CN116812150B - An air conditioner and its control method, control device and readable storage medium. - Google Patents
An air conditioner and its control method, control device and readable storage medium.Info
- Publication number
- CN116812150B CN116812150B CN202310741020.3A CN202310741020A CN116812150B CN 116812150 B CN116812150 B CN 116812150B CN 202310741020 A CN202310741020 A CN 202310741020A CN 116812150 B CN116812150 B CN 116812150B
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- air conditioner
- outdoor fan
- fault
- controlling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing or receiving articles, liquids, or the like, in flight
- B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
- B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Aviation & Aerospace Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
本发明提供了一种空调器及其控制方法、控制装置和可读存储介质。空调器包括室外风机，控制方法包括：在空调器执行室外风机保护模式的情况下，获取空调器的运行参数；根据运行参数，判断室外风机的故障类型；控制空调器执行与故障类型相对应的修复操作。本发明提供一种空调器及其控制方法、控制装置，通过对空调器运行参数的判断，准确识别室外风机的故障原因，提供合理的解除故障的方法，能够提高空调器的自动识别故障和自动修复故障的能力，降低室外风机的故障率，提高用户的体验。
This invention provides an air conditioner and its control method, control device, and readable storage medium. The air conditioner includes an outdoor fan, and the control method includes: acquiring the air conditioner's operating parameters when the air conditioner is in outdoor fan protection mode; determining the fault type of the outdoor fan based on the operating parameters; and controlling the air conditioner to perform a repair operation corresponding to the fault type. This invention provides an air conditioner and its control method and control device that, by judging the air conditioner's operating parameters, accurately identifies the cause of outdoor fan faults, provides a reasonable method for troubleshooting, improves the air conditioner's ability to automatically identify and repair faults, reduces the failure rate of the outdoor fan, and improves the user experience.
Description
Technical Field
The present invention relates to the technical field of air conditioners, and in particular, to an air conditioner, a control method, a control device and a readable storage medium thereof.
Background
The outdoor fan of the air conditioner is an important part for heat exchange of the air conditioner, and is installed in an external environment, so that various faults such as dirt blockage or damage are easy to occur. The fault repeatedly appears many times, but the air conditioner automatic identification and automatically regulated ability is poor, leads to the frequent start suspension of air conditioner, can not properly solve the outdoor fan trouble problem of air conditioner, has influenced user's experience.
Disclosure of Invention
Therefore, the invention provides the air conditioner, the control method, the control device and the readable storage medium thereof, which are used for improving the fault identification and self-repairing capability of the air conditioner, and judging the abnormal condition of the operation parameters by acquiring the operation parameters of the air conditioner, so that the fault cause is more accurately identified, the fault problem is timely relieved, the repeated start and stop of the air conditioner are avoided, the hardware of the air conditioner is protected, and the user experience is improved.
In order to solve the problems, the invention provides an air conditioner, a control method and a control device thereof, wherein the air conditioner comprises an outdoor fan, and the control method comprises the steps of acquiring operation parameters of the air conditioner under the condition that the air conditioner executes an outdoor fan protection mode, judging the fault type of the outdoor fan according to the operation parameters, and controlling the air conditioner to execute repair operation corresponding to the fault type.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is that under the condition that the air conditioner executes the fan protection mode, the operation parameters of the air conditioner are obtained, the fault cause of the outdoor fan can be judged more accurately, different repair operations are set for different fault types, the faults are relieved, and the experience of a user is improved.
Further, the operating parameters include a current increase rate of the outdoor fan, and/or a high pressure of the air conditioner, and/or a saturation temperature of the air conditioner.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the current increasing rate of the outdoor fan can reflect the working condition of the outdoor fan, the high-pressure of the air conditioner can reflect the working condition of the condenser of the air conditioner, the condenser operates by absorbing the energy of gas or steam, the saturation temperature of the air conditioner refers to the temperature at which the refrigerant is in the condenser and is condensed into liquid refrigerant by the high-temperature gaseous refrigerant, wherein the high-pressure is too high and/or the saturation temperature is too high, which indicates that the air inlet volume and/or the air outlet volume of the outdoor fan are abnormal, and the current overload of the outdoor fan is caused.
