KR100187257B1 - Device and method of air flow control for airconditioner - Google Patents

Abstract

The present invention relates to an apparatus for controlling the discharge airflow of an air conditioner capable of realizing an air conditioner in a room center relatively far from the main body, and a method for detecting the proximity of a human body and a position of a human body. Left and right sensing means, control means for controlling the air direction and the air volume of the discharged air so that the discharged air reaches the center of the room according to the proximity of the human body and the position of the human body, and to adjust the air direction of the discharged air according to the control of the control means A wind direction adjusting means for driving the wind direction control plate, and a fan motor driving means for driving the indoor fan to adjust the air volume of the discharged air according to the control of the control means, to determine the human body position or the amount of activity in the central part relatively far from the main body It is convenient to use because it automatically adjusts the wind direction angle and air volume of the discharged air. It can provide an indoor environment.

Description

Discharge airflow control device and method for air conditioner

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

2 is a longitudinal cross-sectional view of 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 to 4C are flowcharts showing the operation flow of the discharge airflow control of the air conditioner according to the present invention.

5 is an operating state of the wind up and down control plate viewed from the line A-A of FIG.

6 is an operating state of the wind direction left and right control plate seen from the B-B line of FIG.

* Explanation of symbols for main parts of the drawings

3: inlet port 7: outlet port

9: wind direction up and down control panel 11: wind direction left and right control panel

21: indoor fan motor 23: indoor fan

100: power supply means 102: operation operation means

104: perspective detection means 106: short-range detection unit

108: middle distance detection unit 110: left and right detection means

112: left detection unit 114: right direction detection unit

116: control means 118: room temperature detection means

120: compressor driving means 122: wind direction control means

124: first wind direction drive unit 125: first wind direction control motor

126: second wind direction drive unit 127: second wind direction control motor

128: fan motor driving means 130: display means

The present invention relates to a discharge airflow control apparatus and method of the air conditioner capable of realizing air conditioning in the center of the room by controlling the air direction and the air volume of the discharged air by judging the position of the human body or the amount of activity relatively far from the main body.

In the conventional air conditioner, as shown in FIG. 1, a suction grill member 5 having a plurality of suction ports 3 through which indoor air is sucked is installed at the front lower part of an indoor main body 1 (hereinafter referred to as a main body). In the upper part of the main body 1, the discharge port 7 which discharges the air sucked through the said suction port 3 and heat-exchanged by cold air or warm air is formed in the room.

In addition, the discharge port 7 is provided with a wind direction up and down control plate 9 for adjusting the direction of the air discharged to the room through the discharge port 7 up and down and the wind direction left and right control plate 11 to adjust the left and right, the main body On the front surface of (1), the cover member 13 is fixed to the interior of the indoor unit and protects the interior. At the lower side of the cover member 13, the operation mode of the air conditioner (automatic, cooling) , Dehumidification, blowing, heating, etc.) and a start / stop of operation, and an operation unit 15 for adjusting the air volume and the air direction of the air discharged through the discharge port 7.

In addition, as shown in FIG. 2, a filter member 17 is installed inside the suction grill member 5 to filter foreign substances such as dust floating in the indoor air sucked through the suction port 3. The inside of the filter member 17 is provided with a straight heat exchanger 19 to heat the indoor air filtered by the filter member 17 to cold or warm air by latent heat of evaporation of the refrigerant.

In addition, the upper part of the heat exchanger 19 to suck the indoor air through the suction port (3) and at the same time to discharge the air heat exchanged in the heat exchanger 19 to the room through the discharge port (7) indoor fan motor A blower fan 23 (hereinafter referred to as an indoor fan) that rotates in accordance with the driving of the 21 is provided, and an outer side of the indoor fan 23 covers the indoor fan 23 and the suction port 3 at the same time. The duct member 25 is installed to guide the flow of air that is sucked through and discharged to the discharge port 7.

