CN109114758B - Air conditioner system control method and air conditioner - Google Patents
Air conditioner system control method and air conditioner Download PDFInfo
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- CN109114758B CN109114758B CN201811169722.4A CN201811169722A CN109114758B CN 109114758 B CN109114758 B CN 109114758B CN 201811169722 A CN201811169722 A CN 201811169722A CN 109114758 B CN109114758 B CN 109114758B
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
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- Combustion & Propulsion (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioning system control method and an air conditioner, wherein the air conditioning system comprises the following components: a compressor; the heat exchanger is provided with a refrigerant pipeline and a heating water pipeline; the outlet of the compressor is connected with one end of the refrigerant pipeline, and the inlet of the compressor is connected with the other end of the refrigerant pipeline; the control method of the air conditioning system comprises at least the following steps: calculating the actual condensing temperature Tc of the refrigerant under the pressure according to the pressure of the refrigerant at the outlet of the compressor; setting a target condensation temperature Tcs; the frequency of the compressor is adjusted according to the difference between the actual condensing temperature Tc and the target condensing temperature Tcs. According to the control method of the air conditioning system, the heating efficiency of the air conditioner can be effectively improved, the energy consumption of the air conditioning system is reduced, the comfort of the air conditioning system is improved, and the control of the air conditioning system is more accurate.
Description
Technical Field
The invention relates to the field of household appliances, in particular to an air conditioner system control method and an air conditioner.
Background
Along with the implementation of the policy of changing coal into electricity and the restriction of installation space in China, the hydraulic module which can be used in combination with a multi-split air conditioner and integrates the functions of refrigeration, heating and hot water can more and more move into thousands of households. The energy conservation, comfort and reliability of the hydraulic module are more and more concerned by the market.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a control method for an air conditioning system, which can effectively improve the heating efficiency of an air conditioner, reduce the energy consumption of the air conditioning system, improve the comfort of the air conditioning system, and enable the control of the air conditioning system to be more accurate.
The invention also provides an air conditioner adopting the air conditioner system control method.
According to the air conditioning system control method of the present invention, the air conditioning system includes: a compressor; the heat exchanger is provided with a refrigerant pipeline and a heating water pipeline; the outlet of the compressor is connected with one end of the refrigerant pipeline, and the inlet of the compressor is connected with the other end of the refrigerant pipeline; the control method of the air conditioning system comprises at least the following steps: calculating the actual condensing temperature Tc of the refrigerant under the pressure according to the pressure of the refrigerant at the outlet of the compressor; setting a target condensation temperature Tcs; the frequency of the compressor is adjusted according to the difference between the actual condensing temperature Tc and the target condensing temperature Tcs.
According to the control method of the air conditioning system, the actual condensation temperature Tc of the refrigerant under the pressure is calculated according to the pressure of the refrigerant at the outlet of the compressor, the target condensation temperature Tcs is set, and the frequency of the compressor is adjusted according to the difference value between Tc and Tcs, so that the energy consumption of the air conditioner is reduced, the frequency adjustment of the compressor in the air conditioner is more accurate, and the air conditioning system is more comfortable.
According to one embodiment of the invention, the actual outlet water temperature Twout of the heating water pipeline is detected, the outlet water temperature Ts is currently set, and the target condensing temperature Tcs is adjusted according to the actual outlet water temperature Twout and the set outlet water temperature Ts.
According to one embodiment of the invention, preset values a, Δ Ts and Δ T0 exist, and if the Twout is less than or equal to Ts + a for a preset time T1, Tcs is Twout + Δ Ts; if Twout > Ts + a and lasts for a preset time T2, Tcs is Twout + Δ T, and Δ T0 ≦ Δ T < Δ Ts.
According to one embodiment of the invention, the Δ T is gradually decreased from Δ Ts to Δ T0.
