CN114151940A - Air conditioner, control method and device thereof and readable storage medium - Google Patents

Air conditioner, control method and device thereof and readable storage medium Download PDF

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Publication number
CN114151940A
CN114151940A CN202010937227.4A CN202010937227A CN114151940A CN 114151940 A CN114151940 A CN 114151940A CN 202010937227 A CN202010937227 A CN 202010937227A CN 114151940 A CN114151940 A CN 114151940A
Authority
CN
China
Prior art keywords
port
refrigerant
heat exchange
air conditioner
valve
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
CN202010937227.4A
Other languages
Chinese (zh)
Inventor
田俊
易万权
魏留柱
乔德山
宫笋
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.)
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
GD Midea Air Conditioning Equipment Co Ltd
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Filing date
Publication date
Application filed by GD Midea Air Conditioning Equipment Co Ltd filed Critical GD Midea Air Conditioning Equipment Co Ltd
Priority to CN202010937227.4A priority Critical patent/CN114151940A/en
Publication of CN114151940A publication Critical patent/CN114151940A/en
Pending legal-status Critical Current

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    • 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
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0011Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0059Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • 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
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control 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
    • F24F11/84Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02Ducting arrangements
    • F24F13/06Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • 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
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/25Control of valves

Abstract

The invention discloses an air conditioner, wherein two air channels which are mutually isolated are formed in a shell of the air conditioner, each air channel is internally provided with a heat exchange module, each heat exchange module comprises two heat exchangers, one heat exchanger in each heat exchange module is connected with a throttling device, the other heat exchanger in each heat exchange module is respectively connected with an exhaust port and a return air port of a compressor, the four heat exchangers are all connected with a refrigerant flow direction switching module, the refrigerant flow direction switching module can switch the flow direction of refrigerants in a first heat exchange module and a second heat exchange module, and the switching of the refrigerant flow direction can enable the heat exchange states of the two heat exchangers in the same air channel to be switched between the same state and the different state. The invention also discloses a control method of the air conditioner, a control device of the air conditioner and a readable storage medium. The invention aims to realize that the air conditioner has the functions of temperature regulation and constant temperature dehumidification at the same time so as to meet different air conditioning requirements of users.

Description

Air conditioner, control method and device thereof and readable storage medium
Technical Field
The present invention relates to the field of air conditioners, and in particular, to an air conditioner, a control method of the air conditioner, a control device of the air conditioner, and a readable storage medium.
Background
With the development of science and technology, the living standard of people is improved, and the demand of people on air conditioner adjustment is also continuously improved. The conventional air conditioner exchanges heat with air in the environment where the air conditioner is located through a heat exchanger so as to improve or reduce the temperature of the air in the environment where the air conditioner is located, but the air conditioner has a single function, can only adjust the temperature and cannot realize a constant-temperature dehumidification function on the air, a user can only realize constant-temperature dehumidification through a professional dehumidifier additionally configured when needing to realize the constant-temperature dehumidification, and the air conditioning requirement of the user cannot be met if the user does not configure the dehumidifier.
Disclosure of Invention
The invention mainly aims to provide an air conditioner, which has the functions of temperature regulation and constant temperature dehumidification at the same time so as to meet different air conditioning requirements of users.
To achieve the above object, the present invention provides an air conditioner including:
the air conditioner comprises a shell, a first air duct and a second air duct, wherein the first air duct and the second air duct are isolated from each other;
the first heat exchange module is arranged in the first air duct and comprises a first heat exchanger and a second heat exchanger, the first heat exchanger is provided with a first refrigerant port and a second refrigerant port, and the second heat exchanger is provided with a third refrigerant port and a fourth refrigerant port;
the second heat exchange module is arranged in the second air duct and comprises a third heat exchanger and a fourth heat exchanger, the third heat exchanger is provided with a fifth refrigerant port and a sixth refrigerant port, and the fourth heat exchanger is provided with a seventh refrigerant port and an eighth refrigerant port;
one end of the throttling device is connected with the first refrigerant port, and the other end of the throttling device is connected with the fifth refrigerant port;
the compressor is provided with an exhaust port and a return port, the exhaust port is connected with the third refrigerant port, and the return port is connected with the seventh refrigerant port;
the second refrigerant port, the fourth refrigerant port, the sixth refrigerant port and the eighth refrigerant port are all connected with the refrigerant flow direction switching module, and the refrigerant flow direction switching module is used for switching the refrigerant flow directions in the first heat exchange module and the second heat exchange module so as to switch the first heat exchange module and the second heat exchange module between a first state and a second state;
the first state is a state in which the heat exchange states of the two heat exchangers in the first heat exchange module are the same and the heat exchange states of the two heat exchangers in the second heat exchange module are the same, and the second state is a state in which the heat exchange states of the two heat exchangers in at least one of the first heat exchange module and the second heat exchange module are different.
Optionally, the refrigerant flow direction switching module is a four-way valve, the four-way valve is provided with a first valve port, a second valve port, a third valve port and a fourth valve port, the second refrigerant port is connected with the first valve port, the fourth refrigerant port is connected with the second valve port, the sixth refrigerant port is connected with the third valve port, and the eighth refrigerant port is connected with the fourth valve port.
Optionally, the refrigerant flow direction switching module includes a first solenoid valve, a second solenoid valve, a third solenoid valve and a fourth solenoid valve, the first solenoid valve has a first interface and a second interface, the second solenoid valve has a third interface and a fourth interface, the third solenoid valve has a fifth interface and a sixth interface, and the fourth solenoid valve has a seventh interface and an eighth interface;
the first interface is connected with the fourth refrigerant port, the second interface is connected with the sixth refrigerant port, the third interface is connected with the second refrigerant port, the fourth interface is connected with the eighth refrigerant port, a refrigerant pipeline between the first interface and the fourth refrigerant port is connected with the fifth interface, a refrigerant pipeline between the second refrigerant port and the third interface is connected with the sixth interface, a refrigerant pipeline between the second interface and the sixth refrigerant port is connected with the seventh interface, and a refrigerant pipeline between the fourth interface and the eighth refrigerant port is connected with the eighth interface.
Optionally, the first heat exchanger and the second heat exchanger are arranged at intervals along the airflow direction in the first air duct, and the third heat exchanger and the fourth heat exchanger are arranged at intervals along the airflow direction in the second air duct.
Optionally, the air conditioner further includes a first centrifugal fan and a second centrifugal fan, the first centrifugal fan is disposed in the first air duct, and the second centrifugal fan is disposed in the second air duct.
Optionally, the housing has a first side and a second side opposite to each other, the first air duct has a first air inlet and a first air outlet communicated with the outside of the housing, the second air duct has a second air inlet and a second air outlet communicated with the outside of the housing, the first air inlet and the first air outlet are disposed on the first side, and the second air inlet and the second air outlet are disposed on the second side.
In addition, in order to achieve the above object, the present application also provides a control method of an air conditioner, based on the air conditioner as described in any one of the above, the control method of the air conditioner comprising the steps of:
acquiring a target operation mode of the air conditioner; the target operation mode is one of a first mode and a second mode;
determining control parameters of a refrigerant flow direction switching module according to the target operation mode;
controlling the refrigerant flow direction switching module to operate according to the control parameter so as to enable the first heat exchange module and the second heat exchange module to reach a target state corresponding to the target operation mode;
the target state corresponding to the first mode is a first state, the target state corresponding to the second mode is a second state, the first state is a state in which the heat exchange states of the two heat exchangers in the first heat exchange module are the same and the heat exchange states of the two heat exchangers in the second heat exchange module are the same, and the second state is a state in which the heat exchange states of the two heat exchangers in at least one of the first heat exchange module and the second heat exchange module are different.
Optionally, the refrigerant flow direction switching module is a four-way valve, and the step of determining the control parameter of the refrigerant flow direction switching module according to the target operation mode includes:
when the target operation mode is the first mode, taking a first valve position as the control parameter;
when the target operation mode is the second mode, taking a second valve position as the control parameter;
the first valve position is a valve position in which a first valve port and a second valve port in the four-way valve are communicated, and a third valve port and a fourth valve port are communicated, and the second valve position is a valve position in which the first valve port and the fourth valve port in the four-way valve are communicated, and the second valve port and the third valve port are communicated.