In the air conditioner configured as described above, when the user operates the remote controller or the control unit 15 to select a desired driving mode and then turns on the driving key, the indoor fan 23 rotates according to the driving of the indoor fan motor 21. The indoor air is sucked into the main body 1 through the suction port 3.

The foreign matter such as dust floating in the indoor air sucked through the suction port 3 is removed while passing through the filter member 17, and the indoor air from which the foreign matter such as dust is removed by the filter member 17 is heat exchanger. Heat is exchanged by latent heat of evaporation of the refrigerant flowing in the heat exchanger 19 while passing through (19).

The air heat-exchanged in the heat exchanger (19) is guided upward by the duct member (25) and discharged into the room through the discharge port (7), the air discharged through the discharge port (7) wind direction up and down control plate (9) And the wind direction is adjusted up and down or left and right according to the wind direction angle of the wind direction left and right control plate (11).

At this time, the method of controlling the wind direction of the discharged air by the wind direction up and down control plate 9 and the wind direction left and right control plate 11, first, every time the key for operating the wind up and down control plate 9 provided in the operation unit 15 is turned on. When the angle of the wind direction up and down control plate 9 changes up and down, and the key is turned off, the wind direction of the discharge air is adjusted up and down according to the operation of stopping the wind up and down control plate 9.

In addition, when the wind direction left and right control plate 11 provided on the operation unit 15 is turned on, the wind direction left and right control plate 11 swings left and right, and when the key is turned on again, the wind direction left and right control plate 11 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 operating a key while directly checking the positions of the up / down control plate 9 and the right and left control plate 11. According to the wind direction angle of the upper and lower control plate 9 and the wind direction left and right control plate 11, the discharge air is discharged only up and down or left and right in a certain direction, there is a problem that the wind direction control range is narrow, the air flow can not be controlled to a long distance.

In addition, since the air volume needs to be increased for long distance air conditioning, there is an inconvenience in that the user must manipulate the wind direction accordingly.

Therefore, the present invention has been made to solve the above-described problems, the object of the present invention is to determine the position or activity of the human body relatively far from the main body to determine the wind direction angle and the amount of air discharged to use automatically The present invention provides a convenient air discharge control device and a method for controlling the air conditioner that can provide a comfortable indoor environment by air conditioning in the center of the room.

In order to achieve the above object, the discharge airflow control apparatus for an air conditioner according to the present invention includes a suction inlet for sucking indoor air, a heat exchanger for exchanging indoor air sucked through the suction opening, and discharged air exchanged by the heat exchanger. A discharge port configured to suck the indoor air through the suction port, an indoor fan for discharging air heat-exchanged by the heat exchanger into the room through the discharge port, and a wind direction control plate for controlling the air direction of the air discharged through the discharge port; In the air conditioner provided, perspective detection means for detecting the near state of the human body by detecting infrared rays generated by the human body, left and right sensing means for detecting the position of the human body by detecting infrared rays generated by the human body, and the perspective detection means Proximity state of the human body detected by the position of the human body detected by the left and right sensing means The control means for controlling the wind direction and the air volume of the discharged air so that the air discharged through the discharge port reaches the center of the room, and the wind direction control means for driving the wind direction control plate to adjust the wind direction of the discharged air according to the control of the control means And a fan motor driving means for driving the indoor fan to adjust the air volume of the discharged air according to the control of the control means.

In addition, the discharge airflow control method of the air conditioner according to the present invention, the initial position step for closing the wind direction control plate by driving the wind direction control motor at the time of power-on and operation off to prevent the position change of the wind direction control plate, and operation operation means The air conditioning operation step of discharging the heat exchanged air from the heat exchanger into the room according to the set temperature, the set air volume and the set wind direction input by the air conditioner, and the proximity state of the human body is detected by detecting infrared rays generated by the human body. A perspective discrimination step, a left and right discrimination step for detecting left and right positions of the human body by detecting infrared rays generated from the human body, a proximity state of the human body determined in the perspective discrimination step, and a left and right position of the human body determined in the left and right discrimination steps Accordingly, the wind direction tank for adjusting the wind angle of the wind direction control plate by driving the wind direction control motor so that the discharged air reaches the center of the room. Air volume control to control the air volume by controlling the speed of the indoor fan motor so that the discharged air reaches the center of the room according to the step and the proximity state of the human body determined in the perspective determination step and the left and right positions of the human body determined in the left and right discrimination step. And a display step of displaying a wave driving state according to the proximity state of the human body determined in the perspective determination step and the left and right positions of the human body determined in the left and right discrimination step.

