CN106895519A - Air-conditioning system and air-conditioner control method - Google Patents

Air-conditioning system and air-conditioner control method Download PDF

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Publication number
CN106895519A
CN106895519A CN201710066399.7A CN201710066399A CN106895519A CN 106895519 A CN106895519 A CN 106895519A CN 201710066399 A CN201710066399 A CN 201710066399A CN 106895519 A CN106895519 A CN 106895519A
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CN
China
Prior art keywords
air
temperature
heat exchanger
outdoor
conditioning system
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Granted
Application number
CN201710066399.7A
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Chinese (zh)
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CN106895519B (en
Inventor
郭斌
韦汉儒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
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Priority to CN201710066399.7A priority Critical patent/CN106895519B/en
Publication of CN106895519A publication Critical patent/CN106895519A/en
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Publication of CN106895519B publication Critical patent/CN106895519B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0017Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
    • F24F5/0021Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice using phase change material [PCM] for storage
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61Control or safety arrangements characterised by user interfaces or communication using timers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • F24F2110/12Temperature of the outside air
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Fuzzy Systems (AREA)
  • Physics & Mathematics (AREA)
  • Atmospheric Sciences (AREA)
  • Sustainable Development (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a kind of air-conditioning system, including compressor, the first outdoor heat exchanger, indoor heat exchanger, orifice union, four-way valve, cold-storage device and triple valve, cold-storage device includes the second outdoor heat exchanger and the 3rd outdoor heat exchanger that are equipped with the cold-accumulating box of agent for storage of coldness and are placed in cold-accumulating box;Triple valve first end is connected through the 3rd heat exchanger with four-way valve, and the second end is connected with four-way valve, and the 3rd end is connected with the exhaust outlet of compressor;Second outdoor heat exchanger is connected between orifice union and indoor heat exchanger.The present invention also proposes a kind of control method of air-conditioner.The present invention is when triple valve first end is connected with the 3rd end, by the refrigerant of exhaust outlet of compressor discharge when by three outdoor heat exchangers, the cold for absorbing agent for storage of coldness flows through the temperature of refrigerant in the 3rd outdoor heat exchanger to reduce, so that refrigerant is by the temperature reduction after indoor heat exchanger, the suction temperature of compressor is reduced, further to reduce the normal operation that compressor exhaust temperature ensures system.

