CN115614851B - Control method of multi-connected air conditioning unit, multi-connected air conditioning unit and computer readable storage medium - Google Patents
Control method of multi-connected air conditioning unit, multi-connected air conditioning unit and computer readable storage medium Download PDFInfo
- Publication number
- CN115614851B CN115614851B CN202211250865.4A CN202211250865A CN115614851B CN 115614851 B CN115614851 B CN 115614851B CN 202211250865 A CN202211250865 A CN 202211250865A CN 115614851 B CN115614851 B CN 115614851B
- Authority
- CN
- China
- Prior art keywords
- valve
- indoor unit
- air conditioning
- unit
- electronic expansion
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method of a multi-connected air conditioning unit, the multi-connected air conditioning unit and a computer readable storage medium. The multi-connected air conditioning unit can completely eliminate noise of the indoor machine electronic expansion valve from the source, and improve indoor temperature regulation efficiency, so that use comfort of users is improved.
Description
Technical Field
The invention relates to the technical field of multi-connected air conditioners, in particular to a control method of a multi-connected air conditioner unit, the multi-connected air conditioner unit and a computer readable storage medium.
Background
The multi-connected air conditioning unit is one type of central air conditioner, commonly called as 'one-to-many', and refers to a heat exchange circulation system formed by connecting two or more indoor units through a pipe, so that heat exchange air can be provided for one or a plurality of indoor areas. The multi-connected air conditioning unit has the advantages of energy conservation, reliable operation, good adaptability of the unit and the like, and is widely used.
Along with the increasing market scale of the multi-connected air conditioning unit, the multi-connected air conditioning unit is used more and more in home decoration, office buildings and office buildings, the requirements on mute performance of the areas are higher, and each indoor unit of the multi-connected air conditioning unit is provided with an indoor electronic expansion valve so as to control the flow of the refrigerant passing through each indoor unit, thereby controlling the indoor temperature. However, as the unit ages, the electronic expansion valve vibrates, the refrigerant flows and the pressure difference are caused, the electronic expansion valve of the indoor unit often has noise problems, and the use comfort of users is affected.
In order to reduce the noise of the electronic expansion valve of the indoor unit, the pressure sensor is additionally arranged in the existing multi-connected air conditioning unit, the pressure of the refrigerant pipe is compared with the pressure of the exhaust side of the compressor, meanwhile, the opening condition of the electronic expansion valve of the outdoor unit is observed, and the electronic expansion valve of the indoor unit, the standby indoor unit and the electronic expansion valve of the outdoor unit are adjusted, so that the noise of the refrigerant of the standby indoor unit is obviously reduced, and the time for reducing the noise of the refrigerant of the indoor unit is shortened. However, the existing multi-connected air conditioning unit can only reduce the noise of the electronic expansion valve of the indoor unit to a certain extent by adding the pressure sensor, and can not completely eliminate the noise of the electronic expansion valve of the indoor unit.
Disclosure of Invention
The first object of the present invention is to provide a multi-connected air conditioning unit capable of completely eliminating noise of an electronic expansion valve of an indoor unit from a source and improving indoor temperature adjustment efficiency, thereby improving use comfort of a user.
The second object of the invention is to provide a control method of the multi-connected air conditioning unit.
A third object of the present invention is to provide a computer readable storage medium embodying the control method of a multi-split air conditioner set as described above.
In order to achieve the first object of the invention, the invention provides a multi-connected air conditioning unit, which comprises an outdoor unit and at least two indoor units, wherein the first end of each indoor unit is communicated with the first end of the outdoor unit through a first pipeline, the first end of the outdoor unit is provided with a first electronic expansion valve and a second electronic expansion valve, the first end of each indoor unit is provided with a first on-off valve and a second on-off valve, the first pipeline comprises a first branch and a second branch, the first branch is communicated between the first electronic expansion valve and the first on-off valve, the first on-off valve is used for controlling the first branch to be communicated with or disconnected from the indoor unit, the second branch is communicated between the second electronic expansion valve and the second on-off valve, and the second on-off valve is used for controlling the second branch to be communicated with or disconnected from the indoor unit.
