CN112710064A - Multi-split air conditioner, control method thereof and computer readable storage medium - Google Patents
Multi-split air conditioner, control method thereof and computer readable storage medium Download PDFInfo
- Publication number
- CN112710064A CN112710064A CN201911027383.0A CN201911027383A CN112710064A CN 112710064 A CN112710064 A CN 112710064A CN 201911027383 A CN201911027383 A CN 201911027383A CN 112710064 A CN112710064 A CN 112710064A
- Authority
- CN
- China
- Prior art keywords
- temperature
- indoor
- air conditioner
- split air
- indoor unit
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method of a multi-split air conditioner, the multi-split air conditioner comprises an outdoor unit and a plurality of refrigerant pipelines connected in parallel, an electronic expansion valve, an indoor unit and a regulating valve are sequentially connected in series on the refrigerant pipelines, and the control method of the multi-split air conditioner comprises the following steps: acquiring the indoor temperature of a target indoor unit action space in a temperature reaching state in a heating mode, wherein a regulating valve corresponding to the target indoor unit in the temperature reaching state is closed; and when the indoor temperature is lower than the set temperature corresponding to the target indoor unit, increasing the opening of the regulating valve. The invention also discloses a multi-split air conditioner and a computer readable storage medium. The temperature of the room where the indoor unit is located is stable.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a multi-split air conditioner, a control method of the multi-split air conditioner and a computer readable storage medium.
Background
The multi-split air conditioner includes an outdoor unit and a plurality of indoor units. When a plurality of indoor units operate, the multi-split air conditioning system can determine whether each indoor unit meets a temperature reaching condition, if the indoor units meet the temperature reaching condition, the indoor units can enter the temperature reaching state to stop outputting heat or cold, and therefore the room where the indoor units are located is prevented from being too cold or too hot.
However, the indoor unit in the warm state stops outputting heat, so that the temperature in the room rises greatly, and the temperature in the room is unstable.
Disclosure of Invention
The invention mainly aims to provide a multi-split air conditioner, a control method thereof and a computer readable storage medium, and aims to solve the problem that the temperature of a room where an indoor unit reaching a temperature state is located is unstable.
In order to achieve the purpose, the invention provides a control method of a multi-split air conditioner, wherein the multi-split air conditioner comprises an outdoor unit and a plurality of refrigerant pipelines connected in parallel, and the refrigerant pipelines are connected between a four-way valve of the outdoor unit and the outdoor unit; the control method of the multi-split air conditioner comprises the following steps:
acquiring the indoor temperature of a target indoor unit action space in a temperature reaching state in a heating mode, wherein a regulating valve corresponding to the target indoor unit in the temperature reaching state is closed;
and when the indoor temperature is lower than the set temperature corresponding to the target indoor unit, increasing the opening of the regulating valve.
In one embodiment, the step of increasing the opening degree of the regulating valve includes:
determining a first reference parameter corresponding to the indoor temperature, and determining a target opening according to the first reference parameter, wherein the first reference parameter comprises a first temperature interval where the indoor temperature is located or a temperature variation of the indoor temperature within a preset time period;
increasing the opening degree of the regulating valve to the target opening degree.
In one embodiment, the regulating valve is a non-opening-adjustable valve, and the step of increasing the opening of the regulating valve includes:
and opening the regulating valve and reducing the opening degree of an electronic expansion valve of the target indoor unit.
In an embodiment, after the step of obtaining the indoor temperature of the target indoor unit operating space in the heating mode, the method further includes:
and when the indoor temperature is greater than or equal to the set temperature corresponding to the target indoor unit, or the difference between the set temperature and the indoor temperature is smaller than a preset difference, increasing the opening degree of an electronic expansion valve of the target indoor unit.
In an embodiment, after the step of obtaining the indoor temperature of the target indoor unit operating space in the heating mode, the method further includes:
the step of increasing the opening degree of the electronic expansion valve of the target indoor unit includes:
determining a second reference parameter corresponding to the indoor temperature, wherein the second reference parameter includes a second temperature interval where the indoor temperature is located or a temperature variation of the indoor temperature within a preset time period;
determining an opening increment value according to the second reference parameter;
and increasing the opening degree of an electronic expansion valve of the target indoor unit according to the opening degree increment value.
In an embodiment, after the step of obtaining the indoor temperature of the target indoor unit operating space in the heating mode, the method further includes:
after the step of increasing the opening degree of the regulating valve, the method further includes:
and adjusting the rotating speed of an indoor fan of the target indoor unit according to the indoor temperature, wherein the indoor temperature and the adjusted rotating speed of the indoor fan are in a negative correlation relationship.
In an embodiment, after the step of obtaining the indoor temperature of the target indoor unit operating space in the heating mode, the method further includes:
and reducing the opening of the regulating valve of the indoor unit to zero according to a preset opening reduction rate so as to enable the indoor unit to be in a temperature reaching state.
In an embodiment, after the step of obtaining the indoor temperature of the target indoor unit operating space in the heating mode, the method further includes:
after the step of obtaining the indoor temperature of the target indoor unit action space in the temperature reaching state in the heating mode, the method further comprises the following steps:
when the indoor temperature is lower than the set temperature and the difference between the set temperature and the indoor temperature is greater than a preset difference, executing the step of increasing the opening degree of the regulating valve;
or, when the indoor temperature is less than the set temperature, and the temperature variation of the indoor temperature in the preset time period is greater than the preset temperature variation, the step of increasing the opening degree of the regulating valve is executed.
