CN114198862A - Air conditioner control method and device and air conditioner - Google Patents

Air conditioner control method and device and air conditioner Download PDF

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Publication number
CN114198862A
CN114198862A CN202111421187.9A CN202111421187A CN114198862A CN 114198862 A CN114198862 A CN 114198862A CN 202111421187 A CN202111421187 A CN 202111421187A CN 114198862 A CN114198862 A CN 114198862A
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China
Prior art keywords
air conditioner
preset
current
indoor
temperature
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Granted
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CN202111421187.9A
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Chinese (zh)
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CN114198862B (en
Inventor
司跃元
顾超
刘义
雷晏瑶
张升
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Priority to CN202111421187.9A priority Critical patent/CN114198862B/en
Publication of CN114198862A publication Critical patent/CN114198862A/en
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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
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention discloses an air conditioner control method, a control device and an air conditioner, wherein the method comprises the following steps: acquiring the temperature of the indoor environment where an indoor unit of the air conditioner is positioned as the indoor temperature in the operation process of the air conditioner; acquiring the current of an indoor fan of an air conditioner as the current of the indoor fan; when the indoor temperature meets a preset temperature condition and the current of the inner fan meets a preset current condition, controlling the air conditioner to cut off a main power supply of the air conditioner, and then controlling the main power supply to supply power to the air conditioner, so that the air conditioner is powered on and restarted; the preset temperature conditions include: the difference value between the indoor temperature and the set temperature of the air conditioner exceeds a preset temperature difference range; the preset current conditions include: and the current of the inner fan is smaller than a preset current threshold value. The invention can solve the problem of inconvenience and untimely time for manually electrifying and starting the air conditioner on site after the air conditioner is in fault shutdown in a simple and reliable mode.

Description

Air conditioner control method and device and air conditioner
Technical Field
The invention belongs to the technical field of air conditioning, and particularly relates to an air conditioner control method, a control device and an air conditioner.
Background
The air conditioner can adjust the temperature, the humidity and the like of indoor air, provides a more comfortable indoor environment, and is very important electrical equipment in daily life.
During the operation of the air conditioner, if the air conditioner fails due to various reasons, the operation of the air conditioner is stopped. Some faults are temporary faults, and the faults can be relieved by powering up the air conditioner again. Therefore, after the air conditioner stops operating, manual operation is usually required to re-power the air conditioner and restart the air conditioner. Manual operation is not only inconvenient, but also has the following disadvantages: for users who do not know the working characteristics of the air conditioner, the problem of the air conditioner failure shutdown can not be solved in time by manually electrifying the air conditioner again, so that the air conditioner cannot be used in time; if the air conditioner is a large-scale air conditioner unit, the manual power-on device is located far outdoors, the power-on operation is not timely and convenient enough, the problem of the fault shutdown of the air conditioner cannot be solved in a short time, and the condition of the air conditioner on indoor air cannot be timely recovered.
Chinese patent application publication No. CN110388719A discloses a central air conditioning unit and a control method and device thereof, which determine whether a fault occurs according to various operating state parameters of the unit; and after the fault is judged, carrying out automatic reset control on the unit according to the automatic reset parameters. In the technical scheme of the patent application, a complex detection device is required to obtain the operating state parameters so as to judge the fault type and reset according to the reset parameters corresponding to the fault type, the scheme is complex to implement, and the configuration requirement on the air conditioner detection device is high. If the air conditioner lacks the corresponding detection device, the fault can not be judged and reset, and the reliability is low.
In view of the foregoing description of the prior art, a more convenient technical solution is needed to solve the inconvenience and untimely property that the air conditioner needs to be powered on manually in the field after the air conditioner is failed and stopped.
Disclosure of Invention
One of the objectives of the present invention is to provide a method and a device for controlling an air conditioner, which can solve the inconvenience and untimely problem that the air conditioner needs to be manually powered on and started on site after the air conditioner is failed and shut down in a simple and reliable manner.