Further, judging the fault type of the outdoor fan according to the operation parameters of the air conditioner, and specifically comprising the steps of comparing the operation parameters with parameter thresholds and judging the fault type of the outdoor fan according to comparison results.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the magnitude relation between the operation parameters and the parameter threshold can reflect the fault type of the outdoor fan to a certain extent, so that the fault type can be identified more accurately, the high-pressure and saturation temperature values are higher, the fan rotation of the outdoor fan is blocked, the current of the outdoor fan is too high due to the fact that the fan is blocked by rotation, the current growth rate is too high, and the fault cause cannot be identified accurately by a single operation parameter, so that a plurality of operation parameters are required to be acquired, and the fault type is accurately judged.
Further, the air conditioner further comprises an outdoor unit heat exchanger, wherein the operation parameters comprise the current increasing rate of the outdoor fan and the high-pressure of the air conditioner, and the fault type of the outdoor fan is judged according to the operation parameters, and specifically comprises the steps of comparing the current increasing rate with an increasing rate threshold value and comparing the high-pressure with a pressure threshold value; the method comprises the steps of judging that the fault type is one type of fault under the condition that the current increasing rate is larger than an increasing rate threshold value and the high-voltage pressure is larger than a pressure threshold value, judging that the fault type is two types of fault under the condition that the current increasing rate is smaller than the increasing rate threshold value and the high-voltage pressure is smaller than the pressure threshold value, wherein the one type of fault is abnormal air quantity of an air inlet of an outdoor unit and/or an air outlet of the outdoor unit of the air conditioner, and the two types of fault are abnormal efficiency of a heat exchanger of the outdoor unit.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the current increasing rate is compared with the increasing rate threshold value, the high-pressure is compared with the pressure threshold value, the mathematical operation of the current increasing rate and the pressure threshold value is not affected by the sequence, when the current increasing rate is larger than the increasing rate threshold value, the current of the outdoor fan is increased slowly, the output power of the outdoor fan is reduced, meanwhile, the high-pressure is larger than the pressure threshold value, the air inlet and/or the air outlet of the outdoor fan are abnormal, and the outdoor fan is judged to be in a fault type, and the air inlet and/or the air outlet are blocked. The current increasing rate is smaller than the increasing rate threshold, the current of the outdoor fan is increased too fast, and when the high-pressure is smaller than the pressure threshold, foreign matters exist between fans of the outdoor fan, the outdoor fan is judged to be in a second-class fault, and the heat exchanger of the outdoor fan is abnormal.
Further, in the case of a type of failure, the repair operation includes checking whether the air inlet and/or the air outlet is blocked and/or blocked by foreign matter, and in the case of a type of failure, the repair operation includes controlling the outdoor fan to reverse.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is that under the condition that the outdoor fan has a type of fault, the air inlet and/or the air outlet of the outdoor fan are checked, whether the air inlet and/or the air outlet are blocked or shielded by foreign matters is checked, the air inlet quantity and/or the air outlet quantity are abnormal, the repair operation is timely provided, the long-time abnormal operation of the air conditioner is avoided, the hardware is damaged, the maintenance cost is reduced, under the condition that the outdoor fan has a type of fault, the outdoor fan is seriously blocked, the outdoor fan is controlled to reversely rotate, the dirty and blocked foreign matters are removed, the outdoor fan is prevented from being manually cleaned by a user, and the use safety is improved.
Further, after the air conditioner is controlled to execute the repairing operation corresponding to the fault type, the control method further comprises the steps of judging whether the fault of the outdoor fan is relieved, and controlling the air conditioner to execute a target protection mode under the condition that the fault of the outdoor fan is not relieved, wherein the target protection mode comprises the steps of controlling the outdoor fan to reduce frequency and/or controlling the air conditioner to stop, and controlling the air conditioner to keep running under the condition that the fault of the outdoor fan is relieved.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is that after the repairing operation is executed, whether the outdoor fan fault is relieved is judged, the repairing operation effect is verified, the target protection mode is executed under the condition that the outdoor fan fault is not relieved, the hardware of the air conditioner is protected from being damaged by adjusting the frequency of the outdoor fan and/or the air conditioner is stopped, and the air conditioner continues to operate under the condition that the outdoor fan fault is relieved, so that the experience of a user is improved.