Optionally, the refrigerant flow direction switching module includes a first solenoid valve, a second solenoid valve, a third solenoid valve, and a fourth solenoid valve, and the step of determining the control parameter of the refrigerant flow direction switching module according to the target operation mode includes:
when the target operation mode is the first mode, taking the closing state of the first electromagnetic valve, the closing state of the second electromagnetic valve, the opening state of the third electromagnetic valve and the opening state of the fourth electromagnetic valve as the control parameters;
and when the target operation mode is the second mode, taking the opening state of the first electromagnetic valve, the opening state of the second electromagnetic valve, the closing state of the third electromagnetic valve and the closing state of the fourth electromagnetic valve as the control parameters.
Optionally, the step of obtaining the target operation mode of the air conditioner includes:
when the selection operation of the user about the operation mode exists, if the operation mode corresponding to the selection operation is a first mode, taking the first mode as the target operation mode;
and if the selected operation mode corresponding to the selection operation is a second mode, taking the second mode as the target operation mode.
Optionally, the step of obtaining the target operation mode of the air conditioner includes:
when the selection operation of the user about the running mode does not exist, acquiring a current first environment temperature and a current first environment humidity;
in the first mode and the second mode, one of the first ambient temperature and the first ambient humidity is selected as the target operation mode.
Optionally, in the first mode and the second mode, the step of selecting one of the first ambient temperature and the first ambient humidity as the target operation mode includes:
determining a temperature deviation rate between the first environment temperature and a set temperature, and determining a humidity deviation rate between the first environment humidity and the set humidity;
when the humidity deviation rate is smaller than the temperature deviation rate, taking the first mode as the target operation mode;
and when the humidity deviation rate is larger than the temperature deviation rate, taking the second mode as the target operation mode.
Optionally, the throttling device is an electronic expansion valve, and after the step of obtaining the target operation mode of the air conditioner, the method further includes:
when the target operation mode is the first mode, acquiring a current second environment temperature;
determining a temperature deviation amount between the second ambient temperature and a set temperature;
determining a first operating frequency of a compressor and a first opening degree of the electronic expansion valve according to the temperature deviation amount;
and controlling the compressor to operate according to the first operation frequency, and controlling the electronic expansion valve to operate according to the first opening degree.
Optionally, the throttling device is an electronic expansion valve, and after the step of obtaining the target operation mode of the air conditioner, the method further includes:
when the target operation mode is a second mode, acquiring current second ambient humidity;
determining a humidity deviation amount between the second ambient humidity and a set humidity;
determining a second operation frequency of the compressor and a second opening degree of the electronic expansion valve according to the humidity deviation amount;
and controlling the compressor to operate according to the second operation frequency, and controlling the electronic expansion valve to operate according to the second opening degree.
In order to achieve the above object, the present application also provides a control device of an air conditioner, including: the control method comprises the steps of realizing the control method of the air conditioner according to any one of the above items when the control program of the air conditioner is executed by the processor.
Further, in order to achieve the above object, the present application also proposes a readable storage medium having stored thereon a control program of an air conditioner, which when executed by a processor, implements the steps of the control method of the air conditioner as recited in any one of the above.
The invention provides an air conditioner, which is characterized in that heat exchange modules comprising two heat exchangers are respectively arranged in two mutually isolated air channels. One heat exchanger in the first heat exchange module is connected with one heat exchanger in the second heat exchange module through a throttling device, the other heat exchanger in the first heat exchange module and the other heat exchanger in the second heat exchange module are respectively connected to an exhaust port and an air return port of the compressor, and the four heat exchangers are all connected with the refrigerant flow direction switching module.
The refrigerant flow direction in the first heat exchange module and the refrigerant flow direction in the second heat exchange module are switched through the refrigerant flow direction switching module, and the heat exchange states of the two heat exchangers in the heat exchange modules in each air channel can be switched between the same state and the different states. One is that when the heat exchange states of two heat exchangers in the heat exchange module in one air duct are the same, the air conditioner can send cold air or hot air to the indoor environment to adjust the temperature of the indoor environment. And the other state is that the heat exchange states of two heat exchangers in the heat exchange module in one air channel are different, and the air entering the air channel can be cooled and dehumidified through the heat exchanger in the evaporation state and heated through the heat exchanger in the condensation state respectively, so that the temperature of the air in the indoor environment can not be changed while the air in the indoor environment is dehumidified by the air conditioner, and the constant-temperature dehumidification of the air conditioner is realized.
Therefore, through the arrangement of the air conditioner, the air conditioner can simultaneously have the functions of temperature regulation and constant temperature dehumidification so as to meet different air conditioning requirements of users.
Drawings
FIG. 1 is a schematic diagram of a refrigerant circulation circuit according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a refrigerant circulation circuit according to another embodiment of the air conditioner of the present invention;
FIG. 3 is a schematic diagram of a refrigerant circulation circuit according to another embodiment of the air conditioner of the present invention;
FIG. 4 is a schematic diagram of a hardware configuration involved in the operation of an embodiment of the control device of the air conditioner of the present invention;
FIG. 5 is a flowchart illustrating an embodiment of a method for controlling an air conditioner according to the present invention;
FIG. 6 is a flow chart illustrating a control method of an air conditioner according to another embodiment of the present invention;
FIG. 7 is a flow chart illustrating a control method of an air conditioner according to another embodiment of the present invention;
fig. 8 is a flowchart illustrating a control method of an air conditioner according to still another embodiment of the present invention.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
1 First heat exchange module 5 Refrigerant flow direction switching module
11 First heat exchanger 50a First valve port
111 First refrigerant port 50b Second valve port
112 Second refrigerant port 50c Third valve port
12 Second heat exchanger 50d Fourth valve port
121 Third refrigerant port 501 First electromagnetic valve
122 The fourth refrigerant port 501a First interface
2 Second heat exchange module 501b Second interface
21 Third heat exchanger 502 Second electromagnetic valve
211 Fifth refrigerant port 502a Third interface
212 Sixth refrigerant port 502b Fourth interface
22 Fourth heat exchanger 503 Third solenoid valve
221 The seventh refrigerant port 503a Fifth interface
222 Eighth refrigerant port 503b Sixth interface
3 Throttle device 504 Fourth solenoid valve
4 Compressor 504a Seventh interface
41 Exhaust port 504b Eighth interface
42 Air return port
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides an air conditioner. An air conditioner refers in particular to a device that uses a heat pump system to condition an indoor environment. In the present embodiment, the air conditioner is specifically referred to as a mobile air conditioner. In other embodiments, the air conditioner can be set as other types of air conditioners (such as a cabinet air conditioner, a window air conditioner, etc.) according to actual requirements.
In the embodiment of the present invention, referring to fig. 1, an air conditioner specifically includes a housing, a first heat exchange module 1, a second heat exchange module 2, a throttling device 3, a compressor 4, a refrigerant flow direction switching module 5, a first fan, and a second fan.
Specifically, a first air duct and a second air duct which are isolated from each other are arranged in the shell. The shell is provided with a first air inlet, a second air inlet, a first air outlet and a second air outlet. The first air duct is communicated with the first air inlet and the first air outlet respectively, and the second air duct is communicated with the second air inlet and the second air outlet respectively. The first heat exchange module 1 and the first fan are arranged in the first air duct, air in the environment enters the first air duct from the first air inlet under the action of airflow disturbance of the first fan, and the air after heat exchange of the first heat exchange module 1 is sent into the environment from the first air outlet; the second heat exchange module 2 and the second fan are arranged in the second air duct, under the action of airflow disturbance of the second fan, air in the environment enters the second air duct from the second air inlet, and the air subjected to heat exchange by the second heat exchange module 2 is sent into the environment from the second air outlet. At least one of the first air outlet and the second air outlet and at least one of the first air inlet and the second air inlet are communicated with the indoor environment. The compressor 4, the throttling device 3 and the refrigerant flow direction cutting module are all arranged in the shell, the arrangement positions of the compressor 4, the throttling device 3 and the refrigerant flow direction cutting module are not particularly limited, the compressor can be arranged in one of the first air channel and the second air channel, and the compressor can also be arranged in another accommodating cavity isolated from the first air channel and the second air channel independently of the first air channel and the second air channel.
Specifically, in this embodiment, first fan and second fan are centrifugal fan to improve the air-out effect of first air outlet and second air outlet. In other embodiments, the first fan and the second fan may be configured as axial fans or other types of fans according to the actual structural characteristics of the air duct.
