KR100248776B1 - Operation control method of aircon - Google Patents

Abstract

The present invention relates to an operation control method of an air conditioner, comprising: determining whether it is day or night during a cooling operation, initializing a time count value during daytime, and continuously performing a cooling operation, and a reservation related function at night. If the reservation related function is set and the reservation related function is set, it initializes the time count value and continues cooling operation.If the reservation related function is not set, it starts counting the time and simultaneously controls the air conditioner. Determining whether there is an external input and initializing the count value if there is an external input, and operating the air conditioner according to the external input. If there is no external input, determining whether the time count value has exceeded a predetermined time and cooling operation is performed. Continuing to perform, and the time count value exceeds a predetermined time In this case, the cooling operation is stopped and the time count value is initialized. When the cooling operation is performed at night, if there is no external input for more than a predetermined time, the air conditioner is forcibly shut down, resulting in excessive decrease of indoor temperature and unnecessary operation. There is an effect that can prevent the waste of energy.

Description

Operation control method of air conditioner {OPERATION CONTROL METHOD OF AIRCON}

The present invention relates to an operation control method of an air conditioner, and more particularly, to an operation control method of an air conditioner for forcibly stopping the air conditioner when there is no external input for a predetermined time when performing a cooling operation at night. will be.

In general, an air conditioner includes a cooling device for cooling indoor hot air and supplying it to the room, and a heating device for supplying indoor cooling air to the room.

In addition, there is also a cooling and heating device that combines the cooling function and the heating function, a situation that includes a clean function to clean the contaminated indoor air.

FIG. 1 shows an indoor unit (hereinafter, referred to as an indoor unit) of an air conditioner (commonly referred to as an "air conditioner") that functions as an air conditioner among the aforementioned air conditioners, and the air conditioner is an outdoor unit not shown. Of course, it includes (hereinafter referred to as an outdoor unit).

The indoor unit 10 of the conventional air conditioner illustrated in FIG. 1 includes a suction port 11 formed at an upper portion of the front surface to suck indoor air, and a foreign material floating in the indoor air sucked through the suction port 11. The air filter 12 mounted on the rear side of the intake port 11, the discharge port 13 formed in the lower front side so that the sucked air is discharged back to the room, and the air discharged through the discharge port 13 in the vertical and horizontal directions And a wind direction control vane 14 mounted to the discharge port 13 to control the wind direction, and a duct 15 mounted therein to guide the flow of indoor air discharged to the discharge port 13 through the suction port 11. And an indoor heat exchanger (16) mounted at the rear side of the inlet port (11) to heat-exchange the air sucked through the inlet port (11), and at the same time inhaling the indoor air through the inlet port (11). Heat exchanged by 16 Group consists of the indoor fan motor 18 is mounted to the rear lower portion of the indoor heat exchanger (16) to discharge into the room through the discharge port 13.

When the separate air conditioner having the indoor unit configured as described above is to be used for both heating and cooling, the four-way valve 22 is turned on during heating, and the refrigerant 21 is a four-way valve as shown by the dotted line in FIG. 2. (22) → indoor heat exchanger (16) → expansion valve (23) → heating expansion valve (24) → outdoor heat exchanger (25) → four-way valve (22) → compressor (21).

On the other hand, during cooling, the four-way valve 22 is turned off, so that the refrigerant is shown by the solid line of FIG. 2, and the compressor 21 → four-way valve 22 → outdoor heat exchanger 25 → one-way valve 26 → expansion. The valve 23 → the indoor heat exchanger 16 → the four-way valve 22 → the compressor 21 is circulated.

In the air conditioner for both cooling and heating having the refrigerant cycle as described above, when the user selects a desired operation mode (for example, cooling) by operating a remote controller or an operation unit, and turns on the operation key, the indoor fan motor 18 is driven. As the indoor fan rotates, the indoor air is sucked into the main body through the suction port 11.

