KR20020002799A - Wind direction control method for airconditioner - Google Patents

Abstract

PURPOSE: A method for controlling air flow direction for air conditioner is provided to achieve a uniform temperature control all over the indoor area by calculating the indoor temperature in an accurate manner through the use of two temperature sensors. CONSTITUTION: A method comprises a first step(S21) of inputting a remote controller control signal; a second step(S22) of judging whether the input signal is for operating an air conditioner; a third step(S24) of reading the indoor temperature sensed by two indoor temperature sensors, if the input signal is for operating an air conditioner; a fourth step(S25) of calculating an average indoor temperature; a fifth step(S26) of judging whether the average indoor temperature is higher than the temperature set by the user; a sixth step(S28) of turning off an outdoor unit, if the average indoor temperature is lower than the temperature set by the user; a seventh step(S27) of operating the outdoor unit, if the average indoor temperature is higher; an eighth step(S29) of subtracting the right indoor temperature from the left indoor temperature; a ninth step(S30 to S35) of controlling the air discharged from the indoor unit to repeatedly flow in a horizontal direction, if the user has elected an automatic air flow mode; a tenth step(S36 to S40) of setting the location of the air flow direction adjusting unit to left X0 degree, left Y0 degree, right X0 degree and right Y0 degree, and setting the location of the air flow direction adjusting unit to the center; and an eleventh step(S41) of controlling operation of the indoor fan so as to promote heat exchange operation between the indoor air and refrigerant.

Description

Wind direction control method for air conditioner

The present invention relates to a wind direction control method of an air conditioner, and more specifically, to determine the rotation angle of the indoor wind direction on the basis of the left and right temperature difference of the room, the air to adjust the uniform temperature control throughout the room The present invention relates to a wind direction control method of a conditioner.

As shown in FIG. 1, a conventional air conditioner receives an indoor temperature sensor 2 that detects an indoor temperature, and an operation command signal selected by a user through a remote controller 4. 1) the remote control signal receiving unit 3 to be transmitted to, and the room temperature detected by the indoor temperature sensor 2 and the user set to perform the proper operation according to the operation command signal received from the remote control signal receiving unit 3 And a control unit 1 for controlling loads (compressor, indoor fan and outdoor fan, and wind direction controller) for cooling operation by comparing one desired temperature.

Therefore, a conventional air conditioner includes an indoor unit fan motor 5 for establishing a flow of indoor air under the control of the controller 1, and an indoor unit wind direction for adjusting the direction of air discharged from the indoor unit under the control of the controller 1. An adjustment step motor 6 and an outdoor unit fan motor and a compressor 7 operated under the control of the control unit 1 are included.

2 shows an indoor temperature sensor 2 installed in the indoor unit 10 of the conventional air conditioner. As shown, the indoor temperature sensor 2 is installed in the middle of the indoor unit 10, and the indoor unit wind direction adjusting step motor 6 for adjusting the direction of the air discharged from the indoor unit 10 is installed at the bottom.

The following describes the operation according to the wind direction control of the conventional air conditioner consisting of the above configuration.

3 is a flowchart illustrating an operation process according to a wind direction control of a conventional air conditioner.

As shown, the controller 1 inputs a key signal (driving command signal) selected by the user through the remote controller 4 through the remote controller signal receiver 3 (step S1). Then, it is determined whether the signal input in the step S1 is a signal for driving the air conditioner, that is, an air conditioner operation signal for cooling operation (step S2).

As a result of the determination in step S2, when the operation signal of the air conditioner is input, the controller 1 reads the room temperature detected from the room temperature sensor 2 (step S4). However, if it is not the operating signal of the air conditioner in step S2, the process proceeds to step S3. The third step S3 is performed when the air conditioner is stopped. In this case, all the loads are controlled to be stopped. That is, the outdoor unit fan motor and the compressor 7 are stopped, and the indoor unit fan motor 5 and the indoor unit wind direction adjusting step motor 6 are also controlled in the stopped state.

On the other hand, when the operation signal of the air conditioner is input in step S2, the room temperature detected by the room temperature sensor 2 in step S4 is read at predetermined time intervals, and the user sets the read room temperature. The temperature is compared (step S5).

When the indoor temperature detected in the step S5 is lower than the user's desired temperature, the outdoor fan motor and the compressor 7 which are the outdoor unit load are controlled to be in a stopped state (step S7). However, when the indoor temperature detected in step S5 is higher than the user's desired temperature, the outdoor unit fan motor and the compressor 7 which are the outdoor unit loads are driven to control the cooling cycle to be driven (step S6).

After the operation control of the outdoor unit by the step S6 and the step S7, the control unit 1 outputs a signal for controlling the operation of the indoor unit wind direction control step motor (6). If the user selects the automatic wind direction mode, the wind direction control step motor 6 is driven to control the wind direction discharged from the indoor unit to move left and right repeatedly (steps S8 and S9).