In order to achieve the purpose, the air conditioner control method provided by the invention is realized by adopting the following technical scheme:
an air conditioner control method, the method comprising:
acquiring the temperature of the indoor environment where an indoor unit of the air conditioner is positioned as the indoor temperature in the operation process of the air conditioner; acquiring the current of an indoor fan of an air conditioner as the current of the indoor fan;
when the indoor temperature meets a preset temperature condition and the current of the inner fan meets a preset current condition, controlling the air conditioner to cut off a main power supply of the air conditioner, and then controlling the main power supply to supply power to the air conditioner, so that the air conditioner is powered on and restarted;
the preset temperature conditions include: the difference value between the indoor temperature and the set temperature of the air conditioner exceeds a preset temperature difference range;
the preset current conditions include: and the current of the inner fan is smaller than a preset current threshold value.
In one preferred embodiment, the preset current condition further includes: and the duration that the current of the inner fan is smaller than the preset current threshold reaches a first preset duration threshold.
In one preferred embodiment, the preset temperature difference is determined according to a temperature-reaching shutdown temperature difference of the air conditioner, and the preset temperature difference is not less than the temperature-reaching shutdown temperature difference.
In one preferred embodiment, in the operation process of the air conditioner, the temperature of the indoor environment where the indoor unit of the air conditioner is located is obtained as the indoor temperature; the method comprises the following steps of obtaining the current of an indoor fan of the air conditioner as the current of the indoor fan, specifically:
firstly, acquiring the indoor temperature, and judging whether the indoor temperature meets the preset temperature condition;
and obtaining the current of the indoor fan until the indoor temperature meets the preset temperature condition.
In one preferred embodiment, the air conditioner is controlled to cut off a main power supply of the air conditioner, and then the main power supply is controlled to supply power to the air conditioner, specifically:
and controlling the air conditioner to cut off the main power supply, and controlling the main power supply to supply power to the air conditioner when the cut-off duration time of the main power supply reaches a second preset duration time threshold value.
In one preferred embodiment, the method further comprises:
when the indoor temperature meets a preset temperature condition and the current of the inner fan meets a preset current condition, judging whether the power-on restarting frequency of the air conditioner reaches a preset frequency condition or not;
if the power-on restarting frequency does not reach the preset frequency condition, continuing to execute the process of controlling the air conditioner to firstly cut off the main power supply of the air conditioner and then controlling the main power supply to supply power to the air conditioner;
and if the power-on restarting frequency reaches the preset frequency condition, controlling an air conditioner to cut off the main power supply and keeping the main power supply in a disconnected state.
In order to achieve the purpose, the air conditioner control device provided by the invention adopts the following technical scheme:
an air conditioner control device, the device comprising:
the indoor temperature acquisition unit is used for acquiring the temperature of the indoor environment where an indoor unit of the air conditioner is located in the running process of the air conditioner as the indoor temperature;
the indoor fan current acquisition unit is used for acquiring the current of an indoor fan of the air conditioner as the current of the indoor fan in the running process of the air conditioner;
the indoor temperature judging unit is used for judging whether the indoor temperature meets a preset temperature condition or not and outputting a judging result;
the inner fan current judging unit is used for judging whether the inner fan current meets a preset current condition or not and outputting a judging result;
the power supply control unit is used for controlling the air conditioner to cut off a main power supply of the air conditioner firstly when the indoor temperature meets a preset temperature condition and the current of the inner fan meets a preset current condition, and then controlling the main power supply to supply power to the air conditioner, so that the air conditioner is electrified and restarted;
the preset temperature conditions include: the difference value between the indoor temperature and the set temperature of the air conditioner exceeds the range of the preset temperature difference;
the preset current conditions include: and the current of the inner fan is smaller than a preset current threshold value.
