KR100345487B1 - Driving control method for airconditioner - Google Patents

Abstract

The present invention relates to an operation control method of an air conditioner, and in the related art, when a user selects a low desired temperature, the air conditioner is initially operated at a low set temperature, and accordingly, the indoor temperature is also lowered. There is a problem that you feel a cold feeling faster than when it is due to the comfort is lowered. Accordingly, the present invention provides a method comprising: a first step of inputting a desired temperature by a user when switching to a comfortable driving mode after power is applied; Comparing the desired temperature of the first step with the minimum set temperature and the maximum set temperature, the operation is performed to the maximum set temperature in a control pattern that increases and decreases the desired temperature accordingly, and the operation is terminated when the operation is switched to the stop mode. Therefore, the user maintains the comfort by raising the indoor temperature before the user feels a cold feeling, and reduces the power consumption by repeatedly performing the operation of lowering after a certain amount of time.

Description

Operation control method of air conditioner {DRIVING CONTROL METHOD FOR AIRCONDITIONER}

The present invention relates to an operation control method of an air conditioner, in particular, the operation control of the air conditioner to control the room temperature repeatedly rising and falling with a constant pattern after a predetermined time operation according to the desired temperature set by the user It is about a method.

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 for cleaning 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 performs a cooling and heating function among the air conditioners, and the air conditioner is not shown. Of course, it includes an outdoor unit (hereinafter referred to as an outdoor unit).

The indoor unit 10 of the conventional air conditioner shown in FIG. 1 includes a suction port 11 formed in the upper front portion to suck indoor air, and foreign substances floating in the indoor air sucked through the suction port 11 and the like. The air filter 12 mounted on the rear side of the inlet port 11, the outlet port 13 formed at the lower front side to discharge the sucked air back into the room, and the air discharged through the outlet port 13 up, down, left and right. Wind direction control blade 14 mounted to the discharge port 13 to adjust the direction of the wind direction, and the duct 15 mounted therein to guide the flow of indoor air discharged to the discharge port 13 through the inlet 11 And an indoor heat exchanger (16) mounted at a rear side of the inlet port (11) to heat-exchange the air sucked through the inlet port (11), and at the same time sucking the indoor air through the inlet port (11). Heat exchanger by means of machine 16 Consists of air to 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 type 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 so that the refrigerant is shown by the dotted line in FIG. (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, when cooling, the four-way valve 22 is turned off, and the refrigerant is compressed by the compressor 21 → four-way valve 22 → outdoor heat exchanger 25 → one-way valve 26 → expansion, as shown by the solid line in FIG. The valve 23, the indoor heat exchanger 16, the four-way valve 22, and the compressor 21 are 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 21 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 → four-way valve 22 → outdoor heat exchanger 25 → one-way valve 26 → expansion valve 23 → 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 the 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. 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 → It is circulated from the four-way valve 22 to the compressor 21, and the indoor heat exchanger 16 starts to heat.

At this time, if the user selects the desired temperature, the cooling operation is performed for a predetermined time at the desired temperature, and then the cooling temperature is increased by 1 degree until the initial set maximum temperature (usually 27 degrees) is performed. The operation is performed by increasing the operation time for each step at each time, and FIG. 3 shows a time chart of the operation control method of the air conditioner.

However, the operation control method of the conventional air conditioner as described above, if the user selects a low desired temperature, the air conditioner initially operates at a low set temperature, and accordingly the room temperature is lowered accordingly, so the user controls the room at a high temperature. There is a problem that you feel a cold feeling faster than when it is due to the comfort is lowered.

Therefore, the present invention devised in view of the above problems has a constant pattern according to the user's initial desired temperature, the operation of the air conditioner to improve the comfort by controlling the operation to increase and decrease the room temperature repeatedly The purpose is to provide an operation control method.

1 is a cross-sectional view of an indoor unit of a general air conditioner.

Figure 2 shows a refrigeration cycle of a typical air conditioner.

Figure 3 shows a time chart for the operation control method of a conventional air conditioner.

Figure 4 is a flow chart for the operation control method of the air conditioner of the present invention.

Figure 5 is a flow chart of the operation of the indoor temperature control pattern for the operation control method of the air conditioner of the present invention.