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 required for the operation of the air conditioner, and outputs the same. ) Is a function key for inputting the operation mode (automatic, cooling, dehumidification, blowing, heating) of the air conditioner and the start / stop of operation, the set temperature (Ts), the set air volume of the discharged air, and the set wind direction. Equipped with.

In addition, the perspective detection unit 104 is an infrared sensor composed of two cells (CELL) having different sensing distances to detect an infrared ray generated by the human body and detect a proximity state of how far the human body is from the main body 1, The perspective sensing means 104 includes a cell 106 for detecting a proximate distance within 2m (hereinafter referred to as CELL # 1; hereinafter referred to as a near field detection unit) and a cell 108 for detecting a distance within a center within 4m; Hereinafter, the intermediate distance sensing unit).

The left and right detection means 110 is an infrared sensor composed of two cells (CELL) to detect the infrared rays generated by the human body to detect in which direction of the body 1, the left and right detection means 110 is left It consists of a cell (112, CELL # 1; hereinafter referred to as a left detection unit) for sensing the right, and a cell 114, CELL # 2 (hereinafter referred to as a right direction detection unit) for detecting the right direction.

In addition, the control means 116 receives the DC voltage output from the power supply means 100 to initialize the air conditioner, as well as the operation selection signal and the operation start / operation input by the operation operation means 102. A microcomputer that controls the overall operation of the air conditioner according to a stop signal, wherein the control means 116 is provided by the proximity state of the human body sensed by the perspective sensing means 104 and by the left and right sensing means 110. According to the sensed position of the human body, the direction of the wind direction and the speed of the indoor fan 23 are adjusted so that the air direction up and down control plate 9 and the air direction left and right control plate 11 reach the central part of the room relatively far from the main body 1. To control.

The indoor temperature detecting means 118 controls the indoor temperature to the temperature Ts set by the user by the driving operation means 102 to perform the air conditioning operation of the air conditioner. The temperature Tr of the air is sensed, and the compressor driving means 120 includes the temperature Ts set by the user by the driving operation means 102 and the room temperature sensed by the room temperature sensing means 118. Drive control of the compressor 121 receives the control signal output from the control means 116 according to the difference of Tr.

In addition, the wind direction adjusting means 122 is the air discharged through the discharge port 7 in accordance with the proximity of the human body sensed by the perspective sensing means 104 and the position of the human body sensed by the left and right sensing means 110. By adjusting the direction of the discharge air up and down and left and right to reach the center of the bag, the wind direction control means 122 receives the control signal output from the control means 116, the wind direction up and down control plate 9 is fixed upward The first wind direction motor driver 124 for driving the first wind direction control motor 125 to swing the section (about 15 °), and the control signal output from the control means 116 receives the wind direction left and right control plate 11 ) Is configured as a second wind direction motor driver 126 for driving the second wind direction control motor 127 to be fixed to the center constant angle, left constant angle (about, 15 °) or right constant angle (about, 15 °). have.

In addition, the fan motor driving means 128 receives a control signal output from the control means 116 to blow the air (cold or warm air) heat-exchanged to the room according to the air volume selected by the driving operation means (102). By controlling the rotation speed of the indoor fan motor 21 to drive the indoor fan 23, the display means 130 is output from the control means 116 according to the key signal input by the driving operation means (102) It displays the operation selection mode (automatic, cooling, dehumidification, blowing, heating), set temperature (Ts), and room temperature (Tr) as well as the wave (WAVE) operation status in the center of the room. Turn on / off the wave indicator.

