JPS62218758A - Control unit of air conditioner - Google Patents

Abstract

PURPOSE:To provide a comfortable space cooling (heating) feeling by causing a cool (warm) air flow to be blown off through lower side and upper side blow- off ports when a rapid space cooling (heating) feeling is necessary at the time of space cooling (heating), and causing the cool (warm) air flow to be blown off only through an upper (lower) blow-off port when the room has been cooled (heated) to a certain degree. CONSTITUTION:When a space cooling operation is started or a rapid cool air flow feeling is required, a downward blow-off damper 9 is opened, and a fan motor 11 is turned ON, thus a cool air flow being blown off from a lower side and a space cooling feeling being obtained rapidly. In a case where the interior of the room is cooled to a certain degree, an upward blow-off damper 5 is opened, an upward blow-off fan motor 7 is turned ON, and a hot air flow is blown off from an upper side and a space heating feeling is obtained rapidly. Further, when the interior of the room is warmed to a certain degree, the downward blow-off damper 9 is opened and the downward blow-off fan motor 11 is turned ON, thus a hot air flow being blown off only through a downward blow-off port 8.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a control device for, for example, a floor-mounted inverter-type air conditioner.

2. Description of the Related Art In a conventional floor-standing inverter air conditioner, as shown in Fig. 5, when the indoor air conditioner 1 operates, the air flows through the suction port 2 and the heat exchanger 3 to the top. Air was blown out from the upper outlet 4 and lower outlet 8 of the indoor interior 1 of the air conditioner by the fan motor 7 and the lower outlet fan motor 11, respectively. Alternatively, as shown in FIG. 6, when the indoor part 1 of the air conditioner is operating, the air flow is directed to the top of the indoor part 1 of the air conditioner by the top blowing fan motor 7 through the suction port 2 and the heat exchanger 3. The air was blown out from an outlet 4.

Problems to be Solved by the Invention In the conventional configuration, during cooling operation, in the case of the configuration shown in FIG. This is effective because it provides a rapid cooling sensation at the start or when you want to rapidly cool the air conditioner, but in a room that has cooled to a certain extent, the mild cooling sensation due to the shower effect cannot be obtained. Also, in the case of the configuration shown in Figure @6, cold air is only blown toward the top of the air conditioner.

Although a shower effect can be expected, it is impossible to blow cold air upward and downward at the same time, which requires rapid cooling.

Furthermore, during heating operation, in the case of the configuration shown in Fig. 5, hot air is always blown out from the upper air outlet 4 and the lower air outlet 8, which is effective when heating is started or when heating is desired to be performed rapidly. However, in a room that is warm to some extent, the so-called cold head and feet effect cannot be obtained due to the feeling of cold air coming from the upper air outlet 4.

In addition, in the case of the file shown in Fig. 6, it is impossible to blow warm air upward and downward at the same time, which requires rapid heating, and in a somewhat warm room, the effect of cooling the head and heating the feet due to the feeling of cold air from the upper air outlet 4 cannot be obtained. do not have. It had various problems as mentioned above.

Means for Solving the Problems In order to solve the above problems, the present invention provides indoor and outdoor temperature detection means for detecting indoor and outdoor temperatures, as shown in FIG.
temperature setting means that can arbitrarily set the temperature; indoor and outdoor temperature determining means that compares and determines the set temperature and indoor and outdoor temperatures; and operating frequency determining means that determines the operating frequency of the compressor based on a signal from the indoor and outdoor temperature determining section. , a frequency determining means for comparing and determining the operating frequency determined by the operating frequency determining means and a preset setting frequency;

cooling/heating setting means for setting whether the air conditioner is operating in cooling mode or heating mode; cooling/heating operation determining means for determining by the indoor/outdoor temperature determining means and the cooling/heating setting means; a damper and blow-out fan motor operation upper/lower classification judgment means in which upper and lower operations are classified by the cooling/heating operation judgment means; and a frequency judgment means and damper blow-out fan motor operation upper/lower classification judgment. Means 1: When the operating frequency becomes higher than the set frequency according to a signal from the frequency determining means, the damper that opens and closes the bottom blowing air circuit is opened during cooling, and the damper that opens and closes the top blowing air circuit is opened during heating. The apparatus is further provided with a damper control means for controlling a lower blower and a blower fan motor control means for turning on a lower blower fan motor or a lower blower fan motor during cooling or heating, respectively.