Further, judging whether the outdoor fan fault is relieved or not specifically comprises the steps of obtaining a real-time current value of the outdoor fan, carrying out difference between the real-time current value and a protection current value of the outdoor fan to obtain a calculated value, comparing the calculated value with a first standard value, judging that the outdoor fan fault is relieved without triggering an outdoor fan protection mode under the condition that the calculated value is larger than the first standard value, and judging that the outdoor fan fault is not relieved under the condition that the calculated value is smaller than or equal to the first standard value.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the calculated value is compared with the first standard value, if the calculated value is smaller than or equal to the first standard value, the real-time current of the outdoor fan does not meet the requirement of normal operation of the outdoor fan, the fault of the outdoor fan is not relieved, if the calculated value is larger than the first standard value, the real-time current of the outdoor fan meets the requirement of normal operation of the outdoor fan, the fault of the outdoor fan is relieved, the effect of repair operation is verified, the running state of the outdoor fan can be judged in time, and the experience of a user is improved.
Further, the target mode specifically comprises the steps of controlling the frequency of the outdoor fan to be reduced at a target speed, obtaining a real-time current value of the outdoor fan, differentiating the real-time current value with a protection current value of the outdoor fan to obtain a calculated value, comparing the calculated value with a second standard value, continuously reducing the frequency of the outdoor fan under the condition that the calculated value is smaller than or equal to the second standard value, comparing again until the calculated value is larger than the second standard value, and stopping reducing the frequency.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the frequency of the outdoor fan is reduced at the target speed, the target speed is 1-5 Hz per second, the real-time current of the outdoor fan is continuously detected, the calculated value is obtained through calculation, the calculated value is compared with the second standard value until the calculated value is larger than the second standard value, and the sum of the frequency reduction cannot be larger than 10Hz.
Further, the invention provides a control device which comprises a control module, a current detection module, a temperature detection module and a pressure detection module, wherein the control module is used for receiving various signals and outputting control instructions, the current detection module is used for detecting current and generating data and transmitting the data to the control module, the temperature detection module is used for detecting the temperature of each component and generating data and transmitting the data to the control module, and the pressure detection module is used for detecting the high pressure of an air conditioner.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is that the control device comprises a control module, a current detection module, a temperature detection module and a pressure detection module, wherein the control module sends an instruction and judges the fault condition of the air conditioner, so that the repeated stopping and restarting of the air conditioner are avoided, the experience of a user is improved, the hardware of the air conditioner is protected to a certain extent, and the hardware damage is avoided.
The invention also provides an air conditioner, which comprises an air conditioner body and a control device, wherein the control device is arranged in the air conditioner body and controls the air conditioner to run, and the control device can execute the control method of the air conditioner.
The air conditioner of the invention realizes the control method of the air conditioner of any technical scheme of the invention, so that the air conditioner has all the beneficial effects of the control method of the air conditioner of any technical scheme of the invention, and the description is omitted herein.
The present invention also provides a readable storage medium including a stored computer program, wherein the computer program when executed by a processor controls a device in which the storage medium is located to execute a control method of an air conditioner.
The readable storage medium of the present invention implements the control method of the air conditioner according to any one of the embodiments of the present invention, and therefore, has all the advantages of the control method of the air conditioner according to any one of the embodiments of the present invention, and will not be described herein.
After the technical scheme of the invention is adopted, the following technical effects can be achieved:
(1) The magnitude relation between the operation parameters and the parameter threshold can reflect the fault type of the outdoor fan to a certain extent, so that the fault type can be identified more accurately;
(2) The effect of the repair operation is verified, the running condition of the outdoor fan can be mastered in time, and the experience of a user is improved;
(3) The control module sends the instruction and judges the fault condition of the air conditioner, so that the repeated stopping and restarting of the air conditioner are avoided, the experience of a user is improved, the hardware of the air conditioner is protected to a certain extent, and the hardware is prevented from being damaged.
Drawings
Fig. 1 is a first flowchart of a control method of an air conditioner according to the present invention.
