KR100191510B1 - A dehumidifying device and controlling method of an air conditioner - Google Patents

Abstract

The present invention relates to a dehumidifying apparatus of an air conditioner for removing odors caused by moisture in an indoor unit, and a control method thereof. The present invention relates to a driving operation means for inputting an operation and stop signal of an air conditioner, and the operation operation means. Humidity sensing means for sensing the humidity of the indoor heat exchanger when the operation stop signal is input by the control unit, and control means for controlling the dehumidification operation by judging the humidity inside the indoor unit according to the humidity of the indoor heat exchanger detected by the humidity sensing means. And a fan motor driving means for controlling the indoor fan to remove moisture in the indoor unit according to the control of the control means, while removing moisture inside the indoor unit to remove unpleasant odors discharged during operation, while providing a pleasant air conditioning. There is an effect that can be obtained.

Description

Dehumidifier of air conditioner and control method

1 is a perspective view showing an air conditioner in a state in which a discharge port is closed according to an embodiment of the present invention.

2 is a perspective view showing an air conditioner in a state where an outlet is open according to an embodiment of the present invention.

3 is a schematic side cross-sectional view of an air conditioner according to an embodiment of the present invention.

Figure 4 is an operating state diagram showing the discharge opening and closing state of the air conditioner according to an embodiment of the present invention.

5 is a control block diagram of a dehumidifier of an air conditioner according to an embodiment of the present invention.

6A and 6B are flowcharts showing the operation procedure of the dehumidification control of the air conditioner according to the present invention.

* Explanation of symbols for main parts of the drawings

3: inlet port 4: discharge port

5: indoor heat exchanger 6: indoor fan

8: outlet port door 12: door motor

20: DC power supply means 25: operation operation means

30: control means 35: room temperature detection means

40: humidity detection means 45: door motor drive means

50: door opening and closing detection means 60: compressor driving means

61 compressor: fan motor driving means

71: indoor fan motor 80: display means

The present invention relates to a dehumidifying apparatus of an air conditioner for removing odor generated by moisture inside an indoor unit, and a control method thereof.

In general, the air conditioner according to the related art is equipped with a discharge port door for opening and closing the discharge port for discharging the heat exchanged air in the indoor heat exchanger to prevent the inflow of dust or foreign substances in the room during operation standby air conditioning operation of the air conditioner When the operation stop signal is input after the time or air conditioning operation, the compressor and the fan motor are turned off and the discharge port door is moved upward to close the discharge port.

On the other hand, when the operation start signal is input during the operation standby of the air conditioner, the discharge port door is moved downward to open the discharge port as the door motor is driven.

At this time, if the photo sensor attached to the upper and lower predetermined positions of the discharge port detects the opening and closing state of the discharge port, the control unit determines whether the discharge port door is opened or closed according to the open / close detection signal (high or low level signal) detected by the photo sensor. To control the normal operation and standby operation of the air conditioner.

In this manner, however, when the operation stop signal is input, the discharge port is completely closed while stopping all operation operations of the air conditioner. A large amount of dew (humidity) is formed in the air, and dirt or impurities are adsorbed on the moisture, and bacteria and molds grow to generate an unpleasant odor.

Thus, when the air conditioner is re-operated, there is a problem in that an unpleasant odor generated by moisture is discharged into the room while the discharge port is opened.

Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to remove the moisture inside the indoor unit to remove the unpleasant odor discharged during operation, while being able to obtain a pleasant air conditioning effect To provide a dehumidifying apparatus and a control method thereof.

