CN112524764B - Air conditioner, control method and device thereof and storage medium - Google Patents
Air conditioner, control method and device thereof and storage medium Download PDFInfo
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- CN112524764B CN112524764B CN202011414883.2A CN202011414883A CN112524764B CN 112524764 B CN112524764 B CN 112524764B CN 202011414883 A CN202011414883 A CN 202011414883A CN 112524764 B CN112524764 B CN 112524764B
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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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- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- 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, a control method and a control device of the air conditioner and a storage medium of the air conditioner. The control method of the air conditioner comprises the following steps: acquiring the temperature difference between the indoor temperature of the air conditioner and a target temperature; if the temperature difference is smaller than a first temperature threshold value, acquiring the operating frequency of an outdoor compressor of the air conditioner; if the running frequency of the outdoor compressor is smaller than a frequency threshold value, controlling an indoor fan of the air conditioner to run at a first wind speed; when the temperature difference is equal to the first temperature difference threshold value, an indoor fan of the air conditioner is switched to a first wind speed gear to operate, the first wind speed is lower than a second wind speed corresponding to the first wind speed gear of the indoor fan, and the first wind speed gear is a rated lowest wind speed gear. Therefore, the comfort level of a user is guaranteed, the using satisfaction degree of the air conditioner is improved, meanwhile, the power consumption of the air conditioner can be reduced, and the silencing effect of the air conditioner is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner, a control method and a control device of the air conditioner and a storage medium of the air conditioner.
Background
In the related art, in controlling the air conditioner to automatically switch the windshield, the wind speed is usually adjusted in several defined gears, such as between mute, low, medium, high or strong, or between several windshields limited between 1% and 100%, based on the difference between the current indoor temperature and the target temperature. However, even in the lowest gear, for example, the mute gear, there may be a problem that the mute effect is not good, or the cooling capacity or the heating capacity is too high, so that a more stable cooling or heating environment cannot be provided for the user, and the comfort of the user is affected.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for controlling an air conditioner, and a storage medium, which aim to improve the comfort level of a user of the air conditioner and reduce the power consumption of the air conditioner in a stable cold and hot environment.
The technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides a control method of an air conditioner, which comprises the following steps:
acquiring the temperature difference between the indoor temperature of the air conditioner and a target temperature;
under the automatic wind speed gear adjusting mode, if the temperature difference is smaller than a first temperature difference threshold value, acquiring the operating frequency of an outdoor compressor of the air conditioner; when the temperature difference is within the first temperature difference threshold value, an indoor fan of the air conditioner is switched to a first wind speed gear to operate, and the first wind speed gear is a rated lowest wind speed gear;
if the running frequency of the outdoor compressor is smaller than the frequency threshold value, controlling an indoor fan of the air conditioner to run at a first wind speed; and the first wind speed is less than a second wind speed corresponding to the first wind speed gear of the indoor fan.
In some embodiments, the method further comprises:
and if the running frequency of the outdoor compressor is greater than the frequency threshold value, controlling the indoor fan to run at the second wind speed.
In some embodiments, the method further comprises:
setting a second temperature difference threshold, wherein the second temperature difference threshold is less than the first temperature difference threshold;
if the operating frequency of the outdoor compressor is less than the frequency threshold, controlling the indoor fan of the air conditioner to operate at a first wind speed, including:
and if the operating frequency of the outdoor compressor is smaller than the frequency threshold value and the temperature difference is smaller than the second temperature difference threshold value, controlling the indoor fan to operate at the first wind speed.
In some embodiments, the method further comprises:
and if the temperature difference is between the first temperature difference threshold value and the second temperature difference threshold value, controlling the indoor fan to operate at the second wind speed.
In some embodiments, the method further comprises:
when the temperature difference is smaller than the first temperature difference threshold value, starting to record the running time of the outdoor compressor;
if the operating frequency of the outdoor compressor is less than a frequency threshold, controlling an indoor fan of the air conditioner to operate at a first wind speed, including:
and if the running frequency of the outdoor compressor is smaller than the frequency threshold value and the running time is longer than a time threshold value, controlling the indoor fan to run at the first wind speed.
In some embodiments, the method further comprises:
and if the running time is less than or equal to the time threshold, controlling the indoor fan to run at the second wind speed.
In some embodiments, the method further comprises:
and if the temperature difference is larger than the first temperature difference threshold value, controlling the indoor fan to be switched to a second wind speed gear which is higher than the first wind speed gear by one gear to operate.
An embodiment of the present invention further provides a control device for an air conditioner, including:
the first acquisition module is used for acquiring the temperature difference between the indoor temperature of the air conditioner and the target temperature;
the second acquisition module is used for acquiring the operating frequency of an outdoor compressor of the air conditioner in an automatic wind speed gear adjustment mode if the temperature difference is smaller than a first temperature difference threshold value; when the temperature difference is within the first temperature difference threshold value, an indoor fan of the air conditioner is switched to a first wind speed gear to operate, and the first wind speed gear is a rated lowest wind speed gear;
the first control module is used for controlling an indoor fan of the air conditioner to operate at a first wind speed if the operating frequency of the outdoor compressor is less than a frequency threshold; and the first wind speed is less than a second wind speed corresponding to the first wind speed gear of the indoor fan.