In order to achieve the above object, the present invention further provides a multi-split air conditioner, which includes an outdoor unit, a plurality of refrigerant pipelines connected in parallel, a memory, and a processor, wherein the refrigerant pipelines are connected between a four-way valve of the outdoor unit and the outdoor unit; the control method of the multi-split air conditioner comprises the steps that electronic expansion valves, indoor units and adjusting valves are sequentially connected in series on a refrigerant pipeline, each adjusting valve and each electronic expansion valve are connected with a processor, a control program of the multi-split air conditioner capable of running on the processor is stored in a memory, and when the control program of the multi-split air conditioner is executed by the processor, each step of the control method of the multi-split air conditioner is achieved.
To achieve the above object, the present invention also provides a computer-readable storage medium storing a control program of a multi-split air conditioner, which when executed by a processor, implements the steps of the control method of the multi-split air conditioner as described above.
The invention provides a multi-split air conditioner, a control method thereof and a computer readable storage medium. And under the heating mode of the multi-split air conditioner, closing the regulating valve of the target indoor unit in the temperature reaching state, and increasing the opening degree of the closed regulating valve when the indoor temperature of the acting space of the target indoor unit is lower than the set temperature. The indoor temperature of the indoor unit in the temperature reaching state is lower than the set temperature, which can indicate that the temperature of the room rises greatly, and the indoor unit opens the closed regulating valve, so that the indoor unit outputs heat, the temperature rise of the room where the indoor unit is located is inhibited, and the indoor unit stably maintains the temperature of the room.
Drawings
Fig. 1 is a schematic structural view of a multi-split air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a hardware architecture of a multi-split air conditioner according to an embodiment of the present invention
Fig. 3 is a schematic flowchart illustrating a control method of a multi-split air conditioner according to a first embodiment of the present invention;
fig. 4 is a flowchart illustrating a control method of a multi-split air conditioner according to a second embodiment of the present invention;
FIG. 5 is a flowchart illustrating a control method of a multi-split air conditioner according to a third embodiment of the present invention;
FIG. 6 is a detailed flowchart of step S30 in FIG. 5;
fig. 7 is a flowchart illustrating a control method of a multi-split air conditioner according to a fourth embodiment of the present invention.
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 main solution of the embodiment of the invention is as follows: the multi-split air conditioner comprises an outdoor unit and a plurality of refrigerant pipelines connected in parallel, wherein the refrigerant pipelines are connected between a four-way valve of the outdoor unit and an outdoor heat exchanger, and an electronic expansion valve, an indoor unit and a regulating valve are sequentially connected in series on the refrigerant pipelines; acquiring the indoor temperature of a target indoor unit action space in a temperature reaching state in a heating mode, wherein a regulating valve corresponding to the target indoor unit in the temperature reaching state is closed; and when the indoor temperature is lower than the depth temperature corresponding to the target indoor unit, increasing the opening degree of the regulating valve.
The indoor temperature of the indoor unit in the temperature reaching state is lower than the set temperature, which can indicate that the temperature of the room rises greatly, and the indoor unit opens the closed regulating valve, so that the indoor unit outputs heat, the temperature rise of the room where the indoor unit is located is inhibited, and the indoor unit stably maintains the temperature of the room.
As an implementation, the multi-split air conditioner may be as shown in fig. 1.
Referring to fig. 1, the multi-split air conditioner includes an outdoor unit 8, a plurality of refrigerant pipes connected in parallel, and an indoor unit 10, and the indoor unit 10 includes a plurality of indoor units, such as an indoor unit 16, an indoor unit 17, and an indoor unit 18. The refrigerant pipeline is connected between the four-way valve of the outdoor unit and the outdoor unit, namely one end of the refrigerant pipeline is connected with the port 4 of the four-way valve, and the other end of the refrigerant pipeline is connected with the outdoor unit. The refrigerant pipeline is connected in series with an electronic expansion valve, an indoor unit and an adjusting valve in sequence. Referring to fig. 1, the electronic expansion valve 15, the indoor unit 18 and the regulating valve 21 are connected in series to a refrigerant pipe, the electronic expansion valve 14, the indoor unit 17 and the regulating valve 20 are connected in series to a refrigerant pipe, and the electronic expansion valve 13, the indoor unit 16 and the regulating valve 19 are connected in series to a refrigerant pipe. The regulating valve can be an electromagnetic valve with non-adjustable opening degree or a ball valve with adjustable opening degree.
As can be seen from fig. 1, the electronic expansion valves 13, 14, and 15 constitute the throttle assembly 9, and the regulator valves 19, 20, and 21 are solenoid valve assemblies. The compressor 1 is connected to a port 7 of the four-way valve and a gas-liquid separator 12, respectively, and the gas-liquid separator 12 is connected to a port 5 of the four-way valve. When the multi-split air conditioner operates in the cooling mode or the dehumidification mode, it is assumed that the indoor units 16, 17, and 18 are in an operating state; the refrigerant in the compressor 1 is discharged from the compressor discharge port 2 to the port 7 of the four-way valve to flow from the port 6 of the four-way valve into the outdoor heat exchanger in the outdoor unit 8, then flows from the outdoor heat exchanger to the electronic expansion valves 13, 14, and 15 to be branched into the indoor heat exchangers of the indoor units 16, 17, and 18, and finally flows from the three indoor heat exchangers to the port 4 of the four-way valve through the regulating valves 19, 20, and 21 to flow from the port 5 of the four-way valve to the gas-liquid separator 12, and finally returns from the gas-liquid separator 12 to the compressor 1.
