JPH10115451A - Air outlet panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an air outlet panel which is easily transferred and has no change of ventilating effect by altering layout of a desk or household appliance and no clogging. SOLUTION: A latch plate 36 is placed on a support 14, and the air outlet panel 32 is installed partly on a floor F. Stand plates 42 are bridged at a predetermined interval in a frame 38 for communicating with an air supply passage 28 to constitute an air outlet 40. Blade plates 43 are extended from upper ends of the plates 42 in an oblique direction while bending. Thus, the plates 43 are bent so that the air is not diffused upward even if a wind velocity is accelerated and the air in which air flow properties are near a laminar flow can be diffused substantially parallel to the floor. Since the outlet is not directed upward, it is not clogged with dust, and dust deposited on the floor is not wound up as well.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an outlet panel used for an underfloor air conditioning system.

[0002]

2. Description of the Related Art As a new air conditioning system, a whole floor air conditioning system has been proposed as a new air conditioning system instead of the conventional ceiling air conditioning system (mixed dilution ventilation system) (Japanese Patent Laid-Open No. 6-22958).
No. 4).

As shown in FIG. 9, a floor floor 88 having a plurality of air supply holes 86 is spread over the entire floor to form a double floor, and the air supply passage 9 is provided between the floor member 88 and the floor slab 90.
2, the air supplied from the air conditioning unit 94 via the air supply passage 92 is blown out from the air supply hole 86 into the living room 96, and the pollutant O accompanying the heat generated or flowing into the living room 96.
Is pushed up to the exhaust hole 100 formed in the ceiling member 98 and exhausted through the exhaust passage 102, and the living room is wrapped with fresh air supply.

However, in the above air conditioning system, the air supply holes 86
Must be spread over the entire surface of the floor, which increases the cost. Further, since the air supply hole 86 faces upward, there is a possibility that dust accumulated on the floor surface may be rolled up or the air supply hole 86 may be clogged with dust or the like. In addition, desk 10
4 and the OA equipment are placed, the air supply holes 86 are closed, so that it is possible that the intended ventilation effect cannot be obtained.

[0005] On the other hand, a method has been proposed in which air is blown out from an outlet provided in a lower portion of a wall surface. With this method, there is no danger of clogging of the outlet, but there are restrictions on the arrangement of furniture and fixtures, etc. Cannot be relocated or expanded.

[0006]

SUMMARY OF THE INVENTION In consideration of the above facts, the present invention can be easily relocated, and the ventilation effect does not change due to a change in the layout of desks, furniture, etc., and clogging does not occur. It is an object to provide an outlet panel.

[0007]

According to the first aspect of the present invention, an air outlet panel is installed on a part of the floor surface on which furniture and the like are not disposed, and air is supplied through an air supply passage by a wind direction control means. The air is blown almost parallel to the floor. Thereby, a temperature stratification is formed from the floor surface to the upper part of the living area.

[0008] The temperature stratification is formed by a rising air current generated by a heat source inside the living room (for example, a fixture such as a human body or OA equipment) replacing the air blown out from the floor surface. The heat, dust, and the like move to the ceiling surface by the rising airflow, are sucked into a suction port formed in the ceiling surface, and are exhausted through an exhaust passage. Thus, the air quality of the living room can be maintained without agitation of dust and the like.

Further, by blowing air at a temperature lower than room temperature from the outlet panel substantially parallel to the floor surface, the air moves along the floor surface without increasing the speed of the blown air. The distance becomes longer. For this reason, there is no fear that the blowing wind speed is increased and as a result, turbulence is caused. Further, by adjusting the amount of the blown air (adjusting the blown area), the thickness of the blown air (height from the floor) can be increased to lower the blown air speed.

[0010] According to the second aspect of the present invention, the standing plate is stretched at a predetermined interval in the frame body communicating with the air supply passage and constituting the air outlet. The blade plate projects obliquely from the upper end of the standing plate while being curved.

As described above, the provision of the standing plate does not partially block the air outlet formed by the frame as compared with the structure in which the blade is directly hung on the frame. In addition, by bending the blades, even when the wind speed is increased, the air does not blow upward, and the air whose airflow property is close to the laminar flow can be blown substantially parallel to the floor surface.

