JPH0533996A - Air conditioner - Google Patents

Abstract

PURPOSE:To heat a lower layer of a space to be conditioned without deteriorating an external appearance by providing a blow-off port at a ceiling, so providing a flat return on duct along the sidewall of the space to be conditioned as to be disposed from the ceiling over a floor, and forming a suction port in a state over an entire lateral width at the lower part of the duct. CONSTITUTION:An air conditioner 2 for air conditioning return air from a room 1 as a space to be conditioned and returning the conditioned air to the room 1, is provided at a ceiling 12. A blow-off port 21 is connected to communicate with the conditioner 2, and provided at the ceiling 12 in a state opened with the room 1. A flat return air duct 25 is so provided along the entire wall of an innermost side of a sidewall 11 as to be disposed from the ceiling 12 over a floor 13, and a plurality of blow-through ports 22 are dispersively formed at a lower part of the duct 25 in a state substantially over the entire width of its lateral direction. A vertical plate 25a of the duct 25 is formed in a flat state and unobstructive as seen from the space to be conditioned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, an air conditioner having a ceiling portion of an air conditioning target space provided with an air conditioning unit for conditioning the return air from the air conditioning target space and sending the air to the air conditioning target space. Regarding

[0002]

2. Description of the Related Art When retrofitting the air-conditioning equipment to the air-conditioned space, a duct for guiding return air from the air-conditioned space or air-conditioned air from the air-conditioning unit is placed along the side wall surface of the air-conditioned space. First, it is possible to attach it to. However, when the duct is attached as such, a convex portion is formed on the side wall surface to deteriorate the appearance when viewed from the air conditioning target space side, and the presence of the convex portion causes the air conditioning target space to be used. It will be difficult. Therefore, conventionally, as shown in FIG. 3, an air outlet 21 for blowing air from the air conditioning unit 2 into the air conditioning target space and a suction port 22 for sucking in return air from the air conditioning target space are provided at the ceiling portion 1 of the air conditioning target space.
By disposing the duct 2 on the side of the air conditioning target space, the duct does not have to be provided on the side of the air conditioning target space.
The convex portion that makes it difficult to use the air-conditioned space is not formed.

[0003]

In such conventional equipment, when heating is performed, even if hot air is blown out from the air outlet 21, the hot air tends to rise. The short-circuiting flows from the outlet 21 to the inlet 22. As a result, the hot air stays in the upper layer portion of the air conditioning target space and is less likely to travel to the lower layer portion thereof, and there is a problem that the lower layer portion of the air conditioning target space does not heat up. The present invention has been made paying attention to such an actual situation, while solving the problem of appearance from the side of the air conditioning target space and the problem of difficulty of using the air conditioning target space,
It is an object of the present invention to provide means capable of solving the above-mentioned problem during heating.

[0004]

The air conditioner according to the present invention has a characteristic configuration in which a blow-out port connected to the air conditioning unit is provided in the ceiling and a flat return connected to the air conditioning unit. An air duct is provided along the side wall surface of the air-conditioned space so as to extend from the ceiling to the floor of the air-conditioned space, and a suction port is provided at the lower part of the return air duct in the widthwise direction or substantially the entire width thereof. Is formed.

[0005]

Since the air outlet is provided in the ceiling of the air-conditioned space, the presence of the air outlet does not deteriorate the appearance from the air-conditioned space. In addition, a return air duct extending from the ceiling to the floor is provided along the side wall surface of the space to be air-conditioned, but since the return air duct is flat and inconspicuous, the presence of the return air duct is subject to air conditioning. It does not deteriorate the appearance from the space side. Moreover, even if the return air duct is provided on the side wall surface of the air conditioning target space, since the return air duct is flat, the side wall surface of the air conditioning target space does not have a convex portion that makes it difficult to use the air conditioning target space. .. Moreover,
Since the air outlet is located in the ceiling part, that is, the upper part of the air-conditioned space, and the suction port is located in the lower part of the return air duct, that is, the lower part of the air-conditioned space, warm air is heated in the air-conditioned space during heating. It is blown out from the upper part, reaches the lower part of the air-conditioned space evenly, and spreads widely to the air-conditioned space, thus eliminating the conventional problem that the lower layer of the air-conditioned space does not heat up. ..

[0006]

According to the present invention, therefore, the above-mentioned problems during heating can be solved while solving the problem of appearance from the side of the air-conditioned space and the problem of difficulty in using the air-conditioned space. Like

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the portions denoted by the same reference numerals as those in the conventional example indicate the same or corresponding portions.

FIG. 1 and FIG. 2 show an embodiment in which the air conditioning equipment according to the present invention is retrofitted to an air conditioning target space. In the figure, 1 is a room as an air conditioning target space, and the room 1 is surrounded by a side wall 11 into a quadrangular shape in a plan view, and a top portion of the quadrangular shape is covered with a ceiling portion 12. It is configured by a space that is partitioned and formed in a rectangular parallelepiped by being partitioned into. The side wall 11
Doors 3 for people to enter and exit are provided at two positions near both ends of the front part of the.

