JPH076647B2 - Floor blowout air conditioner - Google Patents

Description

TECHNICAL FIELD The present invention relates to a floor blowing air conditioner provided on a free access floor having a double floor structure.

[Prior Art] In recent years, as offices and other offices have become more OA-oriented, double-floor structure free access floors have been adopted to allow a large amount of wiring to be freely changed with changes in the layout of OA equipment, computers, etc. Although the number of examples is increasing, the work environment is getting worse due to the heat generated from the equipment. Therefore, it is required at the same time to improve the comfort of the occupants in the room.

To improve indoor comfort and effectively use the space under the floor,
A floor blowout air conditioner for sending air for air conditioning from the upper floor plate of the free access floor to the room is known as shown in FIG.

In the figure, 101 is an office room where OA equipment and the like are installed, and as the floor of this office room 101, a free access floor 104 of a double floor structure in which an upper floor plate 103 is arranged on a lower floor 102 is adopted. ing. The upper floor plate 103 of the free access floor 104 is provided with floor openings 105, 105, while the ceiling 107 constituting the lower portion of the chamber 106 is provided with ceiling suction ports 108, 108. Upper floor board 1 above
03 has partitions 109,109.

And the free access floor 104 of the office room 101
The air supply port 104A and the air discharge port 106A of the chamber 106 are connected by a duct 111 in which an air conditioner 110 is interposed.

Then, the warm air or the cool air from the air conditioner 110 is transferred to the upper floor plate 103.
Between the upper floor board 103 and the lower floor 102, and is blown into the office room 101 through the floor openings 105, 105 of the upper floor board 103.

[Problems to be Solved by the Invention]

However, in the conventional floor air-conditioning system, since the floor opening 105 is provided in the upper floor plate 103, in order to spread the cold air or the warm air throughout the office room 101, the cold air or the warm air must be directed upward. Therefore, it is necessary to blow out strongly as an air flow, so that the air flow directly comes into direct contact with the human body, and the feeling of receiving the air flow was not always good.

In addition, especially when air conditioning is performed during the summer, cold air will not open the floor 105.
Supplied into office room 101 from the floor opening 1
Since 05 is provided on the upper floor plate 103, this cold air is accumulated in the lower layer, the temperature of the lower layer in the office room 101 is always low, and the temperature distribution in the office room 101 cannot be made uniform.

Further, when the layout of the office room 101 is changed, the floor opening 105 together with the partition 109 must be moved to an optimum position of the upper floor board 103, and the floor opening 105 is usually fixedly installed on the upper floor board 103. Therefore, a series of work from removal to installation was troublesome.
As a result, the flexibility to change the layout was poor.

Further, since the floor opening 105 is exposed to the upper floor plate 103, the floor opening 105 is an obstacle when changing the layout, and it is not possible to place equipment, desks, etc. at appropriate positions, and flexibility in changing the layout. Was bad.

The present invention has been made to solve the above-mentioned problems, and its object is to make the air flow of warm air or cold air supplied to the room through the floor opening comfortable and to make the temperature distribution in the room uniform. Further, it is another object of the present invention to provide a floor blow-out air conditioner that improves flexibility in changing the layout even when the layout is changed.

[Means for Solving the Problems]

In order to achieve the above object, the present invention is a floor blowout air conditioner for guiding warm air or cold air from an air conditioner between an upper floor plate and a lower floor of a double floor and supplying the same indoors through a floor opening provided in the upper floor plate. , Having either an internal space to which warm air or cold air is supplied from the inside of the double floor through the floor opening, and either cold air or warm air through a cold air outlet formed on the upper side or a warm air outlet formed on the lower side A partition is provided on the upper floor plate to blow one of the two from the inner space into the room.

[Action]

In the present invention, during cooling such as in the summer, cool air is blown into the room from the inside of the double floor through the cool air outlet formed on the upper side of the partition, and this cool air becomes a downward airflow and travels to the lower layers of the room. Flowing.

At the same time, when cold air passes through the partition, radiant heat is radiated from the partition cooled by the cool air to perform radiative cooling.

On the other hand, during heating such as winter, warm air is blown from the inside of the double floor to the room through the warm air outlet formed on the lower side of the partition,
This warm air becomes an upward airflow and flows toward the upper layers of the room.