According to one embodiment of the invention, preset values b and c exist, Tc + b is less than or equal to Tc and less than or equal to Tcs + c, whether frequency limitation exists in the compressor is judged, and if yes, the compressor operates at the limited frequency; otherwise the compressor remains running at the current frequency.
According to one embodiment of the invention, preset values b and c exist, Tc is more than Tcs + c, whether the frequency limit of the compressor exists or the lowest frequency is reached is judged, and if yes, the compressor operates at the limited frequency or the lowest frequency; otherwise, the frequency of the compressor is reduced until Tc + b is less than or equal to Tc and less than or equal to Tc + c or the lowest frequency is reached.
According to one embodiment of the invention, preset values b and c exist, Tc is less than Tcs + b, whether frequency limitation exists in the compressor or the compressor reaches the highest frequency is judged, and if yes, the compressor operates at the limited frequency or the highest frequency; otherwise, the frequency of the compressor is increased until Tc + b is less than or equal to Tc and less than or equal to Tc + c or the highest frequency is reached.
The air conditioning system according to the present invention is briefly described below.
An air conditioning system according to the present invention includes: a compressor; a heat exchanger, the heat exchanger comprising: the air conditioner comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger is provided with a first refrigerant opening and a second refrigerant opening, the second heat exchanger is provided with a third refrigerant opening and a fourth refrigerant opening, the second refrigerant opening is connected with the fourth refrigerant opening, an air outlet of a compressor is selectively connected with one of the first refrigerant opening and the third refrigerant opening, and an air inlet of the compressor is selectively connected with the other of the first refrigerant opening and the third refrigerant opening; a heating water line that selectively passes through the first heat exchanger or the second heat exchanger to exchange heat with the first heat exchanger or the second heat exchanger.
According to an embodiment of the present invention, the exhaust port of the compressor is connected to the first refrigerant opening, the intake port of the compressor is connected to the third refrigerant opening, and the heating water pipeline passes through the first heat exchanger.
According to the air conditioning system, the control method of the air conditioning system is adopted, and the air conditioning system adopts the control method of the air conditioning system, so that the air conditioner is more accurately controlled, the energy consumption is lower, the heating speed is higher, and the use experience of a user is effectively improved.
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 structural view of an air conditioning system according to the present invention;
FIG. 2 is a flow chart of an air conditioning system control method according to the present invention;
fig. 3 is a flowchart of another air conditioning system control method according to the present invention.
Reference numerals:
an air-conditioning system (100) is provided,
the compressor(s) 110 are (are) mounted,
a heat exchanger 120, a refrigerant pipeline 121, a heating water pipeline 122,
an expansion valve 130.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Referring to fig. 1 to 3, a control method of an air conditioning system 100 according to an embodiment of the present invention is described, in which the air conditioning system 100 includes a compressor 110 and a heat exchanger 120, the heat exchanger 120 having a refrigerant line 121 and a heating water line 122; an outlet of the compressor 110 is connected to one end of the refrigerant pipeline 121, an inlet of the compressor 110 is connected to the other end of the refrigerant pipeline 121, and an expansion valve 130 is further disposed between the inlet of the compressor 110 and the other end of the refrigerant pipeline 121.
As shown in fig. 3, the control method of the air conditioning system 100 includes at least the following steps: calculating an actual condensing temperature Tc of the refrigerant under the pressure according to the pressure of the refrigerant at the outlet of the compressor 110; setting a target condensation temperature Tcs; the frequency of the compressor 110 is adjusted according to the difference between the actual condensing temperature Tc and the target condensing temperature Tcs.
According to the control method of the air conditioning system 100 of the present invention, the set target condensing temperature Tcs is related to the actual outlet water temperature Twout, and the target condensing temperature Tcs can be always kept higher than the actual outlet water temperature Twout, so as to ensure that the temperature of the refrigerant in the refrigerant pipeline 121 is higher than the temperature of the water in the heating water pipeline 122, so that the water in the heating water pipeline 122 can continuously absorb the heat of the refrigerant in the refrigerant pipeline 121.