The ceiling 12 (specifically, the space above the ceiling) is provided with an air-conditioning unit 2 that air-conditions the return air from the room 1 as the air-conditioning target space and sends the air-conditioned air back to the room 1. ing. In the air conditioning unit 2,
A base end portion of a supply duct 23, which is vertically and horizontally arranged in the ceiling portion 12 and has a multi-legged shape in which the tip portion is branched into a plurality of legs, is connected to each of the tip portions of the supply duct 23. Air outlets 21 that open to the room 1 are provided in the ceiling portion 12, respectively. That is, the air outlet 21 is connected to the air conditioning unit 2 via the supply duct 23, and the air outlet 21 is provided in the ceiling portion 12 so as to open to the room 1. ..

The air conditioning unit 2 includes a return duct 2
4 is connected, and its return duct 24
Is disposed in the ceiling portion 12 in a state in which the tip portion 24a is bent into an L shape so as to reach one corner of the quadrangular shape. The tip end 24a of the return duct 24 opens into the space behind the flat return air duct 25 described below.

The return air duct 25 is mainly composed of a vertical plate portion 25a which entirely covers the inner side portion of the side wall 11. The vertical plate portion 25a is perpendicular to the upper end of the vertical plate portion 25a. A horizontal plate portion 25b is also provided, which extends and covers a part of the ceiling portion 12 (that is, the ceiling portion 12 from the back side portion of the room 1 to the position of the tip portion 24a of the return duct 24). The flat return air duct 25 (more specifically, the vertical plate portion 25a which is the main portion thereof) is formed by the side wall 11
Is provided along the entire wall surface on the back side of the room 1 so as to extend from the ceiling part 12 to the floor part 13 of the room 1, and the return air duct 25 has a lower part over substantially the entire width in the lateral direction. Thus, a plurality of suction ports 22 are formed dispersedly.
Thus, when the return air duct 25 is provided, the space behind the return air duct 25 is
It is in a state of being communicatively connected to the air conditioning unit 2 via.

In the air conditioner of the present invention, since the air outlet 21 is provided in the ceiling portion 12, the existence of the air outlet 21 is inconspicuous and the air outlet 21 is provided along the side wall surface of the room 1. Vertical plate portion 25 of the return air duct 25
a is a flat shape and is inconspicuous when viewed from the air conditioning target space side. Further, since the horizontal plate portion 25b of the return air duct 25 is also located on the ceiling portion 12, it is inconspicuous when viewed from the air conditioning target space side. Therefore, even if the return air duct 25 is provided, the appearance from the air conditioning target space side does not deteriorate. Moreover, since the return air duct 25 (specifically, the vertical plate portion 25a thereof) provided on the side wall surface of the room 1 has a flat shape, the side wall surface has a convex portion that makes it difficult to use the air-conditioned space. Is not formed. Moreover, the air outlet 21 has the ceiling portion 12
(I.e., the upper part of the air-conditioned space) and the suction port 22 is located in the lower part of the return air duct 25 (i.e., the lower part of the air-conditioned space). It uniformly reaches from the upper part of the space (ceiling part) to the lower part of the air-conditioned space (floor) and spreads widely throughout the air-conditioned space. As a result, it tends to occur during heating and the part near the floor is hard to heat. The problem will be resolved. Further, by providing a muffling means or a filter in the space behind the return air duct 25, the return air can be silenced and cleaned in that space to further improve comfort during air conditioning.

Next, another embodiment of the present invention will be described. A series of suction ports may be provided in the lower portion of the return air duct 25 over the entire width in the width direction.

Further, the return air duct 25 may be provided inconspicuously on a part of the inner side wall 11 (for example, household goods and the like are placed in the portion where the return air duct 25 is not provided). And the return air duct 25 is inconspicuous), or the return air duct 25 may be provided on the side wall 11 other than the back side (for example, the left and right side walls 11 where the door 3 is not provided).

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a perspective view showing a room in which an air conditioner according to the present invention is installed.

FIG. 2 is a vertical sectional view showing the main part thereof.

FIG. 3 is a perspective view showing a room in which conventional air conditioning equipment is installed.

[Explanation of symbols]

 2 Air conditioning unit 12 Ceiling part 13 Floor part 21 Air outlet 22 Suction port 25 Return air duct

Claims (1)

Claim: What is claimed is: 1. An air-conditioning facility, comprising: an air-conditioning unit (2) for air-conditioning return air from an air-conditioning space and sending the air to the air-conditioning space in a ceiling portion (12) of the air-conditioning space. The air outlet (2) connected to the air conditioning unit (2) in communication therewith.
1) is provided on the ceiling part (12) and is connected to the air-conditioning unit (2) so as to communicate with the air-conditioning unit (2).
Is provided along the side wall surface of the air conditioning target space so as to extend from the ceiling part (12) to the floor part (13) of the air conditioning target space, and the entire width in the width direction or the entire width in the width direction of the air return duct (25) or An air-conditioning facility in which the suction port (22) is formed in a state of substantially the entire width.