CN110836417A - Air conditioner and air conditioner control method - Google Patents

Air conditioner and air conditioner control method Download PDF

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Publication number
CN110836417A
CN110836417A CN201911125947.4A CN201911125947A CN110836417A CN 110836417 A CN110836417 A CN 110836417A CN 201911125947 A CN201911125947 A CN 201911125947A CN 110836417 A CN110836417 A CN 110836417A
Authority
CN
China
Prior art keywords
refrigerant
branch
heating
enthalpy
air conditioner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911125947.4A
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Chinese (zh)
Inventor
张仕强
朱世强
李立民
金孟孟
周潮
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201911125947.4A priority Critical patent/CN110836417A/en
Publication of CN110836417A publication Critical patent/CN110836417A/en
Priority to PCT/CN2020/111003 priority patent/WO2021098317A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • 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
    • 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
    • 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
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-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
    • F24F5/0007—Air-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
    • F24F5/001—Compression cycle type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F24F2110/12—Temperature of the outside air

Abstract

The application relates to an air conditioner and an air conditioner control method, and belongs to the technical field of air conditioners. This application air conditioner includes: refrigerant main loop, refrigerant main loop includes: compressor, vapour and liquid separator, outdoor heat exchanger and indoor heat exchanger, the air conditioner still includes: the first heating branch circuit heats the liquid refrigerant discharged by the gas-liquid separator into a gaseous refrigerant and sends the gaseous refrigerant to an air suction port of the compressor; the flow dividing and adjusting branch is used for dividing and adjusting the refrigerant flowing from the indoor heat exchanger to the outdoor heat exchanger; the second heating branch receives the refrigerant conveyed by the shunting adjusting branch, heats the refrigerant and then sends the refrigerant to the air suction port through the first heating branch; the first enthalpy-increasing branch circuit receives the refrigerant heated by the second heating branch circuit and sends the refrigerant to an enthalpy-increasing port of the compressor; and the second enthalpy-increasing branch line receives the refrigerant conveyed by the flow-dividing adjusting branch line, exchanges heat with the refrigerant in the main refrigerant loop to absorb the heat of the refrigerant in the main refrigerant loop, and then sends the heat to the enthalpy-increasing port. Through this application, help promoting the air conditioner to the indoor effect of heating.

Description

Air conditioner and air conditioner control method
Technical Field
The application belongs to the technical field of air conditioners, and particularly relates to an air conditioner and an air conditioner control method.
Background
In winter, the air conditioner is used as a heating means for heating indoors, when the air conditioner is used for heating, the heating effect of the air conditioner is attenuated under the low-temperature condition, the indoor heating effect cannot be guaranteed, and poor heating use experience can be brought to users.
Disclosure of Invention
In order to overcome the problems in the related art at least to a certain extent, the air conditioner and the air conditioner control method are provided, the indoor heating effect of the air conditioner can be improved, and the heating use experience of a user can be improved.
In order to achieve the purpose, the following technical scheme is adopted in the application:
in a first aspect,
the application provides an air conditioner, includes: a primary refrigerant circuit, the primary refrigerant circuit comprising: compressor, vapour and liquid separator, outdoor heat exchanger and indoor heat exchanger, the air conditioner still includes:
the first heating branch is used for heating the liquid refrigerant discharged by the gas-liquid separator into a gaseous refrigerant and sending the gaseous refrigerant to the air suction port of the compressor;
the flow dividing and adjusting branch is used for dividing and adjusting the refrigerant flowing from the indoor heat exchanger to the outdoor heat exchanger;
the second heating branch is used for receiving the refrigerant conveyed by the shunting adjusting branch, heating the refrigerant and then conveying the refrigerant to the air suction port through the first heating branch;
the first enthalpy-increasing branch is used for receiving the refrigerant heated by the second heating branch and sending the refrigerant to an enthalpy-increasing port of the compressor;
and the second enthalpy-increasing branch is used for receiving the refrigerant conveyed by the flow dividing adjusting branch, exchanging heat with the refrigerant in the main refrigerant loop to absorb the heat of the refrigerant in the main refrigerant loop, and then sending the heat to the enthalpy-increasing port.
Further, the air conditioner further includes: and the high-pressure bypass branch is used for directly conveying the refrigerant discharged by the compressor to the outdoor heat exchanger.
Further, the high pressure bypass branch includes:
and the high-pressure bypass valve is used for directly sending part of the refrigerant discharged by the compressor into the outdoor heat exchanger through the high-pressure bypass branch after the high-pressure bypass valve is opened.
Further, the first heating branch comprises:
the liquid inlet of the first heating mechanism is connected with the liquid outlet of the gas-liquid separator through the liquid inlet valve, the exhaust port of the first heating mechanism is connected with the air suction port of the compressor through the exhaust valve, and when the liquid inlet valve and the exhaust valve are both opened, the first heating mechanism heats the entering liquid refrigerant to form a gaseous refrigerant, and then the gaseous refrigerant is sent to the air suction port.
Further, the first heating branch further comprises:
and the gas balance valve is used for connecting the gas-liquid separator and the first heating mechanism so as to balance the pressure between the gas-liquid separator and the first heating mechanism after the gas balance valve is opened.
Further, the shunt regulation branch comprises:
and the auxiliary throttling component is used for adjusting the refrigerant in the shunting adjusting branch.
