CN116026019B - Zero-wind frequency limiting control method and device and air conditioner - Google Patents
Zero-wind frequency limiting control method and device and air conditioner Download PDFInfo
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- CN116026019B CN116026019B CN202310159960.1A CN202310159960A CN116026019B CN 116026019 B CN116026019 B CN 116026019B CN 202310159960 A CN202310159960 A CN 202310159960A CN 116026019 B CN116026019 B CN 116026019B
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000005057 refrigeration Methods 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims 1
- 230000005494 condensation Effects 0.000 abstract description 38
- 238000009833 condensation Methods 0.000 abstract description 38
- 238000001816 cooling Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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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
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Abstract
The invention provides a zero-wind frequency limiting control method and device and an air conditioner, and relates to the technical field of air conditioners. The zero wind frequency limiting control method comprises the following steps: if the running mode of the air conditioner is a zero wind mode, acquiring the indoor wind shield and the outer ring temperature; the indoor wind gear represents the running gear of the fan of the inner machine of the air conditioner, and the outer ring temperature represents the temperature of the environment where the outer machine of the air conditioner is located. And determining a first frequency limiting proportion according to the indoor wind shield and the temperature of the outer ring. And controlling the operation of the air conditioner according to a first limiting frequency obtained by multiplying the first limiting frequency proportion and a highest operating frequency, wherein the highest operating frequency represents the highest operating frequency of a compressor of the air conditioner. The zero-wind frequency limiting control device and the air conditioner provided by the invention can execute the zero-wind frequency limiting control method. The zero-wind frequency limiting control method and device and the air conditioner can solve the technical problem that the refrigerating capacity and condensation risk of the air conditioner in a zero-wind mode are difficult to balance in the prior art.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a zero-wind frequency limiting control method and device and an air conditioner.
Background
In the prior art, in order to prevent air flow blown out by an air conditioner from being blown straight to a user during operation of the air conditioner, the air conditioner is carried with a zero wind mode. Under the condition of a zero wind mode, wind is discharged through the through holes on the air deflector, and the through holes on the air deflector can scatter airflow, so that the flowing speed of the airflow is weakened, the air supply distance of the airflow is reduced, and the purpose of preventing direct blowing is achieved. However, after the zero air mode is started, the air output is obviously reduced, so that the refrigerating capacity provided for the indoor is reduced, and if the compressor is blindly maintained at a higher operating frequency, the problem of condensation of the air conditioner is easily caused; based on the above, in the zero-wind mode of air conditioner operation, the supply of refrigerating capacity and the condensation risk are difficult to balance, and the use of users is affected.
Disclosure of Invention
The invention solves the technical problem that the refrigeration capacity and condensation risk of an air conditioner in a zero-wind mode are difficult to balance in the prior art.
In order to solve the above problems, the present invention provides a zero wind frequency limiting control method, comprising:
Acquiring an operation mode of an air conditioner;
If the running mode of the air conditioner is a zero wind mode, acquiring the indoor wind shield and the outer ring temperature; the indoor wind shield represents the operation gear of an inner machine fan of the air conditioner, and the outer ring temperature represents the temperature of the environment where the outer machine of the air conditioner is located;
determining a first frequency limiting proportion according to the indoor wind shield and the outer ring temperature;
And controlling the operation of the air conditioner according to a first limiting frequency obtained by multiplying the first limiting frequency proportion and the highest operating frequency, wherein the highest operating frequency represents the highest operating frequency of a compressor of the air conditioner.
Compared with the prior art, the zero wind frequency limiting control method provided by the invention has the beneficial effects that:
In the process of operating the air conditioner in the zero-wind mode, the outer ring temperature can reflect the temperature of the external environment, so that the indoor refrigerating capacity requirement can be judged, and the higher the outer ring temperature is, the higher the indoor refrigerating capacity requirement is, so that the first frequency limiting proportion can be adjusted according to the outer ring temperature, and the frequency limiting control of the compressor can be performed under the condition of ensuring that sufficient refrigerating capacity is provided for the indoor. In addition, the height of the indoor air shield can reflect the heat exchange efficiency of the heat exchanger, and the higher the indoor air shield is, the higher the heat exchange efficiency of the heat exchanger is; and under the condition of lower heat exchange efficiency, if the operation frequency of the compressor is higher, the temperature of the heat exchanger is lower and condensation is easy to form, so that the first frequency limiting proportion can be adjusted according to the indoor wind shield, and the compressor can be controlled in a frequency limiting manner under the condition of reducing the condensation. Based on the above, the compressor is controlled in a frequency limiting manner according to the outer ring temperature and the indoor wind shield, so that the indoor refrigerating capacity requirement can be met under the condition of reducing condensation, and the technical problem that the refrigerating capacity and the condensation risk of the air conditioner in the zero wind mode in the prior art are difficult to balance is solved.
Optionally, the indoor wind screen of the air conditioner comprises a first wind screen, a second wind screen and a third wind screen with rotation speed sequentially reduced;
the step of determining a first frequency limiting ratio according to the indoor wind shield and the outer ring temperature comprises the following steps:
And under the condition that the indoor wind shield is the second wind shield or the third wind shield, if the temperature of the outer ring is smaller than a first preset temperature, taking a first proportion as the first frequency limiting proportion.