Also, since the outlet is not directed upward,
There is no clogging due to dust or the like, and no dust accumulated on the floor surface is rolled up. Furthermore, compared to the type in which the entire floor is an outlet, the outlet panel only needs to be provided on a part of the floor, so that the installation cost can be reduced and the expected ventilation effect can be easily obtained.

According to the third aspect of the present invention, adjacent blades have different inclination angles. For example, by gradually setting the blades on the rear side in the blowing direction to be vertical, air to be drawn from above can be pushed away, so that turbulence does not occur.

According to the fourth aspect of the present invention, the frame is partially partitioned, and an outlet for blowing the air supplied through the air supply passage upward is formed. The opening surface of the outlet is covered with a perforated plate having a large number of air supply holes. When the air blown upward from the air supply hole blows out the air substantially in parallel with the floor surface, it displaces the air on the side opposite to the blowout direction to be drawn from above, so that no turbulence occurs.

According to the fifth aspect of the present invention, the reinforcing plate is mounted in the frame so as to intersect the standing plate. For this reason, the strength of the outlet panel is increased, and it is difficult for the outlet panel to be broken even if it is put on top.

According to the sixth aspect of the present invention, the hooking means projects outward from the frame so that the hooking means is supported by a column supporting the floor panel and forming a double floor. Has become.

Therefore, the outlet panel can be easily relocated to an optimum position according to a layout change of a desk or the like or a use of a room.

In the air-conditioning method in which air is blown substantially parallel to the floor, the air-conditioning effect is determined by the total area of the air outlets, so that the air outlet panels can be arranged in one place. For this reason, the degree of freedom of the installation position of the outlet panel is increased.

[0019]

FIG. 1 shows a floor surface F of a living room 10 on which an outlet panel 32 according to a first embodiment is installed. On the floor slab 12 of the living room 10, a plate 16 of the support 14 is placed. A leg 18 having an external thread formed on the outer peripheral surface is erected from the plate 16, and a cradle 20 is screwed into the leg 18 so that the level can be adjusted.

A projection 22 is provided on the upper surface of the receiving body 20. The projection 22 has a floor panel 26 (for example, 50).
(0 mm × 500 mm) is engaged with the engagement hole 24 for preventing slippage, which is provided on the lower surface, and the air supply passage 28 is formed between the floor and the floor slab 12.

A level adjustment block 30 is set on the cradle 20. The block 30 is provided with a locking plate 3 projecting from an outer peripheral portion of an outlet panel 32 described later.
6 corners are stretched.

Thus, the outlet panel 32 can be installed on the support 14 without any difference from the tile carpet 34 laid on the floor panel 26, and the installation position can be easily changed as necessary.

As shown in FIGS. 2 and 3, the outlet panel 32 has a rectangular frame 38, and the opening of the frame 38 is an outlet 40. A rectangular frame-shaped locking plate 36 projects from the outer edge of the frame body 38, and a hook portion 36A is formed at the tip. The outer dimensions of the hook plate 36 are 500 mm × 500 mm. That is, the air outlet panel 32 has the same size as the floor panel 26 and can be replaced with the floor panel 26 so that the air outlet panel 32 can be moved or added.

In the frame 38, a long plate-like standing plate 4 is provided.
2 are extended upright at predetermined intervals in parallel. At the upper end of the standing plate 42, a blade plate 43 that projects in an oblique direction (a fixed direction) while being curved is provided. The blade plate 43 prevents the air from blowing upward, and controls the airflow so that the airflow is substantially parallel to the floor surface F constituted by the floor panel 26 and the airflow is close to a laminar flow. Further, by providing the standing plate 42, the opening ratio of the air outlet formed by the frame body 38 is increased as compared with the structure in which the blade plate 43 is directly hung over the frame body 38, so that air can be efficiently blown out. it can.

Further, a reinforcing plate 44 is stretched over the frame 38. The reinforcing plate 44 is provided with a cut 45 at a portion intersecting with the standing plate 42, and the cut 45 is engaged with the standing plate 42. As a result, the outlet panel 32
It has a structure that does not break even if people are placed on it.

On the other hand, as shown in FIG. 4, a ceiling panel 48 having a suction port 46 is provided on the ceiling of the living room 10, and an exhaust passage 52 is formed between the ceiling panel 48 and the ceiling slab 50. . A ring air duct 54 is connected to the exhaust passage 52, and a part of the air is exhausted to the outside through an exhaust duct 56 by a return air fan (not shown).

