CN114110977B - Control method of air conditioner and air conditioner - Google Patents
Control method of air conditioner and air conditioner Download PDFInfo
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- CN114110977B CN114110977B CN202111350611.5A CN202111350611A CN114110977B CN 114110977 B CN114110977 B CN 114110977B CN 202111350611 A CN202111350611 A CN 202111350611A CN 114110977 B CN114110977 B CN 114110977B
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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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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- 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
- F24F2110/20—Humidity
Abstract
The invention belongs to the field of air conditioners, and particularly relates to a control method of an air conditioner and the air conditioner, wherein the air conditioner is preset with a plurality of temperature and humidity intervals, and each temperature and humidity interval is provided with a corresponding temperature range, a corresponding humidity range and a corresponding dew point control parameter control method, and the control method comprises the following steps: acquiring the current indoor environment temperature, the current indoor environment humidity and the current air outlet temperature of the air conditioner in the refrigeration operation; determining a temperature and humidity interval of the current indoor environment and corresponding dew point control parameters according to the indoor environment temperature and the indoor environment humidity; acquiring a set temperature of a user, and determining a dew point control target temperature value corresponding to the dew point control parameter according to the set temperature of the user; and determining a control strategy of the compressor by combining the current indoor environment temperature, the current indoor environment humidity, the current air outlet temperature and the dew point control target temperature. The air conditioner can effectively improve the condensation condition, prevent cold air from directly blowing to a user and improve the comfort experience of the user.
Description
Technical Field
The invention belongs to the field of air conditioners, and particularly relates to a control method of an air conditioner and the air conditioner.
Background
In summer, the humidity of air in the indoor environment is high, and cold air can blow to a human body when the air conditioner is used for refrigeration or dehumidification, so that the human body is uncomfortable. Specified in national standard 33658: the higher the speed of the cooling air blowing to the human body and the lower the temperature, the higher the blowing sensation index and the lower the evaluation score, and the following is stipulated in national standard 7725: when the air conditioner is used for cooling, the air deflector is required to be arranged at the position where condensation is least likely to occur according to the specified condensation working condition, condensation cannot drop on the outer surface of the indoor unit after the air conditioner is operated for 4 hours, and indoor air supply cannot have water drops. Therefore, in order to meet the national standard requirement, the upper limit of the air deflector of the air conditioner is larger than the included angle during closing, but the included angle is larger, so that cold air blown out from the air outlet can be easily blown to the human body, the human body is uncomfortable, the existing anti-condensation control method usually only pursues the anti-condensation effect and ignores the user requirement, and the user experience is poorer.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a control method of an air conditioner and the air conditioner, wherein the control method can effectively improve the condensation condition, prevent cold air from directly blowing to a user and improve the comfort experience of the user.
In order to solve the technical problems, the invention provides a control method of an air conditioner, wherein the air conditioner is preset with a plurality of temperature and humidity intervals, each temperature and humidity interval is provided with a corresponding temperature range, humidity range and dew point control parameter, and the control method comprises the following steps of
Acquiring the current indoor environment temperature, the current indoor environment humidity and the current air outlet temperature T under the refrigeration operation of the air conditioner Air outlet ；
Determining a temperature and humidity interval of the current indoor environment and corresponding dew point control parameters according to the indoor environment temperature and the indoor environment humidity;
acquiring a set temperature of a user, and determining a dew point control target temperature value corresponding to the dew point control parameter according to the set temperature of the user;
combining the current indoor environment temperature, the current indoor environment humidity and the current air outlet temperature T Air outlet And determining a control strategy of the compressor according to the dew point control target temperature value, and controlling the compressor to operate according to the determined control strategy.
Further optionally, the air conditioner is provided with a first temperature and humidity region, a second temperature and humidity region and a third temperature and humidity region; the method for determining the temperature and humidity range of the current indoor environment and the corresponding dew point control parameters according to the indoor environment temperature and the indoor environment humidity comprises the following steps
Determining a temperature and humidity interval of the current indoor environment according to the indoor environment temperature and the indoor environment humidity;
when the indoor environment temperature is larger than or equal to the set temperature and the indoor environment humidity is larger than or equal to the set humidity, judging that the current indoor environment is in a first temperature and humidity interval, and determining the dew point control parameter as the indoor environment temperature and humidityDew point temperature T corresponding to degree tar-dew And the outlet air temperature T Air outlet A difference Δ T1;
when the indoor environment temperature is greater than or equal to the set temperature and the indoor environment humidity is less than the set humidity, judging that the current indoor environment is in a second temperature and humidity range, and determining the dew point control parameter as the air outlet temperature T Air outlet ；
When the indoor environment temperature is less than the set temperature, judging that the current indoor environment is in a third temperature-humidity interval, and determining the dew point control parameter as the set dew point temperature T tar-ew setting And the outlet air temperature T Air outlet The difference Δ T2.
