter section can be made uniform. As a result, the size of the air conditioner can be reduced, and the effective floor area in the living room can be increased. Furthermore, since it is possible to perform per-counter air conditioning and underfloor air conditioning without a duct,
The number of parts is reduced, and the workability can be improved.

According to the invention of claim 6 , the air conditioner and the peri-counter are communicated with each other via the duct, and the duct is connected to the upper air that blows the conditioned air supplied from the air conditioner to the perimeter section. Since it consists of upper and lower two-layer ducts that are divided into lower air that blows out below the floor, variations in the amount of air supplied to the counter and the amount of air supplied below the floor can be eliminated, and there is no leakage of conditioned air, reducing pressure loss. Can be reduced. As a result, the static pressure distribution and the under-floor static pressure distribution in the perimeter section can be made uniform, respectively, and the air conditioning range does not become uneven, so that the air conditioner can be downsized and the effective floor area in the living room can be reduced. Can be expanded.

According to the seventh aspect of the present invention, a floor-to-ceiling connecting duct is provided between the floor and the ceiling, so that air behind the ceiling can be supplied under the floor via the floor-to-ceiling connecting duct. Therefore, by using the air above the ceiling as part of the air conditioning air,
A part of the air-conditioned air that can be used in a space that is not normally used (behind the ceiling) can be used as part of the air-conditioned air, which can further reduce the size of the air conditioner and further increase the effective floor area in the living room can do. According to the invention described in claim 8 , the air-conditioned air introduction section is a duct arranged below a floor height portion where a part of the floor is formed to be higher than other floor portions, and An air conditioner that is installed at a high part of the floor through upper and lower two-layer ducts that divides the conditioned air supplied from the machine into upper air that blows out to the perimeter section and lower air that blows out to the underfloor space. And the peri counter and the underfloor space are communicated with each other, and a floor-to-ceiling connection duct is provided between the floor-height portion and the ceiling, and the air behind the ceiling is passed through the floor-to-ceiling connection duct to the floor-height portion. Because it can be supplied downward, the air-conditioning area below the air conditioner and peri-counter installation part is sufficiently larger in the vertical direction than the air-conditioning area under the floor, and the amount of air supplied to the peri-counter by the upper and lower two-layer duct And underfloor supply Since the variation in the air volume can be eliminated, the leakage of the conditioned air can be eliminated, the pressure loss can be reduced, and the floor-to-ceiling connecting duct can be used to reduce the amount of the conditioned air by using a space that is not normally used (behind the ceiling). You will be able to play the part.
As a result, the static pressure distribution and the under-floor static pressure distribution of the perimeter section can be made more uniform, and the air-conditioning range does not become uneven. As a result, the air conditioner can be further downsized.
The effective floor area in the living room can be further increased.

According to the ninth aspect of the present invention, the air-conditioning air introducing portion is formed of a hollow portion formed inside the concrete skeleton below the floor, and a lower floor opening and a perimeter side opening are respectively formed in the hollow portion. Therefore, by using the insulated concrete body itself as the air-conditioning air introduction unit, it is possible to suppress a temperature rise according to the distance during cooling. In other words, when a conventional duct or the like is used, the temperature rises as the conditioned air goes further, but the concrete skeleton has excellent heat insulation properties. This makes it easier to obtain a uniform thermal environment even if the distance from the air conditioner is large. In addition, since the conventional ducts and chambers are not used, the number of parts is reduced, and the workability can be greatly improved.

According to the tenth aspect of the present invention, since the bottom surface of the hollow portion projects below the floor slab, a larger space can be secured in the hollow portion, and the pressure loss can be more effectively reduced. . According to the eleventh aspect of the present invention, 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-tiered manner. As a result, the dead space above the cavity can be effectively utilized.

Further, according to the twelfth aspect of the present invention, the air-conditioned air introducing portion is formed of a hollow portion formed inside a concrete beam under the floor, and an under-floor opening and a perimeter-side opening are respectively formed in the hollow portion. Therefore, similar to claim 9 ,
By using 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 the number of parts is reduced because the conventional ducts and chambers are not used. Workability can be greatly improved.

According to the thirteenth aspect of the present invention, since the upper surface of the hollow portion protrudes above the floor slab and the bottom surface of the hollow portion protrudes below the floor slab, the space of the hollow portion is further increased. Thus, the air-conditioning area covered by one air conditioner can be further expanded.

[Brief description of the 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 same.

FIG. 3 is a cutaway perspective view provided with the same storage facility.

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

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

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

FIG. 7 is a perspective view of a main part of the above.

8A is a cross-sectional view near the air conditioner according to the first embodiment, and FIG. 8B is a cross-sectional view near the perimeter unit according to the first embodiment.

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

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

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

FIG. 12 is a partially cutaway perspective view illustrating an assembled state of the upper and lower two-layer duct and the baseboard according to the first embodiment.

FIG. 13 is a schematic sectional view illustrating a flow of conditioned air in a discharge port connection duct of the above.

14A is an exploded perspective view illustrating a state where a line diffuser and a drop prevention net are attached, and FIG. 14B is an exploded perspective view of FIG.
It is a sectional view taken on line -F.

FIG. 15 is an exploded perspective view for explaining a mounting state of a top plate and a front plate of the peri counter of the above.

16 (a) and (b) are an exploded side view and a main part side view for explaining an attached state of a top plate of the peri counter of the above.
(C) is a principal part side view explaining the attachment state of the front plate of the peri counter.

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

FIG. 18 is a schematic plan view illustrating the flow of the conditioned air in 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 illustrating an air-conditioning air introduction unit of the above.

22 is a sectional view taken along line GG of FIG. 21.