A part of the air in the exhaust passage 52 is returned from the air duct 54 to the air conditioner 58 as return air.
The air is mixed with fresh air introduced from the outside air duct 60. Further, an air supply duct 62 is connected to an air outlet of the air conditioner 58 so as to supply air at a predetermined temperature and wind speed to the air supply passage 28.

Next, the function of the outlet panel according to this embodiment will be described. Air is supplied from the air conditioner 58 to the air supply passage 28 through the air supply duct 62. Here, the air to be supplied is
As an example, the temperature is set to be about 3 ° C. lower than the set temperature of the living room 10, and the wind speed of the air blown out from the outlet 40 of the outlet panel 32 is set to 0.3 m / s.

Here, as shown in FIGS. 3 and 4, the air blown out from between the blade plates 43 of the blow-out panel 32 is
The air flow becomes almost laminar and crawls on the floor F, moves substantially parallel to the floor F, and drifts over the entire surface of the floor F.

Then, the rising air current generated by the human body B as an internal heat source replaces the air floating on the floor F to form a temperature stratification. That is, the temperature gradient (the temperature difference between the floor F and the boundary L from the floor F to the boundary between the floor F and the boundary L of the circulation area M (region without a temperature gradient) below the ceiling panel 48) is determined. An air layer having a value (T / h) divided by the distance to the surface L, that is, a so-called temperature stratification is formed.

The heat, dust and the like generated in the living room 10 move to the circulation area M by this rising airflow, are sucked into the suction port 46 formed in the ceiling panel 48, and are exhausted through the exhaust passage 52. Thereby, the air quality of the living room 10 is improved without diffusion of dust and the like.

The outlet 40 of the outlet panel 32 is
Since the blowing direction is inclined by the blade plate 43,
There is no clogging due to dust or the like, and no dust accumulated on the floor surface F is rolled up. Furthermore, since the outlet panel 32 has a structure that can be easily removed,
It can easily respond to changes in the layout of desks and the like. Also,
By adjusting the height of the block 30, the leveling can be easily adjusted even if the thickness of the floor panel 26 is different.

In the present embodiment, the wind speed of the air blown out from the air outlet 40 is 0.3 m / s. However, in consideration of the comfort, the air is not heated by the human body and the internal heat is generated. This takes into account the distance that can be reached to the source. Therefore, if the internal heat source is near the outlet panel 32, the air velocity may be 0.3 m / s or less.

The reason why the wind speed of the air blown out from the outlet is not set to 0.3 m / s or more is that if the wind speed is increased, turbulence may occur. However, whether or not the disturbance occurs cannot be quantitatively measured and is caused by various conditions such as the structure of the living room 10. Therefore, the wind speed may be 0.3 m / s or more as long as no turbulence is generated by experiments, and the wind speed is not limited to 0.3 m / s.

The air-conditioning system is not limited to the one described in the present embodiment. If the air-conditioning system can supply the cool air to the air supply passage 28 and can exhaust the air from the exhaust passage 52, the pressurized chamber can be used. The air flow may be caused by the pressure difference used.

Further, by adjusting the amount of the blown air (adjustment of the blown area), the thickness of the blown air (height from the floor) can be increased to lower the blown air speed.

Next, an outlet panel according to a second embodiment will be described. As shown in FIG. 7, the outlet panel 68 of the second embodiment
Is gradually approaching vertically from the left side to the right side while raising the inclination angle. For this reason, when blowing air substantially in parallel with the floor surface F from between the slats 70,
Since the vertical slats 70 on the rear side in the blowing direction push away air that is to be drawn from above, no turbulence occurs.

The air outlet panel 72 of the third embodiment shown in FIG. 8 has the same partial structure as the air outlet panel 32 of the first embodiment, but blows out air from between the blade plates 43. The opposite side to the direction is partitioned by a standing wall 74,
An air outlet 76 for blowing out the air supplied through the air supply passage 28 upward is formed.

An air supply hole 78 is provided on the opening surface of the air outlet 76.
Are covered with the perforated plate 80 formed with a large number. When the air blown upward from the air supply holes 78 blows air substantially parallel to the floor surface F from between the blade plates 43, it displaces air that is to be attracted from above, so that no turbulence occurs.

