CN115183392A - Multi-split air conditioning system, heat dissipation control method thereof and computer readable storage medium - Google Patents

Multi-split air conditioning system, heat dissipation control method thereof and computer readable storage medium Download PDF

Info

Publication number
CN115183392A
CN115183392A CN202210800461.1A CN202210800461A CN115183392A CN 115183392 A CN115183392 A CN 115183392A CN 202210800461 A CN202210800461 A CN 202210800461A CN 115183392 A CN115183392 A CN 115183392A
Authority
CN
China
Prior art keywords
conditioning system
value
split air
opening degree
air conditioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210800461.1A
Other languages
Chinese (zh)
Inventor
黎顺全
戎耀鹏
刘记
陈炽明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
GD Midea Air Conditioning Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GD Midea Air Conditioning Equipment Co Ltd filed Critical GD Midea Air Conditioning Equipment Co Ltd
Priority to CN202210800461.1A priority Critical patent/CN115183392A/en
Publication of CN115183392A publication Critical patent/CN115183392A/en
Pending legal-status Critical Current

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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a multi-split air conditioning system, a heat dissipation control method thereof and a computer readable storage medium, wherein the method comprises the following steps: detecting the current temperature of a driving module of a compressor in a complete heat recovery mode of the multi-split air conditioning system; when the current temperature belongs to a first temperature range, determining the opening degree of a main expansion valve and the rotating speed of an outdoor unit fan; and controlling the four-way valve to be electrified, and controlling the multi-split air-conditioning system to operate according to the opening degree and the rotating speed so as to enable the refrigerant to dissipate heat through the outdoor heat exchanger and the refrigerant heat dissipation module. The invention enables the driving module to effectively dissipate heat.

Description

Multi-split air conditioning system, heat dissipation control method thereof and computer readable storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to a multi-split air conditioning system, a heat dissipation control method thereof and a computer readable storage medium.
Background
The heat recovery multi-split air conditioning system is a three-pipe multi-split air conditioning system, is provided with a high-low pressure pipe, an air pipe and a liquid pipe, can be matched with two-pipe indoor units through an adapter, or can be directly matched with corresponding three-pipe indoor units, and realizes that the indoor units in the air conditioning system simultaneously run a heating mode and a refrigerating mode, namely, the heat recovery multi-split air conditioning system can run the heating mode while part of the indoor units run the refrigerating mode.
In the complete heat recovery mode, the heat exchanger of the outdoor unit does not participate in the circulation of the air conditioning system, and the refrigerant does not flow through the heat dissipation module of the outdoor unit, so that the driving module of the compressor cannot perform effective heat dissipation, and particularly, under the high-load condition, the temperature of the driving module can be rapidly increased, so that the driving module is damaged.
Disclosure of Invention
The invention mainly aims to provide a multi-split air conditioning system, a heat dissipation control method thereof and a computer readable storage medium, and aims to solve the problem of how to dissipate heat of a driving module.
In order to achieve the above object, the present invention provides a heat dissipation control method for a multi-split air conditioning system, the multi-split air conditioning system is provided with a four-way valve and a main expansion valve, the four-way valve is respectively connected with an indoor unit, a compressor and an outdoor unit, the main expansion valve is arranged at the outdoor unit side, the heat dissipation control method for the multi-split air conditioning system comprises the following steps:
detecting the current temperature of a driving module of a compressor in a complete heat recovery mode of the multi-split air conditioning system;
when the current temperature belongs to a first temperature range, determining the opening degree of a main expansion valve and the rotating speed of an outdoor unit fan;
and controlling the four-way valve to be electrified, and controlling the multi-split air-conditioning system to operate according to the opening degree and the rotating speed so as to enable the refrigerant to dissipate heat through the outdoor heat exchanger and the refrigerant heat dissipation module.
