JPH0828901A - Indoor unit of air conditioner - Google Patents

Abstract

PURPOSE:To prevent condensation from being produced at a lower portion of a casing by preventing part of cold air from leaking from the side of a movable diffuser in cooling operation. CONSTITUTION:There is an indoor unit of an air conditioner which can include a vertical air direction plate 11 provided at a blow outlet for directing vertically fan air into a room and a movable diffuser 13 for rotating frontally a lower part of the blow outlet upon heating operation. The vertical air direction plate 11 is rotated substantially horizontally, and the movable diffuser 13 is kept at a state thereof where it is directed upward as illustrated in the drawing. With such a situation a gap A is formed in the side of the movable diffuser 13 so that part of cold air directed toward the blow outlet leaks to the lower part from the gap A. In order to prevent the cold air from leaking step parts 14 are provided in the left and right of the movable diffuser 13 and a stopper 16 in contact with the steps 14 is provided on a back surface plate 15 of an air passage integrally therewith, and further the gap A is blocked with a rib 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an air outlet of an indoor unit of an air conditioner.

[0002]

2. Description of the Related Art A side view of the interior of an indoor unit of an air conditioner is shown in FIG.
And a front cover 3 detachably attached to the main body 2.
And a front panel 4 attached to the front cover 3 so as to be openable and closable. A suction port 5 for taking in indoor air is provided in the upper part of the housing 1 (the upper part of the front cover 3 and the front panel 4), and a blowout port for sending the heat-exchanged air into the room at the lower front part. 6 is formed. An air filter 8 and an indoor heat exchanger 9 bent back and forth are provided in an air passage 7 connecting the suction port 5 and the air outlet 6.
And a blower (cross flow fan) 10 are arranged, and a vertical wind direction plate 11 is provided at the outlet 6 to vertically adjust the wind direction into the room.
And a movable diffuser 13 are provided, and the air that has undergone heat exchange by the indoor heat exchanger 9 is sent to the outlet 6 by the blower 10, and the wind direction into the room is adjusted up and down by the vertical wind direction plate 11 and the movable diffuser 13. The upper and lower wind direction plates 11 and the movable diffuser 13 during the cooling operation.
Is controlled substantially horizontally to reduce the fall of cold air, and during heating operation, the vertical wind direction plate 11 is controlled substantially vertically as shown in FIG. 2, and the movable diffuser 13 is moved forward to the position shown by the solid line. It is adapted to rotate so as to widen the blow-out port 6 to promote the descent of warm air.

[0003]

By the way, since the movable diffuser 13 needs to be rotated as described above in accordance with the operation mode, a gap between the movable diffuser 13 and the side wall 17 of the outlet 6 is shown in FIG. Although a gap A is provided as shown in Fig. 2, in the cooling operation, a part of the cool air flowing from the blower 10 side to the outlet 6 may leak from the gap A to the lower part, and the bottom of the housing 1 may be condensed. is there. Therefore, it is an object of the present invention to provide an indoor unit of an air conditioner capable of blocking the cold air leak from the above-mentioned gap A.

[0004]

The present invention has been made to solve the above problems, and an air filter is provided in an air passage connecting an intake port at the upper part of a housing and an outlet port at the lower part of the same housing. And an indoor heat exchanger, and a blower that sends out the air that has been heat-exchanged by the indoor heat exchanger to the air outlet, and a vertical wind direction plate that vertically adjusts the air direction into the room at the air outlet, In the structure in which the lower part of the air outlet is provided with a movable diffuser that rotates forward, a step is provided on the left and right upper surfaces of the movable diffuser, and a stopper that comes into contact with the step is provided on the housing side.

[0005]

With the above structure, when the movable diffuser is directed upward during the cooling operation, the steps formed on the left and right upper surfaces of the movable diffuser overlap the stoppers provided on the housing side, so that the movable diffuser and the side wall of the outlet can be moved. The gap between the diffusers is closed from the upper part, so that there is no leakage of cold air from the gap.