An embodiment of the present invention further provides an air conditioner, including: indoor fan and outdoor compressor, the air conditioner still includes: a processor and a memory for storing a computer program capable of running on the processor, wherein the processor, when running the computer program, is adapted to perform the steps of the method according to an embodiment of the invention.
The embodiment of the invention also provides a storage medium, wherein a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of the method of the embodiment of the invention are realized.
According to the technical scheme provided by the embodiment of the invention, the temperature difference between the indoor temperature of the air conditioner and the target temperature is obtained; if the temperature difference is larger than a first temperature difference threshold value, acquiring the operating frequency of an outdoor compressor of the air conditioner; and if the running frequency of the outdoor compressor is less than a frequency threshold value, controlling an indoor fan of the air conditioner to run at a first wind speed. Here, when the temperature difference is within the first temperature difference threshold, the indoor fan of the air conditioner is switched to a first wind speed gear operation, that is, a rated minimum wind speed gear operation, and the first wind speed is less than a second wind speed corresponding to the rated minimum wind speed of the indoor fan. So, this embodiment can be under the condition that the difference in temperature of indoor temperature and target temperature is less than first difference in temperature threshold value, that is to say under the condition that the air conditioner has been transferred to rated minimum wind speed gear, through the detection to the operating frequency of outdoor compressor, accurately determine the difference in temperature of indoor temperature and target temperature, it is enough little at the indoor difference in temperature, or when the operating frequency of outdoor compressor was less than the frequency threshold value, turn down the wind speed, thereby reduce the cold volume that current wind speed brought or the thermal poor problem of comfort level that the continuation risees and leads to, thereby user's comfort level has been guaranteed, the use satisfaction of air conditioner has been improved. Furthermore, the wind speed can be continuously reduced on the basis of the lowest wind speed gear, so that the wind speed adjusting range of the conventional air conditioner is increased, and the power consumption of the air conditioner is reduced. Further, due to the fact that the wind speed is reduced, noise generated by the work of the indoor fan can be further reduced, and the silencing effect of the air conditioner is improved.
Drawings
FIG. 1 is a flow chart illustrating a control method of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a corresponding relationship between a wind speed gear and a temperature difference threshold according to an exemplary application of the present invention;
FIG. 3 is a flow chart illustrating a method for controlling an air conditioner according to an exemplary embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a control device of an air conditioner according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The embodiment of the invention provides a control method of an air conditioner, which at least comprises the following steps: an outdoor compressor and an indoor fan. For example, the outdoor compressor sucks low-temperature and low-pressure refrigerant gas from the air suction pipe, drives the piston to compress the refrigerant gas through the operation of the motor, and exhausts the pressure of the high-temperature and high-pressure refrigerant to the exhaust pipe to provide power for the refrigeration cycle. The indoor fan is responsible for conveying cold air or hot air to the indoor space and conveying the hot air or the cold air to the outdoor space through the pipeline so as to achieve the purpose of cooling.
As shown in fig. 1, the method for controlling an air conditioner includes:
Here, the indoor temperature refers to an ambient temperature within a preset distance where an indoor fan of the air conditioner is located. The target temperature refers to a temperature required to be reached during the operation of the air conditioner, for example, the temperature of the air conditioner is controlled to be reduced to 26 degrees, where 26 degrees is the target temperature.
In some embodiments, the obtaining a temperature difference between an indoor temperature of the air conditioner and a target temperature includes: acquiring the indoor temperature of the air conditioner and acquiring the target temperature; and calculating the difference value between the indoor temperature and the target temperature of the air conditioner based on the indoor temperature and the target temperature.
Here, the acquiring of the indoor temperature of the air conditioner includes: and obtaining the current atmospheric temperature from the cloud server through the communication component so as to determine the indoor temperature. Or, the indoor temperature is obtained by a first temperature sensor installed in the room and connected to the air conditioner. In this way, the air conditioner does not need to be provided with a temperature sensor, and only needs to be provided with a communication component capable of communicating with other equipment to obtain the indoor temperature in the same way.
In other embodiment, the obtaining the indoor temperature of the air conditioner may further include:
and detecting and obtaining the indoor temperature by using a second temperature sensor arranged on the air conditioner.
In the present embodiment, since the indoor temperature is detected by the second temperature sensor installed in the air conditioner itself, the accuracy of the acquired indoor temperature is higher than that obtained from the server or the first temperature sensor by the communication means.
In other embodiments, the obtaining the target temperature may include: and receiving a user instruction, and acquiring the target temperature according to the user instruction. Here, the user instruction may be an instruction issued by a remote control device corresponding to the air conditioner.
