KR0125750B1 - On/off outlet method for an air-conditioner - Google Patents

Abstract

The exhaustion hole open/closing apparatus includes a control means, an operation selection means for selecting an air blowing speed changing operation by a user, a door motor driving means having a door motor for open/closing the exhaustion hole by receiving a control signal from the control means according to the air blowing speed changing operation signal selected by the user, a door open/closing detection means for detecting an open/closing state of the exhaustion hole door driven by the door motor driving means, and a fan motor driving means for driving an air fan to blow the air which is heat-exchanged by the control of the control means toward a room. Thus, the dirts or foreign materials is prevented from intruding into the air conditioner from the room during the operation standby mode.

Description

How to open and close the outlet of the air conditioner

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

Figure 1b is a perspective view showing the air conditioner in the discharge opening is open according to an embodiment of the present invention.

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

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

Figure 4 is a control block diagram of the discharge opening and closing device of the air conditioner according to an embodiment of the present invention.

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

6A and 6B are flowcharts showing an operation procedure of opening and closing the discharge port of the air conditioner according to the embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: operation selection means 20: constant voltage means

30: control means 40: door motor driving means

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

70: fan motor driving means

The present invention provides an air conditioner for controlling the wind speed of an air conditioner by changing an open state of the discharge port by controlling a discharge door that opens and closes the discharge port to prevent dust or foreign matter from entering the room during operation of the air conditioner. It relates to a discharge opening and closing method.

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 from the evaporator to prevent the inflow of dust or foreign matter in the room during operation of the air conditioner operation or When the operation off signal is input after the air conditioning operation, a method of closing the discharge port by driving the door motor is used.

In this manner, however, when the air conditioner is operated, the discharge port door is driven downward by the drive of the door motor to open the discharge port, and when the air conditioner is stopped, the discharge port door is driven by the door motor. The wind speed of the air conditioner is determined and changed by the rotation of the fan motor by driving upward to close the discharge port.

Accordingly, since the air flow cannot be controlled at a far distance greater than the fan motor capability, not only air conditioning in a large space can be realized, but power consumption increases accordingly.

Therefore, the present invention has been made to solve the above problems, the object of the present invention is to change the open state of the discharge port by the selection of the variable speed operation key to increase the pressure of the heat exchanged air in the evaporator air flow Since the stronger and faster the air conditioner of a long distance is possible to achieve a more comfortable indoor air conditioning while providing a method for opening and closing the discharge opening of the air conditioner to reduce the power consumption.

In order to achieve the above object, the discharge opening and closing method of the air conditioner according to the present invention is a discharge opening and closing step of closing the discharge port in accordance with the operation of the discharge door door by the door motor so that foreign matter does not flow into the main body during operation of the air conditioner. And a discharge opening opening step of opening the discharge port in accordance with the operation of the discharge door door by the door motor to perform the air conditioning operation when the operation signal is input from the operation selecting means, and an air conditioner when the wind speed variable operation signal is input from the operation selecting means. Characterized in that the wind speed control step of changing the opening state of the discharge port in accordance with the drive of the discharge port door by the door motor to adjust the wind speed 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 2, the cover member 2 is formed on the front surface of the main body 1 to form the appearance of the air conditioner and the driving selection means 10 is disposed at a predetermined position.

In addition, a suction port 3 is formed at the lower front surface of the main body 1, a discharge port 4 is formed at the upper front surface of the main body 1, and the cold air discharged to the room is discharged at the discharge port 4. Wind direction up and down control plate 33 and the wind direction left and right control plate 34 for controlling the direction of the is disposed.

In addition, an evaporator 5 for exchanging indoor air with cold air is disposed at the center of the main body 1, and the lower part of the main body 1 sucks indoor air and at the same time exchanges heat with the evaporator 5. The blowing fan 73 which discharges cold air is attached.

In addition, when the air conditioner is operated on the upper part of the main body 1, the discharge port 4 is opened so that cold air heat-exchanged by the evaporator 5 is smoothly supplied to the room, and when the air conditioner is stopped, In order to prevent dust, foreign substances, etc. from flowing into the main body 1 and to have a beautiful appearance, a discharge port door 6 for closing the discharge port 4 is mounted.