Further, the second heating branch comprises:
the second heating branch is used for receiving the refrigerant conveyed by the shunting adjusting branch when the air inlet valve is opened;
and the second heating mechanism is used for heating the refrigerant conveyed by the second heating branch.
Further, the first enthalpy increasing branch includes:
and the first enthalpy increasing valve is used for receiving the refrigerant heated by the second heating branch after the first enthalpy increasing valve is opened and sending the refrigerant to the enthalpy increasing port.
Further, the second enthalpy increasing branch includes:
the second enthalpy-increasing valve is used for receiving the refrigerant conveyed by the flow dividing adjusting branch after the first enthalpy-increasing valve is opened;
and the subcooler comprises a first channel and a second channel, wherein the first channel is connected in series in the second enthalpy-increasing branch, and the second channel is connected in series on the refrigerant main loop and is positioned at the downstream position of the shunting adjusting branch.
Further, the air conditioner further includes:
and one end of the supercooling valve is communicated with the refrigerant output end of the first channel of the subcooler, and the other end of the supercooling valve is communicated with the refrigerant input end of the gas-liquid separator.
Further, the main circuit further includes: and the four-way valve is used for switching whether the refrigerant discharged by the compressor is conveyed to the indoor heat exchanger or the outdoor heat exchanger.
In a second aspect of the present invention,
the application provides an air conditioner control method, which is characterized in that the method is applied to the air conditioner in any one of the above manners, and the method comprises the following steps:
judging which air supplement condition the heating operation of the air conditioner meets;
performing corresponding air supplement control on the air conditioner according to the judgment result;
wherein the air conditioning heating operation includes: and in the defrosting heating mode, part of the refrigerant discharged by the compressor is directly conveyed to the outdoor heat exchanger through the high-pressure bypass branch for defrosting the outdoor heat exchanger.
Further, what air supplement condition is satisfied when judging the air conditioner heating operation includes:
after the normal heating mode is started, if the suction superheat degree of the compressor is judged to be less than or equal to the target suction superheat degree, or when the defrosting heating mode is started, the suction air supplement condition of the compressor is judged to be met; alternatively, the first and second electrodes may be,
and when the outdoor environment temperature is judged to be less than or equal to the preset threshold temperature and the unit load is judged to be greater than or equal to the preset threshold load, judging that the enthalpy-increasing air-supplementing condition of the compressor is met.
Further, according to the judgment result, the air conditioner is correspondingly controlled to supplement air, and the method comprises the following steps:
and if the condition of air suction and air supplement of the compressor is met, controlling the first heating branch, the flow dividing adjusting branch and the second heating branch to conduct and operate so as to send the liquid refrigerant of the gas-liquid separator and the refrigerant conveyed by the second heating branch to the first heating branch, heating the liquid refrigerant by the first heating branch and then sending the heated liquid refrigerant to the air suction port of the compressor.
Further, according to the judgment result, the air conditioner is correspondingly controlled to supplement air, and the method comprises the following steps:
if the enthalpy-increasing and air-supplementing condition of the compressor is met, the first enthalpy-increasing branch and the second enthalpy-increasing branch are controlled to conduct and operate, the refrigerant heated by the second heating branch is conveyed to the enthalpy-increasing port of the compressor through the first enthalpy-increasing branch, and the refrigerant absorbing the heat of the refrigerant of the main refrigerant loop is conveyed to the enthalpy-increasing port of the compressor through the second enthalpy-increasing branch.
In a third aspect,
the application provides an air conditioner, includes:
a memory having an executable program stored thereon;
a processor for executing the executable program in the memory to implement the steps of any of the above methods.
This application adopts above technical scheme, possesses following beneficial effect at least:
through this application, utilize first heating branch road to heat into gaseous state refrigerant with vapour and liquid separator exhaust liquid refrigerant, then send to the induction port of compressor, solve the hydrops and lead to the problem of heating the effect variation, and utilize first heating branch road can also send the refrigerant of heating through the second heating branch road to the induction port, and simultaneously, the refrigerant of heating through the second heating branch road can also send into the enthalpy-increasing mouth of compressor, and the refrigerant that the second enthalpy-increasing branch road carried can absorb heat from the refrigerant major loop, then input to the enthalpy-increasing mouth of compressor. The air is supplied to the air suction port and the enthalpy increasing port of the compressor in multiple aspects, so that the indoor heating effect of the air conditioner is improved, and the heating use experience of a user is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present application;
fig. 2 is a schematic flowchart of an air conditioner control method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an air conditioner according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present application, and as shown in fig. 1, the air conditioner includes:
a primary refrigerant circuit, the primary refrigerant circuit comprising: a compressor 101, a gas-liquid separator 102, an outdoor heat exchanger 103, and an indoor heat exchanger 104, and the air conditioner further includes:
a first heating branch (indicated by reference numeral 11 in fig. 1 along with a mark line) for heating the liquid refrigerant discharged from the gas-liquid separator 102 into a gaseous refrigerant, and sending the gaseous refrigerant to a suction port of the compressor 101;
a branch flow adjusting branch (indicated by reference numeral 12 in fig. 1 in cooperation with a mark line) for performing a branch flow adjustment on the refrigerant flowing from the indoor heat exchanger 104 to the outdoor heat exchanger 103;
the second heating branch (shown by a mark 13 in fig. 1 in cooperation with a mark line) is used for receiving the refrigerant conveyed by the diversion adjusting branch, heating the refrigerant, and then sending the refrigerant to the air suction port through the first heating branch;
a first enthalpy-increasing branch (shown by reference numeral 14 in fig. 1 in cooperation with a mark line) for receiving the refrigerant heated by the second heating branch and sending the refrigerant to an enthalpy-increasing port of the compressor 101;
and a second enthalpy-increasing branch (shown by a reference number 15 in fig. 1 in cooperation with a mark line) for receiving the refrigerant conveyed by the split-flow adjusting branch, performing heat exchange with the refrigerant in the main refrigerant circuit to absorb heat of the refrigerant in the main refrigerant circuit, and then sending the heat to the enthalpy-increasing port.