Since the air outlet panel 32 can be relocated, as shown in FIG. 6, the air outlet is not blocked by the layout change of the desk 66, and the air outlet is located at an optimum position according to the layout. The panel 32 can be relocated. Further, since the required number of outlet panels 32 is determined by the total area of the outlets, the degree of freedom of the set position of the outlet panels 32 is large.

[0041]

Since the present invention has the above-described structure, it can be easily relocated, can flexibly cope with a layout change of furniture, furniture, etc., and can easily obtain a planned ventilation effect. In addition, there is no clogging of the air outlet, and the maintainability is excellent. Furthermore, since it is not necessary to replace all floor panels, it can be easily applied to existing double floors.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a double floor structure in which an outlet panel according to a first embodiment is installed.

FIG. 2 is a perspective view of an outlet panel according to a first embodiment.

FIG. 3 is a perspective view showing air flowing from an outlet panel according to the first embodiment.

FIG. 4 is a schematic diagram illustrating a flow of air in a living room provided with the outlet panel according to the first embodiment.

FIG. 5 is a plan view showing the flow of air in a living room provided with the outlet panel according to the first embodiment.

FIG. 6 is a plan view showing the flow of air in a living room provided with the outlet panel according to the first embodiment.

FIG. 7 is a cross-sectional view showing a double floor structure in which an outlet panel according to a second embodiment is installed.

FIG. 8 is a cross-sectional view showing a double floor structure in which an outlet panel according to a third embodiment is installed.

FIG. 9 is a schematic diagram showing a conventional underfloor air conditioning system.

[Explanation of symbols]

 28 Air Supply Passage 32 Blow Out Panel 36 Hook Plate (Hook Means) 38 Frame 40 Blow Out Port 42 Stand Up Plate (Wind Direction Control Means) 43 Blade Board (Wind Direction Control Means) 44 Reinforcement Plate 46 Suction Port 52 Exhaust Passage 58 Air Conditioning Machine 68 Air outlet panel 72 Air outlet panel 76 Air outlet 80 Perforated plate

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ikumasa Misaka 1-5-1, Otsuka, Inzai City, Chiba Prefecture Inside the Technical Research Institute, Takenaka Corporation (72) Inventor Yoshiaki Higuchi 1-5-5 Otsuka, Inzai City, Chiba Prefecture 1 Inside Takenaka Corporation Technical Research Institute (72) Inventor Hisashi Hanzawa 1-5-1, Otsuka, Inzai City, Chiba Prefecture Inside 1 Takenaka Corporation Technical Research Institute (72) Inventor Noriyuki Takahashi 1-chome Otsuka, Inzai City, Chiba Prefecture 5-1-2, Takenaka Corporation Technical Research Institute (72) Inventor Isao Ishii 6-2 Umegaoka, Aoba-ku, Yokohama-shi, Kanagawa Prefecture Japan Tobacco Inc. Tobacco Central Research Institute (72) Inventor Nishina Takumi Aoba, Yokohama-shi, Kanagawa Prefecture 6-2 Umegaoka, Ward Japan Tobacco Inc.

Claims (6)

[Claims] An air supplied through an air supply passage from an air outlet panel installed on a floor surface is blown into a living room, and air in the living room is sucked from a suction opening formed on a ceiling surface and exhausted through an exhaust passage. An outlet panel used in an underfloor air conditioning system, wherein the outlet panel has air direction control means for blowing air supplied through the air supply passage substantially in parallel with the floor surface. Exit panel. 2. A frame which communicates with the air supply passage and forms an air outlet, an upright plate which is bridged at predetermined intervals in the frame, and an upper end of the upright plate. The blade panel according to claim 1, further comprising: a blade plate that projects obliquely while being curved from the blade. 3. The outlet panel according to claim 2, wherein adjacent blades have different inclination angles. 4. An air outlet which partially partitions the frame and blows out the air supplied through the air supply passage upward, and the opening surface of the air outlet is a perforated plate having a large number of air supply holes formed therein. The outlet panel according to claim 2, wherein the outlet panel is covered. 5. A reinforcing plate is provided in the frame so as to intersect with the upright plate.
The outlet panel according to any one of the above. 6. The apparatus according to claim 2, further comprising a latching means which projects outward from the frame, supports the floor panel, and is supported by a column constituting a double floor. The outlet panel described in Crab.