Under the condition that the indoor wind shield is relatively low in rotating speed, the heat exchange efficiency of the heat exchanger is low, and on the basis of the heat exchange efficiency, under the condition that the operating frequency of the compressor of the air conditioner is high, the problem that condensation is easy to form due to the fact that the temperature of the heat exchanger is too low is solved; based on the above, the first ratio is used as the first limiting frequency to reduce the operation frequency of the compressor, so that the purpose of reducing the condensation can be achieved.
Optionally, the zero wind frequency limiting control method further includes:
Acquiring operation time, wherein the operation time represents the time of the air conditioner in the operation refrigeration mode;
and if the running time is less than or equal to a first preset time, executing the step of determining a first frequency limiting proportion according to the indoor wind shield and the outer ring temperature.
By acquiring the operation time, the operation time of the refrigeration mode can be judged, and the refrigerating capacity provided by the air conditioner indoors can be further judged, and the longer the operation time is, the larger the refrigerating capacity provided by the air conditioner indoors is; therefore, when the running time is smaller than the first preset time, the air conditioner provides less refrigerating capacity indoors, and at the moment, the refrigerating capacity requirement can be judged according to the outer ring temperature, so that the frequency limiting control of the compressor is performed under the condition that the refrigerating capacity is ensured to be enough, and the technical problem that the refrigerating capacity and condensation risk of the air conditioner in a zero-wind mode in the prior art are difficult to balance is further solved.
Optionally, the indoor wind screen of the air conditioner comprises a first wind screen, a second wind screen and a third wind screen with rotation speed sequentially reduced;
the zero wind frequency limiting control method further comprises the following steps:
In the case that the running time is greater than the first preset time and less than or equal to a second preset time;
If the indoor wind shield is the second wind shield, taking a second proportion as a second frequency limiting proportion under the condition that the temperature of the outer ring is smaller than a second preset temperature;
controlling the operation of the air conditioner according to a second limiting frequency obtained by multiplying the second limiting frequency proportion by the highest operating frequency;
If the indoor wind shield is the third wind shield, acquiring the humidity of the inner ring, and determining a third frequency limiting proportion according to the humidity of the inner ring and the temperature of the outer ring;
And controlling the operation of the air conditioner according to a third limiting frequency obtained by multiplying the third limiting frequency proportion and the highest operating frequency.
In the case that the operation time is greater than the first preset time and less than or equal to the second preset time, it means that the air conditioner provides a certain amount of cooling capacity to the indoor. Based on this, in the case that the indoor air shield is the lower third air shield, because the heat exchange efficiency of the heat exchanger is lower, the indoor humidity condition needs to be judged according to the inner ring humidity at this time, and the frequency of the compressor is limited according to the indoor humidity condition, so as to reduce the condensation of the air conditioner.
Optionally, if the indoor wind gear is the third wind gear, the step of acquiring the inner ring humidity and determining the third frequency limiting ratio according to the inner ring humidity and the outer ring temperature includes:
If the temperature of the outer ring is smaller than a third preset temperature, determining the third frequency limiting proportion according to the humidity of the inner ring;
The higher the inner ring humidity is, the smaller the third frequency limiting ratio is.
If the humidity of the inner ring is higher, the humidity in the room is higher, and the moisture content in the indoor air is higher, so that the air conditioner is easy to be condensed.
Optionally, the zero wind frequency limiting control method further includes:
if the running time is longer than the second preset time, acquiring the inner ring humidity;
determining a fourth frequency limiting proportion according to the inner ring humidity and the outer ring temperature;
And controlling the operation of the air conditioner according to a fourth limiting frequency obtained by multiplying the fourth limiting frequency proportion and the highest operating frequency.
And under the condition that the running time is longer than the second preset time, the air conditioner provides enough refrigerating capacity for the room, and at the moment, whether the air conditioner is easy to condense or not can be judged according to the inner ring humidity, so that the frequency limiting of the compressor is controlled according to the inner ring humidity, and the condensation of the air conditioner can be reduced.
Optionally, the step of determining a fourth frequency limiting ratio based on the inner ring humidity and the outer ring temperature comprises:
if the temperature of the outer ring is smaller than a fourth preset temperature, determining a fourth frequency limiting proportion according to the humidity of the inner ring; wherein, the higher the inner ring humidity is, the smaller the fourth frequency limiting proportion is.
If the humidity of the inner ring is higher, the humidity in the room is higher, and the moisture content in the indoor air is higher, so that the air conditioner is easy to be condensed.
Optionally, the indoor wind level of the air conditioner comprises a first wind level, a second wind level and a third wind level with rotation speed reduced in sequence, if the inner ring humidity is greater than the first humidity, the fourth frequency limiting proportion determined according to the inner ring humidity is equal in any one of the indoor wind levels;
and if the inner ring humidity is smaller than or equal to the first humidity, the higher the rotating speed of an inner machine fan of the air conditioner is, the larger the fourth frequency limiting proportion is determined according to the inner ring humidity.
