CN111720962A - Refrigeration and dehumidification control method of variable frequency air conditioner and air conditioning system - Google Patents
Refrigeration and dehumidification control method of variable frequency air conditioner and air conditioning system Download PDFInfo
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- CN111720962A CN111720962A CN202010518657.2A CN202010518657A CN111720962A CN 111720962 A CN111720962 A CN 111720962A CN 202010518657 A CN202010518657 A CN 202010518657A CN 111720962 A CN111720962 A CN 111720962A
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The invention discloses a refrigeration and dehumidification control method of a variable frequency air conditioner and an air conditioning system, wherein the refrigeration and dehumidification control method comprises the following steps: s1, starting up; s2, collecting indoor environment temperature T1 and current set temperature Ts, comparing the temperature Ts-T1 with a first temperature difference value e, and judging whether the temperature Ts-T1 is less than or equal to e for at least (n-1) times in first preset time; s3, if not, entering a common refrigeration control mode; s4, if yes, continuously judging whether the time of | Ts-T1| ≦ e lasts for more than a second preset time; s5, if yes, entering a comfortable cooling control mode; and in the comfortable refrigeration control mode, the indoor evaporation temperature is lower than the dew point temperature by adjusting the frequency of the compressor. By adopting the refrigeration and dehumidification control method, the evaporation temperature is controlled to be lower than the dew point temperature for dehumidification, so that the problems of high room relative humidity and discomfort caused by long-term operation of the variable frequency air conditioner are solved, the comfort of a human body is improved, and the user experience is optimized.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a refrigeration and dehumidification control method of a variable frequency air conditioner and an air conditioning system.
Background
The existing air conditioning unit for the room is divided into a common constant-speed air conditioner and a variable-frequency air conditioner, the common constant-speed air conditioner achieves the purpose of adjusting the room by controlling the on and off of a compressor, and the room temperature can fluctuate greatly at this time. The inverter air conditioner can keep the room temperature at the set temperature by controlling the running speed of the compressor to adjust the room temperature, and the room temperature does not fluctuate as frequently as a constant speed machine, but people feel uncomfortable in a constant temperature room for a long time.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a refrigeration and dehumidification control method of an inverter air conditioner.
The refrigeration and dehumidification control method of the inverter air conditioner according to the embodiment of the first aspect of the invention comprises the following steps: s1, starting up; s2, collecting indoor environment temperature T1 and current set temperature Ts, comparing the temperature Ts-T1 with a first temperature difference value e, and judging whether the temperature Ts-T1 is less than or equal to e for at least (n-1) times in first preset time; s3, if not, entering a common refrigeration control mode; s4, if yes, continuously judging whether the time of | Ts-T1| ≦ e lasts for more than a second preset time; s5, if yes, entering a comfortable cooling control mode; and in the comfortable refrigeration control mode, the indoor evaporation temperature is lower than the dew point temperature by adjusting the frequency of the compressor.
The control method comprises the steps that when the room temperature reaches the current set temperature, the compressor always runs at low frequency, at the moment, the air conditioner hardly has dehumidification capacity, the relative humidity of the room is high, people in the room feel stuffy and uncomfortable for a long time, by adopting the refrigeration and dehumidification control method, when the indoor environment temperature tends to be stable and lasts for the second preset time, the control mode is switched to the comfortable refrigeration control mode, the comfortable refrigeration control mode enables the indoor environment temperature to be lower than the dew point temperature by controlling the evaporation temperature, dehumidification is carried out, the relative humidity of the room is reduced, the problems that the room relative humidity is high and people feel uncomfortable due to long-term running of the variable frequency air conditioner are solved, the comfort of a human body is improved, and the user experience is optimized.
In some embodiments, the cooling comfort control mode includes: s51, calculating comfortable relative humidity phi according to the indoor environment temperature T1, wherein phi is 115-2.5T 1; finding out the corresponding dew point temperature T according to the indoor environment temperature T1 and the relative humidity phi; calculating a corrected value t 'of the dew point temperature, wherein the t' is t-X, and X is the corrected value of the dew point temperature; collecting indoor evaporation temperature T2; s52, judging the range of the difference value between T2 and T ', correspondingly controlling the frequency of the compressor according to the range of the difference value between T2 and T', wherein the frequency of the compressor is controlled in the following three modes: maintaining the frequency of the current compressor, decreasing the frequency of the current compressor, increasing the frequency of the current compressor.