Further optionally, each temperature-humidity interval corresponds to a mapping relation table of user set temperature-dew point control target temperature, the user set temperature is obtained, and the dew point control target temperature value corresponding to the dew point control parameter is determined according to the user set temperature, and the dew point control target temperature value includes
Determining a corresponding mapping relation table of user set temperature-dew point control target temperature according to the temperature and humidity interval of the current indoor environment;
and acquiring a user set temperature, determining a dew point control target temperature value corresponding to the user set temperature according to the mapping relation table of the user set temperature and the dew point control target temperature, and determining that the dew point control target temperature value is the dew point control target temperature value corresponding to the dew point control parameter.
Further optionally, when the indoor environment temperature is in a first temperature-humidity range, the dew point control target temperature value is Δ T Object 1 (ii) a The control strategy for determining the compressor by combining the current indoor environment temperature, the current indoor environment humidity, the current air outlet temperature and the dew point control target temperature comprises
Determining the current indoor environment temperature and the dew point temperature T under the indoor environment humidity according to the mapping relation table of the indoor environment temperature range, the indoor environment humidity range and the dew point temperature tar-dew ；
According to the dew point temperature T tar-dew And the outlet air temperature T Air outlet Calculating the difference DeltaT 1 Satisfies the following conditions:ΔT 1 ＝T tar-dew -T air outlet ；
According to the difference value Delta T 1 And Δ T Object 1 Calculating the temperature difference delta T, and satisfying the following conditions: Δ T = T tar-dew -T Air outlet -ΔT Object 1 ；
And determining a control strategy of the compressor according to the magnitude of the temperature difference delta T.
Further optionally, when the indoor environment temperature is in a second temperature-humidity range, the dew point control target temperature value is T Target air-out (ii) a The control strategy for determining the compressor by combining the current indoor environment temperature, the current indoor environment humidity, the current air outlet temperature and the dew point control target temperature comprises
According to the target outlet air temperature T Target air-out And the outlet air temperature T Air outlet Calculating a difference value delta T, satisfying: Δ T = T Target air-out -T Air outlet ；
And determining a control strategy of the compressor according to the magnitude of the temperature difference delta T.
Further optionally, when the indoor ambient temperature is in a third temperature and humidity range, the dew point control target temperature value is Δ T Object 2 (ii) a The control strategy for determining the compressor by combining the current indoor environment temperature, the current indoor environment humidity, the current air outlet temperature and the dew point control target temperature comprises
Obtaining the set dew point temperature T stored in the air conditioner tar-ew setting According to the set dew point temperature T tar-ew setting And the outlet air temperature T Air outlet Calculating the difference DeltaT 2 And satisfies the following conditions: delta T 2 ＝T tar-ew setting -T Air outlet ；
According to the difference value Delta T 2 And Δ T Object 2 The value calculation temperature difference delta T meets the following conditions: Δ T = Δ T 2 -ΔT Object 2 ；
And determining a control strategy of the compressor according to the magnitude of the temperature difference delta T.
Further optionally, the determining the control strategy of the compressor according to the magnitude of the temperature difference Δ T includes determining a temperature difference range in which the temperature difference Δ T is located in a mapping relation table of the temperature difference Δ T-frequency control strategy;
and determining a compressor control strategy corresponding to the temperature difference delta T according to the frequency control strategy corresponding to the temperature difference range in the mapping relation table of the temperature difference delta T-frequency control strategy.
Further optionally, in the mapping table of the temperature difference Δ T-frequency control strategy,
when the following conditions are satisfied: when the delta T is larger than the first temperature difference, reducing the first frequency variation on the basis of the current compressor frequency;
when the following conditions are satisfied: when the second temperature difference is more than 0 and less than delta T and less than or equal to the first temperature difference, reducing the second frequency variation on the basis of the current compressor frequency;
when the following conditions are satisfied: when the third temperature difference is less than or equal to 0 and delta T is less than or equal to the second temperature difference, maintaining the current compressor frequency;
when the following conditions are satisfied: when the fourth temperature difference is less than or equal to delta T and less than the third temperature difference, increasing a second frequency variation quantity on the basis of the current compressor frequency;
when the following conditions are met: when the delta T is less than the fourth temperature difference, increasing a first frequency variation quantity on the basis of the current compressor frequency;
wherein the first frequency variation is larger than the second frequency variation.
Further optionally, after controlling the compressor to operate according to the determined control strategy, the current indoor environment temperature, the indoor environment humidity and the air outlet temperature T are obtained again Air outlet Determining a temperature-humidity interval in which the current indoor environment is located according to the indoor environment temperature and the indoor environment humidity, and calculating to obtain a new temperature difference delta T according to the determined temperature-humidity interval;
and calculating the difference value of the temperature difference delta T of the two times, determining the control strategy of the compressor according to the newly calculated temperature difference delta T when the difference value is larger than the set temperature difference value, and otherwise, continuously operating according to the original control strategy of the temperature difference delta T.