The frequency of the compressor 110 may affect the pressure in the refrigerant pipeline 121, when the frequency of the compressor 110 is increased, the pressure in the refrigerant pipeline 121 is increased, the calculated actual condensing temperature Tc is increased along with the increase of the pressure in the refrigerant pipeline 121, when the frequency of the compressor 110 is decreased, the pressure in the refrigerant pipeline 121 is decreased, and along with the decrease of the pressure in the refrigerant pipeline 121, the calculated actual condensing temperature Tc is decreased, and the actual condensing temperature Tc, that is, the temperature of the refrigerant in the refrigerant pipeline 121 may be changed by controlling the frequency of the compressor 110.
The frequency of the compressor 110 is controlled by the difference between the actual condensing temperature Tc and the set target condensing temperature Tcs, so that the frequency of the compressor 110 can reach an optimal state, the energy consumption of the air conditioning system 100 is reduced, the heating efficiency of the air conditioning system 100 is improved, and the air conditioning system 100 is more energy-saving and environment-friendly.
According to the control method of the air conditioning system 100 of the present invention, the actual condensing temperature Tc of the refrigerant under the pressure is calculated according to the pressure of the refrigerant at the outlet of the compressor 110, the target condensing temperature Tcs is set, and the frequency of the compressor 110 is adjusted according to the difference between Tc and Tcs, so as to reduce the energy consumption of the air conditioner, so that the frequency adjustment of the compressor in the air conditioner is more accurate, and the air conditioning system 100 is more comfortable.
According to an embodiment of the present invention, the actual outlet water temperature Twout of the heating water pipeline 122 is detected, the currently set outlet water temperature Ts is detected, and the target condensing temperature Tcs is adjusted according to the actual outlet water temperature Twout and the set outlet water temperature Ts. The actual leaving water temperature Twout is the leaving water temperature of the heating water pipeline 122, and the actual condensing temperature Tc needs to be always greater than the actual leaving water temperature Twout, so the target condensing temperature Tcs is related to the actual leaving water temperature Twout, and the set Δ T is added to the actual leaving water temperature Twout, so that the target condensing temperature Tcs in the refrigerant pipeline 121 can reach the required preset value.
Specifically, preset values a, Δ Ts and Δ T0 exist, and if the Twout is less than or equal to Ts + a and lasts for a preset time T1, Tcs is Twout + Δ Ts; if Twout > Ts + a and lasts for a preset time T2, Tcs is Twout + Δ T, and Δ T0 ≦ Δ T < Δ Ts.
The preset value a is a fixed value, when the actual outlet water temperature Twout is not greater than the set outlet water temperature Ts plus the fixed value a for a period of time T1, the target condensing temperature Tcs is made equal to the actual outlet water temperature Twout plus Δ Ts, and when the actual outlet water temperature Twout is greater than the set outlet water temperature Ts plus the fixed value a for a period of time T2, the target condensing temperature is equal to the actual outlet water temperature plus Δ T, and Δ T0 is not less than Δ T < Δ Ts, it can be understood that after the actual outlet water temperature Twout is greater than the set outlet water temperature Ts plus the fixed value a for a period of time T2, the target condensing temperature gradually decreases, and the Δ T gradually decreases from Δ Ts to Δ T0.
According to one embodiment of the invention, preset values b and c exist, Tc + b is not less than Tc and not more than Tcs + c, whether frequency limitation exists in the compressor 110 or not is judged, and if yes, the compressor 110 operates at the limited frequency; otherwise the compressor 110 remains operating at the current frequency.
It should be noted that, if the air conditioning system has a situation of over-high pressure, over-high temperature, etc., the system performs frequency limiting control to ensure its reliability, and sends a frequency limiting instruction to the compressor 110, so that the frequency of the compressor 110 after frequency limiting cannot be changed.