In some embodiments, further comprising: s53, if-1 is not less than T2-T is not less than 1, keeping the frequency of the current compressor running for the fourth preset time, exiting the comfort refrigeration control mode, and returning to the step S2.
In some embodiments, further comprising: s54, if T2-T "< -1, increasing the frequency of the current compressor by one gear, and returning to the step S51 every third preset time.
In some embodiments, further comprising: and S55, if the current compressor frequency is at the highest set operation frequency, keeping the current frequency to operate for a fourth preset time, and returning to the step S2.
In some embodiments, further comprising: s56, if T2-T "> 1, reducing the frequency of the current compressor by one gear, and returning to the step S51 every third preset time.
In some embodiments, further comprising: and S57, if the current compressor frequency is at the lowest set operation frequency, keeping the current frequency to operate for a fourth preset time, and returning to the step S2.
In some embodiments, after the compressor is continuously operated for a fifth preset time after the step S1, the step S2 is performed.
An air conditioning system according to an embodiment of a second aspect of the present invention includes: the air conditioner comprises a compressor, a four-way valve, an indoor unit heat exchanger, an outdoor unit heat exchanger, a throttling device, a first temperature sensor, a second temperature sensor and a third temperature sensor, wherein the four-way valve is provided with a first interface, a second interface, a fourth interface, and an inlet and an outlet of the compressor are respectively connected with the first interface and the third interface of the four-way valve; one end of the indoor unit heat exchanger is connected with a second interface of the four-way valve; one end of the outdoor unit heat exchanger is connected with a fourth interface of the four-way valve; the throttling device is connected between one end of the indoor unit heat exchanger and the other end of the outdoor unit heat exchanger; the first temperature sensor is connected with the indoor unit heat exchanger and used for collecting indoor environment temperature T1; the second temperature sensor is connected to the indoor unit heat exchanger to collect indoor evaporation temperature T2.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a refrigeration and dehumidification control method according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an air conditioning system according to an embodiment of the present invention.
Reference numerals:
an air-conditioning system (100) is provided,
the compressor (10) is provided with a compressor,
a four-way valve 20 is provided,
an indoor unit heat exchanger 30 is provided,
the outdoor unit heat exchanger 40 is installed in the outdoor unit,
the flow-restriction device 50 is provided with,
the temperature of the first temperature sensor 60 is,
a second temperature sensor 70.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
The cooling and dehumidifying control method of the inverter air conditioner and the air conditioning system according to the embodiment of the present invention will be described with reference to fig. 1 to 2.
As shown in fig. 1, a refrigeration and dehumidification control method for an inverter air conditioner according to an embodiment of a first aspect of the present invention includes:
and S1, starting up. Specifically, a remote control start-up key is pressed to control the air conditioner to start up.
S2, collecting indoor environment temperature T1 and current set temperature Ts, comparing the temperature Ts-T1 with a first temperature difference value e, and judging whether the temperature Ts-T1 is less than or equal to e for at least (n-1) times in first preset time.
The refrigeration control mode is selected on the air conditioner remote controller, the current set temperature Ts is selected, the numerical value is stored in the controller of the air conditioner, and when the data is needed, the current set temperature Ts is read. Then, within a first preset time (e.g. d minutes), making n comparison judgments on | Ts-T1| and e, if the number of times of-e ≦ Ts-T1 ≦ e is n or n-1, then go to step S4. Where d, e, n may be empirical values, such as d 10 minutes, e 1, n 5 times.
And S3, if not, entering a normal refrigeration control mode. That is, if the number of times-e ≦ Ts-T1 ≦ e is n-1 or less, the normal refrigeration control mode is entered, in which whether the frequency of the compressor is changed or not is affected by the current indoor ambient temperature T1, and the dew point temperature T and the indoor evaporating temperature T2 are not considered.
