KR100187272B1 - Device and method of air flow control for airconditioner - Google Patents

Abstract

The present invention relates to a discharge device of an air conditioner for controlling the wind direction of the discharge air at the same time to open the discharge port to prevent the inflow of dust or foreign matter from the room, and to open and close the discharge port door 51 and At the same time, the operation operation means 102 for inputting the key signal to swing the wind direction up and down control plate 53 up and down, and the opening and closing operation of the discharge port door 51 according to the key signal input by the operation operation means 102 and the Control means 104 for controlling the swing operation of the wind direction up and down control plate 53 and the wind direction up and down control plate 53 while opening and closing the discharge port door 51 under the control of the control means 104. It consists of a door motor driving means 108 for driving the door motor 57, by using the one door motor 57 to drive the discharge port door 51 and the wind direction up and down control plate 53 at the same time to delete the motor It is possible to improve the workability and manufacturing cost savings.

Description

Control Method of Discharge Device of Air Conditioner

1 is a perspective view showing an air conditioner in a state where a discharge port according to the related art is opened.

2 is a perspective view showing an air conditioner in a state where a discharge port according to the related art is closed.

3 is a configuration diagram schematically showing a configuration diagram of a conventional air conditioner.

Figure 4 is a perspective view schematically showing the main components of the air conditioner according to an embodiment of the present invention.

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

6 is a longitudinal sectional view showing an air conditioner in a state where an outlet is open according to an embodiment of the present invention;

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

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

* Explanation of symbols for main parts of the drawings

7: discharge port 51: discharge port door

53: wind up and down control plate 55: support plate

57: door motor 59: interlocking operation member

65 link member 66 rotary link member

67: guide member 68: elastic member

100: power supply means 102: operation operation means

104: control means 106: room temperature detection means

108: door motor driving means 110: door opening and closing detection means

112: compressor driving means 114: fan motor driving means

116 display means

The present invention relates to a discharge device of an air conditioner for controlling the wind direction of the discharged air and at the same time opening the discharge port to prevent the inflow of dust or foreign matter from the room, and a control method thereof.

In the conventional air conditioner, as shown in FIGS. 1 and 2, the suction grill member 5 having a plurality of suction ports 3 through which indoor air is sucked is formed of an indoor main body 1 (hereinafter referred to as a main body). It is provided in the lower part of the front surface, and the discharge port 7 which discharges the air sucked through the said inlet port 3 and heat-exchanged by cold air or warm air to the room is formed in the upper front part of the main body 1.

In addition, the discharge port 7 is provided with a wind direction up and down control plate 9 for adjusting the direction of the air discharged into the room through the discharge port 7 up and down and the wind direction left and right control plate 11 to adjust the left and right, the discharge port Inside of (7), the discharge port 7 is opened to smoothly supply the heat exchanged air to the heat exchanger (not shown) during operation of the air conditioner, and the discharge port 7 is opened during operation of the air conditioner. Discharge port door 13 is provided to close the discharge port 7 in order to prevent dust or foreign matter from flowing into the main body 1 and to have a beautiful appearance.

A cover member 15 is fixed to the front surface of the main body 1 to secure the appearance of the indoor unit and to protect the interior, and an operation mode of an air conditioner is provided on the lower side of the cover member 15. , Cooling, dehumidification, blowing, heating, etc.) and a start / stop of operation, and an operation unit 17 for adjusting the air volume and the wind direction of the air discharged through the discharge port 7.

In addition, the driving means for moving the discharge port door 13 upward or downward is fixed by the support member 19 and the support member 19 fixed to the upper front of the main body 1, the discharge port door ( 13 is coupled to the shaft 22 of the door motor 21 so as to be rotatable by the power generated in the door motor 21 and the power generated by the door motor 21 for moving upward or downward; Rack 25 for converting the pinion 23 and the rotational movement of the pinion 23 into a linear movement so as to move the discharge port door 13 upward or downward in connection with the pinion 23 and the pinion 23 when it is rotated. It consists of.

In addition, the driving means for moving the wind up and down control plate (9) is linked to the drive motor 27 installed inside the main body 1, the drive motor 27, the plurality of wind up and down control plates ( It consists of several link members 29 which rotate 9) simultaneously.

In the air conditioner configured as described above, when the user operates the remote controller or the operation unit 17 to select the desired operation mode and then turns on the operation / stop key (hereinafter referred to as the operation key), the door motor 21 is configured in the forward direction. The pinion 23 coupled to the shaft 22 of the door motor 21 is rotated downward along the rack 25 to move the discharge door 13 coupled with the rack 25 downward. The discharge port 7 is opened.

When the discharge port 7 is completely open, the indoor fan (not shown) rotates and the indoor air is sucked into the main body 1 through the suction port 3, and the indoor air sucked through the suction port 3 is not shown. Heat is exchanged by the latent heat of evaporation of the refrigerant flowing in the heat exchanger while passing through the heat exchanger.

The air heat-exchanged to the heat exchanger is guided to the upper portion and discharged into the room through the discharge hole 7, and the air discharged through the discharge hole 7 is in the wind direction angle of the wind direction up and down control plate 9 and the wind direction left and right control plate 11. Accordingly, the air direction is adjusted up and down or left and right to perform indoor air conditioning.

At this time, the method for adjusting the air direction of the air discharged by the wind direction upward and downward control plate 9 up and down, first, when the wind direction up and down control plate 9 provided on the operation unit 17, the driving motor 27 Drive the plurality of link members 29 are interlocked and the wind direction up and down control plate 9 swings up and down, and when the key is turned on again, the drive motor 27 is turned off and the wind direction up and down control plate 9 is stopped. According to the wind direction of the discharged air was adjusted up and down.

When the operation key is turned off during the normal operation of the air conditioner as described above, the door motor 21 is driven in the reverse direction while the pinion 23 is interlocked with it and rotates upward along the rack 25 to open the discharge door 13. Move upward to close the outlet 7.

However, in the conventional air conditioner configured as described above, the door motor 21 for moving the discharge port door 13 upward or downward and the driving motor 27 for swinging up and down the wind direction control plate 9 are separately installed. Has risen and workability falls.

Therefore, the present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is to reduce the manufacturing cost and workability due to the removal of the motor by simultaneously driving the discharge port door and the wind direction up and down control plate using one door motor It is to provide a discharge device and an control method of the air conditioner that can improve the.

In order to achieve the above object, a discharge device of an air conditioner according to the present invention includes a suction port for sucking indoor air, a discharge hole for discharging air sucked through the suction hole, and heat exchanged through the suction hole, and a wind direction of the air discharged through the discharge hole. An air conditioner having an up / down control plate to adjust and a discharge door to open and close the discharge port to prevent dust or foreign matter from flowing through the discharge port, wherein the air outlet door is opened and closed, and the wind up and down control plate is vertically swinged. A driving operation means for inputting a keyer signal so as to control the opening and closing operation of the discharge port door and the vertical swing operation of the wind direction raising and lowering control plate according to the key signal inputted by the driving operation means; According to the opening and closing of the discharge port door at the same time the upper and lower swing control plate It is characterized by being a door motor driving means for driving the door motor.

In addition, the discharge 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 door by driving the door motor in accordance with the operation and stop signal input by the operation operation means, and the operation when opening the discharge port door Wind direction control step of swinging the door motor up and down by forward and reverse rotation of the door motor according to the swing and stop signal input by the operation means, and swing to control the swing operation of the wind direction up and down control plate by counting the driving time of the door motor. Characterized in that the control step.

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 to 3 designate the same names and the same reference numerals, and overlapping descriptions are omitted.

As shown in FIG. 4, the heat exchanged air is smoothly supplied to the heat exchanger (not shown) during operation of the air conditioner to the discharge port 7 formed above the main body 1 and discharging the heat exchanged air. Open the discharge port 7 so as to prevent dust or foreign matter from entering into the main body 1 through the outlet 7 during operation of the air conditioner, and at the same time, the discharge port to enhance the appearance. The discharge port door 51 which closes (7) is provided so that it may move up and down.

The inside of the discharge port door 51 is rotatably hinged wind direction control plate 53 is installed to adjust the direction of the air discharged into the room through the discharge port 7 up and down, one side of the support plate 55 The door motor 57 for driving the discharge port door 51 and the wind direction up and down control plate 53 at the same time is fixedly installed, and the discharge port door 51 is gradually lowered on one side of the support plate 55. An interlocking operation member 59 is installed to swing the wind direction up and down control plate 53 up and down.

The shaft 58 of the door motor 57 is provided with a pinion 61 which receives the power generated from the door motor 57 and is rotated forward and backward. The pinion 61 has the pinion 61. As the positive and reverse movements occur, the rack 63 moves up and down to move the discharge port door 51.

The interlocking operation member 59 is fixedly installed at one side of the wind direction control plate 53 and the discharge port door 51 so as to link the wind direction control panel 53 with the movement of the discharge port door 51. And a rotation link member installed between the wind direction adjusting plate 53 and interlocked as the wind direction adjusting plate 53 is rotated by the link member 65 to simultaneously rotate the plurality of wind direction adjusting plate 53. And a guide member 67 installed on one side of the support plate 55 to support the link member 65 so as to be movable.

The link member 65 is provided with an elastic member 68 on one side to increase the return movement of the link member 65, the locking member on one side so that the upper side of the discharge port door 51 is lowered in contact with ( 69 is provided to protrude, and the projection portion 65a protrudes in the longitudinal direction so as to be movably fixed to a plurality of fixings 67a formed at one side of the guide member 67 at the center side.

Next, a circuit block diagram for controlling the opening and closing operation of the discharge port door 51 and the interlocking operation of the wind direction up and down control plate 53 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 operating modes (automatic, cooling, dehumidification, blowing, heating, etc.) of the air conditioner and a plurality of air flows and the desired temperature (Ts; hereinafter referred to as the set temperature) of the air discharged through the discharge port (7). In addition to having a function key, an operation / stop key (hereinafter referred to as an operation key) is provided to input an operation start signal and an operation stop signal of the air conditioner.

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 start / operation input by the operation control unit 102. A microcomputer that controls the overall operation of the air conditioner in accordance with a stop signal, wherein the control means 104 moves the wind direction up and down control plate 53 in accordance with the up and down swing signals input by the driving operation means 102. At the same time as controlling the power applied to the door motor 57 to control the up and down swing operation of the wind direction up and down control plate 53 by counting the driving time of the door motor 57.

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 indoor air is detected.

The door motor driving means 108 receives the control signal output from the control means 104 when the operation start signal and the operation stop signal by the driving operation means 102 are derived to open and close the discharge port 7. Drive control of the door motor 57 to move the old door 51 up and down, the door motor driving means 108 moves downward of the discharge port door 51, that is, when the discharge port 7 is opened. In response to the vertical swing signal input by the operation operation means 102, the door motor 57 is rotated squarely to swing the wind direction up and down control plate 53 up and down.

The door opening / closing detecting means 110 detects whether the discharge opening 7 is opened or closed according to the opening / closing position of the discharge door 51 which is moved up and down by the door motor driving means 108 to the control means 104. And the compressor driving means 112 according to the difference between the temperature Ts set by the user by the driving operation means 102 and the room temperature Tr sensed by the room temperature sensing means 106. The control unit 104 receives the control signal output from the control means 104 and drives the compressor 113.

The fan motor driving unit 114 receives a control signal output from the control unit 104 to blow the air heat-exchanged to a heat exchanger (not shown) into the room to control the rotation speed of the indoor fan motor 115 to control the indoor fan. The display means 116 is driven by the operation control means 102 under the control of the control means 104 and the operation selection mode (automatic, cooling, dehumidification, blowing, heating, etc.) and the set temperature Ts. ) And room temperature (Tr), as well as the operation of the air conditioner.

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

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

As an initial condition for explaining the operation of the present invention, it is assumed that the discharge port 7 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 operation mode (automatic, cooling, dehumidification, ventilation, heating, etc.) and the set temperature (Ts) of the desired air conditioner by operating the operation operation means 102, and then press the operation key, the operation operation An operation selection signal and an operation start signal (hereinafter referred to as an operation signal) are input from the means 102 to the control means 104.

Accordingly, in step S2, the control means 104 determines whether the driving signal is input from the driving operation means 102, and maintains the air conditioner in the operation 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 104 proceeds to step S3, and the control means 104 opens a control signal for opening the closed discharge port 7; )

Accordingly, the door motor driving means 108 is coupled to the shaft 58 of the door motor 57 while the door motor 57 is driven in the forward direction by driving the door motor 57 under the control of the control means 104. The pinion 61 is rotated downward along the rack 63 in conjunction with the pinion 61 to move the discharge port door 51 downward to open the discharge port 7 as shown in FIG.

Subsequently, in step S4, the position of the discharge opening door 51 moved downward by the driving of the door motor 57 is detected by the door opening and closing detecting means 110, and the control means 104 detects the door opening and closing means ( In response to the signal sensed by 110, it is determined whether the discharge port 7 is completely opened.

As a result of the discrimination in step S4, when the discharge port 7 is not fully opened (NO), the door motor 57 is continuously driven until the discharge port door 51 is completely opened. When the discharge port 7 is completely opened (YES), the process proceeds to step S5, and the door motor driving means 108 stops driving the door motor 57 under the control of the control means 104 to discharge the door door ( The opening operation of 51) is completed.

Subsequently, in step S6, 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.

When the indoor fan is driven, the indoor air starts to be sucked into the main body 1 through the inlet port 3, where the temperature Tr of the indoor air sucked through the inlet port 3 is measured. To be detected).

Accordingly, in step S7, the indoor temperature Tr sensed by the indoor temperature sensing means 106 is compared with the temperature Ts set by the user to the operation operation means 102, thereby applying the driving condition of the compressor 113. 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 during the cooling operation is greater than the temperature Ts set by the user. 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 S7, when it is not the driving condition of the compression 113 (NO), the process returns to the step S6 and repeats the operation of step S6 or less 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 is driven into the main body 1 through the suction port 3 while the indoor fan is driven in step S9, and the indoor air sucked through the suction port 3 is heat exchanger not shown. Heat is exchanged by cold or warm air by the latent heat of evaporation of the refrigerant flowing in the heat exchanger while passing through the air.

The air heat-exchanged by the cold or warm air in the heat exchanger is moved upward and downward or left and right according to the wind direction angle of the wind direction up and down control plate 53 and the wind direction left and right control plate 11 installed to be rotated to the discharge port (7) Perform indoor air conditioning.

In step S10 during normal operation of the air conditioner as described above, the control means 104 determines whether a swing signal is input from the driving operation means 102, and if the swing signal is not input (NO), the step is performed. Return to S9 and continue normal operation.

As a result of the discrimination in step S10, when a swing signal is input during normal operation (YES), the control means 104 proceeds to step S11 and the control means 104 swings the wind direction up and down control plate 53 up and down to control the door motor. Output to the drive means 108.

Accordingly, the door motor driving means 108 drives the door motor 57 under the control of the control means 104 to continuously drive the door motor 57 in the forward direction while the pinion 61 follows the rack 63. When the discharge port door 51 is rotated downward and the downward movement is added, the upper inner side of the discharge port door 51 contacts the locking member 69 installed on one side of the link member 65 so as to contact the link member 65. Press, the link member 65 is guided by a plurality of fixing members (67a) formed on one side of the guide member 67 while sliding down while pulling the wind up and down control plate 53, the wind up and down control plate The rotary link member 66 interposed between the 53 is interlocked to operate the plurality of wind up and down control plates 53 at the same angle to maintain a horizontal state, thereby discharging the heat-exchanged air in a horizontal state. At this time, the elastic member 68 installed on one side of the link member 65 and the support plate 55 is compressed.

In addition, when the door motor 57 is continuously driven and the discharge port door 51 continues to move downward, the link member 65 is further lowered to further increase the wind angle of the wind direction adjusting plate 53 to increase the wind direction. The control plate 53 is upward, and the rotary link member 66 interposed between the wind up and down control plates 53 is interlocked to discharge the heat exchanged air upward as the wind up and down control plates 53 are simultaneously raised.

At this time, the compressive force of the elastic member 68 is further increased, and the link member 65 assists the ascending operation by increasing the restoring force of the elastic member 68.

In step S12, the opening driving time of the door motor 57 is counted by a timer built in the control means 104, and the experiment calculates a predetermined time (the time required for the upward direction upwards to be raised at a predetermined angle). Data) has passed, and if the predetermined time has not elapsed (NO), the process returns to step S11 to continue driving the door motor 57 until the wind direction adjusting plate 53 is raised at a predetermined angle. .

As a result of the discrimination in step S12, when a predetermined time has elapsed (YES), the process proceeds to step S13, whereby the door motor driving means 108 rotates the door motor 57 in reverse by the control of the control means 104. The door motor 57 is driven in the reverse direction, and as the link member 65 rises due to an increase in the restoring force of the elastic member 68, the airflow control plate 53 is downward to discharge the heat-exchanged air downward.

At this time, in step S14, the closing driving time of the door motor 57 is counted by the control means 104, and it is determined whether a predetermined time (time required for the downwind control plate to descend at a predetermined angle) has elapsed, and the predetermined time has not elapsed. If not (NO), the process returns to the step S13 and continues to drive the door motor 57 until the wind up and down control plate 53 is lowered by a predetermined angle.

As a result of the discrimination in step S14, when a predetermined time has elapsed (YES), the control means 104 determines whether or not the swing stop signal is input from the driving operation means 102, and the swing stop signal is If it is not input (NO), the process returns to the step S11 and repeats the operation of step S11 or below while swinging the wind direction up and down control plate 53 up and down in accordance with the forward and reverse rotation of the door motor 57.

As a result of the determination in step S15, when the swing stop signal is input (YES), the control means 104 proceeds to step S16 and the control means 104 returns a control signal for repositioning the wind direction adjusting plate 53 to the center of the door motor driving means. To 108.

Therefore, in the door motor driving means 108, the wind direction up and down control plate 53 is moved by driving the door motor 57 in the forward or reverse direction under the control of the control means 104, and in step S17, the door motor 57 is moved. According to the forward or reverse driving of the wind direction up and down control plate 53 is determined whether the original position in the center.

As a result of the discrimination in step S17, when the wind up / down control plate 53 is not in the home position (NO), the flow returns to step S16 to repeat the operation of step S16 or less, and the wind up / down control plate 53 is in the home position. In the case of YES, the control means 104 determines whether the operation stop signal has been input to the control means 104 from the operation operation means 102 in the case of YES.

As a result of the discrimination in step S18, when no operation stop signal is input (NO), the flow returns to step S9 to continue normal operation and repeats the operations of step S9 and below.

On the other hand, when the determination result in step S18, when the operation stop signal is input (YES), the flow advances to step S19, the control means 104 is a control signal for stopping the compressor 113 and the indoor fan motor 115 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 drive of the indoor fan.

Subsequently, in step S20, the control means 104 outputs a control signal to the door motor driving means 108 for closing the open outlet 7.

Therefore, the door motor driving means 108 is coupled to the shaft 58 of the door motor 57 while the door motor 57 is driven in the reverse direction by driving the door motor 57 under the control of the control means 104. The pinion 61 is rotated upward along the rack 63 in conjunction with the pinion 61 to move the discharge port door 51 upward to close the discharge port 7 as shown in FIG.

Subsequently, in step S21, the position of the discharge opening door 51 moved upward by the driving of the door motor 57 is detected by the door opening and closing detecting means 110, and the control means 104 detects and opens the door opening and closing detecting means 110. It is determined whether the discharge port 7 is completely closed by receiving the signal sensed by).

As a result of the discrimination in step S21, when the discharge port 7 is not completely closed (NO), the process returns to step S20 to continuously drive the door motor 57 until the discharge port door 51 is completely closed. When the discharge port 7 is completely closed (YES), the process proceeds to step S22, where the door motor driving means 108 stops the driving of the door motor 57 under the control of the control means 104 to discharge the door. Complete the closing operation of 51).

Subsequently, in step S23, 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.

According to the discharge device and the control method of the air conditioner according to the present invention as described above, by driving the discharge port door and the wind direction up and down control plate at the same time by using a single door motor, manufacturing cost reduction and workability due to the deletion of the motor There is an excellent effect that can be improved.

Claims (3)

An intake port for sucking indoor air, an outlet port for discharging air exchanged through the suction port, and a discharge port door for opening and closing the discharge port to prevent dust or foreign matter from entering through the discharge port, and the discharge port door In the air conditioner having a wind direction up and down control panel for interlocking operation to adjust the wind direction of the air discharged through the discharge port up and down, the operation operation means for inputting the operation signal of the air conditioner or the swing signal of the wind direction up and down control plate And control means for outputting a control signal for opening the discharge port door or swinging up and down the wind direction control plate when an operation signal or a swing signal is input from the driving operation means, and the discharge port according to the control signal from the control means. Open the door or interlock according to the movement of the discharge door Discharge device of the air conditioner so that the up and down swing of the upper and lower control panel consisting of a door motor driving means for normally and reversely driving the motor for a door characterized. The air conditioner of claim 1, wherein the control means is a microcomputer that counters the forward / lower driving time of the door motor during the vertical swing operation of the up / down control plate to control the shanghai movement of the up / down control plate. Discharge device. A driving signal judging step for judging whether a driving signal has been input from the driving manipulating means; and a discharging opening for opening a discharge port door by driving a door motor according to a control signal from the control means if it is determined that the driving signal has been input in the driving signal judging step. A swing signal judging step of judging whether a swing signal is inputted from the driving operation means when the opening step door is opened, and when the swing signal is input at the swing signal judging step, the door motor is driven forward and backward. A vertical swing step of swinging up and down the wind direction control plate which interlocks with the movement of the discharge port door, and a swing control step of controlling the shank movement of the wind direction control panel by counting the forward and reverse driving time of the door motor. Discharge control method of an air conditioner.