KR100244327B1 - Air flow control apparatus and control method for air conditioner - Google Patents

Abstract

The present invention relates to an apparatus for controlling the discharge airflow of an air conditioner, and a method thereof, wherein the indoor unit heat-exchanging indoor air sucked through an intake port to discharge the discharge air through a discharge port, wherein the air discharged through the discharge port is close to the indoor unit. A driving operation means having a near key to be supplied to the control unit, control means for controlling the wind direction and the air volume of the discharge air such that the discharge air implements the near air according to the key operation of the driving operation means, and according to the control of the control means. Wind direction control means for adjusting the wind direction of the air discharged through the discharge port by moving the wind vane, and air volume control to control the air volume of the air discharged through the discharge port by varying the air volume of the indoor fan under the control of the control means It is composed of means, and it is easy to use by controlling the wind direction and volume of air at the same time by simple key operation. , It is possible to increase the conditioning effects of the local area.

Description

Discharge airflow control device and method for air conditioner

The present invention relates to a discharge airflow control apparatus and method of the air conditioner capable of realizing short-range air conditioning by adjusting the air direction and the air volume of the discharged air.

In general, an air conditioner includes a heating device that warms indoor cold air and supplies it to a room, and a cooling device that supplies cold indoor hot air to a 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 of an air conditioner (commonly referred to as an air conditioner) that performs an air conditioning function among the air conditioners described above.

Of course, the air-conditioning device of course includes an outdoor unit not shown.

As shown in FIG. 1, reference numeral 1 denotes an indoor main body (hereinafter, referred to as an indoor unit) of an air conditioner, and an inlet 3 for sucking indoor air is formed on the front of the indoor unit 1, In the lower part of the front surface of the indoor unit 1, a discharge port 5 for discharging air (cold or warm air) heat-exchanged by a heat exchanger described later is formed.

On the right side of the discharge port 5, a remote control signal receiver 7 for receiving a remote control signal transmitted from a remote controller 9 (hereinafter referred to as a remote controller) is provided, and the discharge port 5 is provided with the discharge port ( 5) Up and down wind vane 11 for adjusting the direction of the air discharged into the room through up and down and left and right wind vane 13 for adjusting the left and right are installed.

On the other hand, the remote control 9, the operation / stop, operation selection (automatic, cooling, dehumidification, blowing, heating, etc.) of the air conditioner, air volume selection (strong wind, weak wind, breeze, etc.), turbo, mild, temperature control, etc. A plurality of operation mode keys for input and a plurality of timer mode keys for inputting a current time, a simple reservation, a start / end reservation, and the like are provided.

FIG. 2 is a side cross-sectional view of the indoor unit of FIG. 1 in a state where the indoor unit is installed on a wall, and the same parts as in FIG.

As shown in FIG. 2, the inside of the indoor unit 1 has a straight shape at the rear side of the intake port 3 so as to heat-exchange the indoor air sucked through the intake port 3 to cold or warm air by the latent heat of evaporation of the refrigerant. A heat exchanger (15) is provided, and at the lower rear side of the heat exchanger (15), the air intakes heat from the heat exchanger (15) at the same time as the intake of indoor air through the suction port (3). An indoor fan 17 for discharging into the room is installed.

In addition, a duct member 19 is installed inside the indoor unit 1 to guide the flow of air sucked through the suction port 3 and discharged to the discharge port 5.

On the other hand, reference numeral 21 is an evaporated water dish.

In the air conditioner configured as described above, when the user operates the remote controller 9 and presses the operation / stop key (hereinafter referred to as the operation key), and inputs the desired operation mode (for example, cooling) and the set temperature, The remote control signal corresponding to the key input is encoded by a predetermined protocol, and the encoded signal is modulated to transmit an infrared signal.

When the infrared signal is transmitted from the remote control unit 9, the remote control signal receiving unit 7 of the indoor unit 1 receives it, converts it into an electric signal, and demodulates the converted electric signal to start operation of the indoor unit 1. .

At this time, when the indoor sensor 1 detects the indoor temperature of the location where the indoor unit 1 is located by the temperature sensor (not shown) in the indoor unit 1, the indoor unit 1 according to the difference between the set temperature and the room temperature transmitted from the remote controller 9 Determine the operating frequency of the compressor to drive.

