JPH06313613A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide an air conditioner capable of ensuring a variable air flow rate at a blow-off outlet and reducing temperatures at a ceiling and a floor surface in a room for proper air conditioning. CONSTITUTION:An air conditioner which accommodates a heat exchanger 4 and a fan 6, etc., therein is buried inside a ceiling 1 in a root and a decorative panel 12 is mounted on the ceiling 1 which panel includes a suction inlet 13 and a blow-off outlet 14 for room air. Further, a wind vane 15 is rotatably provided on one side of the blow-off outlet 14 and an auxiliary wind vane 16 is disposed on the other side of the blow-off outlet 14 which vane 16 is rotated when a temperature difference between suction air and blow-off air is greater to reduce the size of a blow-off gap of air between it and the wind vane 15. Hereby, a flow rate of the blow-off air is increased.

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 to an air conditioner which is buried in a ceiling of a room to perform desired air conditioning in the room.

[0002]

2. Description of the Related Art Conventionally, an air conditioner is often used in which the air conditioner is embedded in a ceiling of a room and the air conditioner is used to air-condition the room to improve the space efficiency of the room. (Eg, fairness 3-
See Japanese Patent No. 27226.

In such a conventional air conditioner,
A predetermined outdoor unit has a heat exchanger connected via a refrigerant pipe and an air blower for the air after heat exchange by this heat exchanger, respectively, and is built in the ceiling surface portion below the air conditioner, A decorative panel is provided which covers the air conditioner and is provided with a suction port and a discharge port for indoor air.

Then, by operating the air conditioner, room air is taken in from the suction port of the decorative panel to exchange heat with the heat exchanger, and the air after the heat exchange is blown into the room from the air outlet by the blower. It is blown out, so that the desired air conditioning of the room is performed. During air conditioning by such an air conditioner, conventionally, the opening size of the blowout port of the decorative panel is constant, and when the capacity of the blower is constant, the blowout air at this blowout port portion is constant. The flow velocity of was also constant.

[0005]

However, in the conventional air conditioner, for example, during heating, the specific gravity of the air is reduced due to heat exchange, so that this air reaches the floor surface in the room. If the flow velocity of the air blown from the air outlet is constant as described above, the temperature difference between the floor surface in the room and the vicinity of the ceiling becomes large, and the temperature of the floor surface becomes lower than the temperature of the ceiling portion. Therefore, there is a problem that proper heating cannot be performed.

Further, during cooling, since the cooled air has a large specific gravity, it easily reaches the indoor floor surface.
When the flow velocity of the air outlet is constant, since the effect of stirring the indoor air is extremely small, similarly, the temperature difference between the indoor floor surface and the vicinity of the ceiling becomes large, and the floor surface portion becomes too cold than the ceiling portion. However, there is still a problem that proper cooling cannot be performed.

The present invention has been made in view of the above points, and the flow velocity of the air at the air outlet portion can be varied, and the temperature of the ceiling portion and the floor portion of the room can be reduced to perform proper air conditioning. An air conditioner that can be used is provided.

[0008]

In order to solve the above-mentioned problems, an air conditioner according to the present invention is buried inside a ceiling in a room, a heat exchanger, a blower and the like are housed therein, and the ceiling portion is provided with In an air conditioner that covers a heat exchanger and the like, and is equipped with a decorative panel having an inlet and an outlet for indoor air, a wind direction plate is rotatably disposed on one side of the outlet. On the other side of the air outlet, an auxiliary air flow direction plate is arranged to rotate when the temperature difference between the intake air and the air flow exceeds a predetermined value to reduce the size of the air flow gap between the air flow direction plate and the air flow direction plate. It was done.

[0009]

According to the air conditioner of the present invention, when the difference between the temperature of the intake air and the temperature of the blown air exceeds a predetermined value, the auxiliary wind direction plate is rotated toward the wind direction plate side to form the auxiliary air direction plate. Since the air gap size of the air formed between them is made small, it is possible to increase the flow velocity of the air blown out at the air outlet portion, which allows the air having a relatively low specific gravity to be supplied to the room during heating. In addition, it is possible to increase the effect of agitating the indoor air during cooling, and reduce the temperature difference between the indoor floor surface and the ceiling.

[0010]

Embodiments of the present invention will be described below with reference to FIGS.

FIG. 1 shows an embodiment of an air conditioner according to the present invention, in which a mounting opening 2 is formed at a predetermined position of a ceiling 1 in a room, and the inside of the mounting opening 2 is formed. A predetermined air conditioner 3 is attached to the portion. Inside the air conditioner 3, a predetermined heat exchanger 4 is provided at 30 ° to 4 °.
It is arranged with a small inclination angle of about 5 °.
A predetermined tube 5 is built inside the heat exchanger 4 so as to meander in a direction perpendicular to the drawing. The tube 5 is configured to allow the refrigerant from an outdoor unit (not shown) in which the refrigerant compressor, the four-way valve, the outdoor heat exchanger, and the pressure reducing device are built in to be conducted. A blower 6 including, for example, a cross flow fan is disposed near the outflow side of the.

An internal suction grill 7 is disposed on the air suction side surface 4a of the lower surface of the heat exchanger 4, and the internal suction grill 7 extends in the lateral direction of the heat exchanger 4. Four guide vanes 8 are provided. Side plates 9 extending in the longitudinal direction of the heat exchanger 4 and holding the guide vanes 8 are connected to both ends of the internal suction grill 7,
The upper ends of the guide blades 8 are gently inclined so that the air sucked into the heat exchanger 4 is concentrated below the blower 6. Further, the lower end portion of the guide vane 8 is bent and formed in a substantially V shape, and this bent portion is a sub-drain pan 10.

