JPH0124506Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to an air conditioner, and more specifically, an air conditioner that has a front outlet at the lower front of the main body casing that blows air from a fan forward. Regarding improvements.

(Prior art) Conventionally, in an indoor unit of an air conditioner such as a wall-mounted type, a front air outlet for blowing air forward from a fan is provided at the lower part of the wall of the main body casing, and the front air outlet has a vertical angle. It is widely known that the direction of the air blown forward from the front air outlet can be adjusted by providing horizontal blades that are variably supported and adjusting the set angle of the horizontal blades.

However, in the conventional air conditioner described above, air is blown out only in one direction corresponding to the set angle of the horizontal blades, so there is a problem that the temperature distribution in the room is not uniform. Moreover, since the air outlet is provided at the lower front, even if the horizontal blades are set as downward as possible, the air will not reach the space directly below the main body casing, making it impossible to air-condition this space.

Therefore, as an air conditioner that solves the above-mentioned problems, for example, as shown in FIG. A horizontal blade-shaped motor damper d supported so that its angle forward and downward is variable is provided between the
The setting angle of the motor damper d is switched forward or downward based on a signal from a sensing element that senses the temperature of the air, and the heat exchanger e in the main body casing a is connected from either of the two blow-off ports b and c. It has been proposed that the air sent from fan f is blown out after heat exchange with
(See Publication No. 16842).

However, the above-mentioned proposal has the drawback that air can only be blown out from either one of the blow-off ports (b or c), and therefore the room can only be air-conditioned locally.

In addition to the air conditioner proposed above, the 10th
As shown in the figure, a front air outlet h is provided on the front surface of the main casing g, an auxiliary air outlet i is provided on the lower surface of the main casing g, and a damper j is further provided to open and close the auxiliary air outlet i. When the main body casing g is opened, the air sent from the blower k in the main body casing g and heat exchanged by the heat exchanger l is sent to the front air outlet h.
By blowing out from both the and auxiliary outlet i,
A device has been disclosed in which the temperature distribution in the room is made uniform and air is also blown out into the space directly below the main body casing g (see Japanese Utility Model Publication No. 56-5923). However, although it is possible to blow out air from both outlets h and i by adjusting the angle of damper j, this requires the addition of an auxiliary outlet and a damper to an air conditioner that has a front outlet. However, the structure is complicated.

(Purpose of the invention) The object of the invention is to configure the structural members constituting the front air outlet in an air conditioner having a front air outlet so that they can be divided and slid forward, so that the divided structural parts can be separated. By forming an auxiliary air outlet that blows air downward from the main casing when it is slid and positioned forward,
The purpose is to uniformize the temperature distribution in the room by making it possible to supply air to the space in front of and directly below the main body casing with a simple structure.

(Structure of the invention) In order to achieve the above object, the solution of the invention is that a front air outlet is provided at the lower front of the main body casing, which communicates with the fan via a discharge passage and blows out air from the fan forward. An air conditioner is assumed. In contrast, the lower wall portion constituting the lower wall of the front air outlet is separated from the inner wall of the discharge passage on the rear side, is provided separately, and can be slid forward from a position where it is combined with the inner wall of the discharge passage. It is supported on the main body casing. Furthermore, when the lower wall part slides forward, the upper end of the divided part becomes an opening that opens toward the air flow from the fan, and the lower end opens into the lower surface of the main body casing to direct the air from the opening downward. It is designed to act as an auxiliary outlet for blowing air out.

(Effect of the invention) Therefore, according to the invention, in an air conditioner in which the front air outlet is provided at the lower front of the main body casing for blowing air forward from the fan, the lower wall portion of the front air outlet is Since the auxiliary air outlet is formed on the bottom surface of the main casing by sliding the fan, the air from the fan is blown forward from the front air outlet through the discharge passage, and a portion of the air is also transferred to the auxiliary air outlet. The indoor temperature distribution can be made uniform by the air blown downward from the outlet and in two directions from both outlets. In addition, the front air outlet is configured so that the lower wall of the front air outlet can be divided and slid forward, which eliminates the need for a conventional damper and simplifies the structure, which is advantageous. be.

(Example) Hereinafter, an example as a specific example of the technical means of the present invention will be described based on the drawings.

1 to 3 show a first embodiment in which the present invention is applied to an indoor unit A for an air conditioner that can be hung from a ceiling or hung from a wall. 1 is the main body casing of the indoor unit A, and as shown in FIG.
A suction port 2 is provided at the upper front of the main body casing 1, and a heat exchanger 3 is provided in the main casing 1 opposite to the suction port 2.
A cross-flow type fan 4 is provided behind the heat exchanger 3. Further, 5 is a fan housing of the fan 4 described above.