As shown in FIG. 3, a first door opening and closing sensor 51 for detecting a closed state of the discharge opening 6 is attached to the upper right side of the discharge opening 4, and the right side of the discharge opening 4 is attached. A second door opening and closing detection sensor 52 for detecting an open state of the discharge port door 6 is attached to the bottom.

Then, between the first door opening and closing sensor 51 and the second door opening and closing sensor 52, that is, the right center of the discharge port 4, the half opening of the discharge port door 6 to adjust the wind speed of the air conditioner A third door opening and closing sensor 53 for detecting a state is attached.

In this case, when the door motor 41 connected to the main body 1 and supported by the support member 45 is driven by a control signal from a control means described later, the shaft 41a of the door motor 41 is driven. The pinion gear 43 coupled to the pin is interlocked with the pinion gear 43 to rotate upward or downward along the rack gear 44 to move the discharge door 6 up and down to block or open the discharge port 4.

As shown in Figs. 4 to 5, the operation selecting means 10 includes a plurality of functional devices (artificial intelligence, cooling, clean, reserved operation, stop, etc.) to select the operation function of the air conditioner by the user. Is provided, the operation selecting means 10 changes the wind speed of the air conditioner by opening the discharge port 4 until the third door opening / closing sensor 53 detects the discharge door 6. A separate wind speed variable operation key 11 is provided.

The constant voltage means 20 receives a commercial AC voltage from an AC power input terminal (not shown), converts it into a predetermined constant voltage required for the operation of the air conditioner, and outputs the control means 30. In response to the operation selection signal from < RTI ID = 0.0 >) < / RTI > and the constant voltage signal from the constant voltage means 20, the air conditioner is initialized and a control signal for controlling the overall operation is output.

In addition, the door motor driving means 40 receives the control signal from the control means 30 to drive the door motor 41 to open and close the discharge port 4 while moving the discharge door 6 up and down. The door motor driving means 40 includes a driver 31 for receiving and amplifying a control signal from the control means 30, a relay RL1 for receiving a signal amplified by the driver 31, and the relay. The door motor 41 is driven when the RL1 is turned on.

And, the door opening and closing detecting means 50 detects the opening and closing state of the discharge port door 6 driven by the door motor driving means 40 and outputs to the control means 30, the door opening and closing detecting means ( 50 is a first door opening and closing attached to the upper right end of the discharge port 4 to receive the constant voltage signal from the constant voltage means 20 through the resistor (R5, R6) to detect the closed state of the discharge port door (6) It is attached to the lower right end of the discharge port 4 to receive the detection sensor 51 and the constant voltage signal from the constant voltage means 20 through the resistor (R3, R4) to sense the open state of the discharge port door (6) Right center of the discharge port 4 to receive the second door opening and closing sensor 52 and the constant voltage signal from the constant voltage means 20 through the resistors R1 and R2 to change the wind speed of the air conditioner, The first door opening and closing detection sensor 51 and the second door opening and closing detection sensor 52 Attached to consist of a third door opening and closing detecting sensor 53.

The first, second and third door open / close detection sensors 51, 52, and 53 are photocouplers including a light emitting diode (LED) and a phototransistor (PT). The first, second, and third door open / close detection sensors are provided. The opening / closing detection signal detected by the sensors 51, 52, and 53 is input to the input terminals 11, 12, 13 of the control means 30 through the resistors R7, R8, and R9.

In addition, the compressor driving means 60 receives the control signal from the control means 30 and performs the air conditioning operation of the air conditioner according to the difference between the temperature set by the user and the room temperature by the operation selecting means 10. By driving control of the compressor 61 so that the compressor drive means 60 receives the driver signal from the control means 30 and amplifies the driver 31 and the signal amplified by the driver 31. It consists of the relay RL2 which is turned on, and the compressor 61 driven when the relay RL2 is turned on.