Fig. 2 is a second flowchart of a control method of an air conditioner according to the present invention.
Fig. 3 is a schematic diagram of the composition of the control device.
Fig. 4 is a schematic diagram of the composition of the air conditioner.
Reference numerals illustrate:
100 parts of control device, 110 parts of control module, 120 parts of current detection module, 130 parts of temperature detection module, 140 parts of pressure detection module and 200 parts of air conditioner body.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a control method of an air conditioner, the air conditioner comprises an outdoor fan, the control method comprises the steps of acquiring operation parameters of the air conditioner under the condition that the air conditioner executes an outdoor fan protection mode, judging the fault type of the outdoor fan according to the operation parameters, and controlling the air conditioner to execute repair operation corresponding to the fault type.
As shown in fig. 1, when the air conditioner performs a fan protection mode,
S100, executing a fan protection mode by the air conditioner;
S200, acquiring operation parameters of an air conditioner;
S300, judging the fault type of the outdoor fan;
S400, executing repair operation corresponding to the fault type;
the operation parameters of the air conditioner are obtained, the operation parameters are judged, so that the fault reason of the outdoor fan is determined, different repair operations are adopted for different fault reasons, corresponding repair operations are executed, and the experience of a user is improved.
The operating parameters include, for example, the rate of current increase of the outdoor fan, and/or the high pressure of the air conditioner, and/or the saturation temperature of the air conditioner.
Specifically, the current increasing rate of the outdoor fan can judge the running condition of the outdoor fan, so that the current sensor is arranged to obtain the current increasing rate of the outdoor fan, the high-pressure of the air conditioner is condensation pressure, the high-pressure of the air conditioner is directly obtained through the pressure sensor, the saturation temperature of the air conditioner is condensation temperature, the saturation temperature of the air conditioner is monitored through the temperature sensor, the condensation temperature is increased, and the condensation pressure is relatively increased, and the two correspond to each other.
Preferably, the air conditioner further comprises an outdoor unit heat exchanger, the operation parameters comprise the current increasing rate of the outdoor fan and the high-pressure of the air conditioner, and the fault type of the outdoor fan is judged according to the operation parameters, specifically comprising the steps of comparing the current increasing rate with an increasing rate threshold value and comparing the high-pressure with a pressure threshold value; the method comprises the steps of judging that the fault type is one type of fault under the condition that the current increasing rate is larger than an increasing rate threshold value and the high-voltage pressure is larger than a pressure threshold value, judging that the fault type is two types of fault under the condition that the current increasing rate is smaller than the increasing rate threshold value and the high-voltage pressure is smaller than the pressure threshold value, wherein the one type of fault is abnormal air quantity of an air inlet of an outdoor unit and/or an air outlet of the outdoor unit of the air conditioner, and the two types of fault are abnormal efficiency of a heat exchanger of the outdoor unit.
The method specifically illustrates that under the condition that the current increasing rate is larger than an increasing rate threshold value and the high-pressure is larger than a pressure threshold value, the current is increased too fast, the high-pressure is too large, the operation load of the outdoor fan is too high, the air quantity is abnormal, the heat exchange effect is poor, the outdoor fan has a fault type, under the condition that the current increasing rate is smaller than an increasing rate threshold value and the high-pressure is smaller than the pressure threshold value, the current is increased slowly, the air inlet and/or the air outlet of the outdoor fan are normal, the high-pressure is smaller, the outdoor fan has a fault type II, the outdoor fan heat exchanger is inspected, and the filth blockage condition of the outdoor fan heat exchanger is inspected.
Specifically, in the case of a type of failure, the repair operation includes checking whether the air inlet and/or the air outlet is blocked and/or blocked by foreign matter, and in the case of a type of failure, the repair operation includes controlling the outdoor fan to reverse.
The air quantity is abnormal because the air inlet and/or the air outlet of the outdoor fan are/is blocked under the condition that a type of faults occur, and the outdoor fan is reversed under the condition that a type of faults occur, so that the foreign matters between fans of the outdoor fan are removed, the outdoor fan is prevented from being cleaned manually by a user, and the use safety is improved.