Specifically, the main refrigerant circuit is the most basic circuit of the air conditioner that performs a heating/cooling function, and includes a compressor 101, a gas-liquid separator 102, an outdoor heat exchanger 103, an indoor heat exchanger 104, and the like. In fig. 1, the marks drawn by different lines only show the effect as a distinction of the branches.
When the air conditioner heats in winter, the gas-liquid separator 102 in the outdoor unit is prone to liquid accumulation, liquid refrigerant discharged from the gas-liquid separator 102 is heated into gaseous refrigerant through the first heating branch, the gaseous refrigerant is supplemented to the air suction port of the compressor 101, the air suction port of the compressor 101 is supplemented with air, the refrigerant in the system is made to circulate fully, the heating capacity of the unit is guaranteed, meanwhile, the refrigerant flowing out of the indoor heat exchanger 104 is divided through the dividing adjusting branch, one part of the divided refrigerant can be conveyed to the second heating branch, the refrigerant is heated through the second heating branch, then the refrigerant is conveyed to the first heating branch through the second heating branch, reheating is performed through the first heating branch, the air supplement to the air suction port of the compressor 101 is further enhanced, and the heating effect is improved. Meanwhile, the second heating branch can also convey the refrigerant heated by the second heating branch to the enthalpy-increasing port of the compressor 101 through the first enthalpy-increasing branch to supplement air and increase enthalpy, so that the heating effect is enhanced, in addition, a part of the refrigerant conveyed by the shunting adjusting branch can enter the second enthalpy-increasing branch to exchange heat with the refrigerant in the main refrigerant loop, so that the heat of the refrigerant in the main refrigerant loop is absorbed, and then the refrigerant is conveyed to the enthalpy-increasing port of the compressor 101 to supplement air and increase enthalpy, so that the heating effect is enhanced. The air is supplied to the air suction port and the enthalpy increasing port of the compressor 101 in multiple aspects, so that the indoor heating effect of the air conditioner is improved, and the heating use experience of a user is improved.
In one embodiment, the air conditioner further includes: a high-pressure bypass branch (indicated by reference numeral 16 in fig. 1 along with a reference line) for directly delivering the refrigerant discharged from the compressor 101 to the outdoor heat exchanger 103.
Further, the high pressure bypass branch includes:
and the high-pressure bypass valve 105 is configured to, after the high-pressure bypass valve 105 is opened, directly send a part of the refrigerant discharged by the compressor 101 to the outdoor heat exchanger 103 through the high-pressure bypass branch. In a specific application, the high pressure bypass valve 105 may be a solenoid valve.
Specifically, the air conditioner can be realized to have the defrosting heating mode and the normal heating mode through the high-pressure bypass branch, and the defrosting heating mode is that the air conditioner continues to heat the room when changing the frost, specifically: when the defrosting and heating mode of the air conditioner is started, the high-pressure bypass branch is conducted, part of high-temperature refrigerant discharged by the compressor 101 enters the indoor heat exchanger 104, so that the air conditioner can continuously heat the indoor space, and the other part of high-temperature refrigerant directly enters the outdoor heat exchanger 103 through the conducted high-pressure bypass branch to defrost the outdoor heat exchanger 103. In the normal heating mode, all of the refrigerant discharged from the compressor 101 flows to the indoor heat exchanger 104, and the interior of the room is heated.
In one embodiment, the first heating branch comprises:
the liquid refrigerant heating device comprises a first heating mechanism 106, a liquid inlet valve 107 and an exhaust valve 108, wherein a liquid inlet of the first heating mechanism 106 is connected with a liquid outlet of the gas-liquid separator 102 through the liquid inlet valve 107, an exhaust port of the first heating mechanism 106 is connected with a suction port of the compressor 101 through the exhaust valve 108, and when the liquid inlet valve 107 and the exhaust valve 108 are both opened, the first heating mechanism 106 heats an entering liquid refrigerant to form a gaseous refrigerant, and then the gaseous refrigerant is sent to the suction port.
Specifically, the first heating mechanism 106 has a space for accommodating the liquid refrigerant, and a heating device, such as an electric heating device, for heating the liquid refrigerant collected by the first heating mechanism 106 into a gaseous refrigerant when the electric heating device of the first heating mechanism 106 is operated.
The liquid inlet valve 107 and the gas outlet valve 108 may both adopt electromagnetic valves, and when the first heating branch is conducted, the liquid inlet valve 107 and the gas outlet valve 108 need to be opened simultaneously, so that the first heating branch is conducted, and further, the gas refrigerant in the first heating branch is conveyed to the gas suction port of the compressor 101.
