JPH0436538A - Under-floor air conditioner - Google Patents

Abstract

PURPOSE:To make a uniform formation of conditioned air by a method wherein a hindering item capable of gradually narrowing an under-floor spacing is disposed under the floor, a major diffuser is disposed at a location where the widest under-floor spacing is attained and at the same time a plurality of diffuser for use in communicating the under-floor spacing with an indoor spacing are formed. CONSTITUTION:Horizontal floor surfaces 11, 12 and 13 having different heights are disposed at a floor 1 of a raised floor structure in a form of upstairs. Inhibiting items 51, 52 and 53 are disposed below in correspondence with these floor surfaces 11, 12 and 13. An air conditioning diffuser 2 is disposed in an under-floor spacings S1 of the floor surface 11, and then the small diffusers 3 to cause under-floor spacings S1, S2 and S3 to be communicated with an indoor spacing A is formed at each of the floor surfaces 11, 12 and 13, respectively. In this way, the condition air blown from the main diffuser 2 is smoothly flowed along the under-floor spacings S1 to S3 and then the air can be blown from each of the diffusers 3 into the indoor spacing A. In addition, since the under-floor spacings S1 to S3 are continuously narrowed as they are away from the main diffusers 3, it is possible to make a substantial uniform formation of an air blowing pressure for air conditioning operation blown from each of the small diffusers 3 without being related to a flow rate of air, but to prevent an occurrence of disturbance in temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an underfloor air conditioner suitably used in offices and the like.

[Conventional technology] Air conditioning systems in buildings transport conditioned air whose temperature and pressure are controlled in an air conditioning room through ducts routed in the ceiling, etc., and from the ceiling of each room or a wall near the ceiling to the indoor space. It is customary to make it blow out.

By the way, in recent years (7) with the progress of OA, offices, etc. are dealing with an extremely large number of wirings, and if no measures are taken, these wirings will be mixed up, causing slow speeds, This will lead to a situation that goes out of control. In view of this situation, in order to store and lay out the wiring without getting in the way, a floor has been developed in which the entire interior of the room has a raised floor structure and the space under the floor is used as a space for wiring.

Therefore, by using such a floor, the air-conditioning air transferred through the duct is guided into the underfloor space and blown out from the main outlet, and a small outlet is provided at an appropriate location on the floor, so that the air blown out from the main outlet is An underfloor air conditioner is being considered that can guide air to the floor through its outlet openings.

[Problems to be Solved by the Invention] However, when configuring such an underfloor air conditioner, if the main outlet is provided in the underfloor space near the center of the room, where it is considered to be most effective, the air conditioning air will flow through the main outlet. In order to transport the cables, a duct must be laid from the wall of the room along the underfloor space to the center of the room, which creates the inconvenience of blocking the wiring space. Therefore, the only way to avoid this inconvenience is to provide the main air outlet in the underfloor space near the wall. However, when the air conditioning air is blown out from this position, the flow rate of the air conditioning air flowing through the underfloor space decreases as it moves away from the main outlet, and depending on the location, the blowing pressure may be insufficient and the air conditioning air cannot be effectively flowed from the outlet outlet onto the floor. Air will no longer be blown out. As a result, a problem arises in that temperature unevenness tends to occur indoors in a planar direction.

Note that if relatively small-diameter branch ducts are connected to each of the outlet openings, and air conditioning air can be directly supplied to each outlet outlet through these ducts, the above-mentioned outlet openings can be improved. It is possible to eliminate surplus and shortage. However, if you do this, if you try to change the position of the outlet, it will be necessary to replace or modify the duct.
A problem arises in that large-scale construction work is required.

The present invention aims to effectively solve such problems.

[Means for Solving the Problems] In order to achieve the above object, the present invention takes the following measures.

That is, in the underfloor air conditioner according to the present invention, obstacles that can gradually narrow the underfloor space are arranged under the floor of a raised floor structure, and the main outlet for air conditioning air is arranged at the widest position of the underfloor space. The present invention is characterized in that a plurality of air outlet openings are formed in the floor to connect the underfloor space with the indoor space along the narrowing direction of the underfloor space.

In order to be able to easily change the position of the air outlet, the floor should be made up of multiple compatible floor elements of standard dimensions, and the air outlet should be provided on a specific floor element. good.

As for specific aspects of the raised floor structure, in addition to forming a horizontal floor surface of a constant height throughout the room, the raised floor structure floor is provided in a stair-like manner to form multiple horizontal floor surfaces of different heights. It's okay. In this case, the obstacles may be arranged in the underfloor space of each horizontal floor surface.

A particularly preferred mode of use of this underfloor air conditioner is when the room is divided into a plurality of zones based on differences in floor height.

The shape of the obstacle may be one in which the top surface is a continuous slope, or one in which the top surface is stepped.

[Operations] With such a configuration, the air blown from the main outlet can be guided into the indoor space through the outlet openings without blocking the wiring space. Moreover, the space under the floor formed between the obstacle and the floor narrows as the distance from the main outlet increases, so regardless of the flow rate,
It becomes possible to approximately equalize the blowing pressure at each blowing outlet.