The front surface of the fan housing 5 is formed in a concave shape toward the front corresponding to the outer peripheral surface of the fan 4,
The lower part thereof is formed to be inclined toward a front air outlet 8, which will be described later, provided at the lower front of the main body casing 1, and has a discharge passage 6 that guides air discharged from the fan 4 to the front air outlet 8. It is configured.

Further, the lower front end of the main body casing 1 is connected to the fan 4 via the discharge passage 6 by the inner surface of the front end of the lower part of the fan housing 5 and the lower surface of the drain pan 7 disposed below the heat exchanger 3. A front air outlet 8 is formed in which the air sucked from the suction port 2 by the fan 4 is heat-exchanged by a heat exchanger 3 and then passed through a discharge passage 6 to the front air outlet 8.
It is configured to blow out from the front.

A lower wall portion 9 constituting the lower wall of the front air outlet 8 is divided from the inner wall (fan housing 5) of the discharge passage 6 on the rear side and provided separately. Further, as shown in FIG. 3, the lower wall portion 9 has rod-shaped locking portions 1 on each of its left and right sides.
1 and 11 are provided, and the locking portions 11 and 11 are slidably engaged with an engagement elongated hole 12 that is long in the front-rear direction and is provided at the lower part of the side plate 1a of the main body casing 1, as shown in FIG. It is supported so that it can slide forward from a position where it joins the inner wall of the discharge passage as shown by a solid line in FIG. The dividing portion 10 between the lower wall portion 9 and the inner wall of the discharge passage is formed in a shape that is curved diagonally forward and downward from the inner wall surface of the discharge passage 6, and when the lower wall portion 9 slides forward (first 2), the upper end of the dividing portion 10 becomes an opening that opens toward the air flow from the fan 4,
The lower end opens at the lower surface of the main casing 1 and serves as an auxiliary outlet 13 that blows air from the opening (part of the air from the fan 4) downward.

In addition, 14 is a suction grill arranged at the suction port 2,
Reference numeral 15 denotes a horizontal blade that is supported at a variable angle in the vertical direction by the front air outlet 8 and adjusts the direction of the air blown forward from the front air outlet 8; 16, ... are the front air outlet 8.
These are vertical blades that are supported at a variable angle in the left and right direction on the lower wall portion 9 of the 100 and adjust the direction of the air blown out forward from the front air outlet 8.

Therefore, in the first embodiment, during heating, the lower wall portion 9 constituting the lower wall of the front air outlet 8 is divided from the inner wall of the discharge passage 6 and slid forward, so that the lower surface of the main body casing 1 is removed. Since the auxiliary air outlet 13 is formed in the front air outlet 8 and the auxiliary air outlet 13 to blow out a part of the heating air sent from the fan 4 to the lower part of the main body casing 1, the front air outlet 8 and the auxiliary air outlet 13 are connected to the front and the lower side. Air can be blown out in two directions, and the air blown out from the auxiliary outlet 13 can effectively condition the air in the space directly below the main body casing 1. It goes without saying that air may be blown out in two directions even during cooling.

Furthermore, by changing the amount by which the lower wall portion 9 slides forward, the opening area of the auxiliary outlet 13 can be changed to easily adjust the amount of air blown downward from the auxiliary outlet 13.

Moreover, since the lower wall portion 9 slides forward, air can always be directed forward and blown out from the front air outlet 8. Further, an auxiliary outlet 13 is formed by the lower wall portion 9 and the dividing portion 10 of the inner wall of the discharge passage 6, and the air blown out from the auxiliary outlet 13 is always supplied regardless of the sliding amount of the lower wall portion 9. The air is blown out along the divided portion 10 in a downward direction.
Therefore, the blowing direction of the air blown out from both the blow-off ports 8 and 13 can always be maintained in a constant direction.

Further, the lower wall portion 9 is connected to the fan housing 5.
It is installed by dividing the existing components of the indoor unit A, and there is no need to provide an auxiliary air outlet in the main body casing or add a damper as in the past, so the structure is simple and advantageous. It is.

In addition, the lower wall portion 9 constituting the auxiliary outlet 13
Since the dividing portion 10 has a shape that is smoothly curved diagonally forward and downward, the air sent diagonally downward from the fan 4 through the discharge passage 6 can be smoothly guided to the auxiliary outlet 13 and easily merge. Thus, downward air can be reliably blown from the auxiliary air outlet 13. Furthermore, this does not result in short circuits.