The present invention also proposes a control device of an air conditioner, comprising one or more processors and a non-transitory computer-readable storage medium storing program instructions, the one or more processors being configured to implement the method according to any one of the above when the one or more processors execute the program instructions.
The invention also proposes a non-transitory computer-readable storage medium on which program instructions are stored, which program instructions, when executed by one or more processors, are adapted to implement the method according to any of the above.
The invention also proposes an air conditioner that employs a method according to any one of the preceding claims, or that comprises a control device according to the preceding claims, or that has a non-transitory computer-readable storage medium according to the preceding claims.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
according to the invention, the temperature and humidity conditions of the indoor environment are divided into a plurality of temperature and humidity intervals, corresponding condensation control parameters are determined according to different temperature and humidity intervals, a dew point control target temperature value is determined according to the temperature set by a user, the dew point control target temperature value is taken as a guide, and the compressor is regulated and controlled by combining the temperature and the humidity of the indoor environment and the air outlet temperature, so that the dual purposes of reducing condensation generation and improving the comfort of the indoor environment are finally achieved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1: is a control logic diagram of an embodiment of the present invention;
it should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Aiming at the problem that condensation generated by an existing air conditioner meets the national standard requirement, the upper limit position of the air deflector is larger than the included angle between the upper limit position and the closed position, cold air blown out of the air outlet easily blows to a human body, so that the human body is uncomfortable, the user experience is poor, the embodiment provides the control method of the air conditioner, the condensation condition can be effectively improved, the cold air can be prevented from directly blowing to the user, and the user comfort experience is improved. The implementation provides a control method of an air conditioner, and the air conditioner of the embodiment is provided with a first temperature and humidity interval, a second temperature and humidity interval and a third temperature and humidity interval;
the control method of the air conditioner of the present embodiment includes steps S1 to S4, as shown in the flowchart of fig. 1, wherein:
s1, acquiring the current indoor environment temperature, the current indoor environment humidity and the current air outlet temperature T of an air conditioner in refrigerating operation Air outlet ；
S2, determining a temperature and humidity interval of the current indoor environment and corresponding dew point control parameters according to the indoor environment temperature and the indoor environment humidity;
s3, acquiring a set temperature of a user, and determining a dew point control target temperature value corresponding to the dew point control parameter according to the set temperature of the user;
s4, combining the current indoor environment temperature, the current indoor environment humidity and the current air outlet temperature T Air outlet And determining a control strategy of the compressor according to the dew point control target temperature value, and controlling the compressor to operate according to the determined control strategy.
The refrigeration operation in this embodiment is an air conditioner operation refrigeration mode or dehumidification mode, and the indoor environment temperature, the indoor environment humidity, and the air outlet temperature T are obtained immediately after the air conditioner operation Air outlet Or the indoor environment temperature, the indoor environment humidity and the air outlet temperature T are obtained after the air conditioner operates for a period of time in a refrigerating mode Air outlet . Because the compressor is not stably operated when the air conditioner is just started, preferably, after the air conditioner is started and operated for a period of time, for example, after 40min, the compressor is stably operated, the exhaust temperature of the compressor reaches the target exhaust temperature, and then the indoor environment temperature, the indoor environment humidity and the outlet air temperature T are obtained Air outlet . And then determining the temperature and humidity range of the current indoor environment according to the acquired indoor environment temperature and indoor environment humidity.
Because the dew point temperature is the moisture condensation temperature corresponding to the temperature and the humidity in the air, the dew point temperature can determine the condition of dew condensation water generated on the surface of the air conditioner, and is also an expression of the blowing comfort of a human body, when the air outlet temperature is lower than the dew point temperature, the moisture on the surface of the human body can volatilize, people can feel dry and uncomfortable for a long time, and different humiture of the indoor environment can directly reflect the condensation condition of the air conditioner and the comfort of the indoor environment.
Further optionally, the air conditioner of this embodiment is provided with a first temperature and humidity range, a second temperature and humidity range, and a third temperature and humidity range; step S2 includes S21 to S24, wherein:
s21, determining a temperature and humidity interval of the current indoor environment according to the indoor environment temperature and the indoor environment humidity;
s22, when the indoor environment temperature is larger than or equal to the set temperature and the indoor environment humidity is larger than or equal to the set humidity, judging that the current indoor environment is in a first temperature and humidity interval, and determining that the dew point control parameter is the dew point temperature T corresponding to the indoor environment temperature and humidity tar-dew And the temperature T of the outlet air Air outlet A difference Δ T1;
s23, when the indoor environment temperature is larger than or equal to the set temperature and the indoor environment humidity is smaller than the set humidity, judging that the current indoor environment is in a second temperature and humidity range, and determining the dew point control parameter as the air outlet temperature T Air outlet ；
S24, when the indoor environment temperature is smaller than the set temperature, judging that the current indoor environment is in a third temperature and humidity range, and determining the dew point control parameter as the set dew point temperature T tar-ew setting And the temperature T of the outlet air Air outlet The difference Δ T2.