When the set temperature is lower than the room temperature by comparing the temperature of the indoor air sucked through the suction port 11 and the set temperature, the operating frequency of the compressor is determined according to the difference between the set temperature and the room temperature to drive the compressor.

When the compressor is driven, as the refrigerant is shown by the solid line in Fig. 2, the compressor 21 → the four-way valve 22 → the outdoor heat exchanger 25 → the one-way valve 26 → the expansion valve 23 → the indoor heat exchange. Air (16) → four-way valve (22) → compressor (21) is circulated in order to begin to cool the indoor heat exchanger (16).

Therefore, the air sucked into the main body through the inlet 11 is heat-exchanged with cold air by latent heat of evaporation of the refrigerant flowing in the indoor heat exchanger 16 while passing through the indoor heat exchanger 16, and the heat exchanger in the indoor heat exchanger 16. The cold air is guided to the upper portion and discharged into the room through the discharge port 13, and the cold air discharged through the discharge hole 13 is controlled to cool the room up and down or left and right according to the angle of the wind direction control vane 14. Perform.

On the other hand, when the set temperature is higher than the room temperature, only the heating cycle is operated.

That is, as shown by the dotted line in Fig. 2, the compressor 21 → the four-way valve 22 → the indoor heat exchanger 16 → the expansion valve 23 → the heating expansion valve 24 → the outdoor heat exchanger 25 → The four-way valve 22 → compressor 21 is circulated in order to start the indoor heat exchanger 16 is heated.

In the conventional air conditioner as described above, the indoor temperature detecting means (not shown) detects the indoor temperature, determines the operating frequency of the compressor according to the indoor temperature and the set temperature set by the user, and drives the compressor according to the determined operating frequency. In order to operate an air conditioner, there is a problem that driving noise of the compressor is annoying to the user.

In particular, at night, the driving noise of the indoor unit felt somewhat noisy, so at night, the driving noise of the compressor was fixed at the smallest operating frequency.

That is, as shown in FIG. 3, the distribution voltage values of the resistor R1 and the illuminance sensor cds are obtained from the microcomputer 30 of the indoor unit by using the illuminance sensor cds whose resistance value changes according to the irradiation amount of light. After reading the night and day, and after night, the operation frequency of the compressor was lowered or the rotation speed of the fan was lowered to perform the silent operation.

However, the operation control method of the conventional air conditioner as described above, the room temperature is too low due to long time cooling operation when going to sleep without a reservation for the end time in the state of performing the cooling operation at night, There was a problem that has a harmful effect on the human body.

Accordingly, the present invention is to solve the above-mentioned problems of the prior art, when performing the cooling operation at night, if there is no external input for more than a predetermined time by forcibly stopping the air conditioner operation, excessive drop of room temperature and unnecessary operation It is an object of the present invention to provide an operation control method of an air conditioner that can prevent energy waste due to.

In the air conditioner operation control method according to the present invention for achieving this object, in the air conditioner operation control method for performing air conditioning by operating the air conditioner according to the operating conditions set by the user,

During the cooling operation, it is determined whether it is day or night, and if it is day, it initializes the time count value and continues cooling operation. If it is night, it is determined whether the reservation related function is set. Initialize the count value and continue cooling operation.If the reservation related function is not set, count the time, and at the same time, it is determined whether there is an external input for controlling the air conditioner, and if there is an external input, the count value is initialized. And operating the air conditioner according to the external input, if there is no external input, determining whether the time count value has exceeded a predetermined time, and if not exceeding, continuing the cooling operation and continuing the cooling operation. If exceeded, cooling operation is stopped and time count value is initialized. And that made of a method comprising the features.