Under the condition of lower inner ring humidity, if the indoor wind shield is lower, the heat exchange efficiency of the heat exchanger is lower, and at the moment, if the operation frequency of the compressor is higher, the temperature of the heat exchanger is lower, and condensation is easy to form, so that under the condition of the same inner ring humidity, the lower the rotating speed of the inner machine fan is, the lower the fourth frequency limiting proportion of the compressor is controlled, and the generation of the condensation can be reduced.
A zero wind limit frequency control device, comprising:
the first acquisition module is used for acquiring the operation mode of the air conditioner;
The second acquisition module is used for acquiring indoor wind shield and outer ring temperature under the condition that the running mode of the air conditioner is a zero wind mode; the indoor wind shield represents the operation gear of an inner machine fan of the air conditioner, and the outer ring temperature represents the temperature of the environment where the outer machine of the air conditioner is located;
the first control module is used for determining a first frequency limiting proportion according to the indoor wind shield and the outer ring temperature;
And the second control module is used for controlling the operation of the air conditioner according to a first limiting frequency obtained by multiplying the first limiting frequency proportion and the highest operating frequency, wherein the highest operating frequency represents the highest operating frequency of a compressor of the air conditioner.
An air conditioner comprises a controller, wherein the controller is used for executing the zero wind frequency limiting control method.
The beneficial effects of the zero-wind frequency limiting control device and the air conditioner provided by the invention relative to the prior art are the same as those of the zero-wind frequency limiting control method provided by the invention relative to the prior art, and are not repeated here.
Drawings
Fig. 1 is a flowchart of a zero wind frequency limiting control method provided in an embodiment of the present application;
FIG. 2 is a flowchart of another part of the zero wind frequency limiting control method according to the embodiment of the present application;
FIG. 3 is a flowchart of a further part of the zero wind frequency limiting control method according to the embodiment of the present application;
Fig. 4 is a schematic diagram of a functional module of a zero wind frequency limiting control device according to an embodiment of the present application.
Reference numerals illustrate:
10-zero wind frequency limiting control device; 100-a first acquisition module; 200-a second acquisition module; 300-a first control module; 400-a second control module; 500-a third acquisition module; 600-a third control module; 700-fourth control module.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
The embodiment of the application provides an air conditioner which can be used for providing an air conditioning effect for the indoor so as to improve the comfort level of indoor users. The air conditioner realizes the adjustment of indoor air quality by introducing air flow into the indoor. Generally, in order to prevent the air flow led out by the air conditioner from directly blowing to a user, the air conditioner is provided with a zero-wind mode, that is, the air is discharged through a plurality of through holes on an air deflector and/or a front panel of the air conditioner so as to break up the led-out air flow, thereby achieving the purpose of weakening the air flow and achieving the effect of preventing direct blowing.
However, the zero-wind mode may cause a reduction in the air output of the air conditioner, thereby affecting the cooling capacity provided by the air conditioner to the indoor space in some cases, and thus affecting the comfort of indoor users. However, blindly maintaining the compressor at a higher operating frequency to boost the amount of cooling provided indoors can cause the air conditioner to easily form condensation, thereby affecting the user experience.
In order to improve the above technical problems, in other words, to solve the technical problem that the refrigeration capacity and condensation risk of the air conditioner in the zero wind mode are difficult to balance in the prior art, the air conditioner of the application is provided.
The application also provides a zero-wind frequency limiting control method for the operation of the air conditioner, so as to solve the technical problem that the refrigeration capacity and condensation risk of the air conditioner in the zero-wind mode in the prior art are difficult to balance.
In order to conveniently execute the zero wind frequency limiting control method, in the embodiment, an outer ring temperature detection device, an inner ring humidity detection device and a timing device are further arranged on the air conditioner. The outer ring temperature detection device is arranged in an outdoor area and used for detecting the temperature of the environment where the outer machine of the air conditioner is located. The inner ring humidity detection device is arranged indoors and used for detecting the humidity of the indoor environment where the inner machine of the air conditioner is located. The timer is used for timing the execution of the refrigerating mode of the air conditioner.
In addition, the air conditioner further comprises a controller, and the outer ring temperature detection device, the inner ring humidity detection device and the timing device are all electrically connected with the controller. The outer ring temperature detection device can send the detected outer ring temperature to the controller, and the controller receives the outer ring temperature; the inner ring humidity detection device can send the detected inner ring humidity to the controller, and the controller receives the inner ring humidity; the timing device may then send the recorded time length to the controller, which may receive the recorded time length.
Alternatively, the controller may be an integrated circuit chip with signal processing capabilities. The controller may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a single-chip microcomputer, a micro-control unit (Microcontroller Unit, MCU), a complex Programmable logic device (Complex Programmable Logic Device, CPLD), a Field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA), an Application-specific integrated Circuit (ASIC), an embedded ARM, etc., and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present invention.