When the compressor is driven, the heat exchanger 15 is heat-exchanged in accordance with the circulation of the refrigerant, so that the indoor air sucked into the indoor unit 1 passes through the heat exchanger 15 and is caused by latent heat of evaporation of the refrigerant flowing in the heat exchanger 15. The air is discharged through the discharge port 5 while being guided by the duct member 19 while being heat-exchanged with cold air, and the air discharged through the discharge port 5 is the up-and-down wind vane 11 and the wind vane 13. Depending on the angle, the wind direction is adjusted up and down or left and right to perform indoor cooling.

At this time, the method of controlling the wind direction of the discharged air by the up and down wind vane 9 and the left and right wind vane 11, the first time the key for operating the up and down wind vane 11 provided in the remote control (9). When the angle of the up-down wind vane 11 changes up and down, and the key is turned off, the up-down wind vane 11 is stopped to adjust the wind direction of the discharged air up and down.

In addition, when the key for operating the left and right wind vane 13 provided on the remote control 9 is turned on, the left and right wind vane 13 swings left and right, and when the key is turned on again, the left and right wind vane 13 is stopped. According to the air direction of the discharge air was adjusted to the left and right.

However, in the conventional air conditioner configured as described above, it is inconvenient to use because the user needs to find the desired discharge airflow pattern by manipulating the keys while directly checking the positions of the up and down wind direction blades 11 and the left and right wind direction wings 13. According to the wind direction angle of the wind vane 11 and the left and right wind vane 13, the discharge air is discharged only in a predetermined direction of up and down or left and right, there is a problem that can not control the near-air flow because the wind direction control range is narrow.

In addition, when a strong wind is required to increase the amount of wind, so if a person is located close to the indoor unit (1), there was an inconvenience that the user must also manipulate the wind direction and the amount of air flow accordingly.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the object of the present invention is to control the air direction and the air volume of the discharged air at the same time by a simple key operation, easy to use, can increase the air-conditioning effect of the short distance The present invention provides a discharge airflow control apparatus for an air conditioner and a method thereof.

In order to achieve the above object, the discharge airflow control apparatus of an air conditioner according to the present invention is an indoor unit that heats indoor air sucked through an inlet and discharges it through a discharge port, wherein the air discharged through the discharge port is close to the indoor unit. A driving operation means having a near key to be supplied to a short distance, control means for controlling the wind direction and the air volume of the discharge air such that the discharge air implements the near air according to the key operation of the driving operation means, and the control of the control means. Wind direction adjusting means for adjusting the wind direction of the air discharged through the discharge port by moving the wind vane, and the air volume to control the air volume of the air discharged through the discharge port by varying the air volume of the indoor fan under the control of the control means Characterized in that consisting of the adjusting means.

In addition, the method for controlling the discharge airflow of the air conditioner according to the present invention includes a driving discrimination step for determining whether the near wind is selected by the driving operation means, and a wind direction for swinging up and down the wind vane when the near wind is selected in the driving discrimination step. In the control step and the wind direction control step, the air volume of the indoor fan decreases as the up and down wind vane rises, and the air volume control step of increasing the air flow rate as the up and down wind vane descends, and the wind direction and the air volume adjusted in the air volume control step According to the air discharge operation step of performing the indoor air conditioning of the short-range by implementing the discharge air in the near-air.

1 is a perspective view showing an indoor unit of a general air conditioner.

FIG. 2 is a side cross-sectional view of the indoor unit of FIG. 1 mounted on a wall; FIG.

3 is a control block diagram of the discharge airflow control apparatus of the air conditioner according to an embodiment of the present invention.

4A and 4B are flowcharts showing an operation procedure of the discharge airflow control of the air conditioner according to the present invention.

<Explanation of symbols for main parts of drawing>

1: indoor unit 5: discharge port

11: up and down wind vane 13: left and right wind vane

15: heat exchanger 17: indoor fan

102: operation operation means 104: control means

110: wind direction control means 112: up and down wind direction control unit

114: left and right wind direction control unit 116: fan motor driving means

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

Since the air conditioner according to the present invention is the same as the conventional configuration shown in Figs. 1 and 2, the same name and the same reference numeral are specified to omit overlapping description.