The air conditioner comprises a first heat exchange module 1, a second heat exchange module 2, a throttling device 3, a compressor 4 and a refrigerant flow direction switching module 5, wherein the first heat exchange module, the second heat exchange module, the throttling device, the compressor and the refrigerant flow direction switching module are connected to form a refrigerant circulation loop of the air conditioner. Specifically, the first heat exchange module 1 includes a first heat exchanger 11 and a second heat exchanger 12, the first heat exchanger 11 is provided with a first refrigerant port 111 and a second refrigerant port 112, and the second heat exchanger 12 is provided with a third refrigerant port 121 and a fourth refrigerant port 122; the second heat exchange module 2 comprises a third heat exchanger 21 and a fourth heat exchanger 22, the third heat exchanger 21 is provided with a fifth refrigerant port 211 and a sixth refrigerant port 212, and the fourth heat exchanger 22 is provided with a seventh refrigerant port 221 and an eighth refrigerant port 222; one end of the throttling device 3 is connected with the first refrigerant port 111, and the other end of the throttling device 3 is connected with the fifth refrigerant port 211; the exhaust port 41 is connected to the third refrigerant port 121, and the return port 42 is connected to the seventh refrigerant port 221; the second refrigerant port 112, the fourth refrigerant port 122, the sixth refrigerant port 212, and the eighth refrigerant port 222 are all connected to the refrigerant flow direction switching module 5.
The refrigerant flow direction switching module 5 may be configured to switch refrigerant flow directions in the first heat exchange module 1 and the second heat exchange module 2, so that the first heat exchange module 1 and the second heat exchange module 2 are switched between a first state and a second state. The first state is a state in which the heat exchange states of the two heat exchangers in the first heat exchange module 1 are the same and the heat exchange states of the two heat exchangers in the second heat exchange module 2 are the same, and the second state is a state in which the heat exchange states of the two heat exchangers in at least one of the first heat exchange module 1 and the second heat exchange module 2 are different. Specifically, the first state specifically means that the first heat exchanger 11 and the second heat exchanger 12 are both in the condensation state and the third heat exchanger 21 and the fourth heat exchanger 22 are both in the evaporation state. The second state specifically includes that the first heat exchanger 11 is in an evaporation state, the second heat exchanger 12 is in a condensation state, the third heat exchanger 21 is in a condensation state, and the fourth heat exchanger 22 is in an evaporation state, or both the first heat exchanger 11 and the second heat exchanger 12 are in a condensation state, the third heat exchanger 21 is in a condensation state, and the fourth heat exchanger 22 is in an evaporation state, or both the first heat exchanger 11 is in an evaporation state, the second heat exchanger 12 is in a condensation state, and both the third heat exchanger 21 and the fourth heat exchanger 22 are in an evaporation state.
Based on the refrigerant circulation loop formed by the above connection, in the present embodiment, the refrigerant flow direction switching module 5 can control the refrigerant discharged from the discharge port 41 of the compressor 4 to flow back to the return port 42 of the compressor 4 in one of the first flow direction and the second flow direction according to the actual requirement.
In this embodiment, the first flow direction of the refrigerant is specifically as follows: the high temperature refrigerant flowing out of the discharge port 41 of the compressor 4 flows into the second heat exchanger 12 from the third refrigerant port 121, flows into the refrigerant flow direction switching module 5 from the fourth refrigerant port 122 after being condensed in the second heat exchanger 12, the refrigerant flowing into the refrigerant flow direction switching module 5 in the second heat exchanger 12 flows into the third heat exchanger 21 from the sixth refrigerant port 212 under the guiding action of the refrigerant flow direction switching module 5, further flows into the throttling device 3 from the fifth refrigerant port 211 after being condensed in the third heat exchanger 21, the throttling device 3 throttles and depressurizes the refrigerant to form a low temperature refrigerant, the low temperature refrigerant flows into the first heat exchanger 11 from the first refrigerant port 111 to be evaporated, the evaporated refrigerant flows into the refrigerant flow direction switching module 5 from the second refrigerant port 112, the refrigerant flowing into the refrigerant flow direction switching module 5 in the first heat exchanger 11 flows into the fourth heat exchanger 22 from the eighth port 222 to be further evaporated under the guiding action of the refrigerant flow direction switching module 5, the evaporated refrigerant flows out of the seventh refrigerant port 221 and returns to the return port 42 of the compressor 4, thereby completing one refrigerant cycle.
In the first downward flow, the heat exchange states of the two heat exchangers in the first heat exchange module 1 and the second heat exchange module 2 are different, specifically, the first heat exchanger 11 in the first heat exchange module 1 is in an evaporation state, the second heat exchanger 12 is in a condensation state, the third heat exchanger 21 in the second heat exchange module 2 is in a condensation state, and the fourth heat exchanger 22 is in an evaporation state. Therefore, when the refrigerant flows in the refrigerant circulation loop in the first flow direction, the first heat exchange module 1 and the second heat exchange module 2 are in the second state, the air entering the first air duct from the first air inlet is blown out from the first air outlet after passing through the cooling and dehumidifying effects of the first heat exchanger 11 and the heating effect of the second heat exchanger 12 respectively, and the air entering the second air duct from the second air inlet is blown out from the second air outlet after passing through the cooling and dehumidifying effects of the fourth heat exchanger 22 and the heating effect of the third heat exchanger 21 respectively. The humidity of the air blown out from the first air outlet is reduced and the temperature of the air is unchanged compared with the air entering from the first air inlet, and the humidity of the air blown out from the second air outlet is reduced and the temperature of the air blown out from the second air inlet is unchanged compared with the air entering from the second air inlet.
In this embodiment, the second flow direction of the refrigerant is specifically as follows: the high temperature refrigerant flowing out of the discharge port 41 of the compressor 4 flows into the second heat exchanger 12 from the third refrigerant port 121, flows into the refrigerant flow direction switching module 5 from the fourth refrigerant port 122 after being condensed in the second heat exchanger 12, the refrigerant flowing into the refrigerant flow direction switching module 5 in the second heat exchanger 12 flows into the first heat exchanger 11 from the second refrigerant port 112 under the guiding action of the refrigerant flow direction switching module 5, further flows into the throttling device 3 from the first refrigerant port 111 after being condensed in the first heat exchanger 11, the throttling device 3 throttles and depressurizes the refrigerant to form a low temperature refrigerant, the low temperature refrigerant flows into the third heat exchanger 21 from the fifth refrigerant port 211 to be evaporated, the evaporated refrigerant flows into the refrigerant flow direction switching module 5 from the sixth refrigerant port 212, and the refrigerant flowing into the refrigerant flow direction switching module 5 in the third heat exchanger 21 flows into the fourth heat exchanger 22 from the eighth port 222 to be further evaporated under the guiding action of the refrigerant flow direction switching module 5, the evaporated refrigerant flows out of the seventh refrigerant port 221 and returns to the return port 42 of the compressor 4, thereby completing one refrigerant cycle.
In the second downward flow, the heat exchange states of the two heat exchangers in the first heat exchange module 1 and the second heat exchange module 2 are the same, specifically, the first heat exchanger 11 and the second heat exchanger 12 in the first heat exchange module 1 are both in a condensation state, and the third heat exchanger 21 and the fourth heat exchanger 22 in the second heat exchange module 2 are both in an evaporation state. Therefore, when the refrigerant flows in the refrigerant circulation loop in the second flow direction, the first heat exchange module 1 and the second heat exchange module 2 are in the second state, air entering the first air duct from the first air inlet is heated through the condensation action of the first heat exchanger 11 and the second heat exchanger 12 and then blown out from the second air outlet, and air entering the second air duct from the second air inlet is cooled through the evaporation action of the third heat exchanger 21 and the fourth heat exchanger 22 and then blown out from the second air outlet. Wherein the temperature of the air blown out from the first outlet is increased compared with the air entering from the first inlet, and the temperature of the air blown out from the second outlet is decreased compared with the air entering from the second inlet.