Further, the first heating branch further comprises:
a gas balance valve 109 for connecting the gas-liquid separator 102 and the first heating mechanism 106, so as to balance the pressure between the gas-liquid separator 102 and the first heating mechanism 106 after the gas balance valve 109 is opened.
Specifically, the gas balance valve 109 may be an electromagnetic valve, and the pressure between the gas-liquid separator 102 and the first heating mechanism 106 is balanced by opening the gas balance valve 109, so that the pressure of the refrigerant delivered to the suction port of the compressor 101 by the gas-liquid separator 102 is balanced with the pressure of the refrigerant delivered to the suction port of the compressor 101 by the first heating mechanism 106.
In one embodiment, the shunt regulation branch comprises:
and the auxiliary throttling part 110 is used for adjusting the refrigerant in the flow dividing adjusting branch.
Specifically, the auxiliary throttling component 110 may adopt an electronic expansion valve, and the refrigerant branched by the branch flow adjusting branch is adjusted by the auxiliary throttling component 110 to be provided for the second heating branch and/or the second enthalpy-increasing branch.
In one embodiment, the second heating branch comprises:
the air inlet valve 111 is used for receiving the refrigerant conveyed by the split-flow adjusting branch by the second heating branch when the air inlet valve 111 is opened;
the second heating mechanism 112 is configured to heat the refrigerant conveyed by the second heating branch.
Specifically, the intake valve 111 can adopt an electromagnetic valve, after the intake valve 111 is opened, the second heating branch is conducted to receive the refrigerant conveyed by the shunting adjusting branch, the refrigerant conveyed by the second heating branch is heated by the second heating mechanism 112, the heated refrigerant is conveyed to the air suction port of the compressor 101 through the first heating branch, the air is supplied to the air suction port of the compressor 101, the heating effect is improved, or the second heating branch conveys the heated refrigerant to the enthalpy increasing port of the compressor 101 through the first enthalpy increasing branch, the enthalpy of the compressor 101 is increased, and the heating effect is improved.
In a specific application, the second heating mechanism 112 may be an electric heating device disposed on the outer wall of the second heating branch pipe.
In one embodiment, the first enthalpy increasing branch includes:
and the first enthalpy increasing valve 113 is used for receiving the refrigerant heated by the second heating branch after the first enthalpy increasing valve 113 is opened, and sending the refrigerant to the enthalpy increasing port.
Specifically, the first enthalpy-increasing valve 113 may adopt an electromagnetic valve, and after the first enthalpy-increasing valve 113 is opened, the first enthalpy-increasing branch is communicated to receive the refrigerant conveyed by the second heating branch, and then the refrigerant is conveyed to the enthalpy-increasing port of the compressor 101, so that the enthalpy of the compressor 101 is increased and the heating effect is improved.
In one embodiment, the second enthalpy increasing branch includes:
the second enthalpy increasing valve 114 is configured to receive the refrigerant conveyed by the split flow adjusting branch when the first enthalpy increasing valve 113 is opened;
the subcooler 115 comprises a first channel and a second channel, wherein the first channel is connected in series in the second enthalpy-increasing branch, and the second channel is connected in series on the refrigerant main circuit and is located at a downstream position of a branch of the flow dividing adjusting branch.
Specifically, the second enthalpy-increasing valve 114 may be an electromagnetic valve, after the second enthalpy-increasing valve 114 is opened, the second enthalpy-increasing branch is turned on to receive the refrigerant conveyed by the split-flow adjusting branch, the refrigerant received by the second enthalpy-increasing branch is adjusted by the split-flow adjusting branch, and the refrigerant passes through the subcooler 115 and can exchange heat with the refrigerant in the main refrigerant loop to absorb heat of the refrigerant in the main refrigerant loop, and then is conveyed to the enthalpy-increasing port of the compressor 101, so that the enthalpy-increasing of the compressor 101 improves the heating effect.
In the above embodiments, the downstream position of the branch of the flow dividing regulation branch refers to the refrigerant flow direction flowing from the indoor heat exchanger 104 to the outdoor heat exchanger 103, and fig. 1 shows that the first channel of the subcooler 115 is disposed on the refrigerant main loop between the branch of the flow dividing regulation branch and the main throttling component 116.
In one embodiment, the air conditioner further includes:
one end of the supercooling valve 117 is communicated with the refrigerant output end of the first passage of the subcooler 115, and the other end thereof is communicated with the refrigerant input end of the gas-liquid separator 102.
Specifically, the supercooling valve 117 may be an electromagnetic valve, and the refrigerant passing through the first channel may be controlled by switching on and off of the supercooling valve 117, for example, when the supercooling valve 117 is closed, all the refrigerant passing through the first channel is input to the enthalpy increasing port of the compressor 101; when the subcooling valve 117 is opened, a part of the refrigerant passing through the first passage is input to the enthalpy increasing port of the compressor 101, and the other part of the refrigerant is transmitted to the refrigerant inlet of the gas-liquid separator 102 and enters the suction port of the compressor 101 through the gas-liquid separator 102, so that the air supplementing effect of the suction port of the compressor 101 can be further improved, and the refrigeration effect of the compressor 101 under the low temperature condition is further improved.
In one embodiment, the primary loop further comprises: a four-way valve 118 for switching whether the refrigerant discharged from the compressor 101 is delivered to the indoor heat exchanger 104 or the outdoor heat exchanger 103.