In addition, the operation control method of the other air conditioner of the present invention for achieving the above object, in the air conditioner operation control method for performing the air conditioning by operating the air conditioner in accordance with the operating conditions set by the user ,

During the cooling operation, it is determined whether it is day or night, and during the day, the time count value is initialized and the cooling operation is continued, and at night, whether the reservation related function is set or not, the reservation related function is set. If it is determined that the reservation time exceeds a predetermined time, and if the predetermined time is not exceeded, initializing the time count value and continuing cooling operation, the reservation related function is not set or the reservation time exceeds the predetermined time. When the controller starts to count the time, and at the same time determines whether there is an external input for controlling the air conditioner, and initializes the count value if there is an external input, and operates the air conditioner according to the external input. If it does not exceed the predetermined time, Once you have the steps and, the time count value to continue to perform the operation exceeds a predetermined time to stop the cooling operation, characterized by comprising the step of initializing the time count value.

1 is a cross-sectional view of an indoor unit of a conventional air conditioner,

2 is a heating and cooling cycle of a conventional air conditioner,

3 is a circuit diagram for detecting day and night in a conventional air conditioner,

4 is a schematic block diagram of an air conditioner operation control apparatus for performing the air conditioner operation control method according to the present invention;

5 is a flow chart of the air conditioner operation control method according to an embodiment of the present invention,

6 is a flowchart of a method for controlling an air conditioner according to a second embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: power supply means 101: driving operation means

104: control means 106: room temperature detection means

108: indoor heat exchanger temperature sensing means 110: outdoor temperature sensing means

112: illuminance detection means 120: wind direction control means

122: compressor driving means 124: outdoor fan motor driving means

126: indoor fan motor driving means 128: four-way valve driving means

130: display means

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is a block diagram of an operation control apparatus of an air conditioner for performing the operation control method of the air conditioner according to the present invention, wherein the operation control apparatus of the air conditioner includes a power supply means 100 and an operation operation means 101. ), Control means 104, indoor temperature sensing means 106, indoor heat exchanger temperature sensing means 108, outdoor temperature sensing means 110, illuminance sensing means 112, wind direction control means 120, compressor drive And a means 122, an outdoor fan motor driving means 124, an indoor fan motor driving means 126, a four-way valve driving means 128, and a display means 130.

The power supply means 100 converts a commercial AC voltage supplied from an AC power supply terminal (not shown) into a predetermined DC voltage required for the operation of the air conditioner, and outputs the converted AC voltage. By inputting the operation mode (automatic, cooling, dehumidification, blowing, heating) and start / stop of operation, set temperature, set air volume of the discharged air and set wind direction, the operation operation means 101 is a control panel of the indoor unit main body. And a remote controller signal receiver 103 for receiving an infrared signal transmitted from the remote controller in accordance with a key operation of a remote controller not shown.

In addition, the control unit 104 receives the DC voltage output from the power supply unit 100 to initialize the air conditioner, as well as the operation selection signal and the operation start / stop operation input by the operation operation unit 101. It is a microcomputer that controls the overall operation of the air conditioner according to the signal.

In addition, the indoor temperature detecting means 106 detects the temperature of the indoor air sucked through the inlet to control the indoor temperature to the temperature set by the user by the driving operation means 101 to perform the operation of the air conditioner. It is to be input to the control means 104, the indoor heat exchanger temperature detecting means 108 detects the pipe temperature of the indoor heat exchanger that is changed at the time of operation of the air conditioner, that is, the refrigerant temperature passing through the indoor heat exchanger In addition, the outdoor temperature detecting means 110 detects the temperature of the outdoor air converted during the operation of the air conditioner and inputs it to the control means 104.

In addition, the illuminance detecting unit 112 includes an illuminance sensor and detects a change in the illuminance of the outdoor unit and inputs it to the control unit 104.

In addition, the wind direction adjusting means 120 adjusts the angle of the wind direction adjusting blade 132 by the control of the control means 104 to adjust the direction of the discharge air up and down and left and right, and the compressor driving means 122 The control unit 104 receives the control signal output from the control unit 104 and drives the compressor 134.