When the air conditioner needs constant temperature dehumidification, the refrigerant can be controlled to circulate in a first flow direction through the refrigerant flow direction switching module 5; when the air conditioner needs to heat, the refrigerant can be controlled to circulate in a second flow direction through the refrigerant flow direction switching module 5, wherein the outlet air of the first air outlet can face to the area where the user is located; the air outlet of the second air outlet can be separated from the area where the user is located, and the air outlet of the second air outlet can be guided to the outdoor environment through a pipeline; when the air conditioner needs to refrigerate, the refrigerant can be controlled to circulate in a second flow direction through the refrigerant flow direction switching module 5, wherein the outlet air of the second air outlet can face to the area where the user is located; the air outlet of the first air outlet can be separated from the area where the user is located, and the air outlet of the first air outlet can be guided to the outdoor environment through a pipeline.
The specific structure of the refrigerant flow direction switching module 5 can be set according to actual requirements, and can be any type of structure, and only the state switching of the first heat exchange module 1 and the second heat exchange module 2 can be realized. Specifically, the refrigerant flow direction switching module 5 may specifically include one or more combinations of a solenoid valve, a multi-way valve (such as a three-way valve, a four-way valve, etc.), an electronic expansion valve, a one-way valve, and the like.
According to the air conditioner provided by the embodiment of the invention, the heat exchange modules comprising two heat exchangers are respectively arranged in two mutually isolated air channels. One heat exchanger in the first heat exchange module 1 and one heat exchanger in the second heat exchange module 2 are connected through the throttling device 3, the other heat exchanger in the first heat exchange module 1 and the other heat exchanger in the second heat exchange module 2 are respectively connected to the exhaust port 41 and the return air port 42 of the compressor 4, and the four heat exchangers are all connected with the refrigerant flow direction switching module 5. The refrigerant flow direction in the first heat exchange module 1 and the refrigerant flow direction in the second heat exchange module 2 are switched through the refrigerant flow direction switching module 5, and the heat exchange states of the two heat exchangers in the heat exchange modules in each air duct can be switched between the same state and the different states. The air conditioner comprises an air duct, a heat exchange module, a heat exchanger and a heat exchanger, wherein the heat exchanger is arranged in the heat exchange module, the heat exchanger is arranged in the heat exchanger, the heat exchanger is arranged in the air duct, the heat exchanger is arranged in the air duct, the air conditioner is arranged in the air duct, the air duct is arranged in the air duct, the air conditioner is arranged in the air duct, the air duct is arranged in the air duct, the air conditioner is arranged in the air duct, the air duct is arranged in the air duct, the air conditioner is arranged in the air conditioner, and the air duct, the air conditioner is arranged in the air duct, the air duct is arranged in the air duct, and the air duct, the air conditioner is arranged in the air duct, the air conditioner, and the air duct, the air conditioner is arranged in the air duct, the air conditioner is arranged in the air conditioner, and the air conditioner is arranged in the air duct, the air duct is arranged in the air duct, and the air duct is arranged in. Therefore, through the arrangement of the air conditioner, the air conditioner can simultaneously have the functions of temperature regulation and constant temperature dehumidification so as to meet different air conditioning requirements of users.
Specifically, in this embodiment, the housing has a first side and a second side opposite to each other, the first air duct has a first air inlet and a first air outlet communicated with the outside of the housing, the second air duct has a second air inlet and a second air outlet communicated with the outside of the housing, the first air inlet and the first air outlet are disposed on the first side, and the second air inlet and the second air outlet are disposed on the second side. Through this mode, need not to set up the pipeline with external environment intercommunication, the air-out of two air outlets does not influence each other, and when an air outlet was refrigerated or was heated towards the user, another air outlet need not external pipeline and also can not influence user's travelling comfort.
Further, in another embodiment of the air conditioner according to the present invention, as shown in fig. 2, the refrigerant flow direction switching module 5 is a four-way valve, the four-way valve has a first valve port 50a, a second valve port 50b, a third valve port 50c and a fourth valve port 50d, the second refrigerant port 112 is connected to the first valve port 50a, the fourth refrigerant port 122 is connected to the second valve port 50b, the sixth refrigerant port 212 is connected to the third valve port 50c, and the eighth refrigerant port 222 is connected to the fourth valve port 50 d.
The second port 50b is switchably connected to the first port 50a and the third port 50c, and the fourth port 50d is switchably connected to the second port 50b and the third port 50 c. Specifically, when the first heat exchange module 1 and the second heat exchange module 2 need to be switched to the first state, the first valve port 50a and the second valve port 50b in the four-way valve are connected, and the third valve port 50c and the fourth valve port 50d are connected (as shown by the dotted line in the figure), at this time, the refrigerant flows in the refrigerant circulation loop in the second flow direction, so that the first heat exchange module 1 and the second heat exchange module 2 regulate the indoor air in the first state. When the first heat exchange module 1 and the second heat exchange module 2 need to be switched to the second state, the second valve port 50b and the third valve port 50c in the four-way valve are connected, and the first valve port 50a and the fourth valve port 50d are connected (as shown by a solid line in the figure), at this time, the refrigerant flows in the refrigerant circulation loop in the first flow direction, so that the first heat exchange module 1 and the second heat exchange module 2 regulate the indoor air in the second state.
Here, the refrigerant flow direction switching module 5 is a four-way valve, so that the first heat exchange module 1 and the second heat exchange module 2 can be switched between the first state and the second state by reversing the four-way valve.
Further, in another embodiment of the air conditioner according to the present invention, as shown in fig. 3, the refrigerant flow direction switching module 5 includes a first solenoid valve 501, a second solenoid valve 502, a third solenoid valve 503 and a fourth solenoid valve 504, the first solenoid valve 501 has a first port 501a and a second port 501b, the second solenoid valve 502 has a third port 502a and a fourth port 502b, the third solenoid valve 503 has a fifth port 503a and a sixth port 503b, and the fourth solenoid valve 504 has a seventh port 504a and an eighth port 504 b; the first connector 501a is connected to the fourth refrigerant port 122, the second connector 501b is connected to the sixth refrigerant port 212, the third connector 502a is connected to the second refrigerant port 112, the fourth connector 502b is connected to the eighth refrigerant port 222, a refrigerant pipeline between the first connector 501a and the fourth refrigerant port 122 is connected to the fifth connector 503a, a refrigerant pipeline between the second refrigerant port 112 and the third connector 502a is connected to the sixth connector 503b, a refrigerant pipeline between the second connector 501b and the sixth refrigerant port 212 is connected to the seventh connector 504a, and a refrigerant pipeline between the fourth connector 502b and the eighth refrigerant port 222 is connected to the eighth connector 504 b.
The first solenoid valve 501, the second solenoid valve 502, the third solenoid valve 503 and the fourth solenoid valve 504 can be opened or closed according to actual requirements. Specifically, when the first heat exchange module 1 and the second heat exchange module 2 need to be switched to the first state, the first electromagnetic valve 501 and the second electromagnetic valve 502 are both closed, the third electromagnetic valve 503 and the fourth electromagnetic valve 504 are both opened, and at this time, the refrigerant flows in the refrigerant circulation loop in the second flow direction, so that the first heat exchange module 1 and the second heat exchange module 2 regulate the indoor air in the first state. When the first heat exchange module 1 and the second heat exchange module 2 need to be switched to the second state, the first electromagnetic valve 501 and the second electromagnetic valve 502 are both opened, the third electromagnetic valve 503 and the fourth electromagnetic valve 504 are both closed, and at this time, the refrigerant flows in the refrigerant circulation loop in the first flow direction, so that the first heat exchange module 1 and the second heat exchange module 2 regulate the indoor air in the second state.
Here, the refrigerant flow direction switching module 5 is provided with four electromagnetic valves, so that the first heat exchange module 1 and the second heat exchange module 2 can be switched between the first state and the second state by the on-off cooperation of the four electromagnetic valves.
Further, based on any one of the above embodiments, in a further embodiment of the air conditioner of the present invention, the first heat exchanger 11 and the second heat exchanger 12 are arranged at intervals along the airflow direction in the first air duct, and the third heat exchanger 21 and the fourth heat exchanger 22 are arranged at intervals along the airflow direction in the second air duct. Two heat exchangers in every wind channel interval set up to avoid the heat transfer effect of two heat exchangers to influence each other, thereby improve heat exchange efficiency.
Specifically, in order to improve the dehumidification effect during constant-temperature dehumidification, the distance between the first heat exchanger 11 and the first air inlet is smaller than the distance between the second heat exchanger 12 and the second air inlet, and the distance between the fourth heat exchanger 22 and the second air inlet is smaller than the distance between the third heat exchanger 21 and the second air inlet, so that when constant-temperature dehumidification is ensured, air entering an air channel is cooled and dehumidified by the evaporator and then is heated by the condenser, condensation of more moisture in the air in the evaporator is facilitated, and the dehumidification effect is improved.