FIG. 23A is a cross-sectional view showing the vicinity of the air conditioner of the above, and FIG.
FIG. 2 is a cross-sectional view of the vicinity of the perimeter section.

FIG. 24A is a plan view for explaining the flow of conditioned air in the above embodiment, and FIG. 24B is a sectional view taken along line JJ of FIG.

FIGS. 25A and 25B are cross-sectional views of a sixth embodiment of the present invention.

26A and 26B are cross-sectional views of a modification of FIG.

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

FIG. 28 is a sectional view showing a modification of FIG. 27;

FIG. 29 is a sectional view showing another modification of FIG. 27;

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

FIG. 31 is a sectional view showing a comparison with FIG. 27;

FIG. 32 is a sectional view showing another modification 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 same.

[Explanation of symbols]

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

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Toyoda 1-9-25 Edobori, Nishi-ku, Osaka City Inside Daidan Corporation (72) Inventor Junyuki Togoshi 1-9-25 Edobori, Nishi-ku, Osaka City Daidan stock In-company (56) References JP-A-7-19525 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) F24F 3/044 F24F 1/00 401

Claims (13)

(57) [Claims] 1. An air-conditioning air introduction section through which air-conditioning air from an air conditioner is introduced is provided under the floor, and a lower-floor opening that opens into a space below the floor at the air-conditioning air introduction section and a perimeter side that opens into a perimeter section of a building. Under the floor where each opening is formed
In the combined air conditioning system of air conditioning and perimeter air conditioning,
The air-conditioning air inlet is an air-conditioner from the air conditioner installed on the top.
Chamber that opens air from the discharge port facing the underfloor space
And has a bottom area larger than the bottom area of the air conditioner
The chamber has a wall whose outer wall surrounds the air conditioner.
A combined air conditioning system for underfloor air conditioning and perimeter air conditioning, which is connected to the lower part of the cab. 2. The combined air conditioning system of underfloor air conditioning and perimeter air conditioning according to claim 1, wherein the partition is integrally provided with other equipment. 3. The combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 2, wherein the other equipment is a storage facility. 4. The combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 1, wherein the chamber is connected to a perimeter air conditioning duct. 5. An air conditioner in which conditioned air from an air conditioner is introduced.
An air inlet is provided under the floor, and this air-conditioned air inlet is
In the lower floor opening opening in the lower space and the perimeter section of the building
Below the floor where the opening on the perimeter side is formed
In the combined air conditioning system of air conditioning and perimeter air conditioning,
The air-conditioning air introduction section is formed below a floor height part where a part of the floor is formed higher than other floor parts, and an air conditioner and a peri-counter are respectively installed in the floor height part, underfloor air conditioning and perimeter conditioning complex air conditioning system, characterized in that communicate with each other and underfloor space and peri counter via conditioned air introducing portion and. 6. conditioned air introduction unit claims, characterized in that it consists of bilevel duct is divided into a lower air to be blown into the upper air and underfloor space blowing conditioned air supplied from the air conditioner to Bae Rimeta unit Item 7. A combined air conditioning system of underfloor air conditioning and perimeter air conditioning according to item 5 . 7. floor between the floor and ceiling - the ceiling between connection duct provided, the ceiling of the air bed - claim, characterized in that the can be supplied to the underfloor space through the ceiling between the connecting ducts 5 Or the combined air conditioning system of underfloor air conditioning and perimeter air conditioning according to claim 6 . 8. An air conditioner in which conditioned air from an air conditioner is introduced.
An air inlet is provided under the floor, and this air-conditioned air inlet is
In the lower floor opening opening in the lower space and the perimeter section of the building
Below the floor where the opening on the perimeter side is formed
In the combined air conditioning system of air conditioning and perimeter air conditioning,
The air-conditioning air introduction section is a duct that is located below the floor height part where a part of the floor is formed higher than the other floor parts, and the air-conditioning air supplied from the air conditioner is sent to the perimeter section. It consists of upper and lower two-layer ducts that divide the upper air to blow out and the lower air to blow out to the underfloor space, and communicates the air conditioner, peri counter, and underfloor space installed at the floor high part via this upper and lower two-layer duct with each other. floor between the bed height portion and a ceiling - floor, characterized in that through the ceiling between the connection duct to be supplied to the lower bed height portions - providing a ceiling between connection duct, the ceiling of the air bed Combined air conditioning and perimeter air conditioning. 9. The air-conditioning air introduction part comprises a cavity formed inside a concrete frame under the floor, and an underfloor opening and a perimeter-side opening are respectively formed in the cavity. Item 7. A combined air conditioning system of underfloor air conditioning and perimeter air conditioning according to item 1. 10. The combined air conditioning system for underfloor air conditioning and perimeter air conditioning according to claim 9, wherein the bottom surface of the cavity is projected below the floor slab. 11. The combined air conditioning system of underfloor air conditioning and perimeter air conditioning according to claim 9 , wherein an air conditioner is housed in the cavity and a storage facility is installed on an upper surface side of the air conditioner. 12. The air into which the conditioned air from the air conditioner is introduced.
An air conditioning inlet is provided under the floor, and this air conditioning
Underfloor opening to underfloor space and perimeter of building
With perimeter-side openings that open to the floor
In the combined air conditioning system of lower air conditioning and perimeter air conditioning
The air-conditioning air introduction section comprises a cavity formed inside a concrete beam under the floor, and an underfloor opening and a perimeter-side opening are formed in this cavity, respectively.
Composite air-conditioning system of the underfloor air conditioning and Perimeter conditioning to. 13. The combined air conditioning of underfloor air-conditioning and perimeter air-conditioning according to claim 12, wherein an upper surface of the hollow portion projects above the floor slab, and a bottom surface of the hollow portion projects below the floor slab. system.