JP2008032255A - Under-floor air-conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an under-floor air-conditioning system capable of preventing feet from being overcooled, and efficiently air-conditioning local environment proximal to a dweller. <P>SOLUTION: The air conditioning system includes a cylindrical under-floor air-conditioning unit 5 stood on an under-floor outlet 4 of a floor 2 for introducing the conditioned air in an air supply chamber 3 into a room 10 to perform local air-conditioning. The under-floor air-conditioning unit 5 is composed of an expandable and contractible air supply duct 6 for guiding the air-conditioned air, a conditioned air outlet 7 formed on a tip portion of the air supply duct 6, and a storage case 8 attachable to a lower face of the floor and receiving the air supply duct 6 in a contracted state in the longitudinal direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a floor blowing air conditioning system that uses a space between a floor and a floor slab as an air supply chamber for air conditioning air and blows conditioned air from below the floor to air-condition the room, and particularly enables local air conditioning. The present invention relates to a floor blowing air conditioning system.

  In recent years, with the progress of computerization and office automation of office spaces, air conditioning has been proposed to ensure a convenient and comfortable office space by smoothly responding to heat generation countermeasures due to frequent layout changes in the office and the increase in OA equipment. Attention has been focused on a floor blowing air conditioning system that blows off air (cold air, warm air) from the OA floor to air-condition the room.

  As such floor blowing air conditioning, a grill type (for example, Patent Document 1) that air-conditions the room by blowing out conditioned air from a floor outlet provided at an appropriate position on the OA floor, and conditioned air is provided on the entire surface of the OA floor. Further, there is known a full-surface floor blowing type (for example, Patent Document 2) that blows out air from a number of blowing holes and air-conditions the room.

  The former grill type is equipped with a diffusion floor outlet that does not give a sense of airflow to the human body, but if there is an outlet near the occupant, cold air blown off at the foot during cooling will stay near the floor. As a result, the feet may be too cold, the distance between the floor outlet and the occupant is limited, and it is difficult to respond to changes in the office layout.

On the other hand, the latter floor blowing type is a structure that blows out air-conditioned air slowly from the entire surface of the OA floor, so there is no direct blowing of cold air on the body during cooling, and there is always a uniform temperature and no air flow feeling It is possible to secure a comfortable space, and it does not cause discomfort for residents who have stayed for a long time. I felt a little unsatisfactory when I wanted a cool feeling.
Also, in the full floor blowout type, those with individual floor blowout openings on the floor are difficult to open and close (control the air volume and direction), and like the grill type described above, the cold air from the feet is a concern. There is a case.
JP 2001-041555 A JP 2002-243204 A

  The present invention has been made in view of the problems of the conventional floor air-conditioning system described above, and can prevent the floor from being too cold and can efficiently air-condition the local environment near the occupant. The purpose is to provide.

  That is, the invention according to claim 1 uses a space between a floor and a floor slab as an air supply chamber, and blows out conditioned air from an air conditioner from the floor outlet of the floor to air-condition the room. In the air conditioning system, the air-conditioning system is provided with a blow-off air-conditioning unit that is erected at the floor outlet and introduces conditioned air in the air supply chamber into the room to air-condition the local area. Air supply duct, air-conditioning air outlet provided at the front end of the air supply duct, and a storage case that can be attached to the lower surface of the floor and stores the air supply duct in a contracted state in the vertical direction It is characterized by comprising.

  In addition, the invention described in claim 2 is characterized in that, in the floor outlet air conditioning system according to claim 1, the outlet is provided with an outlet adjustment mechanism for adjusting the air volume and the direction of the conditioned air. Yes.

  Moreover, the invention of claim 3 is the floor blowing air conditioning system according to claim 1 or 2, wherein the blowout port is provided with a fan that supplements the amount of blown air of the conditioned air. It is characterized by.

  According to a fourth aspect of the present invention, in the floor outlet air conditioning system according to any one of the first to third aspects, a lid is provided at an upper opening of the storage case, and a vent hole is formed in the lid. It is characterized by being provided.

  Further, the invention according to claim 5 is the floor blowing air conditioning system according to any one of claims 1 to 4, wherein the air supply duct is constantly urged to be contracted by an elastic member, In addition, the air outlet is provided with a fixture for fixing the air supply duct to a fixture and holding the supply duct in an extended standing state.

  The invention according to claim 6 is the floor blowing air conditioning system according to any one of claims 1 to 5, wherein the floor is an OA floor composed of a plurality of floor panels. It is said.

  The invention according to claim 7 is characterized in that in the floor blowing air-conditioning system according to any one of claims 1 to 6, the floor blowing air-conditioning system has a plurality of blowing holes for blowing conditioned air over the entire surface of the floor. Yes.