In one preferred embodiment, the apparatus further comprises:
the power-on restarting frequency judging unit is used for judging whether the power-on restarting frequency of the air conditioner reaches a preset frequency condition or not when the indoor temperature meets a preset temperature condition and the current of the inner fan meets a preset current condition, and outputting a judging result;
if the power-on restarting frequency does not reach the preset frequency condition, the power supply control unit continues to execute the process of controlling the air conditioner to firstly cut off the main power supply of the air conditioner and then control the main power supply to supply power to the air conditioner;
and if the power-on restarting frequency reaches the preset frequency condition, the power supply control unit controls the air conditioner to cut off the main power supply and keep the disconnection state of the main power supply.
Another object of the present invention is to provide an air conditioner including an indoor unit and an indoor fan disposed in the indoor unit, wherein the air conditioner further includes the air conditioner control device according to claim 7 or 8.
The present invention is also directed to an electronic device including a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor executes the computer program to implement the air conditioner control method according to any one of claims 1 to 6.
Compared with the prior art, the invention has the advantages and positive effects that:
according to the air conditioner control method and the air conditioner control device, the current of the inner fan is used as a judgment parameter for judging whether the air conditioner is powered on and restarted, meanwhile, the influence of non-fault shutdown on the current of the inner fan is eliminated by means of indoor temperature, the judgment parameter is simple and easy to obtain, the configuration requirement on the air conditioner detection device is low, and the reliability of power-on and restart judgment is improved; when the indoor temperature meets the preset temperature condition and the current of the inner fan meets the preset current condition, the air conditioner is controlled to cut off the main power supply of the air conditioner at first, then the main power supply is controlled to supply power to the air conditioner, and the power-on restart of the air conditioner is realized.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of one embodiment of an air conditioner control method of the present invention;
fig. 2 is a flowchart of another embodiment of an air conditioner control method according to the present invention;
fig. 3 is a block diagram showing the construction of an embodiment of the air conditioner control apparatus of the present invention;
fig. 4 is a block diagram showing the construction of another embodiment of the air conditioner controlling apparatus according to the present invention;
fig. 5 is a block diagram of the structure of one embodiment of the electronic device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.
It should be noted that the technical solutions in the embodiments of the present invention may be combined with each other, but must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the protection scope of the present invention.
Embodiments described below provide an air conditioner that performs a cooling and heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The cooling and heating cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.
The refrigeration working principle of the air conditioner is as follows: the compressor works to make the interior of the indoor heat exchanger (in the indoor machine, the evaporator at this time) be in an ultralow pressure state, the liquid refrigerant in the indoor heat exchanger is quickly evaporated to absorb heat, and the air blown out by the indoor fan is cooled by the coil pipe of the indoor heat exchanger and then changed into cold air to be blown into the room. The evaporated and gasified refrigerant is pressurized by the compressor, condensed into a liquid state in a high-pressure environment in an outdoor heat exchanger (in an outdoor unit, a condenser at the moment), releases heat, and is dissipated to the atmosphere through an outdoor fan, so that the refrigeration effect is achieved by circulation.
The heating working principle of the air conditioner is as follows: the gaseous refrigerant is pressurized by the compressor to become high-temperature and high-pressure gas, and the high-temperature and high-pressure gas enters the indoor heat exchanger (the condenser at this time), is condensed, liquefied and released heat to become liquid, and simultaneously heats indoor air, thereby achieving the purpose of increasing the indoor temperature. The liquid refrigerant is decompressed by the throttling device, enters an outdoor heat exchanger (an evaporator at the moment), is evaporated, gasified and absorbs heat to form gas, absorbs heat of outdoor air (the outdoor air becomes cooler) to form gaseous refrigerant, and enters the compressor again to start the next cycle.
During the operation of the air conditioner, if the air conditioner fails due to various reasons, the operation of the air conditioner is stopped. Some faults are temporary faults, and the faults can be relieved by powering up the air conditioner again. When the air conditioner stops running due to a fault, the indoor fan is generally stopped, and the current of the indoor fan is very small and close to zero. In addition, the indoor fan is stopped when the air conditioner stops running due to faults, and is also stopped when the indoor temperature reaches a certain temperature condition. The invention adopts a certain method and a certain device to control the air conditioner based on the operation characteristics of the air conditioner, and solves the problems of inconvenience and untimely time for manually powering on and starting the air conditioner on site after the air conditioner is in fault shutdown in a simple and reliable mode.