In a possible implementation manner, the air conditioner may further include a memory, where the memory is used to store program instructions that may be executed by the controller, for example, the zero-wind frequency limiting control device 10 provided in the embodiment of the present application, where the zero-wind frequency limiting control device 10 provided in the embodiment of the present application includes at least one of the at least one zero-wind frequency limiting control device and the at least one zero-wind frequency limiting control device may be stored in the memory in a software or firmware form. The Memory may be a stand-alone external Memory including, but not limited to, random access Memory (Random Access Memory, RAM), read Only Memory (ROM), programmable Read Only Memory (Programmable Read-Only Memory, PROM), erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM). The memory may also be provided integrally with the controller, e.g. the memory may be provided integrally with the controller in the same chip.
Based on the above provided air conditioner, referring to fig. 1, the zero wind frequency limiting control method provided by the application includes:
S1, acquiring an operation mode of the air conditioner.
The operation mode of the air conditioner may be directly acquired by the controller.
S2, if the operation mode of the air conditioner is a zero wind mode, acquiring the indoor wind shield and the outer ring temperature.
The indoor wind level represents the operation gear of the indoor unit fan of the air conditioner, and also can represent the rotating speed of the indoor unit fan, optionally, in some embodiments of the application, the indoor wind level of the air conditioner comprises a first wind level, a second wind level and a third wind level with sequentially reduced rotating speeds, and it should be understood that in other embodiments of the application, the number of indoor wind levels can be adjusted according to actual situations. The outer ring temperature represents the temperature of the external environment of the air conditioner. The indoor wind shield can be directly acquired by the controller; the outer ring temperature is sent to the controller by the outer ring temperature detecting device.
It should be noted that, generally, in the case of the air conditioner operating in the cooling mode, in order to prevent the user from being blown through by the air flow to reduce the comfort of the user, the zero-wind mode is turned on; that is, in the embodiment of the present application, generally, in the case where the air conditioner is in the zero wind mode, the operation mode of the air conditioner is simultaneously the cooling mode.
S3, determining a first frequency limiting proportion according to the indoor wind shield and the outer ring temperature.
S4, controlling the operation of the air conditioner according to a first limiting frequency obtained by multiplying the first limiting frequency proportion and the highest operating frequency.
The highest operating frequency refers to the highest operating frequency of the compressor of the air conditioner, and the highest operating frequency can be the rated highest operating frequency of the compressor when the air conditioner leaves the factory. The first limiting frequency represents the highest operating frequency at which the compressor of the air conditioner is operated, that is, the highest operating frequency of the compressor can only reach the first limiting frequency in the case that the controller controls the operation of the compressor of the air conditioner at the first limiting frequency; the first limiting frequency is less than or equal to the highest operating frequency.
In the process of operating the air conditioner in the zero-wind mode, the outer ring temperature can reflect the temperature of the external environment, so that the indoor refrigerating capacity requirement can be judged, and the higher the outer ring temperature is, the higher the indoor refrigerating capacity requirement is, so that the first frequency limiting proportion can be adjusted according to the outer ring temperature, and the frequency limiting control of the compressor can be performed under the condition of ensuring that sufficient refrigerating capacity is provided for the indoor. In addition, the height of the indoor air shield can reflect the heat exchange efficiency of the heat exchanger, and the higher the indoor air shield is, the higher the heat exchange efficiency of the heat exchanger is; and under the condition of lower heat exchange efficiency, if the operation frequency of the compressor is higher, the temperature of the heat exchanger is lower and condensation is easy to form, so that the first frequency limiting proportion can be adjusted according to the indoor wind shield, and the compressor can be controlled in a frequency limiting manner under the condition of reducing the condensation. Based on the above, the compressor is controlled in a frequency limiting manner according to the outer ring temperature and the indoor wind shield, so that the indoor refrigerating capacity requirement can be met under the condition of reducing condensation, and the technical problem that the refrigerating capacity and the condensation risk of the air conditioner in the zero wind mode in the prior art are difficult to balance is solved.
In this embodiment, optionally, in step S3, if the indoor wind level is the second wind level or the third wind level, if the outer ring temperature is less than the first preset temperature, the first ratio is the first frequency limiting ratio.
Alternatively, the value of the first preset temperature may be in the range of 35 ℃ to 45 ℃, in other words, the value of the first preset temperature may be 35 ℃, 36 ℃, 37 ℃, 38 ℃, 39 ℃, 40 ℃, 41 ℃, 42 ℃, 43 ℃, 44 ℃, or 45 ℃, with 43 ℃ being preferred. The first ratio may take a value of 70% -80%, in other words, the first ratio may take a value of 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79% or 80%, with 75% being preferred.
When the temperature of the outer ring is smaller than the first preset temperature, the temperature of the outer environment is lower, the refrigerating capacity in the corresponding room is required to be lower, and at the moment, the operating frequency of the compressor can be reduced under the condition that enough refrigerating capacity is ensured to be provided for the room, so that the frequency of the compressor can be limited. However, when the indoor air baffle is the first air baffle, the rotation speed of the fan of the internal machine is higher, the heat exchange efficiency of the heat exchanger is higher, and even if the operation frequency of the compressor is higher, the temperature of the heat exchanger is not lower, so that condensation is less likely to be formed, in other words, when the indoor air baffle is the first air baffle, the compressor does not need to be limited in frequency, so that the sufficient refrigerating capacity provided by the air conditioner is ensured. Under the condition that the indoor air shield is the second air shield or the third air shield, the rotating speed of the fan of the internal machine is relatively low, the heat exchange efficiency of the heat exchanger is low, if the air conditioner operates at a high operating frequency, the air conditioner is easy to form condensation, at the moment, the compressor needs to be subjected to frequency limiting control so as to reduce the condensation formed by the air conditioner, and therefore the refrigerating capacity and the condensation risk provided by the air conditioner are balanced.
