JPH1061966A - Air conditioning structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the air conditioning efficiency, to dispense with duct works, etc., and to facilitate the execution at a low cost by providing a controllable valve on a lower opening part to communicate an air outlet of an indoor unit of an air conditioner arranged in a double ceiling with an indoor space through an air passage. SOLUTION: An indoor unit 4 of an air conditioner is arranged on a double ceiling B forming an air passage A. An air outlet 13 of the indoor unit 4 of the air conditioner is communicated with the air passage A, the air passage A is communicated with an indoor space C through a lower opening part 5, and a controllable valve 7 is provided on the lower opening part 5 to open/close the opening part 5. The controllable valve 7 is capable of being operated and stopped in three conditions by a control and drive device, i.e., a condition to close the lower opening part 5 and open only a transverse opening part 6, a condition to half-open the lower opening part 5 in addition to the transverse opening part 6, and a condition to open the lower opening part 5. Thus, each air-conditioning condition of full radiation, semi-convection and semi-radiation, and convection can be easily switched to improve the air-conditioning efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air-conditioning structure which can improve air-conditioning efficiency, is low-cost, and is easy to construct.

[0002]

2. Description of the Related Art As a method of air-conditioning a room, conventionally, a method of providing a cold / hot water pipe on a ceiling surface and arranging a dehumidifier or a dehumidifying air conditioner in the room for dehumidification during cooling. A method in which a duct and a chamber are installed on a ceiling provided with an air passage and air is blown into the air passage and the room. And so on.

[0003]

However, the method using a cold / hot water pipe requires a pipe and dehumidifying equipment, which increases the cost. In addition, the so-called convection heating / cooling system in which air is directly blown into a room and air-conditioned by convection is used. There is a problem that it cannot be done.

A method of installing a duct and a chamber in an air passage on the ceiling requires a cost for the duct equipment, the convection cooling and heating, the so-called radiant cooling and heating for air-conditioning by the radiation from the ceiling surface by the air flowing through the air passage, and the convection heating. However, there is a problem that it is difficult to control so-called semi-convection / semi-radiation cooling / heating that shares radiation, it is difficult to follow fluctuations in the indoor cooling / heating load, and air-conditioning efficiency is easily reduced.

[0005] The present invention is based on the provision of a movable valve capable of opening and closing the lower opening at the lower opening for connecting the air outlet of the air conditioner indoor unit disposed on the double ceiling to the room through the air passage. Air-conditioning structure that can easily switch between convection cooling and heating, radiation cooling and heating, and semi-convection / semi-radiation cooling and heating, can improve air conditioning efficiency, eliminate the need for duct work, etc., and can be easily constructed at low cost. It is intended to be provided.

[0006]

In order to achieve the above object, an air conditioning structure according to the present invention comprises an air conditioner indoor unit disposed on a double ceiling forming an air passage, and an air outlet of the air conditioner indoor unit. Is connected to the air passage, the air passage is connected to the room through the lower opening, and a movable valve capable of opening and closing the lower opening is provided in the lower opening.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 5, the air-conditioning structure of the present invention includes an air-conditioner indoor unit 4 arranged on a double ceiling B forming an air passage A, and
The air outlet 13 is connected to the air passage A, and the air passage A is connected to the room C through the lower opening 5. The lower opening 5 is provided with a movable valve capable of opening and closing the lower opening 5. 7
Is provided.

As shown in the bottom view of FIG. 3 and the perspective view of FIG. 5, in the present embodiment, the double ceiling B has parallel frame members 15A, 15B. Are formed by a ceiling panel P with an upper ceiling plate 2 forming a so-called open ceiling on the upper surface of a rectangular outer frame set joined by a ceiling panel P and a lower ceiling plate 3 on the lower surface.

A rectangular opening 16 for mounting the air conditioner indoor unit 4 near one of the frame members 15B is formed in one peripheral portion (perimeter area) of the ceiling panel P. And a length extending in parallel with the frame member 15A from a horizontal intermediate portion between two opening end surfaces of the opening portion 16 parallel to the frame member 15B.
The interior of the double ceiling B is divided into two spaces S, S by the inner frame members 17A, 17B of the book.