As shown in FIG. 3, the power supply means 100 converts a commercial AC voltage supplied from an AC power supply terminal (not shown) into a predetermined DC voltage necessary for the operation of the air conditioner, and outputs the same. Has a plurality of function keys to input the operation mode (automatic, cooling, dehumidification, blowing heating, etc.) of the air conditioner, the set air volume of the discharged air, the set wind direction, the set temperature (Ts), and the operation / stop of the air conditioner. This driving operation means 102 is provided with a short distance key for adjusting the air direction and the air volume of the discharged air so that the discharged air is intensively supplied to an area (near distance) close to the indoor unit 1.

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 input by the operation operation unit 102 and the operation start / operation. A microcomputer that controls the overall operation of the air conditioner in accordance with a stop signal, wherein the control means 104 controls the wind direction angle of the up-and-down wind vane 11 so that the discharged air is supplied to the short distance according to the on operation of the short distance key. The air volume of the indoor fan 17 is controlled.

The indoor temperature detecting means 106 detects the temperature Tr of the indoor air sucked through the suction port 3 so as to detect the indoor temperature of the location where the indoor unit 1 is installed, and the compressor driving means 108 operates the operation. The compressor receives the control signal output from the control means 104 according to the difference between the temperature Ts set by the user 102 and the room temperature Tr sensed by the room temperature sensing means 106. 109 to drive control.

In addition, the wind direction control means 110 is to adjust the direction of the discharge air up and down and left and right so that the air discharged through the discharge port 5 is supplied to the short distance in accordance with the on operation of the near key, this wind direction control means 110 ) Is an up-down wind direction control unit 112 for driving the up-down stepping motor 1130 to move the up-and-down wind vane 11 by receiving the pulse signal output from the control means 104 and the output from the control means 104. It is composed of a left and right wind direction control unit 114 for driving the left and right stepping motor 115 so that the left and right wind direction wing 13 is moved to receive the pulse signal.

In addition, the fan motor driving means 116 increases or decreases the wind direction of the discharged air so that the air discharged through the discharge port 5 is concentrated at a short distance according to the on-movement of the near key. By controlling the rotation speed of the indoor fan motor 117 by receiving a control signal output from the control means 104 to blow the heat exchanged air (cold or warm air) in accordance with the air volume set by the user by the indoor fan ( Drive control.

In addition, in the drawing, the display means 118 is a driving selection mode (automatic, cooling, dehumidifying, blowing, heating, etc.) input by the driving operation means 102 under the control of the control means 104, and the temperature and time. In addition to the display, the short-range display lamp indicating the near-operation state is turned on / off.

Hereinafter, the effect of the discharge airflow control device and method of the air conditioner configured as described above will be described.

4A and 4B are flowcharts showing the operation procedure of the discharge airflow control of the air conditioner according to the present invention. In Figs. 4A and 4B, 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 terminal (not shown) into a predetermined DC voltage required for driving the air conditioner, thereby driving each circuit and control means ( Output to 104).

Therefore, in step S1, the DC voltage output from the power supply means 100 is input from the control means 104 to initialize the air conditioner.

At this time, when the user operates the operation operation means 102 and presses the operation key, inputs the operation mode (for example, cooling), the set temperature (Ts), the set air volume, and the set wind direction of the desired air conditioner, and the operation operation. An operation selection signal and an operation start signal are input from the means 102 to the control means 104.

Accordingly, in step S2, the control means 104 determines whether the operation key is on, and if the operation key is not on (NO), the control unit 104 keeps the air conditioner in operation standby until the operation key is on. Repeat the operation below S2.

As a result of the discrimination in step S2, when the operation key is turned on (YES), the control means 104 sends a control signal for driving the indoor fan motor 117 to the fan motor driving means 116. Output

Therefore, the fan motor driving means 116 drives the indoor fan 17 by controlling the rotation speed (speed) of the indoor fan motor 117 according to the set air volume inputted by the driving operation means 102.

When the indoor fan 17 is driven according to the set air volume, the indoor air is sucked into the indoor unit 1 through the suction port 3, at which time the temperature Tr of the indoor air sucked through the suction port 3 is room temperature. The sensing means 106 detects and outputs the control means 104.

Subsequently, in step S4, the control means 104 adjusts the wind direction angle of the up-down wind vane 11 and the left-right wind vane 13 according to the set wind direction inputted by the driving operation means 102. The control signals for driving the 113 and 115 are output to the up and down and left and right wind direction control units 112 and 114.

