KR0182587B1 - Operating control device and its method of airconditioner - Google Patents

Abstract

The present invention provides an air conditioner operation control apparatus and method for selectively opening and closing the front panel 5 having the inlet port 3 according to an operation mode (cooling, heating, blowing, dehumidifying operation, etc.) to increase air conditioning efficiency. Regarding, the lower front panel 33 that is opened and closed by the opening and closing method to divide the suction area of the front panel 5, and the opening and closing of the lower front panel 33 to adjust the suction amount of the indoor air according to the operation mode Control means 104 for controlling the operation, and the panel motor driving means 108 for driving the panel motor 34 to open and close the lower front panel 33 in accordance with the operation mode under the control of the control means 104. In this case, by selectively opening and closing the lower front panel 33 in accordance with the operation mode (cooling, heating, blowing, dehumidification, etc.) to adjust the suction amount of the indoor air according to the operation mode can increase the heating and cooling efficiency.

Description

Operation controller and method of air conditioner

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

2 is a side cross-sectional view of FIG.

3 is a perspective view showing the indoor unit of the air conditioner according to an embodiment of the present invention.

4 is a side cross-sectional view of FIG.

Figure 5 is a perspective view showing the opening and closing state of the front panel during the blowing or dehumidification operation according to the present invention.

6 is a perspective view showing the opening and closing state of the front panel during the cooling or heating operation according to the present invention.

7 is a control block diagram of an operation controller of an air conditioner according to an embodiment of the present invention.

8A and 8B are flowcharts showing the operation control operation procedure of the air conditioner according to the present invention.

* Explanation of symbols for main parts of the drawings

3: inlet port 7: outlet port

13: rear panel 33: lower front panel

34: lower panel motor 100: power supply means

102: operation operation means 104: control means

106: room temperature sensing means 108: panel motor driving means

110: wind direction motor drive means 112: compressor drive means

114: fan motor driving means 116: display means

The present invention relates to an air conditioner operation control apparatus and method for selectively opening and closing a front panel having an intake port according to an operation mode (cooling, heating, dehumidification, blowing operation, etc.) to increase air conditioning efficiency.

In the conventional air conditioner, as shown in FIG. 1, a front panel 5 having a plurality of inlets 3 through which indoor air is sucked is installed on the front of an indoor main body (hereinafter, referred to as a main body). In addition, a discharge port 7 is formed at the front lower portion of the main body 1 to discharge the air sucked through the suction port 3 and heat-exchanged with cold or warm air to the room.

In addition, the discharge port 7 is provided with a wind vane 9 for adjusting the direction of the air discharged to the room through the discharge port 7 up and down, the operation mode of the air conditioner on the right side of the discharge port (7) (Automatic, cooling, dehumidification, blowing, heating, etc.) and a key input unit 11 for controlling the start / stop of operation and the amount of air and the direction of the air discharged through the discharge port 7.

In addition, the outside of the front panel 5 is fixed to the rear panel 13 that supports the front panel 5 and protects the interior.

FIG. 2 is a side cross-sectional view of FIG. 1, and the same parts as in FIG. 1 are denoted by the same reference numerals, and redundant description thereof will be omitted.

As shown in FIG. 2, inside the front panel 5, a heat exchanger 15 is installed inside the front panel 5 to heat-exchange the indoor air sucked through the suction port 3 to cold or warm air by evaporative latent heat of the refrigerant. The blower which rotates to suck the indoor air through the suction port 3 at the bottom of the heat exchanger 15 and to discharge the air heat-exchanged in the heat exchanger 15 to the room through the discharge port 7. A fan 17 (hereinafter referred to as an indoor fan) is provided.

The duct member 19 is installed inside the main body 1 to guide the flow of air sucked through the suction port 3 and discharged to the discharge port 7.

On the other hand, reference numeral 21 is to adjust the gap between the lower end of the heat exchanger 15 and the indoor fan 17 so as to suppress the noise caused by the static pressure (for example, vortex phenomena of air) generated therebetween. The space drain is installed on the lower side of the heat exchanger 15 via the rear panel 13.

In the air conditioner configured as described above, when the user operates the remote controller or the key input unit 11 to select a desired operation mode and then turns on the operation / stop key (hereinafter referred to as the operation key), the driving of the indoor fan 17 is performed. Accordingly, the indoor air is sucked into the main body 1 through the suction port 3.