In addition, it should be noted that, if the outer ring temperature is greater than the first preset temperature value, the outer ring temperature is higher, and the indoor demand for the refrigerating capacity is also greater at this time, so that the compressor does not need to be limited in frequency, so as to ensure that the air conditioner can provide sufficient refrigerating capacity indoors, and ensure the use comfort of users.
Further, in an embodiment of the present application, referring to fig. 2, the zero wind frequency limiting control method further includes:
S10, acquiring running time.
The running time represents the time of the air conditioner in a refrigerating mode, namely, when the air conditioner is started in the refrigerating mode, the timing device starts timing, and the recorded duration is the running time; the timing device may also send the run time to the controller in real time.
By acquiring the operation time, the operation time of the refrigeration mode can be judged, and the refrigerating capacity provided by the air conditioner indoors can be judged.
It should be noted that, under the condition that the air conditioner is shut down, the air conditioner is stopped in a fault or the operation mode is switched to the dehumidification mode or the heating mode, the timing device clears the recorded duration until the air conditioner is started in the refrigeration mode next time, and then the timing is started again.
If the running time is less than or equal to the first preset time, step S3 is executed to perform frequency limiting control on the air conditioner.
Alternatively, the value range of the first preset time may be 10min-20min, in other words, the value of the first preset time may be 10min, 11min, 12min, 13min, 14min, 15min, 16min, 17min, 18min, 19min or 20min, and preferably 15min.
And when the running time is smaller than the first preset time, the air conditioner provides less refrigerating capacity indoors, and the refrigerating capacity requirement can be judged according to the outer ring temperature at the moment, so that the frequency limiting control of the compressor is performed under the condition that the refrigerating capacity is ensured to be enough, and the technical problem that the refrigerating capacity and condensation risk of the air conditioner in a zero-wind mode in the prior art are difficult to balance is further solved.
In addition, it should be noted that the step S10 may be performed independently of the steps S1 and S2, that is, the step S10 may be performed when the air conditioner enters the cooling mode, and the step S2 may be performed when the step S2 is satisfied.
After the operation time is acquired, under the condition that the operation time is larger than the first preset time and smaller than or equal to the second preset time, the zero wind frequency limiting control method further comprises the following steps:
s211, if the indoor wind shield is the second wind shield, taking the second proportion as a second frequency limiting proportion under the condition that the temperature of the outer ring is smaller than a second preset temperature.
S212, controlling the operation of the air conditioner by a second limiting frequency obtained by multiplying the second limiting frequency proportion and the highest operating frequency.
The second limiting frequency represents the highest operating frequency at which the compressor of the air conditioner is operated, that is, the highest operating frequency of the compressor can only reach the second limiting frequency in the case that the controller controls the operation of the compressor of the air conditioner at the second limiting frequency; wherein the second limiting frequency is less than or equal to the highest operating frequency.
Alternatively, the second preset temperature may have a value of 35 ℃ to 45 ℃, in other words, the first preset temperature may have a value of 35 ℃, 36 ℃, 37 ℃, 38 ℃, 39 ℃, 40 ℃, 41 ℃, 42 ℃, 43 ℃, 44 ℃, or 45 ℃, with 43 ℃ being preferred. That is, the second preset temperature and the first preset temperature may have the same value, and of course, in other embodiments, the values of the first preset temperature and the second preset temperature may be different. In addition, the value of the second ratio may be 70% -80%, in other words, the value of the first ratio may be 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79% or 80%, with 75% being preferred. Similarly, the values of the first and second ratios may be the same, although in other embodiments, the values of the first and second ratios may be different. The value range of the second preset time may be 40min-50min, in other words, the value of the second preset time may be 40min, 41min, 42min, 43min, 44min, 45min, 46min, 47min, 48min, 49min or 50min, etc., where the second preset time is preferably 45min.
In the case that the operation time is greater than the first preset time and less than or equal to the second preset time, it means that the air conditioner provides a certain amount of cooling capacity to the indoor. If the indoor air baffle is a second air baffle, at the moment, the rotating speed of the fan of the inner machine is lower, namely the heat exchange efficiency of the heat exchanger is lower, so that the compressor needs to be subjected to certain frequency limiting control to prevent the problem that the air conditioner is easy to condensate due to the fact that the temperature of the heat exchanger is too low.
In addition, in the case that the operation time is greater than the first preset time and less than or equal to the second preset time, the zero wind frequency limiting control method further includes:
S221, if the indoor wind shield is a third wind shield, acquiring the humidity of the inner ring, and determining a third frequency limiting proportion according to the humidity of the inner ring and the temperature of the outer ring.
S222, controlling the operation of the air conditioner according to a third limiting frequency obtained by multiplying the third limiting frequency proportion and the highest operating frequency.