When the multi-split air conditioner operates in the heating mode, it is assumed that the indoor units 16, 17, and 18 are in an operating state; the refrigerant in the compressor 1 is discharged from the compressor discharge port 2 to the port 7 of the four-way valve to flow from the port 4 of the four-way valve into the regulating valves 19, 20 and 21 to flow to the indoor heat exchangers of the indoor units 16, 17 and 18 through the solenoid valve assembly 11, the refrigerant in each indoor heat exchanger enters the outdoor heat exchanger of the outdoor unit 8 again from the electronic expansion valves 13, 14 and 15, and the refrigerant flows from the outdoor heat exchanger to the port 6 of the four-way valve to be delivered from the port 5 of the four-way valve to the gas-liquid separator 12, so that the refrigerant finally returns to the compressor 1 from the gas-liquid separator 12.
Referring to fig. 2, the multi-split air conditioner further includes: the processor 101, for example, a CPU, a memory 102, and a communication bus 103, the processor 101 is connected to the valves of the indoor units in communication. Wherein a communication bus 103 is used for enabling the connection communication between these components.
The memory 102 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). As shown in fig. 1, a control program of the multi-split air conditioner may be included in the memory 103, which is a kind of computer storage medium; and the processor 101 may be configured to call up a control program of the multi-split air conditioner stored in the memory 102 and perform the following operations:
acquiring the indoor temperature of a target indoor unit action space in a temperature reaching state in a heating mode, wherein a regulating valve corresponding to the target indoor unit in the temperature reaching state is closed;
and when the indoor temperature is lower than the set temperature corresponding to the target indoor unit, increasing the opening of the regulating valve.
In an embodiment, the processor 101 may be configured to call a control program of the multi-split air conditioner stored in the memory 102, and perform the following operations:
determining a first reference parameter corresponding to the indoor temperature, and determining a target opening according to the first reference parameter, wherein the first reference parameter comprises a first temperature interval where the indoor temperature is located or a temperature variation of the indoor temperature within a preset time period;
increasing the opening degree of the regulating valve to the target opening degree.
In an embodiment, the processor 101 may be configured to call a control program of the multi-split air conditioner stored in the memory 102, and perform the following operations:
and opening the regulating valve and reducing the opening degree of an electronic expansion valve of the target indoor unit.
In an embodiment, the processor 101 may be configured to call a control program of the multi-split air conditioner stored in the memory 102, and perform the following operations:
and when the indoor temperature is greater than or equal to the set temperature corresponding to the target indoor unit, or the difference between the set temperature and the indoor temperature is smaller than a preset difference, increasing the opening degree of an electronic expansion valve of the target indoor unit.
In an embodiment, the processor 101 may be configured to call a control program of the multi-split air conditioner stored in the memory 102, and perform the following operations:
the step of increasing the opening degree of the electronic expansion valve of the target indoor unit includes:
determining a second reference parameter corresponding to the indoor temperature, wherein the second reference parameter includes a second temperature interval where the indoor temperature is located or a temperature variation of the indoor temperature within a preset time period;
determining an opening increment value according to the second reference parameter;
and increasing the opening degree of an electronic expansion valve of the target indoor unit according to the opening degree increment value.
In an embodiment, the processor 101 may be configured to call a control program of the multi-split air conditioner stored in the memory 102, and perform the following operations:
after the step of increasing the opening degree of the regulating valve, the method further includes:
and adjusting the rotating speed of an indoor fan of the target indoor unit according to the indoor temperature, wherein the indoor temperature and the adjusted rotating speed of the indoor fan are in a negative correlation relationship.
In an embodiment, the processor 101 may be configured to call a control program of the multi-split air conditioner stored in the memory 102, and perform the following operations:
and reducing the opening of the regulating valve of the indoor unit to zero according to a preset opening reduction rate so as to enable the indoor unit to be in a temperature reaching state.
In an embodiment, the processor 101 may be configured to call a control program of the multi-split air conditioner stored in the memory 102, and perform the following operations:
after the step of obtaining the indoor temperature of the target indoor unit action space in the temperature reaching state in the heating mode, the method further comprises the following steps:
when the indoor temperature is lower than the set temperature and the difference between the set temperature and the indoor temperature is greater than a preset difference, executing the step of increasing the opening degree of the regulating valve;
or, when the indoor temperature is less than the set temperature, and the temperature variation of the indoor temperature in the preset time period is greater than the preset temperature variation, the step of increasing the opening degree of the regulating valve is executed.
According to the scheme, the multi-split air conditioner comprises an outdoor unit and a plurality of refrigerant pipelines connected in parallel, the refrigerant pipelines are connected between a four-way valve of the outdoor unit and an outdoor heat exchanger, and an electronic expansion valve, an indoor unit and a regulating valve are sequentially connected in series on the refrigerant pipelines. And under the heating mode of the multi-split air conditioner, closing the regulating valve of the target indoor unit in the temperature reaching state, and increasing the opening degree of the closed regulating valve when the indoor temperature of the acting space of the target indoor unit is lower than the set temperature. The indoor temperature of the indoor unit in the temperature reaching state is lower than the set temperature, which can indicate that the temperature of the room rises greatly, and the indoor unit opens the closed regulating valve, so that the indoor unit outputs heat, the temperature rise of the room where the indoor unit is located is inhibited, and the indoor unit stably maintains the temperature of the room.
Based on the hardware framework of the multi-split air conditioner, the embodiment of the control method of the multi-split air conditioner is provided.