4 to 6 show a second embodiment of the present invention, in which, in addition to the structure of the first embodiment, an arcuate guide blade 17 is provided at the auxiliary outlet 13 to guide air laterally. As shown in FIG. 4, the guide blades 17 are provided on both left and right sides of the rear surface of the lower wall portion 9, and when the lower wall portion 9 is joined to the inner wall of the discharge passage, the guide blades 17 are provided on the inner wall of the discharge passage. The fifth
On the other hand, when the lower wall portion 9 is slid forward, it is drawn out to the auxiliary outlet 13 (Figure 6), and a part of the air sent from the fan 4 to the auxiliary outlet 13 is transferred to the arc-shaped surface. It is configured to be guided laterally by. That is, in this embodiment, in addition to the effects of the first embodiment, the lower wall portion 9
When the main body casing 1 is slid forward, air can be blown out to the side of the main body casing 1, and the temperature distribution in the room can be made more uniform.

Furthermore, FIG. 7 shows a third embodiment of the present invention,
The present invention is applied to a ceiling-suspended indoor unit for an air conditioner, and the lower wall portion 20 forming the lower wall of the front air outlet 19 can be divided from the inner wall of the discharge passage 21 and can slide forward. In addition to providing
The bottom plate 22 of the main body casing 22 corresponds to the divided part.
An opening 23 is provided in a, and the opening 23 is opened by sliding the lower wall portion 20 forward to open the auxiliary air outlet 2.
4, the air sent from the fan 25 is heat-exchanged by the heat exchanger 26 and then blown out from the front air outlet 19 and the auxiliary air outlet 24, and the same effect as the first embodiment is achieved. It is something to play.

FIG. 8 shows a fourth embodiment of the present invention, in which the present invention is applied to a ceiling-embedded indoor unit for an air conditioner. Lower wall portions 29 and 30 forming the lower wall
are provided so as to be splittable and slidable forward from the inner walls of the discharge passages 31 and 32, and openings 34 and 35 are provided in the bottom plate 33a of the main body casing 33 corresponding to the split portions, and the lower wall portions 29 and 30
The openings 34 and 35 are opened by sliding to form auxiliary air outlets 36 and 37, and after the air sent from the fan 38 is heat exchanged with the heat exchangers 39 and 40, it is connected to the front air outlets 27 and 28 and the auxiliary air outlets 36 and 37. Exit 36, 37
The air is blown out from the air, and the same effect as in the first embodiment is achieved.

The auxiliary air outlet can be formed by sliding the lower wall forward by providing an opening in the bottom plate of the main casing as in the third and fourth embodiments above, and opening the opening by sliding the lower wall forward. Although it may be opened to form an auxiliary outlet, without providing such an opening, when the lower wall portion slides forward as shown in FIG. The edge may also be cut off so that the auxiliary air outlet is directly formed by sliding the lower wall part forward. In this case, the bottom plate does not protrude and remain in front of the lower wall part when not sliding, and the front air outlet This is preferable because it does not affect the air blowing out at all.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention,
FIG. 1 is an overall perspective view, FIG. 2 is a vertical sectional view of FIG. 1, FIG. 3 is an exploded perspective view of the slide support structure relative to the lower wall, and FIGS.
Embodiment 4 is a perspective view of the main part, FIGS. 5 and 6 are sectional views showing the guide blades in a retracted state and a pulled out state, respectively, and FIG. 7 shows the third embodiment, and FIG. The figures are equivalent to FIG. 2 showing the fourth embodiment, and FIGS. 9 and 10 are equivalent to FIG. 2 showing the conventional example. A... Indoor unit, 1... Body casing, 4...
Fan, 6...Discharge passage, 8...Front air outlet, 9
...Lower wall portion, 10...Divided portion, 13...Auxiliary air outlet, 19...Front air outlet, 20...Lower wall portion,
21...Discharge passage, 22...Main casing, 2
4... Auxiliary air outlet, 25... Fan, 27, 28
...Front air outlet, 29,30...Lower wall part, 3
1, 32...Discharge passage, 33...Main casing, 36, 37...Auxiliary air outlet, 38...Fan.

Claims (1)

[Scope of utility model registration request] In an air conditioner in which a front air outlet 8 is provided at the lower front of the main body casing 1 and communicates with the fan 4 via a discharge passage 6 and blows out air from the fan 4 forward, the lower wall of the front air outlet 8 is provided. The lower wall portion 9 constituting the lower wall portion 9 is separated from the inner wall of the discharge passage on the rear side and is provided separately, and is supported by the main body casing 1 so as to be able to slide forward from the position where it joins the inner wall of the discharge passage. The upper end of the portion 10 becomes an opening that opens toward the air flow from the fan 4 when the lower wall portion 9 slides forward;
An air conditioner characterized in that its lower end is formed to be an auxiliary outlet 13 that opens at the lower surface of the main body casing 1 and blows out air from the opening downward.