Specifically, the air conditioner can switch whether the refrigerant discharged from the compressor 101 is delivered to the indoor heat exchanger 104 or the outdoor heat exchanger 103 by switching the four-way valve 118, so that when the refrigerant discharged from the compressor 101 is switched to the indoor heat exchanger 104, heating of the indoor space is achieved, and when the refrigerant discharged from the compressor 101 is switched to the outdoor heat exchanger 103, cooling of the indoor space is achieved. For the switching of cooling and heating, reference may be made to the air conditioning contents in the related art.
As shown in fig. 1, because a high-pressure bypass branch is added in the air conditioner, when the air conditioner is defrosting, the four-way valve 118 does not need to be switched, only the high-pressure bypass branch needs to be conducted, so that a part of the high-temperature refrigerant discharged by the compressor 101 enters the indoor heat exchanger 104, so that the air conditioner continues to heat the indoor space, and the other part of the high-temperature refrigerant directly enters the outdoor heat exchanger 103 through the conducted high-pressure bypass branch to defrost the outdoor heat exchanger 103, so that the indoor heating is not stopped when defrosting is realized, and the continuity of the indoor heating is realized.
Fig. 2 is a schematic flowchart of an air conditioner control method according to an embodiment of the present application, where the control method is applied to an air conditioner as described in any one of the above embodiments, and as shown in fig. 2, the air conditioner control method includes the following steps:
step S201, judging what air supplement condition the air conditioner heating operation meets, wherein the air conditioner heating operation comprises: a normal heating mode and a defrosting heating mode, in which all the refrigerant discharged from the compressor 101 flows to the indoor heat exchanger 104, and in the defrosting heating mode, part of the refrigerant discharged from the compressor 101 is directly conveyed to the outdoor heat exchanger 103 through the high-pressure bypass branch for defrosting the outdoor heat exchanger 103;
specifically, in the air conditioner shown in fig. 1, because the air conditioner has the high-pressure bypass branch, the defrosting and heating mode operation can be realized, that is, when the air conditioner defrosts, the four-way valve 118 does not switch, the high-pressure bypass branch is conducted, so that a part of the high-temperature refrigerant discharged by the compressor 101 enters the indoor heat exchanger 104, so that the air conditioner continues to heat the indoor space, and the other part of the high-temperature refrigerant directly enters the outdoor heat exchanger 103 through the conducted high-pressure bypass branch to defrost the outdoor heat exchanger 103, so that the indoor heating is not stopped when the defrosting is realized, and the continuity of the indoor heating is realized.
For the normal heating mode, the normal heating mode is the same whether the air conditioner has the defrosting heating mode function or the air conditioner does not have the defrosting heating mode function.
In one embodiment, the determining what air supply condition is satisfied when the air conditioner is in heating operation includes:
after the normal heating mode is started, if the suction superheat degree of the compressor 101 is judged to be less than or equal to the target suction superheat degree, or when the defrosting heating mode is started, the suction air supplement condition of the compressor 101 is judged to be met.
Specifically, in the normal heating mode operation, the air conditioner with the defrosting heating mode function or the air conditioner without the defrosting heating mode function is the same, and in the normal heating operation process, when the suction superheat degree of the compressor 101 is judged to be less than or equal to the target suction superheat degree, the poor heating effect of the air conditioner can be represented, the air supply port of the compressor 101 needs to be supplied with air, and the suction air supply condition of the compressor 101 is also met. When the air conditioner with the defrosting and heating mode function is in the defrosting and heating mode, as shown in fig. 1, the high-pressure bypass branch is conducted to bypass a part of the refrigerant, so that the amount of the refrigerant entering the indoor heat exchanger 104 is reduced, and the heating effect of the indoor heat exchanger 104 is reduced.
Or, when the outdoor environment temperature is determined to be less than or equal to the preset threshold temperature and the unit load is determined to be greater than or equal to the preset threshold load, it is determined that the enthalpy-increasing and air-supplying conditions of the compressor 101 are satisfied.
Specifically, when it is determined that the outdoor environment temperature is less than or equal to the preset threshold temperature and the unit load is greater than or equal to the preset threshold load, it indicates that enthalpy needs to be further added to the compressor 101, so as to improve the heating effect.
And S202, performing corresponding air supplement control on the air conditioner according to the judgment result.
In one embodiment, performing corresponding air make-up control on the air conditioner according to the determination result includes:
if the condition of air suction and air supplement of the compressor 101 is met, the first heating branch, the flow dividing adjusting branch and the second heating branch are controlled to be conducted and operated, so that the liquid refrigerant of the gas-liquid separator 102 and the refrigerant conveyed by the second heating branch are conveyed to the first heating branch, heated by the first heating branch and then conveyed to the air suction port of the compressor 101.
Specifically, two ways of supplying air to the air suction port of the compressor 101 are performed simultaneously in the above embodiment, one way is to heat the liquid refrigerant discharged from the gas-liquid separator 102 into a gaseous refrigerant by using the first heating branch, and then to supply the gaseous refrigerant to the air suction port of the compressor 101, so as to solve the problem of poor heating effect caused by accumulated liquid, the other way is to adjust the split flow of the split flow adjusting branch, and the second heating branch receives and heats the refrigerant conveyed by the split flow adjusting branch, and then to convey the air suction port of the compressor 101 by using the first heating branch.