According to the scheme, in the running process of the multi-connected air conditioning unit, the indoor machine is started, one of the first on-off valve and the second on-off valve of the indoor machine is controlled to be opened according to the set temperature regulated by a user, and the other on-off valve is closed, so that one of the first branch and the second branch of the first pipeline is communicated with the indoor machine, the other branch is disconnected with the indoor machine, and the first electronic expansion valve of the outdoor machine and the second electronic expansion valve of the outdoor machine are selected to be communicated for indoor temperature regulation. Wherein the electronic expansion valve is used for controlling the flow of the refrigerant, the first electronic expansion valve and the second electronic expansion valve can be respectively suitable for different indoor set setting temperature ranges, so that the electronic expansion valve branch of the corresponding outdoor set can be automatically controlled and switched according to the indoor set setting temperature requirement, the starting indoor set can obtain the electronic expansion valve branch matched with the electronic expansion valve branch of the outdoor set, when the set temperatures of all the starting indoor units of the multi-connected air conditioning unit are different, even when the set temperatures of all the starting indoor units are larger, the all the starting indoor units can reach the set temperature regulation requirements respectively more quickly, so that the indoor temperature regulation efficiency of all the starting indoor units is improved, and the use comfort of users is further improved. In addition, the multi-connected air conditioning unit adopts the on-off valve to replace the electronic expansion valve of the indoor unit, so that the noise generated by the electronic expansion valve of the indoor unit can be completely eliminated from the source, and the use comfort of a user is improved.
The first end of the outdoor unit is further provided with a third electronic expansion valve, the first end of each indoor unit is further provided with a third on-off valve, the first pipeline further comprises a third branch, the third branch is communicated between the third electronic expansion valve and the third on-off valve, and the third on-off valve is used for controlling the third branch to be communicated with or disconnected from the indoor unit.
In a further scheme, the outdoor unit is further provided with a fourth electronic expansion valve, an outdoor heat exchanger of the outdoor unit is communicated with the first end of the fourth electronic expansion valve, and the first electronic expansion valve, the second electronic expansion valve and the third electronic expansion valve are connected in parallel and are communicated with the second end of the fourth electronic expansion valve.
In a further scheme, the first on-off valve is an electromagnetic two-way valve; and/or the second on-off valve is an electromagnetic two-way valve; and/or the third on-off valve is an electromagnetic two-way valve.
In a further scheme, a gas-liquid separator is arranged at the second end of the outdoor unit, the first end of the gas-liquid separator is communicated with the second end of each indoor unit through a second pipeline, and the compressor of the outdoor unit is communicated between the outdoor heat exchanger of the outdoor unit and the second end of the gas-liquid separator.
In order to achieve the second object of the present invention, the present invention provides a control method of a multi-split air conditioning unit, wherein the control method of the multi-split air conditioning unit includes: when the set temperature T0 of the indoor unit is confirmed to meet the first preset condition, the first on-off valve of the indoor unit is opened, and the second on-off valve of the indoor unit is closed; when the set temperature T0 of the indoor unit meets the second preset condition, opening a second on-off valve of the indoor unit and closing a first on-off valve of the indoor unit; any one of the first preset conditions is smaller than any one of the second preset conditions.
According to the control method of the multi-connected air conditioning unit, one of the first on-off valve and the second on-off valve of the indoor unit is controlled to be opened according to the preset condition met by the set temperature T0 of the indoor unit, the other on-off valve is closed, one of the first branch and the second branch of the first pipeline is communicated with the indoor unit, the other branch is disconnected from the indoor unit, and therefore one of the first electronic expansion valve and the second electronic expansion valve of the outdoor unit is selected to be communicated for indoor temperature adjustment. Therefore, the control method of the multi-connected air conditioning unit can automatically control and switch to the corresponding outdoor unit electronic expansion valve branch according to the set temperature T0 of the indoor unit of the multi-connected air conditioning unit, so that the indoor unit of the multi-connected air conditioning unit can acquire the outdoor unit electronic expansion valve branch matched with the indoor unit electronic expansion valve branch, and when the set temperatures of all the indoor units of the multi-connected air conditioning unit are different, even when the set temperatures of all the indoor units of the multi-connected air conditioning unit are larger, all the indoor units of the multi-connected air conditioning unit can reach the set temperature regulation requirements respectively more quickly, and therefore the indoor temperature regulation efficiency of all the indoor units of the multi-connected air conditioning unit is improved, and the use comfort of users is further improved.