The preset values b and c are constants, the preset values b and c are the upper limit and the lower limit of the difference between the target condensing temperature and the actual condensing temperature, Tc + b is not less than Tc and not more than Tc + c can be equal to b is not less than Tc-Tcs and not more than c, when the difference between the target condensing temperature and the actual condensing temperature is between b and c, the actual condensing temperature can meet the current heat exchange requirement under the current pressure condition, the frequency of the compressor 110 is more suitable, and the system controls the compressor 110 to keep the current frequency.
When the actual condensing temperature is in the above range, it is necessary to determine whether the compressor 110 has a frequency limit, if so, the compressor 110 operates at the limited frequency, and if not, the compressor 110 maintains the current frequency, so that the actual condensing temperature is maintained between Tcs + b and Tcs + c, and the frequency of the compressor 110 does not need to be adjusted.
According to an embodiment of the present invention, preset values b and c exist, and Tc > Tcs + c, it is determined whether the compressor 110 has a frequency limit or reaches a lowest frequency, if yes, the compressor 110 operates at the frequency limit or the lowest frequency; otherwise, the frequency of the compressor 110 is reduced until Tc + b is less than or equal to Tc and less than or equal to Tc + c or the frequency of the compressor 110 reaches the lowest frequency.
When the actual condensing temperature Tc is greater than the target condensing temperature Tcs plus a preset value c, the actual condensing temperature is over high, the frequency of the compressor 110 needs to be reduced to reduce the actual condensing temperature, firstly, whether the frequency limitation exists in the compressor 110 is judged, and if the frequency limitation exists in the compressor 110, the compressor 110 operates at the limited frequency; further determining whether the compressor 110 reaches the lowest frequency, if the compressor 110 has reached the lowest frequency and cannot be adjusted any more, the compressor 110 operates at the lowest frequency, and the current lowest frequency is maintained to reduce the energy consumption of the air conditioning system 100.
When the frequency of the compressor 110 is not limited and does not reach the lowest frequency, the system controls the frequency of the compressor 110 to decrease the actual condensing temperature Tc in the refrigerant pipeline 121 until the actual condensing temperature Tc meets the condition that Tcs + b is less than or equal to Tc and less than or equal to Tcs + c, and then the frequency of the compressor 110 is decreased to the lowest frequency and cannot be adjusted continuously.
By the above-mentioned regulation method, it is possible to reduce the energy consumption of the air conditioning system by lowering the frequency of the compressor 110 when the actual condensing temperature Tc is too high.
According to an embodiment of the present invention, preset values b and c exist, and Tc < Tcs + b, it is determined whether the compressor 110 has a frequency limit or reaches a maximum frequency, if yes, the compressor 110 operates at the frequency limit or the maximum frequency; otherwise, the frequency of the compressor 110 is increased until Tc + b is less than or equal to Tc and less than or equal to Tc + c or the highest frequency is reached.
When the actual condensing temperature Tc is less than the target condensing temperature Tcs plus the preset value b, it indicates that the actual condensing temperature is too low, and the frequency of the compressor 110 needs to be increased to increase the actual condensing temperature Tc, first, it is determined whether the frequency limit exists in the compressor 110, and if the frequency limit exists in the compressor 110, the compressor 110 operates at the limited frequency; further determining whether the compressor 110 reaches the maximum frequency, if the compressor 110 has reached the maximum frequency and cannot be adjusted any more, the compressor 110 operates at the maximum frequency, and the current maximum frequency is maintained, so that the air conditioning system 100 maintains the current heating speed, and the water in the heating water pipeline 122 can be heated quickly.
When the frequency of the compressor 110 is not limited and the maximum frequency is not reached, the system controls the frequency of the compressor 110 to increase the actual condensing temperature Tc in the refrigerant pipeline 121 until the actual condensing temperature Tc meets the condition that Tcs + b is less than or equal to Tc and less than or equal to Tcs + c, and then the frequency of the compressor 110 is increased to the maximum frequency and cannot be adjusted continuously.
