KR20200138978A - Apparatus for controlling air conditioner and method for controlling outdoor unit of air conditioner - Google Patents

Abstract

The present invention relates to an apparatus for controlling an air conditioner and a method for controlling an outdoor unit, wherein the apparatus for controlling an air conditioner diagnoses a shielding state of the outdoor unit based on discharge pressure of a compressor included in the outdoor unit and an input current for driving the compressor. To this end, the apparatus for controlling an air conditioner includes a driving unit, a detecting unit, and a control unit.

Description

Air conditioner control device and outdoor unit control method {APPARATUS FOR CONTROLLING AIR CONDITIONER AND METHOD FOR CONTROLLING OUTDOOR UNIT OF AIR CONDITIONER}

The present invention relates to an air conditioner control apparatus for controlling an air conditioner including an outdoor unit and an indoor unit, and an outdoor unit control method for controlling an outdoor unit equipped with a compressor.

The technology serving as the background of the present invention relates to diagnosis of an installation state of an outdoor unit of an air conditioner.

Most of the problems of cooling medicine occurring at the installation site of the air conditioner are the installation problems of the outdoor unit. Previously, it was only possible to check whether an error occurred during the test run operation, and it was not possible to check the deterioration of the cooling capacity according to the installation state of the outdoor unit. Accordingly, even if the outdoor unit is installed in a defective state, it was difficult to recognize and eliminate it, and it caused a problem that the air conditioner operates in a state in which the installation state is not normally performed. If the outdoor unit is operated in a poorly installed state, the cooling capacity is greatly reduced due to the shielding of the outdoor unit, so that the operation of the air conditioner is inevitably performed in a low efficiency.

That is, conventionally, a technology for checking the shielding state of the outdoor unit has not been proposed, and thus it is difficult to accurately diagnose the installation state of the outdoor unit. As a result, there is a concern that the air conditioner is operated in a state in which the cooling capacity of the outdoor unit is deteriorated, and this causes a problem in that the product performance is deteriorated and the customer's request cannot be satisfied.

An object of the present invention is to improve the conventional problems described above.

That is, the present invention is to provide an air conditioner control device and an outdoor unit control method capable of diagnosing the installation state of the outdoor unit.

In addition, the present invention is to provide an air conditioner control device and an outdoor unit control method capable of controlling the operation of the outdoor unit according to the installation state of the outdoor unit.

In addition, the present invention is to provide a control device for an air conditioner and a method for controlling an outdoor unit capable of preventing a decrease in cooling capacity and low-efficiency operation due to a shielding state of the outdoor unit.

The control apparatus and outdoor unit control method of an air conditioner according to the present invention for solving the above-described problems, diagnose the installation state of the outdoor unit based on the discharge pressure (high pressure) of the compressor and the input current for driving the compressor. To do it as a solution.

Specifically, the discharge pressure and input current of the compressor that are changed according to the shielding state of the outdoor unit are detected, and based on the discharge pressure and the input current, an abnormality in the installation state of the outdoor unit is diagnosed.

That is, the control apparatus and the outdoor unit control method of the air conditioner according to the present invention is a technical feature of diagnosing a shielding state of the outdoor unit based on a discharge pressure of a compressor included in the outdoor unit and an input current for driving the compressor Thus, the problem as described above is solved.

The technical features as described above may be applied to a device for controlling an outdoor unit equipped with a compressor, or a method for controlling an outdoor unit equipped with a compressor, and the present invention uses the above technical features as a problem solving means. An embodiment of a control apparatus for an air conditioner and a method for controlling an outdoor unit is provided.

The control apparatus of an air conditioner according to the present invention for solving the above-described problems is a control apparatus for an air conditioner that controls an air conditioner including an outdoor unit and an indoor unit, and a driving unit for driving a compressor provided in the outdoor unit And a detection unit for detecting the discharge pressure of the compressor and the input current of the driving unit, and a control unit for diagnosing an installation state of the outdoor unit based on a detection result of the detection unit and controlling the operation of the air conditioner according to the diagnosis result. do.

In addition, the outdoor unit control method according to the present invention for solving the above-described problem is an outdoor unit control method for controlling an outdoor unit equipped with a compressor, the step of starting the operation of the outdoor unit by driving the compressor, Detecting a discharge pressure and an input current of a driving unit driving the compressor, comparing it with a preset comparison criterion, diagnosing the installation state of the outdoor unit based on the comparison result, and controlling the operation of the outdoor unit according to the diagnosis result It includes the step of.