The first end of the outdoor unit is further provided with a third electronic expansion valve, the first end of each indoor unit is further provided with a third on-off valve, the first pipeline further comprises a third branch, the third branch is communicated between the third electronic expansion valve and the third on-off valve, the third on-off valve is used for controlling the third branch to be communicated with or disconnected from the indoor unit, and the control method of the multi-connected air conditioning unit comprises the following steps: when the set temperature T0 of the starting-up indoor unit meets the first preset condition, closing a third cut-off valve of the starting-up indoor unit; when the set temperature T0 of the indoor unit is confirmed to meet the second preset condition, closing the third cut-off valve; when the set temperature T0 of the indoor unit is confirmed to meet the third preset condition, opening a third on-off valve of the indoor unit, and closing the first on-off valve and the second on-off valve of the indoor unit; any one of the second preset conditions is smaller than any one of the third preset conditions.
In a further aspect, the first preset condition is: t0< T1, T1 is a first predetermined temperature value.
In a further scheme, T1 is less than or equal to 20 ℃; or t1=20℃.
In a further aspect, the second preset condition is: t1 is less than or equal to T0 and less than or equal to T2, and T2 is a second preset temperature value.
Further, the scheme is that the temperature T2 is more than or equal to 23 ℃ and less than or equal to 26 ℃; or t2=25℃.
Still further, the third preset condition is: t0> T2.
In order to achieve the third object of the present invention, the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the control method of a multi-split air conditioning unit described above.
Drawings
Fig. 1 is a schematic view of an embodiment of a multi-unit air conditioning unit according to the present invention.
Fig. 2 is a flowchart of an embodiment of a control method of the multi-split air conditioning unit of the present invention.
The invention is further described below with reference to the drawings and examples.
Detailed Description
Multi-unit air conditioning unit embodiment:
referring to fig. 1, the multi-connected air conditioning unit of the present embodiment includes an outdoor unit 11 and at least two indoor units 12, wherein a first end of each indoor unit 12 is connected to a first end of the outdoor unit 11 through a first pipeline 13. The first end of the outdoor unit 11 is provided with a first electronic expansion valve 111, a second electronic expansion valve 112 and a third electronic expansion valve 113, the first end of each indoor unit 12 is provided with a first on-off valve 121, a second on-off valve 122 and a third on-off valve 123, and the first pipeline 13 includes a first branch 131, a second branch 132 and a third branch 133. And, the first branch 131 is communicated between the first electronic expansion valve 111 and the first on-off valve 121, and the first on-off valve 121 is used for controlling the first branch 131 to be communicated with or disconnected from the indoor unit 12; the second branch 132 is connected between the second electronic expansion valve 112 and the second switching valve 122, and the second switching valve 122 is used for controlling the second branch 132 to be connected with or disconnected from the indoor unit 12; the third branch 133 is connected between the third electronic expansion valve 113 and the third on-off valve 123, and the third on-off valve 123 is used for controlling the third branch 133 to be connected to or disconnected from the indoor unit 12.
In the operation process of the multi-connected air conditioning unit of this embodiment, the indoor unit 12 is started, and one of the first on-off valve 121, the second on-off valve 122 and the third on-off valve 123 of the indoor unit 12 is controlled to be opened according to the set temperature adjusted by the user, and the other two on-off valves are closed, so that one of the first branch 131, the second branch 132 and the third branch 133 of the first pipeline 13 is communicated with the indoor unit 12, and the other two branches are disconnected from the indoor unit 12, so that one of the first electronic expansion valve 111, the second electronic expansion valve 112 and the third electronic expansion valve 113 of the outdoor unit 11 is selected to be communicated for indoor temperature adjustment. The electronic expansion valve is used for controlling the flow of the refrigerant, and the first electronic expansion valve 111, the second electronic expansion valve 112 and the third electronic expansion valve 113 can be respectively suitable for different indoor units 12 set temperature ranges, so that according to the indoor unit 12 set temperature requirement, the electronic expansion valve branch is automatically controlled and switched to the corresponding outdoor unit 11 electronic expansion valve branch, so that the startup indoor unit 12 can obtain the electronic expansion valve branch matched with the outdoor unit 11 electronic expansion valve branch, when the set temperatures of all startup indoor units 12 of the multi-connected air conditioner unit are different, even when the set temperatures of all startup indoor units 12 are larger, the all startup indoor units 12 can reach the set temperature regulation requirement respectively more quickly, and the indoor temperature regulation efficiency of all startup indoor units 12 is improved, and the use comfort of users is improved. In addition, the multi-connected air conditioning unit replaces the electronic expansion valve of the indoor unit 12 through the on-off valve, so that noise generated by the electronic expansion valve of the indoor unit 12 can be completely eliminated from the source, and the use comfort of a user is improved.