At the same time, part of the warm air is blown out from the cool air outlet formed on the upper side of the partition to warm the partition, so that radiant heat is radiated from the partition to perform radiant heating.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

1 to 10 show a floor blowing air conditioner according to an embodiment of the present invention.

FIG. 1 shows the entire floor blow-out air conditioner of the present embodiment. In the figure, 1 is an office room where OA equipment and the like are installed.
As the floor of this office room 1, a free access floor 4 having a double floor structure in which an upper floor board 3 is arranged on a lower floor 2.
Has been adopted. The upper floor plate 3 of the free access floor 4 is provided with a floor opening 5 which will be described in detail later.
On the other hand, a ceiling suction port 8, 8 is provided in a ceiling 7 which constitutes a lower portion of the chamber 6. Further, a partition 9 which will be described later in detail is provided on the upper floor plate 3 along the floor opening 5.

The air supply port 4A of the free access floor 4 of the office room 1 and the air discharge port 6A of the chamber 6 are connected by a duct 11 in which an air conditioner 10 is interposed. The air conditioner 10 supplies cold air or warm air between the upper floor plate 3 and the lower floor 2.

In FIG. 2 and FIG. 3, the upper floor board 3 is a surface finishing material 13 composed of a plurality of square-shaped panels 12 continuously arranged vertically and horizontally, and a carpet that entirely covers these panels 12. It consists of and. The surface finishing material 13 is composed of a plurality of square-shaped surface finishing unit materials 14A, 14B, 14C, etc. which are continuously arranged vertically and horizontally, and the surface finishing unit materials 14A, 14B, 14C, etc. have the same size as the panel 12. It has become. The upper floor plate 3 is supported by the lower floor 2 made of a concrete slab via a number of supporting members 15.

As shown in FIG. 5, in all of the above-mentioned panels 12, a group of opening small holes formed by collecting a large number of opening small holes 16 for blowing air.
17 are provided, and the outline 18 of the opening small hole group 17 indicated by the chain double-dashed line forms a cross-shaped outline pattern.

On the other hand, the surface finishing unit materials 14A, 14B, 14C, etc.
Air supply ports of various shapes such as L-shape and T-shape are provided. Surface finishing unit material having these air supply ports
When 14A, 14B, 14C, etc. are respectively placed and fixed on the panel 12, air supply ports for these surface finishing unit materials 14A, 14B, 14C, etc., and part of the opening small hole group 17 of the panel 12 Alternatively, they all overlap and form part of the floor opening 5 of FIG.

For example, in FIG. 5, a surface finishing unit material 14A having an air supply port 19A whose length is slightly shorter than one side is
When placed on the panel 12, the air supply port 19A of the surface finishing unit material 14A and a part of the opening small hole group 17 of the panel 12 overlap each other, and a linear air supply of a predetermined length of the surface finishing unit material 14A is provided. The mouth 19A forms part of the floor opening 5 of FIG.

In FIG. 6, when the surface finishing unit material 14B having the air supply port 19B whose length is slightly shorter than half of one side is placed and fixed on the panel 12, the surface finishing unit material 14
The air supply port 19B of B and a part of the opening small hole group 17 of the panel 12 overlap, and the air supply port 19B of the surface finishing unit material 14B forms a part of the floor opening 5 of FIG.

In FIG. 7, when the surface finishing unit material 14C having the L-shaped air supply port 19C is placed and fixed on the panel 12, the air supply port 19C of the surface finishing unit material 14C and the opening of the panel 12 are shown. Part of the small hole group 17 overlaps, and the L-shaped air supply port 19C of the surface finishing unit material 14C forms a part of the floor opening 5 in FIG.

In FIG. 8, when the surface finishing unit material 14D having the cross-shaped air supply port 19D is placed on and fixed to the panel 12, the air supply port 19D of the surface finishing unit material 14D and the opening of the panel 12 are small. The hole group 17 is entirely overlapped, and the cross-shaped air supply port 19D of the surface finishing unit material 14D forms a part of a floor opening (not shown).

In FIG. 9, an air supply port is not formed in the surface finishing unit material 14E.
When E is placed and fixed on the panel 12, the entire group of opening small holes 17 of the panel 12 is hidden as shown by the dotted line.