Of course, in other embodiments, the obtaining the target temperature may further include: and acquiring the temperature of the air conditioner corresponding to the highest setting frequency in the current month as the target temperature from the server. The temperature corresponding to the highest frequency set by all air conditioners in the month can be acquired from the server as the target temperature. So, can acquire target temperature intelligently, prevent that the target temperature that user's maloperation leads to sets up the improper scheduling problem such as air conditioner comfort level that causes and reduces.
In practical application, the air conditioner can periodically acquire the indoor temperature of the air conditioner, and the processor of the air conditioner compares the periodically acquired indoor temperature with the target temperature to acquire the temperature difference.
Certainly, in other embodiments, the air conditioner directly obtains the temperature difference between the indoor temperature and the target temperature from the server, and the processor is not required to compare the indoor temperature and the target temperature, so that the processing flow is saved, and the power consumption of the air conditioner is reduced.
And 102, in the automatic wind speed gear adjusting mode, if the temperature difference is smaller than a first temperature difference threshold value, acquiring the operating frequency of an outdoor compressor of the air conditioner.
It can be understood that, after the air conditioner is operated for a certain time, the temperature difference gradually decreases as the operating time of the air conditioner increases, so that the indoor temperature approaches the target temperature to achieve the objective of cooling or heating.
It is necessary to supplement that, in the air conditioner, different temperature differences correspond to different wind speed gears in the automatic wind speed gear adjusting mode. Understandably, the larger the temperature difference is, the higher the corresponding wind speed gear is, and correspondingly, the larger the wind speed of the indoor fan is. Here, the first temperature difference threshold may be understood as a critical temperature difference value corresponding to switching of the air conditioner to a rated lowest wind speed gear in a self-regulation mode.
Specifically, referring to fig. 2, fig. 2 is a schematic diagram illustrating a corresponding relationship between a wind speed gear and a temperature difference threshold value in an application example of the present invention, as shown in fig. 2, each temperature difference interval corresponds to a wind speed gear. The air conditioner can automatically switch from a high gear to a low gear along with the gradual reduction of the temperature difference in an adjusting mode; likewise, as the temperature difference increases, it is also possible to automatically switch from the low range to the high range. The higher the gear, correspondingly, the faster the rotating speed of the indoor fan, i.e. the greater the wind speed. Specifically, the relationship between the wind speed gear and the rotating speed is as follows:
Sf＝(Fmax-Fmin)*Js+Fmin；
here, Sf is the rotation speed; fmax is a preset wind speed upper limit; fmin is a preset lower wind speed limit; js is the percentage of the full speed, i.e. the corresponding wind speed gear.
It should be noted that the preset wind speed upper limit is an upper wind speed limit that can be reached in the current setting mode of the air conditioner, and the preset wind speed lower limit is a lower wind speed limit that can be reached in the current setting mode of the air conditioner.
For example, six wind speed gears can be configured for the outdoor fan, please refer to fig. 2, for example, the wind speed gears are sequentially from high to low, namely a wind speed gear corresponding to 100% of the full rotation speed, a wind speed gear corresponding to 80% of the full rotation speed, a wind speed gear corresponding to 60% of the full rotation speed, a wind speed gear corresponding to 40% of the full rotation speed, a wind speed gear corresponding to 20% of the full rotation speed, and a wind speed gear corresponding to 1% of the full rotation speed.
In other embodiments, the wind speed gear of the outdoor fan may be strong, high, medium, low and mute gear in sequence from high to low.
It should be noted that, in the air speed self-adjusting mode of the air conditioner, in the related art, in order to achieve a better cooling or heating effect in a balanced manner, a certain air speed is still set at the rated lowest air speed gear, so that the cooling or heating effect of the air conditioner can be maintained.
Here, the rated lowest wind speed gear may be a mute gear or a wind speed gear corresponding to a rotational speed of the indoor fan which is 1% of the full rotational speed.
Further, in the wind speed self-adjusting mode of the air conditioner, the wind speed gear is automatically switched according to the temperature difference, and is limited by the accuracy of the sensor, where the first temperature difference threshold may be a minimum temperature difference threshold that can be detected by the sensor. Of course, in other embodiments, the first temperature difference threshold may also be a temperature difference preset by a user, for example, 1 degree, and different users may set different first temperature difference thresholds. In a word, the first temperature difference threshold is a descending critical temperature difference corresponding to a rated lowest wind speed gear, which can trigger an indoor fan of the air conditioner to automatically switch to under a wind speed self-adjusting mode of the air conditioner.
For example, referring to fig. 2 again, the temperature difference interval corresponding to the wind speed gear of 20% of the full rotation speed is the interval between the first temperature difference threshold and 3 degrees, the rising critical temperature difference of the wind speed gear of 20% of the full rotation speed is the first temperature difference threshold, and the falling critical temperature difference is 3 degrees.