Therefore, the up and down and left and right wind direction adjusting units 112 and 114 receive the control signal output from the control means 104 and drive the up and down and left and right wind stepping motors 113 and 115 and the up and down wind direction blades 11 and the left and right wind direction wings. Adjust the wind direction angle of (13) according to the wind direction set by the user.

Subsequently, in step S5, the indoor temperature Tr sensed by the indoor temperature detecting means 106 is compared with the temperature Ts set by the user to the operation operation means 102 to determine whether the compressor 109 is a driving condition. Determine.

The driving condition of the compressor 109 is a case in which the room temperature Tr sensed by the room temperature sensing means 106 is greater than the set temperature Ts during the cooling operation, and the room temperature ( The case where Tr) is smaller than the set temperature Ts is described. In the present invention, the cooling or heating operation will be described as an example.

As a result of the discrimination in step S5, when it is not the driving condition of the compressor 109 (NO), the flow returns to the step S3 and repeatedly performs the operation of step S3 or less while continuing to detect the room temperature Tr. If it is the driving condition of the compressor 109 (YES), the control means 104 determines the operating frequency of the compressor 109 according to the difference between the room temperature Tr and the set temperature Ts. The control signal for driving the compressor 109 is output to the compressor driving means 108.

Therefore, the compressor driving means 108 drives the compressor 109 according to the operating frequency determined by the control means 104.

When the compressor 109 is driven, the indoor fan 17 is driven into the indoor unit 1 through the suction port 3 while the indoor fan 17 is driven, and the indoor air sucked through the suction port 3 exchanges heat. Heat is exchanged by the latent heat of evaporation of the refrigerant flowing in the heat exchanger 15 while passing through the vessel 15.

The air heat-exchanged in the heat exchanger 15 is moved upward by the guide of the duct member 19 and according to the wind direction angle of the up-down wind vane 11 and the left-right wind vane 13 which are rotatably installed at the discharge port 5. Air conditioning is performed by adjusting the wind direction up and down or left and right.

In the normal operation of the air conditioner as described above, in step S8, it is determined whether the near key of the operation operation means 102 is turned on. If the near key is not turned on (NO), the process returns to step S7 to return to normal. The operation below Step S7 is repeatedly performed while continuing operation.

As a result of the discrimination in step S8, when the near key is turned on (YES), the key signal corresponding to the near drive mode is input from the driving operation means 102, and the control means 104 proceeds to step S9. Outputs a control signal for displaying a near-field operation state to the display means 118;

Therefore, the display means 118 turns on the short-range display lamp under the control of the control means 104 to display the near-field operation state. In step S10, the control means 104 determines that the air discharged through the discharge port 5 is indoor unit. The driving pulse for swinging the up-and-down wind direction blades 11 is output to the up-and-down wind direction control unit 112 so as to be concentrated in an area (near distance) close to (1).

Accordingly, the up and down wind direction control unit 112 receives the driving pulse output from the control means 104 to rotate the up and down stepping motor 113, the up and down wind vane 11 mounted on the rotating shaft of the up and down stepping motor 113. ) Rises, and in step S11 the control means 104 sends the air volume control signal to the fan motor driving means 116 so as to adjust the air volume when the up-and-down wind vane 11 rises to the data stored on the ROM table. Output

Therefore, the fan motor driving means 116 controls the rotation speed of the indoor fan motor 117 according to the air volume control signal output from the control means 104, so that the up and down wind vane 11 rises, the indoor fan 17 increases. Gradually decrease the airflow.

At this time, in step S12, the control means 104 counts the number of driving pulses to be output and determines whether the up-and-down wind vane 11 has reached the ascending completion position, which means that the up and down wind vane 11 has reached the ascending completion position. Since the number of pulses at the time is set in advance in the control means 104, the control means 104 determines the number of driving pulses output by the built-in counter to determine whether the up-and-down wind vane 11 has reached the ascending completion position. You can do it.

As a result of the discrimination in step S12, when the up-down wind vane 11 does not reach the ascending completion position (NO), the control means 104 returns to the step S10, and the control means 104 raises the up-down wind vane 11 up. The operation of step S10 or less is repeated while outputting the driving pulse to the up-and-down wind direction adjusting unit 112 until the position is reached.

On the other hand, when the determination result in step S12, when the up and down wind vane 11 has reached the ascending completion position (YES), go to step S13 to adjust the driving pulse for lowering the up and down wind vane 11 Output to the unit 112.