According to the first aspect of the present invention, the air-conditioning air can be blown directly to the occupant's face, body, etc. by adjusting the position of the air outlet by expanding and contracting the air supply duct. Can be prevented from being overcooled, and the local area can be efficiently air-conditioned according to the preference of the resident.
Moreover, when not in use, it is not disturbed by the residents by shrinking it small and storing it in a storage case under the floor.

  Further, according to the second aspect of the invention, by adjusting the air volume and direction of the blown airflow (conditioned air) with the blowout adjustment mechanism, the variation of the air conditioning can be greatly expanded, and the resident's preference You can set the environment accordingly.

  According to the third aspect of the present invention, when the air volume is insufficient, the user can supplement the air volume by operating the fan.

  According to the fourth aspect of the present invention, it is possible to protect the air outlet of the air supply duct stored in the storage case by providing the storage case with a lid. Further, since the lid is provided with a vent hole, the air-conditioned air can be blown out even when the air supply duct is housed, and can function as a conventional grill type floor outlet. The air volume and direction of the blown airflow can be easily adjusted by the blowout adjustment mechanism.

  According to the fifth aspect of the present invention, the air supply duct is biased to a contracted state by releasing the fixing of the fixture to the fixture, so that the air supply duct can be easily stored when not in use. It can be done. The air supply duct can be freely expanded and contracted.

  Moreover, in the invention of Claim 6, the installation position of the blowing air conditioning unit can be easily changed by rearranging the floor panel having the floor outlet.

  Further, in the invention according to claim 7, the entire floor blowing air-conditioning that blows conditioned air from the entire floor efficiently secures a comfortable space without airflow feeling at a uniform temperature, and efficiently localizes according to the resident's preference. Can be air-conditioned.

Hereinafter, embodiments of the invention will be described with reference to FIGS.
FIG. 1 shows a configuration of a blowout air conditioning unit provided in a floor blowout air conditioning system.

  In FIG. 1, reference numeral 1 denotes a floor slab, and an OA floor 2 (floor 2) is disposed on the floor slab 1 at a predetermined interval. The OA floor 2 is formed by laying many square panel blocks on a plane. The space between the OA floor 2 and the floor slab 1 is used for the air supply chamber 3, and conditioned air (cold air or warm air) sent from an air conditioner (not shown) is supplied to the entire area under the floor.

  A floor outlet 4 for blowing out the conditioned air under the floor is provided at an appropriate place on the OA floor 2. In the floor outlet air-conditioning system of this embodiment, a cylindrical outlet air-conditioning unit 5 is provided at the floor outlet 4. The conditioned air flowing under the floor (in the air supply chamber 3) can be blown out into the room 10 (in the living area) through the blowout air conditioning unit 5.

  The blowout air-conditioning unit 5 is configured by a telescopic and bendable air supply duct 6 that guides air-conditioned air, and a storage case 8 that can be stored in a contracted state (folded state). Yes.

  At the upper end of the air supply duct 6, a synthetic resin air outlet 7 is provided for blowing the conditioned air under the floor guided by the air supply duct 6 into the room 10. A louver 9 (blowout adjustment mechanism 9) for adjusting the wind direction) is provided.

The louver 9 is composed of a rotating plate 11 fitted into the air outlet 7 and having an opening at the center thereof, and a plurality of rotatable rectifying plates 12 provided in an armor door shape so as to cover the opening of the rotating plate 11. The air volume can be adjusted by operating the adjustment knob 13 at the end to open and close the rectifying plate 12, and the wind direction can be adjusted by rotating the rotating plate 11 and changing the direction of the rectifying plate 12. ing.
In addition, a battery-driven fan 18 for supplementing the blown air volume is built in the lower part (upstream part) of the louver 9, and the tip of the air supply duct 6 is connected to the outer side of the air outlet 7 as a fixture ( A fixing tool 15 is provided for hooking and fixing to a chair or a desk.

The air supply duct 6 has an outer diameter by joining a soft and thin fabric such as nylon or triacetate, or a flexible material such as a soft resin film or Japanese paper to an elastic member 14 (for example, a coil spring 14) as a framework. The cylinder is configured to be a telescopic and bendable tubular body of about 80 mm, and this tubular body is always biased to a contracted state by a coil spring 14.
In such a non-self-standing duct, the hook 15 provided at the air outlet 7 at the tip is hooked on a chair or a desk (not shown) to hold the air supply duct 6 in an extended standing state. As the fixing tool 15, in addition to hooking by a hook, it can be fixed to a metal surface using a magnet.

  When the fixture 15 is removed from the fixture, the air supply duct 6 is quickly urged to the contracted state (the shape when stored) by the restoring force of the coil spring 14. In addition, when the raw material of a duct has moderate shrinkability, it is possible to shrink | contract using the contractibility of a duct by making it a free state, without joining a framework and a duct raw material.