Referring to fig. 3, fig. 3 is a first embodiment of a control method of a multi-split air conditioner according to the present invention, the control method of the multi-split air conditioner including the steps of:
step S10, acquiring the indoor temperature of the target indoor unit action space in the temperature reaching state in the heating mode, wherein the regulating valve corresponding to the target indoor unit in the temperature reaching state is closed;
in this embodiment, the execution main body is an outdoor unit or any indoor unit in a multi-split air conditioner. And each indoor unit is provided with a temperature sensor for detecting the indoor temperature. After the multi-split air conditioner is operated, one or more indoor units are in an operating state, each operating indoor unit acquires corresponding indoor temperature and sends the indoor temperature to a control center, the control center can be any indoor unit, and the control center can also be an outdoor unit. It should be noted that the regulating valve and the electronic expansion valve corresponding to the operating indoor unit are both in an open state, so that the refrigerant flows through the indoor heat exchanger of the operating indoor unit, and the operating indoor unit outputs heat.
The control center stores the set temperature corresponding to each running indoor unit, and whether the indoor unit is in the temperature reaching condition can be judged through the set temperature of the running indoor unit and the indoor temperature.
Specifically, when the multi-split air conditioner operates in the heating mode, the control center judges whether the indoor temperature reaches the set temperature, and if so, the control center judges that the indoor unit corresponding to the indoor temperature enters the temperature reaching state, that is, the indoor temperature reaches the set temperature, and the indoor unit meets the temperature reaching condition. Or, the control center calculates a difference between the set temperature and the indoor temperature, and if the difference is smaller than a preset difference, it may be determined that the indoor temperature of the acting space of the indoor unit reaches the set temperature, that is, the indoor unit satisfies the temperature reaching condition, where the preset difference may be any suitable value, for example, 2 ℃.
And the control center determines the indoor unit meeting the temperature reaching condition and takes the indoor unit as a target indoor unit. The target indoor unit may be one or more. And after the target indoor unit is determined, closing a valve on a refrigerant pipeline for conveying the refrigerant to the target indoor unit. Specifically, when the mode of the operation of the multi-split air conditioner is the heating mode, the closed regulating valve is closed, so that the refrigerant in the indoor unit flows out of the electronic expansion valve from the indoor heat exchanger and then flows back to the gas-liquid separator, and the refrigerant is prevented from being accumulated in the indoor heat exchanger. And when the multi-split air conditioner operates in a cooling mode or a dehumidification mode, closing the electronic expansion valve of the target indoor unit. It should be noted that, when the regulating valve of the target indoor unit is closed, the electronic expansion valve is still in an open state and is not processed; when the electronic expansion valve of the target indoor unit is closed, the regulating valve is still in an open state and is not processed; therefore, the refrigerant in the indoor heat exchanger of the indoor unit flows back to the gas-liquid separator, and the problem that the refrigerating effect or the heating effect of other running indoor units is poor due to the fact that the multi-split air conditioner is lack of the refrigerant is avoided.
The control center can acquire the indoor temperature of the target indoor unit acting space in real time and judge whether the indoor temperature meets the preset condition or not. The indoor temperature satisfying the preset condition is related to the mode of the operation of the multi-split air conditioner.
Specifically, in the heating mode of the multi-split air conditioner, if the indoor temperature is lower than the set temperature, it is determined that the indoor temperature meets the preset condition.
Step S20, when the indoor temperature is lower than the set temperature corresponding to the target indoor unit, the opening degree of the regulating valve is increased;
when the indoor temperature is lower than the set temperature, the temperature of the room where the target indoor unit is located rises, and at the moment, the target indoor unit needs to increase the output of heat so as to avoid indoor temperature return. In contrast, the target indoor unit increases the regulating valve, i.e., opens the regulating valve to a preset opening, so that the target indoor unit outputs heat.
In the technical scheme provided by this embodiment, the multi-split air conditioner includes an outdoor unit, a plurality of refrigerant pipelines connected in parallel, a memory, and a processor, wherein the refrigerant pipelines are connected between a four-way valve of the outdoor unit and the outdoor unit; the control method of the multi-split air conditioner comprises the steps that electronic expansion valves, indoor units and adjusting valves are sequentially connected in series on a refrigerant pipeline, each adjusting valve and each electronic expansion valve are connected with a processor, a control program of the multi-split air conditioner capable of running on the processor is stored in a memory, and when the control program of the multi-split air conditioner is executed by the processor, each step of the control method of the multi-split air conditioner is achieved.
In one embodiment, in the heating mode of the multi-split air conditioner, if the indoor temperature is lower than the set temperature and the temperature variation of the indoor temperature in the preset time period is greater than the preset temperature variation, the opening degree of the adjustment is increased, and the preset temperature variation is any suitable value, for example, 0.5 ℃/min. The predetermined time period may be any suitable value, such as 1 min. The temperature variation represents the indoor temperature rise rate, and when the temperature variation is larger than the preset temperature variation, the indoor temperature rise rate is larger, so that the opening degree of the regulating valve needs to be increased, and heat is output. That is, when the target indoor unit detects that the indoor temperature rise speed is high, the opening degree of the regulating valve is increased to increase the heat output.
In addition, if the indoor temperature is lower than the set temperature and the indoor temperature are lower than the preset difference value, the adjusting opening degree is increased. It should be noted that the preset difference (the second preset difference) is smaller than the preset difference (the first preset difference) under the temperature reaching condition, that is, the target indoor unit is still in the temperature reaching state. That is, when the target indoor unit detects that the indoor temperature is low and the target indoor unit does not exit from the temperature-reaching state, the output of heat is increased to suppress the indoor temperature from rising again.