In a specific application, as shown in fig. 1, the first heating mechanism 106 and the second heating mechanism 112 may be controlled to operate, so that the gas balance valve 109 and the liquid inlet valve 107 are opened for a certain period of time, and the liquid refrigerant in the gas-liquid separator 102 enters the first heating mechanism 106 to be heated into a gaseous refrigerant; then, the gas valve 111 and the gas discharge valve 108 are opened, the first enthalpy increasing valve 113 and the second enthalpy increasing valve 114 are kept closed, and the refrigerant heated by the first heating mechanism 106 and the second heating mechanism 112 is returned to the compressor 101.
Further, according to the judgment result, the air conditioner is correspondingly controlled to supplement air, and the method comprises the following steps:
if the enthalpy-increasing and air-replenishing condition of the compressor 101 is met, the first enthalpy-increasing branch and the second enthalpy-increasing branch are controlled to be conducted and operated, the refrigerant heated by the second heating branch is conveyed to the enthalpy-increasing port of the compressor 101 through the first enthalpy-increasing branch, and the refrigerant absorbing the heat of the refrigerant of the main refrigerant loop is conveyed to the enthalpy-increasing port of the compressor 101 through the second enthalpy-increasing branch.
Specifically, after judging that the enthalpy-increasing air-supplying condition of the compressor 101 is satisfied, the above embodiment simultaneously performs two ways of supplying air to the enthalpy-increasing port of the compressor 101, as shown in fig. 1, one way is to use the first enthalpy-increasing branch to convey the refrigerant heated by the second heating branch to the enthalpy-increasing port of the compression molding machine, and the other way is to use the second enthalpy-increasing branch to receive the refrigerant adjusted by the shunting adjusting branch, and when passing through the subcooler 115, the refrigerant exchanges heat with the refrigerant in the main refrigerant loop to absorb the heat of the main refrigerant loop, and then the refrigerant is conveyed to the enthalpy-increasing port of the compressor 101, so that the enthalpy-increasing of the compressor 101 improves the heating effect.
For the first heating branch, the split-flow regulating branch and the second heating branch shown in fig. 1, the three branches are normally closed, including the closing of the valve and the closing of the heating.
Fig. 3 is a schematic structural diagram of an air conditioner according to another embodiment of the present application, and as shown in fig. 3, the air conditioner 3 includes:
a memory 301 having an executable program stored thereon;
a processor 302 for executing the executable program in the memory 301 to implement the steps of any of the above methods.
With regard to the air conditioner in the above-described embodiment, the specific manner in which the processor 302 executes the program in the memory 301 has been described in detail in the embodiment related to the method, and will not be described in detail here.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, the meaning of "plurality" means at least two unless otherwise specified.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. Further, "connected" as used herein may include wirelessly connected. The term "and/or" is used to include any and all combinations of one or more of the associated listed items.
Any process or method descriptions in flow charts or otherwise described herein may be understood as: represents modules, segments or portions of code which include one or more executable instructions for implementing specific logical functions or steps of a process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means 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 application. 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.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (16)

1. An air conditioner, comprising: a primary refrigerant circuit, the primary refrigerant circuit comprising: compressor, vapour and liquid separator, outdoor heat exchanger and indoor heat exchanger, its characterized in that, the air conditioner still includes:
the first heating branch is used for heating the liquid refrigerant discharged by the gas-liquid separator into a gaseous refrigerant and sending the gaseous refrigerant to the air suction port of the compressor;
the flow dividing and adjusting branch is used for dividing and adjusting the refrigerant flowing from the indoor heat exchanger to the outdoor heat exchanger;
the second heating branch is used for receiving the refrigerant conveyed by the shunting adjusting branch, heating the refrigerant and then conveying the refrigerant to the air suction port through the first heating branch;
the first enthalpy-increasing branch is used for receiving the refrigerant heated by the second heating branch and sending the refrigerant to an enthalpy-increasing port of the compressor;
and the second enthalpy-increasing branch is used for receiving the refrigerant conveyed by the flow dividing adjusting branch, exchanging heat with the refrigerant in the main refrigerant loop to absorb the heat of the refrigerant in the main refrigerant loop, and then sending the heat to the enthalpy-increasing port.
2. The air conditioner according to claim 1, further comprising: and the high-pressure bypass branch is used for directly conveying the refrigerant discharged by the compressor to the outdoor heat exchanger.
3. The air conditioner according to claim 2, wherein the high pressure bypass branch includes:
and the high-pressure bypass valve is used for directly sending part of the refrigerant discharged by the compressor into the outdoor heat exchanger through the high-pressure bypass branch after the high-pressure bypass valve is opened.
4. The air conditioner according to claim 1, wherein the first heating branch includes:
the liquid inlet of the first heating mechanism is connected with the liquid outlet of the gas-liquid separator through the liquid inlet valve, the exhaust port of the first heating mechanism is connected with the air suction port of the compressor through the exhaust valve, and when the liquid inlet valve and the exhaust valve are both opened, the first heating mechanism heats the entering liquid refrigerant to form a gaseous refrigerant, and then the gaseous refrigerant is sent to the air suction port.
5. The air conditioner according to claim 4, wherein the first heating branch further comprises:
and the gas balance valve is used for connecting the gas-liquid separator and the first heating mechanism so as to balance the pressure between the gas-liquid separator and the first heating mechanism after the gas balance valve is opened.
6. The air conditioner according to claim 1, wherein the branch flow adjusting branch comprises:
and the auxiliary throttling component is used for adjusting the refrigerant in the shunting adjusting branch.