Here, the rising critical temperature difference means: along with the rise of the temperature, the temperature difference value of the previous wind speed gear can be automatically switched to when the rising critical temperature difference is reached, and the falling critical temperature difference refers to that: along with the temperature reduction, the temperature difference value of the next wind speed gear can be automatically switched to when the critical temperature difference is reduced.
Because a certain wind speed still exists at the rated lowest wind speed gear, the silencing effect is not good enough, or when the user sleeps at night, the load is small, and the heat dissipation is slow, the wind speed corresponding to the rated lowest wind speed gear still causes too high refrigerating capacity or heating capacity, so that the indoor temperature is further reduced or increased, and the user feels uncomfortable.
Based on the above, when the temperature difference is smaller than the first temperature difference threshold value, that is, when the air conditioner has automatically adjusted to the rated lowest wind speed gear, the operation frequency of the outdoor compressor of the air conditioner is obtained, so as to determine whether the wind speed needs to be further reduced according to the operation frequency.
It will be appreciated that the operating frequency of the compressor may actually more accurately reflect the difference between the room temperature and the target temperature. The faster the operating frequency, the greater the corresponding temperature difference, and the slower the operating frequency, the smaller the corresponding temperature difference.
Step 103: and if the operating frequency of the outdoor compressor is less than a frequency threshold value, controlling an indoor fan of the air conditioner to operate at a first wind speed, wherein the first wind speed is less than a second wind speed corresponding to the first wind speed gear of the indoor fan.
Here, as mentioned above, the faster the operating frequency, the larger the corresponding temperature difference, and the slower the operating frequency, the smaller the corresponding temperature difference. The frequency threshold here may be a frequency threshold set to balance the refrigeration effect and the condensation problem; the average frequency value of the operating frequency of the outdoor unit recorded in the server at the time of turning off the air conditioner at the rated lowest wind speed may be used. In practical applications, the case that the outdoor compressor operates at the frequency threshold may indicate that the temperature difference is already very small, for example, if the first temperature difference threshold is 1 degree, the corresponding temperature difference may be 0.1 degree when the operating frequency of the outdoor fan is the frequency threshold. It will be appreciated that in some embodiments, when the outdoor compressor is operated at the frequency threshold, the temperature difference may not even be detected by the sensor, and thus, a temperature difference judgment in the case of a very small temperature difference may still be achieved without a sensor with high accuracy.
In the above embodiment, when the temperature difference is smaller than the first temperature difference threshold, that is, when the air conditioner has been adjusted to the rated lowest wind speed gear, the temperature difference between the indoor temperature and the target temperature can be accurately determined by detecting the operating frequency of the outdoor compressor, where the temperature difference is sufficiently small, or when the operating frequency of the outdoor compressor is smaller than the frequency threshold, the wind speed is decreased, so that the problem of poor comfort caused by the continuous rise of the cooling capacity or the heat capacity due to the current wind speed is reduced, the comfort of the user is ensured, and the use satisfaction of the air conditioner is improved. Furthermore, the wind speed can be continuously reduced on the basis of the lowest wind speed gear, so that the wind speed adjusting range of the conventional air conditioner is increased, and the power consumption of the air conditioner is reduced. Further, due to the fact that the wind speed is reduced, noise generated by the work of the indoor fan can be further reduced, and the silencing effect of the air conditioner is improved.
In some embodiments, the method further comprises:
and if the running frequency of the outdoor compressor is greater than the frequency threshold value, controlling the indoor fan to run at the second wind speed.
Here, if it is detected that the frequency of the compressor is greater than the frequency threshold, it indicates that the temperature difference is not yet sufficiently small, if the wind speed is lowered at this time, it is likely that the indoor temperature causes discomfort to the user because the target temperature is not reached.
In this embodiment, the second wind speed operation is continuously maintained by determining that the operating frequency of the compressor is greater than the frequency threshold, so that the indoor temperature can be quickly close to the target temperature, and the comfort level of a user is improved.
In the above embodiment, on one hand, after the outdoor fan of the air conditioner operates at the first wind speed for a period of time, because the indoor load has exchanged with the outside air, the temperature difference between the indoor temperature and the target temperature may be increased, and the increased temperature difference may not be detected by the temperature sensor, or the increased temperature difference does not reach the rising critical temperature difference corresponding to the gear above the rated lowest gear, so that the increase of the temperature difference can be reflected when the operating frequency is greater than the frequency threshold, and thus, when the operating frequency is greater than the frequency threshold, the indoor fan can be controlled to operate at the second wind speed, thereby effectively preventing the indoor temperature from greatly increasing, ensuring the stability of the indoor temperature, and improving the comfort level.