In order to further improve the indoor temperature adjustment efficiency, the operational reliability and the stability, the outdoor unit 11 of the present embodiment is further provided with a fourth electronic expansion valve 114, the outdoor heat exchanger 116 of the outdoor unit 11 is connected to the first end of the fourth electronic expansion valve 114, and the first electronic expansion valve 111, the second electronic expansion valve 112 and the third electronic expansion valve 113 are connected in parallel to the second end of the fourth electronic expansion valve 114.
Specifically, the first on-off valve 121 in this embodiment is an electromagnetic two-way valve, the second on-off valve 122 is an electromagnetic two-way valve, and the third on-off valve 123 is an electromagnetic two-way valve, which has the advantages of small volume, light weight, convenient installation, reliable operation, long service life and the like, thereby improving the operational reliability of the multi-connected air conditioning unit. In addition, the second end of the outdoor unit 11 is provided with a gas-liquid separator 118, the first end of the gas-liquid separator 118 is communicated with the second end of each indoor unit 12 through the second pipeline 14, that is, one end of the indoor heat exchanger 124 of the indoor unit 12, which is far away from the on-off valve, is communicated with the first end of the gas-liquid separator 118, the compressor 115 of the outdoor unit 11 is communicated between the outdoor heat exchanger 116 of the outdoor unit 11 and the second end of the gas-liquid separator 118, and the plate heat exchanger 117 is communicated between the outdoor heat exchanger 116 of the outdoor unit 11 and the fourth electronic expansion valve 114.
Control method embodiments of a multi-connected air conditioning unit:
the control method of the multi-connected air conditioning unit of the present embodiment uses the multi-connected air conditioning unit of the foregoing embodiment, each indoor unit 12 of the multi-connected air conditioning unit is further provided with a circuit board, a processor and a memory are provided on the circuit board, a computer program capable of running on the processor is stored in the memory, and each step of the control method of the multi-connected air conditioning unit of the present embodiment is implemented when the processor executes the computer program.
For example, a computer program may be split into one or more modules, which are stored in memory and executed by a processor to perform the various modules of the invention. One or more of the modules may be a series of computer program instruction segments capable of performing specific functions for describing the execution of the computer program in the terminal device.
The Processor of the present invention may be a central processing unit (Central Processing Unit, CPU), other general purpose Processor, digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), off-the-shelf Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being a control center of the appliance, and the various interfaces and lines being used to connect various parts of the entire appliance.
The memory may be used to store computer programs and/or modules, and the processor implements various functions of the appliance by running or executing the computer programs and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the appliance, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart memory card (SMART MEDIACARD, SMC), secure Digital (SD) card, flash memory card (FLASH CARD), at least one disk storage device, flash memory device, or other volatile solid-state storage device.
The control method of the multi-connected air conditioning unit of the embodiment comprises the following steps: when the set temperature T0 of the indoor unit 12 meets the first preset condition, the first on-off valve 121 of the indoor unit 12 is opened, and the second on-off valve 122 and the third on-off valve 123 of the indoor unit 12 are closed; when the set temperature T0 of the indoor unit 12 meets the second preset condition, the second on-off valve 122 of the indoor unit 12 is opened, and the first on-off valve 121 and the third on-off valve 123 of the indoor unit 12 are closed; when the set temperature T0 of the indoor unit 12 meets the third preset condition, the third on-off valve 123 of the indoor unit 12 is opened, and the first on-off valve 121 and the second on-off valve 122 of the indoor unit 12 are closed; any temperature value in the first preset condition is smaller than any temperature value in the second preset condition, and any temperature value in the second preset condition is smaller than any temperature value in the third preset condition.