Fig. 1 is a flowchart illustrating an embodiment of an air conditioner control method according to the present invention, and in particular, is a control flow illustrating an embodiment of an automatic power-on restart after an air conditioner is failed and stopped.
As shown in fig. 1, the embodiment implements automatic power-on restart control by the following procedure:
step 11: in the operation process of the air conditioner, the temperature of the indoor environment where the indoor unit of the air conditioner is located is obtained as the indoor temperature, and the current of the indoor fan of the air conditioner is obtained as the current of the indoor fan.
The acquisition of the indoor temperature can be realized by matching a temperature acquisition unit arranged on the indoor unit with a main controller of the air conditioner, for example, the acquisition of the indoor temperature is realized by matching a temperature sensor arranged on an air return opening of the indoor unit with the main controller on an electric control board of the air conditioner. The specific acquisition mode can adopt the prior art and is not described in more detail herein.
The current of the inner fan can be acquired by matching a current acquisition unit arranged on the indoor fan control circuit with a main controller of the air conditioner. The specific acquisition mode can adopt the prior art and is not described in more detail herein.
Step 12: when the indoor temperature meets the preset temperature condition and the current of the inner fan meets the preset current condition, the air conditioner is controlled to cut off the main power supply of the air conditioner, and then the main power supply is controlled to supply power to the air conditioner, so that the power-on restarting of the air conditioner is realized.
The air conditioner is configured with a preset temperature condition and a preset current condition, and generally, the preset temperature condition and the preset current condition are obtained by technicians through theoretical analysis, simulation analysis, experimental tests, experience summary and the like.
Wherein the preset temperature conditions include: the difference value between the indoor temperature and the set temperature of the air conditioner exceeds a preset temperature difference range; the preset current conditions include: the current of the inner fan is smaller than a preset current threshold value. The preset temperature condition and the preset current condition are set, the stop operation of the indoor fan caused by non-fault stop reasons can be eliminated as far as possible, and the reliability and the simplicity of automatic power-on restart operation due to fault stop are improved.
When the indoor temperature meets the preset temperature condition and the current of the inner fan meets the preset current condition, the air conditioner is judged to be stopped due to faults, and the air conditioner needs to be electrified and restarted to try to eliminate the faults, so that the air conditioner can normally run. The specific operation of automatic power-on restart is as follows: the air conditioner is controlled to cut off the main power supply of the air conditioner, and then the main power supply is controlled to supply power to the air conditioner. When the outdoor unit is specifically realized, the relay switch of the outdoor unit is utilized to disconnect the main power supply circuit of the air conditioner, then the relay is controlled to be closed, the main power supply circuit is closed, and the main power supply is recovered to supply power for the air conditioner through the main power supply circuit.
According to the air conditioner control method, the current of the inner fan is used as a judgment parameter for judging whether the air conditioner is electrified and restarted, meanwhile, the influence of non-fault shutdown on the current of the inner fan is eliminated by means of indoor temperature, the judgment parameter is simple and easy to obtain, the configuration requirement on the air conditioner detection device is low, and the reliability of power-on restarting judgment is improved; when the indoor temperature meets the preset temperature condition and the current of the inner fan meets the preset current condition, the air conditioner is controlled to cut off the main power supply of the air conditioner at first, then the main power supply is controlled to supply power to the air conditioner, and the power-on restarting of the air conditioner is achieved.
Fig. 2 is a flowchart illustrating another embodiment of the air conditioner control method according to the present invention, and in particular, is a control flow for implementing an automatic power-on restart after the air conditioner is failed and stopped.
As shown in fig. 2, this embodiment implements automatic power-on restart control by the following procedure:
step 201: the air conditioner operates to obtain the indoor temperature.