In this embodiment, since the indoor ambient temperature of the air conditioner during the cooling operation is generally above 26 ℃, this interval is also the main condensation temperature interval of the air conditioner, and the indoor temperature and humidity are divided into the following three intervals by combining the indoor ambient humidity.
When the indoor environment temperature is larger than or equal to the set temperature and the indoor environment humidity is larger than or equal to the set humidity, judging that the current indoor environment is in a first temperature and humidity range, wherein the first temperature and humidity range is a main range which has high refrigeration requirement and is easy to generate condensation, and at the moment, according to the dew point temperature T tar-dew Air outlet temperature T Air outlet The difference Δ T1 as a dew point control parameter. The selectable temperature and humidity range of the first temperature and humidity interval is as follows: the indoor environment temperature is more than or equal to 25 ℃ and the indoor environment humidity is more than or equal to 50%;
when the indoor environment temperature is more than or equal to the set temperature and the indoor environment humidity is less than the set humidity, judging that the current indoor environment is in a second temperature-humidity interval and the second temperature isThe wet section is a section with large refrigeration requirement and difficult condensation, and the condensation in the section is less, so the outlet air temperature T is directly changed Air outlet As a dew point control parameter. The selectable temperature and humidity range of the second temperature and humidity interval is as follows: the indoor environment temperature is more than or equal to 25 ℃ and the indoor environment humidity is less than 50%.
When the indoor environment temperature is less than the set temperature, judging that the current indoor environment is in a third temperature and humidity range, wherein the third temperature and humidity range is a range with low refrigeration demand, considering that under the condition, the environmental temperature users wear more clothes, the air conditioners are less used for refrigeration, and the dew point temperature is unified to be the set dew point temperature value T tar-ew setting And according to the set dew point temperature T tar-ew setting Air outlet temperature T Air outlet The difference Δ T2 as a dew point control parameter. The selectable temperature and humidity range of the third temperature and humidity interval is as follows: the indoor ambient temperature is less than 25 ℃.
Further optionally, each temperature-humidity interval corresponds to a mapping relation table of user-set temperature-dew point control target temperature, and step S3 includes S31 to S32, where:
s31, determining a corresponding mapping relation table of the user set temperature-dew point control target temperature according to the temperature and humidity interval of the current indoor environment;
s32, acquiring a user set temperature, determining a dew point control target temperature value corresponding to the user set temperature according to the mapping relation table of the user set temperature and the dew point control target temperature, and determining that the dew point control target temperature value is the dew point control target temperature value corresponding to the dew point control parameter.
In this embodiment, when the indoor environment is in the first temperature-humidity range, the range is most prone to condensation, so that the control is performed according to the difference between the outlet air temperature and the dew point temperature, and the user sets the dew point control target temperature in the mapping relation table of the temperature-dew point control target temperature to be Δ T Object 1 In one embodiment, Δ T Object 1 Temperature-delta T according to the user set shown in Table one Target Is determined by the mapping relation table.
Table one: user set temperature- Δ T Object 1 Corresponding relation
| Cold volume requirement dimension | Cold | Cool down | (Comfort) | Slightly warm |
| Set temperature of air conditioner | T Setting up ＜20℃ | 20℃≤T Setting up ＜23℃ | 23℃≤T Setting up ＜27℃ | 27℃≤T Setting up |
| ΔT Object 1 (℃) | 10 | 7 | 5 | 0 |
When the indoor environment is in the second temperature and humidity interval, condensation is not easy to occur in the interval, so that the dew point temperature control is cancelled and changed into the control through the outlet air temperature, and the user sets the dew point control target temperature in the temperature-dew point control target temperature mapping relation table to be T Target air-out In one embodiment, T Target air-out According to the user set temperature-T shown in the second table Target air-out Is determined by the mapping relation table.
Table two: user set temperature-T Target air-out Corresponding relation
| Cold volume requirement dimension | Cold | Cool down | (Comfort) | Slightly warm |
| Set temperature of air conditioner | T Setting up ＜20℃ | 20℃≤T Setting up ＜23℃ | 23℃≤T Setting up ＜27℃ | 27℃≤T Setting up |
| T Target air-out | 13 | 15 | 18 | 22 |
When the indoor environment is in a third temperature and humidity range, the clothes of users are worn more at the environment temperature, the requirement on cooling capacity is low, and the dew point temperature is unified to be a set temperature T under the working condition tar-ew setting For example, unified at 13 ℃, the user sets the dew point control target in the temperature-dew point control target temperature mapping tableTemperature is DeltaT Object 2 ，ΔT Object 2 Set temperature range- Δ T as shown in Table III Object 2 Is determined by the mapping relation table.