7. The air conditioner according to claim 1, wherein the second heating branch includes:
the second heating branch is used for receiving the refrigerant conveyed by the shunting adjusting branch when the air inlet valve is opened;
and the second heating mechanism is used for heating the refrigerant conveyed by the second heating branch.
8. The air conditioner according to claim 1, wherein the first enthalpy increasing branch path includes:
and the first enthalpy increasing valve is used for receiving the refrigerant heated by the second heating branch after the first enthalpy increasing valve is opened and sending the refrigerant to the enthalpy increasing port.
9. The air conditioner according to claim 1, wherein the second enthalpy increasing branch path includes:
the second enthalpy-increasing valve is used for receiving the refrigerant conveyed by the flow dividing adjusting branch after the first enthalpy-increasing valve is opened;
and the subcooler comprises a first channel and a second channel, wherein the first channel is connected in series in the second enthalpy-increasing branch, and the second channel is connected in series on the refrigerant main loop and is positioned at the downstream position of the shunting adjusting branch.
10. The air conditioner according to claim 9, further comprising:
and one end of the supercooling valve is communicated with the refrigerant output end of the first channel of the subcooler, and the other end of the supercooling valve is communicated with the refrigerant input end of the gas-liquid separator.
11. The air conditioner according to any one of claims 1 to 10, wherein the main circuit further comprises: and the four-way valve is used for switching whether the refrigerant discharged by the compressor is conveyed to the indoor heat exchanger or the outdoor heat exchanger.
12. An air conditioner control method applied to the air conditioner according to any one of claims 1 to 11, the method comprising:
judging which air supplement condition the heating operation of the air conditioner meets;
performing corresponding air supplement control on the air conditioner according to the judgment result;
wherein the air conditioning heating operation includes: and in the defrosting heating mode, part of the refrigerant discharged by the compressor is directly conveyed to the outdoor heat exchanger and is used for defrosting the outdoor heat exchanger.
13. The method of claim 12, wherein the determining what air supply condition is satisfied when the air conditioner is operated for heating comprises:
after the normal heating mode is started, if the suction superheat degree of the compressor is judged to be less than or equal to the target suction superheat degree, or when the defrosting heating mode is started, the suction air supplement condition of the compressor is judged to be met; alternatively, the first and second electrodes may be,
and when the outdoor environment temperature is judged to be less than or equal to the preset threshold temperature and the unit load is judged to be greater than or equal to the preset threshold load, judging that the enthalpy-increasing air-supplementing condition of the compressor is met.
14. The method as claimed in claim 12 or 13, wherein performing the corresponding air compensation control on the air conditioner according to the determination result comprises:
and if the condition of air suction and air supplement of the compressor is met, controlling the first heating branch, the flow dividing adjusting branch and the second heating branch to conduct and operate so as to send the liquid refrigerant of the gas-liquid separator and the refrigerant conveyed by the second heating branch to the first heating branch, heating the liquid refrigerant by the first heating branch and then sending the heated liquid refrigerant to the air suction port of the compressor.
15. The method of claim 14, wherein performing the corresponding air compensation control on the air conditioner according to the determination result comprises:
if the enthalpy-increasing and air-supplementing condition of the compressor is met, the first enthalpy-increasing branch and the second enthalpy-increasing branch are controlled to conduct and operate, the refrigerant heated by the second heating branch is conveyed to the enthalpy-increasing port of the compressor through the first enthalpy-increasing branch, and the refrigerant absorbing the heat of the refrigerant of the main refrigerant loop is conveyed to the enthalpy-increasing port of the compressor through the second enthalpy-increasing branch.
16. An air conditioner, comprising:
a memory having an executable program stored thereon;
a processor for executing the executable program in the memory to implement the steps of the method of any of claims 12-15.