However, if the wind direction automatic mode is not selected in the step S8, the wind direction control step motor is controlled to be in a stopped state, so that the wind discharged to the room is continuously discharged only in one direction (step S10).

After controlling the operation of the wind direction adjusting step motor 6 by the steps S9 and S10, the controller 1 controls the operation of the indoor fan 5 to promote heat exchange between the indoor air and the refrigerant (the second step). Step S11).

That is, the wind direction control of the conventional air conditioner is repeatedly controlled while the wind direction discharged to the room is moved in the left and right directions when the user selects the automatic wind direction mode, but the wind direction control is not performed when the wind direction automatic mode is not selected. The step motor 6 is turned off to fix the wind direction in one direction.

The conventional air conditioners in which the wind direction is controlled thus expose the following problems.

In the conventional air conditioner, one indoor temperature sensor (2) for detecting the indoor temperature is provided at the center of the indoor unit (10). Therefore, the indoor temperature sensor 2 detects the temperature of the portion close to the installed position, and the detected temperature is transmitted to the control unit 1 to be used as a basic signal for controlling the cooling operation.

At this time, if the wind direction control step motor 6 for controlling the wind direction of the indoor unit is controlled to the off state, the air discharged from the indoor unit is supplied only in one direction. In this controlled state, the room is not controlled to a uniform temperature as a whole. That is, when the indoor unit air is discharged to the left side, even if the indoor temperature of the left side is low state, the indoor temperature of the right side is high state. The room temperature is high.

Therefore, the indoor temperature sensor 2 that detects the indoor temperature at a specific position of the indoor unit has a problem of detecting only the indoor temperature of a specific portion, and in the case of controlling the cooling operation based on the uneven indoor temperature, It will cause a problem that does not get a driving effect according to the user's satisfaction.

Accordingly, an object of the present invention is to provide a wind direction control method of an air conditioner capable of quickly compensating a left and right temperature difference in a room.

1 is a configuration diagram of a conventional air conditioner,

2 is a block diagram of an indoor unit of a conventional air conditioner,

3 is an operation flowchart of a conventional air conditioner,

4 is a configuration diagram of an air conditioner according to the present invention;

5 is a configuration diagram of an indoor unit of an air conditioner according to the present invention;

6 is an operation flowchart for adjusting the wind direction of the air conditioner according to the present invention.

Explanation of symbols on the main parts of the drawings

1,101: control unit 2,102,103: room temperature sensor

3,108: remote control signal receiver 4,104: remote control

5,105: Indoor unit fan motor 6,106: Indoor unit wind direction control step motor

7,107: Outdoor unit fan motor and compressor

Wind direction control method of the air conditioner according to the present invention for achieving the above object comprises a first step of detecting the left temperature of the room; Detecting a right temperature of the room; A third step of comparing the temperatures detected in the first and second steps and calculating a temperature difference; And a fourth step of adjusting the direction of the wind discharged into the room based on the temperature difference calculated in the third step.

The present invention includes a fifth step of calculating the average room temperature based on the temperature detected in the first and second steps; And a sixth step of controlling the cooling operation when the average room temperature calculated in the fifth step is higher than the desired temperature.

In the fourth step of the present invention, the left and right temperature differences are divided into predetermined ranges, and after setting the wind direction positions in each range, it is determined that the range of the calculated temperature difference is controlled to the preset wind direction position. It features.

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

4 is a block diagram for controlling the wind direction of the air conditioner according to the present invention.

As shown in FIG. 5, the air conditioner of the present invention is provided with two indoor temperature sensors 102 and 103 for detecting the indoor temperature on the left and right sides of the indoor unit. And the air conditioner of the present invention, the remote control signal receiving unit 103 for receiving a driving command signal that the user selects through the remote control 104, and transmits it to the control unit 101 to be described later, and the remote control signal receiving unit 103 And a controller 101 for inputting an operation command signal received from the controller and controlling loads (a compressor, an indoor fan and an outdoor fan, and a wind direction controller) for cooling operation.

The controller 101 calculates an average indoor temperature of the left and right indoor temperatures detected by the two indoor temperature sensors 102 and 103, and controls the cooling operation when the average indoor temperature is higher than a desired temperature set by the user. Characterized in that.

In addition, the control unit 101 of the present invention divides the temperature difference detectable at the left and right room temperature into a predetermined range, and sets and stores the position of the wind direction controller within each range. That is, when the temperature difference between the left / right room temperature is more than + A degree based on the left room temperature (subtracting the right room temperature from the left room temperature), the wind direction adjustment position is adjusted in the left X ° direction, and the left / right room temperature When the temperature difference is more than + B, the wind direction adjustment position is adjusted in the left Y ° direction, and when the temperature difference of the left / right room temperature is more than -A degree, the wind direction adjustment position is adjusted in the right X ° direction. In addition, when the temperature difference between the left and right room temperature is more than -B degree, the wind direction adjusting position is adjusted in the right Y ° direction, and when the temperature difference of the left and right room temperature is less than -B degree, the wind direction adjusting position is adjusted to the center. .