On the other hand, when the outdoor fan of the air conditioner operates at the second wind speed, that is, operates at the first wind speed gear, if the operating frequency of the compressor is still greater than the frequency threshold, it indicates that the temperature difference has not yet reached the degree capable of reducing the wind speed, at this time, if the wind speed is reduced, the indoor temperature may not be rapidly reduced or increased to the target temperature, resulting in poor cooling or heating efficiency of the air conditioner, so, when the operating frequency is greater than the frequency threshold, the indoor fan is maintained to operate at the second wind speed, the indoor temperature can be rapidly reduced to the target temperature, the cooling or heating efficiency of the air conditioner is improved, and the indoor comfort level is ensured.
It should be noted that, in some embodiments, when the first temperature difference threshold is not the minimum temperature difference value detectable by the sensor, and the first temperature difference threshold is a critical temperature difference value set for automatically adjusting to the rated lowest wind speed gear, the method further includes:
setting a second temperature threshold, wherein the second temperature difference threshold is less than the first temperature difference threshold;
if the operating frequency of the outdoor compressor is less than a frequency threshold, controlling an indoor fan of the air conditioner to operate at a first wind speed, including:
and if the operating frequency of the outdoor compressor is smaller than the frequency threshold value and the temperature difference is smaller than the second temperature difference threshold value, controlling the indoor fan to operate at the first wind speed.
Here, by introducing the second temperature difference threshold, a new condition can be provided for controlling the indoor fan to operate at the first wind speed, that is, the control accuracy is improved. Simultaneously, through introducing the second difference in temperature threshold value, be equivalent to also for the critical judgement value of the difference in temperature that a gear switched has newly been introduced under the gear automatically regulated mode of air conditioner, and satisfying simultaneously the difference in temperature is less than the second difference in temperature threshold value, and outdoor compressor under the condition that operating frequency is less than the frequency threshold value, automatic control indoor fan with first wind speed operation. Therefore, equivalently, a gear which is lower than the lowest rated gear is added for the lowest rated gear, so that the air conditioner can automatically switch the wind speed based on a lower temperature difference threshold value under the lowest rated gear, the wind speed gear of the air conditioner is expanded and extended, the wind speed can be continuously adjusted downwards, and the adjustable range of the automatic wind speed gear is enlarged.
In some embodiments, the method further comprises:
and if the temperature difference is between the first temperature difference threshold value and the second temperature difference threshold value, controlling the indoor fan to operate at the second wind speed.
Here, if the temperature difference threshold is between the first temperature difference threshold and the second temperature difference threshold, it indicates that the temperature difference has not been reduced and is automatically switched to the second temperature difference threshold corresponding to the first wind speed, at this time, the second wind speed operation needs to be maintained, so that the temperature difference can be rapidly reduced, that is, the indoor temperature can rapidly solve the target temperature, so as to improve the efficiency of cooling or heating.
In other embodiments, the method further comprises:
when the temperature difference is smaller than the first temperature difference threshold value, starting to record the running time of the outdoor compressor;
if the operating frequency of the outdoor compressor is less than a frequency threshold, controlling an indoor fan of the air conditioner to operate at a first wind speed, including:
and if the running frequency of the outdoor compressor is smaller than the frequency threshold value and the running time is longer than a time threshold value, controlling the indoor fan to run at the first wind speed.
It is understood that the operation of the outdoor compressor of the air conditioner can produce cold air or hot air for the indoor fan, thereby enabling the indoor temperature to reach or approach the target temperature. Generally, the longer the outdoor compressor is operated, the more cold air or hot air is produced for the indoor. Therefore, the variation of the temperature difference can be reflected by the operation duration of the outdoor compressor, namely, the temperature difference is smaller when the operation duration is longer, and the temperature difference is larger when the operation duration is shorter.
In this embodiment, when the temperature difference is smaller than the first temperature difference threshold, the running duration of the outdoor compressor is recorded, or when an indoor fan of an air conditioner is switched to a rated lowest wind speed gear, the running duration of the indoor compressor is recorded. It is understood that if the time when the temperature difference is less than the first temperature difference threshold is recorded as a first time, when the temperature difference is less than the first temperature difference threshold, the operation time length of the outdoor compressor is started to be recorded, and it is understood that the time length is calculated from the first time, that is, the operation time length of the outdoor compressor at the first time is zero. And after the outdoor compressor operates for a period of time and after a time threshold value, the temperature difference can be understood to be smaller than the first temperature difference threshold value, at this time, if the operating frequency of the outdoor compressor is smaller than the frequency threshold value, the wind speed of the indoor fan can be reduced, the stability of cold or heat is ensured, the comfort level of a user is improved, and the power consumption of the air conditioner is reduced.
In other embodiments, the method further comprises:
and if the running time is less than or equal to the time threshold, controlling the indoor fan to run at the second wind speed.
In this embodiment, if the operation duration of the outdoor compressor does not reach the duration threshold, it indicates that the temperature difference is still relatively large, and if the indoor fan is controlled to operate at the second wind speed, the indoor temperature may not reach the target temperature quickly, so that the cooling or heating efficiency of the air conditioner is affected, and the user experience is affected.