[0006]

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing the appearance of an indoor unit. Reference numeral 1 denotes a main body 2, a front cover 3 detachably attached to the main body 2, and a front panel 4 attached to the front of the front cover 3 so as to be openable and closable. It is a housing consisting of. The housing 1 has an inlet 5 for indoor air in the upper part and the front part thereof, and an outlet 6 in the lower part front part. The inside of the center of the housing 1 is viewed from the side as shown in FIG. 2, and a detachable air filter 8 is provided in the air passage 7 between the suction port 5 and the air outlet 6.
And the indoor heat exchanger 9 divided into a plurality of parts and bent back and forth
And a blower (cross flow fan) 10 for sending out the air that has been heat-exchanged by the indoor heat exchanger 9 to the outlet 6.
And the air outlet 6 is provided with a vertical airflow direction plate 11 for vertically adjusting the blowing of air into the room. A movable diffuser 13 that has a drive unit 12 at the lower portion of the outlet 6 and rotates the lower portion of the outlet 6 forward is provided.

The positions of the vertical wind direction plate 11 and the movable diffuser 13 change according to the operation mode. For example, during cooling operation, the vertical wind direction plate 11 is rotated so as to be substantially horizontal, while the movable diffuser 13 is It is held at the position indicated by the broken line. In such a state, the cold air from the air outlet 6 can be sent to a long distance without being lowered. Further, in the heating operation, the vertical wind direction plate 11 is rotated in a substantially vertical direction as shown to close the front of the air outlet 6, and the movable diffuser 13 is also rotated to a position shown by a solid line. The front and back space is expanded from A to B to improve the flow of warm air into the room.

FIG. 3 is a perspective view showing a feature of the present embodiment, and a step 14 is formed on the left and right of the upper surface of the movable diffuser 13. On the other hand, stoppers 16 that are in contact with the step 14 on the movable diffuser 13 side are integrally formed on the lower left and right sides of the rear plate 15 of the air passage 7. Stopper 16
One side of the movable diffuser 13 is in contact with the side wall 17 of the air outlet 6, and the step 14 provided on the left and right of the movable diffuser 13 is in contact with the stopper 16 during the cooling operation. Even if the gap A is provided in the
No cold air leaks from it. In addition to the configuration described above, for example, the left and right sides of the movable diffuser 13 are extended to the lower part of the housing 1 (the lower part of the left and right side walls of the air outlet 6)
If this extended portion is brought into contact with the lower portion of the housing 1,
The same effect as the countermeasure shown in can be obtained.

[0009]

With the indoor unit as described above, cold air does not leak from both ends of the movable diffuser during the cooling operation, and a product of stable quality can be obtained.

[Brief description of drawings]

FIG. 1 is an external perspective view of an indoor unit according to the present invention.

FIG. 2 is a side sectional view of an indoor unit according to the present invention and a conventional example.

FIG. 3 is a perspective view of a main part of an indoor unit showing an embodiment of the present invention.

FIG. 4 is a perspective view of a main part of an indoor unit showing a conventional example.

[Explanation of symbols]

 1 Case 5 Suction Port 6 Air Outlet 7 Air Passage 9 Indoor Heat Exchanger 10 Blower (Cross Flow Fan) 11 Vertical Wind Direction Plate 12 Drive Unit 13 Movable Diffuser 14 Step 15 Back Plate 16 Stopper 17 Side Wall

Claims (4)

[Claims] 1. An air filter, an indoor heat exchanger, and an air heat-exchanged by the indoor heat exchanger are provided in an air passage connecting an intake port at an upper part of the housing and an outlet port at a lower part of the same housing. A blower for delivering to the blowout port is provided, and a vertical airflow direction plate that adjusts the wind direction into the room up and down is provided at the blowout port, and a movable diffuser in which the lower part of the blowout port is turned forward is provided. An indoor unit for an air conditioner, characterized in that a step is provided on the left and right upper surfaces of the movable diffuser, and a stopper that comes into contact with the step is provided on the housing side. 2. An air filter, an indoor heat exchanger, and the air that has been heat-exchanged by the indoor heat exchanger are provided in an air passage that connects a suction port at an upper part of the housing and an outlet at a lower part of the housing. A blower for delivering to the blowout port is provided, and a vertical airflow direction plate that adjusts the wind direction into the room up and down is provided at the blowout port, and a movable diffuser in which the lower part of the blowout port is turned forward is provided. An indoor unit for an air conditioner, characterized in that the left and right sides of the movable diffuser are extended to the lower part of the housing. 3. The indoor unit for an air conditioner according to claim 1, wherein a side of the stopper is in contact with a side wall of the outlet. 4. In the cooling operation, the vertical wind direction plate is rotated substantially horizontally, and the movable diffuser is held upward. In the heating operation, the vertical wind direction plate is rotated substantially vertically, and the movable diffuser is rotated. The indoor unit of an air conditioner according to claim 1 or 2, wherein the indoor unit is rotated and held forward.