The third limiting frequency means the highest operating frequency at which the compressor of the air conditioner is operated, that is, in the case where the controller controls the operation of the compressor of the air conditioner at the third limiting frequency, the operating frequency of the compressor can reach only the third limiting frequency at the highest; wherein the third limiting frequency is less than or equal to the highest operating frequency.
The inner ring humidity represents the humidity of the indoor environment where the air conditioner is located, and the indoor humidity condition can be judged through the inner ring humidity, so that whether the moisture content in indoor air is higher or not is judged, and whether the air conditioner is easy to condense or not is conveniently judged.
In the case that the operation time is greater than the first preset time and less than or equal to the second preset time, it means that the air conditioner provides a certain amount of cooling capacity to the indoor. Based on this, in the case that the indoor air shield is the lower third air shield, because the heat exchange efficiency of the heat exchanger is lower, the indoor humidity condition needs to be judged according to the inner ring humidity at this time, and the frequency of the compressor is limited according to the indoor humidity condition, so as to reduce the condensation of the air conditioner.
Optionally, in step S222, if the outer ring temperature is less than a third preset temperature, a third frequency limiting ratio is determined according to the inner ring humidity. Wherein, the higher the inner ring humidity, the smaller the third frequency limiting proportion.
It should be noted that, when the humidity of the inner ring is higher, the moisture content in the indoor air is higher, and condensation is easily formed on the air conditioner during the circulation of the air flow; in addition, if the operating frequency of the compressor is high, the temperature of the heat exchanger is low, and dew is easily generated. Based on this, in the case that the humidity of the inner ring is high, it is necessary to reduce the operation frequency of the compressor so that the temperature of the heat exchanger is high, thereby achieving reduction of the generation of condensation.
For example, in the case where the inner ring humidity is greater than 50% and less than or equal to 60%, the value range of the third frequency limit ratio may be 50% -60%, that is, in the humidity interval described above, the value of the third frequency limit ratio may be 50%, 51%, 52%, 53%, 54%, 55%, 56%, 57%, 58%, 59%, 60%, or the like. In the case where the inner ring humidity is greater than 60% and less than or equal to 70%, the value range of the third frequency limit ratio may be 35% -45%, in other words, the value of the third frequency limit ratio may be 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%, 44%, 45%, or the like. In other words, the third frequency-limiting ratio may have a value of 30%, 31%, 32%, 33%, 34%, 35%, or the like.
In this embodiment, referring to fig. 3, after the operation time is acquired, if the operation time is greater than the second preset time, the zero wind frequency limiting control method further includes:
s311, acquiring the inner ring humidity.
S312, determining a fourth frequency limiting proportion according to the inner ring humidity and the outer ring temperature.
S313, controlling the operation of the air conditioner according to a fourth limiting frequency obtained by multiplying the fourth limiting frequency proportion and the highest operating frequency.
The fourth limiting frequency means the highest operating frequency at which the compressor of the air conditioner is operated, that is, the operating frequency of the compressor can only reach the fourth limiting frequency at the highest in the case that the controller controls the operation of the compressor of the air conditioner at the fourth limiting frequency; the fourth limiting frequency is less than or equal to the highest operating frequency.
And under the condition that the running time is longer than the second preset time, the air conditioner provides enough refrigerating capacity for the room, and at the moment, whether the air conditioner is easy to condense or not can be judged according to the inner ring humidity, so that the frequency limiting of the compressor is controlled according to the inner ring humidity, and the condensation of the air conditioner can be reduced.
In step S312, the fourth frequency limiting ratio is determined according to the inner ring humidity and the outer ring temperature, if the outer ring temperature is less than the fourth preset temperature value, the fourth frequency limiting ratio is determined according to the inner ring humidity at any indoor wind level. Wherein, if the inner ring humidity is higher, the fourth frequency limiting proportion is smaller.
If the humidity of the inner ring is higher, the indoor humidity is higher, and the moisture content in the indoor air is higher, so that the air conditioner is easy to be condensed.
Further, if the humidity of the inner ring is greater than the first humidity, in any indoor windshield, the fourth frequency limiting ratio determined according to the humidity of the inner ring is equal. If the inner ring humidity is smaller than or equal to the first humidity, the higher the rotating speed of an inner machine fan of the air conditioner is, the larger the fourth frequency limiting proportion is determined according to the inner ring humidity.
Alternatively, the first humidity may take a value of 68% -72%, in other words, the first humidity may take a value of 68%, 69%, 70%, 71% or 72%, etc., wherein 70% is preferred.
Under the condition of lower inner ring humidity, if the indoor wind shield is lower, the heat exchange efficiency of the heat exchanger is lower, and at the moment, if the operation frequency of the compressor is higher, the temperature of the heat exchanger is lower, and condensation is easy to form, so that under the condition of the same inner ring humidity, the lower the rotating speed of the inner machine fan is, the lower the fourth frequency limiting proportion of the compressor is controlled, and the generation of the condensation can be reduced.