Figure 6 is a block diagram of a device to which the operation control method of the air conditioner of the present invention is applied.

7 is a side view of an indoor unit of a general air conditioner.

8 to 14 are time charts showing a control pattern according to a desired temperature selected by a user.

***** Description of the symbols for the main parts of the drawings *****

30: room temperature sensor unit 31: air conditioning start time detection unit

32: Mycom 33: indoor fan drive part

34: Up and down wind direction drive part 35: Left and right wind direction drive part

36: Compression mechanism 37: Indoor fan

38: Up and down wind vane 39: Left and right wind vane

40: compressor

According to an aspect of the present invention, there is provided a method of operating an air conditioner, the method comprising: a first step of inputting a desired temperature by a user when a power mode is switched to a comfortable operation mode; Comparing the desired temperature of the first step with the minimum set temperature and the maximum set temperature, the operation is performed as the second step of terminating the operation when the operation is performed to the maximum set temperature in a control pattern that raises and lowers the desired temperature accordingly to the stop mode. It is characterized by.

Hereinafter, the operation and effect of the operation control method of the air conditioner according to the present invention will be described in detail with reference to the accompanying drawings.

4 is a flowchart illustrating an operation control method of the air conditioner according to the present invention, and the first step in which a desired temperature is input by a user when the air conditioner is switched to the comfortable operation mode after power is applied; The second step is to compare the desired temperature of the first step with a minimum set temperature and a maximum set temperature, and to operate in a control pattern for raising and lowering the desired temperature accordingly, and to terminate the operation when the mode is switched to the stop mode.

FIG. 5 is an operation flowchart of the indoor temperature control pattern for the operation control method of the air conditioner of the present invention. As shown in FIG. 5, when the desired temperature selected by the user is less than or equal to the minimum set temperature, the air conditioner is operated at the minimum set temperature. A first step of determining whether a predetermined time has elapsed by operating at the desired temperature selected if the temperature is between the minimum set temperature and the maximum set temperature and operating at the maximum set temperature if the temperature is equal to or greater than the maximum set temperature; A second step of determining whether a predetermined time has elapsed after the air conditioning operation is performed by raising the indoor temperature by a predetermined temperature when a predetermined time elapses; When the predetermined time has elapsed as a result of the determination of the second step, a third step of operating the air conditioner by lowering the rising temperature of the second step by a predetermined temperature is performed.

6 is a block diagram of a device to which the operation control method of the air conditioner of the present invention is applied. As shown in FIG. 6, an indoor temperature sensor unit 30 for sensing an indoor temperature and an air conditioner for checking an operating time of an air conditioner are shown. The microcomputer 32 receives the time detector 31, the detection time and the room temperature of the air conditioner start time detector 31, and outputs a control signal according to the control signal of the microcomputer 32; Position by the up and down wind direction driving unit 34 for outputting a signal, the left and right wind direction driving unit 35 for outputting the left and right wind direction driving signals according to the control signal of the microcomputer 32, and the drive signal of the up and down wind direction driving unit 34. And a left and right wind vane 38 in which the speed is controlled, and a left and right wind vane 39 in which the position and the speed are controlled by the drive signal of the left and right wind direction driving unit 35. 7 to 13 It will be described with reference.

First, when the power is turned on and the operation mode is changed to the comfortable operation mode, the desired temperature is input by the user, and the microcomputer 32 sets the desired temperature to the preset minimum set temperature (21 degrees) and maximum set temperature (27 degrees). In comparison, the operation is controlled by a control pattern that increases and decreases the room temperature accordingly, and the compressor driver 36 drives the compressor 40 by the control signal of the microcomputer 32.

When the compressor 40 is driven, the indoor heat exchanger starts to cool by circulating in the order of the compressor → four-way valve → outdoor heat exchanger → one-way valve → expansion valve → indoor heat exchanger → four-way valve → compressor.

Referring to this with reference to the side view of the indoor unit of the air conditioner of Figure 7, the air sucked into the main body through the suction unit is heat-exchanged with cold air by the latent heat of evaporation of the refrigerant flowing in the indoor heat exchanger while passing through the indoor heat exchanger, indoor heat exchange The cold air heat-exchanged in the air is guided upward by the indoor fan driven by the indoor fan drive unit and discharged into the room through the discharge port. The cold air discharged through the discharge port is vertically or vertically depending on the angle of the up and down wind vane and the left and right wind vane. The air direction is controlled to cool the room.