[Example 1] Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 5.

As shown in Fig. 1, this underfloor air conditioner has horizontal floor surfaces 11, 12, 13 of different heights arranged in a stair-like manner on a floor 1 of a raised floor structure. Obstacles 57.5□ and 53 are placed below. and,
A main outlet 2 for air conditioning air is arranged in the underfloor space Sl of the floor 11, and an outlet for communicating the underfloor spaces S, S2, and S3 with the indoor space A is provided in the floor 11, 12, and 13 of each stage. 3 is formed. In addition, along with this, floor surface 1□ and floor surface 12
An auxiliary outlet 4 is also formed in the stepped portion 1a between the floor surfaces 1□ and the stepped portion 1b between the floor surface 1□ and the floor surface 13.

To be more specific, the floor surfaces 1 to 13 have a standard-sized floor element 11 with a surface material 11b attached to the top surface of an aluminum die-cast panel 11a as shown in FIG. 2 as a basic unit. , while supporting this floor element 11 on the legs 12,
A large number of them are laid out in a horizontal direction to form sections. The legs 12 are fastened to insert nuts (not shown) that are buried in the building structure floor a during concrete pouring, and have an adjuster function, so that the legs 12 are fixed to the floor surfaces 1 to 13 of each stage. An appropriate support height for the floor element 11 can be set in accordance with the height above the floor. Also,
Even after each floor element 11 has been completely laid down, it can be taken out using a suction handle or the like as appropriate, so that it can be interchanged with floor elements 11 at other locations.

The obstacle 5 is a plate member 51 as shown by the imaginary line in FIG.
This plate member 51 is arranged below the floor element 11, avoiding the legs 12, and closing the gaps with other plate members 51 as much as possible. In particular, in the direction of the stairs, their end surfaces are arranged adjacent to each other without any gaps, and the slopes 51a formed on the upper surfaces of the plate members 51 are connected to extend the underfloor space S1 between the floor surface 1□ along the direction of the stairs. so that it can be narrowed continuously. Also, obstacles 5□ (53)
The same applies to the underfloor space S2 (S3) between the slope 52a (53a) and the floor surface 12 (13).
can be narrowed continuously along the direction of the stairs.

In addition, the space under the floor, the space between S1.82 and the space under the floor S2.83
Even in between, we ensure that their continuity is not lost.

On the other hand, in this indoor space A, a duct b for transporting air-conditioning air routed from an air-conditioned room (not shown) opens on a wall d near the ceiling C, and this duct b penetrates the floor surface 1. The lower end 21a of the auxiliary duct 21 is connected to the main air outlet 2. This main outlet 2 has 1
It is a pipe-shaped pipe that is arranged in a direction perpendicular to the plane of the paper along the underfloor space S1 near the wall of the floor surface 11 of the tier, and has a large number of blow-off holes opening toward the center of the room in the longitudinal direction. There is.

Further, the air outlet openings 3 formed in the floor surfaces 11 to 13 of each stage are formed by a hollow cylindrical frame attached to a through hole 11c provided in the floor element 11, as shown in FIGS. 3 and 4. Member 31
A cover member 32 having a radial slit 32a attached to the upper end of this frame member 31, an adjustment screw 33 rotatably attached to this cover member 32, and a guide rod screwed and held by this adjustment screw 33. 34, and a plate member 35 that is attached to and detached from the lower end opening 31a of the frame member 31 while moving up and down along the lower end opening 31a of the frame member 31. It is designed to be able to communicate with indoor space A. By operating the adjustment screw 33, the vertical position of the plate member 35 can be changed and the effective opening area can be adjusted.

Furthermore, the stepped portion 1a between the floor surfaces 1□ and 1□, and the floor surface 1□
As shown in FIG. 5, the auxiliary outlet openings 4 formed in the step portions 1b between the steps 1a and 13 are disposed so as to cover the step portions 1a and 1b, and have a large number of slits 4 along the longitudinal direction.
A fixing plate member 41 with openings arranged in the form of slits 1a, and a substantially same number of slits arranged along the longitudinal direction at the same pitch as the slits 41a, which are superimposed on the back surface of the fixing plate member 41 so as to be slidable in the longitudinal direction. It consists of a movable plate member 42 with slits 42a arranged and opened, so that the underfloor space S can be communicated with the indoor space A through both slits 41a and 42a. Further, the movable plate member 42 is provided with an adjustment knob 42b protruding from the movable plate member 42, and this adjustment knob 42b passes through a long hole 41b provided in the fixed plate member 41 and extends to the front. By operating the adjustment knob 42b left and right, the phase of the slit 42a relative to the slit 41a can be changed and the effective opening area can be adjusted.

Furthermore, in this room, office work is divided corresponding to each floor surface 10.1□, 13. For example, the work on floor surface 1 is designated as office work for the administration department, etc., and the work on floor surface 13 1□
The spaces are used as passageways and communication areas.

