JPH0350937B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air conditioner that improves the direction of air blowing into a room.

[Conventional technology]

Conventionally, a cassette type air conditioner is known as an air conditioner. This type of air conditioner has one-way suction, one-way blowout, one-way suction, two-way blowout, one-way suction, four-way blowout, etc.

FIG. 9 is a sectional view showing a conventional air conditioner disclosed in, for example, Japanese Utility Model Application Publication No. 58-133722. In the figure, 1 is a round cylindrical casing, 2 is a blower, and Rotate. 3 is a coil having a heat exchange function arranged around the outer circumference of the blower 2; 5 is a suction port for sucking indoor air by the blower 2; 6 is a suction introduction tube thereof; 8 is an annular shape formed around the outer circumference of the suction introduction tube 6. 9 is a drain pan provided at the bottom of the coil 3, 10 is an air filter installed in the suction port 5, and 10 is a wind guide attached to the outer periphery of the air outlet 8.

Next, the operation will be explained. The blower 2 is rotated by the drive of the motor 4, and indoor air is sucked in through the suction port 5, passes through the air filter 10, passes through the suction introduction tube 6, and is blown onto the coil 3. This indoor air undergoes heat exchange with the coil 3, passes between the casing 1 and the introduction tube 6, and is blown into the room from the outlet 8. Drain generated during heat exchange in the coil 3 is collected in a drain pan 9 and discharged to the outside.

[Problems to be Solved by the Invention] Since the conventional air conditioner is configured as described above, the air blown into the room is blown out from the entire circumference of the air outlet 8. This method of blowing air is ideal for cooling, but when heating, it is difficult for the blown air to reach the floor. Therefore, in order to make the air reach the floor surface, it is conceivable to narrow the opening size of the air outlet 8 to increase the blowing air speed, or to increase the number of rotations of the air blower 2 to increase the air volume. However, in the former case, the pressure drop at the outlet becomes large, and the rotational speed of the motor must be increased, resulting in a problem of increased noise. There were also other problems, such as the fact that even when the blowing air reached the floor, the wind could be felt in 360° directions, which was bothersome.

This invention solves the above-mentioned problems, and also improves the condition of the room in which the air conditioner is installed [○a height of the room, ○b the shape of the room (elongated room, nearly square room, etc.), ○c relative to the room position of the air conditioner],
The purpose is to obtain an air conditioner that can perform optimal air conditioning.

[Means for solving problems]

The air conditioner according to the present invention is provided with a rotatable annular plate having an opening and a closing part in an annular outlet provided on the outer periphery of an inlet, and the area of the opening of the annular plate and the closing part are adjusted. The part area can be changed arbitrarily.

[Effect]

In the air conditioner of the present invention, an annular plate having an opening and a closing part is rotatably housed in the air outlet, so the direction of air blown into the room can be arbitrarily changed, and an optimal air-conditioned environment can be obtained.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, 1 is a round cylindrical casing, and 2 is a blower, which is rotated by a motor 4. FIG. 3 is a coil having a heat exchange function arranged around the outer circumference of the blower 2; 5 is a suction port for sucking indoor air by the blower 2; a suction inlet tube 6; and a guide tube 7 drawn integrally with the suction port. A baffle plate 6a is provided behind the guide tube 7 and forms a blowing passage together with the casing 1. 8 is an annular outlet formed between the suction introduction tube 6 and the casing 1; 9 is a drain pan provided at the bottom of the coil 3; and 10 is an air filter installed within the suction port 5. In addition, 11 is a guide plate provided between the outer periphery of the air outlet 8 and the ceiling surface 12, 13 is an anchor bolt that supports the casing 1 on the ceiling slab 14,
15 is the indoor air sucked from the suction port 5 into the coil 3
This is a guide board to guide you.

Reference numeral 16 denotes an annular plate disposed within the air outlet 8, that is, in the air outlet passage between the casing 1 and the suction introduction pipe 6. As shown in FIGS. 4 to 6, this annular plate 16 has an elongated opening 16a. and closing portions 16b are provided alternately. And the closing part 16b is the closing plate 16b-
1 and 16b-2, and are constructed so that they can be freely moved and fixed to each other. and annular plate 16
A concave groove 16c is formed on the outer peripheral surface of. In the annular plate 16 constructed in this way, the concave groove 16c on the outer circumferential surface corresponds to the protrusion 1a provided on the casing 1 as shown in FIG.
A recess 17 formed at the inner circumferential portion of the introduction tube 6 and the baffle plate 6a is fitted into the recess 17, and is held rotatably.

In the air conditioner of the present invention configured as described above, when the blower 2 is rotated by the drive of the motor 4, the indoor air sucked from the suction port 5 passes through the air filter 10 and the guide tube 7 and the guide plate. 15
The signal is sent to coil 3 via . This indoor air undergoes heat exchange with the coil 3, flows down between the casing 1 and the baffle plate 6a, passes through the opening 16a of the annular plate 16, and is blown out from the outlet 8 into the room. In this way, since the annular plate 16 is rotatably provided within the blow-off passage, the wind blowing out from the blow-off port 8 can be blown out in any direction of 360 degrees depending on the position of the opening 16a. This provides an optimal air-conditioned environment.
Furthermore, depending on the shape of the room in which it is installed, for example, in the case of a rectangular room, the air conditioning effect will be good as the blowing air will be concentrated in the long side direction. 2 is moved and fixed within the annular plate 16 so that the opening 16a can provide the optimum blowout area. The same thing can be said when the ceiling of the room is high.
Furthermore, in a deformed room, if you want to blow out the air in one plane direction instead of diagonally, the closing plate 16b-
By gathering 1, 16b-2 in one direction,
Good blowing air can be obtained and an optimal air-conditioned environment can be obtained.

In addition, as shown in FIGS. 7 and 8, the annular plate 16 may be replaced with the air outlet 8.
A similar effect can be obtained by rotatably housing the barrier plates 19 attached to both ends of the arm 18 along the inside and expanding and contracting the barrier plates.

〔Effect of the invention〕

As explained above, according to the present invention, a rotatable annular plate having an opening and a closing part is accommodated in an annular outlet formed on the outer periphery of an inlet, and the opening area of the annular plate is Since the area of the closed part is arbitrarily variable, the wind from the outlet can be blown out in any direction and strength depending on the position and size of the opening in the annular plate, and it can also be adjusted to suit the structure of the room in which it is installed. An optimal air-conditioned environment can be obtained.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an installed state of an air conditioner showing one embodiment of the present invention, and FIG. 2 is an external view of the same.
Figure 3 is a cross-sectional view of the main part of the annular plate in its installed state;
Figures 6 through 6 are a perspective view and a sectional view of the annular plate, and Figure 7 is a perspective view and a sectional view of the annular plate.
8 and 8 are perspective views and parts perspective views showing the usage state of another embodiment in place of the annular plate, and FIG. 9 is a sectional view of a conventional air conditioner. In the figure, 1...Casing, 2...Blower, 3...Coil, 4...Motor, 5...Suction port, 8...Blowout port, 10...Air filter, 1
6... Annular plate, 16a... Opening, 16b-1,
16b-2...It is a closing plate. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. In a ceiling-mounted cassette type air conditioner that has a built-in blower and heat exchange function, there is an inlet in the center of the air conditioner that sucks indoor air, and the air is exchanged and circulated to the outer periphery of this inlet. An annular outlet for blowing air into the room is provided, a rotatable annular plate with alternating openings and closed parts is provided inside the outlet, and the area of the opening and the area of the closed part of the annular plate are An air conditioner characterized by being configured so that it can be changed arbitrarily.