At this time, if the desired temperature selected by the user is less than or equal to the minimum set temperature, the microcomputer 32 initially operates the air conditioner at the minimum set temperature (for example, 21 degrees), and the minimum set temperature (21 degrees) and the maximum set temperature. If the temperature value is between (27 degrees), it is initially operated at the selected desired temperature. If the temperature is equal to or greater than the maximum set temperature (27 degrees), it is initially operated at the maximum set temperature (27) to determine whether a predetermined operation time has elapsed. The operating time is longer as the initial desired temperature is higher.

Then, as a result of the determination, if the initial operation time has elapsed for a predetermined time, the indoor temperature is increased by a predetermined temperature, and after a predetermined time elapses, if the elapsed time again, the operation of operating the air conditioning operation for a predetermined time by lowering the rising temperature by a predetermined temperature is set to the maximum set temperature Repeat until you reach (27 degrees).

More specifically, the case where the user sets the desired temperature to the minimum set temperature (21 degrees) as shown in FIG. 8 will be described with reference to FIG.

If the desired temperature is set to the minimum set temperature, it operates at the minimum set temperature for a predetermined time, and then moves up by 2 degrees and then performs 1 degree falling operation again. Repeat until you reach FIG.

9 to 13 show a control pattern when the user selects a value between the minimum set temperature (21 degrees) and the maximum set temperature (27 degrees). And performing the 1 degree falling operation is the same as that of FIG. 8 except that the operation time becomes longer as the desired temperature selected by the user is higher.

If the user selects a value equal to or larger than the maximum set temperature (27 degrees) as shown in FIG. 14, the user performs a predetermined operation for a predetermined time after the predetermined time operation at the maximum set temperature (27 degrees), and then again the maximum value. Operate at the set temperature (27 degrees).

In other words, when the desired temperature is selected by the user, according to the present invention, the rising and falling operation of the indoor temperature is performed from the temperature value between the preset minimum set temperature and the maximum set temperature to the maximum set temperature in different control patterns. Repeat it.

As described in detail above, the present invention maintains comfort by raising the room temperature before the user feels a cold feeling, and also reduces power consumption by repeatedly performing the operation of lowering the temperature after a certain time.

Claims (8)

In the operation method of the air conditioner, A first step of inputting a desired temperature by the user when the user enters the comfortable driving mode after the power is applied; A second step of comparing the desired temperature of the first step with a predetermined minimum and maximum set temperatures and operating the controller to a maximum set temperature in a control pattern that increases and decreases the desired temperature accordingly, and then terminates the operation when it is switched to the stop mode; Operation control method of the air conditioner, characterized in that performed by. The air conditioner of claim 1, wherein the second step is to operate the air conditioner to the minimum set temperature if the desired temperature selected by the user is less than or equal to the minimum set temperature, and to the selected desired temperature if the temperature is between the minimum set temperature and the maximum set temperature. A first step of determining whether a predetermined time has elapsed by operating at the maximum set temperature when the temperature is equal to or greater than the maximum set temperature; A second step of determining whether a predetermined time has elapsed after the air conditioning operation is performed by raising the indoor temperature by a predetermined temperature when a predetermined time elapses as a result of the determination of the first step; And if the predetermined time has elapsed as a result of the determination of the second step, performing the air conditioner by lowering the rising temperature of the second step by a predetermined temperature. The method according to claim 1 or 2, wherein the minimum set temperature is 21 degrees or more. The method of controlling an air conditioner according to claim 1 or 2, wherein the maximum set temperature does not exceed 27 degrees. The method of controlling an air conditioner according to claim 1 or 2, wherein the rising temperature does not exceed 2 degrees. The operation control method of an air conditioner according to claim 1 or 2, wherein the falling temperature is 1 degree or less. The operation control method of an air conditioner according to claim 1 or 2, wherein the operation time of increasing the indoor temperature is equal to or smaller than the operation time of the initial desired temperature. The operation control method of an air conditioner according to claim 1 or 2, wherein a rise and fall operation time is longer as a desired temperature selected by a user is higher.