The embodiment of the invention provides a control device of an air conditioner, which is applied to regulating and controlling the operation of the air conditioner.
In an embodiment of the present invention, referring to fig. 4, a control apparatus of an air conditioner includes: a processor 1001 (e.g., CPU), memory 1002, etc. The memory 1002 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1002 may alternatively be a storage device separate from the processor 1001.
The refrigerant flow direction switching module 5, the first fan 01, the second fan 02, the compressor 4, and the like may be connected to a processor 1001, and the processor 1001 may be configured to control operations of the above components. The memory 1002 is also connected to the memory 1001, and the processor 1001 can read data in the memory 1002.
Those skilled in the art will appreciate that the configuration of the device shown in fig. 4 does not constitute a limitation of the device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 4, a control program of the air conditioner may be included in the memory 1002 as a readable storage medium. In the apparatus shown in fig. 4, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1002 and perform operations of the relevant steps of the control method of the air conditioner in the following embodiments.
The embodiment of the invention also provides a control method of the air conditioner, which is applied to control the movable empty sleeve.
Referring to fig. 5, an embodiment of a control method of an air conditioner according to the present application is provided. In this embodiment, the method for controlling an air conditioner includes:
step S10, acquiring a target operation mode of the air conditioner; the target operation mode is one of a first mode and a second mode;
the target operation mode specifically refers to a mode in which the air conditioner is currently required to operate. In the present embodiment, the first mode specifically refers to an air conditioner operation mode for the purpose of temperature adjustment. The first mode specifically includes a heating mode or a cooling mode. In the heating mode, the air conditioner can increase the temperature of the ambient air in the area where the user is located; in the cooling mode, the air conditioner may lower the temperature of ambient air in an area where a user is located. The second mode specifically refers to an air conditioner operation mode for the purpose of humidity adjustment. The second mode is specifically a constant temperature dehumidification mode. In the constant temperature dehumidification mode, the air conditioner can reduce the humidity of the ambient air in the area where the user is located, and meanwhile, the temperature of the ambient air in the area where the user is located is not changed.
The target operation mode can be obtained by obtaining user set parameters or analyzing the environment parameters monitored by the air conditioner in real time.
Step S20, determining a control parameter of the refrigerant flow direction switching module 5 according to the target operation mode;
the control parameter specifically refers to a target parameter for enabling each heat exchanger in the first heat exchange module 1 and the second heat exchange module 2 to reach a target state corresponding to a target operation mode, and the refrigerant flow direction switching module 5 operates. The operation requirements of different target operation modes are different, and the states of the first heat exchange module 1 and the second heat exchange module 2 required by the target operation modes are different, so that the control parameters of the corresponding refrigerant flow direction switching module 5 are different. Specifically, the control parameters of the refrigerant flow direction switching module 5 corresponding to each target operation mode may be different depending on different types and positions of components set in the refrigerant flow direction switching module 5, and the control parameters of the refrigerant flow direction switching module 5 corresponding to different operation modes may be determined in advance based on the structure of the refrigerant flow direction switching module 5 and the connection manner of the refrigerant flow direction switching module in the refrigerant circulation loop. Based on the preset corresponding relationship between the operation mode and the control parameter, the control parameter of the refrigerant flow direction switching module 5 corresponding to the current target operation mode can be determined.
The control parameters of the refrigerant flow direction switching module 5 may specifically include the opening or closing, the position state, and the like of the sub-components in the refrigerant flow direction switching module 5. Specifically, when the refrigerant flow direction switching module 5 includes an electromagnetic valve, the control parameter may include opening or closing of the electromagnetic valve; when the refrigerant flow direction switching module 5 includes an electronic expansion valve, the control parameters may include the opening size, opening or closing, and the like of the electronic expansion valve; when the refrigerant flow direction switching module 5 includes a multi-way valve (e.g., a three-way valve, a four-way valve, etc.), the control parameter may include a valve position of the multi-way valve. When the refrigerant flow direction switching module 5 includes more than one of the fluid control modules, such as an electromagnetic valve, an electronic expansion valve, and a multi-way valve, the control parameters may include more than one of the above-mentioned control parameters.
Step S30, controlling the refrigerant flow direction switching module 5 to operate according to the control parameter, so that the first heat exchange module 1 and the second heat exchange module 2 reach a target state corresponding to the target operation mode;
the target state corresponding to the first mode is a first state, the target state corresponding to the second mode is a second state, the first state is a state in which the heat exchange states of the two heat exchangers in the first heat exchange module 1 are the same and the heat exchange states of the two heat exchangers in the second heat exchange module 2 are the same, and the second state is a state in which the heat exchange states of the two heat exchangers in at least one of the first heat exchange module 1 and the second heat exchange module 2 are different.
Specifically, when the target operation mode is the first mode, the corresponding control parameter is the first parameter, and the refrigerant flow direction switching module 5 is controlled to operate according to the first parameter, so that the first heat exchange module 1 and the second heat exchange module 2 can reach the first state; when the target operation mode is the second mode and the corresponding control parameter is the second parameter, the refrigerant flow direction switching module 5 is controlled to operate according to the second parameter, so that the first heat exchange module 1 and the second heat exchange module 2 can reach the second state.
When the target operation mode is the constant temperature dehumidification mode, and the refrigerant flow direction switching module 5 operates with the second parameter, the refrigerant circulates in the first flow direction mentioned in the above embodiment. In the first downward flow, the heat exchange states of the two heat exchangers in the first heat exchange module 1 and the second heat exchange module 2 are different, specifically, the first heat exchanger 11 in the first heat exchange module 1 is in an evaporation state, the second heat exchanger 12 is in a condensation state, the third heat exchanger 21 in the second heat exchange module 2 is in a condensation state, and the fourth heat exchanger 22 is in an evaporation state. The air entering the first air duct from the first air inlet is blown out from the first air outlet after the cooling and dehumidifying effects of the first heat exchanger 11 and the heating effect of the second heat exchanger 12 respectively, and the air entering the second air duct from the second air inlet is blown out from the second air outlet after the cooling and dehumidifying effects of the fourth heat exchanger 22 and the heating effect of the third heat exchanger 21 respectively. The humidity of the air blown out from the first air outlet is reduced and the temperature of the air is unchanged compared with the air entering from the first air inlet, and the humidity of the air blown out from the second air outlet is reduced and the temperature of the air blown out from the second air inlet is unchanged compared with the air entering from the second air inlet.
When the target operation mode is the heating mode or the cooling mode, and the refrigerant flow direction switching module 5 operates with the first parameter, the refrigerant circulates in the second flow direction mentioned in the above embodiment. In the second downward flow, the heat exchange states of the two heat exchangers in the first heat exchange module 1 and the second heat exchange module 2 are the same, specifically, the first heat exchanger 11 and the second heat exchanger 12 in the first heat exchange module 1 are both in a condensation state, and the third heat exchanger 21 and the fourth heat exchanger 22 in the second heat exchange module 2 are both in an evaporation state. When the refrigerant flows in the refrigerant circulation loop in the second flow direction, the first heat exchange module 1 and the second heat exchange module 2 are in the second state, air entering the first air duct from the first air inlet is heated through the condensation action of the first heat exchanger 11 and the second heat exchanger 12 and then blown out from the second air outlet, and air entering the second air duct from the second air inlet is cooled through the evaporation action of the third heat exchanger 21 and the fourth heat exchanger 22 and then blown out from the second air outlet. Wherein the temperature of the air blown out from the first outlet is increased compared with the air entering from the first inlet, and the temperature of the air blown out from the second outlet is decreased compared with the air entering from the second inlet. When the target operation mode is the heating mode, the refrigerant flow direction switching module 5 can control the refrigerant to perform refrigerant circulation in a second flow direction, wherein the outlet air of the first air outlet can face the area where the user is located; the air outlet of the second air outlet can be separated from the area where the user is located, and the air outlet of the second air outlet can be guided to the outdoor environment through a pipeline. When the target operation mode is a refrigeration mode, the refrigerant can be controlled to perform refrigerant circulation in a second flow direction through the refrigerant flow direction switching module 5, wherein the air outlet of the second air outlet can face to the area where the user is located; the air outlet of the first air outlet can be separated from the area where the user is located, and the air outlet of the first air outlet can be guided to the outdoor environment through a pipeline.