According to the control method of the multi-connected air conditioning unit, the set temperature T0 of the indoor unit 12 is identified to meet one of the first preset condition, the second preset condition and the third preset condition, so that one of the first on-off valve 121, the second on-off valve 122 and the third on-off valve 123 of the indoor unit 12 is controlled to be opened according to the preset condition met by the set temperature T0 of the indoor unit 12, the other two on-off valves are closed, one of the first branch 131, the second branch 132 and the third branch 133 of the first pipeline 13 is communicated with the indoor unit 12, the other two branches are disconnected with the indoor unit 12, and the one of the first electronic expansion valve 111, the second electronic expansion valve 112 and the third electronic expansion valve 113 of the outdoor unit 11 is selected to be communicated for indoor temperature adjustment. Therefore, the control method of the multi-connected air conditioning unit of the embodiment can automatically control and switch to the corresponding outdoor unit 11 electronic expansion valve branch according to the set temperature T0 of the indoor unit 12, so that the indoor unit 12 can acquire the electronic expansion valve branch matched with the outdoor unit 11, and when the set temperatures of the indoor units 12 of the multi-connected air conditioning unit are different, even when the set temperatures of the indoor units 12 of the multi-connected air conditioning unit are different, the indoor units 12 of the multi-connected air conditioning unit can reach the set temperature regulation requirements of the indoor units, thereby improving the indoor temperature regulation efficiency of the indoor units 12 of the multi-connected air conditioning unit and improving the use comfort of users.
Specifically, the first preset condition in this embodiment is: t0< T1, T1 is a first preset temperature value, wherein T1 is less than or equal to 20 ℃, preferably t1=20 ℃; the second preset condition in this embodiment is: t1 is equal to or less than T0 is equal to or less than T2, T2 is a second preset temperature value, wherein T2 is equal to or less than 23 ℃ and equal to or less than 26 ℃, preferably, t2=25 ℃; the third preset condition in this embodiment is: t0> T2.
Referring to fig. 2, fig. 2 is a flowchart of a control method of the multi-split air conditioning unit according to the present embodiment, and specific steps are as follows.
Firstly, step S11 is executed, the indoor unit 12 is turned on, i.e. the user remotely controls the indoor unit 12 to turn on, then step S12 is executed, and the user confirms the set temperature T0, i.e. the set temperature T0 of the indoor unit 12 is turned on. Step S13 is then executed to determine whether T0< T1 is satisfied, if yes, step S14 is executed; if not, step S15 is performed. When it is determined that the set temperature T0 of the indoor unit 12 is less than the first preset temperature T1, step S14 is performed to open the first on-off valve 121 of the indoor unit 12 and close the second on-off valve 122 and the third on-off valve 123 of the indoor unit 12. When the set temperature T0 of the indoor unit 12 is confirmed to be greater than or equal to the first preset temperature value T1, executing step S15, judging whether T1 is less than or equal to T0 and less than or equal to T2 is met, if yes, executing step S16; if not, step S17 is performed. When it is confirmed that T1 is equal to or greater than T0 is equal to or greater than T2, step S16 is performed, the second on-off valve 122 of the indoor unit 12 is opened, and the first on-off valve 121 and the third on-off valve 123 of the indoor unit 12 are closed. When it is confirmed that T1 is not less than or equal to T0 and not more than or equal to T2 is not satisfied, executing step S17, judging whether T0 is more than or equal to T2, if yes, executing step S18; if not, step S12 is executed, and the user reconfirm the set temperature T0. When it is confirmed that T0> T2 is satisfied, step S18 is performed to open the third on/off valve 123 of the indoor unit 12 and close the first on/off valve 121 and the second on/off valve 122 of the indoor unit 12.
For example, when the set temperature T0 of the first indoor unit 12 is 16 ℃, the set temperature T0 of the second indoor unit 12 is 28 ℃, the set temperature T0 of the third indoor unit 12 is 22 ℃, the first electronic expansion valve 111, the second electronic expansion valve 112, the third electronic expansion valve 113, and the fourth electronic expansion valve 114 of the outdoor unit 11 are all opened, the first on-off valve 121 of the first indoor unit 12 is opened, the second on-off valve 122 and the third on-off valve 123 of the first indoor unit 12 are closed, the third on-off valve 123 of the second indoor unit 12 is opened, the first on-off valve 121 and the second on-off valve 122 of the second indoor unit 12 are closed, the second on-off valve 122 of the third indoor unit 12 is opened, and the first on-off valve 121 and the third on-off valve 123 of the third indoor unit 12 are closed.