In an embodiment, after the step of detecting the current temperature of the driving module of the compressor, the method further includes:
when the current temperature belongs to a second temperature range, determining that the main expansion valve is in the maximum opening degree and the outdoor fan is in the maximum rotating speed, wherein the minimum temperature value in the second temperature range is greater than the maximum temperature value in the first temperature range;
and controlling the four-way valve to power off, and controlling the multi-split air conditioning system to operate according to the maximum opening and the maximum rotating speed so that the refrigerant is radiated through the outdoor heat exchanger and the refrigerant radiating module.
In an embodiment, after the step of detecting the current temperature of the driving module of the compressor, the method further includes:
and when the current temperature belongs to a third temperature range, controlling the four-way valve to be powered on, controlling the main expansion valve and the outdoor fan to be closed, wherein the maximum temperature value in the third temperature range is smaller than the minimum temperature value in the first temperature range.
In one embodiment, the determining the opening degree of the main expansion valve and the rotation speed of the outdoor unit fan when the current temperature belongs to the first temperature range includes:
when the current temperature belongs to a first sub-range in a first temperature range, determining that the rotating speed is zero, and determining that the opening is a first opening value;
after the step of controlling the four-way valve to be powered on and controlling the operation of the multi-split air conditioning system according to the opening degree and the rotating speed, the method further comprises the following steps:
after the first time length is preset, updating the opening degree according to the difference value of the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and controlling the operation of the multi-split air conditioning system according to the rotating speed and the updated opening degree.
In one embodiment, the determining the opening degree of the main expansion valve and the rotation speed of the outdoor unit fan when the current temperature belongs to the first temperature range includes:
when the current temperature belongs to a second sub-range in the first temperature range, determining that the rotating speed is a first rotating speed value, and determining that the opening is a second opening value, wherein the second opening value is greater than the first opening value, and the minimum temperature value in the second sub-range is greater than the maximum temperature value in the first sub-range;
after the step of controlling the four-way valve to be powered on and controlling the operation of the multi-split air conditioning system according to the opening degree and the rotating speed, the method further comprises the following steps:
after the air conditioner runs for a preset second time, updating the opening according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and controlling the operation of the multi-split air-conditioning system according to the rotating speed and the updated opening degree.
In one embodiment, the determining the opening degree of the main expansion valve and the rotation speed of the outdoor unit fan when the current temperature belongs to the first temperature range includes:
when the current temperature belongs to a third sub-range in the current temperature range, determining that the rotating speed is a second rotating speed value, and determining that the opening degree of the main expansion valve is a third opening degree value, wherein the second rotating speed value is greater than the first rotating speed value, the third opening degree value is greater than the second opening degree value, and the minimum temperature value in the third sub-range is greater than the maximum temperature value in the second sub-range;
after the step of controlling the four-way valve to be powered on and controlling the operation of the multi-split air-conditioning system according to the opening degree and the rotating speed, the method further comprises the following steps:
after the air conditioner operates for a preset third time, updating the opening according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and controlling the operation of the multi-split air conditioning system according to the rotating speed and the updated opening degree.
In one embodiment, the step of updating the opening degree according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value comprises the following steps:
when the degree of superheat is larger than or equal to the degree of superheat threshold value, updating the opening degree according to a preset first adjusting coefficient and the difference value;
and when the superheat degree is smaller than the superheat degree threshold value, updating the opening degree according to a preset second adjusting coefficient and the difference value.
In an embodiment, the first temperature range is determined by an outdoor temperature.
In order to achieve the above object, the present invention further provides a multi-split air conditioning system, which includes a memory, a processor, and a multi-split air conditioning system heat dissipation control program stored in the memory and executable on the processor, wherein the multi-split air conditioning system heat dissipation control program, when executed by the processor, implements the steps of the multi-split air conditioning system heat dissipation control method.
To achieve the above object, the present invention also provides a computer-readable storage medium storing a multi-split air conditioning system heat dissipation control program, which, when executed by a processor, implements the steps of the multi-split air conditioning system heat dissipation control method as described above.