When the surface finishing unit materials 14A, 14B, 14C, 14E and the like are appropriately combined and placed on each panel 12 and fixed, the surface finishing unit materials 14A, 14B, 14C and the like air supply ports 19A, 19B, 14C.
One pattern is continuously formed as a whole, and as an example, a floor opening 5 is formed in the shape of a straight line extending to the upper right side of the gate shape as shown in FIG.

Then, as shown in FIG. 2, a partition 9 having a height up to the middle of the office room 1 is arranged along the periphery of the floor opening 5 in a plan view. The partition 9 is constructed by arranging a plurality of partition units 20 shown in FIG. 4 in series, and the details of the structure of the partition unit 20 are described in the third section.
This is shown in FIGS. In the figure, the partition unit 20 includes a pair of plate members 23, 23 facing each other with an internal space 22 to which cold air or warm air is supplied from a space 21 between the upper floor plate 3 and the lower floor 2. An appropriate number of spacers 24 are sandwiched between the pair of plate members 23, 23, the bolt 25 is penetrated into the spacer 24, and the nuts 26 are tightened, so that the pair of plate members 23, 23 are separated by a predetermined distance. Are held in parallel. L-shaped angle members 27, 27 are fixed by welding to the lower ends of the plate members 23, 23, respectively.
A plate piece 28 is placed on the above, and by pressing this plate piece 28 with bolts 29, 29 penetrating the opening small holes 16, 16 of the panel 12,
The partition unit 20 is fixed to the upper floor plate 3.

A warm air outlet 30 including a slit hole 30B is formed at the bottom of each plate member 23. The cut piece 30A formed simultaneously with the processing of the slit hole 30B faces obliquely downward. An open / close plate 31 is rotatably supported on the upper side of the warm air outlet 30 of each plate 23, and the tip end of the open / close plate 31 is made of a shape memory alloy, a bimetal or the like provided on the plate 23. The member 32 has a structure that opens and closes according to the temperature.

Further, a lid member 34 having an inverted triangular cross section is provided on the upper end of the partition unit 20 via a holding member 33 fixed thereto so as to be slidable so as to stop at an arbitrary position in the vertical direction.
And the upper end 23A of the plate member 23, the cool air outlet 35 that blows out cool air
Are formed. By moving the lid member 34 in the vertical direction, the amount of cold air blown out from the cold air outlet 35 is adjusted.

Next, the operation of this embodiment will be described.

FIG. 1 shows a state during cooling such as summer, and at this time, in each partition unit 20 (shown in FIG. 3), the elastic members 32, 32 contract and the opening / closing plates 31, 31 rotate downward. , Is open. Therefore, the cool air passes through the internal space 22 of the partition unit 20.

Then, cool air is sent from the air conditioner 10 to the space 21 through the duct 11, and the cool air is blown upward from the space 21 into the office room 1 through the cool air outlet 35 of each partition unit 20 of the partition 9. After that, the cold air flows downward into the office room 1, and the temperature on the upper layer side in the office room 1 decreases, so that the temperature distribution becomes uniform throughout the office room 1.

At the same time, when cold air passes through the partition 9, radiant heat is radiated from the partition 9 cooled by the cold air to perform radiative cooling.

On the other hand, the state during heating such as winter is shown in FIG.
At this time, in each partition unit 20 (shown in FIG. 3), the elastic members 32, 32 are extended and the opening / closing plates 31, 31 are pivoted upward to be in the closed state. Therefore, the warm air introduced into the internal space 22 of the partition unit 20 is blocked by the opening / closing plates 31 and 31 and cannot pass above the warm air, which warms the surface of the partition unit 20.

Then, the warm air is sent from the air conditioner 10 to the space 21 through the duct 11, and this warm air is cut from the space 21 through the warm air outlet 30 of each partition unit 20 of the partition 9 and the cut piece 30A.
While being guided by, the office room 1 blows downward into the office room 1 and then becomes an upward airflow.
Flowing inward, the temperature on the lower layer side in the office room 1 rises, and the temperature distribution becomes uniform over the entire office room 1.

At the same time, when a part of warm air passes through the partition 9, radiant heat is radiated from the partition 9 warmed by the warm air to perform radiant heating, which has a secondary effect on heating.