For example, when the humidity of the inner ring is 75%, the air conditioner is in the first air range, the second air range or the third air range, and the value of the fourth frequency limiting ratio is 35%. If the humidity of the inner ring is 60%, the value of the fourth frequency limiting proportion is 60% when the air conditioner is in the first air gear, the value of the fourth frequency limiting proportion is 55% when the air conditioner is in the second air gear, the value of the fourth frequency limiting proportion is 50% when the air conditioner is in the third air gear, and the like.
In this embodiment, in order to execute the possible steps of the zero wind frequency limiting control method provided in each embodiment, please refer to fig. 4, fig. 4 shows a schematic functional block diagram of a zero wind frequency limiting control device 10 provided in the embodiment of the present application. The zero-wind frequency-limiting control device 10 is applied to an air conditioner, and the zero-wind frequency-limiting control device 10 provided by the embodiment of the application is used for executing the zero-wind frequency-limiting control method. It should be noted that, the basic principle and the technical effects of the zero wind frequency limiting control device 10 provided in this embodiment are substantially the same as those of the foregoing embodiments, and for brevity, reference may be made to the corresponding contents of the foregoing embodiments.
The zero wind frequency limiting control device 10 includes a first acquisition module 100, a second acquisition module 200, a first control module 300, and a second control module 400.
The first acquisition module 100 is used for acquiring an operation mode of the air conditioner.
Optionally, the first obtaining module 100 is configured to perform step S1 in the foregoing respective figures, so as to achieve a corresponding technical effect.
The second obtaining module 200 is configured to obtain, when the operation mode of the air conditioner is a zero wind mode, an indoor wind level and an outer ring temperature, where the indoor wind level represents an operation level of an indoor unit fan of the air conditioner, and the outer ring temperature represents a temperature of an environment where an outdoor unit of the air conditioner is located.
Optionally, the second obtaining module 200 is configured to perform step S2 in each of the foregoing figures, so as to achieve a corresponding technical effect.
It should be noted that the first acquisition module 100 and the second acquisition module 200 may be the same acquisition module.
The first control module 300 is configured to determine a first frequency limiting ratio according to an indoor windshield and an outer ring temperature.
Optionally, the first control module 300 is configured to execute step S3 and the sub-steps thereof in the foregoing respective diagrams, so as to achieve the corresponding technical effects.
The second control module 400 is configured to control the operation of the air conditioner according to a first frequency limit frequency obtained by multiplying a first frequency limit ratio and a highest operation frequency, wherein the highest operation frequency represents a highest operation frequency of a compressor of the air conditioner.
Optionally, the second control module 400 is configured to execute step S4 and the sub-steps thereof in the foregoing respective diagrams, so as to achieve the corresponding technical effects.
In addition, in the embodiment of the present application, the zero wind frequency limiting control device 10 may further include a third obtaining module 500, where the third obtaining module 500 is configured to obtain an operation time, and the operation time indicates a time when the air conditioner operates in the cooling mode.
Optionally, the third obtaining module 500 is configured to perform step S10 in each of the foregoing figures, so as to achieve a corresponding technical effect.
In addition, in the embodiment of the present application, the zero wind frequency limiting control apparatus 10 may further include a third control module 600 and a fourth control module 700.
The third control module 600 is configured to execute the steps S211, S212, S221 and S222 and the sub-steps thereof in the foregoing figures, so as to achieve the corresponding technical effects.
The fourth control module 700 is configured to execute steps S311 to S313 and sub-steps thereof in the foregoing figures, so as to achieve corresponding technical effects.
In summary, the method and the device for controlling zero wind frequency limitation and the air conditioner provided by the embodiments of the present application can enable the outer ring temperature to reflect the temperature of the external environment during the operation of the air conditioner in the zero wind mode, so as to determine the indoor cooling capacity requirement, and the higher the outer ring temperature is, the higher the indoor cooling capacity requirement is, so that the first frequency limitation ratio can be adjusted according to the outer ring temperature, so as to control the frequency limitation of the compressor under the condition of ensuring sufficient cooling capacity to be provided to the indoor. In addition, the height of the indoor air shield can reflect the heat exchange efficiency of the heat exchanger, and the higher the indoor air shield is, the higher the heat exchange efficiency of the heat exchanger is; and under the condition of lower heat exchange efficiency, if the operation frequency of the compressor is higher, the temperature of the heat exchanger is lower and condensation is easy to form, so that the first frequency limiting proportion can be adjusted according to the indoor wind shield, and the compressor can be controlled in a frequency limiting manner under the condition of reducing the condensation. Based on the above, the compressor is controlled in a frequency limiting manner according to the outer ring temperature and the indoor wind shield, so that the indoor refrigerating capacity requirement can be met under the condition of reducing condensation, and the technical problem that the refrigerating capacity and the condensation risk of the air conditioner in the zero wind mode in the prior art are difficult to balance is solved. In addition, the refrigerating capacity provided by the air conditioner to the indoor is judged according to the length of the running time, so that the frequency limiting control of the compressor is performed on the basis of the running time, and condensation can be reduced under the condition that sufficient refrigerating capacity is ensured to be provided to the indoor.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, of the flowcharts and block diagrams in the figures that illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present invention may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.