The outdoor fan motor driving means 124 is controlled from the control means 104 according to the difference between the temperature set by the user by the driving operation means 101 and the indoor temperature detected by the indoor temperature detecting means 106. The outdoor fan motor 136 is controlled to drive the air heat exchanged by the outdoor heat exchanger to the outside in response to the output control signal.

The indoor fan motor driving means 126 receives a control signal output from the control means 104 to blow air (cold air, warm air) heat-exchanged to the room according to the air volume selected by the driving operation means 101. The rotation speed of the indoor fan motor 138 is controlled and driven.

In addition, the four-way valve driving means 128 receives a control signal output from the control means 104 to convert the flow of the refrigerant in accordance with the operating conditions (cooling or heating) input by the operation operation means 101. Receiving the four-way valve 140 on / off driving control, the display means 130 in accordance with the control of the control means 104 the operation selection mode (automatic, cooling, Dehumidification, ventilation, heating) and set temperature and room temperature are displayed.

The operation and effect of the operation control method of the air conditioner according to the present invention performed by the operation control apparatus of the air conditioner configured as described above are as follows.

FIG. 5 is a flowchart illustrating an operation control method of an air conditioner according to an embodiment of the present invention, in which S denotes a step.

First, when power is applied to the air conditioner, the power supply means 100 converts a commercial AC voltage supplied from an AC power supply terminal (not shown) into predetermined DC voltages required to drive the air conditioner, thereby driving each circuit and control means 104. )

When the DC voltage output from the power supply means 100 is applied as described above, the control means 104 initializes the air conditioner when the control means 104 is applied.

Then, the user operates the operation operation means 101 to input the operation start signal to the control means 104, and then inputs the operation mode selection signal for setting the operation condition of the air conditioner to the control means 104. (S2, S3)

That is, the user operates the driving operation means 101 to input the operation start signal to the control means 104, and the control means 104 determines whether the operation start signal is input from the operation operation means 101, If no operation start signal is input, the air conditioner is kept in operation standby state.

Then, the user inputs an operation selection signal to the control means 104 to set the operation condition by operating the operation operation means 101 to set the operation condition of the air conditioner.

Subsequently, if it is determined that the operation condition input from the operation operation means 101 is the cooling operation, and not the cooling operation, the control means 104 performs the operation of the air conditioner according to the set operation condition, In this case, cool the air conditioner (S4, S5, S6).

As the heating operation is selected as described above, the control means 104 receives the output of the illuminance detecting means 112 installed outdoors to determine whether it is day or night and is provided in the control means 104 during the day. Initializes the timer's time count and continues cooling operation (S7, S13).

Subsequently, as a result of the determination in step S7, it is determined whether the reservation related function is set at night, and if the reservation related function is set, the control means 104 initializes the time count value of the timer provided in the control means 104. Continue cooling operation (S8, S13).

If the reservation related function is not set, the timer provided in the control means 104 starts to count time, and at the same time, an external input for controlling the air conditioner from the operation operation means 101 is provided. If there is an external input, it initializes the count value of the timer provided in the control means 104, and operates the air conditioner according to the external input (S9, S10, S13).

If there is no external input, it is determined whether the timer's time count exceeds a predetermined time (for example, 4 hours). If not, the cooling operation is continued. If the timer's time count exceeds the predetermined time, If so, the cooling operation is stopped and the time count value of the timer is initialized. (S11, S12, S13)

FIG. 6 is a flowchart illustrating an operation control method of an air conditioner according to an embodiment of the present invention, in which S denotes a step.

First, when power is applied to the air conditioner, the power supply means 100 converts a commercial AC voltage supplied from an AC power supply terminal (not shown) into predetermined DC voltages required to drive the air conditioner, thereby driving each circuit and control means 104. )

When the DC voltage output from the power supply means 100 is applied as described above, the control means 104 initializes the air conditioner when the control means 104 is applied.