In this embodiment, the air conditioner includes two kinds of operation modes of first mode and second mode, two heat exchanger heat transfer states in the heat transfer module are the same in two wind channels under first mode, then can make the air conditioner send into cold wind or hot-blast to the indoor environment, in order to carry out the heat transfer to the indoor environment, the heat transfer state of two heat exchangers in the heat transfer module is different in the wind channel under the second mode, the air that enters into in the wind channel can cool down the dehumidification through the heat exchanger of evaporation state respectively and heat up through the heat exchanger of condensation state, the heat exchanger of two different heat transfer states carries out temperature compensation to the air of dehumidification when can dehumidify, thereby make the air of air conditioner in to the indoor environment can not change the temperature of air in the indoor environment when dehumidifying, realize the constant temperature dehumidification of air conditioner. Based on the control parameter, the control parameter corresponding to one of the first mode and the second mode is determined to control the operation of the refrigerant flow direction switching module 5, so that the air conditioner can be switched between two functions of temperature regulation and constant temperature dehumidification according to the actual use requirement of a user, and different air conditioning requirements of the user are met.
In an implementation manner of this embodiment, when the refrigerant flow direction switching module 5 is a four-way valve, with reference to fig. 2, the step S20 specifically includes:
step S21, when the target operation mode is the first mode, using a first valve position as the control parameter;
step S22, when the target operation mode is the second mode, using a second valve position as the control parameter;
the first valve position is a valve position in which a first valve port 50a and a second valve port 50b in the four-way valve are communicated, and a third valve port 50c and a fourth valve port 50d are communicated, and the second valve position is a valve position in which the first valve port 50a and the fourth valve port 50d in the four-way valve are communicated, and the second valve port 50b and the third valve port 50c are communicated.
Specifically, when the four-way valve is switched to the first valve position, the refrigerant flows in the refrigerant circulation loop in the second flow direction, and the refrigerant flowing out of the compressor 4 sequentially passes through the second heat exchanger 12, the second valve port 50b, the first valve port 50a, the first heat exchanger 11, the throttling device 3, the third heat exchanger 21, the third valve port 50c, the fourth valve port 50d, and the fourth heat exchanger 22, and then flows back to the compressor 4. Based on this, after the high-temperature refrigerant is condensed and released heat sequentially through the second heat exchanger 12 and the first heat exchanger 11, the high-temperature refrigerant is throttled and depressurized into a low-temperature refrigerant through the throttling device 3, and the low-temperature refrigerant is evaporated and absorbed heat sequentially through the third heat exchanger 21 and the fourth heat exchanger 22, so that the first heat exchange module 1 and the second heat exchange module 2 reach a first state corresponding to the first mode.
Specifically, when the four-way valve is switched to the second valve position, the refrigerant flows in the refrigerant circulation loop in the first flow direction, and the refrigerant flowing out of the compressor 4 sequentially passes through the second heat exchanger 12, the second valve port 50b, the third valve port 50c, the third heat exchanger 21, the throttling device 3, the first heat exchanger 11, the first valve port 50a, the fourth valve port 50d, and the fourth heat exchanger 22, and then flows back to the compressor 4. Based on this, after the high-temperature refrigerant is condensed and released heat sequentially through the second heat exchanger 12 and the third heat exchanger 21, the high-temperature refrigerant is throttled and depressurized into a low-temperature refrigerant through the throttling device 3, and the low-temperature refrigerant is evaporated and absorbed heat sequentially through the first heat exchanger 11 and the fourth heat exchanger 22, so that the first heat exchange module 1 and the second heat exchange module 2 reach a second state corresponding to a second mode.
Based on the above steps S21 and S22, the first heat exchange module 1 and the second heat exchange module 2 can be switched between the first state and the second state by switching the first valve position and the second valve position of the four-way valve, so as to meet different adjustment requirements of the user with the temperature or the function requirement of constant temperature dehumidification required by the current target operation mode of the air conditioner.
In another implementation manner of this embodiment, the refrigerant flow direction switching module 5 includes a first solenoid valve 501, a second solenoid valve 502, a third solenoid valve 503 and a fourth solenoid valve 504, and with reference to fig. 3 and 7, the step S20 includes:
step S201, when the target operation mode is the first mode, taking the closed state of the first electromagnetic valve 501, the closed state of the second electromagnetic valve 502, the open state of the third electromagnetic valve 503, and the open state of the fourth electromagnetic valve 504 as the control parameters;
step S202, when the target operation mode is the second mode, using the open state of the first electromagnetic valve 501, the open state of the second electromagnetic valve 502, the close state of the third electromagnetic valve 503, and the close state of the fourth electromagnetic valve 504 as the control parameters.
Specifically, when the first solenoid valve 501 and the second solenoid valve 502 are both closed and the third solenoid valve 503 and the fourth solenoid valve 504 are both opened, the refrigerant flows in the second flow direction in the refrigerant circulation loop, and the refrigerant flowing out of the compressor 4 sequentially passes through the second heat exchanger 12, the third solenoid valve 503, the first heat exchanger 11, the throttling device 3, the third heat exchanger 21, the fourth solenoid valve 504, and the fourth heat exchanger 22 and then flows back to the compressor 4. Based on this, after the high-temperature refrigerant is condensed and released heat sequentially through the second heat exchanger 12 and the first heat exchanger 11, the high-temperature refrigerant is throttled and depressurized into a low-temperature refrigerant through the throttling device 3, and the low-temperature refrigerant is evaporated and absorbed heat sequentially through the third heat exchanger 21 and the fourth heat exchanger 22, so that the first heat exchange module 1 and the second heat exchange module 2 reach a first state corresponding to the first mode.
Specifically, when the first solenoid valve 501 and the second solenoid valve 502 are both opened and the third solenoid valve 503 and the fourth solenoid valve 504 are both closed, the refrigerant flows in the refrigerant circulation loop in the first flow direction, and the refrigerant flowing out of the compressor 4 sequentially passes through the second heat exchanger 12, the first solenoid valve 501, the third heat exchanger 21, the throttling device 3, the first heat exchanger 11, the second solenoid valve 502, and the fourth heat exchanger 22 and then flows back to the compressor 4. Based on this, after the high-temperature refrigerant is condensed and released heat sequentially through the second heat exchanger 12 and the third heat exchanger 21, the high-temperature refrigerant is throttled and depressurized into a low-temperature refrigerant through the throttling device 3, and the low-temperature refrigerant is evaporated and absorbed heat sequentially through the first heat exchanger 11 and the fourth heat exchanger 22, so that the first heat exchange module 1 and the second heat exchange module 2 reach a second state corresponding to a second mode.
Based on the above steps S201 and S202, the first heat exchange module 1 and the second heat exchange module 2 can be switched between the first state and the second state by switching the open/close states of the four electromagnetic valves, so as to meet different adjustment requirements of users with the temperature or constant temperature dehumidification function required by the current target operation mode of the air conditioner.
Further, based on the above embodiments, another embodiment of the control method of the air conditioner of the present application is provided. In this embodiment, referring to fig. 6, the step S10 includes:
step S11, determining whether there is a user selection operation regarding the operation mode;
if yes, executing step S12 and step S13; if not, step S14 and step S15 are executed.
Specifically, whether a setting instruction of the operation mode is received within a set time before the current time or after the air conditioner is powered on can be judged, and if the setting instruction is received, the selection operation of a user is indicated; if not, the selection operation of the user does not exist.
Step S12, if the selected operation mode corresponding to the selection operation is a first mode, taking the first mode as the target operation mode;
step S13, if the selected operation mode corresponding to the selection operation is a second mode, the second mode is taken as the target operation mode.
Step S14, acquiring a current first environment temperature and a current first environment humidity;
specifically, a first ambient temperature can be obtained by acquiring data currently detected by a temperature sensor arranged in an air conditioner acting space; the first environmental humidity is obtained by acquiring data currently detected by a humidity sensor arranged in an acting space of the air conditioner.
Step S15, in the first mode and the second mode, selecting one of the first ambient temperature and the first ambient humidity as the target operation mode.