Claims (9)
1. The zero wind frequency limiting control method is characterized by comprising the following steps of:
Acquiring an operation mode of an air conditioner;
If the running mode of the air conditioner is a zero wind mode, acquiring the indoor wind shield and the outer ring temperature; the indoor wind shield represents the operation gear of an inner machine fan of the air conditioner, and the outer ring temperature represents the temperature of the environment where the outer machine of the air conditioner is located;
determining a first frequency limiting proportion according to the indoor wind shield and the outer ring temperature;
controlling the operation of the air conditioner according to a first limiting frequency obtained by multiplying the first limiting frequency proportion by a highest operating frequency, wherein the highest operating frequency represents the highest operating frequency of a compressor of the air conditioner;
the indoor wind shield of the air conditioner comprises a first wind shield, a second wind shield and a third wind shield, wherein the rotating speed of the first wind shield, the second wind shield and the third wind shield are sequentially reduced;
the step of determining a first frequency limiting ratio according to the indoor wind shield and the outer ring temperature comprises the following steps:
When the indoor wind shield is the second wind shield or the third wind shield, if the temperature of the outer ring is smaller than a first preset temperature, the first frequency limiting proportion is the first proportion; the value range of the first preset temperature is 35-45 ℃; the value of the first proportion is 70% -80%.
2. The zero-wind frequency-limiting control method according to claim 1, characterized in that the zero-wind frequency-limiting control method further comprises:
Acquiring operation time, wherein the operation time represents the time of the air conditioner in the operation refrigeration mode;
and if the running time is less than or equal to a first preset time, executing the step of determining a first frequency limiting proportion according to the indoor wind shield and the outer ring temperature.
3. The zero-wind frequency limiting control method according to claim 2, wherein the indoor wind level of the air conditioner comprises a first wind level, a second wind level and a third wind level, the rotation speed of which is sequentially reduced;
the zero wind frequency limiting control method further comprises the following steps:
In the case that the running time is greater than the first preset time and less than or equal to a second preset time;
If the indoor wind shield is the second wind shield, taking a second proportion as a second frequency limiting proportion under the condition that the temperature of the outer ring is smaller than a second preset temperature;
controlling the operation of the air conditioner according to a second limiting frequency obtained by multiplying the second limiting frequency proportion by the highest operating frequency;
If the indoor wind shield is the third wind shield, acquiring the humidity of the inner ring, and determining a third frequency limiting proportion according to the humidity of the inner ring and the temperature of the outer ring;
And controlling the operation of the air conditioner according to a third limiting frequency obtained by multiplying the third limiting frequency proportion and the highest operating frequency.
4. The zero-wind frequency limiting control method according to claim 3, wherein if the indoor wind level is the third wind level, the step of acquiring the inner ring humidity and determining the third frequency limiting ratio according to the inner ring humidity and the outer ring temperature comprises:
If the temperature of the outer ring is smaller than a third preset temperature, determining the third frequency limiting proportion according to the humidity of the inner ring;
The higher the inner ring humidity is, the smaller the third frequency limiting ratio is.
5. The method for controlling zero wind limit frequency according to claim 2, wherein,
The zero wind frequency limiting control method further comprises the following steps:
If the running time is longer than the second preset time, acquiring the humidity of the inner ring;
determining a fourth frequency limiting proportion according to the inner ring humidity and the outer ring temperature;
And controlling the operation of the air conditioner according to a fourth limiting frequency obtained by multiplying the fourth limiting frequency proportion and the highest operating frequency.
6. The zero wind frequency limiting control method of claim 5, wherein determining a fourth frequency limiting ratio based on the inner loop humidity and the outer loop temperature comprises:
if the temperature of the outer ring is smaller than a fourth preset temperature, determining a fourth frequency limiting proportion according to the humidity of the inner ring; wherein, the higher the inner ring humidity is, the smaller the fourth frequency limiting proportion is.
7. The method according to claim 6, wherein the indoor wind level of the air conditioner includes a first wind level, a second wind level, and a third wind level, the rotation speed of which decreases in order, and if the inner ring humidity is greater than the first humidity, the fourth frequency limit ratio determined according to the inner ring humidity is equal;
and if the inner ring humidity is smaller than or equal to the first humidity, the higher the rotating speed of an inner machine fan of the air conditioner is, the larger the fourth frequency limiting proportion is determined according to the inner ring humidity.
8. A zero-wind frequency-limiting control apparatus for executing the zero-wind frequency-limiting control method as set forth in claim 1, comprising:
the first acquisition module is used for acquiring the operation mode of the air conditioner;
The second acquisition module is used for acquiring indoor wind shield and outer ring temperature under the condition that the running mode of the air conditioner is a zero wind mode; the indoor wind shield represents the operation gear of an inner machine fan of the air conditioner, and the outer ring temperature represents the temperature of the environment where the outer machine of the air conditioner is located;
the first control module is used for determining a first frequency limiting proportion according to the indoor wind shield and the outer ring temperature;
and the second control module is used for controlling the operation of the air conditioner according to a first limiting frequency obtained by multiplying the first limiting frequency proportion and the highest operating frequency, wherein the highest operating frequency represents the highest operating frequency of a compressor of the air conditioner.
9. An air conditioner comprising a controller for executing the zero wind frequency limit control method according to any one of claims 1 to 7.
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