The embodiments of the air conditioner control apparatus and the outdoor unit control method according to the present invention as described above may be independently implemented, or may be implemented in combination with each of the embodiments. It may be modified and implemented in a form to which the above technical characteristics can be applied.

The control apparatus and outdoor unit control method of an air conditioner according to the present invention diagnoses the presence or absence of an abnormality in the installation state of the outdoor unit based on the discharge pressure and input current of the compressor that are changed according to the shielding state of the outdoor unit. There is an effect of being able to diagnose the installation status of the outdoor unit simply without a configuration for diagnosis.

In addition, the control device for the air conditioner and the method for controlling the outdoor unit according to the present invention have an effect of controlling the operation of the outdoor unit according to the installation state of the outdoor unit, thereby enabling appropriate operation control according to the installation state.

Accordingly, the control apparatus and the outdoor unit control method of an air conditioner according to the present invention have an effect of preventing a reduction in cooling capacity and low-efficiency operation due to the shielding state of the outdoor unit.

As a result, the control apparatus and the outdoor unit control method of an air conditioner according to the present invention have an effect that not only solves the conventional problem, but also enables the installation and operation of the outdoor unit to be accurately, stably and appropriately performed.

1 is a block diagram showing the configuration of a control device for an air conditioner according to the present invention.
2 is a block diagram showing the configuration of an air conditioner according to the present invention.
3 is a block diagram showing the configuration of an air conditioner according to the present invention.
4 is a block diagram showing a specific configuration of a control device for an air conditioner according to the present invention.
5 is a graph showing an example for explaining the concept of diagnosing an installation state of a control device for an air conditioner according to the present invention.
6 is a graph showing an example for explaining the concept of diagnosing the installation state of the control device of the air conditioner according to the present invention.
7 is a graph showing an example for explaining the concept of diagnosing an outdoor unit installation state of the control device for an air conditioner according to the present invention.
8 is a flow chart showing a process of diagnosing an outdoor unit installation state of the control device of the air conditioner according to the present invention.
9 is a flow chart showing the sequence of the outdoor unit control method according to the present invention.
10 is a flow chart showing a specific procedure according to an embodiment of the outdoor unit control method according to the present invention.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of the reference numerals, and redundant descriptions thereof are omitted, but implementations disclosed in the present specification In describing an example, if it is determined that a detailed description of a related known technology may obscure the subject matter of the embodiments disclosed in the present specification, the detailed description thereof will be omitted.

In addition, the accompanying drawings are for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited by the accompanying drawings, and all modifications included in the spirit and scope of the present invention It should be understood to include equivalents or substitutes.

First, a control device (hereinafter, referred to as a control device) of an air conditioner according to the present invention will be described.

The control device may be a control device that is included in an air conditioner that performs an air conditioner function and controls the operation of the air conditioner.

The control device may control the operation of the air conditioner by controlling one or more units included in the air conditioner according to the operation mode of the air conditioner.

As shown in FIG. 1, the control device 200 controls an air conditioner 100 including an outdoor unit 10 and an indoor unit 20 provided with a compressor 11 for compressing a refrigerant.

The control device 200 includes a driving unit 210 for driving a compressor provided in the outdoor unit 10, a detection unit 220 for detecting a discharge pressure of the compressor 11 and an input current of the driving unit 210, and And a control unit 230 for controlling the operation of the air conditioner 100 by controlling the driving unit 210 and the detection unit 220.

That is, the control device 200 drives the compressor 11 provided in the outdoor unit 10 through the driving unit 210, and detects the discharge pressure and the input current through the detection unit 220 In addition, by controlling the driving unit 210 and the detection unit 220 through the control unit 230, the air conditioning function of the air conditioner 100 may be controlled to be performed.

In the control device 200, the control unit 230 diagnoses the installation state of the outdoor unit 10 based on the detection result of the detection unit 220, and operates the air conditioner 100 according to the diagnosis result. Control.

More specifically, the control unit 230 includes the outdoor unit 10 based on the discharge pressure of the discharge unit through which the high-pressure refrigerant compressed by the compressor 11 is discharged and the input current of the driving unit 210 to which a large current is input. It is possible to diagnose whether the installation state of is normal or abnormal, and control the operation of the air conditioner 100 according to the diagnosis result.