Further, when a bellows hose made of a stretchable synthetic resin as shown in FIG. 4 is used as a material for the air supply duct 6, a self-supporting duct capable of maintaining a certain shape can be configured.
The diameter of the air supply duct 6 and the length of the contracted state are the same as those of the non-self-standing duct shown in FIG. 1, and the base end of the air supply duct 6 is attached to the bottom of the storage case 8, thereby Any type or self-supporting air supply duct 6 can be used. These air supply ducts 6 can be extended to about 1.2 m from the floor so that conditioned air can be blown out near the head of the human body when seated.

  The storage case 8 is a bottomed cylindrical case made of metal or synthetic resin with a depth of about 80 mm that can store the compressed air supply duct 6 (including the air outlet 7) with the contraction direction vertically. Then, as shown in FIG. 1 (b), the upper opening edge portion is fitted into the floor outlet 4, so that it can be installed in a suspended state on the lower surface of the OA floor 2.

  Further, the side and bottom of the storage case 8 are made of a metal mesh or a metal frame as shown in FIG. 2 so that conditioned air can easily flow in the case under the floor. An openable / closable lid 16 (20) for protecting the outlet 7 of the air supply duct 6 accommodated therein is provided.

  The lid includes a sealed lid 16 shown in FIG. 3 (a) and a blow grill-type lid 20 provided with a lattice-like vent hole 17 shown in FIG. 3 (b). be able to. In the blow grill type, the louver 9 of the blowout port 7 is opened, so that the conditioned air can be blown out while the air supply duct 6 is stored. When the air supply duct 6 is used, as shown in FIG. 1 (c), the cover 20 (16) of the storage case 8 is opened and the air supply duct 6 stored in a contracted state is pulled out to extend / Stand up.

As shown in FIG. 5, the air-conditioning unit 5 having the above-described configuration is configured to extend / bend the air supply duct 6 to set the air outlet 7 at an arbitrary position, and to blow out the blown airflow directly to the occupant's face or body. Can be made. Thereby, it is possible to prevent the feet from being too cold and to efficiently air-condition the local area according to the resident's preference.
At this time, by adjusting the flow rate and direction of the blown airflow with the louver 9, variations in local air conditioning can be greatly expanded, and when the airflow is insufficient, the user operates the fan 18. Since the air volume can be supplemented, a personal environment can be set according to the resident's preference.

Further, when the blowout air conditioning unit 5 is not used, as shown in FIG. 1 (b), it can be shrunk and stored in the storage case 8 under the floor, so that it does not disturb the resident. If the cover 16 (20) is provided after the storage, there is no inconvenience that the air outlet 7 of the air supply duct 6 is stepped on and damaged.
Further, since the vent 20 is provided in the lid 20, air-conditioned air can be blown out in a state where the air supply duct 6 is not pulled out from the storage case 8 and is stored as a conventional grill type floor outlet 4. Can function. Also in this case, the air volume and direction of the blown airflow can be freely adjusted by the louver 9 of the air outlet 7.

  The blowout air conditioning unit 5 according to the present embodiment is also applicable to a full floor blowout type air conditioner that blows conditioned air from a number of blowout holes (not shown) provided on the entire surface of the OA floor to air-condition the room. In addition, the air blowing unit 5 can efficiently air-condition a local area according to the occupant's preference while ensuring a comfortable space without airflow at a uniform temperature by the entire floor air blowing.

Next, FIGS. 6 and 7 show another embodiment different from the blowing air conditioning unit 5.
In addition, in order to simplify description, the same code | symbol was used about the part (member) which is common in the above-mentioned embodiment in the following description.

  As shown in FIG. 6, the blowout air-conditioning unit 25 of the present embodiment includes a telescopic air supply duct 26 that guides conditioned air from the air supply chamber 3 under the floor, and the upper end of the air supply duct 26, as in FIG. 1. And a storage case 28 that can be stored in the vertical direction with the air supply duct 26 contracted, and is used by being erected on the floor outlet 4 of the OA floor 2. is there.

The air supply duct 26 is formed in a cylindrical shape capable of self-supporting by joining a band-shaped member made of synthetic resin or the like in a spiral shape. For the joint portion 19, for example, a slidable engagement mechanism as shown in FIGS. 7A to 7C can be adopted.
The air supply duct 26 can extend up to about 1.2 m from the floor so that conditioned air can be blown out near the head of the human body when seated.

  6D, as shown in the front view (A) of the air outlet 27, a semicircular cavity is formed in the air outlet 27, and a rotatable rotating cylinder 23 is provided in the cavity. Yes. By rotating and operating the rotating cylinder 23 to open and close the semicircular opening 24 opened to the side, the wind direction and the air volume of the blown airflow can be adjusted. A side view (B) of the air outlet 27 shows a state in which the opening 24 is fully opened, and a side view (C) shows a state in which the opening 24 is closed. Although not shown, it is also possible to incorporate a battery-driven fan for supplementing the amount of blown air at the lower part (upstream part) of the rotating cylinder 23.