Referring to fig. 4, fig. 4 is a second embodiment of a control method of a multi-split air conditioner according to the present invention, and based on the first embodiment, the step S20 includes:
step S21, determining a first reference parameter corresponding to the indoor temperature, and determining a target opening degree according to the first reference parameter, where the first reference parameter includes a first temperature interval in which the indoor temperature is located or a temperature variation of the indoor temperature within a preset time period;
and a step S22 of adjusting the opening degree of the regulating valve to the target opening degree.
In this embodiment, the multi-split air conditioner determines the target opening of the target valve according to the indoor temperature, so that the target indoor unit outputs appropriate heat, and therefore the indoor temperature cannot rise back too fast, and overheating or overcooling of the indoor environment cannot be caused.
Specifically, the opening degree of the regulating valve after the opening degree is adjusted can reflect the heat currently output by the target indoor unit, that is, the opening degree of the regulating valve after the adjustment has a certain relationship with the heat output by the air conditioner. In this regard, the mapping relationship between the opening degree and the output heat is tested. The heat quantity can be determined by the temperature variation of the indoor temperature within a preset time period or the first temperature interval of the indoor temperature, and the preset time period can be any suitable value, for example, 1 min. The temperature variation reflects the temperature rise speed of the room where the target indoor unit is located, and if the temperature variation is large, the temperature rise speed in the room is high, so that the target indoor unit needs to output more heat to inhibit the temperature rise speed in the room; if the temperature variation is small, the temperature rise rate in the room is low, and the target indoor unit can output less heat.
In addition, the temperature interval in which the indoor temperature is located can also indicate the temperature rising speed in the room, and any temperature in the temperature interval can be set to be smaller than the set temperature in the multi-split air conditioner heating process. That is, when the multi-split air conditioner heats, the temperature in each temperature interval is less than the set temperature. Therefore, the larger the absolute value of the difference between the minimum temperature and the set temperature in the temperature range in which the indoor temperature is located, the larger the temperature rise rate in the room is, and the more heat the target indoor unit needs to output.
The multi-split air conditioner acquires a first reference parameter, wherein the first reference parameter comprises a first temperature interval where the indoor temperature is located or the temperature variation of the indoor temperature in a preset time period. And determining the heat quantity to be output according to the first reference parameter, and finally determining the opening according to the mapping relation and the determined heat quantity. The determined opening degree is the target opening degree. It should be noted that the determined amount of heat can be characterized by a temperature adjustment value.
After the target opening degree is determined, the multi-split air conditioner controls the opening degree of the regulating valve to be adjusted to the target opening degree.
When the target indoor unit enters a temperature reaching state, the regulating valve is closed, and the opening degree of the electronic expansion valve which is not closed is not adjusted. When the target indoor unit does not enter the temperature reaching state, more heat needs to be output, and the opening degree of the electronic expansion valve which is not closed is larger. Therefore, the target indoor unit can be an electronic expansion valve in which the target opening degree of the control valve is smaller than or equal to the unadjusted opening degree by simply increasing the opening degree of the closed control valve to the target opening degree.
In the technical scheme provided by this embodiment, the multi-split air conditioner determines a first reference parameter corresponding to the indoor temperature, and determines a target opening according to the first reference parameter, so that the opening of the regulating valve is adjusted to the target opening, and the situation that the fluctuation range of the indoor temperature of the room where the target indoor unit is located is large is avoided.
In one embodiment, the regulating valve is a non-opening-adjustable valve. When the multi-split air conditioner operates in a heating mode, the regulating valve is closed when the target indoor unit in the temperature state is reached. Therefore, after the target indoor unit opens the closed regulating valve, the target indoor unit needs to reduce the opening degree of the electronic expansion valve, that is, the target indoor unit outputs less heat, so as to prevent the indoor temperature from rising too fast and affecting the indoor temperature stability. . The reduced opening degree of the electronic expansion valve may be a target opening degree, and the determination of the target opening degree may refer to the determination of the target opening degree of the regulating valve, which is not described herein again.
Referring to fig. 5, fig. 5 is a third embodiment of the control method of the multi-split air conditioner according to the present invention, and based on the first or second embodiment, after step S10, the method further includes:
step S30, when the indoor temperature is greater than or equal to the set temperature corresponding to the target indoor unit, or the difference between the set temperature and the indoor temperature is less than a preset difference, increasing the opening degree of the electronic expansion valve that is not closed by the target indoor unit.
In this embodiment, when the indoor temperature is greater than or equal to the set temperature corresponding to the target indoor unit, it indicates that the temperature in the room where the target indoor unit is located is slightly higher, and the target indoor unit does not need to output heat to the outside, and the electronic expansion valve that is not closed by the target indoor unit can be increased, so that the backflow rate of the refrigerant is increased, the multi-split air conditioner can obtain enough refrigerant quantity quickly, and the heating effect or the cooling effect of other operating indoor units is ensured.
Or the difference between the set temperature and the indoor temperature is smaller than the preset difference, the preset difference is a second preset difference, at the moment, the indoor temperature rises back to a small degree, and the electronic expansion valve which is not closed in the target indoor unit can be increased, so that the backflow rate of the refrigerant is increased, the multi-split air conditioner can obtain enough refrigerant quantity quickly, and the heating effect or the refrigerating effect of other running indoor units is guaranteed.
In the technical scheme provided by this embodiment, when the indoor temperature of the room in which the target indoor unit is located is greater than or equal to the set temperature, the opening degree of the electronic expansion valve that is not closed by the target indoor unit is increased, so as to accelerate the backflow rate of the refrigerant in the target indoor unit, so that the multi-split air conditioner can quickly obtain a sufficient amount of the refrigerant, and the heating effect or the cooling effect of other operating indoor units can be ensured.