The acquisition of the indoor temperature can be realized by matching a temperature acquisition unit arranged on the indoor unit with a main controller of the air conditioner, for example, the acquisition of the indoor temperature is realized by matching a temperature sensor arranged on an air return opening of the indoor unit with the main controller on an electric control board of the air conditioner. The specific acquisition mode can adopt the prior art and is not described in more detail herein.
Step 202: and judging whether the indoor temperature meets a preset temperature condition or not. If yes, go to step 203; otherwise, go to step 201, continue to obtain the indoor temperature and compare with the preset temperature condition.
The preset temperature condition is obtained by technicians through theoretical analysis, simulation analysis, experimental test, experience summary and the like, and comprises the following steps: the difference between the indoor temperature and the set temperature of the air conditioner exceeds the range of the preset temperature difference. In a preferred embodiment, the preset temperature difference is determined according to a temperature reaching shutdown temperature difference of the air conditioner, and the preset temperature difference is not less than the temperature reaching shutdown temperature difference. The air conditioners are generally provided with a temperature reaching shutdown temperature difference, and when the difference value between the indoor temperature and the set temperature of the air conditioner reaches the shutdown temperature difference, the indoor fan stops running due to the temperature reaching. In order to eliminate the influence of the temperature-reaching shutdown on the indoor fan, a proper preset temperature difference is determined according to the temperature-reaching shutdown temperature difference, and at least the preset temperature difference is ensured to be not less than the temperature-reaching shutdown temperature difference.
Step 203: and acquiring the current of the inner fan.
The inner fan current is only obtained when it is determined in step 202 that the indoor temperature meets the preset temperature condition. If the indoor temperature does not meet the preset temperature condition, the judgment of whether to power on and restart based on the current of the inner fan is not carried out, so that the processing process is simplified. The current of the inner fan can be acquired by matching a current acquisition unit arranged on the indoor fan control circuit with a main controller of the air conditioner. The specific acquisition mode can adopt the prior art and is not described in more detail herein.
Step 204: and judging whether the current of the inner fan meets a preset current condition or not. If yes, go to step 206; otherwise, step 205 is performed.
In this embodiment, the preset current conditions include: the duration that the current of the inner fan is smaller than the preset current threshold reaches a first preset duration threshold. The preset current threshold and the first preset duration threshold are determined by technicians through theoretical analysis, simulation analysis, experimental tests, empirical summary and the like. When the current of the indoor fan meets the preset current condition, the indoor fan is determined to stop running for a certain time, and the running is most likely to be stopped due to the fault shutdown of the air conditioner.
Step 205: the main power supply keeps the power supply state. Then, go to step 203 to continue to obtain the inner fan current.
If the step 204 determines that the current of the indoor fan does not meet the preset current condition, it is determined that the indoor fan does not stop due to the fault shutdown of the air conditioner. Under the condition, the main power supply of the air conditioner is controlled to keep a power supply state, and the air conditioner is still electrified to work. Meanwhile, the current of the inner fan is continuously obtained and compared with a preset current condition until the current of the inner fan meets the preset current condition.
Step 206: the main power supply is cut off.
When the current of the internal fan is determined to meet the preset current condition in step 204, the indoor fan is judged to stop running due to the fault shutdown of the air conditioner. At this time, the main power supply of the air conditioner is cut off. In the concrete implementation, the relay switch of the outdoor unit is used for disconnecting the main power supply circuit of the air conditioner.
Step 207: and judging whether the cut-off duration time of the main power supply reaches a second preset duration time threshold value. If yes, go to step 208; otherwise, the cut-off state of the main power supply is continuously maintained until the duration of the cut-off of the main power supply reaches a second preset duration. The second preset duration is a preset time.
Step 208: and judging whether the power-on restarting frequency of the air conditioner reaches a preset frequency condition. If yes, go to step 210; otherwise, the process of step 209 is performed.
Some faults of the air conditioner cannot be eliminated simply by power-on restart. For the faults which cannot be eliminated by power-on restart, manual checking and processing are required in time to ensure that the air conditioner meets the use requirement as soon as possible. Therefore, the embodiment also presets a preset time condition in the air conditioner, and executes different processing on the air conditioner according to whether the time of the power-on restart of the air conditioner reaches the preset time condition.