According to the multi-split air conditioning system, the heat dissipation control method thereof and the computer readable storage medium, the current temperature of the driving module of the compressor is detected in the complete heat recovery mode of the multi-split air conditioning system; when the current temperature belongs to a first temperature range, determining the opening degree of a main expansion valve and the rotating speed of an outdoor unit fan; and controlling the four-way valve to be electrified, and controlling the multi-split air conditioning system to operate according to the opening degree and the rotating speed so that the refrigerant is radiated through the outdoor heat exchanger and the refrigerant radiating module. Under the complete heat recovery mode, adjust the refrigerant volume through the aperture of adjustment main expansion valve, match accurate refrigerant flow to the different heat dissipation loads of drive module to adjust the refrigerant radiating effect through the rotational speed of adjusting outdoor fan, when making drive module can effectively dispel the heat, still make the multi-split system more energy-conserving.
Drawings
Fig. 1 is a schematic diagram of a hardware structure of a multi-split air conditioning system according to an embodiment of the present invention;
fig. 2 is a schematic flowchart illustrating a heat dissipation control method of a multi-split air conditioning system according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a multi-split air conditioning system according to the present invention;
fig. 4 is a schematic flowchart illustrating a heat dissipation control method for a multi-split air conditioning system according to a second embodiment of the present invention;
fig. 5 is a schematic flowchart illustrating a heat dissipation control method for a multi-split air conditioning system according to a third embodiment of the present invention;
fig. 6 is a schematic flowchart illustrating a heat dissipation control method for a multi-split air conditioning system according to a fourth embodiment of the present invention;
fig. 7 is a schematic flowchart illustrating a fifth embodiment of a heat dissipation control method for a multi-split air conditioning system according to the present invention;
fig. 8 is a schematic flowchart illustrating a heat dissipation control method for a multi-split air conditioning system according to a sixth embodiment of the present invention;
fig. 9 is a flowchart illustrating a heat dissipation control method for a multi-split air conditioning system according to a seventh embodiment of the present invention.
The implementation, functional features and advantages of the present invention will be further described 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: detecting the current temperature of a driving module of a compressor in a complete heat recovery mode of the multi-split air conditioning system; when the current temperature belongs to a first temperature range, determining the opening degree of a main expansion valve and the rotating speed of an outdoor unit fan; and controlling the four-way valve to be electrified, and controlling the multi-split air conditioning system to operate according to the opening degree and the rotating speed so that the refrigerant is radiated through the outdoor heat exchanger and the refrigerant radiating module.
Under the complete heat recovery mode, the refrigerant quantity is adjusted by adjusting the opening degree of the main expansion valve, the accurate refrigerant flow is matched with different heat dissipation loads of the driving module, the refrigerant heat dissipation effect is adjusted by adjusting the rotating speed of the outdoor fan, the driving module can effectively dissipate heat, and meanwhile, the multi-split system is more energy-saving.
As one implementation, the multi-split air conditioning system may be as shown in fig. 1.
The embodiment of the invention relates to a multi-split air conditioning system, which comprises: a processor 101, e.g. a CPU, a memory 102, a communication bus 103. 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 (non-volatile memory), such as a disk memory. As shown in fig. 1, a memory 102, which is a computer-readable storage medium, may include therein a multi-on-line air conditioning system heat dissipation control program; and the processor 101 may be configured to call the multi-split air conditioning system heat dissipation control program stored in the memory 102, and perform the following operations:
detecting the current temperature of a driving module of a compressor in a complete heat recovery mode of the multi-split air conditioning system;
when the current temperature belongs to a first temperature range, determining the opening degree of a main expansion valve and the rotating speed of an outdoor unit fan;
and controlling the four-way valve to be electrified, and controlling the multi-split air-conditioning system to operate according to the opening degree and the rotating speed so as to enable the refrigerant to dissipate heat through the outdoor heat exchanger and the refrigerant heat dissipation module.