The indoor air sucked through the suction port 3 is removed while foreign matters such as dust floating in the indoor air pass through a filter member (not shown), and the indoor air from which foreign matters such as dust is removed passes through the heat exchanger 15. While the latent heat of evaporation of the refrigerant flowing in the heat exchanger 15 is exchanged by cold or warm air.

The air heat-exchanged in the heat exchanger 15 is discharged into the room through the discharge port 7 under the guidance of the duct member 19, and the air discharged through the discharge hole 7 is the wind direction angle of the wind vane 9. According to the wind direction is adjusted up and down to perform the indoor air conditioning.

However, in the conventional air conditioner configured as described above, the front panel 5 forming the grate inlet 3 can be opened and closed manually only when cleaning the filter member installed therein or when checking / repairing the inside of the indoor unit. In addition, since it is always closed during normal cooling and heating operation, the amount of indoor air sucked through the inlet port 3 is constant, so that an efficient air conditioning effect can be obtained according to each operation mode (cooling, heating, dehumidification, blowing operation, etc.). There was no problem.

In addition, since the ability of heat exchanged by the heat exchanger 15 to the indoor air sucked through the suction port 3 is fixed constantly according to the speed of the indoor fan 17, it is desirable to heat and heat the entire room such as cooling or heating operation. In this case, there is a problem that can not control the air flow to a long distance greater than the fan motor performance can not obtain a comfortable air conditioning effect of a large space.

In addition, since the distance between the suction port 3 and the discharge port 7 is close, there is a problem that air flows back from the discharge port 7 and returns to the suction port 3 to lower the air conditioning efficiency.

Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to selectively open and close the lower front panel according to the operation mode (cooling, heating, dehumidification, blowing operation, etc.) to increase the intake of indoor air. The present invention relates to an operation control apparatus and method for an air conditioner capable of increasing cooling and heating efficiency.

Another object of the present invention is to provide an air conditioner operation control apparatus and a method thereof, which can open and close a lower front panel to prevent a phenomenon in which air flows back from the discharge port and returns to the suction port.

In order to achieve the above object, the operation control apparatus of an air conditioner according to the present invention includes a rear panel supporting a front panel having an intake port, a heat exchanger for heat-exchanging indoor air sucked through the intake port, and heat exchanged by the heat exchanger. An air conditioner having a discharge port for discharging air and an indoor fan for sucking indoor air through the suction port and discharging air heat-exchanged in the heat exchanger to the room through the discharge port, wherein the suction area of the front panel is provided. A lower front panel which is opened and closed by an opening and closing method so as to divide the controller, control means for controlling the opening and closing operation of the lower front panel to adjust the suction amount of indoor air according to an operation mode, and the lower front panel according to the control of the control means. This is a panel motor driving means for driving the panel motor to open and close it according to the operation mode. Characterized in that eojin.

In addition, the operation control method of the air conditioner according to the present invention is a panel motor to adjust the suction amount of the indoor air in accordance with the mode determination step for determining the operation mode selected by the operation operation means and the operation mode determined in the mode determination step. An opening / closing step of opening and closing a lower front panel on which an inlet is formed by outputting a driving pulse, an opening / closing detection step of detecting an open / closed state of the lower front panel by counting the number of pulses output to the panel motor, and according to the operation mode When the lower front panel is opened and closed, the air conditioning operation step of discharging the heat-exchanged air to the room according to the set temperature, the set wind volume and the set wind direction to perform the indoor air conditioning.

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

The same parts as those in the conventional configurations shown in FIGS. 1 and 2 designate the same names and the same reference numerals, and overlapping descriptions are omitted.

As shown in FIG. 3, the suction port 3 formed on the front surface of the main body 1 to suck indoor air has the suction port 3 according to an operation mode (strong, weak, beautiful, silent, turbo operation, etc.). The lower front panel 33 which is selectively opened and closed by an opening and closing method is installed to adjust the amount of indoor air sucked through the upper side, and the upper front panel 31 which is not opened or closed on the upper part of the lower front panel 33. It is fixed to the rear panel 13.

Inside the upper and lower front panels 31 and 33, a filter member 35 is installed to remove foreign substances such as dust floating in the indoor air sucked through the suction port 3.

The lower front panel 33 is hinged to open and close freely up and down by opening and closing on the lower side with respect to the suction area of the rear panel 13, as shown in Figure 3 and 4, the lower side, An inner side of the lower front panel 33 has a lower panel motor 34 which opens and closes the lower front panel 33 to open a lower suction area of the rear panel 13 during cooling and heating operation. 33) is installed at the lower hinge point.