Further, the ceiling panel P is provided between the inner frame members 17A, 17B and the frame member 15A parallel to the inner frame members 17A, 17B in the respective spaces S, S. The upper and lower ceiling plates 2 and 3 are brought into close contact with the upper and lower ceiling plates 2 and 3 by, for example, three parallel middle frame members 19.
15B, an air passage A through which air circulates is formed in each space S sandwiched between the upper and lower ceiling plates 2 and 3 as shown by a dashed arrow in FIG. In addition, one of the middle frame members 19A and the frame member 15 of the opening 16 are provided.
A short horizontal frame member 20 that blocks the air flow is fixed between the upper and lower ceiling plates 2 and 3 between the opening end surface parallel to A.

In the present embodiment, the air conditioner indoor unit 4 of a one-way blowout type suitable for a perimeter area is inserted from below into the opening 16 of the double ceiling B formed by using such a ceiling panel P. Mounted and mounted.

The air conditioner indoor unit 4 is a ceiling embedded type indoor unit. In this embodiment, as shown in FIGS.
Standing pieces 21 formed in a rectangular frame shape: At the lower edge, a flange piece 22 that extends outward and is attached integrally to the lower surface of the lower ceiling plate 3 is provided integrally, and is parallel to the standing pieces 21, 21 extending in the longitudinal direction. Frame 24 having a pair of middle frames 23, 23 having a U-shaped cross section
Consists of a fan coil portion 29 previously fixed to the upper surface of the fan coil.

The fan coil section 29 is provided with the lower frame 2
4 a heat exchanger 10 fixedly provided with a service space 25 on the upper surface and exchanging heat with a supplied heat medium such as water.
And a fan 11 for blowing air and a drain pan 27 in a box-shaped casing 34 open downward.

As the air conditioner indoor unit 4, various well-known ceiling air conditioner indoor units other than those using a fan coil unit can be adopted.

A pair of standing pieces 21 extending in the longitudinal direction of the lower frame base 24 are disposed in parallel with the frame member 15B by attachment, and face the air passage A and receive air from the air passage A. And a lateral opening 6 through which air can be blown into the air passage A.

The upper surface of the lower frame 24 in the service space 25 is covered by a suitable upper plate 31. The air conditioner indoor unit 4 is fixed to the lower ceiling plate 3 by the flange piece 22. , Are also fixed to the upper ceiling plate 2 using crosspieces 32... And are arranged on the double ceiling B. Further, for example, a suspension fitting 3 fixed to a beam material passing above the double ceiling B by using a screw or the like on the upper surface of the fan coil portion 29.
By using 3…, the air conditioner indoor unit 4
Mounting strength can be increased.

Further, in the present embodiment, the air outlet 13 of the fan coil portion 29 constituting the air conditioner indoor unit 4 is connected to the air passage A through the lateral opening 6.

A standing piece 21 provided with the lateral opening 30;
The middle frame 23 adjacent to this forms a lower opening 35 that opens in the room C between the lower ends thereof. In the present embodiment, the suction port 9 of the air conditioner indoor unit 4 communicates with the air passage A through the lateral opening 30, and the air passage A connects the lower opening 35 and the lateral opening 30 to each other. Through the room C.

The standing piece 21 further provided with the lateral opening 6
And the middle frame 23 adjacent thereto forms the lower opening 5 opening in the room C between the lower ends thereof. Therefore, the air passage A communicates with the room C through the lower opening 5 and the lateral opening 6.

On the horizontal lower flanges 23A, 23A of the pair of middle frames 23, 23, a lower part of the ceiling plate 3 below the double ceiling B, a lower part of the center below the air conditioner indoor unit 4 is provided. Both side edges of the plate 36 are placed.

Therefore, in the present embodiment, as shown by a dashed line in FIG. 4, the central lower plate 36 is inclined and the central lower plate 26 is removed from the double ceiling B below the air conditioner indoor unit 4. Therefore, maintenance such as cleaning and inspection of the filter of the air conditioner indoor unit 4 and operation and inspection of the fan 11 and the valve can be easily performed without entering the ceiling.

One side edge of the central lower plate 36 may be pivotally supported on the lower surface of one of the middle frames 23 so that the lower part of the air conditioner indoor unit 4 can be freely opened and closed like a hinged door.

As shown in FIG. 3, the lower surface of the central lower plate 36 is patterned in accordance with the lower surface of the lower ceiling plate 3 to enhance the interior.

Further, the lower opening 5 is provided with a movable valve 7 capable of opening and closing the lower opening 5, and the lower opening 35 is provided with a decorative material 28 such as a grill.

