JPS6217559A - Air conditioner - Google Patents

Abstract

PURPOSE:To reduce the unevenness of the body-sensed temperature depending on the entrance of direct sunlight so as to realize a pleasant air conditioning by determining whether or not there is an exposure to the direct sunlight based on the output signal from a light intensity detecting means and by providing a means that controls the rate of change of the air blowing direction. CONSTITUTION:The output signal from the light intensity detecting means 7 is fed to the arithmetic amplifier of the air blowing direction changing rate control means 8, and, if the detected light intensity is determined to be greater than the specified value, a judgment is passed that there is direct sunlight. In the case of cooling, the changing rate of cold air blowing direction is made smaller than the normal value so that the operation of the movable shaft 14 in the blowing direction control means 4 is made slower in the direction shown by arrow to lengthen the total time period of blowing the cold air toward the area exposed to direct sunlight. In the case of heating, the changing rate of hot air blowing direction is made greater than normal. As a result, the movement of the movable shaft 14 of the blowing direction control means 4 becomes faster in the direction as shown by arrow to shorten the total blowing time of hot air to the area exposed to direct sunlight. In this manner, the difference in the body-sensed temperature can be reduced in the air conditioned space which is exposed to direct sunlight.

Description

[Detailed Description of the Invention] [Industrial Application] This invention relates to an air conditioner, and more specifically, to a change rate in the blowing direction of cold or warm air blown to an area where direct sunlight enters an air conditioned space. The present invention relates to an air conditioner that enables W4 wholesale.

[Conventional technology]

A method for controlling the blowing direction of cold air or warm air in a conventional air conditioner will be explained with reference to FIG.

In the figure, 1 is an indoor heat exchanger that constitutes the refrigerant cycle of the air conditioner, 2 is a fan for air circulation in the air conditioning space, 3 is a motor for driving the fan, and 4 is cold air that has passed through the heat exchanger 1. Alternatively, the blowing direction control means changes the blowing direction of the warm air, and 5 is a selection switch that changes the direction of the wind blowing field to 'R'.

In the air conditioner configured as described above, the motor 3 rotates the fan 2 to generate wind, and the wind is heat exchanged while passing through the heat exchanger Wi1, and becomes cold air or warm air. The air is blown out from the blowing direction control means 4 into the air conditioning space. Further, when the switch 5 is set to ONL, the blowing direction of the wind is changed by the blowing direction control means 4, and the wind is uniformly distributed throughout the air-conditioned space. Then, when the switch 5 is OFF, the direction of the blowing direction of the blowing direction control means 4 is not changed.

[Problem that the invention seeks to solve]

In conventional air conditioners such as those mentioned above, when direct sunlight enters the air-conditioned space, the perceived temperature of people in the area where the direct sunlight is incident rises. There was a problem that the temperature was too high and the amount of light was too high to provide comfortable air conditioning.

This invention was made in order to solve the conventional problems as described above, and it is an air conditioner that reduces the unevenness of perceived temperature in an air conditioned space due to the incidence of direct sunlight, and enables more comfortable air conditioning. The purpose is to provide equipment.

[Means for solving problems]

The air conditioner according to the present invention includes means for detecting the amount of light in the direction of cool air or warm air blowing, and based on the output signal from the light amount detecting means, it identifies whether direct sunlight is incident or not. This device is constructed by adding means for controlling the rate of change in the direction of wind blowing so that the unevenness of perceived temperature is reduced when cold or warm air is blown in a direction where direct sunlight is not incident.