By the above adjusting method, when the actual condensing temperature Tc is too low, the actual condensing temperature Tc of the refrigerant in the refrigerant pipeline 121 can be increased by increasing the frequency of the compressor 110, so that the heat exchange efficiency between the refrigerant pipeline 121 and the heating water pipeline 122 can be increased, the temperature of the water in the heating water pipeline can be rapidly increased, and the comfort level of the air conditioning system 100 can be improved.
The air conditioning system 100 according to the present invention is briefly described below.
The air conditioning system 100 according to the present invention includes a compressor, a heat exchanger 120, and a heating water line 122, wherein the heat exchanger 120 includes: the air inlet of the compressor is selectively connected with the other one of the first refrigerant opening and the third refrigerant opening; the heating water line 122 may optionally pass through a first heat exchanger or a second heat exchanger to exchange heat with the first heat exchanger or the second heat exchanger, so as to heat or cool the liquid in the heating water line 122 by the air conditioning system 100.
According to an embodiment of the present invention, the exhaust port of the compressor is connected to the first refrigerant opening, the intake port of the compressor is connected to the third refrigerant opening, the heating water pipeline 122 passes through a first heat exchanger, which may be a condenser, and the refrigerant is condensed in the first heat exchanger to release heat to heat the liquid in the heating water pipeline 122.
According to the air conditioning system 100 of the present invention, the control method of the air conditioning system 100 is adopted, and the air conditioning system 100 of the present invention adopts the control method, so that the air conditioner has the advantages of more accurate control, lower energy consumption, faster heating speed, and effectively improved user experience.
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 referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
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. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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 (8)
1. An air conditioning system control method, the air conditioning system comprising: a compressor; the heat exchanger is provided with a refrigerant pipeline and a heating water pipeline; the outlet of the compressor is connected with one end of the refrigerant pipeline, and the inlet of the compressor is connected with the other end of the refrigerant pipeline;
the control method of the air conditioning system is characterized by comprising at least the following steps:
calculating the actual condensing temperature Tc of the refrigerant under the pressure according to the pressure of the refrigerant at the outlet of the compressor;
setting a target condensation temperature Tcs;
adjusting the frequency of the compressor according to the difference between the actual condensing temperature Tc and the target condensing temperature Tcs;
detecting the actual water outlet temperature Tbout of the heating water pipeline, setting the current water outlet temperature Ts, and adjusting the target condensing temperature Tcs according to the actual water outlet temperature Tbout and the set water outlet temperature Ts;
if the Twout is less than or equal to Ts + a and lasts for a preset time t1, Tcs is two Twout + Δ Ts, wherein the preset value a is a fixed value.
2. The method of claim 1, wherein the predetermined value Δ T0 is present, and if Twout > Ts + a and lasts for a predetermined time T2, Tcs is Twout + Δ T, and Δ T0 ≦ Δ T < Δ Ts.
3. The air conditioning system control method according to claim 2, wherein the Δ T is gradually decreased from Δ Ts to Δ T0.
4. The air conditioning system control method according to any one of claims 1 to 3, wherein preset values b and c exist, Tcs + b is not less than Tc and not more than Tcs + c, whether frequency limitation exists in the compressor is judged, and if yes, the compressor operates at the limited frequency; otherwise the compressor remains running at the current frequency.
5. The air conditioning system control method according to any one of claims 1 to 3, wherein preset values b and c exist, and Tc > Tcs + c, and whether the frequency limit of the compressor exists or the lowest frequency is reached is judged, and if yes, the compressor is operated at the limited frequency or the lowest frequency; otherwise, the frequency of the compressor is reduced until Tc + b is less than or equal to Tc and less than or equal to Tc + c or the lowest frequency is reached.