For another example, when the set temperature T0 of the first indoor unit 12 is 24 ℃, the set temperature T0 of the second indoor unit 12 is 21 ℃, the set temperature T0 of the third indoor unit 12 is 22 ℃, the second electronic expansion valve 112, the third electronic expansion valve 113 and the fourth electronic expansion valve 114 of the outdoor unit 11 are opened, the first electronic expansion valve 111 of the outdoor unit 11 is closed, the second on-off valve 122 of the first indoor unit 12 is opened, the first on-off valve 121 and the third on-off valve 123 of the first indoor unit 12 are closed, the second on-off valve 122 of the second indoor unit 12 is opened, the first on-off valve 121 and the third on-off valve 123 of the second indoor unit 12 are closed, the second on-off valve 122 of the third indoor unit 12 is opened, and the first on-off valve 121 and the third on-off valve 123 of the third indoor unit 12 are closed.
Computer-readable storage medium embodiments:
The computer program stored in the memory of each indoor unit 12 of the multi-connected air conditioner unit may be stored in a computer-readable storage medium if implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and the computer program may implement the steps of the control method of the multi-connected air conditioning unit when executed by a processor.
Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the jurisdiction's jurisdiction and the patent practice, for example, in some jurisdictions, the computer readable medium does not include electrical carrier signals and telecommunication signals according to the jurisdiction and the patent practice.
The above embodiments are only preferred examples of the present invention and are not intended to limit the scope of the present invention, so that all equivalent changes or modifications made according to the construction, characteristics and principles of the present invention shall be included in the scope of the present invention.
Claims (13)
1. The utility model provides a multi-connected air conditioning unit, includes off-premises station and two piece at least indoor set, every the first end of indoor set is linked together its characterized in that through first pipeline with the first end of off-premises station:
The first end of each indoor unit is provided with a first on-off valve and a second on-off valve, and the first pipeline comprises a first branch and a second branch;
the first branch is communicated between the first electronic expansion valve and the first on-off valve, and the first on-off valve is used for controlling the first branch to be communicated with or disconnected from the indoor unit;
the second branch is communicated between the second electronic expansion valve and the second on-off valve, and the second on-off valve is used for controlling the second branch to be communicated with or disconnected from the indoor unit.
2. The multi-split air conditioning unit of claim 1, wherein:
The first end of the outdoor unit is further provided with a third electronic expansion valve, the first end of each indoor unit is further provided with a third on-off valve, the first pipeline further comprises a third branch, the third branch is communicated between the third electronic expansion valve and the third on-off valve, and the third on-off valve is used for controlling the third branch to be communicated with or disconnected from the indoor unit.
3. The multi-split air conditioning unit of claim 2, wherein:
the outdoor unit is also provided with a fourth electronic expansion valve, an outdoor heat exchanger of the outdoor unit is communicated with the first end of the fourth electronic expansion valve, and the first electronic expansion valve, the second electronic expansion valve and the third electronic expansion valve are connected in parallel and are communicated with the second end of the fourth electronic expansion valve.
4. The multi-split air conditioning unit of claim 2, wherein:
the first on-off valve is an electromagnetic two-way valve;
and/or, the second on-off valve is an electromagnetic two-way valve;
and/or the third three-way shut-off valve is an electromagnetic two-way valve.
5. The multi-split air conditioning unit according to any one of claims 1 to 4, wherein:
The second end of the outdoor unit is provided with a gas-liquid separator, the first end of the gas-liquid separator is communicated with the second end of each indoor unit through a second pipeline, and the compressor of the outdoor unit is communicated between the outdoor heat exchanger of the outdoor unit and the second end of the gas-liquid separator.