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

4A to 4C are flowcharts showing the operation flow of the airflow control of the air conditioner according to the present invention. In FIGS. 4A to 4C, 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 ( 116).

Therefore, in step S1, the DC voltage output from the power supply means 100 is inputted from the control means 116 to initialize the air conditioner. In step S2, the control means 116 uses the wind direction up and down control plate 9 as an operation origin. The control signal for driving the first wind direction control motor 125 is output to the first wind direction motor driver 124 to move to the closed state.

Accordingly, the first wind direction motor driver 124 receives the control signal output from the control means 116 and drives the first wind direction control motor 125 at an angular speed of 22.5 ° / sec in a clockwise direction to adjust the wind direction up and down control panel. Close (9).

Subsequently, in step S3, the control means 116 transmits a control signal for driving the second wind direction control motor 127 to the second wind direction motor driver 126 to move the wind direction left and right control plate 11 to the closed state, which is the operation origin. Output

Accordingly, the second wind direction motor driver 126 receives the control signal output from the control means 116 and drives the second wind direction control motor 127 at an angular speed of 22.5 ° / SEC in the clockwise direction to adjust the wind direction left and right control plate ( 11) Close it.

At this time, in step S4, the control means 116 counters the driving time of the first and second wind direction control motors 125 and 127 to determine whether a predetermined time (about 7 seconds) has elapsed, and when the predetermined time has not elapsed. In the case of NO, it is determined that the wind direction up and down control plate 9 and the wind direction left and right control plate 11 are not completely closed, and the flow returns to step S2, and the operation of step S2 or less is repeated until a predetermined time elapses.

As a result of the discrimination in step S4, when the predetermined time has elapsed (YES), it is determined that the wind direction up and down control plate 9 and the wind direction left and right control plate 11 are completely closed, and the process proceeds to step S5 to indicate the first and second wind directions. The motor driving units 124 and 126 stop driving of the first and second wind direction regulating motors 125 and 127 under the control of the control means 116 to complete the closing operation of the wind direction up and down control plate 9 and the wind direction left and right control plate 11. This state is used as a starting point for operation.

On the other hand, the initialization routine from step S2 to step S5 is also performed at the time of driving off, which means that the wind direction up and down control plate 9 and the wind direction left and right control plate 11 are positioned by any external operation at the time of power-on or during operation off. If it is changed to precise position control is difficult to perform the initialization routine to completely close the wind direction up and down control plate 9 and the wind direction left and right control panel (11).

Subsequently, in step S6, the set temperature Ts, the set air volume, and the set wind direction of the room to be cooled or heated by the operating operation means 102 are input to the control means 116. In step S7, the operation / stop key (hereinafter If the operation key is not turned on (NO), the operation of step S7 or less is repeated while the air conditioner is kept in operation standby until the operation key is turned on.

As a result of the discrimination in step S7, when the operation key is turned on (YES), an operation command and an operation signal are input from the operation operation means 102 to the control means 116, so that the operation of cooling or heating is performed in step S8. Further, the control means 116 outputs a control signal for driving the indoor fan motor 21 to the fan motor driving means 128.

Accordingly, the fan motor drive means 128 receives the control signal output from the control means 116 according to the set air volume inputted by the driving operation means 102 (speed) of the indoor fan motor 21. To drive the indoor fan (23).

When the indoor fan 23 is driven according to the set air volume, the indoor air is sucked into the main body 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 118 detects and outputs the control means 116.

Subsequently, in step S9, the control means 116 adjusts the wind direction angles of the wind direction up and down control plate 9 and the wind direction left and right control plate 11 according to the set wind direction inputted by the driving operation means 102. A control signal for driving the wind direction control motors 125 and 127 is output to the first and second wind direction motor drivers 124 and 126.

Accordingly, the first and second wind direction motor drivers 124 and 126 receive the control signals output from the control means 116 and drive the first and second wind direction control motors 125 and 127 to wind up and down the regulating plate 9 and the wind direction. The wind direction angle of the left and right adjustment plate 11 is adjusted according to the wind direction set by the user.