Function: With the above configuration, the present invention controls the damper that opens and closes the upper or lower blowing air circuit and the upper or lower blowing fan motor depending on the operating frequency, so a rapid feeling of cooling is required during cooling. In this case, the operating frequency of the compressor is increased so that a large amount of cold air is blown out from both the upper and lower sides of the air conditioner, giving a rapid feeling of cooling. By lowering the operating frequency of the compressor, cold air is blown only from the top of the air conditioner.

Provides a cold shower effect. In addition, if a rapid feeling of heating is required during heating, the operating frequency of the compressor is increased and a large amount of warm air is blown out from both the upper and lower sides of the air relaxation system.
If a rapid feeling of heating is obtained, or if the compressor is operated continuously in a room that has been heated to a certain degree, the operating frequency of the compressor is lowered so that warm air is blown only from the bottom of the air conditioner, and there is no feeling of cold air. Provides a cooling effect on the head and feet.

Embodiment FIG. 2 is a cross-sectional view showing the configuration of an embodiment of damper control and blow-off fan motor control of an air conditioner according to the present invention, FIG. 3 is a circuit diagram of the same, and FIG. 4 is a flowchart showing the same operation. It is.

First, the configuration of the present invention will be explained using FIG. 2. In the figure, an air conditioner room interior 1 includes an inlet 2, a heat exchanger 3, an upper outlet 4, and a lower outlet 8, which constitute a wind circuit. The wind circuit passing through the upper outlet 4 includes an upper exhaust damper 5, an upper exhaust damper motor 6 that drives the upper exhaust damper 5, and an upper exhaust fan motor 7. The wind circuit passing through the lower outlet 8 includes a lower exhaust damper 9, a lower exhaust damper motor 10 that drives the lower exhaust damper 9, and a lower exhaust fan motor 11.

When starting cooling operation or when a rapid feeling of cold air is required, the lower blowing damper 9 opens and the lower blowing fan motor 11 opens.
is turned on, cold air is blown out from the lower side of the air conditioner room interior 1, and a rapid feeling of cooling can be obtained. When the room is cold to some extent, the lower blowing damper 9 is closed and the lower blowing fan motor 11 is also turned FF, however, the upper blowing damper 5 is open and the upper blowing fan motor 7 is ON. Since the cold air is blown out only from the upper outlet 4, a mild cooling feeling due to the shower effect can be obtained.

On the other hand, when heating operation starts or when a rapid feeling of warm air is required, the top blowing damper 5 opens and the top blowing fan motor 7 is turned on to blow hot air from the upper side of the air conditioner room interior 1. is blown out, giving a rapid heating sensation. In addition, when the room is warmed to a certain extent, the upper blowing damper 5 is closed and the upper blowing fan motor 7 is also set to FF, but the lower blowing damper 9 is open and the lower blowing 7 unmotor 11 is ON. Since warm air is blown out only from the lower air outlet 8, a cold head and foot warming effect without the feeling of cold air can be obtained.

Next, the operation of the present invention will be explained using FIGS. 3 and 4.

When the operation switch is turned ON in the first step, in the second step, the cooling/heating setting means and the indoor/outdoor temperature determining means determine whether the air conditioner is in cooling mode or heating mode. When the operation is completed, heating operation is started. In the third step, the indoor temperature detection circuit 12 detects the indoor temperature, and the signal from the indoor temperature detection circuit 12 is input to the microcomputer (hereinafter referred to as LSI) 13, and in the fourth step, it is compared with the set temperature inside the LS 113. It will be judged. Here, the indoor temperature detection circuit 12 corresponds to the indoor/outdoor temperature detection means in FIG. 1, and the LS 113 corresponds to the indoor/outdoor temperature determination means in FIG. If the indoor temperature during cooling (set temperature, indoor temperature during heating) is the set temperature, the compressor will stop, and if the indoor temperature during cooling is set temperature, the indoor temperature during heating is set temperature, the temperature difference will be determined in the fifth step. An appropriate operating frequency is determined by the frequency determining device 14. Here, the frequency determining device 14 corresponds to the operating frequency determining means shown in FIG.

Next, in a sixth step, the operating frequency and an arbitrary set frequency are compared within the LS 113 using a signal from the frequency determining device 14.