In this way, the controller divides the range according to the temperature difference between the left and the right indoor temperature into a predetermined number, sets the wind direction adjusting position in each range, and stores the range in the internal memory. Then, in the case of the cooling operation, when the wind direction automatic mode is not set, the wind direction adjusting position is set by using the temperature difference between the left and right room temperature.

In addition, the air conditioner of the present invention controls the direction of the air discharged from the indoor unit under the control of the indoor unit fan motor 105 and the indoor unit fan motor 105 to create a flow of indoor air under the control of the control unit (101). An indoor unit wind direction adjusting step motor 206 and an outdoor unit fan motor and a compressor 207 operated under the control of the control unit 1 are included.

FIG. 5 shows two indoor temperature sensors 102 and 103 installed in the indoor unit of the air conditioner of the present invention. As shown, indoor temperature sensors 102 and 103 are installed on the left side and the right side of the indoor unit, respectively, and an indoor unit wind direction adjusting step motor 106 for controlling the direction of the air discharged from the indoor unit is installed at the bottom.

5, the direction in which the wind is discharged by the position control of the wind direction controller according to the temperature difference between the two indoor temperature sensors is illustrated by an arrow.

The following describes the wind direction control method of the air conditioner according to the present invention made up of the above configuration.

6 is an operation flowchart according to the wind direction control of the air conditioner according to the present invention.

The controller 101 inputs a key signal (driving command signal) selected by the user through the remote controller 104 through the remote controller signal receiver 103 (step S21). In operation S22, it is determined whether the signal input in operation S21 is a signal for operating the air conditioner, that is, an air conditioner operation signal for cooling operation.

As a result of the determination of step S22, when the operation signal of the air conditioner is input, the controller 101 reads the room temperature detected from the two indoor temperature sensors 102 and 103 located at the left and right sides of the indoor unit (step S24). . However, if it is not the operating signal of the air conditioner in step S22, the process proceeds to step S23. The step S23 is performed when the air conditioner is stopped. In this case, all the loads are controlled to be stopped. That is, the outdoor unit fan motor and the compressor 107 are stopped, and the indoor unit fan motor 105 and the indoor unit wind direction adjusting step motor 106 are also controlled to the stopped state.

On the other hand, when the operation signal of the air conditioner is input in the step S22, the indoor temperature detected by the two indoor temperature sensors (102, 103) in step S24 is read at predetermined time intervals, and the left / right room temperature of the read The average room temperature is calculated (step S25).

Using the average room temperature calculated in step S25, the controller 101 controls the cooling operation. That is, the average indoor temperature is compared with the desired temperature set by the user (step S26).

When the average indoor temperature detected in the step S26 is lower than the desired temperature of the user, the outdoor fan motor and the compressor 107 which is the outdoor unit load are controlled to be in a stopped state (step S28). However, when the indoor temperature detected in step S26 is higher than the user's desired temperature, the outdoor unit fan motor and the compressor 107 which are the outdoor unit loads are driven to control the cooling cycle to be driven (step S27).

After the operation control of the outdoor unit by the step S27 and step S28, the control unit 101 performs a process of controlling the operation of the indoor unit wind direction control step motor 106. First, the control unit 101 calculates a temperature difference between the left room temperature and the right room temperature detected by the two room temperature sensors 102 and 103. At this time, based on the left room temperature, the right room temperature is subtracted from the left room temperature (step S29).

It is then determined whether the user selects the wind direction automatic mode. If the user selects the automatic wind direction mode, the wind direction control step motor 106 is driven to control the wind direction discharged from the indoor unit to move left and right repeatedly (steps S30 and S35).

However, when the wind direction automatic mode is not set in the thirtieth step, the controller 101 determines whether the temperature difference calculated in the step S29 falls within a preset range of temperature.

When the temperature difference calculated in step S29 is included in a range of + A or more (step S31), it means that the indoor left temperature is much higher than the indoor right temperature. Accordingly, the control unit 101 sets the wind direction control position of the wind direction controller to the left X ° position, and outputs a control signal according to the indoor unit wind direction control step motor 106 (step S36).

That is, when the position of the wind direction is located at the left X ° while the wind direction controller is moved in the left and right directions by the driving of the indoor unit wind direction control step motor 106, the wind direction control step motor 106 is stopped. The direction of the wind discharged from the indoor unit by this control is in the direction of X ° to the left centering on the center of the indoor unit. Therefore, the cold wind discharged from the indoor unit strongly cools the left side of the room to eliminate the left and right temperature difference of the room.