Table three: user set temperature- Δ T Object 2 Corresponding relation
| Cold volume requirement dimension | Cool down | (Comfort) | Slightly warm |
| Set temperature of air conditioner | T Setting up ＜20℃ | 20℃≤T Setting up ＜23℃ | 23℃≤T Setting up |
| ΔT Target | 4 | -3 | -7 |
Further optionally, when the indoor environment temperature is in a first temperature-humidity range, the dew point control target temperature value is Δ T Object 1 (ii) a Step S4 includes S41-S44, wherein:
s41, determining the current indoor environment temperature and the dew point temperature T under the indoor environment humidity according to the mapping relation table of the indoor environment temperature range, the indoor environment humidity range and the dew point temperature tar-dew ；
S42, according to the dew point temperature T tar-dew And the outlet air temperature T Air outlet Calculating the difference DeltaT 1 And satisfies the following conditions: delta T 1 ＝T tar-dew -T Air outlet ；
S43, according to the difference value delta T 1 And Δ T Object 1 Calculating the temperature difference delta T, and satisfying the following conditions: Δ T = T tar-dew -T Air outlet -ΔT Target 1；
And S44, determining a control strategy of the compressor according to the magnitude of the temperature difference delta T.
In this embodiment, the dew point temperature T is determined tar-dew Air outlet temperature T Air outlet And dew point control target temperature DeltaT Object 1 And calculating the temperature difference delta T, wherein when the value of the delta T is a positive value, the outlet air temperature is low, and when the value of the delta T is a negative value, the outlet air temperature is high, so that the control strategy of the compressor is determined according to the temperature difference delta T, the condensation condition can be improved, and a user can feel comfortable.
In a specific embodiment, the dew point temperature T is set when the indoor environment is in a first temperature and humidity range tar-dew And obtaining the temperature value according to a mapping relation table of the indoor environment temperature range, the indoor environment humidity range and the dew point temperature shown in the fourth table. Delta T Object 1 Set temperature range- Δ T as shown in Table two Object 1 Is determined by the mapping relation table.
Table four: mapping relation table of indoor environment temperature range, indoor environment humidity range and dew point temperature
Remarking: in the above table, T Inner ring For the indoor ambient temperature, each temperature point allows a certain temperature fluctuation margin, for example, the range of each temperature point is: (χ -0.5) < T Inner ring (x + 0.5) and x is each temperature point in the table I; when the temperature of the inner ring is lower than 16 ℃, processing according to a value corresponding to 16 ℃, and when the temperature of the inner ring is higher than 30 ℃, processing according to a value corresponding to 30 ℃, and making the following convention on the detected relative humidity:
RH is more than or equal to 0% and less than 15%, and table lookup is carried out according to RH = 10%; 15% to RH less than 25%, and looking up a table according to RH = 20%; RH is more than or equal to 25% and less than 35%, and table lookup is carried out according to RH = 30%; … … 95% < RH > 100% >, looking up the table according to RH = 100%;
further optionally, when the indoor environment temperature is in a second temperature and humidity range, the dew point control target temperature value is T Target air-out (ii) a Step S4 includes S41 'to S42', in which:
s41', according to the target outlet air temperature T Target air-out And the outlet air temperature T Air outlet Calculating a difference value delta T, satisfying: Δ T = T Target air-out -T Air outlet ；
And S42', determining a control strategy of the compressor according to the magnitude of the temperature difference delta T.
According to the air outlet temperature T in the embodiment Air outlet And target outlet air temperature T Target air-out The temperature difference Δ T is calculated. When the value of the delta T is a positive value, the outlet air temperature is low, and when the value of the delta T is a negative value, the outlet air temperature is high, so that the control strategy of the compressor is determined according to the temperature difference delta T, and a user feels comfortable.
Further optionally, when the indoor ambient temperature is in a third temperature and humidity range, the dew point control target temperature value is Δ T Object 2 (ii) a Step S4 includes S41 'to S43', wherein:
s41' obtaining the set dew point temperature T stored in the air conditioner tar-ew setting According to the set dew point temperature T tar-ew setting And the outlet air temperature T Air outlet Calculating the difference DeltaT 2 Satisfies the following conditions: delta T 2 ＝T tar-ew setting -T Air outlet ；
S42' according to the difference value Delta T 2 And Δ T Object 2 The value calculation temperature difference delta T meets the following conditions: Δ T = Δ T 2 -ΔT Object 2 ；
And S43', determining a control strategy of the compressor according to the magnitude of the temperature difference Delta T.
In this example, according to T tar-ew setting 、T Air outlet And dew point control target temperature DeltaT Target Calculating the temperature difference delta T, and when the value of delta T is a positive value, the outlet air temperature is lower, and the value is negativeThe value indicates that the outlet air temperature is higher, so that the control strategy of the compressor is determined according to the temperature difference delta T, and a user feels comfortable.
Further optionally, step S43 (or S43' or S43 ") comprises S431 to S432, wherein:
s431, determining the temperature difference range of the temperature difference delta T in a mapping relation table of the temperature difference delta T-frequency control strategy;
s432, determining a compressor control strategy corresponding to the temperature difference delta T according to the frequency control strategy corresponding to the temperature difference range in the mapping relation table of the temperature difference delta T-frequency control strategy. .
In a specific embodiment, after the temperature difference Δ T is obtained by calculation, the corresponding control strategy is determined according to the mapping table of the temperature difference Δ T-frequency control strategy shown in table five.
Table five: mapping relation table of temperature difference delta T-frequency control strategy
| ΔT(℃) | Frequency (Hz) | Frequency conversion mode of operation |
| 4℃＜ΔT Air outlet | F Current operating frequency - [ delta ] F1 (fuzzy control) | Frequency reduction |
| 1℃≤ΔT Air outlet ≤4℃ | F Current operating frequency - [ delta ] F2 (Fine control) | Micro-regulation |
| -1℃≤Delta T air outlet is less than or equal to 1 DEG C | F Current operating frequency | Maintenance of |
| -4≤ΔT Air outlet ＜-1℃ | F Current operating frequency Δ F2 (Fine control) | Micro-regulation |
| ΔT Air outlet ＜-4℃ | F Current operating frequency + (delta F1 (fuzzy control) | Raising the frequency |
In the above table, Δ F1 and Δ F2 are different frequency variations, wherein the first frequency variation > the second frequency variation. Δ F1 is a first frequency variation of the fuzzy control, e.g. Δ F1=4Hz, by increasing or decreasing the first frequency variation on the basis of the existing frequencies the wind outlet temperature may be significantly increased or decreased; Δ F2 is a second frequency variation of the fine fuzzy control, e.g. Δ F2=2Hz, the outlet air temperature may be slightly increased or decreased by increasing or decreasing the second frequency variation on the basis of the existing frequency; the accuracy of the air outlet temperature can be obviously improved through the fuzzy control and the fine control of the frequency, and the comfort level of a user is improved.
Specifically, in the mapping relation table of the temperature difference delta T-frequency control strategy,
when the following conditions are satisfied: when the delta T is larger than the first temperature difference, the outlet air temperature is higher, and the outlet air temperature needs to be obviously reduced, so that the first frequency variation is reduced on the basis of the current compressor frequency;
when the following conditions are satisfied: when the second temperature difference is more than 0 and less than delta T and less than or equal to the first temperature difference, the air outlet temperature is slightly high, and the air outlet temperature only needs to be slightly reduced, so that the second frequency variation is reduced on the basis of the current compressor frequency;
when the following conditions are satisfied: when the third temperature difference is less than or equal to 0 and less than or equal to delta T and less than or equal to the second temperature difference, the air outlet temperature is proper, and the current air outlet temperature is kept, so that the current compressor frequency is kept;
when the following conditions are satisfied: when the fourth temperature difference is less than or equal to delta T and less than the third temperature difference, the current air outlet temperature is slightly lower, and the air outlet temperature is only slightly increased, so that the second frequency variation is increased on the basis of the current compressor frequency;
when the following conditions are met: when the delta T is less than the fourth temperature difference, the current air outlet temperature is low, and the air outlet temperature needs to be obviously increased, so that the first frequency variation is increased on the basis of the current compressor frequency.
Further optionally, the control method further includes steps S5 to S6, where:
s5, controlling the compressor to operate according to the determined control strategy, and then obtaining the current indoor environment temperature, indoor environment humidity and air outlet temperature T again Air outlet Determining a temperature-humidity interval in which the current indoor environment is located according to the indoor environment temperature and the indoor environment humidity, and calculating to obtain a new temperature difference delta T according to the determined temperature-humidity interval;
and S6, calculating the difference value of the temperature difference delta T of the two times, determining the control strategy of the compressor according to the newly calculated temperature difference delta T when the difference value is larger than the set temperature difference value, and otherwise, continuously operating according to the original control strategy of the temperature difference delta T.
In this embodiment, in order to ensure the stability of the operation of the compressor, after the current temperature difference Δ T is confirmed at the start of the compressor and the control is performed according to the control strategy corresponding to the current Δ T, the control is performed again according to the control strategy corresponding to the newly calculated Δ T only when the newly calculated temperature difference Δ T has a set temperature difference value, for example, a change of more than 2 ℃, or else the operation is continued according to the control strategy of the original temperature difference Δ T.
The present embodiment also proposes a control device of an air conditioner, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions, when the one or more processors execute the program instructions, the one or more processors are configured to implement the method according to any one of the above.
The present embodiments also propose a non-transitory computer-readable storage medium having stored thereon program instructions which, when executed by one or more processors, are used to implement the method according to any one of the above.