In one embodiment, the processor 101 may be configured to invoke a multi-split air conditioning system heat dissipation control program stored in the memory 102 and perform the following operations:
when the current temperature belongs to a second temperature range, determining that the main expansion valve is in the maximum opening degree and the outdoor fan is in the maximum rotating speed, wherein the minimum temperature value in the second temperature range is greater than the maximum temperature value in the first temperature range;
and controlling the four-way valve to be powered off, and controlling the multi-split air-conditioning system to operate according to the maximum opening and the maximum rotating speed so that the refrigerant is radiated through the outdoor heat exchanger and the refrigerant radiating module.
In an embodiment, the processor 101 may be configured to call a multi-split air conditioning system heat dissipation control program stored in the memory 102, and perform the following operations:
and when the current temperature belongs to a third temperature range, controlling the four-way valve to be powered on, controlling the main expansion valve and the outdoor fan to be closed, wherein the maximum temperature value in the third temperature range is smaller than the minimum temperature value in the first temperature range.
In an embodiment, the processor 101 may be configured to call a multi-split air conditioning system heat dissipation control program stored in the memory 102, and perform the following operations:
when the current temperature belongs to a first sub-range in a first temperature range, determining that the rotating speed is zero and determining that the opening degree is a first opening degree value;
after the step of controlling the four-way valve to be powered on and controlling the operation of the multi-split air conditioning system according to the opening degree and the rotating speed, the method further comprises the following steps:
after the first time length is preset, updating the opening degree according to the difference value of the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and controlling the operation of the multi-split air-conditioning system according to the rotating speed and the updated opening degree.
In an embodiment, the processor 101 may be configured to call a multi-split air conditioning system heat dissipation control program stored in the memory 102, and perform the following operations:
when the current temperature belongs to a second sub-range in the first temperature range, determining that the rotating speed is a first rotating speed value, and determining that the opening is a second opening value, wherein the second opening value is greater than the first opening value, and the minimum temperature value in the second sub-range is greater than the maximum temperature value in the first sub-range;
after the step of controlling the four-way valve to be powered on and controlling the operation of the multi-split air-conditioning system according to the opening degree and the rotating speed, the method further comprises the following steps:
after the air conditioner operates for a preset second time, updating the opening according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and controlling the operation of the multi-split air-conditioning system according to the rotating speed and the updated opening degree.
In an embodiment, the processor 101 may be configured to call a multi-split air conditioning system heat dissipation control program stored in the memory 102, and perform the following operations:
when the current temperature belongs to a third sub-range in the current temperature range, determining that the rotating speed is a second rotating speed value, and determining that the opening degree of the main expansion valve is a third opening degree value, wherein the second rotating speed value is greater than the first rotating speed value, the third opening degree value is greater than the second opening degree value, and the minimum temperature value in the third sub-range is greater than the maximum temperature value in the second sub-range;
after the step of controlling the four-way valve to be powered on and controlling the operation of the multi-split air-conditioning system according to the opening degree and the rotating speed, the method further comprises the following steps:
after the air conditioner runs for a preset third time, updating the opening according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and controlling the operation of the multi-split air conditioning system according to the rotating speed and the updated opening degree.
In one embodiment, the processor 101 may be configured to invoke a multi-split air conditioning system heat dissipation control program stored in the memory 102 and perform the following operations:
when the degree of superheat is larger than or equal to the degree of superheat threshold value, updating the opening degree according to a preset first adjusting coefficient and the difference value;
and when the degree of superheat is smaller than the degree of superheat threshold value, updating the opening degree according to a preset second adjusting coefficient and the difference value.
Based on the hardware framework of the multi-split air conditioning system, the embodiment of the heat dissipation control method of the multi-split air conditioning system is provided.
Referring to fig. 2, fig. 2 is a first embodiment of a heat dissipation control method of a multi-split air conditioning system according to the present invention, and the heat dissipation control method of the multi-split air conditioning system includes the following steps:
and S10, detecting the current temperature of a driving module of the compressor in a complete heat recovery mode of the multi-split air conditioning system.