S4, if yes, continuing to judge whether the time of | Ts-T1| ≦ e lasts more than a second preset time. In other words, if the number of times-e ≦ Ts-T1 ≦ e is n times or n-1 times, it is continuously determined whether the time for which | Ts-T1| ≦ e is continuously satisfied exceeds a second preset time, which may be b minutes, which may be an empirical value, for example, b ≦ 60 minutes.
And S5, if yes, entering a comfort cooling control mode, wherein in the comfort cooling control mode, the indoor evaporation temperature is enabled to be lower than the dew point temperature by adjusting the frequency of the compressor. That is, if the time for which | Ts-T1| ≦ e is continuously satisfied exceeds the second preset time, the comfort cooling control mode is entered. In the comfort refrigeration control mode, the influence of the relation between the indoor evaporation temperature and the dew point temperature on the comfort of the human body is considered, so that in the comfort mode, the frequency of the compressor is adjusted to enable the indoor evaporation temperature to be lower than the dew point temperature, and the dehumidification effect is achieved.
The control method comprises the steps that when the room temperature reaches the current set temperature, the compressor always runs at low frequency, at the moment, the air conditioner hardly has dehumidification capacity, the relative humidity of the room is high, people in the room feel stuffy and uncomfortable for a long time, by adopting the refrigeration and dehumidification control method, when the indoor environment temperature tends to be stable and lasts for the second preset time, the control mode is switched to the comfortable refrigeration control mode, the comfortable refrigeration control mode enables the indoor environment temperature to be lower than the dew point temperature by controlling the evaporation temperature, dehumidification is carried out, the relative humidity of the room is reduced, the problems that the room relative humidity is high and people feel uncomfortable due to long-term running of the variable frequency air conditioner are solved, the comfort of a human body is improved, and the user experience is optimized.
In some embodiments, the cooling comfort control mode includes:
and S51, calculating comfortable relative humidity phi according to the indoor environment temperature T1, wherein phi is 115-2.5T 1.
And finding out the corresponding dew point temperature T according to the indoor environment temperature T1 and the relative humidity phi. Referring to table 1, the abscissa is the indoor ambient temperature T1, the ordinate is the relative humidity Φ, and each value of T1 and Φ is the corresponding dew point temperature T.
TABLE 1
And calculating a corrected value t 'of the dew point temperature, wherein the t' is t-X, and X is the corrected value of the dew point temperature. X is a fixed value and can be selected empirically, for example, X is 3 ℃, and the controller calculates the corrected value t "of the dew point temperature.
The indoor evaporation temperature T2 was collected. Specifically, the indoor evaporation temperature T2 may be detected by means of a sensor provided on the indoor unit evaporator coil.
S52, judging the range of the difference value between T2 and T ', correspondingly controlling the frequency of the compressor according to the range of the difference value between T2 and T', wherein the frequency of the compressor is controlled in the following three modes: maintaining the frequency of the current compressor, decreasing the frequency of the current compressor, increasing the frequency of the current compressor.
Thus, the air conditioner is adjusted to an operating state closer to dehumidification by adjusting the frequency of the compressor so that T2 and T ″ are changed correspondingly.
In some embodiments, further comprising: s53, if-1 is not less than T2-T is not less than 1, keeping the frequency of the current compressor running for the fourth preset time, exiting the comfort refrigeration control mode, and returning to the step S2. Wherein, the fourth preset time is c, and c is 15 minutes.
Therefore, when the temperature T2-T is more than or equal to-1 and less than or equal to 1, the air conditioner can perform dehumidification, the current frequency operation of the compressor is kept, the indoor environment temperature T1 and the indoor evaporation temperature T2 are detected again every third preset time, and the range of the difference value of the T2 and the T' is judged again; if the detection result is consistent with the initial result within the fourth preset time, the comfort cooling control mode is exited, and the step S2 is returned to for recalculation.
In some embodiments, further comprising: s54, if T2-T "< -1, increasing the frequency of the current compressor by one gear, and returning to the step S51 every third preset time. It should be noted that "first gear" refers to a frequency increase amount or a frequency decrease amount preset in the system. Thus, when the indoor evaporation temperature is much lower than the dew point temperature, the frequency of the compressor can be increased appropriately so that the difference T2-T' is more in the range of (-1, 1).