Step 209: and controlling the main power supply voltage to supply power to the air conditioner.
And when the power-on restarting frequency of the air conditioner does not reach the preset frequency condition in the step 208, the power-on restarting is still executed, and after the duration of cutting off the main power supply of the air conditioner reaches a second preset duration, the main power supply is controlled to supply power to the air conditioner. When the air conditioner is specifically realized, the relay of the outdoor unit is controlled to be sucked, the main power supply circuit is closed, and the main power supply is recovered to supply power for the air conditioner through the main power supply circuit.
After step 209 is performed, the control procedure of one power-on restart is completed, and then the next power-on restart control cycle is performed.
Step 210: when it is determined in step 208 that the number of times of power-on restart of the air conditioner reaches the preset number of times, the power-on restart process is not executed any more, but the off state of the main power supply is maintained.
In other preferred embodiments, when the number of times of the power-on restart of the air conditioner reaches a preset number of times and the disconnection state of the main power supply is maintained, a fault prompt is sent to prompt a site to check and solve the problem of the air conditioner fault.
Other technical effects of this embodiment, as described with reference to the embodiment of fig. 1, will not be repeated here.
Fig. 3 is a block diagram of an embodiment of an air conditioner control device according to the present invention, and specifically, is a block diagram of an embodiment of an air conditioner control device that implements automatic power-on restart after a shutdown event.
As shown in fig. 3, the control device of this embodiment includes the following structural units, and the relationship and function between the structural units are described as follows:
the indoor temperature obtaining unit 31 is configured to obtain a temperature of an indoor environment where an indoor unit of the air conditioner is located during an operation of the air conditioner as an indoor temperature.
And an indoor temperature determination unit 32 configured to determine whether the indoor temperature acquired by the indoor temperature acquisition unit 31 satisfies a preset temperature condition and output a determination result. The preset temperature conditions include: the difference between the indoor temperature and the set temperature of the air conditioner exceeds the range of the preset temperature difference.
And an indoor fan current obtaining unit 33, configured to obtain a current of an indoor fan of the air conditioner during an operation of the air conditioner, as an indoor fan current.
And an inner fan current determining unit 34, configured to determine whether the inner fan current obtained by the inner fan current obtaining unit meets a preset current condition and output a determination result. The preset current conditions include: the current of the inner fan is smaller than a preset current threshold value.
And the power supply control unit is used for controlling the air conditioner to firstly cut off a main power supply of the air conditioner and then controlling the main power supply to supply power to the air conditioner to realize the power-on restarting of the air conditioner when the indoor temperature meets the preset temperature condition as the output result of the indoor temperature judging unit 32 and the inner fan current meets the preset current condition as the output result of the inner fan current judging unit 34.
The control device with the structure runs corresponding software programs to execute corresponding functions, and controls the air conditioner according to the embodiment of the air conditioner control method in the figure 1 and the process of the preferred embodiment of the air conditioner control method in the figure 1, so that the technical effects corresponding to the embodiment in the figure 1 and the preferred embodiment of the air conditioner control method in the figure 1 are achieved.
Fig. 4 is a block diagram illustrating another embodiment of the air conditioner control device according to the present invention, and more particularly, to a block diagram illustrating an embodiment of an automatic power-on restart after an air conditioner is failed and stopped.
As shown in fig. 4, the control device of this embodiment includes the following structural units, and the relationship and function between the structural units are described as follows:
and an indoor temperature obtaining unit 41, configured to obtain, as an indoor temperature, a temperature of an indoor environment in which an indoor unit of the air conditioner is located during an operation of the air conditioner.
And an indoor temperature determination unit 42 configured to determine whether the indoor temperature acquired by the indoor temperature acquisition unit 41 satisfies a preset temperature condition and output a determination result.