Specifically, as shown in fig. 3, the multi-split air conditioning system includes a plurality of indoor units 40 and outdoor units 100, the indoor units 40 and the outdoor units 100 are connected by liquid pipes 60, high and low pressure pipes 30, and air pipes 50, and the indoor units 40 are connected by valve boxes 41 to the liquid pipes 60, the high and low pressure pipes 30, and the air pipes 50. The liquid pipe 60 of the multi-split air conditioning system is further provided with a subcooler 70, a refrigerant heat dissipation module 80, a main expansion valve 90 and an outdoor unit 100. The multi-split air conditioning system is provided with a four-way valve 20, the four-way valve 20 is respectively connected with an indoor unit 40, a compressor 10 and an outdoor unit 100, wherein the four-way valve 20 is connected with the indoor unit 40 through a high-low pressure pipe 30 or an air pipe 50, and the four-way valve 20 is connected with the outdoor unit 100 through a liquid pipe 60.
In the complete heat recovery mode, the loads of an indoor unit in the heating mode and an indoor unit in the refrigeration mode are equivalent, a refrigerant is condensed in the indoor unit in the heating mode through a high-pressure pipe and a low-pressure pipe from a compressor, then throttled and evaporated in the indoor unit in the refrigeration mode, and finally returns to the compressor through an air pipe to complete circulation.
Therefore, the driving module of the compressor can normally perform refrigerant heat dissipation by adopting a refrigerant heat dissipation mode in a complete refrigeration mode, a complete heating mode, a main body refrigeration mode or a main body heating mode. However, in the complete heat recovery mode, since the heat exchanger of the outdoor unit does not participate in the circulation of the multi-split air conditioning system, and the refrigerant does not flow through the heat dissipation module, effective heat dissipation cannot be performed, and particularly, the temperature of the driving module rapidly rises under a high load condition, which easily causes frequency limitation or frequency reduction of the compressor, and even damages to the driving module.
And detecting the current temperature of a driving module of the compressor in a complete heat recovery mode of the multi-split air conditioning system, and determining a heat dissipation mode according to the current temperature of the driving module. Optionally, the driving module is a variable frequency driving module.
And S20, when the current temperature belongs to a first temperature range, determining the opening degree of the main expansion valve and the rotating speed of an outdoor unit fan.
Specifically, when the current temperature belongs to the first temperature range, it indicates that the current temperature of the driving module is high, and the driving module needs to be cooled. Optionally, the first temperature range is (T1, T4), where T1 is the first temperature threshold and T4 is the fourth temperature threshold, optionally, T4 < 100.
When the current temperature belongs to the first temperature range, the opening degree of the main expansion valve and the rotating speed of the outdoor fan are determined. Optionally, the higher the current temperature is, the larger the opening degree of the main expansion valve is, and the larger the rotating speed of the outdoor fan is, so that the better the heat dissipation effect of the driving module is. Optionally, the lower the current temperature is, the smaller the opening degree of the main expansion valve is, and the smaller the rotation speed of the outdoor fan is, so that energy consumption of the air conditioning system is saved.
And S30, controlling the four-way valve to be electrified, and controlling the multi-split air conditioning system to operate according to the opening degree and the rotating speed so that the refrigerant is radiated through the outdoor heat exchanger and the refrigerant radiating module.
Specifically, after the multi-split air conditioning system controls the four-way valve to be powered on, the flow direction of a refrigerant with a first proportion in the multi-split air conditioning system is as follows: the system comprises a compressor, high and low pressure pipes, a valve box of a refrigerating indoor unit, the refrigerating indoor unit, a valve box of a heating indoor unit, a heating outdoor unit, a gas pipe and the compressor; the flow direction of the refrigerant with the second proportion in the multi-split air conditioning system is as follows: the system comprises a compressor, a high-low pressure pipe, a valve box of a refrigerating indoor unit, the refrigerating indoor unit, a valve box of a heating indoor unit, a heating outdoor unit, a liquid pipe, a refrigerant heat dissipation module, a main expansion valve, an outdoor fan, a capillary tube of a four-way valve and the four-way valve, and finally the system returns to the compressor. Optionally, the first ratio is greater than the second ratio.