Subsequently, in step S10, the indoor temperature Tr sensed by the indoor temperature detecting means 118 is compared with the temperature Ts set by the user to the operation operation means 102 to determine whether the compressor 121 is a driving condition. Determine.

The driving condition of the compressor 121 is a case in which the room temperature Tr sensed by the room temperature sensing means 118 is greater than the set temperature Ts in the cooling operation, and the room temperature (in the heating operation). 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 S10, if it is not the driving condition of the compressor 121 (NO), the process returns to step S8 and repeatedly performs the operation of step S8 or less while continuously detecting the room temperature Tr, In the case of the driving condition of the compressor 121 (YES), the control means 116 determines the operating frequency of the compressor 121 according to the difference between the room temperature Tr and the set temperature Ts. The control signal for driving the compressor 121 is output to the compressor driving means 120.

Therefore, the compressor driving means 120 drives the compressor 121 according to the operating frequency determined by the control means 116.

When the compressor 121 is driven, the indoor fan 23 is driven in the step S12 while the indoor air is sucked into the main body 1 through the suction port 3 and floated in the indoor air sucked through the suction port 3. Foreign matter such as dust is removed while passing through the filter member 17, and the indoor air from which foreign matter such as dust is removed by the filter member 17 flows into the heat exchanger 19 while passing through the heat exchanger 19. Heat exchanged by latent heat of evaporation of the refrigerant.

The air heat-exchanged in the heat exchanger 19 is moved to the upper side by the guide of the duct member 25 and according to the wind direction angle of the wind direction up and down control plate 9 and the wind direction left and right control plate 11 installed so as to be rotatable in the discharge port 7. 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, the step S13 detects and inputs infrared rays generated in the human body by the middle distance detection unit 108 of the perspective sensing means 104 to determine whether the human body is within a center within 4 m. If there is a pulse, and if there is an input pulse in the intermediate distance detecting unit 108 (YES), the process proceeds to step S14 to determine whether the human body is at a proximate distance within 2 meters, and the near distance detecting means 104 is determined. The detector 106 detects the infrared rays generated by the human body to determine whether there is an input pulse.

As a result of the discrimination in step S14, when there is no input pulse in the near field sensing unit 106 (NO), the process proceeds to step S15 to determine the left and right positions of the human body so as to determine the left and right positions of the left and right sensing means 110 ( In 112, infrared rays generated by the human body are detected to determine whether there is an input pulse.

As a result of the discrimination in step S15, if there is an input pulse in the left direction detecting unit 112 (YES), the process proceeds to step S16 and the right direction detecting unit 114 of the left and right sensing means 110 determines the left and right positions of the human body. ) Detects the infrared rays generated by the human body to determine whether there is an input pulse.

As a result of the discrimination in step S16, when there is an input pulse in the right direction detecting unit 114 (YES), it is determined that there is movement of the human body on the left and right sides of the center of the room relatively far from the main body 1; Proceeding to S17, the control means 116 sets the operation mode of the air conditioner to the A mode, and when the right direction detecting unit 114 has no input pulse (NO), it is relatively far from the main body 1. It is determined that there is movement of the human body only on the left side of the center part, and the flow advances to step S18, whereby the control means 116 sets the operation mode of the air conditioner to the B mode.

On the other hand, when the determination result in step S15 indicates that there is no input pulse in the leftward detection unit 112 (NO), the flow advances to step S19 to determine whether there is an input pulse in the rightward detection unit 114, and to the rightward direction. If there is an input pulse in the sensing unit 114 (YES), it is determined that the human body only moves to the right side of the central part relatively far from the main body 1, and the flow advances to step S20. Set the operation mode of the mode to C mode.

As a result of the discrimination in step S19, when there is no input pulse in the right direction detecting unit 114 (NO), it is determined that there is no movement of the human body on the left and right sides of the central part relatively far from the main body 1, and step S21. Further, the control means 116 sets the operation mode of the air conditioner to the D mode.