Next, a circuit block diagram for controlling the opening and closing operation of the lower front panel 33 in the air conditioner configured as described above will be described with reference to FIG.

As shown in FIG. 7, 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. ) Is a plurality of air conditioners to select the operation mode (cooling, heating, dehumidification, blowing operation, etc.) and the amount of air discharged through the discharge port 7 and a desired temperature (hereinafter referred to as Ts: set temperature). In addition to a function key, the key input unit 11 is provided with a driving / stop key (hereinafter referred to as an operation key) to turn on / off the operation of the air conditioner, and infrared rays by key operation of a remote controller (not shown). It consists of the signal receiving part 12 which receives a signal.

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 / stop signal input by the operation operation unit 102. A microcomputer for controlling the overall operation of the air conditioner according to the present invention, wherein the control means 104 controls the indoor air according to the operation mode (cooling, heating, dehumidification, blowing operation, etc.) selected by the driving operation means 102. The opening and closing operation of the lower front panel 33 to control the suction amount of the.

The indoor temperature detecting means 106 is sucked through the inlet port 3 to control 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 indoor air is sensed, and the panel motor driving means 108 measures the amount of entry and exit of the indoor air according to the operation mode (cooling, heating, dehumidification, blowing operation, etc.) selected by the driving operation means 102. The control unit 104 drives and controls a panel motor 34 (for example, a stepping motor) that opens and closes the lower front panel 33 to open and close the lower suction area by receiving a pulse signal output from the control means 104.

In addition, the wind direction motor driving means 110 from the control means 104 to adjust the direction of the air discharged through the discharge port 7 up and down in accordance with the wind direction set by the user operation means 102; In response to the output pulse signal, the wind direction motor 111 (for example, the stepping motor) is driven and controlled, and the compressor driving unit 112 sets the temperature Ts set by the user by the driving operation unit 102 and the The compressor 113 is driven and controlled by receiving a control signal output from the control means 104 according to the difference of the room temperature Tr sensed by the room temperature sensing means 106.

The fan motor driving unit 114 receives a control signal output from the control unit 104 to blow the air heat-exchanged by the heat exchanger 15 into the room, and controls the rotation speed of the indoor fan motor 115 to control the rotation speed of the indoor fan motor 115. The fan 17 is driven, and the display means 116 sets the operation mode (cooling, heating, dehumidification, blowing operation, etc.) input by the driving operation means 102 under the control of the control means 104. The temperature Ts and the room temperature Tr are displayed as well as the operation state of the air conditioner.

Hereinafter, the operation control device of the air conditioner configured as described above and the operational effects of the method will be described.

8A and 8B are flowcharts showing the operation control operation procedure of the air conditioner according to the present invention. In FIGS. 8A and 8B, S denotes a step.

As an initial condition for describing the operation of the present invention, it is assumed that the upper front panel 31 is closed in a fixed state, and the lower front panel 33 is closed.

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, the user inputs the desired operation mode (cooling, heating, dehumidification, blowing operation, etc.) and the set temperature (Ts) of the desired air conditioner by operating the key input unit 11 provided on the remote controller or the control panel. When is pressed, an operation selection signal and an operation start signal (hereinafter referred to as an operation signal) are input to the control means 104 from the operation operation means 102 which is the key input unit 11 and the signal reception unit 12.

Accordingly, in step S2, the control means 104 determines whether the driving signal is input from the driving operation means 102, and if the driving signal is not input (NO), while maintaining the air conditioner in the operating standby state. The operation of step S2 or less is repeated.

As a result of the discrimination in step S2, when an operation signal is input (YES), the process proceeds to step S3 and the control means 104 determines whether the operation mode input by the operation operation means 102 is cooling or heating operation. In the case of cooling or heating operation (YES), the control means 104 advances the driving pulse for opening the lower front panel 33 so that the intake amount of the indoor air increases in accordance with the cooling or heating operation. Output to the panel motor drive means (108).

Therefore, the panel motor driving means 108 receives the driving pulse output from the control means 104 and drives the panel motor 34 so that the lower front panel 33 is rotated downward by 90 ° by the opening and closing method so as to be horizontal. By stopping so as to open the suction area of the lower end of the rear panel (13).

At this time, in step S5, the control means 104 determines the number of pulses output when the panel motor 34 is driven to determine whether the lower front panel 33 is opened.