In addition, in the drawing, the fan motor driving means 70 receives the control signal from the control means 30 to drive the fan motor 71 to blow the cool air heat exchanged in the evaporator to the room through the discharge port 4. The fan motor driving means 70 includes a driver 31 for receiving and amplifying a control signal from the control means 30, a relay RL3 for receiving a signal amplified by the driver 31, and And a fan mocker 71 driven when the relay RL3 is turned on.

Hereinafter, the effect of opening and closing the discharge port of the air conditioner configured as described above will be described with reference to FIGS. 6A and 6B.

First, when power is applied to the air conditioner, the air conditioner is initialized in step S1.

Subsequently, in step S2, the first door opening / closing detection sensor 51 of the door opening / closing detecting means 51 detects whether the discharge port door 6 is closed and outputs it to the control means 30. To determine this.

As a result of the discrimination in step S2, when the discharge port door 6 is not closed (No), the process proceeds to step S3. In the door motor driving means 40, from the output terminal O1 of the control means 30. The output signal is amplified by the driver 31, and the relay RL1 is turned on by the amplified signal.

Accordingly, as shown in FIGS. 3A to 3C, the pinion gear 43 interlocked while the door motor 41 is driven in the reverse direction is rotated upward along the rack gear 44 to discharge the door. The discharge port 4 is closed by operating (6) upward.

Subsequently, in step S4, if the first door opening / closing sensor 51 detects whether the discharge port door 6 completely closes the discharge port 4 by driving the door motor 41, and outputs it to the control means 30. The control means 30 determines this.

As a result of the discrimination in step S4, when the discharge port door 6 does not completely close the discharge port 4 (No), the flow returns to step S3 to control signals from the control means 30 to the door motor driving means 40. ), The discharge port door 6 is operated upward until the discharge port 4 is completely closed, and if the discharge door 6 completely closes the discharge port 4 (Yes), the process proceeds to step S5. The air conditioner maintains an operation standby state.

Subsequently, in step S6, it is determined by the user from the driving selection means 10 whether the driving signal has been input to the control means 30, and if no driving signal is input (No), the process returns to step S5 and the air is returned. Since the air conditioner operation should be performed when the operating unit is kept in the operation standby state (Yes), in step S7, the control signal output from the output terminal O1 of the control means 30 is outputted to the driver ( And amplifies it, then the relay RL1 is turned on by the amplified signal.

Accordingly, as shown in FIGS. 3A to 3C, the pinion gear 43 interlocked while the door motor 41 is driven in the forward direction is rotated downward along the rack gear 44 to discharge the outlet. The door 6 is operated downward to open the discharge port 4.

Subsequently, in step S8, the second door opening / closing sensor 52 detects whether the discharge port door 6 completely opens the discharge port 4 by driving the door motor 41, and outputs it to the control means 30. The control means 30 determines this.

As a result of the discrimination in step S8, when the discharge port door 6 does not completely open the discharge port 4 (No), the air conditioning operation cannot be performed, and the flow returns to step S7 to control from the control means 30. The discharge port door 6 is operated downward until a signal is input from the door motor driving means 40 to completely open the discharge port 4.

On the other hand, as a result of the determination in step S8, when the discharge port door 6 has completely opened the discharge port 4 (Yes), the air conditioning operation can be performed, so in step S9 a predetermined time (usually about 3 seconds) After the passage, the driver 31 receives the control signal output from the output terminal O3 of the control means 30 and amplifies it. Then, the relay RL3 is turned on by the amplified signal and the fan motor 71 is turned on. Is driven.

Subsequently, in step S10, after the fan motor 71 is driven in step S9, a time is counted by a timer built in the control means 30 to determine whether 3 minutes have elapsed.

As a result of the discrimination in step S10, when the time counted by the timer has not elapsed three minutes (No), the fan motor driving means 70 returns to step S9 until the three minutes elapse. The fan motor 71 is driven by receiving the control signal from the means 30.