In order to achieve the above object, the air conditioner dehumidification apparatus of the present invention includes an intake port for sucking indoor air, an indoor heat exchanger for exchanging indoor air sucked through the intake port, and discharged heat exchanged by the indoor heat exchanger. An air conditioner having a discharge port, and a discharge door to open and close the discharge port so as to prevent dust or foreign matter from flowing through the discharge port, comprising: an operation operation means for inputting an operation and stop signal of the air conditioner; Humidity sensing means for detecting the humidity of the indoor heat exchanger when the operation stop signal is input by the operation operation means, and the humidity inside the indoor unit according to the humidity of the indoor heat exchanger detected by the humidity sensing means to dehumidify operation Control means for controlling the, and according to the control of the control means to remove the moisture inside the indoor unit It is characterized by being a fan motor driving means for driving and controlling the indoor fan.

In addition, the dehumidification control method of the air conditioner according to the present invention comprises a discharge opening and closing step of opening and closing the discharge port by driving the discharge port door according to the operation and stop signal input by the operation operation means, and the operation stop signal by the operation operation means. Humidity determination step to detect the humidity of the indoor heat exchanger by detecting the humidity of the indoor heat exchanger when the input of the input, and when it is determined that the moisture inside the indoor unit in the humidity determination step, the indoor fan is driven to remove the moisture inside the indoor unit. It is characterized by consisting of a dehumidification step to remove.

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

As shown in Figs. 1 to 3, reference numeral 1 denotes an indoor main body (hereinafter referred to as a main body) of the air conditioner, and the front surface of the main body 1 forms the exterior of the indoor unit and operates at a predetermined position. The cover member 2 provided with the means 25 is fixed.

In addition, an inlet port 3 through which the indoor air is sucked is formed in the lower part of the front surface of the main body 1, and a discharge port 4 that discharges heat-exchanged air (cold or warm air) into the upper part of the front surface of the main body 1. Is formed, and the air discharge port 4 is equipped with a wind direction up and down control plate 411 and a wind direction left and right control plate 421 for controlling the direction of the air discharged into the room.

In addition, a linear indoor heat exchanger (5) is installed at the center of the main body (1) so as to heat-exchange the indoor air sucked through the suction port (3) with cold or warm air by evaporative latent heat of the refrigerant. An indoor fan in the lower portion of the indoor heat exchanger (5) to suck the indoor air through the suction port (3) and discharge the air heat exchanged in the indoor heat exchanger (5) to the room through the discharge port (4) ( 6) is fitted.

In addition, between the indoor heat exchanger 5 and the indoor fan 6, the humidity sensor 40 for detecting the humidity (Hp) of the indoor heat exchanger (5) is changed by the moisture formed in the main body (1) It is installed.

In addition, in the drawing, the discharge port 4 is opened inside the discharge port 4 so that the air heat exchanged from the indoor heat exchanger 5 is smoothly supplied to the room during the operation of the air conditioner. During operation, the discharge port door 8 which closes the discharge port 4 in order to prevent the inflow of dust or foreign substances into the main body 1 through the discharge port 4 and to have a beautiful appearance, is upwardly or It is mounted to move downwards.

On the other hand, the drive means for driving the discharge port door 8 upward or downward is fixed by the support member 10 and the support member 10 fixed to the upper portion of the indoor unit 1, the discharge port door 8 Is coupled to the shaft 12a of the door motor 12 so as to be rotatable by the power generated by the door motor 12 and the door motor 12 generating power for moving upward or downward). Rack for converting the pinion gear 14 and the rotational movement of the pinion gear 14 to linear movement so as to move the discharge port door 8 upward or downward in association with the pinion gear 14 and the rotation of the pinion gear 14. The gear 16 is comprised.

Next, a control block diagram for removing moisture inside the indoor unit configured as described above will be described with reference to FIG.

As shown in FIG. 5, the DC power supply unit 20 converts the commercial AC voltage supplied from the AC power supply terminal (not shown) into a predetermined DC voltage required for the operation of the air conditioner, and outputs the operation AC. 25) has a plurality of function keys (artificial intelligence, cooling, heating, clean, reserved operation, stop, etc.) to input the operating conditions of the air conditioner desired by the user, as well as the operation start signal of the air conditioner An operation key is provided to input an operation stop signal.

In addition, the control means 30 receives the DC voltage output from the DC power supply means 20 to initialize the air conditioner, as well as the operation selection signal and the operation start / input inputted by the operation operation means 25. A microcomputer that controls the overall operation of the air conditioner according to the operation stop signal, wherein the control means 30 depends on the humidity Hp of the indoor heat exchanger 5 detected by the humidity sensor 40. By determining whether moisture is formed in the main body 1, the driving of the indoor fan 6 is controlled to remove the moisture in the main body 1.

The indoor temperature detecting means 35 is sucked through the intake port 3 to control the indoor temperature to the temperature Ts set by the user by the driving operation means 25 to perform the cooling and heating operation of the air conditioner. The temperature Tr of the indoor air is sensed, and the humidity detecting means 40 changes the indoor heat exchanged by the operation stop signal by the driving operation means 25 and the moisture formed in the main body 1 upon input. Humidity sensor for detecting the humidity (Hp) of the device (5).

In addition, the door motor driving means 45 opens and closes the discharge port 4 by receiving a control signal output from the control means 30 when the driving start signal and the driving stop signal by the driving operation means 25 are input. The door motor 12 is driven and controlled to move the discharge port door 8 up and down, and the door opening / closing detecting means 50 of the discharge door door 8 is moved up and down by the door motor driving means 45. It detects whether the discharge port 4 is opened or closed according to the opening and closing position and outputs it to the control means 30.

In addition, the compressor driving means 60 is controlled according to the difference between the temperature Ts set by the user by the driving operation means 25 and the room temperature Tr sensed by the room temperature sensing means 35. The control means 30 receives the control signal output from the means 30 and drives the compressor 61, and the fan motor driving means 70 blows the air heat-exchanged by the indoor heat exchanger 5 into the room. The indoor fan 6 is driven by controlling the rotation speed of the indoor fan motor 71 by receiving a control signal output from the indoor fan motor 71.

In addition, in the drawing, the display means 80 displays the operating conditions and the set temperature Ts set by the user by the driving operation means 25 under the control of the control means 30, as well as the air. Displays the operating status of the unit.

Hereinafter, the operation and effect of the dehumidifier and the control method of the air conditioner configured as described above will be described.

6A and 6B are flowcharts showing the operation procedure of the dehumidification control of the air conditioner according to the present invention. In FIGS. 6A and 6B, S denotes a step.

As an initial condition for explaining the operation of the present invention, it is assumed that the discharge port 4 is closed.

First, when power is applied to the air conditioner, the DC power supply unit 20 converts a commercial AC voltage supplied from an AC power supply terminal (not shown) into predetermined DC voltages required for driving the air conditioner, thereby driving circuits and control means. Output to 30.

Therefore, in step S1, a DC voltage output from the DC power supply means 20 is inputted from the control means 30 to initialize the air conditioner.

At this time, the user inputs the desired operating condition (cooling, heating, dehumidification, cleanness, etc.) and the set temperature (Ts) of the desired air conditioner by operating the operation operation means 25, and presses the operation switch, the operation operation means ( 25, an operation command and an operation start signal (hereinafter referred to as operation signal) are input to the control means 30.

Accordingly, in step S2, the control means 30 determines whether the driving signal is input from the driving operation means 25, and maintains the air conditioner in the operating standby state when the driving signal is not input (NO). The operation of step S2 and below is repeated.

As a result of the discrimination in step S2, when the operation signal is input (YES), the control means 30 proceeds to step S3 and the control means 30 opens a control signal for opening the closed discharge port 4; )

Accordingly, in the door motor driving means 45, the door motor 12 is driven by driving the door motor 12 under the control of the control means 30, as shown in FIGS. The pinion gear 14 coupled to the shaft 12a of the door motor 12 while being driven in the forward direction is rotated downward along the rack gear 16 to operate the discharge port door 8 downward to discharge the discharge port ( Open 4).

Subsequently, in step S4, the position of the discharge opening door 8 moved downward by the driving of the door motor 12 is detected by the door opening and closing detecting means 50, and the control means 30 detects the door opening and closing means ( It is determined whether the discharge port 4 is completely opened by receiving the signal sensed by 50).

As a result of the discrimination in step S4, when the discharge port 4 is not completely opened (NO), the door motor 12 continues to be driven until the discharge port door 8 is completely opened. When the discharge port 4 is completely opened (YES), the process proceeds to step S5, and the door motor driving means 45 stops the drive of the door motor 12 under the control of the control means 30 to discharge the door door ( Complete the opening operation of 8).

Subsequently, in step S6, the fan motor driving means 70 drives the indoor fan 6 by controlling the rotation speed of the indoor fan motor 71 under the control of the control means 30.

When the indoor fan 6 is driven, the indoor air starts to be sucked into the main body 1 through the suction port 3, and at this time, the indoor temperature of the indoor air sucked through the suction port 3 is detected. In the means 35.

Accordingly, in step S7, the indoor temperature Tr sensed by the indoor temperature detecting means 35 is compared with the temperature Ts set by the user to the operation operation means 25 to apply the driving condition of the compressor 61. Determine.

The driving condition of the compressor 61 is a case in which the room temperature Tr sensed by the room temperature sensing means 35 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 35 is smaller than the temperature Ts set by the user.

As a result of the discrimination in step S7, if it is not the driving condition of the compressor 61 (NO), the flow returns to the step S6 and repeats the operation of step S6 or less while continuously detecting the room temperature Tr, In the case of the driving condition of the compressor 61 (YES), the control means 30 determines the operating frequency of the compressor 61 according to the difference between the room temperature Tr and the set temperature Ts. The control signal for driving the compressor 61 is output to the compressor driving means 60.

Therefore, the compressor driving means 60 drives the compressor 61 according to the operating frequency determined by the control means 30, and in step S9 the indoor heat exchanger is adapted to the operating conditions selected by the user by the driving operation means 25. By discharging the air heat-exchanged in (5) to the room through the discharge port (4) to perform the normal operation to perform the air conditioning.

At this time, in step S10, it is determined whether the operation stop signal is input to the control means 30 from the operation operation means 25 during normal operation with the air conditioner, and when the operation stop signal is not input (NO), the step Return to S9 and continue normal operation.

As a result of the discrimination in step S10, when the operation stop signal is input during normal operation (YES), the flow advances to step S11, and the control means 30 supplies the control signal for stopping the compressor 61 to the compressor drive means 60. )

Therefore, the compressor driving means 60 stops the compressor 61 under the control of the control means 30.

Subsequently, in step S12, it is determined whether moisture is formed around the indoor heat exchanger 5, that is, inside the main body 1, by the temperature difference between the internal temperature of the main body 1 and the indoor air heat exchanged in the indoor heat exchanger 5. When the operation of the air conditioner is stopped, the current humidity Hp of the indoor heat exchanger 5 is sensed by the humidity sensing means 40 and output to the control means 30.

Accordingly, in step S13, the current humidity Hp of the indoor heat exchanger 5 sensed by the humidity sensing means 40 is set in the control means 30 to the dehumidification start humidity Hps; To determine whether or not the humidity of piping required to be dehumidified).

As a result of the determination in step S13, when the current humidity Hp is equal to or higher than the dehumidification start humidity Hps (YES), moisture is formed on the surface of the indoor heat exchanger 5 and the inside of the main body 1, thereby causing bacteria, mold, and the like. The control means 30 outputs a control signal for driving the indoor fan 6 to the fan motor driving means 70 to determine that this breeding state is possible, and to remove the moisture inside the main body 1. do.

Accordingly, the fan motor driving means 70 drives the indoor fan 6 under the control of the control means 30 to remove the moisture in the main body 1 and returns to the step S12 to present the current humidity Hp. The operation of step S12 or less is repeated until the dehumidification start humidity Hps is lower.

On the other hand, when the determination result in step S13 indicates that the present humidity Hp is not equal to or higher than the dehumidification start humidity Hps (NO), dehumidification is started on the surface of the indoor heat exchanger 5 and inside the main body 1. It is determined that there is no moisture for forming, and the flow proceeds to step S14 where the control means 30 outputs a control signal for stopping the indoor fan 6 to the fan motor driving means 70.

Therefore, the fan motor driving means 70 stops the driving of the indoor fan 6 by stopping the indoor fan motor 71 under the control of the control means 30.

When the moisture inside the main body 1 is removed by the driving of the indoor fan 6, the control means 30 controls the door motor driving means 45 to close the discharge port 4 which is open in step S15. )

Accordingly, in the door motor driving means 45, the door motor 12 is driven by driving the door motor 12 under the control of the control means 30, as shown in FIGS. The pinion gear 14 coupled to the shaft 12a of the door motor 12 while being driven in the reverse direction is rotated upward along the rack gear 16 to operate the discharge port door 8 upward to discharge the discharge port ( 4) close.

Subsequently, in step S16, the position of the discharge opening door 8 moved upward by the driving of the door motor 12 is detected by the door opening and closing detecting means 50, and the control means 30 detects the door opening and closing means ( The signal sensed by 50 is input to determine whether the discharge port 4 is completely closed.

As a result of the discrimination in step S16, when the discharge port 4 is not completely closed (NO), the door motor 12 is continuously driven until the discharge port door 8 is completely closed. When the discharge port 4 is completely closed (YES), the process proceeds to step S17, and the door motor driving means 45 stops driving the door motor 12 under the control of the control means 30 to discharge the door door ( Complete the closing operation of 8).

Subsequently, in step S18, the control means 30 ends the operation while maintaining the air conditioner in the operation standby state until the operation start signal is input again by the operation operation means 25.

According to the dehumidification apparatus and control method of the air conditioner according to the present invention as described above, it is possible to remove the moisture inside the indoor unit to remove the unpleasant odor discharged during operation, while achieving the optimum air conditioning effect It works.

Claims (3)

An intake port for sucking indoor air, an indoor heat exchanger for exchanging indoor air sucked through the intake port, a discharge port for discharging air exchanged by the indoor heat exchanger, and to prevent dust or foreign matter from entering through the discharge port An air conditioner having a discharge port door for opening and closing the discharge port, comprising: operation operation means for inputting an operation stop signal of the air conditioner, humidity sensing means for sensing humidity of the indoor heat exchanger, and operation operation means A control means for outputting a control signal for driving the indoor fan if the indoor heat exchanger humidity detected by the humidity sensing means is greater than or equal to a predetermined dehumidification start humidity when the operation stop signal is input; The humidity of the indoor heat exchanger is based on the control signal from the control means. Dehumidifier of the air conditioner, characterized in that made of a fan motor driving means for driving the indoor fan until lower. A signal discrimination step for determining whether an operation stop signal is input from the operation operation means, and if it is determined that the operation stop signal is input in the signal discrimination step, the humidity of the indoor heat exchanger is sensed to determine whether or not the dehumidification start humidity set in the control means is higher than or equal to the predetermined dehumidification start humidity. Dehumidification of the air conditioner comprising a humidity discrimination step of determining the humidity and the dehumidification step of removing the humidity in the indoor unit by driving the indoor fan if the humidity of the indoor heat exchanger is determined to be greater than the dehumidification start humidity in the humidity discrimination step Control method. The dehumidification control method of an air conditioner according to claim 2, wherein the humidity judging step determines that moisture is formed inside an indoor unit when the indoor heat exchanger humidity is equal to or higher than a dehumidification start humidity.