This is because, since the number of pulses when the lower front panel 33 reaches the open completion position (that is, the downward rotation at 90 °) is set in advance in the control means 104, the drive pulse output from the control means 104. By counting the number of the built-in counter to determine whether the lower front panel 33 is open.

As a result of the discrimination in step S5, when the lower front panel 33 is not open (NO), the process returns to the step S4 and the panel motor (down) rotates downward by 90 ° until the panel motor ( Continue to drive 34).

On the other hand, as a result of the discrimination in step S5, when the lower front panel 33 is opened (YES), it is determined that the lower front panel 33 is rotated downward by 90 °, and the process proceeds to step S6. The driving means 108 stops the driving of the panel motor 34 under the control of the control means 104 to complete the opening operation of the lower front panel 33.

That is, as shown in FIG. 6, when the upper front panel 31 is closed and the lower front panel 33 is opened, a small amount of indoor air is sucked into the suction port 3 formed in the upper front panel 31. In addition, since a large amount of indoor air is sucked into the suction area of the lower end of the rear panel 13, an amount of indoor air required for cooling or heating operation is sucked, so that an efficient air conditioning operation can be performed.

Subsequently, in step S7, the fan motor driving means 114 controls the rotation speed of the indoor fan motor 115 under the control of the control means 104 to drive the indoor fan 17.

When the indoor fan 17 is driven, the indoor air begins to be sucked into the main body 1 through the suction area 3 of the upper front panel 31 and the lower suction area of the rear panel 13. The temperature Tr of air is sensed by the indoor temperature detecting means 106.

Accordingly, in step S8, 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 113 is a driving condition. Determine.

The driving condition of the compressor 113 is a case in which the room temperature Tr sensed by the room temperature sensing means 106 is greater than the temperature Ts set by the user during the cooling operation. The room temperature Tr sensed by the room temperature detecting means 106 is smaller than the temperature Ts set by the user.

As a result of the discrimination in step S8, if it is not the driving condition of the compressor 113 (NO), the flow returns to the step S7 and repeatedly performs the operation of step S7 or below while continuing to detect the room temperature Tr. In the case of the driving condition of the compressor 113 (YES), the control means 104 determines the operating frequency of the compressor 113 according to the difference between the room temperature Tr and the set temperature Ts. The control signal for driving the compressor 113 is output to the compressor driving means 112.

Therefore, the compressor driving means 112 drives the compressor 113 according to the operating frequency determined by the control means 104.

When the compressor 113 is driven, the indoor fan 17 is driven while the indoor fan 17 is driven, and the indoor air is sucked into the main body 1 through the suction port 3 and suspended in the indoor air sucked through the suction port 3. Foreign matter such as dust is removed while passing through the filter member 35, and the indoor air from which foreign matter such as dust is removed by the filter member 35 flows into the heat exchanger 15 while passing through the heat exchanger 15. Heat exchanged by cold air by latent heat of evaporation of refrigerant.

The air heat-exchanged by the cold air in the heat exchanger (15) is discharged into the room through the discharge port (7) under the guidance of the duct member (19), the air discharged through the discharge port (7) of the wind vane (9) Indoor air conditioning is performed by adjusting the wind direction up and down according to the wind direction angle.

In the normal operation of the air conditioner as described above, in step S11, it is determined whether the operation stop signal is input by turning off the operation key of the operation operation means 102, and when the operation stop signal is not input (when NO). Returning to step S11, the normal operation is continued, and the operation of step S11 or less is repeatedly performed.

As a result of the discrimination in step S11, when the operation stop signal is input during normal operation (YES), the control means 104 controls to stop the compressor 113 and the indoor fan motor 115 in the case of YES. The signal is output to the compressor driving means 112 and the fan motor driving means 114.

Accordingly, the compressor driving means 112 stops the compressor 113 under the control of the control means 104, and the fan motor driving means 114 controls the indoor fan motor 115 under the control of the control means 104. To stop the driving of the indoor fan 17.

Subsequently, in step S13, the control means 104 outputs a driving pulse to the panel motor driving means 108 for closing the lower front panel 33 which is open for the operation mode (cooling or heating operation).

Accordingly, the panel motor driving means 108 receives the driving pulse output from the control means 104 and drives the panel motor 34 so that the lower front panel 33 is pivoted upward by 90 ° by the opening and closing method. By stopping vertically, the entire suction area of the upper and lower ends of the rear panel 13 is closed.

At this time, in step S14, the control means 104 determines whether the lower front panel 33 is closed by counting the number of pulses output when the panel motor 34 is driven.

