JPS625264B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to an air conditioner that has an improved method for controlling the airflow of an indoor unit, and aims to provide comfortable and energy-saving operation. Conventional air conditioners have a variable air volume notch, a wind direction changing device, etc., but these both operate independently and have no relation to each other. Furthermore, since the choice was largely left to the residents, there were the following drawbacks. In other words, for example, if a resident uses a wall-mounted air conditioner to cool the air while sleeping, if the blower operates in a strong notch and blows horizontally as shown in Figure 4, the air will only flow near the floor when the resident sleeps. Even though all you need to do is to cool the room, the indoor temperature distribution as shown in line C' in Figure 5 is formed and the entire room is cooled.
Not energy efficient. In addition, if the blower is operated at a weak angle and blows downward while residents are standing up, the cold air will stagnate near the floor, causing
The disadvantage was that the indoor temperature distribution as shown in line a' in the figure was formed, and the upper part of the room became hot, causing discomfort. Furthermore, in view of these drawbacks, residents usually did not know how to select the operating notch of the blower and the blowing direction in relation to each other. The present invention provides a lifestyle pattern selection switch in the air conditioner, and by selecting the air flow rate of the air direction changing device and the blower of the air conditioner,
This eliminates the above-mentioned conventional drawbacks. An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. In FIGS. 1 and 2, reference numeral 1 denotes an indoor unit of an air conditioner, which has a heat exchanger 2, a blower 3, etc. inside. The air outlet 4 has a wind direction changing plate 7 connected to the shaft 6 of the step motor 5 as a wind direction changing device.
is provided, and by constant forward or reverse rotation of the step motor 5, the wind direction changing plate 7 rotates to change the blowing direction horizontally or diagonally downward. In FIG. 3, the resident sleeps 8a, sits on a chair 8b,
When one of the lifestyle pattern selection switches 8 such as standing work 8c is selected, the signal is transmitted to the wind direction change control device 9 and the blower rotation speed control device 10 to control the step motor 5 and the blower motor 12. Keep the wind direction and air flow at the specified values at the same time. This predetermined value is determined when the daily life pattern is 8a as shown in the table below.

[Table] In this case, by setting the wind direction diagonally downward and reducing the airflow rate, the blown cold air will stagnate near the floor, forming an indoor temperature distribution as shown in line a' in Figure 5. It is possible to mainly cool only the part of the resident that is lit (up to about 50cm above the floor). In addition, in the case of chair 8b, by setting the wind direction diagonally downward and setting the air flow to medium, the room will be slightly more agitated than in case 8a.
By creating the indoor temperature distribution shown in line b', it is possible to mainly cool the area where the occupant is sitting on the chair (up to about 1m above the floor). Furthermore, in the case of standing work 8c, by setting the wind direction horizontally and increasing the air flow rate, the room will be sufficiently stirred and the indoor temperature distribution as shown by line c' will be formed, and the entire room will be cooled. Residents standing can enjoy cooling over their entire body. As is clear from the above explanation, the air conditioner of the present invention selects the wind direction and air flow amount depending on the living pattern, so it can cool only the parts of the room that are necessary for the resident's daily activities, resulting in an energy saving effect. This is something that can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a front view of an indoor unit showing an embodiment of the air conditioner of the present invention, FIG. 2 is a schematic cross-sectional view of the same,
FIG. 3 is a control block diagram of the same, FIG. 4 is a sectional view showing the blowing direction in the room, and FIG. 5 is a characteristic diagram of the indoor temperature distribution. 1...Indoor unit, 2...Heat exchanger, 3...
Blower, 4...Air outlet, 5...Step motor,
8...Life pattern selection switch, 9...Wind direction change control device, 10...Blower rotation speed control device.

Claims (1)

[Claims] 1 An indoor unit having a heat exchanger, a blower, etc., a wind direction changing device provided at an air outlet of the indoor unit, a rotation speed control device of the blower, and a wind direction changing control device of the wind direction changing device. This air conditioner is equipped with a resident's lifestyle pattern selection switch which controls the wind direction to be horizontal when the amount of air is being blown and to diagonally downward when the amount of air is being blown by inputting the resident's lifestyle pattern.