6. A control method of a multi-connected air conditioning unit, characterized in that the multi-connected air conditioning unit according to claim 1 is used;
the control method of the multi-connected air conditioning unit comprises the following steps:
when the set temperature T0 of the indoor unit is confirmed to meet a first preset condition, opening the first on-off valve of the indoor unit, and closing the second on-off valve of the indoor unit;
When the set temperature T0 of the indoor unit is confirmed to meet a second preset condition, opening the second on-off valve of the indoor unit, and closing the first on-off valve of the indoor unit;
any one of the first preset conditions is smaller than any one of the second preset conditions.
7. The control method of the multi-connected air conditioning unit according to claim 6, wherein:
the first end of the outdoor unit is also provided with a third electronic expansion valve, the first end of each indoor unit is also provided with a third on-off valve, the first pipeline further comprises a third branch, the third branch is communicated between the third electronic expansion valve and the third on-off valve, and the third on-off valve is used for controlling the third branch to be communicated with or disconnected from the indoor unit;
The control method of the multi-connected air conditioning unit further comprises the following steps:
when the set temperature T0 of the starting-up indoor unit meets the first preset condition, closing the third cut-off valve of the starting-up indoor unit;
when the set temperature T0 of the indoor unit is confirmed to meet the second preset condition, closing the third cut-off valve;
when the set temperature T0 of the indoor unit is confirmed to meet a third preset condition, opening the third on-off valve of the indoor unit, and closing the first on-off valve and the second on-off valve of the indoor unit;
any one of the second preset conditions is smaller than any one of the third preset conditions.
8. The control method of the multi-connected air conditioning unit according to claim 7, wherein:
The first preset condition is as follows: t0< T1, T1 is a first predetermined temperature value.
9. The control method of the multi-connected air conditioning unit according to claim 8, wherein:
T1≤20℃；
or t1=20℃.
10. The control method of a multi-type air conditioning unit according to claim 8 or 9, characterized by:
the second preset condition is: t1 is less than or equal to T0 and less than or equal to T2, and T2 is a second preset temperature value.
11. The control method of a multi-split air conditioner set according to claim 10, wherein:
23℃≤T2≤26℃；
Or t2=25℃.
12. The control method of a multi-split air conditioner set according to claim 10, wherein:
the third preset condition is: t0> T2.
13. A computer readable storage medium having stored thereon a computer program characterized by:
the computer program, when executed by a processor, implements the steps of the control method of a multi-gang air conditioning unit of any of the preceding claims 6 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211250865.4A CN115614851B (en) | 2022-10-12 | 2022-10-12 | Control method of multi-connected air conditioning unit, multi-connected air conditioning unit and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211250865.4A CN115614851B (en) | 2022-10-12 | 2022-10-12 | Control method of multi-connected air conditioning unit, multi-connected air conditioning unit and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115614851A CN115614851A (en) | 2023-01-17 |
| CN115614851B true CN115614851B (en) | 2024-07-02 |
Family
ID=84863683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211250865.4A Active CN115614851B (en) | 2022-10-12 | 2022-10-12 | Control method of multi-connected air conditioning unit, multi-connected air conditioning unit and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115614851B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017096597A (en) * | 2015-11-27 | 2017-06-01 | パナソニックＩｐマネジメント株式会社 | Air conditioner and electromagnetic valve kit |
| JP2019143951A (en) * | 2018-02-23 | 2019-08-29 | ダイキン工業株式会社 | Air conditioner |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000035254A (en) * | 1998-07-17 | 2000-02-02 | Toshiba Corp | Multi-room split type air conditioner system |
| JP4471810B2 (en) * | 2004-10-26 | 2010-06-02 | 三洋電機株式会社 | Air conditioner |
| KR101188493B1 (en) * | 2006-10-23 | 2012-10-05 | 엘지전자 주식회사 | A reduction method of mode changeover noise for multi-airconditioner |
| JP5377041B2 (en) * | 2009-04-09 | 2013-12-25 | 日立アプライアンス株式会社 | Refrigeration cycle equipment |