[For production]

In this invention, by inputting the output signal from the light amount detection means to the blowing direction change rate control means, when blowing out cold air in the direction in which direct sunlight is incident during cooling,
Reduce the rate of change of the blow-out direction control means (C) When blowing for a longer time than usual and blow out cold air in a direction where direct sunlight is not incident, return the change rate of the blow-out direction control means to normal (C) Normally The ventilation time is 11!, and the direction of incidence of direct sunlight during heating is 11! When blowing out wind, increase the rate of change of the blowing direction control means to make the blowing time longer than usual, and when blowing warm air in a direction where direct sunlight is not incident, change the blowing blowing direction mixing means. The rate of change is returned to normal and the air blowing time is controlled to be normal, thereby suppressing the difference in perceived temperature in the air-conditioned space due to the incidence of direct sunlight, thereby enabling comfortable air conditioning.

〔Example〕

Embodiments of this invention will be described below with reference to FIGS. 1 to 4.
I will clarify.

FIG. 1 shows a system configuration diagram of an air conditioner according to the present invention. The same parts as in FIG. State the emphasis.

That is, in this embodiment, the light amount detection means 7 detects the amount of light in the direction in which cold air or warm air is blown into the air-conditioned space 6.
Based on the output signal from the light amount detection means 7, the presence or absence of direct sunlight entering the air-conditioned space 6 is determined, and cool air or A blow-off direction change rate control means 8 is newly added to control the blow-off direction change rate when blowing out warm air.

As shown in FIG. 2, the light amount detection means 7 is composed of a light-shielding tube 9, a lens 10 installed at one end thereof, and a phototransistor 11 attached to the other end, thereby detecting only the amount of light from one direction. It is structured so that it can be done. Further, the light amount detection means 7 thus constructed is set in one of the wind direction members 12 constituting the blowing direction control means 4 as shown in FIG.

As shown in FIG. 2, the blowing direction control means 4 includes a fixed shaft 13, a large number of wind direction members 12 rotatably attached at regular intervals in the longitudinal direction of the fixed shaft 13, and each of the wind direction members 1.
The blowing direction control means 4 is configured to be controlled by the blowing direction change rate control means 8 described above.

FIG. 3 shows a specific circuit diagram of a light quantity comparison calculation unit built into the blowing direction change rate control means 8. As shown in FIG. In the figure, the collector of the phototransistor 11 of the light amount detection means 7 is connected to the +v1 power supply via a resistor 15,
The emitter is grounded. Further, the collector of the phototransistor 11 is connected to the operational amplifier 1 via a resistor 16.
It is connected to the (-) input terminal of operational amplifier l#17.
) At the input end, there is a fixed resistor 18 and a variable resistor connected in series between the +v2 power supply and ground! ! A reference voltage (voltage corresponding to a specified amount of light) set by #19 is applied. 20 is a Zener diode connected to the output of operational amplifier M17.

Next, the operation of this embodiment configured as described above will be explained according to the flowchart shown in FIG.

When the air conditioner is in cooling or heating operation,
When the program for determining the wind blowing direction IIJa starts, first, in step 30, the light amount detection means 7
operates and detects the amount of light in the wind direction. This amount of light is converted into an electrical signal by the phototransistor 11 and input to the blowing direction change rate control means 8.

Next, the process proceeds to step 31, where it is determined whether the air conditioner is currently in cooling mode or heating mode. If the air conditioner is in cooling mode, the process proceeds to step 32, and if in heating mode, the process proceeds to step 33.

In step 32, the output signal from the light amount detection means 7 is applied to the operational amplifier 17 of the blowing direction change rate control means 8, thereby determining whether or not the detected light amount is greater than the specified light amount in seconds. The blowing direction control means 4 is controlled according to the value of (specified light amount) - (specified light amount).

That is, since the voltage applied to the resistor 16 changes according to the amount of light detected by the phototransistor 11 and the resistor W 15 , this voltage is converted into the operational term +11! In addition to #17, it is compared with a reference voltage set by resistors 18 and 19, and the difference voltage is amplified and applied to the Zener diode 20.

At this time, if the output voltage of the operational amplifier 17 is equal to or higher than the Zener voltage of the Zener diode 20, the Zener diode 20 becomes conductive and the Zener voltage is sent to its output side.