  When the blowout air-conditioning unit 25 is not used, as shown in FIG. 6A, a spiral air supply duct 26 is wound around and stored in a cylindrical storage case 28 and stored under the floor (on the floor slab 1). Keep it. At this time, the air outlet 27 of the air supply duct 26 also serves as the lid of the floor air outlet 4.

A pair of opposing support pieces 21, 21 are provided at the bottom edge of the storage case 28, while the support piece 21 can be hooked around the periphery of the floor outlet 4 on the lower surface of the OA floor 2. An L-shaped hook 22 is attached.
When the blowout air conditioning unit 25 is used, as shown in FIG. 6 (b), the storage case 28 containing the air supply duct 26 is pulled up and rotated from below the floor, and the support piece 21 of the storage case 28 is attached to the hook metal fitting 22. The storage case 28 is attached to the floor outlet 4 of the OA floor 2 by hanging. In this state, as shown in FIG. 6C, the air supply duct 26 wound in a spiral shape is pulled out and extended to a desired size.

  As described above, the air-conditioning unit 25 according to the present embodiment also allows the air-conditioning air to be directly blown to the occupant's face, body, or the like by expanding and contracting the air supply duct 26 and setting the air outlet 27 at an arbitrary position. Therefore, it is possible to prevent the feet from being too cold and to efficiently air-condition the local area according to the occupant's preference. Of course, the present invention is also applicable to the above-described full-floor blowing type air conditioning.

It is sectional drawing which shows the structure of the blowing air-conditioning unit by this invention, (a) shows the state by which the air supply duct was extended, (b) shows the state in which the air supply duct was accommodated, (c) is air supply The state where the duct is pulled out is shown. The perspective view which shows the storage case different from FIG. (A), (b) is a perspective view which shows the example of the cover of a storage case, (c) is a perspective view which shows an open cover state. The figure which shows the example of the air supply duct different from FIG. The figure which shows the state which expanded / contracted and bent the air supply duct. It is sectional drawing which shows the structure of the blowing air conditioning unit different from FIG. 1, (a) shows the state in which the air supply duct was accommodated, (b) shows the state which attaches a storage case to a floor outlet, (c ) Shows a state where the air supply duct is pulled out, and (d) shows a state where the air supply duct is extended. (A)-(c) is sectional drawing which shows the structural example of the junction part of an air supply duct.

Explanation of symbols

1 floor slab 2 floor (OA floor)
DESCRIPTION OF SYMBOLS 3 Air supply chamber 4 Floor outlet 5, 25 Air-conditioning unit 6, 26 Air supply duct 7, 27 Air outlet 8, 28 Storage case 9 Air adjustment mechanism (louver)
10 Indoor 14 Elastic member (coil spring)
15 Fixing tool (hook, magnet)
16, 20 Lid 17 Vent 18 Fan

Claims (7)

In the floor blowing air conditioning system that uses the space between the floor and the floor slab as an air supply chamber and blows out the conditioned air from the air conditioner from the floor blowing outlet of the floor to air-condition the room,
A blow-out air conditioning unit that is erected at the floor outlet and introduces conditioned air in the air supply chamber into the room to air-condition the local area,
The blow-out air conditioning unit is attachable to a telescopic air supply duct for guiding air-conditioned air, an air-conditioning air outlet provided at a front end of the air supply duct, and a lower surface of the floor, and is in a contracted state. A floor blowing air-conditioning system comprising a storage case for storing the air supply duct in a vertical direction. The floor blowout air conditioning system according to claim 1, wherein a blowout adjustment mechanism that adjusts an air volume and a wind direction of the conditioned air is provided at the blowout outlet. The floor blowout air conditioning system according to claim 1, wherein a fan that supplements the blown air volume of the conditioned air is provided at the blowout outlet. The floor blowing air conditioning system according to any one of claims 1 to 3, wherein a lid is provided in an upper opening of the storage case, and a vent hole is provided in the lid. The air supply duct is always urged in a contracted state by an elastic member, and a fixture for fixing the air supply duct to a fixture and holding it in an extended standing state is provided at the outlet. The floor blowing air conditioning system according to any one of claims 1 to 4, wherein the floor blowing air conditioning system is provided. The floor blowing air conditioning system according to any one of claims 1 to 5, wherein the floor is an OA floor composed of a plurality of floor panels. The floor blowing air conditioning system according to any one of claims 1 to 6, further comprising a plurality of blowing holes for blowing conditioned air over the entire surface of the floor.

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