This is because, since the number of pulses when the lower front panel 33 reaches the closed completion position (that is, the downward rotation at 90 °) is set in advance in the control means 104, the drive pulse output from the control means 104. By counting the number of to determine whether the lower front panel 33 is closed.

As a result of the discrimination in step S14, when the lower front panel 33 is not closed (NO), the process returns to the step S13, and the panel motor (until the lower front panel 33 is rotated upward by 90 ° and closed). Continue to drive 34).

On the other hand, as a result of the determination in step S14, when the lower front panel 33 is closed (YES), it is determined that the lower front panel 33 is rotated upward by 90 degrees, and proceeds to step S15 to the panel motor. The driving means 108 receives the driving pulse output from the control means 104 to stop the driving of the panel motor 34 to complete the closing operation of the lower front panel 33.

That is, as shown in FIG. 5, when both the upper and lower front panels 31 and 33 are closed, the indoor air is sucked only through the intake port 3 formed in the upper and lower front panels 31 and 33.

Subsequently, in step S16, the control means 104 returns to the step S2 while repeatedly maintaining the air conditioner in the operation standby state until the operation signal is input again by the driving operation means 102, and repeats the operation of step S2 or less. do.

On the other hand, if the determination result in step S3 is not the cooling or heating operation (NO), it is determined that the blowing or dehumidification operation, and the control means 104 determines that the blowing or dehumidifying operation is independent of the cooling capacity. Therefore, the control signal for driving the indoor fan 17 is output to the fan motor driving means 114 in the state in which the lower front panel 33 is closed.

Accordingly, the fan motor driving means 114 returns to the step S2 while driving the indoor fan 17 by controlling the rotation speed of the indoor fan motor 115 under the control of the control means 104 to perform the operation of step S2 or less. Repeat

According to the operation control apparatus and method of the air conditioner according to the present invention as described above, by selectively opening and closing the lower front panel according to the operation mode (cooling, heating, blowing, dehumidification, etc.) By adjusting according to the operation mode, it is possible to increase the cooling and heating efficiency, and to open and close the lower front panel to prevent the phenomenon of air flowing back from the discharge port to return to the suction port.

Claims (7)

The rear panel 13 supporting the front panel 5 having the inlet port 3 formed thereon, a heat exchanger 15 for exchanging indoor air sucked through the inlet port 3, and the heat exchanger 15 A discharge port 7 for discharging the heat-exchanged air, and an indoor fan that sucks indoor air through the suction port 3 and simultaneously discharges air heat-exchanged in the heat exchanger 15 to the room through the discharge port 7 An air conditioner (17) comprising: a lower front panel (33) opened and closed by an opening and closing manner to divide the suction area of the rear panel (13), and the lower portion to adjust the suction amount of indoor air according to the operation mode Control means 104 for outputting a driving pulse for controlling the opening and closing operation of the front panel 33, and receives the driving pulse output from the control means 104 to fit the lower front panel 33 to the operation mode To drive the panel motor 34 to open and close. Operation control apparatus of the air conditioner, characterized in that the panel motor drive means (108). The apparatus of claim 1, wherein the lower front panel (33) is selectively opened and closed to adjust an intake amount of indoor air according to an operation mode. The apparatus of claim 1, wherein the control unit (104) determines the opening / closing state of the lower front panel (33) by counting the number of output driving pulses. The apparatus of claim 1, wherein the panel motor (34) is a stepping motor rotating in accordance with a driving pulse output from the control means (104). A mode determination step for determining the operation mode selected by the operation operation means 102 and a driving pulse to the panel motor 34 to output the driving pulse to adjust the suction amount of the indoor air according to the operation mode determined in the mode determination step. 3) the opening and closing step of opening and closing the lower front panel 33, the opening and closing detection step of detecting the opening and closing state of the lower front panel 33 by counting the number of pulses output to the panel motor 34, and the operation When the lower front panel 33 is opened and closed according to the mode, the air conditioner operation step of discharging the heat-exchanged air into the room according to the set temperature, the set wind volume and the set wind direction to perform the indoor air conditioning Operation control method. 6. The method of controlling an air conditioner according to claim 5, wherein if it is determined that the cooling / heating operation is selected in the mode discrimination step, the lower front panel (33) is opened to increase the suction amount of indoor air. 6. The method of controlling an air conditioner according to claim 5, wherein the lower front panel is closed when it is determined that the blowing / dehumidifying operation is selected in the mode determining step.