And an indoor fan current obtaining unit 43, configured to obtain a current of an indoor fan of the air conditioner during an operation process of the air conditioner, as an indoor fan current.
And the inner fan current judging unit 44 is configured to judge whether the inner fan current acquired by the inner fan current acquiring unit meets a preset current condition and output a judgment result.
And the power-on restarting frequency judging unit 45 is used for judging whether the power-on restarting frequency of the air conditioner reaches a preset frequency condition or not when the indoor temperature meets a preset temperature condition and the current of the inner fan meets a preset current condition, and outputting a judgment result.
The power supply control unit 46 is configured to control the air conditioner to first cut off a main power supply of the air conditioner and then control a process of supplying power to the air conditioner by the main power supply to realize power-on restart of the air conditioner when the result output by the indoor temperature judgment unit 32 indicates that the indoor temperature meets the preset temperature condition, the result output by the inner fan current judgment unit 34 indicates that the inner fan current meets the preset current condition, and the result output by the power-on restart number judgment unit 45 indicates that the number of times of power-on restart does not reach the preset number of times; and is further configured to control the air conditioner to cut off the main power supply and maintain the off state of the main power supply when the result output by the indoor temperature determining unit 32 is that the indoor temperature meets the preset temperature condition, the result output by the inner fan current determining unit 34 is that the inner fan current meets the preset current condition, and the result output by the power-on restart time determining unit 45 is that the number of times of power-on restart reaches the preset number of times condition.
The control device with the structure runs corresponding software programs to execute corresponding functions, and controls the air conditioner according to the embodiment of the air conditioner control method in the figure 2 and the process of the preferred embodiment of the air conditioner control method in the figure 2, so that the technical effects corresponding to the embodiment in the figure 2 and the preferred embodiment of the air conditioner control method in the figure 2 are achieved.
The air conditioner control device of each embodiment is applied to the air conditioner, and the problems of inconvenience and untimely property that the air conditioner needs to be manually powered on and started on site after the air conditioner is in a fault shutdown are solved in a simple and reliable mode.
Fig. 5 shows a block diagram of an embodiment of the electronic device of the present invention. The electronic device comprises a memory 51, a processor 52 and a computer program 511 stored in the memory 51, wherein when the computer program runs on the processor 52, the air conditioner control method of the embodiment in fig. 1, the embodiment in fig. 2 and other preferred embodiments is realized, and the technical effects of the corresponding embodiments are realized. The electronic device can be a main control board, a controller and the like of the air conditioner.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. An air conditioner control method, characterized in that the method comprises:
acquiring the temperature of the indoor environment where an indoor unit of the air conditioner is positioned as the indoor temperature in the operation process of the air conditioner; acquiring the current of an indoor fan of an air conditioner as the current of the indoor fan;
when the indoor temperature meets a preset temperature condition and the current of the inner fan meets a preset current condition, controlling the air conditioner to cut off a main power supply of the air conditioner, and then controlling the main power supply to supply power to the air conditioner, so that the air conditioner is powered on and restarted;
the preset temperature conditions include: the difference value between the indoor temperature and the set temperature of the air conditioner exceeds a preset temperature difference range;
the preset current conditions include: and the current of the inner fan is smaller than a preset current threshold value.
2. The air conditioner control method according to claim 1, wherein the preset current condition further comprises: and the duration that the current of the inner fan is smaller than the preset current threshold reaches a first preset duration threshold.
3. The air conditioner control method according to claim 1, wherein the preset temperature difference is determined according to a temperature-reaching shutdown temperature difference of the air conditioner, and the preset temperature difference is not less than the temperature-reaching shutdown temperature difference.
4. The control method of the air conditioner according to claim 1, wherein the temperature of the indoor environment where the indoor unit of the air conditioner is located is obtained as the indoor temperature during the operation of the air conditioner; the method comprises the following steps of obtaining the current of an indoor fan of the air conditioner as the current of the indoor fan, specifically:
firstly, acquiring the indoor temperature, and judging whether the indoor temperature meets the preset temperature condition;
and obtaining the current of the indoor fan until the indoor temperature meets the preset temperature condition.