6. The air conditioning system control method according to any one of claims 1 to 3, wherein preset values b and c exist, Tc is less than Tcs + b, whether frequency limitation exists in the compressor or the highest frequency is reached is judged, and if yes, the compressor is operated at the limited frequency or the highest frequency; otherwise, the frequency of the compressor is increased until Tc + b is less than or equal to Tc and less than or equal to Tc + c or the highest frequency is reached.
7. An air conditioning system, comprising:
a compressor;
a heat exchanger, the heat exchanger comprising: the air conditioner comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger is provided with a first refrigerant opening and a second refrigerant opening, the second heat exchanger is provided with a third refrigerant opening and a fourth refrigerant opening, the second refrigerant opening is connected with the fourth refrigerant opening, an air outlet of a compressor is selectively connected with one of the first refrigerant opening and the third refrigerant opening, and an air inlet of the compressor is selectively connected with the other of the first refrigerant opening and the third refrigerant opening;
a heating water line that selectively passes through the first heat exchanger or the second heat exchanger to exchange heat with the first heat exchanger or the second heat exchanger;
the air conditioning system further includes the control method of any one of claims 1 to 6.
8. The air conditioning system as claimed in claim 7, wherein the discharge port of the compressor is connected to the first refrigerant opening, the intake port of the compressor is connected to the third refrigerant opening, and the heating water line passes through the first heat exchanger.
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| CN110160126B (en) * | 2019-04-18 | 2021-02-09 | 广东智科电子股份有限公司 | Variable-frequency heating multi-split control method, device, equipment and storage medium |
| CN110145906B (en) * | 2019-05-16 | 2021-10-26 | 广东美的暖通设备有限公司 | Refrigerant circulation system, control method thereof and computer readable storage medium |
| CN111397140A (en) * | 2020-04-14 | 2020-07-10 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device and air conditioner |
| CN111595001B (en) * | 2020-05-18 | 2022-07-19 | 广东美的暖通设备有限公司 | Air conditioning system, control method thereof, control device thereof and readable storage medium |
| CN113834150B (en) * | 2021-09-27 | 2022-09-27 | 广东美的制冷设备有限公司 | Multi-online heat pump system, control method thereof and computer readable storage medium |
| CN115420000A (en) * | 2022-09-19 | 2022-12-02 | 广东美的制冷设备有限公司 | Control method and device for outdoor fan of air conditioner, air conditioner and storage medium |
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| JP2004325030A (en) * | 2003-04-28 | 2004-11-18 | Fujitsu General Ltd | Control method of air conditioner |
| JP5042262B2 (en) * | 2009-03-31 | 2012-10-03 | 三菱電機株式会社 | Air conditioning and hot water supply complex system |
| CN101881498B (en) * | 2009-05-06 | 2012-11-14 | 欧威尔空调科技(中国)有限公司 | Multiple connected air conditioning system and control method thereof |
| JP5121908B2 (en) * | 2010-09-21 | 2013-01-16 | 三菱電機株式会社 | Air conditioner |
| JP6053826B2 (en) * | 2012-12-28 | 2016-12-27 | 三菱電機株式会社 | Air conditioner |
| CN104019528B (en) * | 2014-06-26 | 2016-06-22 | 东元总合科技（杭州）有限公司 | The energy-efficient operating control algolithm of convertible frequency air-conditioner |
| CN205505422U (en) * | 2016-03-31 | 2016-08-24 | 珠海格力电器股份有限公司 | Air conditioning system and air conditioner with same |
| CN105841379A (en) * | 2016-03-31 | 2016-08-10 | 珠海格力电器股份有限公司 | Air conditioning system and air conditioner with same |
| CN106052031B (en) * | 2016-06-21 | 2019-04-12 | 东莞市升微机电设备科技有限公司 | The frequency-changing control system and its method of the outdoor unit of thermostatic constant wet equipment |
| CN107543290A (en) * | 2017-09-04 | 2018-01-05 | 广东美的暖通设备有限公司 | Multi-online air-conditioning system control method and device and multi-online air-conditioning system |
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