Further, a main drain pan 11 is disposed below the lower end of the heat exchanger 4, and the main drain pan 11 is formed on the surface of the heat exchanger 4 by heat exchange with room air. As a result, the drain dropped into the sub-drain pan 10 is introduced.

A decorative panel 12 is disposed on the ceiling 1 so as to cover the air conditioner 3 and the main drain pan 11 and the decorative panel 12 is provided.
In the lower position of the heat exchanger 4, the indoor air suction port 1
3 is formed, and at the position below the blower 6 of the decorative panel 12, an air outlet 14 for air after heat exchange is formed.

Further, in this embodiment, as shown in FIGS. 2 to 4, an airflow direction plate 15 is rotatably disposed on one side of the outlet port 14 of the decorative panel 12, and On the other side of the air outlet 14, an auxiliary wind direction plate 16 having a smaller length dimension than the wind direction plate 15 is rotatably arranged.

Next, the operation of this embodiment will be described.

In this embodiment, first, the air conditioner 3
In the state where the air flow is stopped, as shown in FIG.
6 is directed downward and is pivotally supported along the blower outlet inner wall 14a, and the wind direction plate 15 is rotated to a horizontal position. In this state, the discharge port of the decorative panel 12 is It is kept closed. Although not shown, a temperature sensor for detecting the temperature of the indoor air (suction air) and the temperature of the heat exchanger 4 is provided, and the blowout temperature can be calculated from the temperature detected by these sensors.

Then, by operating the air conditioner 3, as shown in FIG. 4, the wind direction plate 15 is rotated to direct the wind direction plate 15 downward, and in this state, the blower 6 is operated. By doing so, the room air is taken in from the suction port 13 of the decorative panel 12 and exchanges heat with the heat exchanger 4, and the air after the heat exchange is blown by the blower 6 to the outlet 1.
The air is blown out into the room from 4, so that the desired air conditioning of the room is performed.

Further, in this embodiment, the temperature of the air blown from the air outlet 14 of the decorative panel 12 and
For example, when the difference between the temperature of the indoor air (intake air) detected by the remote controller of the air conditioner 3 becomes a predetermined value or more, as shown in FIG. It is rotated to the 15 side to reduce the gap size of the opening formed between the air flow direction plate 15 and the flow velocity of the blown air at the blowout port 14 portion.

Therefore, during heating, it is possible to blow out air having a relatively low specific gravity (for example, the temperature of blown air is 45 ° C. or less) at a high flow velocity with respect to the floor surface in the room.
Thus, the blown air can reach the indoor floor surface, and the temperature difference between the indoor floor surface and the vicinity of the ceiling 1 can be reduced. Also, during cooling,
By increasing the flow velocity of the air outlet 14, it is possible to enhance the effect of agitating the indoor air, and also it is possible to reduce the temperature difference between the floor surface in the room and the vicinity of the ceiling 1.

Therefore, in this embodiment, in both heating and cooling, when the temperature difference between the ceiling 1 portion and the floor surface portion is large, the auxiliary wind direction plate 16 is rotated to move between the wind direction plate 15 and the auxiliary wind direction plate 15. By making the gap size small,
Since the flow velocity of the air in the air outlet 14 can be increased, warm air having a low specific gravity can reach the floor surface during heating, and cold air that easily stays on the floor surface during cooling. The air can be agitated, and as a result, the temperature difference between the vicinity of the ceiling 1 and the floor portion can be easily reduced, and proper cooling and heating can be performed.

The present invention is not limited to the above-mentioned embodiment, but can be variously modified as necessary, and for example, it can be assisted in multiple stages depending on the temperature difference between the intake air and the blown air. The wind direction plate 16 may be rotated.

[0023]

As described above, the air conditioner according to the present invention, when the temperature difference between the intake air and the blown air is large,
Since the flow velocity of the air in the outlet part can be increased by the auxiliary wind direction plate, warm air with a low specific gravity can reach the floor surface during heating.
At the time of cooling, it is possible to stir the cold air that tends to stay on the floor surface portion, and as a result, it is possible to easily reduce the temperature difference between the vicinity of the ceiling and the floor surface portion, and to perform proper cooling and heating, etc. Produce the effect of.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of an air conditioner according to the present invention.

FIG. 2 is an explanatory diagram showing an operating state in which the flow velocity of the air outlet of the air conditioner of FIG. 1 is increased.

FIG. 3 is an explanatory view of an outlet part showing a stopped state of the air conditioner of FIG. 1.

FIG. 4 is an explanatory view of an outlet part showing a normal operation state of the air conditioner of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling board 3 Air conditioner 4 Heat exchanger 6 Blower 12 Decorative panel 13 Suction port 14 Outlet port 15 Wind direction plate 16 Auxiliary wind direction plate

Claims (1)

[Claims] 1. A room is embedded inside a ceiling, a heat exchanger, a blower, etc. are housed inside, the ceiling is covered with the heat exchanger, etc., and an inlet and an outlet for indoor air are respectively provided. In an air conditioner equipped with a formed decorative panel, a wind direction plate is rotatably arranged on one side of the air outlet, and the temperature difference between the intake air and the air on the other side of the air outlet is An air conditioner comprising: an auxiliary wind direction plate that is rotated when the value is larger than a predetermined value to reduce the size of the air gap between the air direction plate and the air flow direction plate.