JPS6016258A - Air conditioner - Google Patents

Abstract

PURPOSE:To reduce periodic variations in body temperature and perform pleasant air conditioning, by varying the speed of a room fan simultaneously when periodically varying the blow-off direction. CONSTITUTION:A switch 9 is opened and closed by a timer or the like which is periodically turned ON and OFF, whereby relayes 10, 11 are operated. Namely, when the switch 9 is closed and an electric current is passed to the relay 10, a switch 12 is connected to a reverse rotation tap 13 of a stepping motor 7, and when an electric current is simultaneously passed to the relay 11, a switch 16 is connected to a large air quantity tap 17 of a fan motor 15. As a result, conditioning air is blown off with a large air quantity in a horizontal direction in the room. Similarly, when the switch 9 is opened so that no electric current is passed to the relays 10, 11, the switch 12 is connected to a forward rotation tap 14 of the motor 7, and the switch 16 is connected to a small air quantity tap 18 of the fan motor 15. As a result, conditioning air is blown off with a small air quantity in a downward direction in the room.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a blowing device for an air conditioner, and an object of the present invention is to provide a comfortable air-conditioned space.

Conventional air conditioners use a method to periodically change the direction of air flow by swinging the looper of the air outlet, etc., in order to eliminate the deterioration of indoor temperature distribution and the feeling of airflow concentrated in a certain part of the room during cooling. There are many things that take . However, this method has the disadvantage that since the amount of air blown out is constant, a cold or unpleasant feeling of air flow is generated each time the direction of air blown is directed toward the occupant.

The present invention solves the drawbacks of the prior art described in item 1 by changing the speed of the indoor fan depending on the blowing direction of the blown air. Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.

Reference numeral 1 denotes a wall-mounted air conditioner main body, which has a heat exchanger 2, an indoor fan 3, etc. inside. Blowout 1] 4 has looper 6
is provided and connected to the step motor via the shaft 6, so by rotating or reversing the step knob motor 7 by a certain amount, the looper 6 moves to the horizontal position (solid line) as shown in Figure 2. ) to the inclined position (indicated by a dotted line). Therefore, as shown in Figure 3, the conditioned air blown out is directed horizontally in the room 8 (as shown by the solid line).
It moves periodically from the force to the downward direction (indicated by the dotted line).

. To explain the relationship between the indoor fan 3 and the position of the looper 5 with reference to FIG. 4, the relays 10 and 11 are activated by opening and closing the switch 9 using a timer (not shown) that periodically turns ON and OFF. Activate. That is, when switch 9 closes and current flows through relay 10, switch 12 connects to reversing tap 13 (counterclockwise in Figure 2) of the step motor, and at the same time when current flows through relay 11, switch 16 connects to the fan. Connect to the strong air volume tap 17 of the motor 15. Therefore, in FIG. 3, the conditioned air is blown out horizontally in the room 8 at a strong volume. Similarly, when the switch 9 is opened and no current flows through the relays 10 and 11, the switch 12 connects the step motor 7 to the forward rotation (clockwise in FIG. Connect to. Therefore, the conditioned air is blown out in the downward direction in the room 8 at a low volume.

To explain the effects of the present invention, the relationship between the sensible temperature actually felt by the human body in a room during cooling and the wind speed around the human body is expressed as shown in FIG. 5 using the temperature around the human body as a parameter. That is, it is now assumed that conditioned air is blown out horizontally in the room 8 and the occupant is comfortable at point A. From this state, by periodically rotating the louver 6, the conditioned air starts to blow out downward, and the 6rJn degrees around the human body moves from all to line b, and the overall sensible temperature decreases. However, if the air volume does not change at this time, in addition to the decrease in the temperature around the human body, the cooling force due to the increase in the wind speed around the human body will act, and the sensible temperature will move to point B, resulting in a periodic change in the sensible temperature of T1. This will result in a change in the amount. According to the present invention, when the conditioned air is blown out in a downward direction, the air volume is reduced, so the wind speed around the human body is the same as the value at point A, or is actually smaller. Therefore, the sensible temperature at this time is approximately from point 0 to point C'. This periodic fluctuation of the sensible temperature can be kept below T2.

As is clear from the above description, the air conditioner of the present invention changes the indoor fan speed at the same time as it periodically changes the blowing direction, so it can reduce periodic fluctuations in sensible temperature and maintain comfort. This provides the effect of air conditioning.

[Brief explanation of the drawing]

Fig. 1 is a front view showing one embodiment of the air conditioner of the present invention, Fig. 2 is a sectional view of the same, Fig. 3 is an explanatory diagram showing the direction of indoor airflow, and Fig. 4 is a front view of the air conditioner according to the present invention. A schematic control circuit diagram, FIG. 6, is a diagram showing the relationship between sensible temperature and wind speed around the human body, showing the effects of the present invention. 1... Air conditioner body, 3... Indoor fan, 4... Air outlet, 5... Louver. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 2. q% method 2

Claims (2)

[Claims] (1) An air conditioner comprising an air outlet that periodically changes the air outlet direction and a control circuit that changes the indoor fan speed according to the air outlet direction. (2) The air conditioner according to claim 1, wherein the control circuit is provided with a switch that increases the speed of the indoor fan when blowing air in a horizontal direction and slows the speed of the indoor fan when blowing air in a downward direction.