Then, the user operates the operation operation means 101 to input the operation start signal to the control means 104, and then inputs the operation mode selection signal for setting the operation condition of the air conditioner to the control means 104. (S22, S23)

That is, the user operates the driving operation means 101 to input the operation start signal to the control means 104, and the control means 104 determines whether the operation start signal is input from the operation operation means 101, If no operation start signal is input, the air conditioner is kept in operation standby state.

Then, the user inputs an operation selection signal to the control means 104 to set the operation condition by operating the operation operation means 101 to set the operation condition of the air conditioner.

Subsequently, if it is determined that the operation condition input from the operation operation means 101 is the cooling operation, and not the cooling operation, the control means 104 performs the operation of the air conditioner according to the set operation condition, In this case, the air conditioner is cooled down (S24, S25, S26).

As the heating operation is selected as described above, the control means 104 receives the output of the illuminance detecting means 112 installed outdoors to determine whether it is day or night and is provided in the control means 104 during the day. Initialize the timer's time count and continue cooling operation (S27, S34).

Subsequently, as a result of the determination in step S7, it is determined whether the reservation related function is set at night, and if the reservation related function is set, the control means 104 determines that the reservation time is longer than a predetermined time (for example, 4 hours). If the reservation time is less than the predetermined time (e.g., 4 hours) by determining the authorization, the time count value of the timer is initialized and cooling operation is continued. (S28, S29, S34)

If the reservation related function is not set or the reservation time is longer than a predetermined time (for example, four hours), the timer provided in the control means 104 is operated to start counting the time, and at the same time, the operation operation means 101. It is determined whether the external input for controlling the air conditioner is input to the control means 104, and if there is an external input, initializes the count value of the timer provided in the control means 104 and operates the air conditioner according to the external input. (S30, S31, S33)

If there is no external input, it is determined whether the timer's time count exceeds a predetermined time (for example, 4 hours). If not, the cooling operation is continued. If the timer's time count exceeds the predetermined time, If so, the cooling operation is stopped and the time count value of the timer is initialized. (S32, S33, S34)

As described above, according to the present invention, when the cooling operation is performed at night, if there is no external input for more than a predetermined time, the air conditioner is forcibly stopped, thereby preventing energy waste due to excessive decrease of indoor temperature and unnecessary operation. It has an effect.

Claims (2)

(Correction) During the cooling operation, it is determined whether it is day or night, and if it is day, it initializes the time count value and continues the cooling operation, the count step of counting time at night, and the time count value is a predetermined time. Operation of the air conditioner comprising the step of continuously performing the cooling operation if it is not exceeded, and if the time count value exceeds the predetermined time, the operation stop step of stopping the cooling operation and initializing the time count value. In the control method, In the counting step, determining whether the reservation related function is set, if the reservation related function is set, initializing the time count value and continuing cooling operation; If the reservation related function is not set, it starts counting time, and at the same time, determines whether there is an external input for controlling the air conditioner, and if there is an external input, initializes the count value and operates the air conditioner according to the external input. Operation control method of the air conditioner, characterized in that made. (Correction) During the cooling operation, it is determined whether it is day or night, and if it is day, it initializes the time count value and continues the cooling operation, the count step of counting time at night, and the time count value is a predetermined time. The air conditioner consists of an operation continuation step of continuously performing the cooling operation if it is not exceeded by determining whether it is exceeded, and an operation stop step of stopping the cooling operation and initializing the time count value if the time count value exceeds a predetermined time. In the operation control method of the machine, In the counting step, determining whether a reservation related function is set at night; If the reservation related function is set, determining whether the reservation time exceeds a predetermined time, if not exceeding the predetermined time, initializing a time count value and continuing cooling operation; If the reservation related function is not set or the reservation time exceeds the predetermined time, the counting time starts. At the same time, it is determined whether there is an external input for controlling the air conditioner, and if there is an external input, the count value is initialized. Operation control method of the air conditioner, characterized in that further comprising the step of operating the air conditioner.

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