According to the above configuration, the cold air outlet 35 and the warm air outlet
30 is provided in the partition 9, the cool air flows from the cold air outlet 35 on the upper side of the partition 9 toward the lower layer side in the office room 1, and the warm air from the warm air outlet 30 on the lower side of the partition 9 in the office room 1. Because it flows toward the upper layer side in 1,
As compared with the conventional example in which the floor opening 105 shown in FIG. 11 is provided in the upper floor plate 103 and cool air or warm air is blown into the office room 101 from the lower side to the upper side as an airflow, the blowing speed of the cool air or the warm air is increased. Even if it is late, cold air or warm air naturally spreads throughout the office room 1.
Further, the supply range of the cool air outlet 35 and the warm air outlet 30 can be widened, and the cool air or the warm air can be blown out over a wide range. Therefore, the cold air or the warm air blown out from the cool air outlet 35 or the warm air outlet 30 can be weakly touched by the human body and the feeling of receiving the airflow can be improved.

Further, during cooling in the summer, cold air is supplied from the cool air outlet 35 on the upper side of the partition 9, and this cold air is supplied to the office room 1.
Flows toward the lower layer side of the inside, and the temperature of the upper layer side in the office room 1 is also lowered, and the temperature distribution in the office room 1 can be made uniform throughout. Moreover, in combination with this, since the radiation cooling is performed from the partition 9, the occupants in the office room 1 can be cooled.

On the other hand, during heating such as in winter, warm air is supplied from the warm air outlet 30 on the lower side of the partition 9, and this warm air is supplied to the office room 1
Flows toward the upper layer side of the inside, the temperature of the lower layer side in the office room 1 also rises, and the temperature distribution in the office room 1 can be made uniform throughout. Moreover, together with this, part of the warm air is sent to the partition 9 and the radiant heating is performed from the partition 9. Therefore, the office room 1
It can give warmth to the residents inside.

Furthermore, when the layout of the office room 1 is changed, if the positions of the partition 9 and the floor opening 5 are moved,
Since the positions of the cold air outlet 35 and the warm air outlet 30 are changed, the floor opening 105 fixed to the upper floor plate 103 in the conventional example shown in FIG. 11 is removed and moved to another place of the upper floor plate 103. Installation work can be eliminated. As a result, when changing the layout, the flexibility of changing the layout can be secured without special consideration of the movement of the floor opening 5 as described above.

In addition, since the partition 9 is provided with the cold air outlet 30 and the warm air outlet 35, the floor opening 5 is not exposed on the upper floor plate 3, and therefore, when changing the layout, equipment, desks, etc. can be placed on the floor. There is an effect that it can be arranged at an appropriate position without being obstructed by the opening 5 and the flexibility of layout change can be secured.

In the present embodiment, the cuppet is used as the surface finish material 13, but the invention is not limited to this, and tiles can be used, for example.

Further, in this embodiment, all the panels 12 are provided with the opening small hole group 17 including the large number of opening small holes 16 for blowing air, but it can be used as the floor opening of the upper floor board 3. It can be configured such that the opening small hole group is not provided in a part of the panel having no property.

Further, in this embodiment, the surface finishing unit material 14A,
14B, 19C, 14E, etc. are appropriately combined and placed on each panel 12 and fixed to fix the surface finishing unit materials 14A, 14E.
Although the air supply ports 19A, 19B, 19C, etc. of B, 19C, etc. are continuously formed, a floor opening 5 having a shape in which a straight portion is extended to the upper right side of the gate type as shown in FIG. The shape of the floor opening is not limited to the above shape, and various floor opening shapes can be arbitrarily combined according to the layout requirements. For example, surface finishing unit material 14
It is also possible to arrange A in a row laterally to form a linear floor opening.

In the present embodiment, the opening / closing plate 31 has a structure that automatically opens and closes according to the temperature by the expansion / contraction member 32 made of a shape memory alloy, bimetal or the like. It is also possible to have a structure that allows it.

Further, in the present embodiment, the partition 9 has a height up to the middle of the office room 1. However, instead of the partition 9, the partition 9 has a height up to the ceiling and a cool air outlet is provided at the top. It is also possible to use formed partitions. Even in such a case, the same operation as in the present embodiment,
Produce an effect.