That is, the control device 200 is the installation state of the outdoor unit 10 based on the discharge pressure of the discharge part corresponding to the high-pressure part of the compressor 11 and the input current of the driving part 210 to which a large current is input. Is diagnosed, and the operation of the air conditioner 100 may be controlled according to the diagnosis result.

Here, the installation state may mean a shielding state according to the installation environment of the outdoor unit 10.

In addition, the installation state may further include one or more of a driving state of the compressor 11 and the control device 200 and a power state of the control device 200.

Accordingly, the control device 200 may diagnose a shielding state according to the installation environment of the outdoor unit 10 based on the discharge pressure and the input current.

The air conditioner 100 that the control device 200 controls operation may be as shown in FIGS. 2 and 3.

As shown in FIG. 2, the air conditioner 100 includes an outdoor unit 10 and an indoor unit 20 connected to the outdoor unit 10 to perform air conditioning, and the outdoor unit 10 and the The indoor unit 20 may be connected through a refrigerant pipe 30.

FIG. 2 shows an example of a stand type air conditioner, and the air conditioner 100 may be a wall-mounted type, a ceiling type, or a multi-type air conditioner in addition to the stand type air conditioner as shown in FIG. 2.

The air conditioner 100 including the outdoor unit 10, the indoor unit 20, and the refrigerant pipe 30 may include the compressor 11 in the outdoor unit 10, as shown in FIG. A refrigeration cycle consisting of an outdoor heat exchanger 12, an expansion valve 13, and an indoor heat exchanger 14 is provided, and the outdoor heat exchanger 12 sucks outside air on the top or side of the outdoor unit 10 A plurality of fans 15 for performing heat exchange with each other are installed, and the refrigerant pipe 30 for supplying cold water or hot water to the indoor unit 20 may be connected to the indoor heat exchanger 14, and the A refrigerant switching valve 16 may be provided at the outlet of the compressor 11 to convert the compressed refrigerant to the outdoor heat exchanger 12 or the indoor heat exchanger 14 according to operating conditions.

The air conditioner 100 configured as described above can be operated by switching to a heater in winter while operating as a cooler in summer.

The air conditioner 100 may be operated in a cooling operation mode operated by a cooler or a heating operation mode operated by a heater according to a setting of the operation mode.

When the air conditioner 100 is operated in the cooling operation mode, the refrigerant switching valve 16 guides the refrigerant compressed at high temperature and high pressure in the compressor 11 to the outdoor heat exchanger 12, The indoor unit that heats the heat by heat exchange with air in the outdoor heat exchanger (12) and heats it at low temperature and low pressure by the expansion valve (13), and then exchanges heat with water in the indoor heat exchanger (14), and uses the heat-exchanged water as a cooling heat source. (20) can be supplied.

In addition, when the air conditioner 100 is operated in the heating operation mode, the refrigerant switching valve 16 guides the refrigerant toward the indoor heat exchanger 14 so that the high-temperature and high-pressure refrigerant is transferred to the indoor heat exchanger Heat-exchanged with water in 14), the heat-exchanged water may be supplied to the indoor unit 20 which is used as a heating heat source.

The control device 200 for controlling the air conditioner 100 configured as described above may be as shown in FIG. 4.

FIG. 4 shows an example of the control device 200, and the control device 200 may further include a configuration other than the configuration illustrated in FIG. 4 or may include a configuration different from the configuration illustrated in FIG. 4. have.

The control device 200, as shown in FIG. 4, includes the driving unit 210, the detection unit 220, and the control unit 230, and includes one or more input means, and the air conditioner ( An input unit 240 for receiving a command for the operation of 100), an output unit 250 for outputting information on the operating state of the air conditioner 100, and the air conditioner ( One or more of the storage units 260 for storing data of 100) may be further included.

The driving unit 210 may drive units constituting the outdoor unit 10 or the indoor unit 20 according to a driving signal.

The driving unit 210 may include at least one of a compressor driving unit 211 for driving the compressor 11, a fan driving unit 212 for driving an outdoor fan or an indoor fan, and a valve driving unit 213 for driving valves. I can.

The compressor driving unit 211 may apply power or a driving signal to drive the compressor 11 to the compressor 11 based on the input current.

The compressor driving unit 211 may drive the compressor 11 by applying a driving signal for driving the compressor 11 to the compressor 11 in response to a control command from the control unit 230.

Accordingly, the driving unit 210 may drive the compressor 11 through the compressor driving unit 211.

The fan driving unit 212 may drive a fan motor such that an outdoor fan or an indoor fan rotates in response to a control command of the control unit 230.

The valve driving unit 213 may control opening/closing of at least one valve according to a command of the control unit 230, and may control an opening amount of the valve as necessary.

The detection unit 220 may include one or more sensors to detect the operating state of the air conditioner 100.

For example, the discharge pressure and the input current may be detected.

The detection unit 220 includes a temperature sensor 221 for detecting a temperature of the refrigerant pipe 30, a temperature of a refrigerant flowing into the compressor 11, a temperature of a refrigerant discharged from the compressor 11, an indoor temperature, and an outdoor temperature. ) Can be included.

The detection unit 220 further includes a pressure sensor 222 for sensing the refrigerant flowing into the compressor 11, the pressure of the refrigerant discharged from the compressor 11, and the pressure of the refrigerant pipe 30 can do.

Accordingly, the detection unit 220 may detect the discharge pressure through the pressure sensor 222.

The detection unit 220 also includes a rotation speed sensor 223 that detects a rotation speed of a motor that rotates the compressor 11, the outdoor fan, or the indoor fan, and is applied to the outdoor unit 10 or the indoor unit 20. The voltage of the input power, a voltage sensor 224 that senses the voltage applied to the compressor 11, the current of the input power applied to the outdoor unit 10 or the indoor unit 20, and applied to the compressor 11 One or more of the current sensors 225 for sensing current may be further included.

Accordingly, the detection unit 220 may detect the input current through the current sensor 225.

The detection unit 220 includes at least one of the temperature sensor 221 for detecting a temperature of the discharge part of the compressor 11 and a pressure sensor 222 for detecting the pressure of the discharge part, and the temperature sensor 221 The discharge pressure may be detected based on one or more of a sensing result of) and a sensing result of the pressure sensor 222.

For example, the temperature sensor 221 may detect the temperature of the discharge unit and calculate and detect the discharge pressure based on the temperature of the discharge unit, or the pressure sensor 222 may detect the pressure of the discharge unit.

The detection unit 220 may include a current sensor 225 that senses a current input to the driving unit 210 and detect the input current based on a sensing result of the current sensor 225.

The controller 230 may control the operation of the outdoor unit 10 and the indoor unit 20.

The control unit 230 controls the driving unit 210, the detection unit 220, the input unit 240, the output unit 250, and the storage unit 260 to control the outdoor unit 10 and the indoor unit. (20) operation can be controlled.

According to the operation of the air conditioner 100, the control unit 220, the driving unit 210, the detection unit 220, the input unit 240, the output unit 250, and the storage unit 260 Control, or the operation of the air conditioner 100 according to the control result of the driving unit 210, the detection unit 220, the input unit 240, the output unit 250, and the storage unit 260 Can be controlled.

For example, based on the result of detecting the discharge pressure and the input current by the detection unit 220, the installation state of the outdoor unit 10 is diagnosed, and the operation of the air conditioner 100 is controlled according to the diagnosis result. I can.

The input unit 240 may include one or more buttons, switches, and the like, and may receive a setting command, a driving command, and the like from a user.

The output unit 250 may include a display means for displaying various types of data, information, etc. as characters or images, an audio output means, and the like.

The storage unit 260 includes a memory such as an EEPROM, stores data necessary for outdoor and indoor unit operation, indoor fan control, valve control, and the like, and stores operation information and state information. In addition, the storage unit 160 may further store the self-diagnosis result.

In the control device 200 configured as described above, when the driving unit 210 drives the compressor 11, the detection unit 220 detects the discharge pressure and the input current, and the control unit ( 230) may diagnose whether the installation state of the outdoor unit 10 is normal or abnormal based on the detection result.

More specifically, by detecting the discharge pressure and the input current according to the shielding state of the outdoor unit 10, there is an abnormality in the installation state according to the shielding state of the outdoor unit 10 based on the discharge pressure and the input current. Can be diagnosed.

5 to 7 are graphs showing the state of the discharge pressure and the input current according to the shielding state of the outdoor unit 10, and FIG. 5 is a case where the outdoor unit 10 is not shielded, and FIG. 6 shows the outdoor unit 10 When the shielding state of is 50 [%], FIG. 7 shows the state of the discharge pressure and the input current when the shielding state of the outdoor unit 10 is 80 [%].

As shown in FIG. 5, when there is no shielding of the outdoor unit 10, that is, when there is no abnormality in the installation state of the outdoor unit 10, the discharge pressure (high pressure) gradually increases, and the indoor unit 20 The temperature at the inlet of the pipe of is maintained at 13.68 [℃], and the input current is maintained at 15.2 [A], which is 80 [%] of the maximum current limit, so that the operation of the outdoor unit 10 can be stably maintained.

On the other hand, as shown in FIG. 6, when the shielding state of the outdoor unit 10 is 50 [%], that is, when there is an abnormality in the installation state of the outdoor unit 10, the discharge pressure rapidly increases, The temperature at the inlet of the pipe is maintained at a high temperature of 17.36[℃], so that the cooling capacity is lowered, and the input current is maintained at 8.2[A], which is 43[%] of the maximum current limit, and the outdoor unit 10 operates This can be done inefficiently.

In addition, as shown in FIG. 7, when the shielding state of the outdoor unit 10 is 80 [%], that is, when the installation state of the outdoor unit 10 is poor, the discharge pressure rises rapidly. Abnormal pressure is generated, the temperature at the inlet of the pipe is rapidly changed, the cooling capacity is lowered, and the input current is maintained at 7.8 [A], which is 41 [%] of the maximum current limit, and the outdoor unit 10 is operated. This can be done unstable/inefficiently.

In this way, since the discharge pressure and the input current are changed according to the shielding state of the outdoor unit 10, the installation state of the outdoor unit 10 is diagnosed using the detection result of the discharge pressure and the input current. Can be.

The control unit 230 may compare the detection result with a preset reference pressure and a preset reference current, and diagnose the installation state according to the comparison result.

The controller 230 may diagnose the installation state by comparing a result of detecting the discharge pressure with the reference pressure, and comparing a result of detecting the input current with the reference current.

The reference pressure may be a maximum allowable pressure according to the refrigerant compressed by the compressor 11, and the reference current may be a current of a predetermined ratio compared to the maximum allowable current of the driving unit 210.

That is, the control unit 230 may diagnose the installation state by comparing the discharge pressure with a maximum allowable pressure and comparing the input current with a current of a predetermined ratio to the maximum allowable current.

Here, the reference current may be preferably set to a current of 50 [%] compared to the maximum allowable current.

The controller 230 may compare the input current with the reference current according to a result of comparing the discharge pressure with the reference pressure, and diagnose the installation state according to the comparison result.

That is, after comparing the discharge pressure and the reference pressure, the control unit 230 may compare the input current and the reference current according to the comparison result.

When the discharge pressure is less than the reference pressure, the controller 230 may diagnose that the installation state is normal.

When the discharge pressure is less than the reference pressure, the controller 230 determines that the compressor 11 operates normally because there is no abnormality in the installation state, and the discharge pressure is detected to be less than the reference pressure, It can be diagnosed that the installation state is normal.

When the discharge pressure is greater than or equal to the reference pressure, the control unit 230 may compare the input current with the reference current.

That is, when the discharge pressure is greater than or equal to the reference pressure, the control unit 230 may compare the input current with the reference current and diagnose the installation state according to the comparison result.

When the input current exceeds the reference current, the controller 230 may diagnose that the installation state is normal.

That is, when the discharge pressure is greater than or equal to the reference pressure and the input current exceeds the reference current, the compressor 11 operates normally because there is no abnormality in the installation state, and the input current Is determined to be detected as exceeding the reference current, it is possible to diagnose that the installation state is normal.

When the input current is less than or equal to the reference current, the controller 230 may diagnose that the installation state is abnormal.

That is, when the discharge pressure is greater than or equal to the reference pressure and the input current is less than or equal to the reference current, the controller 230 is abnormal in the installation state and the compressor 11 operates abnormally, so that the input current is When it is determined that it is detected below the reference current, it can be diagnosed that the installation state is abnormal.

The controller 230 may stop the operation of the outdoor unit 10 when it is diagnosed that the installation state is abnormal as a result of the diagnosis.

That is, when the discharge pressure is greater than or equal to the reference pressure and the input current is less than or equal to the reference current, the control unit 230 diagnoses that the installation state is abnormal and stops the operation of the outdoor unit 10. have.

When it is diagnosed that the installation state is abnormal, the controller 230 may stop driving the compressor 11.

That is, when it is diagnosed that the installation state is abnormal, the controller 230 may stop driving the compressor 11 in order to prevent low-efficiency operation of the outdoor unit 10.

The controller 230 may further stop driving the outdoor unit fan included in the outdoor unit 10.

That is, when it is diagnosed that the installation state is abnormal, the controller 230 may further stop driving the outdoor unit fan to prevent low-efficiency operation of the outdoor unit 10.

Accordingly, when the installation state of the outdoor unit 10 is not normal, the control device 200 stops driving of the compressor 11 and the outdoor unit fan, thereby stopping the operation of the outdoor unit 10 , It is possible to prevent low-efficiency operation of the outdoor unit 10 due to an abnormality in the installation state.

The process of diagnosing the installation state by the control device 200 may be performed as shown in FIG. 5.

When the outdoor unit 10 is installed outside and the indoor unit 20 is installed inside to complete the installation of the air conditioner 100, the control device 200 Driving control can be started.

When the operation of the air conditioner 100 starts, the driving unit 210 may drive the compressor 11 based on the input current to operate the outdoor unit 10.

The detection unit 220 may detect the discharge pressure (P1) after the compressor 11 is driven under the control of the driving unit 210 and transmit the detection result to the control unit 230.

The control unit 230 receives a result of the detection unit 220 detecting the discharge pressure (P1), compares the discharge pressure with the reference pressure (P2), and determines an abnormality in the installation state according to the comparison result. The presence or absence can be diagnosed.

As a result of comparing the discharge pressure and the reference pressure (P2), when the discharge pressure is less than the reference pressure, the control unit 230 may have no abnormality in the installation state until the comparison point of the discharge pressure and the reference pressure. It is diagnosed as being, and the driving state of the compressor 11 can be monitored (repeated from P2 -> P1 -> P2) through the detection result of the detection unit 220.

As a result of comparing the discharge pressure and the reference pressure (P2), when the discharge pressure is greater than or equal to the reference pressure, the detection unit 220 detects the input current (P3) and transmits the detection result to the control unit 230. I can deliver.

The control unit 230 receives the result of the detection unit 220 detecting the input current (P3), compares the input current with the reference current (P4), and determines an abnormality in the installation state according to the comparison result. The presence or absence can be diagnosed.

As a result of comparing the input current with the reference current (P4), when the input current exceeds the reference current, the controller 230 diagnoses that there is no abnormality in the installation state, and the air conditioner 100 ) Operation can be controlled.

As a result of comparing the input current with the reference current (P4), when the input current is less than or equal to the reference current, the controller 230 diagnoses that there is an abnormality in the installation state (P5), and the outdoor unit 10 ) Can be stopped.

In this case, the control unit 230 stops driving of the compressor 11 and the outdoor unit fan to prevent low-efficiency operation of the outdoor unit 10 due to an abnormality in the installation state, so that the outdoor unit 10 May cause the vehicle to stop operating.

The embodiment of the control device 200 as described above may be implemented by applying an outdoor unit control method to be described below, or may be implemented by applying the embodiment of the control device 200 to the outdoor unit control method.

Hereinafter, an embodiment of an outdoor unit control method (hereinafter referred to as a control method) according to the present invention will be described.

The control method is a method for controlling the compressor 11 of the outdoor unit 10 included in the air conditioner 100 as shown in FIG. 1 and can be applied to the control device 200 described above. In addition, it may be applied in addition to the control device 200 described above.

The control method may be a diagnostic method for diagnosing an installation state of the outdoor unit 10.

The control method may also be a method of diagnosing an installation state of the outdoor unit 10 and controlling the operation of the outdoor unit 10 according to the installation state.

The control method may also be a method for controlling the initial operation of the outdoor unit 10 after installation of the outdoor unit 10.

The control method may be a method in which the control device 200 described above controls the operation of the outdoor unit 10.

The control method may also be a method in which the control unit 230 of the control device 200 controls the operation of the outdoor unit 10.

The control method is a method of controlling the outdoor unit 10 equipped with a compressor 11, as shown in FIG. 1, and as shown in FIG. 9, the outdoor unit 10 is driven by driving the compressor 11. ) Starting the operation (S10), detecting the discharge pressure of the compressor 11 and the input current of the driving unit 210 driving the compressor 11, and comparing it with a preset comparison standard (S20) , Diagnosing the installation state of the outdoor unit 10 based on the comparison result (S30), and controlling the operation of the outdoor unit 10 based on the diagnosis result (S40).

The step (S10) of starting the operation of the outdoor unit 10 may be a step of controlling the initial operation start after the outdoor unit 10 is installed.

In the step (S10) of starting the operation of the outdoor unit 10, the driving unit 210 of the control device 200 drives the compressor 11 based on the input current, You can start driving.

The step of comparing (S20) with the comparison criterion includes detecting the discharge pressure and the input current after the operation of the outdoor unit 10 is started (S10), and comparing each of the discharge pressure and the input current with the comparison criterion. It may be a step to do.

In the comparing step (S20) with the comparison reference, the detection unit 220 detects each of the discharge pressure and the input current and transmits it to the control unit 230, and the control unit 230 performs the discharge pressure and the input current. Each of the currents may be compared to the comparison criteria.

Comparing the comparison with the reference (S20), as shown in Fig. 10, detecting the discharge pressure (S21), comparing the discharge pressure with a preset reference pressure (S22), the discharge pressure And detecting the input current according to the comparison result of the reference pressure (S23) and comparing the input current with a preset reference current (S24).

That is, in the step of comparing with the comparison standard (S20), after detecting the discharge pressure (S21), the discharge pressure is compared with the reference pressure (S22), and the comparison result of the discharge pressure and the reference pressure is Accordingly, the input current may be detected (S23), and the input current may be compared with the reference current (S24).

In the step of detecting the discharge pressure (S21), the detection unit 220 may detect the discharge pressure and transmit the detection result to the control unit 230.

In the comparing with the reference pressure (S22), the control unit 230 may compare the discharge pressure with the reference pressure included in the comparison standard.

In the comparing step (S22) with the reference pressure, the controller 230 diagnoses that there is no abnormality in the installation state when the discharge pressure is less than the reference pressure as a result of comparing the discharge pressure with the reference pressure ( S30) can be done.

In the comparing step (S22) with the reference pressure, the controller 230 compares the discharge pressure with the reference pressure, and when the discharge pressure is equal to or greater than the reference pressure, the input current from the detection unit 220 Upon receiving the detection result S23, the input current may be compared with the reference current (S24).

In the step of detecting the input current (S23), the detection unit 220 may detect the input current and transmit the detection result to the control unit 230.

In the comparing step S24 with the reference current, the control unit 230 may compare the input current with the reference current included in the comparison reference.

In the comparing step (S24) with the reference current, the controller 230 diagnoses that there is an abnormality in the installation state when the input current is less than or equal to the reference current as a result of comparing the input current with the reference current ( S30) can be done.

Diagnosing the installation state (S30) may be a step of diagnosing the installation state based on the comparison result of the comparison with the comparison criterion (S20).

In the step of diagnosing the installation state (S30), when the discharge pressure is greater than or equal to the reference pressure and the input current is less than or equal to the reference current as a result of the control unit 230 comparing it with the comparison reference, the installation state is It may be diagnosed as having an abnormality.

Controlling the operation of the outdoor unit 10 (S40) may be a step of controlling the operation of the outdoor unit 10 according to a diagnosis result of the installation state.

In the step of controlling the operation of the outdoor unit 10 (S40), the control unit 230 may control the operation of the outdoor unit 10 according to the diagnosis result.

In the controlling operation of the outdoor unit 10 (S40), when the diagnosis result indicates that the installation state is abnormal, the driving of the compressor 11 may be stopped.

In the controlling operation of the outdoor unit 10 (S40), when the diagnosis results in that the installation state is abnormal, the driving of the outdoor unit fan included in the outdoor unit 10 may be further stopped.

The step of starting the operation of the outdoor unit 10 by driving the compressor 11 (S10), by detecting the discharge pressure of the compressor 11 and the input current of the driving unit 210 driving the compressor 11 , Comparing with a preset comparison criterion (S20), diagnosing the installation state of the outdoor unit 10 based on the comparison result (S30), and controlling the operation of the outdoor unit 10 according to the diagnosis result ( The control method including S40) can be implemented as a computer-readable code on a medium on which a program is recorded. The computer-readable medium includes all types of recording devices storing data that can be read by a computer system. Examples of computer-readable media include HDD (Hard Disk Drive), SSD (Solid State Disk), SDD (Silicon Disk Drive), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. There is also a carrier wave (eg, transmission over the Internet). In addition, the computer may include the control unit 230.

In the embodiments of the air conditioner control apparatus and the compressor control method according to the present invention as described above, each of the embodiments may be implemented independently, or one or more embodiments may be combined. In addition, embodiments of the air conditioner control device and the compressor control method according to the present invention include all outdoor unit control devices, air conditioner control devices, air conditioner compressor control devices, Air conditioning system, air conditioning system control device, air conditioning system compressor control device, outdoor unit control method, air conditioning system control method, air conditioning system compressor control method, air conditioner operation control method, or compressor operation It can be applied to the control method and so on.

Although a specific embodiment according to the present invention has been described so far, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments and should not be defined by the scope of the claims to be described later, as well as the scope of the claims and equivalents.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited to the above embodiments, which is, if one of ordinary skill in the field to which the present invention belongs, various modifications and Transformation is possible. Accordingly, the idea of the present invention should be grasped only by the scope of the claims set forth below, and all equivalent or equivalent modifications thereof will be said to belong to the scope of the idea of the present invention.

10: outdoor unit 20: indoor unit
30: refrigerant pipe 100: air conditioner
200: control device 210: driving unit
220: detection unit 230: control unit

Claims (15)

In the control device of an air conditioner for controlling an air conditioner including an outdoor unit and an indoor unit,
A driving unit for driving a compressor provided in the outdoor unit;
A detection unit detecting a discharge pressure of the compressor and an input current of the driving unit; And
And a control unit for diagnosing an installation state of the outdoor unit based on a detection result of the detection unit and controlling the operation of the air conditioner according to the diagnosis result. The method of claim 1,
The detection unit,
The discharge pressure based on at least one of a sensing result of the temperature sensor and a sensing result of the pressure sensor, including at least one of a temperature sensor for detecting a temperature of the discharge part of the compressor and a pressure sensor for detecting a pressure of the discharge part The control device of the air conditioner, characterized in that detecting. The method of claim 1,
The detection unit,
And a current sensor that senses a current input to the driving unit, and detects the input current based on a sensing result of the current sensor. The method of claim 1,
The control unit,
Comparing the detection result with a preset reference pressure and a preset reference current, and diagnosing the installation state according to the comparison result. The method of claim 4,
The control unit,
And comparing the input current with the reference current according to a result of comparing the discharge pressure with the reference pressure, and diagnosing the installation state according to the comparison result. The method of claim 5,
The control unit,
When the discharge pressure is more than the reference pressure,
The control apparatus of an air conditioner, characterized in that comparing the input current with the reference current. The method of claim 5,
The control unit,
When the input current exceeds the reference current,
The control apparatus for an air conditioner, characterized in that diagnosing that the installation state is normal. The method of claim 5,
The control unit,
When the input current is less than the reference current,
The control device for an air conditioner, characterized in that diagnosing that the installation state is abnormal. The method of claim 1,
The control unit,
As a result of the diagnosis, when it is diagnosed that the installation state is abnormal,
A control device for an air conditioner, characterized in that stopping the operation of the outdoor unit. The method of claim 9,
The control unit,
A control device for an air conditioner, characterized in that stopping driving of the compressor. The method of claim 10,
The control unit,
The control apparatus of an air conditioner, further stopping driving of an outdoor unit fan included in the outdoor unit. In the outdoor unit control method for controlling an outdoor unit equipped with a compressor,
Driving the compressor to start operation of the outdoor unit;
Detecting a discharge pressure of the compressor and an input current of a driving unit driving the compressor, and comparing it with a preset comparison standard;
Diagnosing the installation state of the outdoor unit based on the comparison result: And
And controlling the operation of the outdoor unit according to a diagnosis result. The method of claim 12,
Comparing with the comparison criteria,
Detecting the discharge pressure;
Comparing the discharge pressure with a preset reference pressure;
Detecting the input current according to a comparison result of the discharge pressure and the reference pressure; And
And comparing the input current with a preset reference current. The method of claim 12,
Controlling the operation of the outdoor unit,
As a result of the diagnosis, when it is diagnosed that the installation state is abnormal,
An outdoor unit control method, characterized in that stopping the driving of the compressor. The method of claim 14,
Controlling the operation of the outdoor unit,
And further stopping driving of the outdoor unit fan included in the outdoor unit.

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