In other real-time scenarios, the method further comprises:
and if the temperature difference is larger than the first temperature difference threshold value, controlling the indoor fan to be switched to a second wind speed gear which is higher than the first wind speed gear by one gear to operate.
So, when the difference in temperature is greater than first difference in temperature threshold value, in order to reach target temperature with indoor temperature fast, can improve the wind speed of indoor fan, be about to wind speed gear rise a gear to quick refrigeration or heat, improve the effect that the air conditioner refrigerates or heats, improve user's use and experience.
The following describes embodiments of the present invention in further detail with reference to application examples.
It should be noted that, in the above embodiment, if the operating frequency of the outdoor compressor is less than a frequency threshold, an indoor fan of the air conditioner may be controlled to operate at a first wind speed, where the first wind speed is a second wind speed that is less than a first wind speed gear of the indoor fan, and the first wind speed gear is a rated lowest wind speed gear. Therefore, the problem that the wind speed can be reduced under the condition of the lowest wind speed gear is solved, the stability of cold or heat is ensured, the comfort level of a user is improved, meanwhile, the noise of an indoor fan is reduced, and the power consumption of an air conditioner is reduced.
In the embodiment, the second temperature difference threshold is introduced, so that a new condition is provided for reducing the wind speed, namely, the accuracy of judgment of reducing the wind speed is improved. In addition, by introducing the second temperature difference threshold, the wind speed gear of the air conditioner is increased by a new gear, and the output wind speed at the new gear is lower than the wind speed output at the rated lowest gear. Thereby expanding the gears of the air conditioner. In the following, the min range is taken as a new range lower than the wind speed output from the rated lowest range in the above embodiment.
As shown in fig. 3, the control method of the air conditioner in the present application example includes:
step 30: starting an automatic wind speed gear adjusting mode;
step 31: running at the wind speed of the min gear;
step 32: judging whether a wind speed rising condition 1 is met; if the wind speed rising condition 1 is satisfied, executing the step 33, and if the wind speed rising condition is not satisfied, returning to the step 32;
here, the wind speed increase condition 1 is: the temperature difference between the indoor temperature and the target temperature is greater than a second temperature difference threshold, and/or the operating frequency of the outdoor compressor is greater than a frequency threshold.
Step 33: operating at a preset wind speed of 1 percent;
step 34: judging whether a wind speed rising condition 2 is met; if yes, executing step 36, and if not, executing step 35;
here, referring to fig. 2 again, taking the corresponding relationship between the wind speed gear and the temperature difference region in fig. 2 as an example, the wind speed increase condition 2 is that the temperature difference between the indoor temperature and the target temperature is greater than 4 degrees.
Step 35: judging whether a wind speed reduction condition 1 is met; if yes, executing step 31, and if not, executing step 33;
here, the wind speed drop condition 1 is: the temperature difference between the indoor temperature and the target temperature is less than a first temperature difference threshold, and the operating frequency of the outdoor compressor is less than or equal to a frequency threshold. Here, the condition Y is that the operating frequency of the outdoor compressor is less than or equal to the frequency threshold.
Step 36: operating at a preset wind speed of 20 percent;
step 37: judging whether the wind speed rising condition 3 is met, if so, executing a step 39, and if not, executing a step 38;
here, the wind speed increase condition 3 is: the temperature difference is greater than 6 degrees.
Step 38: judging whether the wind speed reduction condition 2 is met, if so, executing the step 33, and if not, executing the step 36;
the wind speed reduction condition 2 is that the temperature difference is less than 3 degrees.
Step 39: operating at a preset wind speed of 40 percent;
step 40: judging whether the wind speed rising condition 4 is met, if so, executing the step 42, and if not, executing the step 41;
here, the wind speed increase condition 4 is a temperature difference of more than 8 degrees.
Step 41: judging whether the wind speed reduction condition 3 is met, if so, executing the step 36, and if not, executing the step 39;
here, the wind speed drop condition 3 is a temperature difference of less than 5 degrees.
Step 42: operating at a preset wind speed of 60 percent;
step 43: judging whether a wind speed rising condition 5 is met; if yes, executing step 45; if not, go to step 44;
here, the wind speed increase condition 5 is a temperature difference of more than 10 degrees.
And step 44: judging whether a wind speed reduction condition 4 is met; if yes, executing step 39, and if not, executing step 42;
here, the wind speed drop condition 4 is a temperature difference of less than 7 degrees.
Step 45: operating at a preset wind speed of 80 percent;
step 46: judging whether the wind speed rising condition 6 is met, if so, executing a step 48, and if not, executing a step 47;
here, the wind speed increase condition 6 is a temperature difference of more than 12 degrees.
Step 47: judging whether the wind speed reduction condition 5 is met, if so, executing a step 42, and if not, executing a step 45;
here, the wind speed drop condition 5 is a temperature difference of less than 9 degrees.