| CN103836773B (en) * | 2012-11-21 | 2016-08-17 | 美的集团股份有限公司 | Multi-online air-conditioning system and shutdown noise control method thereof |
| CN203454464U (en) * | 2013-07-12 | 2014-02-26 | 广东美的暖通设备有限公司 | Heat pump system |
| CN104748239B (en) * | 2015-03-31 | 2017-10-31 | 广东美的暖通设备有限公司 | Multiple on-line system |
| CN206001759U (en) * | 2016-08-23 | 2017-03-08 | 广东美的暖通设备有限公司 | Switching device for multi-gang air-conditioner and the multi-gang air-conditioner with it |
| CN107917468B (en) * | 2017-12-12 | 2020-09-11 | 广东美的制冷设备有限公司 | Air conditioner hanging machine and control method thereof |
| CN109916043B (en) * | 2019-02-02 | 2021-04-06 | 广东美的暖通设备有限公司 | Mode switching control method and air conditioning system |
| CN110410967B (en) * | 2019-07-03 | 2021-08-24 | 宁波奥克斯电气股份有限公司 | Multi-line air conditioning system pipeline noise control method and multi-line air conditioning system |
| CN111237880A (en) * | 2020-03-02 | 2020-06-05 | 青岛海信日立空调系统有限公司 | Heat recovery multi-split air conditioner |
| CN112178893B (en) * | 2020-09-22 | 2021-11-30 | 广东美的暖通设备有限公司 | Air conditioner, control method, and computer-readable storage medium |
| CN113432188A (en) * | 2021-07-16 | 2021-09-24 | 广东积微科技有限公司 | Multi-split system with partitioned control and self-identification control method thereof |
| CN114322066B (en) * | 2021-12-30 | 2025-04-01 | 珠海格力电器股份有限公司 | Indoor heat exchanger assembly, multi-split air conditioning system and control method thereof |
-
2022
- 2022-10-12 CN CN202211250865.4A patent/CN115614851B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017096597A (en) * | 2015-11-27 | 2017-06-01 | パナソニックＩｐマネジメント株式会社 | Air conditioner and electromagnetic valve kit |
| JP2019143951A (en) * | 2018-02-23 | 2019-08-29 | ダイキン工業株式会社 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115614851A (en) | 2023-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107576108B (en) | Multi-split air conditioner control method | |
| CN104501303A (en) | Multi-split air conditioner and refrigerant circulation control method | |
| CN110553415B (en) | Air conditioner, control method of air conditioner and storage medium | |
| CN106440560B (en) | The adjustable air-conditioning system of condensation area and its control method | |
| CN109654686B (en) | Air conditioner control method, air conditioner and computer readable storage medium | |
| CN112710064A (en) | Multi-split air conditioner, control method thereof and computer readable storage medium | |
| CN113390206B (en) | Air conditioner, air conditioner working method, computer device and storage medium | |
| WO2023165127A1 (en) | Air conditioner defrosting control method and system, and electronic device and storage medium | |
| CN115614851B (en) | Control method of multi-connected air conditioning unit, multi-connected air conditioning unit and computer readable storage medium | |
| CN114517973A (en) | Control method and control system for air conditioner shunting, electronic equipment and storage medium | |
| CN114688681B (en) | Air conditioner, control method and device thereof and readable storage medium | |
| WO2025030994A1 (en) | Air conditioner control method and apparatus, and multi-split air conditioner and storage medium | |
| CN113007829A (en) | Air conditioner control method and device and air conditioner | |
| WO2025030945A1 (en) | Air conditioner control method and apparatus, multi-split air conditioner, and storage medium | |
| CN114992803B (en) | Control method and device for air supplementing and enthalpy increasing of heat pump air conditioner and heat pump air conditioner | |
| CN116182369A (en) | Method and device for controlling outlet air temperature of air conditioner, air conditioner, storage medium | |
| CN117308310A (en) | Method and device for controlling refrigeration of air conditioner, air conditioner and storage medium | |
| CN115493254A (en) | Air conditioner control method, air conditioner and readable storage medium | |
| CN221005322U (en) | Air conditioning water heater system | |
| CN114738940B (en) | Method and device for refrigeration control of air conditioner, air conditioner, storage medium | |
| CN216924805U (en) | Air conditioning refrigeration system | |
| CN115479390A (en) | Air conditioner, mute control method thereof and computer readable storage medium | |
| CN218269292U (en) | Air conditioning unit system with dehumidification function | |
| CN115654712B (en) | Multi-connected air conditioner control method and device and multi-connected air conditioner | |
| CN117267883A (en) | Method and device for controlling air conditioner, air conditioner and 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 |