At this time, the refrigerant with the second proportion is radiated through the refrigerant radiating module, or radiated through the refrigerant radiating module and the outdoor heat exchanger, so that the temperature of the refrigerant is reduced, and further the temperature of the driving module is reduced.
And controlling the four-way valve to be electrified, and controlling the multi-split air conditioning system to operate according to the opening degree and the rotating speed, so that the refrigerant is radiated through the outdoor heat exchanger and the refrigerant radiating module. The opening degree of the main expansion valve determines the proportion or the quantity of the refrigerant entering the liquid pipe for heat dissipation, wherein the larger the opening degree is, the larger the proportion or the quantity of the refrigerant entering the liquid pipe is, and the smaller the opening degree is, the smaller the proportion or the quantity of the refrigerant entering the liquid pipe is. The rotating speed of the outdoor fan determines the heat dissipation speed of the refrigerant in the outdoor heat exchanger, wherein the larger the rotating speed of the outdoor unit is, the faster the heat dissipation speed of the refrigerant is, and the smaller the rotating speed of the outdoor unit is, the smaller the heat dissipation speed of the refrigerant is.
In the technical scheme of this embodiment, under the complete heat recovery mode, adjust the refrigerant volume through the aperture of adjustment main expansion valve, match accurate refrigerant flow to the different heat dissipation loads of drive module to adjust refrigerant radiating effect through the rotational speed of adjusting outdoor fan, when making drive module can carry out effective heat dissipation, still make the multi-split system more energy-conserving.
Referring to fig. 4, fig. 4 is a second embodiment of a heat dissipation control method for a multi-split air conditioning system according to the present invention, and based on the first embodiment, after step S10, the method further includes:
step S40, when the current temperature belongs to a second temperature range, determining that the main expansion valve is in the maximum opening degree and the outdoor fan is in the maximum rotating speed, wherein the minimum temperature value in the second temperature range is larger than the maximum temperature value in the first temperature range;
and S50, controlling the four-way valve to be powered off, and controlling the multi-split air-conditioning system to operate according to the maximum opening and the maximum rotating speed so that the refrigerant is radiated through the outdoor heat exchanger and the refrigerant radiating module.
Specifically, when the current temperature belongs to the second temperature range, it indicates that the current temperature of the driving module is very high, and the driving module is urgently required to be cooled. The minimum temperature value in the second temperature range is greater than the maximum temperature value in the first temperature range, and optionally, the second temperature range is that the current temperature is greater than a fourth temperature threshold T4.
After the multi-split air-conditioning system controls the four-way valve to be powered off, the flow direction of the refrigerant with the third proportion in the multi-split air-conditioning system is as follows: the system comprises a compressor, a high-low pressure pipe, a valve box of a refrigerating indoor unit, the refrigerating indoor unit, a valve box of a heating indoor unit, a heating outdoor unit, an air pipe and the compressor; the flow direction of the refrigerant with the fourth proportion in the multi-split air conditioning system is as follows: the system comprises a compressor, a high-low pressure pipe, a valve box of a refrigerating indoor unit, the refrigerating indoor unit, a valve box of a heating indoor unit, a heating outdoor unit, a liquid pipe, a refrigerant heat dissipation module, a main expansion valve, an outdoor fan and a four-way valve, and finally the system returns to the compressor. Optionally, the third ratio is smaller than the first ratio, and the fourth ratio is larger than the second ratio, that is, the amount of refrigerant entering the outdoor unit for heat dissipation is increased.
