KR100218959B1 - Blowing direction control device and its control method - Google Patents

Abstract

The present invention rotates the louver to the reference position when the operation signal (cooling or heating) is input, and then automatically adjusts the position of the louver at the rotation angle according to the cooling operation or the heating operation, and rotates the louver to the reference position when the operation stop signal is input. The present invention relates to an air conditioner and a control method of the air conditioner that automatically control the position of the louver by the rotation angle according to the operation signal after the operation is stopped.

That is, the position detection switch 35 installed on the rotation path of the louver 31 and outputting a signal according to the reference position while the contact is opened and closed by the pushing force of the louver 31 during rotation, and for cooling operation or heating operation. When the driving signal is input, the louver motor 71 is driven in the forward direction to receive the reference position of the louver motor 71 from the position detection switch 35, and the louver 31 at a predetermined rotation angle according to the cooling operation or the heating operation. The louver motor 71 is driven in the reverse direction for a set time so that the motor rotates, and when the operation stop signal is input, the louver motor 71 is driven in the forward direction to receive the reference position of the louver 31 from the position detection switch 35. To control the louver motor 71 in a reverse direction for a predetermined time so that the discharge port 30 is closed by the louver 31, and the microcomputer 100 electrically connected to the louver motor 71 and the position detection switch 35 is controlled. Characterized by The.

Description

Wind direction control device of air conditioner and its control method

The present invention relates to a wind direction control device and a control method of the air conditioner, and more particularly, when the operating signal (cooling or heating) is input, the louver is rotated to a reference position and then rotated at a rotational angle according to cooling operation or heating operation. When the louver is automatically adjusted and the operation stop signal is input, the louver is rotated to the reference position, and then the louver is automatically controlled by the rotation angle according to the operation stop. It relates to a wind direction control device and a control method of the air conditioner.

In general, an air conditioner for both cooling and heating uses a refrigeration cycle that absorbs heat from indoor air and discharges it to the outside, and a heating cycle that absorbs heat from outdoor air and radiates it into the room. Equipped with.

Such a conventional air-conditioning and heating air conditioner, also known as a heat pump type air conditioner (hereinafter referred to as an “air conditioner”) is an inlet for inhaling indoor air on the front surface as shown in FIG. (41) is formed and heat exchanged by the indoor unit main body (40) formed with a discharge port (30) for discharging the air sucked into the front lower side and the indoor air sucked into the inlet (41) of the main body 40 and A heat exchanger 10 disposed inside the suction port 41 and an indoor fan 20 disposed inside the discharge port 30 are blown to blow the indoor air heat exchanged with the heat exchanger 10 to the discharge port 30. It is composed of

In addition, the louver is rotatably installed in the discharge port 30 so that the wind direction of the discharge port 30 is adjusted upward and downward in accordance with the drive of the louver motor 71, and the guide wing 36 is rearward of the louver 31. Is formed so that the wind direction of the discharge port 30 is adjusted to the left and the right.

In the conventional air conditioner configured as described above, the indoor air is cooled and heated as the indoor air is sucked into the intake port 41 by heat of the heat exchanger 10 by being driven by the indoor fan 20 and then discharged into the room through the discharge port 30. do.

Hereinafter, the structure of the wind direction control device of the conventional air conditioner will be described.

The drip tray 11 receiving the condensed water generated in the heat exchanger 10 is formed inside the discharge port 30, and the support 32 for rotating the louver 31 is installed in the drip tray 11. At this time, the plurality of louvers 31 are connected to each other through the link 33, the interlocking rotation when the louver motor 71 is driven to open and close the discharge port (30).

The conventional wind direction control device configured as described above rotates the louver as shown in FIG. 2 during the cooling and heating operation. In general, during cooling, the specific gravity of the discharged air is heavier than the air weight of the indoor space. Therefore, by driving the direction of the louver 31 in a state as shown by the dotted line, by upwardly adjusting the direction of the discharged air, the indoor space can be cooled effectively.

In addition, the specific gravity of the air discharged during heating is lighter than the air weight of the indoor space. Therefore, by rotating the direction of the louver 31 in a state as shown by the solid line and downwardly discharging the discharged air, it is possible to effectively heat the indoor space.

In the conventional wind direction control device as described above, the louver 31 rotates in one direction during the initial cooling and heating operation. That is, during cooling, the louver 31 is rotated a predetermined angle in one direction to discharge the cooled air upward, and during heating, the louver 31 is further rotated in one direction to discharge the air downward.

However, in the conventional wind direction control apparatus during the heating, the downward discharge of air is not effectively made. This is because the louver rotating in one direction is no longer able to rotate due to the structure of the link coupling the louver and the support supporting the louver at a certain angle or more, and the concave rounded portion is discharged air at the maximum rotation of the louver. It serves as a guide means for guiding, and there is no effective control of the discharged air.

Therefore, the air that is not discharged far downward in the heating has a problem that the specific gravity is lighter than the air of the indoor space is raised by the convection action, so that the indoor space can not be effectively heated. In addition, in order to maintain a proper heating temperature due to premature problems, heating must be performed for a long time, and accordingly, there is a problem that the energy consumption rate is increased. In addition, in rotating the louver at the rotational angle according to cooling or heating, by rotating the louver according to the cooling or heating without detecting the reference position of the louver, the error of the rotational angle according to the rotation of the louver is accumulated continuously. There was a problem that can not rotate the louver accurately at the rotation angle according to.

The present invention has been made in order to solve the above-mentioned problems, the object of the present invention is to rotate the louver to the reference position when the operation signal (cooling or heating) is input, and then automatically position the louver at the rotation angle according to the cooling operation or the heating operation. When the stop signal is input, rotate the louver to the reference position, and automatically adjust the position of the louver according to the rotation angle according to the operation stop, so that the air conditioner can be precisely controlled by the rotation angle according to the input signal. The present invention provides a wind direction control device and a control method thereof.

1 is a cross-sectional view showing an indoor unit of a general air conditioner.

2 is a cross-sectional view showing the operation of the wind direction control device of a conventional air conditioner during cooling and heating.

3 is a cross-sectional view showing the operation of the wind direction control device during heating of the air conditioner according to the present invention.

4 is a flow chart of the air drawn by comparing the present invention and the conventional heating.

5 is an electrical block diagram of the wind direction control device of the air conditioner according to the present invention.

6 is a control flowchart of the wind direction control device of the air conditioner according to the present invention.

* Explanation of symbols for main parts of the drawings

10: heat exchanger 20: indoor fan

30 discharge port 31 louver

35: position detection switch 71: louver motor

100: micom

The configuration of the present invention for achieving the above technical problem, the inlet is formed in the front of the intake air to the indoor air and the discharge port is formed to discharge the air sucked in the front lower side to form the appearance of the indoor unit, from the inlet of the main body It sucks the indoor air and heat-exchanges the heat exchanger disposed inside the main body, and blows it to be discharged through the discharge port, and is blown through the discharge hole by the blowing fan installed between the heat exchanger and the discharge port, the blower fan is discharged through the discharge port. A wind direction control device of an air conditioner having a louver rotatably installed on a support extending from the inner star of the main body so that the wind direction of air is adjusted up and down and a louver motor for rotating the louver, the reference position of the louver is detected. So that when the louver rotates, the pushing force of the louver The contact is opened and closed to output a signal according to the reference position of the louver, and when the position detection switch installed on the support on the rotation path of the louver and the operation signal according to the cooling operation or the heating operation are inputted, the louver motor is driven in the forward direction. Receiving the reference position of the louver motor from the position detection water position to drive the louver motor in the reverse direction for a predetermined time so that the louver is rotated at a preset rotation angle in accordance with the cooling operation or heating operation, the operation stop signal is input When the louver motor is driven in a forward direction to receive the reference position of the louver from the position detection switch, the louver motor is driven in a reverse direction for a predetermined time so that the discharge port is closed by the louver, and the louver motor and the position detection are performed. With microcomputer electrically connected to switch It is characterized by.

When the start signal is input, the louver is rotated by applying power to the louver motor by the control signal of the microcomputer so that the louver is positioned at the reference position, and the contact is opened and closed by the pushing force during the louver rotation. When the reference position rotation step of the louver for receiving a signal from the position detection switch for outputting a signal according to the reference position of the power supply to the louver motor by the control signal of the microcomputer, and the reference position rotation step is performed Cooling or heating operation by performing a louver motor driving step of applying power to the louver motor for a time set by the control signal of the microcomputer so that the louver is rotated at the rotation angle according to the driving or heating operation, and the louver motor driving step. When the stop signal is input while the engine is in operation, the louver is closed by the louver. The power is supplied to the louver motor according to the control signal of the com to rotate the louver to the reference position. Then, the reference position detection signal is received from the position detection switch. It characterized in that it comprises an operation termination step for applying power for a set time according to.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a cross-sectional view showing the operation of the wind direction control device when heating in accordance with the present invention, the inlet port 41 is formed on the front side to suck the indoor air and the discharge port 30 for discharging the air sucked in the front lower side into the room Is heat exchanged by the indoor unit main body 40 and the indoor air sucked into the suction port 41 of the main body 40 and the heat exchanger 10 disposed inside the suction port 41 and the heat exchanger 10. Blowing action to discharge the indoor air heat exchanged with the discharge port 30 is composed of an indoor fan 20 disposed inside the discharge port (30).

In addition, inside the discharge port 30, a drip tray 11 for receiving condensed water generated by the heat exchanger due to dew condensation during the cooling operation is formed, and a support 32 for rotating the louver 31 is formed.

In addition, the support 32 is rotatably coupled to the projection shaft 34 provided in the concave curved center portion of the louver 31, and the louver 31 is connected by a link 33.

In addition, the louver 31 is a rounded member, which serves to guide the discharge of the air conditioned by the heat exchanger 10, and closes the discharge port 30 when the indoor unit is stopped to provide a beautiful appearance when viewed from the outside. to provide. Since the louvers 31 are connected to each other through the link 33 as described above, the louvers 31 are rotated in cooperation with the louver motor 71 to open and close the discharge port 30.

That is, the louver 31 is further rotated to the inside of the indoor unit when the forward rotation of the louver motor 71, the position detection switch 35 for detecting this at the maximum rotation is provided in place of the support (32). Therefore, when the microcomputer 100 detects the maximum rotational position of the louver 31, the louver motor 71 is rotated forward to set the location of the louver 31 during heating as shown in FIG. To this end, the drip tray 11 provided inside the conventional indoor unit is designed to move upward.

Figure 4 is a schematic drawing comparing the flow of air discharged by the present invention and the conventional wind direction control device during heating, the solid line shows the present invention by a dotted line conventional.

The louver 31 is rotated as shown by the solid line of FIG. 2 of the conventional wind direction control apparatus during heating. That is, the direction of the louver 31 maintains a predetermined angle toward the harmonic space, so that it is not discharged far downward when the hot air is discharged, and it rises in a small circle due to the convection action, thereby decreasing the heat transfer rate in the indoor space. However, in the heating direction control apparatus of the present invention, as shown in FIG. 3, the louver 31 is operated. That is, the direction of the louver 31 leans back the indoor space, so that the discharge angle can be largely formed downward. Thus, the warm air can be discharged far downward. As a result, a large circle is drawn by convection, and the warm air makes a lot of contact with the air in the indoor space, thereby increasing the heat transfer rate in the indoor space.

5 is an electrical block diagram of the wind direction control device of the air conditioner of the present invention.

As shown in Figure 5, the electrical configuration of the wind direction control device of the air conditioner of the present invention is largely the louver motor driving unit for driving the microcomputer 100 and the wind direction control louver 31 for controlling the overall operation of the device ( 70), a function selection unit 50 for inputting a start of operation (cooling or heating) or an operation stop signal, and a position detection switch 60 for detecting a reference position of the wind direction control louver 31.

In the above-described configuration, the function selector 50 may be provided in the remote controller. For example, if the heating key is selected by placing the heating and cooling selection key, the louver 31 is fixed by rotating at a predetermined angle. In this case, the microcomputer 100 receives the reference position from the position detection switch 60 when the wind direction control louver 31 rotates, and then rotates the wind direction control louver 31 in the reverse direction and simultaneously counts the time to program the position. When the lapsed time elapses, the louver motor driving unit 70 is controlled to accurately control the position of the louver 31 at the time of heating.

Hereinafter, the operation of the wind direction control device of the air conditioner of the present invention will be described in detail.

Figure 6 shows the control flow of the wind direction control device of the air conditioner according to the present invention, it will be described as follows.

First, when power is applied, an operation determination step of determining whether the user selects the operation of the air conditioner is performed (1a).

When it is determined that operation is selected in the operation determination step 1a, the forward rotation step of the louver motor for forward rotation of the louver motor 71 is performed (2a).

When the louver motor 71 is rotated forward in the forward rotation step 2a of the louver motor, a reference position detection step of detecting a reference position of the louver motor 71 is performed (3a). In the reference position detecting step 3a, the louver 31, which is interlocked and rotated when the louver motor 71 rotates, operates the position detection switch 35 provided at the hinge portion 32 so that the position detection signal is controlled by the microcomputer ( 100) to be applied. That is, the contact is opened and closed by the pushing force of the louver 31 to apply a signal according to the reference position of the louver 31 to the minus 100. Therefore, the reference position of the louver 31 according to the rotation of the louver motor 71 can be checked well.

When the reference position of the louver 31 is detected in the position detection step 3a, a function determination step of determining whether the function selection of the current air conditioner is cooling operation or heating operation is performed (4a).

When it is determined that the cooling operation is performed in the functional determination step 4a, the louver motor 71 is rotated in reverse, and a count step of counting the driving time of the louver motor 71 is performed (5a).

A determination step of determining whether the count time T1 is greater than or equal to the preset time t1 by comparing the time T1 counted in the counting step 5a with the time t1 set in advance in the microcomputer 100 is performed. (6a).

If the determination condition is satisfied in the determination step 6a, the louver motor stop step of stopping the rotation of the louver motor 71 is performed (7a). This louver motor stop step (7a) is for discharging up the cold air during cooling. That is, since the temperature of the discharged air is lower than that of the indoor air, the discharged air moves downward. Therefore, in order to make use of the specific gravity of the air, the discharged air must be discharged far upward to increase the heat exchange rate of the indoor space.

When it is determined that the heating is determined in the function determination step 4a, the louver motor 71 is rotated in reverse, and a count step of counting the operation time of the louver motor 71 is performed (1b).

A determination step of determining whether the count time is greater than or equal to the preset time t2 is performed by comparing the time T2 counted in the counting step 1b with the time t2 previously set in the microcomputer 100 (2b). ).

If the determination condition is satisfied in the determination step 2b, a louver motor stop step of stopping the rotation of the louver motor 71 is performed (7a). This louver motor stop step 7a is for discharging warm air during heating. That is, since the temperature of the discharged air is higher than the indoor air, the discharged air moves upward. Therefore, the heat exchange rate in the indoor space can be increased only by exposing far downward in order to make use of the specific gravity of the air.

When it is determined that the air conditioner stops operating from the operation determination step 1a, a forward rotation step of the louver motor for forward rotation of the louver motor 71 is performed (1c).

In the forward rotation step 1c of the louver motor, a reference position detection step of detecting the reference position of the louver motor 71 is performed (2c). The reference position detecting step (2c) is the position detection signal is received by the microcomputer 100 by operating the position detection switch 35 provided in place of the support 32, the louver 31 which is interlocked rotation when the louver motor 71 is rotated The reference position of the louver according to the rotation of the louver motor 71 can be checked to be good.

When the reference position of the louver 31 is detected in the position detection step 2c, the louver motor 71 is reversed and a count step of counting the driving time of the louver motor 71 is performed (3c).

A determination step of determining whether the count time T3 is greater than or equal to the preset time t3 by comparing the time T3 counted in the counting step 3c with the time t3 previously set in the microcomputer 100. (4c).

When the determination condition is satisfied in the determination step 4c, the louver motor stop step 7a for stopping the rotation of the louver motor 71 is performed. The louver motor stop step (7a) is to end the operation of the air conditioning equipment to close the discharge port 30 of the indoor unit to block the inflow of dust or dirt into the discharge port (30).