And 48: operating at a preset wind speed of 100 percent;
step 49: judging whether the wind speed reduction condition 6 is met, if so, executing the step 45, and if not, executing the step 48;
here, the wind speed drop condition 6 is that the temperature difference is less than 11 degrees.
As can be seen from the above description, in the control method of the air conditioner according to the embodiment of the present application, the wind speed adjustment after the wind speed gear of the indoor fan is adjusted to the preset 1% wind gear is extended or extended, so that the wind speed can be continuously adjusted downward, the adjustment range of the supplied air is enlarged, the stability of the indoor cold or heat is maintained, the power consumption of the air conditioner is reduced, and the indoor breeze feeling and comfort are improved; furthermore, noise generated by the indoor fan is reduced, and user experience and use satisfaction are improved.
In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a control device for an air conditioner, where the control device for an air conditioner corresponds to the control method for an air conditioner, and each step in the control method for an air conditioner is also completely applicable to the control device for an air conditioner according to the embodiment of the present invention.
As shown in fig. 4, the control apparatus of the air conditioner includes: a first acquisition module 401, a second acquisition module 402 and a first control module 403;
a first obtaining module 401, configured to obtain a temperature difference between an indoor temperature of the air conditioner and a target temperature;
a second obtaining module 402, configured to, in an automatic wind speed gear adjusting mode, obtain an operating frequency of an outdoor compressor of the air conditioner if the temperature difference is smaller than a first temperature difference threshold; when the temperature difference is within the first temperature difference threshold value, an indoor fan of the air conditioner is switched to a first wind speed gear to operate, and the first wind speed gear is a rated lowest wind speed gear;
a first control module 403, configured to control an indoor fan of the air conditioner to operate at a first wind speed if the operating frequency of the outdoor compressor is less than a frequency threshold; and the first wind speed is less than a second wind speed corresponding to the first wind speed gear of the indoor fan.
In some embodiments, the apparatus further comprises:
and the second control module is used for controlling the indoor fan to operate at the second wind speed if the operating frequency of the outdoor compressor is greater than the frequency threshold.
In some embodiments, the apparatus further comprises:
the setting module is used for setting a second temperature difference threshold value, wherein the second temperature difference threshold value is smaller than the first temperature difference threshold value;
the first control module 403 is further configured to:
and if the operating frequency of the outdoor compressor is smaller than the frequency threshold value and the temperature difference is smaller than the second temperature difference threshold value, controlling the indoor fan to operate at the first wind speed.
In some embodiments, the apparatus further comprises:
and the third control module is used for controlling the indoor fan to operate at the second wind speed if the temperature difference is between the first temperature difference threshold value and the second temperature difference threshold value.
In some embodiments, the apparatus further comprises:
the recording module is used for starting to record the running time of the outdoor compressor when the temperature difference is smaller than the first temperature difference threshold value;
the first control module 403 is further configured to:
and if the running frequency of the outdoor compressor is smaller than the frequency threshold value and the running time is longer than a time threshold value, controlling the indoor fan to run at the first wind speed.
In some embodiments, the apparatus further comprises:
and the fourth control module is used for controlling the indoor fan to operate at the second wind speed if the operation time length is less than or equal to the time length threshold value.
In some embodiments, the apparatus further comprises:
and the fifth control module is used for controlling the indoor fan to be switched to a second wind speed gear which is higher than the first wind speed gear by one gear to operate if the temperature difference is larger than the first temperature difference threshold value.
In practical applications, the first obtaining module 401, the second obtaining module 402 and the first control module 403 may be implemented by a processor in a control device of an air conditioner. Of course, the processor needs to run a computer program in memory to implement its functions.
It should be noted that: in the control device of the air conditioner provided in the above embodiment, when the air conditioner is controlled, only the division of the above program modules is taken as an example, and in practical applications, the above processing distribution may be completed by different program modules according to needs, that is, the internal structure of the device may be divided into different program modules to complete all or part of the above described processing. In addition, the control device of the air conditioner and the control method embodiment of the air conditioner provided by the above embodiments belong to the same concept, and the specific implementation process thereof is detailed in the method embodiment and will not be described again.
Based on the hardware implementation of the program module, in order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides an air conditioner. Fig. 5 shows only an exemplary structure of the air conditioner, not the entire structure, and a part or the entire structure shown in fig. 5 may be implemented as necessary.
As shown in fig. 5, an air conditioner 500 according to an embodiment of the present invention includes: at least one processor 501, memory 502, and a user interface 503. The various components in the air conditioner 500 are coupled together by a bus system 504. It will be appreciated that the bus system 504 is used to enable communications among the components. The bus system 504 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 504 in fig. 5.
It can be understood that, the air conditioner of the embodiment of the present invention further includes: outdoor fan and indoor set satisfy the refrigeration or the heating demand of indoor space.
