JPS5938499B2 - air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to provide an air-conditioned space with a wide range and a small indoor temperature distribution by periodically changing the blowout angle and the blowout wind speed.

In the past, there were many examples in which the blowout angle and blowout air speed (air volume) were simply changed periodically, but when trying to obtain a wide range of air-conditioned spaces with small indoor temperature distribution, the following problems arise. there were.

The problems when changing the blowout angle and the blowout wind speed at the same time are as follows.

■ When only the blowout angle is changed in cycle.

This is generally done by a wind direction changing device in which a vertical vane that swings at the air outlet l is provided, but since the speed of the blowing air is uniform during the swinging action, the distance that the cool air or warm air reaches is constant; The trajectory of conditioned air is always the same.

Therefore, the area located in the trajectory of the conditioned air will be cold when air conditioned and hot when heated, resulting in poor indoor temperature distribution.

■ When only the blowout air speed (air volume) is changed in cycle.

In this case, in order to make the indoor temperature distribution uniform, some methods change the rotation speed of the fan to change both the air volume and the air speed, but with this method, the air volume is changing, so if the amount of heat dissipation is constant, the blowing temperature will change significantly. This makes it difficult to make the indoor temperature distribution uniform.

Even if the blowing temperature is constant and only the blowing wind speed is changed, the temperature is uniform over a wide range (1
As in case (2) above, the area located in the trajectory of the conditioned air will be cold when air conditioned and hot when heated, resulting in poor temperature distribution throughout the room.

■ When the blowout angle and blowout wind speed are changed periodically.

For example, if the change cycle of the blowout angle and blowout wind speed is the same, the direction and wind speed of the conditioned air blown into the room will be constant, so the indoor wind speed distribution will be uneven, and the conditioned air will reach different places in the room. There will be places where it will reach the temperature and places where it will not reach, and the temperature distribution will deteriorate.

The present invention solves the above conventional drawbacks, and provides a wind direction changing device for periodically changing the blowing angle, a blowing air speed changing device for periodically changing the blowing air speed, the wind direction changing device, and the blowing air speed. This configuration includes a cycle setting device that sets a difference in the change cycle from the wind speed change device, and one embodiment thereof will be described below with reference to the drawings.

In Fig. 1, 1 is a main body that houses a heat exchanger 2, a blower 3, etc., with an inlet 4 at the upper front of the main body and an outlet 5 at the lower part.
has been established.

The air outlet 5 is provided with a wind direction changing device 6 for periodically changing the blowing angle in the horizontal direction, a blowing wind speed changing device 7 for periodically changing the blowing air speed, and a horizontal vane for manually changing the blowing angle in the vertical direction. 8 and ℃・ru.

Reference numeral 9 denotes an impeller provided within the blower 3 via a fan motor 10.

11 is a drain receiver. FIG. 2 shows the configuration of the wind direction changing device 6 and the Suita wind speed changing device 7.

In the figure, 12 is a low-speed motor, 13 is a rotating shaft of the motor 12, and the rotating shaft 13 includes a disk cam 15 for vertical movement of a slide sozzle 14 that changes the blowing air speed by narrowing the blowing outlet area, and An end face cam 17 for swinging motion of a plurality of vertical vanes 16 rotatably arranged in parallel is fixed at the outlet.

18 is rotatably attached to the vertical vane 16, a connecting bar is pressed against the end cam 17 by a spring 19, and the slide nozzle 14 is pressed against the disc cam 15 by a large spring 20.

The number of operations of the slide nozzle 14 and the vertical vane 16 by the disc cam 15 and end cam 17 is determined by the number of times the low speed motor 1
2, the slide nozzle 14 makes one reciprocation and the vertical scale -716 makes five reciprocations.

This low-speed motor 12, rotation 13, and disc cam 1 for earthwork operation
5, end face cam 17 for swinging operation, connecting bar 18, barb 1
9 constitutes a period setting device.

With the above configuration, when the low-speed motor 12 is rotated, the area of the outlet changes periodically due to the reciprocating movement of the slide nozzle 14, and the blowing air speed changes periodically.

At the same time, due to the reciprocating movement of the vertical vanes 16, the blowing angle changes periodically in the left-right direction of the device.

In this case, as described above, the period of the wind direction is five times the period of the wind speed.

As a result of the above operation, the Suita angle and the blowing wind speed change over time as shown in FIG. 3.

While the blowing angle changes from side to side five times, the blowing wind speed changes by one period.

Therefore, as shown by the dotted line, the blowing wind speed at the same blowing angle changes sequentially.

4 and 5 illustrate the operation of blowing out cold air during cooling operation.

Reference numeral 1 denotes an air conditioner body installed on the upper part of the indoor wall body 21.

The air blown out during cooling naturally falls because it is lower in temperature than room temperature.

As shown in Figure 4, the advancing speed of the blown air is 0.251TI/
The horizontal distance from the air outlet to the position S is called the reach distance and is indicated by X.

The vertical distance from the air outlet to the center of the airflow is called vertically falling dust or falling dust and is represented by Y.

When the change in air volume is small, the reach distance X of the cold air becomes longer as the blowing wind speed increases, and conversely, as the blowing wind speed becomes slower, the reach distance X becomes shorter.

Moreover, the cold air descends by the amount of falling dust Y.

Therefore, when the air is blown out in the same direction while changing the wind speed, the cold air is blown into the space between the maximum reach distance and the minimum reach distance, and the temperature distribution in the direction of the blowout decreases.

Furthermore, if a change in the blowout angle is added, as shown in the plan view of the room in FIG. 5, while the blowout wind speed changes from the lowest wind speed to the highest wind speed, the Suita angle will change to 2.
While changing from the highest wind speed to the lowest wind speed, the blowing angle further changes by 17 Il:2.5 round trips. Therefore, the blowing wind speed changes sequentially for the same blowing angle, so it can be used over a wide range. It can blow cold air into the space.

Moreover, it can also be applied to a floor-standing type heater.

As described above, according to the present invention, by periodically changing the blowing angle and the blowing wind speed, it is possible to provide an air-conditioned space over a wide range and with a small indoor temperature distribution.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of an air conditioner according to an embodiment of the present invention, FIG. 2
Fig. 3 is an explanatory diagram showing temporal changes in the blowing angle and blowing wind speed; Figs. 4 and 5 show an air conditioner according to an embodiment of the present invention installed on an indoor wall surface. FIG. 4 is a side view and a plan view showing a state in which the device is in a state where 1...Air conditioner, 6...Wind direction change device, 7...
Outlet wind speed changing device, 12.13.15, 17.18゜1
9... Cycle setting device.

Claims (1)

[Claims] 1. A wind direction changing device that periodically changes the blowing angle;
an outlet air speed changing device that periodically changes the outlet air speed;
An air conditioner including a cycle setting device that sets a difference between the change cycles of the wind direction change device and the blowout air speed change device.