CN201911125947.4A 2019-11-18 2019-11-18 Air conditioner and air conditioner control method Pending CN110836417A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111197877A (en) * 2020-02-26 2020-05-26 珠海格力电器股份有限公司 Pressure regulator, outdoor unit, air conditioning system and control method of air conditioning system
CN111412709A (en) * 2020-03-02 2020-07-14 珠海格力电器股份有限公司 Air conditioner
CN112629082A (en) * 2021-01-08 2021-04-09 珠海格力电器股份有限公司 Heating control system, multi-split air conditioning system and heating control method
WO2021098317A1 (en) * 2019-11-18 2021-05-27 珠海格力电器股份有限公司 Air conditioner and air conditioner control method
WO2021169541A1 (en) * 2019-10-23 2021-09-02 珠海格力电器股份有限公司 Air conditioning system and control method therefor
CN113757936A (en) * 2021-09-13 2021-12-07 海信（山东）空调有限公司 Air conditioner control system, air conditioner and control method of air conditioner
CN115127265A (en) * 2022-07-13 2022-09-30 珠海格力电器股份有限公司 Vapor-liquid separator, air conditioner and refrigerant supplement control method
WO2022222587A1 (en) * 2021-04-20 2022-10-27 芜湖美智空调设备有限公司 Air supply control method for air conditioner, air conditioner, storage medium, and compressor for air conditioner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116263279A (en) * 2021-12-13 2023-06-16 中国石油天然气股份有限公司 Air source heat pump device and method for heating produced liquid in oil production well site

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1800747A (en) * 2005-11-25 2006-07-12 珠海格力电器股份有限公司 Low-temperature air conditioner heat pump system and method for decreasing temperature regulation fluctuation by employing the same
CN105091405A (en) * 2015-07-22 2015-11-25 珠海格力电器股份有限公司 Air conditioning unit and method for increasing intake capacity of air conditioning unit
CN105509364A (en) * 2016-02-02 2016-04-20 珠海格力电器股份有限公司 Air conditioning system and jet superheating temperature regulation method
WO2019000868A1 (en) * 2017-06-30 2019-01-03 广东美的制冷设备有限公司 Air conditioning system and control method for air conditioning system
CN109442788A (en) * 2018-10-08 2019-03-08 珠海格力电器股份有限公司 The defrosting method and air-conditioning of air-conditioning
CN110173941A (en) * 2019-06-21 2019-08-27 珠海格力电器股份有限公司 Air-conditioning system
CN211551798U (en) * 2019-11-18 2020-09-22 珠海格力电器股份有限公司 Air conditioner

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001033117A (en) * 1999-05-19 2001-02-09 Daikin Ind Ltd Refrigerating device
JP4751851B2 (en) * 2007-04-27 2011-08-17 日立アプライアンス株式会社 Refrigeration cycle
CN102620463B (en) * 2012-03-27 2014-03-26 美的集团股份有限公司 Novel low-temperature strong-heating multi-split system
CN203163329U (en) * 2013-03-11 2013-08-28 广东美的制冷设备有限公司 Air conditioner
CN104896785B (en) * 2015-05-15 2017-06-09 广东美的暖通设备有限公司 A kind of air injection enthalpy-increasing multi-online air-conditioning system and its control method
CN105371548B (en) * 2015-12-11 2017-11-21 珠海格力电器股份有限公司 Gas-supplying enthalpy-increasing control method, equipment and the device of double-stage compressor
CN105485767A (en) * 2015-12-22 2016-04-13 珠海格力电器股份有限公司 Multi-split air-conditioning system and control method
CN109405317A (en) * 2018-09-25 2019-03-01 青岛海尔空调电子有限公司 Gas-supplying enthalpy-increasing pipe-line system for air conditioner
CN109798701B (en) * 2019-03-21 2023-09-12 珠海格力电器股份有限公司 Air conditioner control system and method for continuous heating and air conditioner
CN110645745A (en) * 2019-10-23 2020-01-03 珠海格力电器股份有限公司 Air conditioner capable of continuously heating and control method thereof
CN210801718U (en) * 2019-10-23 2020-06-19 珠海格力电器股份有限公司 Air conditioner capable of continuously heating
CN110836417A (en) * 2019-11-18 2020-02-25 珠海格力电器股份有限公司 Air conditioner and air conditioner control method
CN110966797B (en) * 2019-12-10 2021-01-15 珠海格力电器股份有限公司 Vehicle heat pump air conditioning system and control method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1800747A (en) * 2005-11-25 2006-07-12 珠海格力电器股份有限公司 Low-temperature air conditioner heat pump system and method for decreasing temperature regulation fluctuation by employing the same
CN105091405A (en) * 2015-07-22 2015-11-25 珠海格力电器股份有限公司 Air conditioning unit and method for increasing intake capacity of air conditioning unit
CN105509364A (en) * 2016-02-02 2016-04-20 珠海格力电器股份有限公司 Air conditioning system and jet superheating temperature regulation method
WO2019000868A1 (en) * 2017-06-30 2019-01-03 广东美的制冷设备有限公司 Air conditioning system and control method for air conditioning system
CN109442788A (en) * 2018-10-08 2019-03-08 珠海格力电器股份有限公司 The defrosting method and air-conditioning of air-conditioning
CN110173941A (en) * 2019-06-21 2019-08-27 珠海格力电器股份有限公司 Air-conditioning system
CN211551798U (en) * 2019-11-18 2020-09-22 珠海格力电器股份有限公司 Air conditioner

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021169541A1 (en) * 2019-10-23 2021-09-02 珠海格力电器股份有限公司 Air conditioning system and control method therefor
WO2021098317A1 (en) * 2019-11-18 2021-05-27 珠海格力电器股份有限公司 Air conditioner and air conditioner control method
CN111197877A (en) * 2020-02-26 2020-05-26 珠海格力电器股份有限公司 Pressure regulator, outdoor unit, air conditioning system and control method of air conditioning system
CN111197877B (en) * 2020-02-26 2023-12-19 珠海格力电器股份有限公司 Pressure regulator, outdoor unit, air conditioning system and control method of air conditioning system
CN111412709A (en) * 2020-03-02 2020-07-14 珠海格力电器股份有限公司 Air conditioner
CN112629082A (en) * 2021-01-08 2021-04-09 珠海格力电器股份有限公司 Heating control system, multi-split air conditioning system and heating control method
WO2022222587A1 (en) * 2021-04-20 2022-10-27 芜湖美智空调设备有限公司 Air supply control method for air conditioner, air conditioner, storage medium, and compressor for air conditioner
CN113757936A (en) * 2021-09-13 2021-12-07 海信（山东）空调有限公司 Air conditioner control system, air conditioner and control method of air conditioner
CN115127265A (en) * 2022-07-13 2022-09-30 珠海格力电器股份有限公司 Vapor-liquid separator, air conditioner and refrigerant supplement control method

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