Description

Air-conditioning system and air-conditioner control method
Technical field
The present invention relates to air-conditioner field, more particularly to air-conditioning system and air-conditioner control method.
Background technology
High temperature area is big to refrigeration demand amount, but in the case of compared with high environment temperature, refrigerant is difficult to condensation causes system Pressure rise, compressor load is increased, and delivery temperature rises, and threatens the security reliability of whole system, and influence system is just Often operation.
The content of the invention
Control method it is a primary object of the present invention to propose a kind of air-conditioning system and air-conditioner, it is intended to during high-temperature refrigeration The normal operation of guarantee system.
The present invention provides a kind of air-conditioning system, and the air-conditioner system includes that compressor, the first outdoor heat exchanger, interior are changed Hot device, orifice union and four-way valve, the air-conditioning system also include cold-storage device and be connected to the four-way valve with it is described Triple valve between the exhaust outlet of compressor;The cold-storage device include the second outdoor heat exchanger, the 3rd outdoor heat exchanger and The cold-accumulating box of agent for storage of coldness is equipped with, second outdoor heat exchanger and the 3rd outdoor heat exchanger are placed in the cold-accumulating box;Institute The first end for stating triple valve is connected through the 3rd outdoor heat exchanger with the four-way valve, and the second end is connected with the four-way valve, 3rd end is connected with the exhaust outlet of the compressor;Second outdoor heat exchanger is connected to the orifice union and the room Between interior heat exchanger.
Alternatively, second outdoor heat exchanger is series between the orifice union and the indoor heat exchanger.
Alternatively, the agent for storage of coldness is low-temperature phase-change material, and the phase transition temperature of the low-temperature phase-change material is more than described the The evaporating temperature of two outdoor heat exchangers, and less than 15 DEG C.
Alternatively, the inwall of the cold-accumulating box is provided with heat-barrier material.
Alternatively, the air-conditioning system also includes the controller being connected with the four-way valve and triple valve, the controller Switching for controlling stream in the four-way valve and the triple valve.
Alternatively, the air-conditioning system also includes the outdoor temperature detection means being connected with the controller, the control Device is used for the switching of stream in the triple valve according to the temperature control that the outdoor temperature detection means is detected.
Additionally, to achieve the above object, the present invention also proposes a kind of control method of air-conditioner, the air-conditioner is included such as Above-described air-conditioning system, the air-conditioner control method includes:
It is under refrigeration mode in air-conditioner, the outdoor temperature that outdoor temperature detection means is detected is obtained in real time;
Judge the outdoor temperature whether less than preset temperature;
When outdoor temperature is detected more than or equal to the preset temperature, control triple valve connection first end and the 3rd End;
When outdoor temperature is detected less than the preset temperature, control triple valve connection the second end and the 3rd end.
Alternatively, before the step of control triple valve connection first end and three ends, the controlling party of the air-conditioner Method also includes step:
When outdoor temperature is detected more than or equal to the preset temperature, judge that the outdoor temperature is more than or equal to institute Whether the duration of preset temperature is stated more than preset duration;
When the outdoor temperature is more than preset duration more than or equal to the duration of the preset temperature, control is described Threeway Vavle switching connects the second end and the 3rd end.
Alternatively, it is under refrigeration mode in the air-conditioner, and current point in time is in preset time period, performs institute The step of stating the outdoor temperature that acquisition outdoor temperature detection means is detected in real time.
The control method of air-conditioning system proposed by the present invention and air-conditioner, when the second end of triple valve connects with the 3rd end The refrigerant of low-temp low-pressure enters the second outdoor heat exchanger, refrigerant in the second heat exchanger absorb the heat of agent for storage of coldness in cold-accumulating box with Make agent for storage of coldness cold-storage, when triple valve switches to first end and connected with the 3rd end, the refrigerant discharged by exhaust outlet of compressor is being passed through When crossing three outdoor heat exchangers, the cold for absorbing agent for storage of coldness flows through the temperature of refrigerant in the 3rd outdoor heat exchanger to reduce so that Refrigerant reduces the suction temperature of compressor, further to reduce compressor air-discharging by the temperature reduction after indoor heat exchanger Temperature ensures the normal operation of system.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of air-conditioning system of the present invention;
Fig. 2 is the schematic flow sheet of the embodiment of control method one of air-conditioner.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of air-conditioning system.
Reference picture 1, Fig. 1 is the structural representation of the embodiment of air-conditioning system of the present invention.
The present embodiment proposes a kind of air-conditioning system, and the air-conditioning compressor 10, the first outdoor heat exchanger 20, interior are changed Hot device 30, orifice union 40 and four-way valve 50, the air-conditioning system also include cold-storage device 60 and are connected to the four-way Triple valve 70 between the exhaust outlet of valve 50 and the compressor 10, the cold-storage device 60 include the second outdoor heat exchanger 61, 3rd outdoor heat exchanger 62 and the cold-accumulating box 63 of agent for storage of coldness is equipped with, the outdoor heat exchange of second outdoor heat exchanger 61 and the 3rd Device 62 is placed in the cold-accumulating box 63;The first end 71 of the triple valve 70 is through the 3rd outdoor heat exchanger 62 and described four Port valve 50 is connected, and the second end 72 is connected with the four-way valve 50, and the 3rd end 73 is connected with the exhaust outlet of the compressor 10;It is described Second outdoor heat exchanger 61 is connected between the orifice union 40 and the indoor heat exchanger 30.
It is understood that second outdoor heat exchanger 61 can be series between orifice union 40 and indoor heat exchanger 30, Also can be parallel on the stream between orifice union 40 and indoor heat exchanger 30.In parallel connection, can be in the second outdoor heat exchanger 61 Add magnetic valve on the stream at place, can should not cold-storage, i.e. outdoor temperature be relatively low or user selects non-cold-storage pattern when, close Close magnetic valve.Orifice union 40 can be expansion valve or capillary.
Agent for storage of coldness can be low-temperature phase-change material, and the phase transition temperature of the low-temperature phase-change material is more than second outdoor heat exchange The evaporating temperature of device 61, and less than 15 DEG C, to ensure that low-temperature phase-change material occurs when refrigerant is by the second outdoor heat exchanger 61 Phase transformation, such as inorganic crystal hydrated salt.
The inwall of the cold-accumulating box 63 is provided with heat-barrier material, to avoid phase-change material and temperature in the 3rd outdoor heat exchanger 62 Heat exchange between outdoor air higher.The heat-barrier material can be glass fibre, asbestos, rock wool, silicate etc..