After the air conditioner is controlled to execute the repairing operation corresponding to the fault type, the control method further comprises the steps of judging whether the fault of the outdoor fan is relieved, and controlling the air conditioner to execute a target protection mode under the condition that the fault of the outdoor fan is not relieved, wherein the target protection mode comprises the steps of controlling the outdoor fan to reduce frequency and/or controlling the air conditioner to stop, and controlling the air conditioner to keep running under the condition that the fault of the outdoor fan is relieved.
After the air conditioner executes the repairing operation, whether the outdoor fan fault is relieved or not needs to be judged, the reliability of the repairing operation is improved, the air conditioner executes a target protection mode under the condition that the outdoor fan fault is not relieved, the hardware of the air conditioner is protected through a mode of reducing frequency and/or stopping, the hardware damage of the air conditioner is avoided, the maintenance cost is increased, and the air conditioner keeps running under the condition that the outdoor fan fault is relieved.
For example, the method for judging whether the outdoor fan fault is relieved specifically comprises the steps of detecting real-time current of the outdoor fan, calculating the real-time current to obtain a calculated value, comparing the calculated value with a first standard value, judging that the outdoor fan fault is relieved when the calculated value is larger than the first standard value, and judging that the outdoor fan fault is not relieved when the calculated value is smaller than or equal to the first standard value.
Preferably, the first standard value is 0.1A, and whether the failure of the outdoor fan is released is judged by the first standard value. Acquiring a real-time current value of the outdoor fan, wherein the difference between the protection current value of the outdoor fan and the real-time current value is obtained, a calculated value is obtained, the calculated value is compared with a first standard value, the outdoor fan is relieved under the condition that the calculated value is larger than the first standard value, the outdoor fan is not relieved under the condition that the calculated value is smaller than or equal to the first standard value, the difference between the real-time current value of the outdoor fan and the protection current value of the outdoor fan is smaller, the real-time current value is larger, the real-time current value is closer to the protection current value, and further, the fact that the outdoor fan is not relieved is inferred.
The target mode comprises the steps of controlling the frequency of the outdoor fan to be reduced at a target speed, obtaining a real-time current value of the outdoor fan and a protection current value of the outdoor fan, obtaining a calculated value by means of the difference between the real-time current value and the protection current value of the outdoor fan, comparing the calculated value with a second standard value, continuously reducing the frequency of the outdoor fan under the condition that the calculated value is smaller than or equal to the second standard value, and comparing again until the calculated value is larger than the second standard value, and stopping frequency reduction.
Specifically, under the condition that the calculated value is smaller than the second standard value, the outdoor fan performs frequency reduction, frequency reduction is performed 1-5 Hz each time until the calculated value is larger than the second standard value, and frequency reduction is stopped.
Preferably, the second standard value is 0.1A, wherein the second standard value may have the same value as the first standard value.
Preferably, the outdoor fan is down-converted by 2Hz each time, so that the excessive down-conversion is avoided, other protection systems of the air conditioner are triggered, meanwhile, the total of the down-conversion is 10Hz in consideration of the design allowance of the system, the excessive down-conversion is avoided, the using effect of the air conditioner is influenced, other protection devices are triggered, and the experience of a user is influenced.
Preferably, when the total frequency reduction is greater than 10Hz and/or the air conditioner enters the outdoor fan protection mode again and/or the calculated value is still smaller than the standard value, the air conditioner is stopped, other hardware damage is avoided, and maintenance cost is increased.
As shown in fig. 2, the control method of the air conditioner according to the embodiment of the invention specifically includes:
s100, executing a fan protection mode by the air conditioner;
S200, acquiring operation parameters of an air conditioner;
S300, comparing the operation parameters with parameter thresholds, and judging the fault type;
where M is the current growth rate, M is the growth rate threshold, N is the high pressure, and N is the pressure threshold.
S400 includes S410 and S420;
s410, checking an air inlet and/or an air outlet of the outdoor fan;
s420, controlling the outdoor fan to rotate reversely, and performing self-cleaning;
s500, judging whether the fault is relieved;
s600, reducing the frequency of an outdoor fan;
s700, judging whether the fault is relieved;
after the frequency is reduced, whether the fault of the outdoor fan is relieved is judged again, and the implementation effect of the repairing operation is guaranteed.