The present embodiment also proposes an air conditioner employing the method of any one of the above, or comprising the control device described above, or having a non-transitory computer-readable storage medium according to the above.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (11)
1. The control method of the air conditioner is characterized in that a plurality of temperature and humidity intervals are preset in the air conditioner, each temperature and humidity interval is provided with a corresponding temperature range, a corresponding humidity range and a corresponding dew point control parameter, and the control method comprises the following steps of
Acquiring the current indoor environment temperature, the current indoor environment humidity and the current air outlet temperature T under the refrigeration operation of the air conditioner Air outlet ；
Determining a temperature and humidity interval of the current indoor environment and corresponding dew point control parameters according to the indoor environment temperature and the indoor environment humidity;
acquiring a set temperature of a user, and determining a dew point control target temperature value corresponding to the dew point control parameter according to the set temperature of the user;
combining the current indoor environment temperature, the current indoor environment humidity and the current air outlet temperature T Air outlet Determining a control strategy of the compressor according to the dew point control target temperature value, and controlling the compressor to operate according to the determined control strategy;
the air conditioner is provided with a first temperature and humidity region, a second temperature and humidity region and a third temperature and humidity region; the method for determining the temperature and humidity range of the current indoor environment and the corresponding dew point control parameters according to the indoor environment temperature and the indoor environment humidity comprises the following steps
Determining a temperature and humidity interval of the current indoor environment according to the indoor environment temperature and the indoor environment humidity;
when the indoor environment temperature is larger than or equal to the set temperature and the indoor environment humidity is larger than or equal to the set humidity, judging that the current indoor environment is in a first temperature and humidity interval, and determining that the dew point control parameter is the dew point temperature T corresponding to the indoor environment temperature and humidity tar-dew And the temperature T of the outlet air Air outlet A difference Δ T1;
when the indoor environment temperature is greater than or equal to the set temperature and the indoor environment humidity is less than the set humidity, judging that the current indoor environment is in a second temperature and humidity range, and determining the dew point control parameter as the air outlet temperature T Air outlet ；
When the indoor environment temperature is less than the set temperature, judging that the current indoor environment is in a third temperature-humidity interval, and determining the dew point control parameter as the set dew point temperature T tar-ew setting And the temperature T of the outlet air Air outlet The difference Δ T2.
2. The method as claimed in claim 1, wherein each of the temperature and humidity ranges is respectively corresponding to a mapping table of a user-set temperature and a dew point control target temperature, the obtaining of the user-set temperature and the determining of the dew point control target temperature value corresponding to the dew point control parameter according to the user-set temperature comprise
Determining a corresponding mapping relation table of user set temperature-dew point control target temperature according to the temperature and humidity interval of the current indoor environment;
and acquiring a user set temperature, determining a dew point control target temperature value corresponding to the user set temperature according to the mapping relation table of the user set temperature and the dew point control target temperature, and determining that the dew point control target temperature value is the dew point control target temperature value corresponding to the dew point control parameter.
3. The method as claimed in claim 2, wherein the dew point control target temperature value is Δ T when the indoor ambient temperature is in a first temperature and humidity range Object 1 (ii) a The control strategy for determining the compressor by combining the current indoor environment temperature, the current indoor environment humidity, the current air outlet temperature and the dew point control target temperature comprises
Determining the current indoor environment temperature and the dew point temperature T under the indoor environment humidity according to the mapping relation table of the indoor environment temperature range, the indoor environment humidity range and the dew point temperature tar-dew ；
According to the dew point temperature T tar-dew And the outlet air temperature T Air outlet Calculating the difference DeltaT 1 And satisfies the following conditions: delta T 1 =T tar-dew -T Air outlet ；
According to the difference value Delta T 1 And Δ T Object 1 Calculating the temperature difference delta T, and satisfying the following conditions: Δ T = T tar-dew -T Air outlet -ΔT Object 1 ；
And determining a control strategy of the compressor according to the temperature difference delta T.
4. The method as claimed in claim 2, wherein the dew point control target temperature value is T when the indoor ambient temperature is in a second temperature and humidity range Target air-out (ii) a The control strategy for determining the compressor by combining the current indoor environment temperature, the current indoor environment humidity, the current air outlet temperature and the dew point control target temperature comprises
According to the target air-out temperature T Target air-out And the outlet air temperature T Air outlet Calculating a difference value delta T, satisfying: Δ T = T Target air-out -T Air outlet ；
And determining a control strategy of the compressor according to the temperature difference delta T.
5. The control method of an air conditioner according to claim 2, wherein the dew point control target temperature value is Δ T when the indoor ambient temperature is in a third temperature and humidity range Object 2 (ii) a The control strategy for determining the compressor by combining the current indoor environment temperature, the current indoor environment humidity, the current air outlet temperature and the dew point control target temperature comprises
Obtaining the set dew point temperature T stored in the air conditioner tar-ew setting According to the set dew point temperature T tar-ew setting And the outlet air temperature T Air outlet Calculating the difference DeltaT 2 And satisfies the following conditions: delta T 2 =T tar-ew setting -T Air outlet ；
According to the difference value Delta T 2 And Δ T Object 2 The value calculation temperature difference delta T meets the following conditions: Δ T = Δ T 2 -ΔT Object 2 ；
And determining a control strategy of the compressor according to the magnitude of the temperature difference delta T.
