JPH0354331Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a ceiling-embedded air conditioner that is installed in the ceiling of a building or the like and has a blowout louver.

BACKGROUND ART Conventionally, a ceiling-embedded air conditioner installed in the attic of a building or the like has a configuration as shown in FIG. 3. That is, the opening 2 in the ceiling surface 1
A main body 4 of the air conditioner is housed in the attic 3 so as to face the main body 4, and a blower 5 for indoor circulation and a heat exchanger 6 for passing cold and hot water are provided in the main body 4. . A cassette plate 7 is mounted on the lower side of the main body 4 from below at the opening 2 of the ceiling surface 1. This cassette plate 7 is provided with an inlet 8 and an outlet 9 on the same surface, and the inlet 8 has a plurality of partition vanes 10 already fixed to the frame of the cassette plate 7, and a partition vane frame 10a. The air outlet 9 is equipped with a louver 12 whose direction can be freely changed around a fulcrum 11 using a hand or a tool.
The louver 12 is oriented outward during cooling, that is, in the opposite direction to the suction port 8, and is oriented vertically as shown by the dotted line during heating, so that the blown air during heating reaches as far downward as possible.

Problems to be Solved by the Invention In such a conventional configuration, the louver 12 is made vertical during heating to blow out hot air as long as possible downward, but the partition vane frame 1
Since the suction port 8 and the blow-off port 9 are adjacent to each other with only the space 0a separated, a part of the air blown out from the blow-off port 9, that is, the air passing near the partition vane frame 10a, is sucked in through the suction port 8 again. This has the problem of creating a so-called short circuit, resulting in poor temperature distribution and reduced heat exchange efficiency.

This invention solves these problems,
It is an object of the present invention to provide a ceiling-embedded air conditioner that reduces the number of such short circuits and improves temperature distribution.

Means for Solving the Problem In order to solve this problem, the present invention provides a cassette plate below the main body of the air conditioner, a partition vane frame that partitions the cassette plate from the suction port, and A louver is provided on the outlet side close to the partition vane and protrudes longer than at least the lower surface of the cassette plate, and the louver is provided with a curved portion facing in the opposite direction to the suction port side.

Effect With this configuration, the air flowing in from the suction port passes through the blower and heat exchanger, and then flows to the blowout port.The air blower protrudes from the lower surface of the cassette plate for a long time and is provided in contact with the partition vane frame, and the blown air is directed by the curved part. The louver, which is spaced far apart from the suction port side, blocks the flow of air toward the suction port side and prevents short circuits.

Embodiment An embodiment of the present invention will be described based on FIGS. 1 and 2. A ceiling surface 15 of a building or the like has an opening 17 larger than the area of a main body 16 of the ceiling-embedded air conditioner, and the main body 16 is suspended above the ceiling 18 so as to face the opening 17.
Inside the main body 16 is a blower 19 for indoor air circulation.
, a heat exchanger 20 for passing cold and hot water, a drain pan 21, and a partition plate 22. A cassette plate 23 is attached to the lower side of the main body 16 from the lower side of the room. This cassette plate 23 is provided with an inlet 24 and an outlet 25 on the same surface, and the inlet 24 has a plurality of partition vanes fixed to the frame 26 (FIG. 2) of the cassette plate 23. 27, and a partition vane frame 27a located at the end of the partition vane 27 and configured to partition the air outlet 24. A plurality of louvers 29 and 29a are provided to adjust the direction, that is, the angle in the direction opposite to the suction port 24 side. The louver 29a of these louvers 29, 29a is in contact with the partition vane frame 27a. That is, when in contact with the air outlet 25 side of the partition vane frame 27a, the slope is at the solid line position during cooling.
The angle is adjusted so that it is perpendicular to the dotted line when heating. A bent portion 30 is provided at the lower end of the louvers 29, 29a, and is formed to be bent in a direction opposite to the suction port 24 side. When the louver 29a is adjusted vertically during heating, the curved portion 30 or a part of the tip of the louver protrudes from the lower surface 31 of the cassette plate 23.

In the above configuration, when the air conditioner is operated, the air flowing in from the suction port 24 is sent to the blower 1.
9. The air is blown out from the air outlet 25 after passing through the heat exchanger 20. At the air outlet 25, when cooling, adjust the louvers 29, 29a in the direction of inclination shown by the solid line so that the air does not directly hit the lower space in the room. Make it blow out horizontally. That is, the louvers 29,2
Since cold air during cooling is blown out laterally by the curved portion 30 at the tip of 9a, the temperature distribution becomes effective.

Next, during heating, the louvers 29, 29a are adjusted vertically. When the louver 29a is vertically connected to the partition vane frame 27a, its tip protrudes from the lower surface 31 of the cassette plate 23, and
The air is blown out laterally by the curved portion 30. Although the hot air blown out by this protruding curved portion 30 flows laterally, it does not flow toward the suction port 24 side, thereby preventing short circuits and directing the hot air blowing direction laterally to the living space. Therefore, warm air is blown out in a diffused manner, which is disadvantageous in terms of temperature distribution compared to when cooling, but is advantageous compared to the conventional short circuit when heating.

Effects of the Invention As is clear from the description of the above embodiments, the present invention provides a curved portion at the tip of the louver on the outlet side that is in contact with the partition vane frame of the cassette plate, and the louver is moved horizontally during cooling. During heating, it was adjusted vertically and protruded from the bottom of the cassette plate.
During cooling, the air is blown out laterally, which improves the temperature distribution during cooling, and when hot air is blown out, there is almost no short circuit, and the air is blown out in a lateral direction opposite to the suction port. Compared to the conventional short circuit, the temperature distribution is better, and therefore the heat exchange efficiency in the heat exchanger is also improved.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a ceiling-mounted air conditioner according to an embodiment of the present invention, Figure 2 is a perspective view of the cassette plate of the same ceiling-mounted air conditioner, and Figure 3 is a conventional ceiling-mounted air conditioner. FIG. 23...cassette plate, 24...suction port,
25...Air outlet, 27...Partition vane, 27a...
...Partition vane frame, 29, 29a...Louver, 3
0... Song section.

Claims (1)

[Scope of utility model registration request] A cassette plate is provided below the main body, a partition vane frame is provided to partition an air outlet and a suction port of the cassette plate, and a louver is provided on the air outlet side close to the partition vane frame and protrudes longer than at least the lower surface of the cassette plate, A ceiling-embedded air conditioner, wherein the louver is provided with a curved portion facing in a direction opposite to the suction port side.