Different environmental temperatures and environmental humidities have different operating requirements on the heat exchange states of the first heat exchange module 1 and the second heat exchange module 2. Based on this, when the first ambient temperature is too high or too low, and the first ambient humidity is appropriate, the first mode can be taken as the target operation mode; the second mode may be the target operating mode when the first ambient humidity is too high or too low and the first ambient temperature is favorable.
Further, in order to ensure the accuracy of the selected target operation mode, step S15 specifically includes:
step S151, determining a temperature deviation ratio between the first ambient temperature and a set temperature, and determining a humidity deviation ratio between the first ambient humidity and the set humidity;
the set temperature specifically refers to a target temperature that needs to be reached in an environment that meets the comfort needs of the user; the set humidity refers in particular to a target humidity that is required to be reached by the environment to meet the comfort requirements of the user.
Specifically, the temperature deviation rate is first ambient temperature-set temperature/first ambient temperature. The humidity deviation ratio is first ambient humidity-set humidity/first ambient humidity.
Step S152, when the humidity deviation rate is smaller than the temperature deviation rate, taking the first mode as the target operation mode;
and step S153, when the humidity deviation rate is larger than the temperature deviation rate, taking the second mode as the target operation mode.
In this embodiment, when the user selects one of the first mode and the second mode as the operation mode of the air conditioner, the air conditioner is controlled to operate according to the mode selected by the user, so as to meet the air conditioning requirement of the user; when the user selects the operation mode of the air conditioner, the temperature and humidity conditions of the indoor environment are automatically identified, one of the first mode and the second mode is automatically selected as the operation mode of the air conditioner based on the identified temperature and humidity conditions, and therefore the operation of the air conditioner can be matched with the temperature and humidity conditions of the action environment of the air conditioner, and the air conditioner can be automatically adjusted to the state meeting the comfort requirement of the user by the environment where the air conditioner is located. Specifically, when the temperature deviation rate is greater than the humidity deviation rate, it indicates that the temperature in the environment has a greater negative impact on the comfort of the user than the humidity, and based on this, the first mode is taken as the target operation mode to quickly improve the comfort of the user; when the humidity deviation rate is larger than the temperature deviation rate, the negative influence of the humidity in the environment on the user comfort compared with the temperature is larger, and on the basis, the second mode is taken as the target operation mode to rapidly improve the user comfort.
Further, based on the above embodiments, another embodiment of the control method of the air conditioner of the present application is provided. In this embodiment, referring to fig. 7, after step S10, the method further includes:
step S401, when the target operation mode is the first mode, acquiring a current second environment temperature;
the second ambient temperature is obtained in the same manner as the first ambient temperature in the above-described embodiment. Wherein, when there is no selection operation by the user, the second environment temperature and the first environment temperature can be obtained simultaneously.
Step S402, determining the temperature deviation amount between the second environment temperature and the set temperature;
specifically, the temperature deviation amount ═ second ambient temperature-set temperature |. The set temperature here is the same temperature as that in the above-described embodiment.
Step S403, determining a first operating frequency of the compressor 4 and a first opening degree of the electronic expansion valve according to the temperature deviation amount;
different temperature deviations correspond to different operating frequencies of the compressor 4 and different opening degrees of the electronic expansion valve. The greater the temperature deviation amount, the greater the first operating frequency, and the greater the first opening degree of the electronic expansion valve.
And step S404, controlling the compressor 4 to operate according to the first operation frequency, and controlling the electronic expansion valve to operate according to the first opening degree.
It should be noted that, the sequence of the steps S401 to S404 and the steps S20 to S30 may not be limited in detail, and may be executed sequentially or synchronously according to actual requirements.
Through the above steps S401 to S404, when the target operation mode is the first mode, the temperature of the indoor environment can be rapidly adjusted to the comfortable temperature of the user through the cooperation of the compressor and the electronic expansion valve.
Further, based on the above embodiments, a method for controlling an air conditioner according to the present application is provided. In this embodiment, referring to fig. 8, after step S10, the method further includes:
step S410, when the target operation mode is a second mode, acquiring the current second environment humidity;
the second ambient humidity is acquired in the same manner as the first ambient humidity in the above-described embodiment. Wherein, when there is no selection operation by the user, the second ambient humidity and the first ambient humidity can be obtained simultaneously.
Step S420, determining a humidity deviation amount between the second ambient humidity and a set humidity;
specifically, the humidity deviation amount is the second ambient humidity-the set humidity. The set humidity here is the same humidity as that in the above-described embodiment.
Step S430, determining a second operation frequency of the compressor 4 and a second opening degree of the electronic expansion valve according to the humidity deviation amount;
different humidity deviations correspond to different operating frequencies of the compressor 4 and the opening degree of the electronic expansion valve. The greater the amount of humidity deviation, the greater the second operating frequency, and the greater the second opening degree of the electronic expansion valve.
And step S440, controlling the compressor 4 to operate according to the second operation frequency, and controlling the electronic expansion valve to operate according to the second opening degree.
It should be noted that, the sequence of the steps S410 to S440 and the steps S20 to S30 may not be limited in detail, and may be executed sequentially or synchronously according to actual requirements.
Through the above steps S410 to S440, when the target operation mode is the second mode, the humidity of the indoor environment can be rapidly adjusted to the comfortable humidity of the user through the cooperation of the compressor and the electronic expansion valve.
In addition, an embodiment of the present invention further provides a readable storage medium, where a control program of an air conditioner is stored on the readable storage medium, and when the control program of the air conditioner is executed by a processor, the relevant steps of any embodiment of the above control method of the air conditioner are implemented.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (16)

1. An air conditioner, characterized in that the air conditioner comprises:
the air conditioner comprises a shell, a first air duct and a second air duct, wherein the first air duct and the second air duct are isolated from each other;
the first heat exchange module is arranged in the first air duct and comprises a first heat exchanger and a second heat exchanger, the first heat exchanger is provided with a first refrigerant port and a second refrigerant port, and the second heat exchanger is provided with a third refrigerant port and a fourth refrigerant port;
the second heat exchange module is arranged in the second air duct and comprises a third heat exchanger and a fourth heat exchanger, the third heat exchanger is provided with a fifth refrigerant port and a sixth refrigerant port, and the fourth heat exchanger is provided with a seventh refrigerant port and an eighth refrigerant port;
one end of the throttling device is connected with the first refrigerant port, and the other end of the throttling device is connected with the fifth refrigerant port;
the compressor is provided with an exhaust port and a return port, the exhaust port is connected with the third refrigerant port, and the return port is connected with the seventh refrigerant port;
the second refrigerant port, the fourth refrigerant port, the sixth refrigerant port and the eighth refrigerant port are all connected with the refrigerant flow direction switching module, and the refrigerant flow direction switching module is used for switching the refrigerant flow directions in the first heat exchange module and the second heat exchange module so as to switch the first heat exchange module and the second heat exchange module between a first state and a second state;
the first state is a state in which the heat exchange states of the two heat exchangers in the first heat exchange module are the same and the heat exchange states of the two heat exchangers in the second heat exchange module are the same, and the second state is a state in which the heat exchange states of the two heat exchangers in at least one of the first heat exchange module and the second heat exchange module are different.
2. The air conditioner according to claim 1, wherein the refrigerant flow direction switching module is a four-way valve having a first port, a second port, a third port, and a fourth port, the second refrigerant port is connected to the first port, the fourth refrigerant port is connected to the second port, the sixth refrigerant port is connected to the third port, and the eighth refrigerant port is connected to the fourth port.
3. The air conditioner as claimed in claim 2, wherein the refrigerant flow direction switching module includes a first solenoid valve, a second solenoid valve, a third solenoid valve and a fourth solenoid valve, the first solenoid valve has a first port and a second port, the second solenoid valve has a third port and a fourth port, the third solenoid valve has a fifth port and a sixth port, and the fourth solenoid valve has a seventh port and an eighth port;
the first interface is connected with the fourth refrigerant port, the second interface is connected with the sixth refrigerant port, the third interface is connected with the second refrigerant port, the fourth interface is connected with the eighth refrigerant port, a refrigerant pipeline between the first interface and the fourth refrigerant port is connected with the fifth interface, a refrigerant pipeline between the second refrigerant port and the third interface is connected with the sixth interface, a refrigerant pipeline between the second interface and the sixth refrigerant port is connected with the seventh interface, and a refrigerant pipeline between the fourth interface and the eighth refrigerant port is connected with the eighth interface.