In some embodiments, further comprising: and S55, if the current compressor frequency is at the highest set operation frequency, keeping the current frequency to operate for a fourth preset time, and returning to the step S2. It should be noted that the maximum set operating frequency refers to the maximum operating frequency allowed in the comfort cooling control mode. Therefore, when the frequency of the compressor is increased to the maximum, no matter what range the difference value of T2-T' is, the compressor runs for the fourth preset time according to the current maximum set frequency, then the compressor exits from the comfort refrigeration control mode, and the compressor returns to the step S2 to acquire the temperature again and recalculate the judgment.
In some embodiments, further comprising: s56, if T2-T "> 1, reducing the frequency of the current compressor by one gear, and returning to the step S51 every third preset time. Thus, when the indoor evaporation temperature is higher than the dew point temperature by a large amount, the frequency of the compressor can be appropriately reduced so that the difference T2-T' gradually approaches the range of (-1, 1).
In some embodiments, further comprising: and S57, if the current compressor frequency is at the lowest set operation frequency, keeping the current frequency to operate for a fourth preset time, and returning to the step S2. Therefore, when the frequency of the compressor is reduced to the lowest, no matter what range the difference value of T2-T' is, the compressor operates for the fourth preset time according to the current highest set frequency, then the comfort cooling control mode exits, and the step S2 is returned to collect the temperature again and calculate and judge again.
In some embodiments, after the compressor is continuously operated for a fifth preset time after the step S1, the step S2 is performed. The fifth preset time may be an empirical value a, for example, a is 90 minutes. That is to say, after the compressor is started to operate for a period of time, the indoor environment temperature T1 and the current set temperature Ts are collected, and corresponding judgment is performed, so that the operation of the compressor is stable, and the temperature detection is more accurate.
The air conditioning system 100 according to the embodiment of the second aspect of the present invention includes: the air conditioner includes a compressor 10, a four-way valve 20, an indoor unit heat exchanger 30, an outdoor unit heat exchanger 40, a throttle device 50, a first temperature sensor 60, a second temperature sensor 70, and a third temperature sensor. As shown in fig. 2, the four-way valve 20 has first to fourth ports, and an inlet and an outlet of the compressor 10 are respectively connected to the first port and the third port of the four-way valve 20; one end of the indoor unit heat exchanger 30 is connected with a second interface of the four-way valve 20; one end of the outdoor heat exchanger 40 is connected to the fourth port of the four-way valve 20; the throttling device 50 is connected between one end of the indoor machine heat exchanger and the other end of the outdoor machine heat exchanger; the first temperature sensor 60 is connected with the indoor unit heat exchanger 30, and is used for collecting indoor environment temperature T1; the second temperature sensor 70 is connected to the indoor unit heat exchanger 30 to collect the indoor evaporating temperature T2.
Therefore, the air conditioning system 100 can increase the comfort of the human body while keeping the indoor constant temperature, and can achieve the effect of comfort while saving energy.
In summary, the embodiment of the present invention has the following features: 1. after the room temperature reaches the set temperature, the existing compressor 10 operates at a low frequency all the time, at this time, the air conditioner hardly has dehumidification, the room has high relative humidity, and people in the room feel stuffy and uncomfortable for a long time. According to the control mode of comfortable refrigeration, the dehumidification is carried out by controlling the evaporation temperature lower than the dew point temperature, and the comfort of a room is improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A refrigeration and dehumidification control method of an inverter air conditioner is characterized by comprising the following steps:
s1, starting up;
s2, collecting indoor environment temperature T1 and current set temperature Ts, comparing the temperature Ts-T1 with a first temperature difference value e, and judging whether the temperature Ts-T1 is less than or equal to e for at least (n-1) times in first preset time;
s3, if not, entering a common refrigeration control mode;
s4, if yes, continuously judging whether the time of | Ts-T1| ≦ e lasts for more than a second preset time;
s5, if yes, entering a comfortable cooling control mode;
and in the comfortable refrigeration control mode, the indoor evaporation temperature is lower than the dew point temperature by adjusting the frequency of the compressor.