Accordingly, the up and down wind direction control unit 112 receives the driving pulse output from the control means 104 to rotate the up and down stepping motor 113, the up and down wind vane 11 mounted on the rotating shaft of the up and down stepping motor 113. ) Begins to descend, and in step S14, the control means 104 adjusts the air volume control signal to the fan motor driving means 116 so as to adjust the air volume when the up-and-down wind vane 11 descends to the data stored on the ROM table. Output

Therefore, the fan motor driving means 116 controls the rotation speed of the indoor fan motor 117 according to the air volume control signal output from the control means 104, so that the up and down wind vane 14 is lowered, the indoor fan 17 Gradually increase the air volume.

At this time, in step S15, the control means 104 counts the number of output pulses to determine whether the up-and-down wind vane 11 has reached the lowered completion position, which means that the up-down wind vane 11 has reached the lowered completion position. Since the number of pulses at the time is set in advance in the control means 104, the control means 104 can determine whether the up-and-down wind vane 11 has reached the descending position by counting the number of output pulses.

As a result of the discrimination in step S15, when the up-down wind vane 11 does not reach the lowered completion position (NO), the control unit 104 returns to the step S13, and the control unit 104 completes the down wind vane 11 down. The operation of step S13 or less is repeated while outputting a driving pulse to the up-and-down wind direction adjusting part 112 until it reaches a position.

On the other hand, when the determination result in step S15 indicates that the up-and-down wind vane 11 reaches the lowered completion position (YES), the flow advances to step S16 to determine whether the near key is turned off and the near key is not turned off. (NO), the flow returns to the step S10 and the operation of the step S10 or less is repeated.

Accordingly, the indoor air sucked through the suction port 3 is heat-exchanged by the latent heat of evaporation of the refrigerant flowing in the heat exchanger 15 while passing through the heat exchanger 15, and the air heat-exchanged in the heat exchanger 15 is ducted. Under the guidance of (19) is moved to the upper and discharged into the room through the discharge port (5), at this time, the up and down wind vane 11 as the wing swings up and down gradually decrease the air volume and the up and down wind vane (11) is lowered Since the air volume gradually increases as the amount of air is gradually increased, a discharge air stream of strong wind is supplied intensively to a short distance close to the indoor unit 1 to perform close air conditioning.

As a result of the discrimination in step S16, when the near key is turned off (YES), the key signal corresponding to the near drive mode stop is input from the driving operation means 102, and the control means 104 proceeds to step S17. A control signal for displaying near motion stop of the harmonic is output to the display means 118.

Accordingly, the display means 118 turns off the near display lamp according to the control of the control means 104 to display the near-operation stop state, and in step S18 the up-down and left-right wind vanes 11 and 13 and the indoor fan 17 Returns to the cooling or heating operation mode setting value before the short-range mode, and repeats the operation of step S7 or below while continuing the normal operation in step S7.

According to the discharge airflow control apparatus and method of the air conditioner according to the present invention as described above, it is easy to use by adjusting the wind direction and the air volume of the discharged air at the same time with a simple key operation, it is possible to increase the close air conditioning effect There is an effect.

Claims (2)

In an air conditioner that heats indoor air sucked through a suction port and discharges it through a discharge port, a short-range key for inputting a short-range driving signal of the air conditioner and swinging up and down wind direction wings when a short-range driving signal is input from the short-range key is input. A control means for outputting a control signal for outputting a control signal for varying the air volume of the indoor fan according to the wind direction angle of the up-and-down wind direction blades, and swinging the up-down wind direction wings up and down according to the control signal from the control means. Wind direction control means for adjusting the wind direction of the air discharged through the discharge port, and the air volume of the indoor fan is increased and decreased when the up and down wind vane swings up and down according to the control signal from the control means is discharged through the discharge port Air tank, characterized in that consisting of air flow rate control means for controlling the air flow in a short distance Discharge flow control device of the group. A keyon discrimination step of determining whether the near key is turned on during operation of the air conditioner; and a wind direction control step of controlling the wind direction of the discharged air by swinging up and down wind vanes when the near key is turned on in the key discrimination step; In the wind direction control step, as the up and down wind vane rises, the air volume of the indoor fan is decreased, and as the up and down wind vane falls, the air volume of the indoor fan is increased, thereby controlling the air volume of the discharged air at a short distance operation step. Method for controlling the discharge airflow of the machine.

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