The triple valve 70 can be electronic valve, and air-conditioning system can be set the controller being connected with triple valve 70 and four-way valve 50, For controlling the switching of stream in the four-way valve 50 and the triple valve 70.The switching of the triple valve 70 can send according to user Control instruction perform, such as when under air-conditioner runs on refrigeration mode, detect high-temperature refrigeration instruction, control triple valve 70 switch to first end 71 connects with the 3rd end 73.Or, may also set up outdoor temperature detection means (such as temperature sensor) Detection outdoor temperature, controller stream in the triple valve 70 according to the temperature control that the outdoor temperature detection means is detected Switching, when outdoor temperature is more than preset temperature value, the control connection of triple valve 70 first end 71 and the 3rd end 73.
When air-conditioning system runs on normal refrigerating mode, the second end 72 of triple valve 70 connects with the 3rd end 73, now Operation principle be:Compressor 10 gas outlet outflow HTHP gaseous coolant through three-way valve the second end 72 and the 3rd Four-way valve 50 is flowed into after end 73, then the first outdoor heat exchanger 20 is flowed into through four-way valve 50, the first outdoor heat exchanger 20 pairs is high The refrigerant of warm high pressure forms the liquid refrigerants of HTHP after being condensed, the liquid refrigerants of HTHP through throttle part section The liquid refrigerants of low-temp low-pressure is formed after stream effect, the liquid refrigerants of low-temp low-pressure absorbs when flowing through second Room external heat exchanger 61 and stores The heat of agent for storage of coldness in ice chest 63 so that the temperature of agent for storage of coldness is reduced to put aside cold, then the liquid refrigerant stream of low-temp low-pressure Enter after indoor heat exchanger 30 is evaporated, be changed into the gaseous coolant of low-temp low-pressure, and returning for compressor 10 is flowed into through four-way valve 50 Gas port.
When air-conditioner enters high-temperature refrigeration pattern, the first end 71 of triple valve 70 is connected with the 3rd end 73, and compressor 10 flows The gaseous coolant of the HTHP for going out flows through the 3rd outdoor heat exchanger 62, and the cold for absorbing agent for storage of coldness in cold-accumulating box 63 is lowered the temperature Just enter four-way valve 50 afterwards, then sequentially enter the first outdoor heat exchanger 20, orifice union 40, the second outdoor heat exchanger 61 and room Interior heat exchanger 30, and the gas returning port of compressor 10 is flowed into through four-way valve 50 so that the suction temperature of compressor 10 is relatively low, to avoid pressure The excessive discharge temperature of contracting machine 10, while continuing to absorb the heat in agent for storage of coldness when refrigerant is by the second outdoor heat exchanger 61, stores Cryogen continues cold-storage, so that agent for storage of coldness is persistently to the refrigerant cooling of the exhaust outlet of compressor 10 discharge.
The air-conditioning system that the present embodiment is proposed, the low-temp low-pressure when the second end 72 of triple valve 70 connects with the 3rd end 73 Refrigerant enters the second outdoor heat exchanger 61, and the refrigerant in the second heat exchanger 61 absorbs the heat of agent for storage of coldness in cold-accumulating box 63 so as to store Cryogen cold-storage, when triple valve 70 switches to first end 71 and connected with the 3rd end 73, the refrigerant discharged by exhaust outlet of compressor exists During by three outdoor heat exchangers, the cold for absorbing agent for storage of coldness flows through the temperature of refrigerant in the 3rd outdoor heat exchanger to reduce, and makes Refrigerant is obtained by the temperature reduction after indoor heat exchanger, the suction temperature of compressor is reduced, further to reduce compressor row Temperature degree ensures the normal operation of system.
Based on the air-conditioner including above-mentioned air-conditioning system, the present invention also proposes a kind of control method of air-conditioner, reference Fig. 2 air-conditioner control methods include:
Step S10, is under refrigeration mode in air-conditioner, and the outdoor temp that outdoor temperature detection means is detected is obtained in real time Degree;
Whether step S20, judge the outdoor temperature less than preset temperature;
Step S30, when outdoor temperature is detected more than or equal to the preset temperature, control triple valve connection first end With the 3rd end;
Step S40, when outdoor temperature is detected less than the preset temperature, control triple valve connection the second end and the 3rd End.
The air-conditioner control method is run in the controller described in above example, and the preset temperature can be 55~65 DEG C, outdoor temperature detection means can be installed in the outdoor unit of air-conditioner to detect outdoor temperature for outdoor temperature sensor, It is the second end in the state of triple valve when detecting outdoor temperature more than or equal to preset temperature, it may be determined that the state of triple valve When being connected with the 3rd end, then the connected state of switching three-way valve is first end and the 3rd end for connecting triple valve, in triple valve State is same when outdoor temperature is detected less than the preset temperature to be left intact when first end is connected with the 3rd end Reason.
It is understood that when outdoor temperature is detected more than or equal to preset temperature, can determine whether that outdoor temperature is more than Or equal to preset temperature duration whether be more than preset duration, outdoor temperature more than or equal to preset temperature it is lasting when When length is more than preset duration, control threeway Vavle switching connection the second end and the 3rd end, to avoid temperature fluctuation from causing triple valve Stream frequent switching, when the outdoor temperature is similarly detected in lasting preset duration less than the preset temperature, control The threeway Vavle switching connects the second end and the 3rd end.
Due in one day or in 1 year only can for some time outdoor temperature can reach such as 55 DEG C of temperature higher~ 65 DEG C, it is under refrigeration mode in the air-conditioner, and current point in time is in preset time period, performs step S10, is saved The energy consumption of air-conditioner.The preset time period can be at ten two points at 6~August daily noon at 4 points in afternoon, further, can also examine Area where surveying air-conditioner, determines whether to perform step S10 by combining location and time point, no longer goes to live in the household of one's in-laws on getting married herein State.
It is understood that when outdoor temperature is higher, even if control triple valve switches to first end and is connected with the 3rd end Be also possible to delivery temperature problem higher occur, then can be when outdoor temperature be detected more than or equal to preset temperature, in real time The delivery temperature of compressor is detected, when the delivery temperature of compressor is more than default delivery temperature, compressor limit frequency is can control and is transported OK.
The air-conditioner control method that the present embodiment is proposed, the low-temp low-pressure when the second end of triple valve connects with the 3rd end Refrigerant enters the second outdoor heat exchanger, and the refrigerant in the second heat exchanger absorbs the heat of agent for storage of coldness in cold-accumulating box so that agent for storage of coldness stores It is cold, when triple valve switches to first end and connected with the 3rd end, by the refrigerant of exhaust outlet of compressor discharge outdoor by the 3rd During heat exchanger, the cold for absorbing agent for storage of coldness flows through the temperature of refrigerant in the 3rd outdoor heat exchanger to reduce so that refrigerant is passing through Temperature reduction after indoor heat exchanger, reduces the suction temperature of compressor, and system is ensured further to reduce compressor exhaust temperature The normal operation of system.
The preferred embodiments of the present invention are these are only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims (9)