S710, air conditioner shutdown protection;
after S700, the outdoor fan fault is not relieved, and the air conditioner is stopped for protection;
S720, successfully repairing the air conditioner automatically, and continuing to operate the air conditioner;
after S700, the outdoor fan is released, and the air conditioner continues to operate.
Specifically, the embodiment of the invention also provides a control device, which specifically comprises a control module 110, a current detection module 120, a temperature detection module 130, a pressure detection module 140 and a pressure detection module 140, wherein the control module 110 is used for receiving various signals and outputting control instructions, the current detection module 120 detects current and generates data and transmits the data to the control module 110, the temperature detection module 130 detects the temperature of each component and generates data and transmits the data to the control module 110, and the pressure detection module 140 detects the high-pressure of the air conditioner.
Specifically, as shown in fig. 3, the control device is provided with a plurality of modules, and obtains data required for judging the fault type of the outdoor fan, so that the fault type of the outdoor fan can be more accurately judged, and corresponding repair operation is executed according to the fault type, thereby improving the experience of a user.
The embodiment also provides an air conditioner, as shown in fig. 4, which comprises an air conditioner body 200 and a control device 100, wherein the control device 100 can execute the control method of the air conditioner.
Specifically, the air conditioner according to the embodiment of the present invention implements the steps of the control method of the air conditioner according to any embodiment of the present invention, so that the air conditioner according to any embodiment of the present invention has all the advantages of the control method of the air conditioner according to any embodiment of the present invention, and will not be described herein.
The embodiment provides a readable storage medium, which comprises a stored computer program, and when the computer program is executed by a processor, a device in which the storage medium is controlled to execute the control method of the air conditioner according to any one of the embodiments of the invention.
The readable storage medium according to the embodiment of the present invention implements the steps of the control method of the air conditioner according to any embodiment of the present invention, so that the method has all the advantages of the control method of the air conditioner according to any embodiment of the present invention, and is not described herein.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described embodiments of the apparatus are merely illustrative, and, for example, functional modules in various embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present invention.
Claims (9)
1. A control method of an air conditioner, the air conditioner including an outdoor fan, the control method comprising:
Acquiring operation parameters of the air conditioner under the condition that the air conditioner executes an outdoor fan protection mode;
judging the fault type of the outdoor fan according to the operation parameters;
Controlling the air conditioner to execute repair operation corresponding to the fault type;
the air conditioner further comprises an outdoor unit heat exchanger, the operation parameters comprise the current increasing rate of the outdoor fan and the high-pressure of the air conditioner, and the fault type of the outdoor fan is judged according to the operation parameters, and the air conditioner specifically comprises:
Comparing the current increase rate to an increase rate threshold and comparing the high pressure to a pressure threshold;
judging the fault type as a type of fault under the condition that the current growth rate is larger than the growth rate threshold and the high-voltage pressure is larger than the pressure threshold;
Judging that the fault type is a type II fault under the condition that the current increasing rate is smaller than the increasing rate threshold value and the high-voltage pressure is smaller than the pressure threshold value;
the first type of faults are abnormal air quantity of an air inlet of an outdoor unit of the air conditioner and/or air quantity of an air outlet of the outdoor unit, and the second type of faults are abnormal efficiency of a heat exchanger of the outdoor unit;
In the case that the fault type is the one of the first type of fault, the repair operation includes checking whether the air inlet and/or the air outlet is blocked and/or blocked by foreign matter;
and under the condition that the fault type is the second-class fault, controlling the outdoor fan to reversely rotate.
2. The control method of an air conditioner according to claim 1, wherein the operation parameters include:
The current increase rate of the outdoor fan, and/or the high pressure of the air conditioner, and/or the saturation temperature of the air conditioner.
3. The method for controlling an air conditioner according to claim 1, wherein the determining the fault type of the outdoor fan according to the operation parameter specifically includes:
and comparing the operation parameters with parameter thresholds, and judging the fault type of the outdoor fan according to the comparison result.