Further, in the present embodiment, the cut piece 30A is directed obliquely downward, but it can also be directed horizontally.

In addition, in the present embodiment, an appropriate number of spacers 24 are sandwiched between the pair of plate members 23, 23, the bolts 25 are passed through the inside of the spacers 24, and the nuts 26 are tightened. The plate members 23, 23 are held in parallel at a predetermined distance, but without using the spacer 24, the bolt 25, and the nut 26, by spot welding the plate-shaped bracket sandwiched between them, The plate members 23, 23 can be held in parallel at a predetermined distance.

〔The invention's effect〕

As described above, according to the present invention, the cool air outlet and the warm air outlet are provided in the partition, and the cool air flows from the cool air outlet on the upper side of the partition toward the lower layer side of the room, and the lower part of the partition. Since warm air flows from the side warm air outlet toward the upper layer side of the room, a floor opening is provided on the upper floor plate to cool air or warm air into the room from the bottom to the top, and blows it out as compared with the conventional example. Therefore, even if the blowing speed of cold air or warm air is slow, the cold air or warm air naturally spreads throughout the room. Further, the supply range of the cold air outlet and the warm air outlet can be widened, and the cool air or the warm air can be blown out over a wide range. Therefore,
The cold air or the warm air blown out from the cold air outlet or the warm air outlet can weakly touch the human body and improve the feeling of receiving the airflow.

Also, during cooling in the summer, etc., cool air is supplied from the cool air outlet on the upper side of the partition, this cool air flows toward the lower layer side of the room, the temperature of the upper layer side of the room also decreases, and the temperature distribution in the room is made as a whole. It can be made uniform. At the same time, since radiation cooling is performed from the partition, it is possible to give coolness to the occupants in the room together with this.

On the other hand, during heating such as in winter, warm air is supplied from the warm air outlet on the lower side of the partition. It can be made uniform. At the same time, since a part of warm air is sent to the partition, radiant heating is performed from the partition, and together with this, comfortable warmth can be given to the occupants in the room.

Further, when changing the layout of the room, if the positions of the partition and the floor opening are moved, the positions of the cold air outlet and the warm air outlet are changed accordingly, so that the floor opening fixed to the upper floor plate in the conventional example is changed. It is possible to eliminate the work of removing and moving it to another place on the upper floor board and installing it. Consequently, when changing the layout, the flexibility of changing the layout can be secured without special consideration of the movement of the floor opening as described above.

In addition, since the partition has cold air outlets and warm air outlets, the floor opening is not exposed on the upper floor plate, so that equipment, desks, etc. are not obstructed by the floor opening when changing the layout. It is possible to arrange at an appropriate position, and it is possible to secure the flexibility of layout change.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing a state in the summer, relating to the entire floor blowout air conditioner according to the embodiment of the present invention. FIG. 2 is a plan view of the upper floor board and partition of FIG. FIG. 3 is a sectional view taken along the line II-II in FIG. FIG. 4 is a perspective view of the partition unit of FIG. FIGS. 5 to 8 are explanatory views showing a form in which the panel shown in FIG. 2 and panel surface finishing unit materials of various shapes are combined. FIG. 9 is an explanatory view showing a state in which the panel of FIG. 2 and a surface finishing unit material having no air supply port are combined. FIG. 10 is an explanatory diagram showing a usage state in the winter of this embodiment. FIG. 11 is a partial cross-sectional view showing the whole conventional floor-blowing air conditioning system. [Explanation of symbols of main parts] 1 …… Office room 2 …… Lower floor 3 …… Upper floor plate 4 …… Free access floor 5 …… Floor opening 9 …… Partitioner 10 …… Air conditioner 30 …… Hot air outlet 35: Cold air outlet.

Claims (1)

[Claims] 1. A floor blow-out air conditioner for guiding warm air or cold air from an air conditioner between an upper floor plate and a lower floor of a double floor and supplying the air indoors through a floor opening provided in the upper floor plate. There is an internal space to which warm air or cold air is supplied through the opening, and either cold air or warm air is supplied from the internal space to the room through the cold air outlet formed on the upper side or the warm air outlet formed on the lower side. A floor blowout air-conditioning device, characterized in that a partition for blowing out to the above is provided on the upper floor plate.