On the other hand, if it is determined in step S10 that the time counted by the timer has elapsed for three minutes (Yes), the compressor 61 can be driven even if the compressor 61 is driven. The control signal output from the output terminal O2 of the means 30 is inputted by the driver 31 and amplified, and then the relay RL2 is turned on by the amplified signal to drive the compressor 61.

Subsequently, in step S12, it is determined by the user whether the wind speed variable operation signal is input to the control means 30 from the operation selecting means 10, and when the wind speed variable operation signal is input (Yes), Since the air conditioning of the wide space can be realized by adjusting the wind speed, in step S12, the control signal output from the output terminal O1 of the control means 30 is inputted by the driver 31 and amplified, and then the amplified signal. The relay RL1 is turned on by this.

Accordingly, as shown in FIGS. 3A to 3C, the pinion gear 43 interlocked while the door motor 41 is driven in the reverse direction is rotated upward along the rack gear 44 to discharge the door door ( 6) is operated upward to block the discharge port 4 to a certain degree (for example, about half) to reduce the discharge port 4.

Subsequently, in step S14, the third door opening / closing sensor 53 detects and controls how much the discharge opening 4 blocks the discharge opening 4 by the driving of the door motor 41 to reduce the discharge opening 4. Output to the means 30, the control means 30 determines this.

As a result of the discrimination in step S14, when the discharge port door 6 blocks the discharge port 94 to some extent (Yes), the wind speed of the air conditioner can be increased, so the control signal from the control means 30 is removed in step S15. Is inputted from the compressor driving means (60) and the fan motor driving means (70) to drive the compressor (61) and the fan motor (71) while the heat exchanged in the evaporator (5) is discharged through the small discharge port (4) As the pressure is increased, the air flow becomes stronger and faster.

In step S16, when the air conditioner is operated, it is determined by the user whether the driving off signal is input from the driving selecting means 10 to the control means 30, and if the driving off signal is input (Yes). In step S17, the fan motor driving means 70 receives the control signal from the control means 30 so that the fan motor 71 is turned off.

Subsequently, in step S189, a control signal output from the output terminal O1 of the control means 30 is applied to the door motor driving means 40 to drive the door motor.

Accordingly, as shown in FIGS. 3A to 3C, the pinion gear 43 interlocked while the door motor 41 is driven in the reverse direction is rotated upward along the rack gear 44 to discharge the door. The discharge port 4 is closed by operating (6) upward.

Subsequently, in step S19, the first door opening / closing detection sensor 51 detects whether the discharge port door 6 completely closes the discharge port 4 by driving the door motor 41, and outputs the result to the control means 30. The control means 30 determines this.

As a result of the determination in step S19, when the discharge port door 6 does not completely close the discharge port 4 (No), the door motor 41 returns to step S18 until the discharge port 4 is completely closed. To operate the discharge port door 6 upward, and when the discharge port door 6 completely closes the discharge port 4 (Yes), the process proceeds to step S5 and the operation is terminated while the air conditioner is operated. .

According to the method of opening and closing the discharge port of the air conditioner according to the present invention as described above, by changing the opening state of the discharge port by the selection of the variable speed operation key to increase the pressure of the heat exchanged air in the evaporator to increase the flow of air Because it is faster, air conditioning over long distances is possible, which makes it possible to reduce power consumption while achieving more comfortable indoor air conditioning.

Claims (2)

In order to prevent foreign substances from entering the main body during operation of the air conditioner, the discharge port blocking step of closing the discharge port in accordance with the operation of the discharge motor by the door motor and the door motor to perform the air conditioning operation when the operation signal is input from the operation selection means. The discharge opening step of opening the discharge port according to the driving of the discharge port door and opening the discharge port according to the driving of the discharge door door by the door motor to control the wind speed of the air conditioner when the wind speed variable operation signal is inputted from the operation selecting means. A discharge opening and closing method of an air conditioner, characterized in that the air conditioning step for changing the state. The method of claim 1, wherein when the wind speed variable operation signal in the wind speed adjusting step is re-input, the ejection opening and closing method of the air conditioner is completely opened according to the driving of the ejection opening by the door motor.