That is, if the amount of light detected in step 30 is greater than the specified amount of light, it is determined that direct sunlight is being incident, and the rate of change in the direction of blowing the cold air is made smaller than the normal value. As a result, the operation of the movable shaft 14 in the direction of the arrow in the blowing direction control means 4 is slowed down, and the total time for blowing cold air to the direct sunlight incident area is made longer than usual, so that the difference in perceived temperature in the sunlight incident area is reduced. And keep it empty to reduce temperature unevenness.
c harmonize.

If the amount of light detected in step 30 is less than the specified scene, it is determined that direct sunlight is not incident, and the rate of change in the direction of the cold air is set to the normal value, and the blow direction controller 152
The rate of change of the movable shaft 14 in the direction of the arrow No. 4 is returned to normal.

At this time, the output voltage of the operational term @917 is below the Zener voltage of the Zener diode 20, so its output becomes 0.

On the other hand, when the determination in step 31 is heating mode,
The process proceeds to step 33, but in step 33, if the scene detected in step 30 is greater than the specified amount of light, the blowing direction change rate control means 8 determines that direct sunlight is entering the area in the wind blowing direction. , (detected light amount)−(specified light amount), the rate of change in the blowing direction of warm air is made larger than the normal value. Therefore, the movable shaft 14 of the blowing direction control means 4 changes quickly in the direction of the arrow, thereby shortening the total blowing time of warm air to the direct sunlight incident area.

This is the sky with direct sunlight shining on it.

Reduce the difference in perceived temperature in the air-conditioned space area.

Further, if the light amount detected in step 30 becomes less than the specified light amount, the rate of change in the direction of warm air blowing is set to a normal value.

In step 34, the blowing direction control means 4 is controlled to change the blowing direction of the wind according to the rate of change in the blowing direction of the wind calculated in step 32 or step 33.

Further, in the next step 35, it is determined whether or not the air conditioner continues to operate, and if the operation continues,
Returning to step 30, step 9 repeats the operations from step 30 onwards.

In the above embodiment, a case has been described in which the direction of wind blowing is controlled by the blowing direction control means 4, but a method may be adopted in which the wind blowing direction of the blower is controlled.

〔Effect of the invention〕

As described above, according to the present invention, when direct sunlight is entering the air-conditioned space, the direction change rate of the blowing direction of blowing cold air or warm air in the direction where the direct sunlight is entering is changed from the normal rate. Since the system also changes the temperature, there is little difference in perceived temperature.
A more comfortable air-conditioned space can be created.

[Brief explanation of the drawing]

FIG. 1 is a system configuration diagram showing an example of an air conditioner according to the present invention, FIG. 2 is a plan view showing a specific example of the blowing direction control means and light amount detecting means according to the present invention, and FIG. 3 is a system configuration diagram showing an example of the air conditioner according to the present invention. A circuit diagram showing a specific example of a detection determination unit,
FIG. 4 is a flowchart showing the procedure of the Suita air flow regulation method according to the present invention, and FIG. 5 is a system configuration diagram of a conventional air conditioner. 1 ・M AC fl[, 2 ・Fan, 3 ・Fan motor, 4
・Blowout direction control means, 6 Air-conditioned space, 7... Light quantity detection means, 8... Blowout direction change rate control means. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent: Masuo Oiwa (2 others) Figure 1, Figure 21! f around Figure 6 +ν

Claims (1)

[Claims] In an air conditioner equipped with a fan and a fan motor that circulate air in an air conditioning space through a heat exchanger, and a means for controlling the direction of wind blowing into the air conditioning space, means for detecting the amount of light in the direction of cool air or warm air blowing. Based on the output level from this light amount detection means, it is possible to identify the presence or absence of direct sunlight, and to sense when cool or warm air is blown in the direction where direct sunlight is incident and in the direction where direct sunlight is not incident. An air conditioner comprising means for controlling the rate of change in the direction of wind blowing so as to reduce temperature unevenness.