If the operating frequency is greater than the set frequency, it is determined that rapid cooling or rapid heating is necessary, and the lower blowing damper 9 or the upper blowing damper 5 is opened, and the lower blowing fan motor 11 or the upper blowing is opened. When the ON signal of the fan motor for 1
8 and 7 unmotor relay 171 for lower blowing, or relay 16 for damper for upper blowing, and relay 15 for upper blowing fan motor.

The LS 113 in the above operation corresponds to the frequency determination means, damper control means, and blowing fan motor control means shown in FIG.

During cooling, the lower blowing damper motor 10 and the lower blowing fan motor 11 are turned on by a signal from the LS 113 to the relay 18.17, the lower blowing damper is opened, and cold air is blown out from the lower blowing air circuit.

On the other hand, during heating, the top blowing damper motor 6 and the top blowing fan motor 7 are turned ON by the signal from the LS 113 to the relays 16 and 15, the top blowing damper is opened, and hot air is blown out from the top blowing air circuit. Ru.

In the sixth step, if the operating frequency is the set frequency, it is determined that the indoor temperature is cool to some extent during cooling or warm during heating, and when cooling, the 16th boat of LS113 (
P16), the signals for closing the lower blowing damper and turning off the lower blowing fan motor are output from the 15th port (PI3) to the lower blowing damper relay 18 and the lower blowing fan motor relay 17, and the lower blowing fan motor is turned off. When the damper closes, the bottom blowing fan motor stops, while during heating, the top blowing damper relay 16 and the top blowing fan motor relay from the 14th boat (P14) and the 13th boat (P13) At 15, the top blowing damper is closed, and the top blowing fan motor OF
The F signal is output and the top blowout damper closes.

The top blower fan motor stops.

Effects of the Invention As described in the detailed explanation above, the present invention provides an advantage that when the air conditioner is in operation, when the air conditioning load is high, that is, when the indoor temperature is high during cooling operation, or when the indoor temperature is low during heating operation, A characteristic of inverter air conditioners is that the operating frequency of the compressor increases and when the air conditioning load is low, that is, when the indoor temperature is low during cooling operation or when the indoor temperature is high during heating operation, the compressor operating frequency decreases. By taking advantage of this, the wind circuit is controlled according to the level of air conditioning load.

That is, when a rapid cooling sensation is required during cooling, cold air is blown out from the lower GD1 outlet and the upper GD1 outlet inside the air conditioner, so that a rapid cooling sensation can be obtained.

Furthermore, when the indoor temperature has cooled down to a certain extent, cold air is blown out only from the upper blow-off port, thereby eliminating the unpleasant rapid cooling sensation, and providing a comfortable cooling sensation due to the shower effect of the cold air from the upper side.

On the other hand, during heating, when a rapid feeling of heating is required, warm air is blown out from the lower and upper air outlets inside the air conditioner, providing a rapid feeling of heating, and even when the indoor temperature has warmed up to a certain degree. Because warm air is blown out only from the lower outlet, it does not make the human body feel an unpleasant feeling of cold air, and it can also be expected to have a cooling effect on the head and feet.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the operation control device of the present invention as a function realizing means, FIG. 2 is a sectional view showing the configuration of an air conditioner showing an embodiment of the present invention, and FIG. 3 is a block diagram of the same air conditioner. Fig. 4 is a control circuit diagram of the same control circuit, Fig. 5 is a 70-chart diagram of the same control circuit.
6 are sectional views showing the configuration of a conventional air conditioner. 12... Indoor temperature detection circuit (indoor temperature detection means)
, 13... LSI, 14... Frequency determining device (operating frequency determining means). Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 2 Deπ // Figure 3 Figure 4

Claims (1)

[Claims] An indoor temperature detecting means for detecting the indoor temperature, a temperature setting means that can be set arbitrarily, an indoor temperature determining means for comparing and determining the indoor temperature and a set temperature, and a compressor operating frequency based on a signal from the indoor temperature determining means. an operating frequency determining means for determining the operating frequency, a frequency determining means for comparing and determining the operating frequency determined by the operating frequency determining means and a preset set frequency, and a signal from the frequency determining means to determine whether the operating frequency is lower than the set frequency. When the temperature increases, the damper control means for lower airflow that opens the damper that opens and closes the air circuit for lower airflow during cooling operation, and the fan motor for lower airflow are turned on.
a bottom blowing fan motor control means to open and close a top blowing wind circuit during heating operation, a top blowing damper control means to open a damper that opens and closes a top blowing wind circuit, and a top blowing fan motor control means to turn on a top blowing fan motor. Air conditioner control device.