As shown in FIG. 4, in this embodiment, the movable valve 7 is formed from a horizontally long plate-shaped substrate 39 whose upper edge is pivotally connected to the middle frame 23 below the middle frame 23 facing the horizontal opening 6. A state X1 in which the lower opening 5 is closed and only the lateral opening 6 is opened by an appropriate control / driving device (not shown) (a switch is provided on the remote controller for operating the air conditioner indoor unit 4).
(Shown in FIG. 4), a state X2 (shown in FIG. 6) in which the lower opening 5 is half-opened in addition to the horizontal opening 6, and a state X3 (shown in FIG. 7) in which the lower opening 5 is opened. , X2, X
3. Can move and stop.

The movable valve 7 can be operated even when the air conditioner indoor unit 4 is operating. For example, the movable valve 7 can perform a full closing operation of the lower opening 5, and the movable valve 7 has a plurality of blades. Various things can be adopted.

In the state X1 shown in FIG. 4, the air blown by the fan 11 is blown out from the outlet 13 through the lateral opening 6 into the air passage A as shown by the arrow in the figure. As shown by the broken arrow in FIG. 3, the air passage A is circulated through
From the air conditioner indoor unit 4.

At this time, cool air or warm air is radiated into the room C via the lower ceiling plate 3 by the air in the air passage A.

In the state X2 shown in FIG. 6, the air blown by the fan 11 flows from the lateral opening 6 and the lower opening 5 into the air passage A and the room C, respectively, as indicated by arrows in the drawing. The room C is blown out by radiation and convection.
Can be air-conditioned. The suction port 9 is connected to the horizontal opening 30.
And the lower opening 35 to suck air.

Further, in the state X3 shown in FIG.
Most of the air blown by the fan 11 is blown out from the lower opening 5 into the room C as indicated by an arrow in the figure, and the room C is mainly conditioned by convection. The suction port 9 mainly sucks the air in the room C from the lower opening 35.

As described above, by controlling the movable valve 7, it is possible to easily switch between the full radiating (shown in FIG. 4), the half convection / half radiating (shown in FIG. 6), and the convection (shown in FIG. 7). ,
The air-conditioning efficiency can be improved, and additional work can be limited to the double ceiling B and the ceiling panel P in the present embodiment, as compared with the air-conditioning apparatus using only convection. Thus, an air-conditioning structure with low cost and good workability can be provided.

The horizontal opening 6 and / or the horizontal opening 3
0, that is, without providing the standing piece 21 for blocking the air passage A, the air passage A is connected to the room C only through the lower opening 5.
May be conducted.

[0033]

As described above, according to the air conditioning structure of the present invention, an air conditioner indoor unit is disposed on a double ceiling forming an air passage, and an air outlet of the air conditioner indoor unit is connected to the air passage. In addition, the air passage is connected to the room through the lower opening, and a movable valve capable of opening and closing the lower opening is provided in the lower opening. Therefore, by the operation of the movable valve, convection cooling and heating by fully opening the lower opening, and radiant cooling and heating by closing the lower opening, especially full radiant cooling and heating that sends all air to the air passage, further lower opening The semi-convection / semi-radiant cooling / heating can be easily switched without providing a special device or mechanism by opening the halfway, so that the room can be efficiently air-conditioned by following the fluctuation of the indoor cooling / heating load.

In addition, a conventional ceiling-mounted type air conditioner indoor unit can be used, and the air conditioner control functions such as temperature setting and air volume setting can be used as it is, and maintenance can be performed by a conventional method. Cost can be reduced.

Further, since an air conditioner indoor unit is used, duct work is not required, and additional work is only double ceiling compared with convection cooling / heating, so that cost can be reduced and
Construction can be facilitated and labor can be saved.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of an embodiment of the present invention.

FIG. 2 is a front view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a sectional view thereof.

FIG. 5 is an exploded perspective view thereof.

FIG. 6 is a sectional view showing the operation of the present invention.

FIG. 7 is a sectional view showing the operation of the present invention.

[Explanation of symbols]

 4 Indoor unit of air conditioner 5 Lower opening 7 Movable valve 13 Air outlet A Air passage B Double ceiling C Room

Claims (1)

[Claims] An air conditioner indoor unit is arranged on a double ceiling forming an air passage, an air outlet of the air conditioner indoor unit is connected to the air passage, and the air passage is connected to the air passage through a lower opening. An air-conditioning structure in which a movable valve is provided in the lower opening so as to open and close the lower opening while being electrically connected to the room.