Referring to fig. 6, fig. 6 is a detailed flowchart of step S30 in fig. 5, where the step S30 includes:
step S31, determining a second reference parameter corresponding to the indoor temperature, where the second reference parameter includes a second temperature interval where the indoor temperature is located or a temperature variation of the indoor temperature within a preset time period;
step S32, determining an opening increment value according to the second reference parameter;
step S33 is to increase the opening degree of the electronic expansion valve not closed by the target indoor unit, based on the opening degree increment value.
In this embodiment, when the difference between the set temperature and the indoor temperature is smaller than the preset difference, if the opening degree of the electronic expansion valve of the target indoor unit, which is not closed, is increased, it is necessary to prevent the target indoor unit from exiting the temperature-reaching state. That is, the priority of the target indoor unit in the temperature reaching state is greater than the reflux rate of the refrigerant in the target indoor unit. In this regard, the target indoor unit determines a second reference parameter, where the second reference parameter includes a second temperature interval where the indoor temperature is located or a temperature variation of the indoor temperature within a preset time period.
The target indoor unit can determine the maximum heat quantity which can be output by the target indoor unit according to the second temperature interval or the temperature variation. Thus, the opening degree increment value is determined according to the maximum heat allowed to be additionally output, and the opening degree of the electronic expansion valve which is not closed by the target indoor unit is increased according to the opening degree increment value. The larger the absolute value of the difference between the minimum temperature and the set temperature in the second temperature interval is, the smaller the maximum heat quantity is; the larger the temperature change amount, the smaller the maximum heat amount.
In the technical scheme provided by this embodiment, the multi-split air conditioner determines a second reference parameter corresponding to the indoor temperature, and then determines an opening increment value according to the second reference parameter, so as to increase the opening of the electronic expansion valve, which is not closed by the target indoor unit, according to the opening increment value, and on the premise that the target indoor unit increases the rate of refrigerant backflow, prevent the target indoor unit from exiting the temperature-reaching state.
In one embodiment, the multi-split air conditioner reduces the opening of the regulating valve of the indoor unit to zero according to a preset opening reduction rate, so that the indoor unit is in a temperature reaching state.
Specifically, when the target indoor unit in the heating mode enters a temperature-reaching state, the regulating valve needs to be closed. When the regulating valve is closed, the output of cold or heat of other indoor units which do not meet the temperature reaching state can be influenced. For example, in a multi-split air conditioning system, there are three running indoor units, one of which satisfies a temperature reaching condition, and when the electronic expansion valve or the regulating valve of the indoor unit is closed, the refrigerant that originally flows to the three indoor units changes to flow to two indoor units, so that the other two indoor units increase the heat output.
In contrast, in the present embodiment, the opening degree reduction amount is set for the adjustment valve, so that the adjustment valve is gradually closed, thereby avoiding that the instantaneous closing of the adjustment valve causes large cooling or heating fluctuation to other indoor units that do not satisfy the temperature reaching condition. The preset opening reduction rate is obtained when the opening reduction corresponds to the preset unit time, for example, the preset unit time is 0.1s, the opening reduction is 1 step, the preset opening reduction rate is 10 steps/second, and if the opening of the valve is 100 steps, the valve can be closed in 10 s.
In the technical scheme provided by the embodiment, the multi-split air conditioner gradually reduces by controlling the regulating valve of the indoor unit in the temperature reaching state, thereby slowing down the influence on the heat output of other indoor units and ensuring the stable operation of the multi-split air conditioner.
Referring to fig. 7, fig. 7 is a fourth embodiment of a control method of a multi-split air conditioner according to the present invention, and based on any of the above embodiments, after step S20, the method further includes:
and step S30, adjusting the rotating speed of the indoor fan of the target indoor unit according to the indoor temperature, wherein the indoor temperature and the rotating speed of the adjusted indoor fan are in a negative correlation relationship.
In this embodiment, the target indoor unit can output appropriate heat by adjusting the opening of the control valve and adjusting the rotation speed of the indoor fan, so as to suppress the rise back of the indoor temperature.
When the indoor temperature is lower, the indoor temperature is slightly lower, and at the moment, more heat needs to be output, so that the rotating speed of the indoor fan is higher. It can be understood that the indoor temperature and the rotating speed of the adjusted indoor fan are in a negative correlation relationship, that is, the larger the indoor temperature is, the smaller the rotating speed of the adjusted indoor fan is.
It should be noted that, after the opening of the regulating valve is increased, if the indoor temperature is still rising, the rotating speed of the indoor fan is increased, so that the target indoor unit outputs more heat; and when the indoor temperature is increased to some extent, the rotating speed of the indoor fan can be reduced.
In the technical scheme provided by this embodiment, after the opening of the regulating valve is increased, the target indoor unit adjusts the rotating speed of the indoor fan according to the indoor temperature, so that the target indoor unit outputs a proper amount of heat to maintain the indoor temperature stable.
The invention also provides a multi-split air conditioner, which comprises an outdoor unit, a plurality of refrigerant pipelines connected in parallel, a storage and a processor, wherein the refrigerant pipelines are connected between the four-way valve of the outdoor unit and the outdoor unit; the control method of the multi-split air conditioner comprises the steps that electronic expansion valves, indoor units and adjusting valves are sequentially connected in series on a refrigerant pipeline, each adjusting valve and each electronic expansion valve are connected with a processor, a control program of the multi-split air conditioner capable of running on the processor is stored in a memory, and when the control program of the multi-split air conditioner is executed by the processor, each step of the control method of the multi-split air conditioner is achieved.