On the other hand, when the determination result in step S13 has no input pulse in the intermediate distance detection unit 108 (NO), and the determination result in step S14, when there is an input pulse in the near detection unit 106 ( YES), the process proceeds to the step S21 and performs operations below step S21.

Subsequently, in step S22, it is determined whether the operation mode of the air conditioner is the D mode, and if it is not the D mode (NO), the flow advances to step S23, whereby the control means 116 is relatively far from the main body 1; A control signal for displaying a wave operation state that cooperates with the center of the room is output to the display means 130.

Therefore, in the display means 130, the wave display lamp is turned on under the control of the control means 116 to display the wave operation state. In step S24, the control means 116 discharges the air discharged through the discharge port 7 in the main body. A control signal for driving the indoor fan motor 21 is output to the fan motor driving means 128 so as to reach the center of the room relatively far from (1).

Accordingly, the fan motor drive means 128 receives the control signal output from the control means 116 to drive the rotational speed of the indoor fan motor 21 at a turbo wind amount (about 670 RPM), and control in step S25. The means 116 outputs a control signal to the first wind direction motor driver 124 for adjusting the angle of the wind direction adjusting plate 9 so that the discharged air reaches the center of the room.

Therefore, the first wind direction motor driver 124 receives the control signal output from the control means 116 and drives the first wind direction control motor 125, as shown in FIG. ) Swings upwards (about 15 °).

Subsequently, in step S26, it is determined whether the operation mode of the air conditioner is A mode. If it is not in A mode (NO), the flow advances to step S27 to determine whether the operation mode of the air conditioner is B mode.

As a result of the determination in step S27, if it is not B mode (NO), it is determined that the operation mode is C mode, and the flow advances to step S28. A control signal for adjusting the angle of 11 is output to the second wind direction motor driver 126.

The second wind direction motor driver 126 receives the control signal output from the control means 116 to drive the second wind direction control motor 127 to adjust the angle of the wind direction left and right control plate 11 to FIG. 6 (c). As shown, after the movement to the right predetermined angle (about 15 °), the driving of the second wind direction control motor 127 is stopped.

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 19 while passing through the heat exchanger 19, and the air heat-exchanged in the heat exchanger 19 is ducted. The air is discharged by giving a wave to the discharge airflow according to the upward constant section swing of the wind direction up and down control plate 9 installed in the discharge port 7 and fixing the right angle of the right side of the wind direction left and right control plate 11 with the guidance of (25). Reaches the right side of the center portion relatively far from the main body 1, and the air volume of the discharged air increases due to the turbo air volume driving of the indoor fan motor 21, and returns to the step S13 while performing air conditioning in the right center portion. The operation following step S13 is repeated.

On the other hand, as a result of the determination in step S27, in the case of the B mode (YES), the process proceeds to step S29, where the second wind direction motor driver 126 receives the control signal output from the control means 116 to adjust the second wind direction. After driving the motor 127 to move the angle of the wind direction left and right control plate 11 to a predetermined left angle (about 15 °) as shown in FIG. 6 (a), the second wind direction adjustment motor 127 Stops driving.

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 19 while passing through the heat exchanger 19, and the air heat-exchanged in the heat exchanger 19 is ducted. The air is discharged by giving a wave to the discharge airflow according to the upward constant section swing of the wind direction up and down control plate 9 installed at the discharge port 7 and fixed to the left side of the wind direction left and right control plate 11 with the guidance of (25). Reaches the left side of the central part relatively far from the main body 1, and the air volume of the discharged air increases due to the turbo air volume driving of the indoor fan motor 21, and returns to the step S13 while performing air conditioning in the left center part. The operation following step S13 is repeated.

In addition, when the determination result in step S26, in the case of A mode (YES), the process proceeds to step S30, where the second wind direction motor driver 126 receives the control signal output from the control means 116 to adjust the second wind direction. After driving the motor 127 to move the angle of the wind direction left and right control plate 11 to the center constant angle as shown in FIG. 6 (b), the driving of the second wind direction adjustment motor 127 is stopped.