In addition, when the temperature difference calculated in the step S29 is included in the range of + B or more (step S32), it means that the indoor left temperature is somewhat higher than the indoor right temperature. Accordingly, the controller 101 sets the wind direction control position of the wind direction controller to the left Y ° position, and outputs a control signal according to the indoor unit wind direction control step motor 106 (step S37).

That is, when the position of the wind direction is located at the left Y ° in the process of moving the wind direction controller in the left and right directions by the driving of the indoor unit wind direction control step motor 106, the wind direction control step motor 106 is stopped. The direction of the wind discharged from the indoor unit by this control becomes the direction of Y ° to the left centering on the center of the indoor unit. Therefore, the indoor unit cools the left side of the room to eliminate the left and right temperature difference of the room. In this case, the angle Y ° should have an angle smaller than the angle X °.

However, when the temperature difference calculated in step S29 is included in the range of negative (-), the left indoor temperature becomes lower than the right indoor temperature. In this case, therefore, the wind direction of the wind direction controller should be directed to the right.

That is, when the temperature difference calculated in the step S29 is included in the range of -A degree or more (step S33), the controller 101 sets the wind direction control position of the wind direction controller to the right X ° position, and sets the control signal accordingly. Output to the indoor unit wind direction control step motor 106 (step S38).

When the temperature difference calculated in step S29 is included in the range of -B degree or more (step S34), the controller 101 sets the wind direction control position of the wind direction controller to the right Y ° position, and sets the corresponding control signal to the indoor unit. It outputs to the wind direction adjustment step motor 106 (step S39).

By the control by the steps S38 and S39, the direction of the wind discharged from the indoor unit is directed to the right centering on the indoor unit, so that the temperature of the right side of the room is lowered at a higher speed than the left side.

Finally, when the temperature difference calculated in step S29 is included in the range of -B degrees or less, the controller 101 determines that the temperature of the indoor left / right is almost the same, and sets the wind direction control position of the wind direction controller to the center position. (Step S40).

When the position of the indoor wind direction is adjusted based on the left / right temperature difference as described above, the controller 101 controls the operation of the indoor fan 105 to promote heat exchange between the indoor air and the refrigerant (step S41). ).

That is, the wind direction control method of the air conditioner according to the present invention is characterized in that the temperature sensor is installed on the left and right sides of the indoor unit, and the position of the indoor wind direction is adjusted by the temperature difference detected by the two temperature sensors. Therefore, the present invention sets the range according to the left / right temperature difference, and sets the wind direction adjusting position in each range. In this way, the temperature difference between the room temperature detected from the left temperature sensor and the right temperature sensor is calculated based on the preset temperature range and the wind direction control position, and the wind direction control position is set accordingly. In addition, the present invention is characterized in that the cooling operation is controlled based on the average temperature of the temperatures detected from the two temperature sensors.

As described above, the indoor fan control method of the air conditioner according to the present invention can calculate a more accurate indoor temperature using two temperature sensors, compared to the conventional method of detecting the indoor temperature using one temperature sensor. There is an advantage.

In addition, the indoor fan control method of the air conditioner according to the present invention, by determining the indoor temperature based on the average value of the temperature detected from the two temperature sensors, and controlling the cooling operation using the average room temperature, the user's desired temperature There is an advantage that can perform a cooling operation closer to.

In addition, the indoor fan control method of the air conditioner according to the present invention, by adjusting the wind direction adjustment position to the left, right or the center, etc. based on the left / right room temperature difference detected from the left room temperature sensor and the right room temperature sensor, There is an advantage that can be adjusted to minimize the left / right temperature difference in the room.

From these advantages, the present invention can perform a more comfortable cooling operation, there is an effect that can further increase the reliability and performance for the product.

Claims (4)

Detecting a left temperature of the room; Detecting a right temperature of the room; A third step of comparing the temperatures detected in the first and second steps and calculating a temperature difference; And a fourth step of adjusting the direction of the wind discharged into the room based on the temperature difference calculated in the third step. The method of claim 1 wherein: A fifth step of calculating an average room temperature based on the temperatures detected in the first and second steps; And a sixth step of controlling the cooling operation when the average room temperature calculated in the fifth step is higher than the desired temperature. The method of claim 1 or 2, wherein: The fourth step, The left and right temperature difference is divided into a predetermined range, and after setting the wind direction position in each range, it is determined which range the calculated temperature difference is, and the wind direction control of the air conditioner characterized in that the control to a predetermined wind direction position. Way. The method of claim 3 wherein: In the fourth step, the wind direction is controlled in the left direction when the temperature difference is positive (+) based on the left temperature, and the wind direction is controlled in the right direction when the temperature difference is negative (-) based on the left temperature. Wind direction control method of the air conditioner, characterized in that.