4. An air conditioner according to any one of claims 1 to 3, wherein the first heat exchanger and the second heat exchanger are arranged at intervals in the direction of airflow in the first air duct, and the third heat exchanger and the fourth heat exchanger are arranged at intervals in the direction of airflow in the second air duct.
5. The air conditioner according to any one of claims 1 to 3, further comprising a first centrifugal fan and a second centrifugal fan, wherein the first centrifugal fan is disposed in the first air duct, and the second centrifugal fan is disposed in the second air duct.
6. The air conditioner according to any one of claims 1 to 3, wherein the housing has first and second opposite sides, the first air duct has a first air inlet and a first air outlet communicating with an outside of the housing, the second air duct has a second air inlet and a second air outlet communicating with an outside of the housing, the first air inlet and the first air outlet are provided at the first side, and the second air inlet and the second air outlet are provided at the second side.
7. A control method of an air conditioner, based on the air conditioner as claimed in any one of claims 1 to 6, comprising the steps of:
acquiring a target operation mode of the air conditioner; the target operation mode is one of a first mode and a second mode;
determining control parameters of a refrigerant flow direction switching module according to the target operation mode;
controlling the refrigerant flow direction switching module to operate according to the control parameter so as to enable the first heat exchange module and the second heat exchange module to reach a target state corresponding to the target operation mode;
the target state corresponding to the first mode is a first state, the target state corresponding to the second mode is a second state, the first state is a state in which the heat exchange states of the two heat exchangers in the first heat exchange module are the same and the heat exchange states of the two heat exchangers in the second heat exchange module are the same, and the second state is a state in which the heat exchange states of the two heat exchangers in at least one of the first heat exchange module and the second heat exchange module are different.
8. The method as claimed in claim 7, wherein the refrigerant flow direction switching module is a four-way valve, and the step of determining the control parameter of the refrigerant flow direction switching module according to the target operation mode comprises:
when the target operation mode is the first mode, taking a first valve position as the control parameter;
when the target operation mode is the second mode, taking a second valve position as the control parameter;
the first valve position is a valve position in which a first valve port and a second valve port in the four-way valve are communicated, and a third valve port and a fourth valve port are communicated, and the second valve position is a valve position in which the first valve port and the fourth valve port in the four-way valve are communicated, and the second valve port and the third valve port are communicated.
9. The method as claimed in claim 7, wherein the refrigerant flow direction switching module includes a first solenoid valve, a second solenoid valve, a third solenoid valve and a fourth solenoid valve, and the step of determining the control parameter of the refrigerant flow direction switching module according to the target operation mode includes:
when the target operation mode is the first mode, taking the closing state of the first electromagnetic valve, the closing state of the second electromagnetic valve, the opening state of the third electromagnetic valve and the opening state of the fourth electromagnetic valve as the control parameters;
and when the target operation mode is the second mode, taking the opening state of the first electromagnetic valve, the opening state of the second electromagnetic valve, the closing state of the third electromagnetic valve and the closing state of the fourth electromagnetic valve as the control parameters.
10. The control method of an air conditioner according to claim 7, wherein the step of acquiring the target operation mode of the air conditioner comprises:
when the selection operation of the user about the operation mode exists, if the operation mode corresponding to the selection operation is a first mode, taking the first mode as the target operation mode;
and if the selected operation mode corresponding to the selection operation is a second mode, taking the second mode as the target operation mode.
11. The control method of an air conditioner according to claim 10, wherein the step of acquiring the target operation mode of the air conditioner comprises:
when the selection operation of the user about the running mode does not exist, acquiring a current first environment temperature and a current first environment humidity;
in the first mode and the second mode, one of the first ambient temperature and the first ambient humidity is selected as the target operation mode.
12. The control method of an air conditioner according to claim 11, wherein the selecting one of the first mode and the second mode as the target operation mode according to the first ambient temperature and the first ambient humidity comprises:
determining a temperature deviation rate between the first environment temperature and a set temperature, and determining a humidity deviation rate between the first environment humidity and the set humidity;
when the humidity deviation rate is smaller than the temperature deviation rate, taking the first mode as the target operation mode;
and when the humidity deviation rate is larger than the temperature deviation rate, taking the second mode as the target operation mode.
13. The method of controlling an air conditioner according to any one of claims 7 to 12, wherein the throttling device is an electronic expansion valve, and the step of obtaining the target operation mode of the air conditioner is followed by further comprising:
when the target operation mode is the first mode, acquiring a current second environment temperature;
determining a temperature deviation amount between the second ambient temperature and a set temperature;
determining a first operating frequency of a compressor and a first opening degree of the electronic expansion valve according to the temperature deviation amount;
and controlling the compressor to operate according to the first operation frequency, and controlling the electronic expansion valve to operate according to the first opening degree.
14. The method of controlling an air conditioner according to any one of claims 7 to 12, wherein the throttling device is an electronic expansion valve, and the step of obtaining the target operation mode of the air conditioner is followed by further comprising:
when the target operation mode is a second mode, acquiring current second ambient humidity;
determining a humidity deviation amount between the second ambient humidity and a set humidity;
determining a second operation frequency of the compressor and a second opening degree of the electronic expansion valve according to the humidity deviation amount;
and controlling the compressor to operate according to the second operation frequency, and controlling the electronic expansion valve to operate according to the second opening degree.
15. A control apparatus of an air conditioner, comprising: a memory, a processor and a control program of an air conditioner stored on the memory and executable on the processor, the control program of the air conditioner implementing the steps of the control method of the air conditioner according to any one of claims 7 to 14 when executed by the processor.
16. A readable storage medium, characterized in that the readable storage medium has stored thereon a control program of an air conditioner, which when executed by a processor, implements the steps of the control method of the air conditioner according to any one of claims 7 to 14.
CN202010937227.4A 2020-09-08 2020-09-08 Air conditioner, control method and device thereof and readable storage medium Pending CN114151940A (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002267204A (en) * 2001-03-08 2002-09-18 Mitsubishi Electric Corp Dehumidifier
JP2004332949A (en) * 2003-04-30 2004-11-25 Daikin Ind Ltd Humidity conditioning device
CN1934393A (en) * 2004-03-31 2007-03-21 大金工业株式会社 Humidity controller
JP2007212108A (en) * 2006-02-13 2007-08-23 Toshiba Kyaria Kk Air conditioner
WO2012086746A1 (en) * 2010-12-24 2012-06-28 ダイキン工業株式会社 Flow path switching valve and air conditioner with same
CN106288178A (en) * 2016-08-12 2017-01-04 青岛海尔空调器有限总公司 A kind of method utilizing temperature and humidity in double back air compressor control room and air-conditioning
CN109737636A (en) * 2019-03-01 2019-05-10 珠海格力电器股份有限公司 A kind of heat pump system, control method and heat pump drying device
CN110194045A (en) * 2019-06-05 2019-09-03 天津商业大学 A kind of injection synergy electric vehicle heat pump system
CN210832267U (en) * 2019-10-28 2020-06-23 广东美的制冷设备有限公司 Air conditioner indoor unit and air conditioner

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002267204A (en) * 2001-03-08 2002-09-18 Mitsubishi Electric Corp Dehumidifier
JP2004332949A (en) * 2003-04-30 2004-11-25 Daikin Ind Ltd Humidity conditioning device
CN1934393A (en) * 2004-03-31 2007-03-21 大金工业株式会社 Humidity controller
JP2007212108A (en) * 2006-02-13 2007-08-23 Toshiba Kyaria Kk Air conditioner
WO2012086746A1 (en) * 2010-12-24 2012-06-28 ダイキン工業株式会社 Flow path switching valve and air conditioner with same
CN106288178A (en) * 2016-08-12 2017-01-04 青岛海尔空调器有限总公司 A kind of method utilizing temperature and humidity in double back air compressor control room and air-conditioning
CN109737636A (en) * 2019-03-01 2019-05-10 珠海格力电器股份有限公司 A kind of heat pump system, control method and heat pump drying device
CN110194045A (en) * 2019-06-05 2019-09-03 天津商业大学 A kind of injection synergy electric vehicle heat pump system
CN210832267U (en) * 2019-10-28 2020-06-23 广东美的制冷设备有限公司 Air conditioner indoor unit and air conditioner

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