4. The control method of an air conditioner according to claim 1, wherein after said controlling said air conditioner to perform a repair operation corresponding to said failure type, said control method further comprises:
Judging whether the outdoor fan fault is relieved;
Under the condition that the outdoor fan fault is not relieved, controlling the air conditioner to execute a target protection mode, wherein the target protection mode comprises the steps of controlling the outdoor fan to reduce frequency and/or controlling the air conditioner to stop;
and under the condition that the fault of the outdoor fan is relieved, controlling the air conditioner to keep running.
5. The method for controlling an air conditioner according to claim 4, wherein the determining whether the outdoor fan malfunction is relieved comprises:
acquiring a real-time current value of the outdoor fan, carrying out difference between the real-time current value and a protection current value of the outdoor fan to obtain a calculated value, and comparing the calculated value with a first standard value;
And judging that the outdoor fan fault is not released when the calculated value is smaller than or equal to the first standard value.
6. The method for controlling an air conditioner according to claim 4, wherein the target protection mode specifically comprises:
controlling the frequency of the outdoor fan to be reduced at a target speed;
Acquiring a real-time current value of the outdoor fan, and performing difference between the real-time current value and a protection current value of the outdoor fan to obtain a calculated value;
Comparing the calculated value with a second standard value;
And continuously reducing the frequency of the outdoor fan at the target speed under the condition that the calculated value is smaller than or equal to the second standard value, and comparing again until the calculated value is larger than the second standard value, and stopping reducing the frequency.
7. A control apparatus comprising the control method of an air conditioner according to any one of claims 1 to 6, the control apparatus being provided in the air conditioner, comprising:
The control module (110) is used for receiving various signals and outputting control instructions;
a current detection module (120), wherein the current detection module (120) detects current and generates data, and transmits the data to the control module (110);
A temperature detection module (130), wherein the temperature detection module (130) detects the temperature of each component and generates data, and the data are transmitted to the control module (110);
And a pressure detection module (140), wherein the pressure detection module (140) detects the high-pressure of the air conditioner.
8. An air conditioner, characterized in that the air conditioner comprises:
an air conditioner body (200);
the control device (100) is arranged in the air conditioner body (200) and used for controlling the operation of the air conditioner;
wherein the control device (100) is capable of executing the control method of the air conditioner according to any one of claims 1 to 6.
9. A readable storage medium, characterized in that the readable storage medium comprises a stored computer program, wherein the computer program, when run by a processor, controls a device in which the storage medium is located to perform the control method of an air conditioner according to any one of claims 1-6.
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| JP4023249B2 (en) * | 2002-07-25 | 2007-12-19 | ダイキン工業株式会社 | Compressor internal state estimation device and air conditioner |
| CN107091517B (en) * | 2017-06-30 | 2023-09-12 | 珠海格力电器股份有限公司 | Protection control method and device of air conditioner unit and air conditioner unit |
| CN111609513B (en) * | 2020-05-13 | 2023-05-26 | 青岛海尔空调器有限总公司 | An air conditioner, its control method and computer-readable storage medium |
| CN113669850A (en) * | 2020-05-14 | 2021-11-19 | 青岛海尔空调电子有限公司 | Air conditioner and control method thereof |
| CN112606653A (en) * | 2020-12-07 | 2021-04-06 | 珠海格力电器股份有限公司 | Air conditioner fault monitoring method and device, storage medium and air conditioner |
| CN115235041B (en) * | 2022-07-18 | 2023-11-14 | 株洲麦格米特电气有限责任公司 | Air conditioner fault detection method and device and air conditioner |
| CN115388518B (en) * | 2022-08-25 | 2025-07-18 | 青岛海尔空调器有限总公司 | Fault early warning method and device for air conditioner, air conditioner and storage medium |
| CN115654651B (en) * | 2022-10-11 | 2024-07-16 | 珠海格力电器股份有限公司 | Fault detection method, device and system of pressure switch and air conditioning equipment |
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| CN110779160A (en) * | 2019-11-12 | 2020-02-11 | 广州华凌制冷设备有限公司 | Operation control method and device, air conditioner and storage medium |
| CN113324776A (en) * | 2021-04-25 | 2021-08-31 | 安徽嘉乐斯乐净化工程有限公司 | Detection device and detection method for air conditioning unit |
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