1. a kind of air-conditioning system, the air-conditioner system includes compressor, the first outdoor heat exchanger, indoor heat exchanger, throttling group Part and four-way valve, it is characterised in that the air-conditioning system also include cold-storage device and be connected to the four-way valve with it is described Triple valve between the exhaust outlet of compressor;The cold-storage device include the second outdoor heat exchanger, the 3rd outdoor heat exchanger and The cold-accumulating box of agent for storage of coldness is equipped with, second outdoor heat exchanger and the 3rd outdoor heat exchanger are placed in the cold-accumulating box;Institute The first end for stating triple valve is connected through the 3rd outdoor heat exchanger with the four-way valve, and the second end is connected with the four-way valve, 3rd end is connected with the exhaust outlet of the compressor;Second outdoor heat exchanger is connected to the orifice union and the room Between interior heat exchanger.
2. air-conditioning system as claimed in claim 1, it is characterised in that second outdoor heat exchanger is series at the throttling group Between part and the indoor heat exchanger.
3. air-conditioning system as claimed in claim 1, it is characterised in that the agent for storage of coldness is low-temperature phase-change material, the low temperature The phase transition temperature of phase-change material is more than the evaporating temperature of second outdoor heat exchanger, and less than 15 DEG C.
4. air-conditioning system as claimed in claim 3, it is characterised in that the inwall of the cold-accumulating box is provided with heat-barrier material.
5. the air-conditioning system as described in claim any one of 1-4, it is characterised in that the air-conditioning system also includes and described four Port valve and the controller of triple valve connection, the controller are used to control cutting for stream in the four-way valve and the triple valve Change.
6. air-conditioning system as claimed in claim 5, it is characterised in that the air-conditioning system also includes being connected with the controller Outdoor temperature detection means, the controller be used for according to the temperature control that the outdoor temperature detection means is detected The switching of stream in triple valve.
7. a kind of control method of air-conditioner, it is characterised in that the air-conditioner includes air-conditioning system as claimed in claim 7 System, the air-conditioner control method includes:
It is under refrigeration mode in air-conditioner, the outdoor temperature that outdoor temperature detection means is detected is obtained in real time;
Judge the outdoor temperature whether less than preset temperature;
When outdoor temperature is detected more than or equal to the preset temperature, control triple valve connection first end and the 3rd end;
When outdoor temperature is detected less than the preset temperature, control triple valve connection the second end and the 3rd end.
8. the control method of air-conditioner as claimed in claim 7, it is characterised in that the control triple valve connection first end and Before the step of three ends, the control method of the air-conditioner also includes step:
When outdoor temperature is detected more than or equal to the preset temperature, judge the outdoor temperature more than or equal to described pre- If whether the duration of temperature is more than preset duration;
When the outdoor temperature is more than preset duration more than or equal to the duration of the preset temperature, the threeway is controlled Vavle switching connects the second end and the 3rd end.
9. the control method of air-conditioner as claimed in claim 7 or 8, it is characterised in that be in refrigeration mould in the air-conditioner Under formula, and current point in time is in preset time period, performs the room that the real-time acquisition outdoor temperature detection means is detected The step of outer temperature.
CN201710066399.7A 2017-02-06 2017-02-06 Air-conditioning system and air-conditioner control method Active CN106895519B (en)