5. The air conditioner control method according to claim 1, wherein the air conditioner is controlled to cut off a main power supply of the air conditioner and then control the main power supply to supply power to the air conditioner, specifically:
and controlling the air conditioner to cut off the main power supply, and controlling the main power supply to supply power to the air conditioner when the cut-off duration time of the main power supply reaches a second preset duration time threshold value.
6. The air conditioner control method according to any one of claims 1 to 5, characterized in that the method further comprises:
when the indoor temperature meets a preset temperature condition and the current of the inner fan meets a preset current condition, judging whether the power-on restarting frequency of the air conditioner reaches a preset frequency condition or not;
if the power-on restarting frequency does not reach the preset frequency condition, continuing to execute the process of controlling the air conditioner to firstly cut off the main power supply of the air conditioner and then controlling the main power supply to supply power to the air conditioner;
and if the power-on restarting frequency reaches the preset frequency condition, controlling an air conditioner to cut off the main power supply and keeping the main power supply in a disconnected state.
7. An air conditioner control device, characterized in that the device comprises:
the indoor temperature acquisition unit is used for acquiring the temperature of the indoor environment where an indoor unit of the air conditioner is located in the running process of the air conditioner as the indoor temperature;
the indoor fan current acquisition unit is used for acquiring the current of an indoor fan of the air conditioner as the current of the indoor fan in the running process of the air conditioner;
the indoor temperature judging unit is used for judging whether the indoor temperature meets a preset temperature condition or not and outputting a judging result;
the inner fan current judging unit is used for judging whether the inner fan current meets a preset current condition or not and outputting a judging result;
the power supply control unit is used for controlling the air conditioner to cut off a main power supply of the air conditioner firstly when the indoor temperature meets a preset temperature condition and the current of the inner fan meets a preset current condition, and then controlling the main power supply to supply power to the air conditioner, so that the air conditioner is electrified and restarted;
the preset temperature conditions include: the difference value between the indoor temperature and the set temperature of the air conditioner exceeds a preset temperature difference range;
the preset current conditions include: and the current of the inner fan is smaller than a preset current threshold value.
8. The air conditioner control device according to claim 7, characterized in that the device further comprises:
the power-on restarting frequency judging unit is used for judging whether the power-on restarting frequency of the air conditioner reaches a preset frequency condition or not when the indoor temperature meets a preset temperature condition and the current of the inner fan meets a preset current condition, and outputting a judging result;
if the power-on restarting frequency does not reach the preset frequency condition, the power supply control unit continues to execute the process of controlling the air conditioner to firstly cut off the main power supply of the air conditioner and then control the main power supply to supply power to the air conditioner;
and if the power-on restarting frequency reaches the preset frequency condition, the power supply control unit controls the air conditioner to cut off the main power supply and keep the disconnection state of the main power supply.
9. An air conditioner comprising an indoor unit and an indoor fan disposed in the indoor unit, characterized by further comprising the air conditioner control device of claim 7 or 8.
10. An electronic device comprising a memory, a processor and a computer program stored in the memory and running on the processor, wherein the processor executes the computer program to implement the air conditioner control method according to any one of claims 1 to 6.
CN202111421187.9A 2021-11-26 2021-11-26 Air conditioner control method and device and air conditioner Active CN114198862B (en)

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CN113137694A (en) * 2021-04-14 2021-07-20 宁波奥克斯电气股份有限公司 Heating control method and device of air conditioner and air conditioner
CN113587356A (en) * 2021-06-02 2021-11-02 宁波奥克斯电气股份有限公司 Control method and device for preventing heating of air conditioner from being blocked and air conditioner

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JPH06257906A (en) * 1993-03-03 1994-09-16 Matsushita Electric Ind Co Ltd Airconditioning apparatus
EP0837289A2 (en) * 1996-10-17 1998-04-22 Kabushiki Kaisha Toshiba Air conditioner and method of controlling the air conditioner
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