With such a configuration, the air-conditioning air blown out from the main outlet 2 flows smoothly along the underfloor spaces 81 to S, and can be blown out into the indoor space A from each outlet 3. Moreover, since the underfloor spaces 81 to S3 are continuously narrowed as the distance from the main air outlet 3 increases, regardless of the flow rate,
The blowing pressure of the air conditioning air blown out from each blowing outlet 3 is approximately equal to -
It is possible to prevent temperature unevenness in the plane direction from occurring. In particular, in this embodiment, the auxiliary outlet 4 is provided to blow out air conditioning air also in the plane direction of the floor surfaces 1□ and 13, making it possible to eliminate such temperature unevenness more effectively. Become.

In addition, since the effective opening area of the air outlet 3 and the auxiliary air outlet 4 can be adjusted, subtle adjustments can be made depending on the furniture, etc. placed in the indoor space A. Become. Furthermore, it is naturally expected that there will be cases where furniture or the like is placed above the air outlet 3 and the air outlet 3 is completely blocked, but in that case, the floor element 11 having the air outlet 3 may be By replacing the floor element 11 with another floor element 11, the problem can be easily solved.

As a result, when this device is adopted, it becomes possible to effectively cool and heat the indoor space A using the underfloor spaces 81 to S3 without blocking the wiring space. Moreover, with such a stepped floor structure, each floor surface 1, ~1
In addition to making clear distinctions between each type of work, for example, when an office worker receives a call from outside and has to find a sales person to take the call, indoor space A can be used. You can see it all at a glance, which is convenient.

In addition, in the above embodiment, each obstacle is defined by an aggregate of plate members, but in order to simplify the construction, it is possible to form at least the plate members adjacent to each other in the direction of the stairs integrally in advance. You can also leave it there. In addition, in the above embodiment, if it is desired to completely close the gaps between the plate members to allow air to flow without stagnation, the plate members 54 shown in FIG.
It is effective to provide cutouts 54a at the four corners to avoid legs, as shown in Figure 7.Furthermore, as an extension of these ideas, it is possible to reduce the overall size of the floor, as shown in the obstacle 6 shown in Figure 7. In order to avoid the legs, the leg insertion holes 61 may be bored in the thickness direction.The upper surface of the above obstacles is sloped, but Obstacle 7 shown
Even if a large number of block members 71 of different sizes are arranged adjacent to each other on the floor along the direction of the stairs, the same effect can be obtained. In this case, blocks of standard dimensions may be used and the height may be varied depending on the number of stacked blocks. Furthermore, in the above embodiments, a special feature is added in which the floor is divided into multiple horizontal floor surfaces of different heights, but basically a horizontal floor surface of a constant height is formed throughout the room. Needless to say, it is possible to obtain the desired effect on things. Of course, it is possible to suitably accommodate floor shapes different from these.

In addition, various modifications can be made without departing from the spirit of the present invention.

[Effects of the Invention] The underfloor air conditioner of the present invention can uniformize the air conditioning air blown out from the outlet as described above, so the main outlet can be placed near a wall where it does not block the wiring space. However, even if the air conditioner is not large enough, the entire room can be air-conditioned effectively. Further, according to the underfloor air conditioner of the present invention, the position of the outlet port can be changed, making it easy to enhance the temperature control function. Furthermore, by using the stepped floor structure according to the present invention, it is also possible to simultaneously promote smooth office operations and the like.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention, with Figure 1 being a schematic sectional view, Figure 2 being a perspective view of the floor element, Figure 3 being a plan view of the outlet, and Figure 4 is a longitudinal sectional view of FIG. 3, and FIG. 5 is a perspective view of the auxiliary outlet. Further, FIGS. 6 to 8 show other embodiments of the present invention, in which FIGS. 6 and 7 are perspective views of obstacles, and FIG. 8 is a sectional view of a floor on which obstacles are placed. 1... Floor 11.12.13... Horizontal floor surface 2... Main outlet 3... Outlet small outlet A... Indoor space Sl, S2, S,... Underfloor space

Claims (7)

[Claims] (1) Obstacles that can gradually narrow the underfloor space are placed under the floor of a raised floor structure, and the main outlet for air conditioning air is placed at the widest position of the underfloor space, and the underfloor space is narrowed. An underfloor air conditioner characterized in that a plurality of outlet openings are formed in the floor to communicate the underfloor space with an indoor space along the direction. (2) The underfloor air conditioner according to claim 1, wherein the floor is made up of a plurality of compatible standard-sized floor elements laid together, and a specific floor element is provided with an outlet. (3) The underfloor air conditioner according to claim 1 or 2, characterized in that a floor of a raised floor structure forms a horizontal floor surface of a constant height throughout the room. (4) Claim characterized in that the floor of the raised floor structure is provided in a step-like manner to form a plurality of horizontal floor surfaces having different heights, and the obstacles are respectively arranged in the underfloor space of each horizontal floor surface. The underfloor air conditioner according to 1 or 2. (5) The underfloor air conditioner according to claim 4, wherein the room is divided into a plurality of zones based on differences in floor height. (6) The underfloor air conditioner according to claim 1, wherein the upper surface of the obstacle forms a continuous slope. (7) The underfloor air conditioner according to claim 1, wherein the upper surface of the obstacle has a stepped shape.