2. The refrigeration dehumidification control method as recited in claim 1, wherein the refrigeration comfort control mode comprises:
s51, calculating comfortable relative humidity phi according to the indoor environment temperature T1, wherein phi is 115-2.5T 1;
finding out the corresponding dew point temperature T according to the indoor environment temperature T1 and the relative humidity phi;
calculating a corrected value t 'of the dew point temperature, wherein the t' is t-X, and X is the corrected value of the dew point temperature;
collecting indoor evaporation temperature T2;
s52, judging the range of the difference value between T2 and T ', correspondingly controlling the frequency of the compressor according to the range of the difference value between T2 and T', wherein the frequency of the compressor is controlled in the following three modes: maintaining the frequency of the current compressor, decreasing the frequency of the current compressor, increasing the frequency of the current compressor.
3. The refrigeration dehumidification control method as recited in claim 2, further comprising:
s53, if-1 is not less than T2-T is not less than 1, keeping the frequency of the current compressor running for the fourth preset time, exiting the comfort refrigeration control mode, and returning to the step S2.
4. The refrigeration dehumidification control method as recited in claim 2, further comprising:
s54, if T2-T "< -1, increasing the frequency of the current compressor by one gear, and returning to the step S51 every third preset time.
5. The refrigeration dehumidification control method as recited in claim 4, further comprising:
and S55, if the current compressor frequency is at the highest set operation frequency, keeping the current frequency to operate for a fourth preset time, and returning to the step S2.
6. The refrigeration dehumidification control method as recited in claim 2, further comprising:
s56, if T2-T "> 1, reducing the frequency of the current compressor by one gear, and returning to the step S51 every third preset time.
7. The refrigeration dehumidification control method as recited in claim 6, further comprising:
and S57, if the current compressor frequency is at the lowest set operation frequency, keeping the current frequency to operate for a fourth preset time, and returning to the step S2.
8. A refrigerating and dehumidifying control method as claimed in any one of claims 1-7, wherein after the step S1, after the compressor is continuously operated for a fifth preset time, the step S2 is performed.
9. An air conditioning system, comprising:
a compressor;
the four-way valve is provided with a first interface, a second interface, a third interface and a fourth interface, and the inlet and the outlet of the compressor are respectively connected with the first interface and the third interface of the four-way valve;
one end of the indoor unit heat exchanger is connected with a second interface of the four-way valve;
an outdoor heat exchanger; one end of the outdoor unit heat exchanger is connected with a fourth interface of the four-way valve;
the throttling device is connected between one end of the indoor unit heat exchanger and the other end of the outdoor unit heat exchanger;
the first temperature sensor is connected with the indoor unit heat exchanger and used for collecting indoor environment temperature T1;
and the second temperature sensor is connected to the indoor unit heat exchanger to acquire indoor evaporation temperature T2.
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| CN113503632A (en) * | 2021-08-24 | 2021-10-15 | 珠海拓芯科技有限公司 | Variable frequency air conditioner operation control method and device and air conditioner |
| CN113983587A (en) * | 2021-11-30 | 2022-01-28 | 海信（广东）空调有限公司 | Air conditioner and dehumidification method thereof |
| WO2023010636A1 (en) * | 2021-07-31 | 2023-02-09 | 广东美的制冷设备有限公司 | Method and device for detecting state of high-and-low pressure valve of air conditioner, air conditioner, and medium |
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| JP2016075441A (en) * | 2014-10-08 | 2016-05-12 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN104764147A (en) * | 2015-03-23 | 2015-07-08 | 美的集团股份有限公司 | Constant-temperature dehumidification control method and system of air conditioner |
| JP2018009714A (en) * | 2016-07-11 | 2018-01-18 | 株式会社リコー | Control device, apparatus control system and program |
| WO2018193622A1 (en) * | 2017-04-21 | 2018-10-25 | 三菱電機株式会社 | Air conditioning system, air conditioning communication device, and air conditioner |
| US20180313555A1 (en) * | 2017-05-01 | 2018-11-01 | Haier Us Appliance Solutions, Inc. | Air conditioning system including a reheat loop |
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