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CN106895519B CN106895519B (en) 2019-11-22

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Publication number Priority date Publication date Assignee Title
CN111603122A (en) * 2019-02-25 2020-09-01 佛山市顺德区美的洗涤电器制造有限公司 Washing electric appliance
CN112178879A (en) * 2020-09-18 2021-01-05 青岛海尔空调器有限总公司 Control method of air conditioner and air conditioner
CN113834140A (en) * 2021-08-31 2021-12-24 青岛海尔空调电子有限公司 Control method and system of air conditioner

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CN204629880U (en) * 2015-04-24 2015-09-09 英格索兰(中国)工业设备制造有限公司 A kind of car air-conditioner
CN105928251A (en) * 2016-05-06 2016-09-07 宁波工程学院 Heat pump
CN106369721A (en) * 2016-10-26 2017-02-01 西安交通大学 Household small-sized energy storage air conditioner system

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Publication number Priority date Publication date Assignee Title
JPH0861791A (en) * 1994-08-22 1996-03-08 Chubu Electric Power Co Inc Refrigerator with economizer
CN1566871A (en) * 2003-06-17 2005-01-19 乐金电子(天津)电器有限公司 Heat exchanger circuit for air conditioner
CN101799233A (en) * 2010-03-30 2010-08-11 南京都乐制冷设备有限公司 Method for controlling suction temperature of compressor in low temperature refrigeration system
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Publication number Priority date Publication date Assignee Title
CN111603122A (en) * 2019-02-25 2020-09-01 佛山市顺德区美的洗涤电器制造有限公司 Washing electric appliance
CN111603122B (en) * 2019-02-25 2023-09-01 佛山市顺德区美的洗涤电器制造有限公司 Washing electric appliance
CN112178879A (en) * 2020-09-18 2021-01-05 青岛海尔空调器有限总公司 Control method of air conditioner and air conditioner
CN113834140A (en) * 2021-08-31 2021-12-24 青岛海尔空调电子有限公司 Control method and system of air conditioner

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