The present invention also provides a computer-readable storage medium storing a control program of a multi-split air conditioner, which, when executed by a processor, implements the steps of the control method of the multi-split air conditioner as described in the above embodiments.
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.
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 apparatus 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 apparatus. 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 apparatus that comprises the element.
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 (10)
1. The control method of the multi-split air conditioner is characterized in that the multi-split air conditioner comprises an outdoor unit and a plurality of refrigerant pipelines connected in parallel, wherein the refrigerant pipelines are connected between a four-way valve of the outdoor unit and the outdoor unit; the control method of the multi-split air conditioner comprises the following steps:
acquiring the indoor temperature of a target indoor unit action space in a temperature reaching state in a heating mode, wherein a regulating valve corresponding to the target indoor unit in the temperature reaching state is closed;
and when the indoor temperature is lower than the set temperature corresponding to the target indoor unit, increasing the opening of the regulating valve.
2. The control method of a multi-split air conditioner as set forth in claim 1, wherein the step of increasing the opening degree of the adjusting valve comprises:
determining a first reference parameter corresponding to the indoor temperature, and determining a target opening according to the first reference parameter, wherein the first reference parameter comprises a first temperature interval where the indoor temperature is located or a temperature variation of the indoor temperature within a preset time period;
increasing the opening degree of the regulating valve to the target opening degree.
3. The method of controlling a multi-split air conditioner as set forth in claim 1, wherein the adjusting valve is a non-opening adjustable valve, and the step of increasing the opening of the adjusting valve comprises:
and opening the regulating valve and reducing the opening degree of an electronic expansion valve of the target indoor unit.
4. The method for controlling a multi-split air conditioner as claimed in claim 1, wherein after the step of obtaining the indoor temperature of the target indoor unit operating space in the heating mode in the temperature reached state, the method further comprises:
and when the indoor temperature is greater than or equal to the set temperature corresponding to the target indoor unit, or the difference between the set temperature and the indoor temperature is smaller than a preset difference, increasing the opening degree of an electronic expansion valve of the target indoor unit.
5. The method of controlling a multi-split air conditioner as set forth in claim 4, wherein the step of increasing the opening degree of the electronic expansion valve of the target indoor unit comprises:
determining a second reference parameter corresponding to the indoor temperature, wherein the second reference parameter includes a second temperature interval where the indoor temperature is located or a temperature variation of the indoor temperature within a preset time period;
determining an opening increment value according to the second reference parameter;
and increasing the opening degree of an electronic expansion valve of the target indoor unit according to the opening degree increment value.
6. The method for controlling a multi-split air conditioner as set forth in claim 1, further comprising, after the step of increasing the opening degree of the adjusting valve:
and adjusting the rotating speed of an indoor fan of the target indoor unit according to the indoor temperature, wherein the indoor temperature and the adjusted rotating speed of the indoor fan are in a negative correlation relationship.
7. The method of controlling a multi-split air conditioner as claimed in claim 1, wherein the opening degree of the adjusting valve of the indoor unit is decreased to zero at a preset opening degree decreasing rate to allow the indoor unit to be in a temperature-reached state.
8. The method for controlling a multi-split air conditioner as claimed in any one of claims 1 to 7, wherein the step of obtaining the indoor temperature of the target indoor unit operating space in the heating mode in the temperature reached state further comprises, after the step of obtaining the indoor temperature of the target indoor unit operating space in the heating mode:
when the indoor temperature is lower than the set temperature and the difference between the set temperature and the indoor temperature is greater than a preset difference, executing the step of increasing the opening degree of the regulating valve;
or, when the indoor temperature is less than the set temperature, and the temperature variation of the indoor temperature in the preset time period is greater than the preset temperature variation, the step of increasing the opening degree of the regulating valve is executed.
9. The multi-split air conditioner is characterized by comprising an outdoor unit, a plurality of refrigerant pipelines connected in parallel, a storage and a processor, wherein the refrigerant pipelines are connected between a four-way valve of the outdoor unit and the outdoor unit; the control method of the multi-split air conditioner comprises the steps that electronic expansion valves, indoor units and adjusting valves are sequentially connected in series on the refrigerant pipeline, each adjusting valve and each electronic expansion valve are connected with the processor, a control program of the multi-split air conditioner capable of running on the processor is stored in the memory, and when the control program of the multi-split air conditioner is executed by the processor, each step of the control method of the multi-split air conditioner is achieved according to any one of claims 1-8.