The user interface 503 in embodiments of the present invention may include a display, a keyboard, a mouse, a trackball, a click wheel, a key, a button, a touch pad, a touch screen, or the like.
The memory 502 in the embodiment of the present invention is used to store various types of data to support the operation of the air conditioner. Examples of such data include: any computer program for operating on an air conditioner.
The control method of the air conditioner disclosed by the embodiment of the invention can be applied to the processor 501, or can be realized by the processor 501. The processor 501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the control method of the air conditioner may be implemented by an integrated logic circuit of hardware in the processor 501 or instructions in the form of software. The Processor 501 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. Processor 501 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the memory 502, and the processor 501 reads information in the memory 502, and completes the steps of the control method of the air conditioner provided in the embodiment of the present invention in combination with hardware thereof.
In an exemplary embodiment, the air conditioner may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), FPGAs, general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.
It will be appreciated that the memory 502 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.
In an exemplary embodiment, the embodiment of the present invention further provides a storage medium, that is, a computer storage medium, which may be a computer-readable storage medium, for example, a memory 502 storing a computer program, where the computer program is executable by a processor 501 of a multi-split air conditioner to perform the steps of the method according to the embodiment of the present invention. The computer readable storage medium may be a ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM, among others.
It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In addition, the technical solutions described in the embodiments of the present invention may be arbitrarily combined without conflict.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method of controlling an air conditioner, comprising:
acquiring the temperature difference between the indoor temperature of the air conditioner and a target temperature;
in an automatic wind speed gear adjusting mode, when the temperature difference is equal to a first temperature difference threshold value, an indoor fan of the air conditioner is switched to a first wind speed gear to operate, and the first wind speed gear is a rated lowest wind speed gear; if the temperature difference is smaller than the first temperature difference threshold value, acquiring the operating frequency of an outdoor compressor of the air conditioner;
if the running frequency of the outdoor compressor is smaller than a frequency threshold value, controlling an indoor fan of the air conditioner to run at a first wind speed; and the first wind speed is lower than a second wind speed corresponding to the first wind speed gear of the indoor fan.
2. The method of claim 1, further comprising:
and if the running frequency of the outdoor compressor is greater than the frequency threshold value, controlling the indoor fan to run at the second wind speed.
3. The method of claim 1, further comprising:
setting a second temperature difference threshold, wherein the second temperature difference threshold is less than the first temperature difference threshold;
if the operating frequency of the outdoor compressor is less than a frequency threshold, controlling an indoor fan of the air conditioner to operate at a first wind speed, including:
and if the operating frequency of the outdoor compressor is smaller than the frequency threshold value and the temperature difference is smaller than the second temperature difference threshold value, controlling the indoor fan to operate at the first wind speed.
4. The method of claim 3, further comprising:
and if the temperature difference is between the first temperature difference threshold value and the second temperature difference threshold value, controlling the indoor fan to operate at the second wind speed.
5. The method of claim 1, further comprising:
when the temperature difference is smaller than the first temperature difference threshold value, starting to record the running time of the outdoor compressor;
if the operating frequency of the outdoor compressor is less than a frequency threshold, controlling an indoor fan of the air conditioner to operate at a first wind speed, including:
and if the running frequency of the outdoor compressor is smaller than the frequency threshold value and the running time is longer than a time threshold value, controlling the indoor fan to run at the first wind speed.
6. The method of claim 5, further comprising:
and if the running time is less than or equal to the time threshold, controlling the indoor fan to run at the second wind speed.
7. The method of claim 1, further comprising:
and if the temperature difference is larger than the first temperature difference threshold value, controlling the indoor fan to be switched to a second wind speed gear which is higher than the first wind speed gear by one gear to operate.
8. A control apparatus of an air conditioner, comprising:
the first acquisition module is used for acquiring the temperature difference between the indoor temperature of the air conditioner and the target temperature;
the second acquisition module is used for switching an indoor fan of the air conditioner to a first air speed gear for operation when the temperature difference is equal to a first temperature difference threshold value in an automatic air speed gear adjustment mode, wherein the first air speed gear is a rated lowest air speed gear; if the temperature difference is smaller than the first temperature difference threshold value, acquiring the operating frequency of an outdoor compressor of the air conditioner;
the first control module is used for controlling an indoor fan of the air conditioner to operate at a first wind speed if the operating frequency of the outdoor compressor is less than a frequency threshold; and the first wind speed is less than a second wind speed corresponding to the first wind speed gear of the indoor fan.
9. An air conditioner, characterized in that the air conditioner comprises: indoor fan and outdoor compressor, the air conditioner still includes: a processor and a memory for storing a computer program capable of running on the processor, wherein,
the processor, when executing the computer program, is configured to perform the steps of the method of any of claims 1 to 7.
10. A storage medium having a computer program stored thereon, the computer program, when executed by a processor, implementing the steps of the method of any one of claims 1 to 7.
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| CN114674068B (en) * | 2022-03-16 | 2024-03-19 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
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