In addition, this invention is not limited to the said Example, It can change and implement variously in the range which does not deviate from the summary.

As described above, in the air conditioner of the air conditioner according to the present invention, when an operation signal (cooling or heating) is input, the louver is rotated to the reference position, and then the position detection switch confirms the reference position of the louver for cooling operation or The louver is rotated at the rotation angle according to the heating operation, and when the operation stop signal is input, the louver is rotated to the reference position, and the reference position of the louver is confirmed from the position detection switch, and the louver is rotated at the rotation angle according to the operation politics. There is an effect that can accurately control the position of the louver according to the rotation angle.

Claims (2)

A suction port 41 is formed in the front of the indoor air, and a discharge port 30 is formed in the lower part of the front to discharge the air. Intake of the indoor air from the heat exchanger 10 and the heat exchanger 10 disposed inside the main body 40 and blown to discharge through the discharge port 30 between the heat exchanger 10 and the discharge port 30 Blowing fan 20 installed in the blowing fan 20, by the blowing action of the blowing fan 20 to the support 32 extending from the inner wall of the main body 40 to adjust the wind direction of the air discharged through the discharge port 30 up and down In the air conditioner adjusting device of the air conditioner having a louver 31 rotatably provided and a louver motor 71 for rotating the louver 31, the reference position of the louver 31 is detected so that the reference position can be detected. When the louver 31 is rotated, the push of the louver 31 The contact is opened and closed to output a signal according to the reference position of the louver 31, the position detection switch 35 installed on the support 32 on the rotation path of the louver 31, and for cooling operation or heating operation. When the driving signal is input, the louver motor 71 is driven to receive the reference position of the louver motor 71 from the position detection switch 35, and thus the louver at a preset rotation angle according to a cooling operation or a heating operation. Drives and controls the louver motor 71 for a set time so that 31 is rotated, and when the operation stop signal is input, the louver motor 71 is driven to drive the reference position of the louver 31 from the position detection switch 35. Drive control of the louver motor 71 for a set time so that the discharge port 30 is closed by the louver 31 and electrically connected to the louver motor 71 and the position detection switch 35. my Wind direction control device of an air conditioner which is characterized in that it includes a (100). A suction port 41 is formed in the front of the indoor air, and a discharge port 30 is formed in the lower part of the front to discharge the air. Intake of the indoor air from the heat exchanger 10 and the heat exchanger 10 disposed inside the main body 40 and blown to discharge through the discharge port 30 between the heat exchanger 10 and the discharge port 30 Blowing fan 20 installed in the blowing fan 20, by the blowing action of the blowing fan 20 to the support 32 extending from the inner wall of the main body 40 to adjust the wind direction of the air discharged through the discharge port 30 up and down In the wind direction control apparatus of the air conditioner, which includes a louver 31 rotatably installed and a louver motor 71 for rotating the louver 31, the louver 31 is moved to a reference position when an operation start signal is input. To the control signal of the microcomputer 100 to be positioned as By applying power to the louver motor 71 by rotating the louver 31, the contact is opened and closed by the pushing force when the louver 31 is rotated to output a signal according to the reference position of the louver 31 A reference position rotation step (1a-3a) of the louver for receiving a signal from the position detection switch 35 to cut off the power to the louver motor 71 by the control signal of the microcomputer 100, and the reference position of the louver When the rotation steps 1a-3a are performed, the power is turned on for the time set by the control signal of the microcomputer 100 so that the louver 31 is rotated at the rotation angle according to the cooling operation or the heating operation. If the operation stop signal is input during the cooling or heating operation by performing the louver motor driving steps 5a-6a and 1b-2b and the louver motor driving steps 5a-6a and 1b-2b. The louver 31 is rotated at the rotational angle so that the discharge port 30 After the power is supplied to the louver motor 71 by the control signal of the microcomputer 100 to rotate, the louver 31 is rotated to the reference position, and then the reference position detection signal is received from the position detection switch 35. And a driving stop step (1c-4c) of applying power for a time set by the louver motor (71) by the control signal of the microcomputer (100).

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