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 19 while passing through the heat exchanger 19, and the air heat-exchanged in the heat exchanger 19 is ducted. The air is discharged by giving a wave to the discharge airflow according to the upward constant section swing of the wind direction up and down control plate 9 installed at the discharge port 7 and fixing the center constant angle of the wind direction left and right control plate 11 with the guidance of (25). Reaches the front of the central portion relatively far from the main body 1 and at the same time, the air volume of the discharged air increases due to the turbo wind driving of the indoor fan motor 21, and returns to the step S13 while performing air conditioning in the front center. The operation following step S13 is repeated.

As a result of the determination in step S22, in the case of the D mode (YES), the control means 116 outputs a control signal for displaying the wave operation stop to the display means 130 in step S31.

Accordingly, the display means 130 displays the wave operation stop state by turning off the wave display lamp under the control of the control means 116, and in step S32, the first and second wind direction control motors 125 and 127 and the indoor fan motor ( 21) returns to the cooling or heating operation mode set value before the wave mode, and repeats the operation of step S13 or below while continuing normal operation.

According to the discharge airflow control apparatus and method of the air conditioner according to the present invention as described above, by determining the human body position or the amount of activity of the central portion relatively far from the main body, it automatically adjusts the wind direction angle and air volume of the discharged air It is easy to use and has an excellent effect of providing a comfortable indoor environment by air conditioning in the center of the room.

Claims (2)

A suction port for sucking indoor air, a heat exchanger for exchanging indoor air sucked through the suction port, a discharge port for discharging air exchanged by the heat exchanger, and suctioning indoor air through the suction port, An air conditioner having an indoor fan for discharging heat-exchanged air into the room through the discharge port and a wind direction control plate for adjusting the wind direction of the air discharged through the discharge port, wherein the infrared ray generated by the human body is detected to approach the human body. Perspective sensing means for detecting the detection, Left and right sensing means for detecting the left and right positions of the human body by detecting the infrared rays generated by the human body, Proximity state of the human body detected by the perspective sensing means and the human body detected by the left and right sensing means According to the left and right positions, the air discharged through the discharge port reaches the center of the room. Control means for outputting a control signal for controlling the wind direction angle of the wind direction control plate and the speed of the indoor fan, and swinging the wind direction up and down control panel in a predetermined section to adjust the wind direction of the discharge air in accordance with the control signal from the control means Wind direction control means for fixing the wind direction left and right control plate at a predetermined angle in the center, left and right, fan motor driving means for driving the indoor fan with turbo air volume to adjust the air volume of the discharged air according to a control signal from the control means; And a display means for displaying a wave operating state for air conditioning the central portion of the room in accordance with a control signal from the control means. Initial position step of closing the wind direction up / down / left / right control panel by driving the wind direction control motor when the power is turned on and off to prevent the position fluctuation of the wind direction up / down / left / right control panel, and the set temperature and set wind volume inputted by the operation operation means. And an air conditioning operation step of discharging the heat exchanged air from the heat exchanger into the room according to the set wind direction to perform indoor air conditioning, and a perspective determination step of detecting the proximity state of the human body by detecting infrared rays generated from the human body, The left and right discrimination step of detecting the left and right positions of the human body by detecting infrared rays, and the wind direction left and right control plate is fixed to the center, left and right at a predetermined angle according to the left and right positions of the human body determined in the left and right discrimination step to determine in the perspective discrimination step In accordance with the proximity state of the human body swings the wind direction upward and downward control plate at a predetermined interval to adjust the wind direction of the discharged air Wind direction control step and the air volume control step of controlling the air volume of the discharged air by driving the indoor fan motor to the turbo air volume in accordance with the proximity state of the human body determined in the perspective discrimination step, and the left and right positions of the human body identified in the left and right discrimination step And a display step of displaying a wave operating state for air-conditioning the central part of the room according to the proximity state of the human body determined in the perspective discriminating step.