6. The method as claimed in any one of claims 3 to 5, wherein the determining of the control strategy of the compressor according to the magnitude of the temperature difference Δ T comprises
Determining the temperature difference range of the temperature difference delta T in a mapping relation table of the temperature difference delta T-frequency control strategy;
and determining a compressor control strategy corresponding to the temperature difference delta T according to the frequency control strategy corresponding to the temperature difference range in the mapping relation table of the temperature difference delta T-frequency control strategy.
7. The method as claimed in claim 6, wherein in the mapping table of the temperature difference Δ T-frequency control strategy,
when the following conditions are satisfied: when the delta T is larger than the first temperature difference, the first frequency variation is reduced on the basis of the current compressor frequency;
when the following conditions are satisfied: when the second temperature difference is more than 0 and less than delta T and less than or equal to the first temperature difference, reducing the second frequency variation on the basis of the current compressor frequency;
when the following conditions are satisfied: when the third temperature difference is less than or equal to 0 and delta T is less than or equal to the second temperature difference, the current compressor frequency is kept;
when the following conditions are satisfied: when the fourth temperature difference is less than or equal to delta T and less than the third temperature difference, increasing a second frequency variation quantity on the basis of the current compressor frequency;
when the following conditions are satisfied: when the delta T is smaller than the fourth temperature difference, increasing a first frequency variation on the basis of the current compressor frequency;
wherein the first frequency variation is larger than the second frequency variation.
8. The control method of an air conditioner according to any one of claims 3-5,
controlling the compressor to operate according to the determined control strategy, and then obtaining the current indoor environment temperature, the indoor environment humidity and the air outlet temperature T again Air outlet Determining a temperature-humidity interval in which the current indoor environment is located according to the indoor environment temperature and the indoor environment humidity, and calculating to obtain a new temperature difference delta T according to the determined temperature-humidity interval;
and calculating the difference value of the temperature difference delta T of the two times, determining the control strategy of the compressor according to the newly calculated temperature difference delta T when the difference value is larger than the set temperature difference value, and otherwise, continuously operating according to the original control strategy of the temperature difference delta T.
9. A control apparatus of an air conditioner, comprising one or more processors and a non-transitory computer readable storage medium storing program instructions, the one or more processors being configured to implement the method according to any one of claims 1 to 8 when the program instructions are executed by the one or more processors.
10. A non-transitory computer-readable storage medium having stored thereon program instructions which, when executed by one or more processors, are to implement the method of any one of claims 1-8.
11. An air conditioner characterized in that it employs the method of any one of claims 1-8, or comprises the control device of claim 9, or has a non-transitory computer-readable storage medium according to claim 10.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005147490A (en) * | 2003-11-14 | 2005-06-09 | Mitsubishi Electric Corp | Air conditioner |
| CN108131804A (en) * | 2018-01-23 | 2018-06-08 | 广东海悟科技有限公司 | A kind of air-conditioning system and its control method that air-out humidity is controlled by dew-point temperature |
| CN110260482A (en) * | 2019-05-10 | 2019-09-20 | 珠海格力电器股份有限公司 | Control method, control device and the air-conditioning of air conditioner refrigerating mode operation |
| CN211451229U (en) * | 2019-12-04 | 2020-09-08 | 云南创佳楼宇科技工程有限公司 | High-precision constant-temperature constant-humidity laboratory energy-saving control device |
| CN111706969A (en) * | 2020-06-03 | 2020-09-25 | 青岛海尔空调器有限总公司 | Control method and device for dehumidification of air conditioner and air conditioner |
-
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005147490A (en) * | 2003-11-14 | 2005-06-09 | Mitsubishi Electric Corp | Air conditioner |
| CN108131804A (en) * | 2018-01-23 | 2018-06-08 | 广东海悟科技有限公司 | A kind of air-conditioning system and its control method that air-out humidity is controlled by dew-point temperature |
| CN110260482A (en) * | 2019-05-10 | 2019-09-20 | 珠海格力电器股份有限公司 | Control method, control device and the air-conditioning of air conditioner refrigerating mode operation |
| CN211451229U (en) * | 2019-12-04 | 2020-09-08 | 云南创佳楼宇科技工程有限公司 | High-precision constant-temperature constant-humidity laboratory energy-saving control device |
| CN111706969A (en) * | 2020-06-03 | 2020-09-25 | 青岛海尔空调器有限总公司 | Control method and device for dehumidification of air conditioner and air conditioner |
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