10. A computer-readable storage medium storing a control program of a multi-split air conditioner, which when executed by a processor implements the steps of the control method of the multi-split air conditioner according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027383.0A CN112710064B (en) | 2019-10-24 | 2019-10-24 | Multi-split air conditioner, control method thereof and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027383.0A CN112710064B (en) | 2019-10-24 | 2019-10-24 | Multi-split air conditioner, control method thereof and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112710064A true CN112710064A (en) | 2021-04-27 |
| CN112710064B CN112710064B (en) | 2022-09-27 |
Family
ID=75541026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911027383.0A Active CN112710064B (en) | 2019-10-24 | 2019-10-24 | Multi-split air conditioner, control method thereof and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112710064B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531857A (en) * | 2021-07-20 | 2021-10-22 | 广东美的制冷设备有限公司 | Control method of multi-split air conditioner, multi-split air conditioner and storage medium |
| CN114353249A (en) * | 2021-12-09 | 2022-04-15 | 青岛海尔空调电子有限公司 | Control method and device for multi-split air conditioner and multi-split air conditioner |
| CN114484720A (en) * | 2022-01-17 | 2022-05-13 | 青岛海尔空调电子有限公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
| CN114838415A (en) * | 2022-03-11 | 2022-08-02 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner and air conditioner |
| WO2024021721A1 (en) * | 2022-07-28 | 2024-02-01 | 广东美的制冷设备有限公司 | Multi-split air conditioner control method, multi-split air conditioner, and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398446A (en) * | 2013-07-11 | 2013-11-20 | 四川长虹电器股份有限公司 | Method for improving heating and cooling effect of air-conditioner |
| CN107631436A (en) * | 2017-10-25 | 2018-01-26 | 广东美的暖通设备有限公司 | Control method and system of the multi-connected air conditioner device under cooling condition |
| CN107940826A (en) * | 2017-11-10 | 2018-04-20 | 广东美的暖通设备有限公司 | Multi-line system and its refrigerant distribution control method and device |
| CN108644983A (en) * | 2018-05-15 | 2018-10-12 | 广东Tcl智能暖通设备有限公司 | Multi-online air-conditioning system and its control method, control device |
| CN109751740A (en) * | 2018-12-12 | 2019-05-14 | 广东美的暖通设备有限公司 | For the control method of multi-gang air-conditioner, device, outdoor unit and multi-gang air-conditioner |
-
2019
- 2019-10-24 CN CN201911027383.0A patent/CN112710064B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398446A (en) * | 2013-07-11 | 2013-11-20 | 四川长虹电器股份有限公司 | Method for improving heating and cooling effect of air-conditioner |
| CN107631436A (en) * | 2017-10-25 | 2018-01-26 | 广东美的暖通设备有限公司 | Control method and system of the multi-connected air conditioner device under cooling condition |
| CN107940826A (en) * | 2017-11-10 | 2018-04-20 | 广东美的暖通设备有限公司 | Multi-line system and its refrigerant distribution control method and device |
| CN108644983A (en) * | 2018-05-15 | 2018-10-12 | 广东Tcl智能暖通设备有限公司 | Multi-online air-conditioning system and its control method, control device |
| CN109751740A (en) * | 2018-12-12 | 2019-05-14 | 广东美的暖通设备有限公司 | For the control method of multi-gang air-conditioner, device, outdoor unit and multi-gang air-conditioner |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531857A (en) * | 2021-07-20 | 2021-10-22 | 广东美的制冷设备有限公司 | Control method of multi-split air conditioner, multi-split air conditioner and storage medium |
| CN113531857B (en) * | 2021-07-20 | 2022-09-20 | 广东美的制冷设备有限公司 | Control method of multi-split air conditioner, multi-split air conditioner and storage medium |
| CN114353249A (en) * | 2021-12-09 | 2022-04-15 | 青岛海尔空调电子有限公司 | Control method and device for multi-split air conditioner and multi-split air conditioner |
| CN114484720A (en) * | 2022-01-17 | 2022-05-13 | 青岛海尔空调电子有限公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
| CN114484720B (en) * | 2022-01-17 | 2024-06-07 | 青岛海尔空调电子有限公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
| CN114838415A (en) * | 2022-03-11 | 2022-08-02 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner and air conditioner |
| WO2024021721A1 (en) * | 2022-07-28 | 2024-02-01 | 广东美的制冷设备有限公司 | Multi-split air conditioner control method, multi-split air conditioner, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112710064B (en) | 2022-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112710064B (en) | Multi-split air conditioner, control method thereof and computer readable storage medium | |
| CN112797598B (en) | Indoor unit control method and device of multi-connected air conditioner and air conditioner | |
| CN103807970B (en) | control method and device for air conditioner | |
| CN113834150B (en) | Multi-online heat pump system, control method thereof and computer readable storage medium | |
| CN105222441A (en) | Control method and device of refrigeration system | |
| CN110553415B (en) | Air conditioner, control method of air conditioner and storage medium | |
| CN110186227B (en) | Control method for electronic expansion valve of indoor unit of air conditioner | |
| CN113531801B (en) | Control method and device of multi-connected air conditioner and readable storage medium | |
| CN109059334B (en) | Air conditioner, control method and device thereof and readable storage medium | |
| CN113188230A (en) | Expansion valve control method and device of multi-connected air conditioner and multi-connected air conditioner | |
| CN113390206B (en) | Air conditioner, air conditioner working method, computer device and storage medium | |
| CN112797581B (en) | Air conditioner temperature control method, air conditioner and computer readable storage medium | |
| CN111023457A (en) | Air conditioner defrosting method, air conditioner and storage medium | |
| CN108444079B (en) | Air conditioner, control method thereof, and computer-readable storage medium | |
| CN114440414A (en) | Multi-split air conditioner, control method thereof and computer storage medium | |
| CN114322249A (en) | Exhaust pressure adjusting method and device of air conditioner and air conditioner | |
| US20210025628A1 (en) | Method and Device For Controlling Pressure of Units with Height Drop, and Air Conditioner Device | |
| CN112710066B (en) | Multi-split air conditioner, control method thereof and computer readable storage medium | |
| CN106440227B (en) | Control method for controlling operation of air conditioner and air conditioner | |
| CN110594991B (en) | Heating bias flow control method and system for multi-split air conditioner and multi-split air conditioner system | |
| CN114216204B (en) | Expansion valve control method and device and air conditioner | |
| CN113405155A (en) | Expansion valve control method and device and multi-connected air conditioner | |
| CN111121242A (en) | Adjusting method and device for operating parameters of air conditioning system and air conditioning system | |
| CN111306695A (en) | Compressor load data optimization method and device, computer equipment and storage medium | |
| CN114322243B (en) | Air conditioner, control method thereof and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |