An air conditioner and a control method, control device and readable storage medium thereof

Abstract

The application provides an air conditioner and a control method, a control device and a readable storage medium thereof. The air conditioner comprises an outdoor fan, and the control method comprises: acquiring an operating parameter of the air conditioner in the case that the air conditioner executes an outdoor fan protection mode; judging a fault type of the outdoor fan according to the operating parameter; and controlling the air conditioner to execute a repair operation corresponding to the fault type. The application provides an air conditioner and a control method, a control device thereof, which can accurately identify the fault cause of the outdoor fan by judging the operating parameter of the air conditioner, provide a reasonable fault removal method, improve the automatic fault identification and automatic fault repair capability of the air conditioner, reduce the fault rate of the outdoor fan and improve the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioner, a control method and device thereof, and a readable storage medium. BACKGROUND

[0002] The outdoor fan of an air conditioner is an important component of heat exchange of the air conditioner. The outdoor fan is installed in an external environment and is prone to various faults such as dirt blocking and damage. The faults occur repeatedly, but the air conditioner has poor ability of automatic identification and automatic adjustment, which leads to frequent start and pause of the air conditioner and cannot properly solve the problem of the outdoor fan of the air conditioner, thereby affecting the experience of the user. SUMMARY

[0003] Therefore, the present application provides an air conditioner, a control method and device thereof, and a readable storage medium to improve the fault identification and self-repairing ability of the air conditioner. By obtaining the operating parameters of the air conditioner, the abnormal conditions of the operating parameters are determined, so that the fault causes are more accurately identified, the fault problem is timely solved, the repeated start and stop of the air conditioner are avoided, the hardware of the air conditioner is protected, and the experience of the user is improved.

[0004] To solve the above problems, the present application provides an air conditioner and a control method and device thereof. The air conditioner comprises an outdoor fan. The control method comprises: obtaining operating parameters of the air conditioner in the case that the air conditioner executes an outdoor fan protection mode; determining a fault type of the outdoor fan according to the operating parameters; and controlling the air conditioner to execute a repair operation corresponding to the fault type.

[0005] Compared with the prior art, the technical effects achieved by adopting the technical scheme are as follows: in the case that the air conditioner executes the fan protection mode, the operating parameters of the air conditioner are obtained, the fault causes of the outdoor fan can be more accurately determined, different repair operations are set according to different fault types, the fault is solved, and the experience of the user is improved.

[0006] Further, the operating parameters comprise: a current growth rate of the outdoor fan, and / or a high-pressure pressure of the air conditioner, and / or a saturation temperature of the air conditioner.

[0007] Compared with the prior art, the technical effects achieved by adopting the technical scheme are as follows: the current growth rate of the outdoor fan can reflect the working condition of the outdoor fan, the high-pressure pressure of the air conditioner can reflect the working state of the condenser of the air conditioner, the condenser operates by absorbing the energy of gas or steam, and the saturation temperature of the air conditioner refers to the temperature at which the refrigerant in the condenser is condensed from high-temperature gaseous refrigerant to liquid refrigerant. When the high-pressure pressure is too high and / or the saturation temperature is too high, it indicates that the air intake and / or air exhaust of the outdoor fan is abnormal, which leads to current overload of the outdoor fan.

[0008] Further, according to the running parameter of the air conditioner, the fault type of the outdoor fan is judged, specifically including: comparing the running parameter with the parameter threshold value, and judging the fault type of the outdoor fan according to the comparison result.

[0009] Compared with the prior art, the technical effects achieved by adopting the technical scheme are: the size relationship between the running parameter and the parameter threshold value can reflect the fault type of the outdoor fan to a certain extent, so that the fault type can be more accurately identified, the high-pressure pressure and the saturation temperature value are high, which indicates that the fan rotation of the outdoor fan is blocked, and the fan rotation blockage can cause the current of the outdoor fan to be too high, the current growth rate to be too large, and a single running parameter cannot accurately identify the fault cause, so multiple running parameters need to be obtained to accurately judge the fault type.

[0010] Further, the air conditioner further comprises an outdoor heat exchanger, the running parameter comprises: the current growth rate of the outdoor fan and the high-pressure pressure of the air conditioner, and according to the running parameter, the fault type of the outdoor fan is judged, specifically including: comparing the current growth rate with the growth rate threshold value, and comparing the high-pressure pressure with the pressure threshold value; in the case that the current growth rate is greater than the growth rate threshold value and the high-pressure pressure is greater than the pressure threshold value, it is judged that the fault type is a first type of fault; in the case that the current growth rate is less than the growth rate threshold value and the high-pressure pressure is less than the pressure threshold value, it is judged that the fault type is a second type of fault; wherein the first type of fault is that the air inlet and / or the air outlet of the outdoor unit of the air conditioner is abnormal, and the second type of fault is that the efficiency of the outdoor heat exchanger is abnormal.

[0011] Compared with the prior art, the technical effects achieved by adopting the technical scheme are: the current growth rate is compared with the growth rate threshold value, and the high-pressure pressure is compared with the pressure threshold value, the mathematical operation of the two is not affected by the order, when the current growth rate is greater than the growth rate threshold value, the current of the outdoor fan grows slowly, the output power of the outdoor fan is reduced, at the same time, the high-pressure pressure is greater than the pressure threshold value, the air inlet and / or the air outlet of the outdoor fan is abnormal, it is judged that the outdoor fan is a first type of fault, and the air inlet and / or the air outlet is blocked. When the current growth rate is less than the growth rate threshold value, the current of the outdoor fan grows too fast, and the high-pressure pressure is less than the pressure threshold value, there is foreign matter between the fans of the outdoor fan, it is judged that the outdoor fan is a second type of fault, and the outdoor heat exchanger of the outdoor fan is abnormal.

[0012] Further, in the case that the fault type is a first type of fault, the repair operation comprises: checking whether the air inlet and / or the air outlet is blocked and / or blocked by foreign matter; in the case that the fault type is a second type of fault, the repair operation comprises: controlling the outdoor fan to reverse.

[0013] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: in the case of a first type of fault of the outdoor fan, the air inlet and / or air outlet of the outdoor fan is checked to check whether the air inlet and / or air outlet is blocked or shielded by foreign matter, so that the air inlet and / or air outlet is abnormal, and timely repair operation is provided to avoid long-term abnormal operation of the air conditioner and damage to hardware, thereby reducing the maintenance cost; in the case of a second type of fault of the outdoor fan, the outdoor fan is seriously dirty and blocked, the outdoor fan is controlled to reverse to remove the dirty and blocked foreign matter, thereby avoiding manual cleaning of the outdoor fan by the user and increasing the safety in use.

[0014] Further, after the air conditioner is controlled to perform the repair operation corresponding to the fault type, the control method further includes: determining whether the outdoor fan fault is removed; in the case where the outdoor fan fault is not removed, controlling the air conditioner to perform a target protection mode, wherein the target protection mode includes: controlling the outdoor fan to reduce the frequency, and / or controlling the air conditioner to stop running, and in the case where the outdoor fan fault is removed, controlling the air conditioner to keep running.

[0015] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: after the repair operation is performed, it is determined whether the outdoor fan fault is removed to verify the effect of the repair operation, in the case where the outdoor fan fault is not removed, the target protection mode is performed to protect the hardware of the air conditioner from being damaged by adjusting the frequency of the outdoor fan and / or stopping the air conditioner, and in the case where the outdoor fan fault is removed, the air conditioner continues to run, thereby improving the experience of the user.

[0016] Further, the determination of whether the outdoor fan fault is removed specifically includes: obtaining a real-time current value of the outdoor fan, obtaining a protection current value of the outdoor fan, obtaining a calculation value by subtracting the real-time current value from the protection current value, and comparing the calculation value with a first standard value; in the case where the calculation value is greater than the first standard value, the outdoor fan protection mode is not triggered, and it is determined that the outdoor fan fault is removed; and in the case where the calculation value is less than or equal to the first standard value, it is determined that the outdoor fan fault is not removed.

[0017] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: the calculation value is compared with the first standard value, if the calculation value is less than or equal to the first standard value, the real-time current of the outdoor fan does not meet the requirement for normal operation of the outdoor fan, and thus the outdoor fan fault is not removed, and if the calculation value is greater than the first standard value, the real-time current of the outdoor fan meets the requirement for normal operation of the outdoor fan, and thus the outdoor fan fault is removed, thereby verifying the effect of the repair operation, and the running state of the outdoor fan can be determined in time, thereby improving the experience of the user.

[0018] Further, the target mode specifically includes: controlling the frequency of the outdoor fan to reduce at a target speed; obtaining a real-time current value of the outdoor fan, and obtaining a calculation value by subtracting the real-time current value from a protection current value of the outdoor fan; comparing the calculation value with a second standard value; and in the case that the calculation value is less than or equal to the second standard value, continuously reducing the frequency of the outdoor fan, and comparing again until the calculation value is greater than the second standard value, and stopping the frequency reduction.

[0019] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: the frequency of the outdoor fan is reduced at a target speed of 1-5 Hz per second, while the real-time current of the outdoor fan is continuously detected, and a calculation value is obtained by calculation, and the calculation value is compared with a second standard value until the calculation value is greater than the second standard value, and the total sum of the frequency reduction cannot be greater than 10 Hz.

[0020] Further, the present application provides a control device, comprising: a control module, the control module is used for receiving various signals and outputting control instructions; a current detection module, the current detection module detects current and generates data, and transmits the data to the control module; a temperature detection module, the temperature detection module detects the temperature of each component and generates data, and transmits the data to the control module; and a pressure detection module, the pressure detection module detects the high pressure of the air conditioner.

[0021] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: the control device comprises: a control module, a current detection module, a temperature detection module and a pressure detection module, the control module sends instructions and judges the fault condition of the air conditioner, avoids repeated shutdown and restart of the air conditioner, improves the experience of the user, and also protects the hardware of the air conditioner to a certain extent, and avoids damage to the hardware.

[0022] The present application also provides an air conditioner, comprising: an air conditioner body and a control device, the control device is arranged in the air conditioner body and controls the operation of the air conditioner, wherein the control device can execute the control method of the air conditioner.

[0023] The air conditioner of the present application implements the control method of the air conditioner of any one of the technical schemes of the present application, and therefore has all the beneficial effects of the control method of the air conditioner of any one of the technical schemes of the present application, which will not be repeated here.

[0024] The present application also provides a readable storage medium, which comprises a stored computer program, wherein when the computer program is run by a processor, the device where the storage medium is located executes the control method of the air conditioner.

[0025] The readable storage medium of the present application implements the control method of the air conditioner of any one of the technical schemes of the present application, and therefore has all the beneficial effects of the control method of the air conditioner of any one of the technical schemes of the present application, which will not be repeated here.

[0026] After the technical solution of the present application is adopted, the following technical effects can be achieved:

[0027] (1) The size relationship between the operating parameters and the parameter threshold value can reflect the fault type of the outdoor fan to some extent, so that the fault type can be more accurately identified;

[0028] (2) The effect of the repair operation is verified, the operating condition of the outdoor fan can be grasped in time, and the user experience is improved;

[0029] (3) The control module sends instructions and judges the fault condition of the air conditioner, avoids repeated shutdown and restart of the air conditioner, improves the user experience, and also protects the hardware of the air conditioner to some extent, avoiding hardware damage. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The first flowchart of the control method of the air conditioner provided by the present application.

[0031] Figure 2 The second flowchart of the control method of the air conditioner provided by the present application.

[0032] Figure 3 The composition schematic diagram of the control device.

[0033] Figure 4 The composition schematic diagram of the air conditioner.

[0034] Explanation of reference signs:

[0035] 100: control device; 110: control module; 120: current detection module; 130: temperature detection module; 140: pressure detection module; 200: air conditioner body. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0037] Specifically, the present application provides a control method of an air conditioner, the air conditioner comprising an outdoor fan, the control method comprising: in the case that the air conditioner executes an outdoor fan protection mode, acquiring an operating parameter of the air conditioner, judging a fault type of the outdoor fan according to the operating parameter, and controlling the air conditioner to execute a repair operation corresponding to the fault type.

[0038] As shown in the accompanying drawings, Figure 1 when the air conditioner executes the fan protection mode,

[0039] S100, the air conditioner executes a fan protection mode;

[0040] S200, an operating parameter of the air conditioner is acquired;

[0041] S300, a fault type of the outdoor fan is judged;

[0042] S400, a repair operation corresponding to the fault type is executed;

[0043] The operating parameter of the air conditioner is acquired, and the operating parameter is judged to determine the fault cause of the outdoor fan. Different repair operations are adopted for different fault causes, and the corresponding repair operation is executed to improve the experience of the user.

[0044] For example, the operating parameter includes: a current growth rate of the outdoor fan, and / or a high-pressure pressure of the air conditioner, and / or a saturation temperature of the air conditioner.

[0045] Specifically, the current growth rate of the outdoor fan can be used to judge the operating condition of the outdoor fan. Therefore, a current sensor is installed to acquire the current growth rate of the outdoor fan. The high-pressure pressure of the air conditioner refers to the condensing pressure, which is directly acquired by a pressure sensor. The saturation temperature of the air conditioner refers to the condensing temperature, which is monitored by a temperature sensor. The condensing temperature rises, and the condensing pressure rises relatively. The two correspond to each other.

[0046] Preferably, the air conditioner further includes an outdoor unit heat exchanger. The operating parameter includes the current growth rate of the outdoor fan and the high-pressure pressure of the air conditioner. According to the operating parameter, the fault type of the outdoor fan is judged. Specifically, the current growth rate is compared with a growth rate threshold value in size, and the high-pressure pressure is compared with a pressure threshold value in size. In the case that the current growth rate is greater than the growth rate threshold value and the high-pressure pressure is greater than the pressure threshold value, it is judged that the fault type is a first type of fault. In the case that the current growth rate is less than the growth rate threshold value and the high-pressure pressure is less than the pressure threshold value, it is judged that the fault type is a second type of fault. The first type of fault is that the air inlet and / or the air outlet of the outdoor unit of the air conditioner is abnormal, and the second type of fault is that the efficiency of the outdoor unit heat exchanger is abnormal.

[0047] Specifically, in the case that the current growth rate is greater than the growth rate threshold value and the high-pressure pressure is greater than the pressure threshold value, the current growth is too fast, and the high-pressure pressure is too large, which indicates that the operating load of the outdoor fan is too high, the air volume is abnormal, the heat exchange effect is poor, and the outdoor fan has the first type of fault. In the case that the current growth rate is less than the growth rate threshold value and the high-pressure pressure is less than the pressure threshold value, the current growth is slow, the air inlet and / or the air outlet of the outdoor fan is normal, and the high-pressure pressure is small. The outdoor fan has the second type of fault. The outdoor unit heat exchanger of the outdoor fan is checked to check the dirty and blocked condition of the outdoor unit heat exchanger.

[0048] Specifically, in the case of the fault type being the first type of fault, the repair operation includes checking whether the air inlet and / or the air outlet is blocked and / or clogged by foreign matter; in the case of the fault type being the second type of fault, the repair operation includes controlling the outdoor fan to reverse.

[0049] Specifically, in the case of the first type of fault, it is checked whether the air inlet and / or the air outlet of the outdoor fan is blocked by foreign matter, which blocks the air inlet and / or the air outlet and causes abnormal air volume, and in the case of the second type of fault, the outdoor fan is reversed to remove foreign matter between the fans of the outdoor fan, thereby avoiding manual cleaning of the outdoor fan and improving the safety of use.

[0050] After the air conditioner is controlled to perform the repair operation corresponding to the fault type, the control method further includes: judging whether the outdoor fan fault is resolved; in the case that the outdoor fan fault is not resolved, controlling the air conditioner to perform a target protection mode, wherein the target protection mode includes: controlling the outdoor fan to reduce the frequency, and / or controlling the air conditioner to stop; in the case that the outdoor fan fault is resolved, controlling the air conditioner to keep running.

[0051] After the air conditioner performs the repair operation, it is necessary to judge whether the outdoor fan fault is resolved, which improves the reliability of the repair operation, in the case that the outdoor fan fault is not resolved, the air conditioner performs a target protection mode, which protects the hardware of the air conditioner by reducing the frequency and / or stopping, thereby avoiding damage to the hardware of the air conditioner and increasing the cost of maintenance, in the case that the outdoor fan fault is resolved, the air conditioner keeps running.

[0052] For example, judging whether the outdoor fan fault is resolved specifically includes: detecting the real-time current of the outdoor fan, obtaining a calculation value by calculating the real-time current, and comparing the calculation value with a first standard value; in the case that the calculation value is greater than the first standard value, it is judged that the outdoor fan fault is resolved; in the case that the calculation value is less than or equal to the first standard value, it is judged that the outdoor fan fault is not resolved.

[0053] Preferably, the first standard value is 0.1A, and the first standard value is used to judge whether the outdoor fan fault is resolved. The real-time current value of the outdoor fan is obtained, the calculation value is obtained by subtracting the protection current value of the outdoor fan from the real-time current value, and the calculation value is compared with the first standard value, in the case that the calculation value is greater than the first standard value, the outdoor fan fault is resolved, in the case that the calculation value is less than or equal to the first standard value, the outdoor fan fault is not resolved, the difference between the real-time current value of the outdoor fan and the protection current value of the outdoor fan is small, the real-time current value is large, and is close to the protection current value, and then it is inferred that the outdoor fan fault is not resolved.

[0054] Specifically, the target mode comprises: controlling the frequency of the outdoor fan to reduce at a target speed; the standard value is a difference between a real-time current value of the outdoor fan in a normal operating state and a protection current value of the outdoor fan; obtaining the real-time current value of the outdoor fan, and obtaining a calculation value by subtracting the real-time current value from the protection current value of the outdoor fan; comparing the calculation value with the second standard value, and continuously reducing the frequency of the outdoor fan and comparing again until the calculation value is greater than the second standard value in the case that the calculation value is less than or equal to the second standard value.

[0055] Specifically, in the case that the calculation value is less than the second standard value, the outdoor fan is reduced in frequency, and the frequency is reduced by 1-5 Hz each time until the calculation value is greater than the second standard value, and the frequency reduction is stopped.

[0056] Preferably, the second standard value is 0.1 A, wherein the second standard value can be the same as the first standard value.

[0057] Preferably, the outdoor fan is reduced in frequency by 2 Hz each time, so as to avoid that the frequency reduction is too large to trigger other protection systems of the air conditioner, and meanwhile, considering the system design margin, the total of the frequency reduction is 10 Hz, so as to avoid that the total of the frequency reduction is too large to affect the use effect of the air conditioner, trigger other protection devices and affect the user experience.

[0058] Preferably, in the case that the total of the frequency reduction is greater than 10 Hz and / or the air conditioner enters the outdoor fan protection mode again and / or the calculation value is still less than the standard value, the air conditioner is stopped, so as to avoid that other hardware is damaged and the maintenance cost is increased.

[0059] As shown in FIG. 1, Figure 2 the control method of the air conditioner according to the embodiment of the present application specifically comprises:

[0060] S100, the air conditioner executes a fan protection mode;

[0061] S200, obtaining an operating parameter of the air conditioner;

[0062] S300, comparing the operating parameter with a parameter threshold value to determine a fault type;

[0063] wherein m is a current growth rate, M is a growth rate threshold value, n is a high-pressure pressure, and N is a pressure threshold value.

[0064] S400 comprises S410 and S420;

[0065] S410, checking an air inlet and / or an air outlet of the outdoor fan;

[0066] S420, controlling the outdoor fan to reverse to perform self-cleaning;

[0067] S500, determining whether the fault is removed;

[0068] S600, reduce the frequency of the outdoor fan;

[0069] S700, determine whether the fault is removed;

[0070] Wherein, after the frequency reduction, it is determined again whether the outdoor fan fault is removed, to ensure the implementation effect of the repair operation.

[0071] S710, air conditioner shutdown protection;

[0072] Wherein, after S700, the outdoor fan fault is still not removed, and the air conditioner is shutdown protected.

[0073] S720, successful self-repair, and the air conditioner continues to run.

[0074] Wherein, after S700, the outdoor fan fault is removed, and the air conditioner continues to run.

[0075] Specifically, the embodiment of the present application further provides a control device, specifically comprising: a control module 110, the control module 110 is used for receiving various signals and outputting control instructions; a current detection module 120, the current detection module 120 detects the current and generates data, and transmits the data to the control module 110; a temperature detection module 130, the temperature detection module 130 detects the temperature of each component and generates data, and transmits the data to the control module 110; a pressure detection module 140, the pressure detection module 140 detects the high pressure of the air conditioner.

[0076] Specifically, as shown in the accompanying Figure 3 The control device is provided with a plurality of modules, obtains the data required for judging the outdoor fan fault type, can more accurately judge the outdoor fan fault type, executes the corresponding repair operation according to the fault type, and improves the experience of the user.

[0077] The embodiment further provides an air conditioner, as shown in the accompanying Figure 4 It comprises: an air conditioner body 200, a control device 100, and the control device 100 can execute the control method of the air conditioner.

[0078] Specifically, the air conditioner of the embodiment of the present application realizes the steps of the control method of the air conditioner of any embodiment of the present application, thus having all the beneficial effects of the control method of the air conditioner of any embodiment of the present application, which will not be repeated here.

[0079] The embodiment provides a readable storage medium, comprising a stored computer program, which controls the device where the storage medium is located to execute the control method of the air conditioner of any technical solution in the embodiment of the present application when the computer program is run by a processor.

[0080] The readable storage medium of the embodiment of the present application implements the steps of the control method of the air conditioner of any embodiment of the present application, thus having all the beneficial effects of the control method of the air conditioner of any embodiment of the present application, which will not be described herein again.

[0081] In several embodiments provided in the present application, it should be understood that the disclosed apparatus and method can also be implemented in other manners. The described apparatus embodiment is merely illustrative. For example, in various embodiments of the present application, each function module can be integrated into a single independent part, or each module can exist alone, or two or more modules can be integrated into a single independent part.

[0082] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method of an air conditioner, characterized by, The air conditioner comprises an outdoor fan, and the control method comprises: In the case that the air conditioner executes an outdoor fan protection mode, an operating parameter of the air conditioner is acquired; According to the operating parameter, a fault type of the outdoor fan is judged; A repair operation corresponding to the fault type is controlled to be executed by the air conditioner; The air conditioner further comprises an outdoor heat exchanger, the operating parameter comprises a current growth rate of the outdoor fan and a high-pressure pressure of the air conditioner, and according to the operating parameter, the fault type of the outdoor fan is judged, specifically comprising: The current growth rate is compared with a growth rate threshold value in size, and the high-pressure pressure is compared with a pressure threshold value in size; In the case that the current growth rate is greater than the growth rate threshold value and the high-pressure pressure is greater than the pressure threshold value, the fault type is judged to be a first type of fault; In the case that the current growth rate is less than the growth rate threshold value and the high-pressure pressure is less than the pressure threshold value, the fault type is judged to be a second type of fault; The first type of fault is that an air inlet and / or an air outlet of an outdoor unit of the air conditioner is abnormal in air volume, and the second type of fault is that an efficiency of the outdoor heat exchanger is abnormal; In the case that the fault type is the first type of fault, the repair operation comprises checking whether the air inlet and / or the air outlet is blocked by shielding and / or foreign matter; In the case that the fault type is the second type of fault, the repair operation comprises controlling the outdoor fan to reverse.

2. The control method of the air conditioner according to claim 1, characterized by, The operating parameter comprises: The current growth rate of the outdoor fan, and / or the high-pressure pressure of the air conditioner, and / or a saturation temperature of the air conditioner.

3. The control method of the air conditioner according to claim 1, wherein According to the operating parameter, the fault type of the outdoor fan is judged, specifically comprising: The operating parameter is compared with a parameter threshold value, and the fault type of the outdoor fan is judged according to a comparison result.

4. The control method of the air conditioner according to claim 1, wherein After the control of the air conditioner to execute the repair operation corresponding to the fault type, the control method further comprises: Whether the outdoor fan fault is removed is judged; In the case that the outdoor fan fault is not removed, a target protection mode is controlled to be executed by the air conditioner, wherein the target protection mode comprises controlling the outdoor fan to reduce frequency and / or controlling the air conditioner to stop; In the case that the outdoor fan fault is removed, the air conditioner is controlled to keep running.

5. The control method of the air conditioner according to claim 4, characterized by, The judgment of whether the outdoor fan fault is removed comprises: An instantaneous current value of the outdoor fan is acquired, the instantaneous current value is subtracted from a protection current value of the outdoor fan to obtain a calculation value, and the calculation value is compared with a first standard value; In the case that the calculation value is greater than the first standard value, it is judged that the outdoor fan fault is removed; in the case that the calculation value is less than or equal to the first standard value, it is judged that the outdoor fan fault is not removed.

6. The control method of the air conditioner according to claim 4, wherein The target protection mode specifically comprises: The frequency of the outdoor fan is controlled to be reduced at a target speed; The instantaneous current value of the outdoor fan is acquired, the instantaneous current value is subtracted from the protection current value of the outdoor fan to obtain a calculation value; comparing the calculated value with a second standard value; if the calculated value is less than or equal to the second standard value, continuously reducing the frequency of the outdoor fan at the target speed, and comparing again until the calculated value is greater than the second standard value, and stopping the frequency reduction.

7. A control device characterized by comprising: The control method of the air conditioner according to any one of claims 1 to 6, wherein the control device is arranged in the air conditioner, and specifically comprises: a control module (110) configured to receive various signals and output control instructions; a current detection module (120) configured to detect current and generate data, and transmit the data to the control module (110); a temperature detection module (130) configured to detect the temperature of each component and generate data, and transmit the data to the control module (110); a pressure detection module (140) configured to detect the high pressure of the air conditioner.

8. An air conditioner characterized by comprising: The air conditioner comprises: an air conditioner body (200); a control device (100) arranged in the air conditioner body (200) and configured to control the operation of the air conditioner; wherein the control device (100) can perform the control method of the air conditioner according to any one of claims 1 to 6.

9. A readable storage medium, characterized by, The readable storage medium comprises a stored computer program, wherein when the computer program is executed by a processor, the device where the storage medium is located performs the control method of the air conditioner according to any one of claims 1 to 6.

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