KR100187247B1 - Open and shut apparatus for outlet of airconditioner - Google Patents

Abstract

The present invention relates to a discharge opening and closing device of the air conditioner that can realize a long distance air conditioning by adjusting the wind speed of the discharged air, and to control the control means, and to control the wind speed of the air discharged through the discharge opening A driving motor means for inputting a key signal, a door motor driving means for driving a door motor by receiving a control signal output from the control means to adjust the opening state of the discharge port according to the key signal input by the driving operation means; And an opening / closing sensing means for detecting the opening / closing state of the discharge opening when the discharge door is driven by driving the door motor, and changing the opening state of the discharge opening to control the wind speed of the air discharged through the discharge opening. Improve air conditioning

Description

Discharge port switchgear of air conditioner and its 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.

Figure 5 is a control block diagram of the discharge opening and closing device of the air conditioner according to an embodiment of the present invention.

6 (a) and 6 (b) are flowcharts showing the operation procedure of the discharge opening and closing 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: door motor driving means 50: door opening and closing detection means

60: compressor driving means 61: compressor

70: fan motor driving means 71: indoor fan motor

80: display means

The present invention relates to a discharge opening and closing device and method of an air conditioner capable of realizing a long distance air conditioning by adjusting the wind speed of the discharged air.

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.

However, in such a method, the air velocity of the air discharged through the discharge port during the operation of the air conditioner is fixed at a constant speed according to the rotational speed of the fan motor, so that the air flow cannot be controlled to a long distance beyond the fan motor performance. There was a problem in that a comfortable coordination effect of a large space could not be obtained.

Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to change the open state of the discharge port to adjust the air velocity of the air discharged through the discharge port can increase the air-conditioning effect of a long distance An air conditioner discharge opening and closing device and a method thereof are provided.

In order to achieve the above object, the discharge opening and closing device of the air conditioner according to 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 air exchanged by the indoor heat exchanger. An air conditioner having a discharge port for discharging, and a discharge port door for opening and closing the discharge port to prevent the inflow of dust or foreign matter through the discharge port, the control means and a key to adjust the wind speed of the air discharged through the discharge port A door motor driving means for driving a door motor by receiving a control signal outputted from the control means so as to change the opening state of the discharge port in accordance with a key signal inputted by the driving operation means; The soil when the discharge port door is moved by driving the door motor. Characterized in that the opening and closing detection means for detecting the opening and closing state of the exit.

In addition, the discharge opening and closing method of the air conditioner according to the present invention is the discharge opening and closing step of opening and closing the discharge opening by driving the discharge door door in accordance with the operation and stop signal input by the operating operation means, and the wind speed control by the operation operation means A wind speed control judging step for judging whether or not the wind speed is selected; Characterized in that the opening and closing detection step of detecting the opening and closing state of the.

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 an air conditioner, and the front surface of the main body 1 forms an exterior of the indoor unit and operates at a predetermined position. The cover member 2 provided with the operation 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, 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 changing the open state of the discharge port in the air conditioner configured as described above will be described with reference to FIG.

As shown in FIG. 5, the DC power supply means 20 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. 25 is provided with a plurality of function keys (artificial intelligence, cooling, heating, cleaning, reserved operation, stop, etc.) to input the operating conditions of the air conditioner desired by the user, as well as turn on / off the operation of the air conditioner. And a wind speed control key for adjusting the wind speed of the air discharged through the discharge port.

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. The microcomputer controls the overall operation of the air conditioner according to the operation stop signal.

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 door motor driving means 40 receives a control signal output from the control means 30 when the driving start signal and the driving stop signal are input by the driving operation means 25. The door motor 12 is drive-controlled so as to move the discharge port door 8 which opens and closes the discharge port 4 up and down.

In addition, the door opening / closing detecting means 50 detects whether the discharge opening 4 is opened or closed according to the opening / closing position of the discharge opening door 8 which is moved up and down by the door motor driving means 40 and the control means 30. The compressor driving means 60 is connected 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. In response to the control signal output from the control means 30 to drive control the compressor (61).

In addition, the fan motor driving means 70 receives the control signal output from the control means 30 to blow the air heat-exchanged by the indoor heat exchanger 5 to the room to determine the rotation speed of the indoor fan motor 71. Control to drive the indoor fan (6), and 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). Of course, it displays the operating state of the air conditioner.

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

6 (a) and 6 (b) are flow charts showing the operation procedure of the discharge opening and closing control of the air conditioner according to the present invention, where S is a step in FIGS. 6 (a) and 6 (b). (STEP) is displayed.

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, the 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, when the user operates the operation operation means 25 to input the desired operating condition (cooling, heating, dehumidification, cleanness, etc.) and the set temperature (Ts) of the air conditioner, and then turn on the operation key, the operation operation means From 25, an operation command and an operation start signal (hereinafter referred to as an 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 40, the door motor 12 is driven in the forward direction as shown in FIG. 4E by driving the door motor 12 under the control of the control means 30. The pinion gear 14 coupled to the shaft 12a of the door motor 12 interlocks with it and rotates downward along the rack gear 16 to operate the discharge port door 8 downward to open the discharge port 4. Let's do it.

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 detecting 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 is continuously driven until the discharge port door 8 is fully opened by returning to the step S3. When the discharge opening 4 is completely opened (YES), the process proceeds to step S5, and the door motor driving means 40 stops driving the door motor 12 under the control of the control means 30, thereby discharging the door opening ( 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 driving operation means 25, thereby applying 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 process returns to the step S6 and repeatedly performs the operation of step S6 or less while continuing to sense 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 driving 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) into the room through the discharge port (4) to perform the normal operation to perform the indoor air conditioning

When the wind speed control key of the driving operation means 25 is turned on during the normal operation of the air conditioner as described above, the wind speed adjustment signal is input to the control means 30 from the driving operation means 25.

Accordingly, in step S10, the control means 30 determines whether the wind speed control signal has been input from the driving operation means 25, and returns to the step S9 when the wind speed control signal is not input (NO). Continue normal operation.

As a result of the discrimination in step S10, when the wind speed control signal is input during normal operation (YES), the flow advances to step S11, and the control means 30 determines whether the wind speed selected by the user is one, two or three. The control signal is output to the door motor driving means 40 so as to change the open state of the discharge port 4 according to the wind speed.

Therefore, in the door motor driving means 40, when the wind speed selected by the user is one stage, as shown in FIG. 4 (b), the door motor 12 is driven backward by driving the door motor 12. The pinion gear 14 coupled to the shaft 12a of the door motor 12 rotates upward along the rack gear 16 to operate the discharge port door 8 upward to operate the discharge port 4. Closes according to the selected wind speed.

When the wind speed selected by the user is two stages, the door motor driving means 40 drives the door motor 12 as illustrated in FIG. 4C, and when the wind speed selected by the user is three stages. As shown in FIG. 4 (d), the door motor 12 is driven.

Subsequently, in step S12, the position of the discharge opening door 8 moving upward by the drive of the door motor 12 is sensed by the door opening and closing detecting means 50, and the control means 30 determines the door opening and closing detecting means ( In response to the signal sensed by 50), it is determined whether the discharge port 4 is opened in accordance with the wind speed.

As a result of the discrimination in step S12, when the discharge port 4 is not opened for the wind speed (NO), the flow returns to the step S11 to continue driving the door motor 12, and the discharge port 4 is driven by the wind speed. If it is properly opened (YES), the process proceeds to step S13, where the door motor driving means 40 stops the drive of the door motor 12 under the control of the control means 30, thereby changing the open state of the discharge port 4 to wind speed. To suit your needs.

When the open state of the discharge port 4 is changed according to the wind speed, the indoor heat exchanger 5 exchanges heat and the wind speed of the air discharged through the discharge port 4 varies depending on the open state of the discharge port 4.

If the wind speed selected by the user is one stage, as shown in FIG. 4 (b), since the opening state of the discharge port 4 is small, the discharge port 4 whose air heat exchanged in the indoor heat exchanger 5 is small. As it is discharged through the air, the pressure is strengthened, and the flow of air becomes stronger and faster, which enables pleasant air conditioning in a long distance and a large space.

In addition, as shown in FIG. 4 (d), when the wind speed selected by the user is three stages, since the opening state of the discharge port 4 is large, heat is exchanged in the indoor heat exchanger 5 and discharged through the discharge port 4. Closer air conditioning is possible because the air flow is weaker and slower than in the first stage.

However, even in the case where the wind speed is three stages, as shown in FIG. 4 (e), air conditioning at a far distance is possible, rather than a state in which the discharge port 4 is completely opened.

That is, the air conditioning of the close distance, as well as the long distance is possible by the wind speed control according to the open state of the discharge port (4).

Subsequently, in step S14, it is determined whether the operation stop signal is input to the control means 30 from the operation operation means 25 at the time of operation of the air conditioner. The flow returns to step S13 to continue the operation.

As a result of the discrimination in step S14, when the operation stop signal is input (YES), the flow advances to step S15, whereby the control means 30 supplies a control signal for stopping the compressor 61 and the indoor fan motor 71. Output to drive means 60 and fan motor drive means.

Therefore, the compressor driving means 60 stops the compressor 61 under the control of the control means 30, and the fan motor driving means 70 controls the indoor fan motor 71 under the control of the control means 30. To stop the driving of the indoor fan 6.

Subsequently, in step S16, the control means 30 outputs a control signal for closing the discharge port 4 that is open to the door motor driving means 40.

Accordingly, in the door motor driving means 40, the door motor 12 is driven in the reverse direction as shown in FIG. 4 (a) by driving the door motor 12 under the control of the control means 30. The pinion gear 14 coupled to the shaft 12a of the door motor 12 rotates upward along the rack gear 16 to operate the discharge port door 8 upward to close the discharge port 4. Let's do it.

Subsequently, in step S17, the position of the discharge opening door 8 moving upward by the drive 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 detecting means ( The signal sensed by 50 is input to determine whether the discharge port 4 is completely closed.

As a result of the determination in step S17, 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 S18, where the door motor driving means 40 stops driving the door motor 12 under the control of the control means 30, thereby discharging the door Complete the closing operation of 8).

Subsequently, in step S19, 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.

As described above, according to the discharge opening and closing device and the method of the air conditioner according to the present invention, the air conditioning effect of a long distance can be increased by changing the open state of the discharge opening and controlling the wind speed of the air discharged through the discharge opening. It has an outstanding effect.

Claims (2)

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 opening door for opening and closing the discharge opening and a door opening and closing sensor for detecting the opening and closing state of the discharge opening according to the opening and closing position of the discharge opening, the wind speed control to control the wind speed of the air discharged through the discharge opening A control means for outputting a wind speed control key for inputting a signal, and a control signal for changing the opening degree of the discharge port door according to the wind speed when the wind speed control signal is input in accordance with the operation of the wind speed control key; The door motor is changed to change the opening degree of the discharge door according to a control signal. Copper discharge port door opening and closing apparatus of an air conditioner which is characterized by being a motor driving means for. A signal discrimination step for determining whether the operation and stop signals have been input from the operation operation means, and if it is determined that the operation and stop signals have been input at the signal discrimination step, the door motor is driven in accordance with a control signal from the control means to open and close the discharge door And a wind speed adjusting step for determining whether the wind speed control signal has been inputted from the driving operation means, and if the wind speed control signal is input in the wind speed control signal discrimination step, the door motor is driven to And a wind speed control step of changing an opening degree, and an opening / closing detection step of detecting an opening / closing state of the discharge port door moving in accordance with the driving of the door motor.