At the moment, the refrigerant with the fourth proportion is radiated through the refrigerant radiating module and the outdoor heat exchanger, the temperature of the refrigerant is reduced, and the temperature of the driving module is further reduced.
When the current temperature belongs to a first temperature range, the main expansion valve and the outdoor fan are determined to be in the maximum opening degree and the maximum rotating speed, and when the main expansion valve and the outdoor fan are in the maximum opening degree and the maximum rotating speed, the heat dissipation effect of the driving module is excellent. And controlling the four-way valve to power off, and controlling the multi-split air conditioning system to operate according to the maximum opening and the maximum rotating speed so that the refrigerant is radiated through the outdoor heat exchanger and the refrigerant radiating module.
In the technical scheme of this embodiment, under complete heat recovery mode, match great refrigerant flow to the great heat dissipation load of drive module to rotational speed adjustment refrigerant radiating effect through adjusting outdoor fan makes drive module can effectively dispel the heat, in order to ensure drive module normal operating.
Referring to fig. 5, fig. 5 is a third embodiment of a heat dissipation control method for a multi-split air conditioning system according to the present invention, and based on the first or second embodiment, after step S10, the method further includes:
and S60, when the current temperature belongs to a third temperature range, controlling the four-way valve to be electrified, controlling the main expansion valve and the outdoor fan to be closed, wherein the maximum temperature value in the third temperature range is smaller than the minimum temperature value in the first temperature range.
Specifically, when the current temperature belongs to the third temperature range, the current temperature of the driving module is low, and the heat dissipation requirement on the driving module is low. Optionally, the third temperature range is that the current temperature is less than or equal to the first temperature threshold T1.
Because the main expansion valve is closed, the flow direction of the refrigerant in the multi-split air conditioning system is as follows: the compressor, the high-low pressure pipe, the valve box of the refrigeration indoor unit, the valve box of the heating indoor unit, the heating outdoor unit and the air pipe finally return to the compressor.
In the technical scheme of this embodiment, in the complete heat recovery mode, the driving module does not need to dissipate heat through a refrigerant under the condition of a small heat dissipation load, so that the multi-split system is more energy-saving.
Referring to fig. 6, fig. 6 is a fourth embodiment of a heat dissipation control method for a multi-split air conditioning system according to the present invention, where based on any one of the first to third embodiments, the step S20 includes:
step S21, when the current temperature belongs to a first sub-range in a first temperature range, determining that the rotating speed is zero, and determining that the opening is a first opening value;
after the step S30, the method further includes:
step S70, after a first time length is preset, updating the opening degree according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and S80, controlling the operation of the multi-split air conditioning system according to the rotating speed and the updated opening degree.
Specifically, the current temperature belongs to a first sub-range in a first temperature range, where the first sub-range is (T1, T2), where T1 is a first temperature threshold, T2 is a second temperature threshold, and T2 is smaller than a fourth temperature threshold T4, where the current temperature of the driving module is higher, and heat dissipation needs to be performed on the driving module, so that it is determined that the rotation speed of the outdoor fan is zero, and it is determined that the opening degree of the main expansion valve is a first opening degree value X1, where the first opening degree value X1 is associated with the first sub-range.
And controlling the four-way valve to be electrified, and controlling the multi-split air-conditioning system to operate according to the first opening value X1 of the main expansion valve. After the first time period a is preset, optionally, the first time period is preset to be within a range (0, 10 min), and the multi-split air conditioning system enters an automatic control mode. Updating the opening degree according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value, and optionally, updating the opening degree according to a preset first adjusting coefficient and the difference value when the superheat degree is greater than or equal to the superheat degree threshold value; illustratively, the following equation is shown:
when Ts is more than or equal to Ts1, X = X' + k1 (Ts-Ts 1), and k1 is more than 0 and less than 5;
wherein Ts represents a superheat degree, ts1 represents a superheat degree threshold value, X represents an opening degree of the current main expansion valve, X' represents an opening degree of the main expansion valve in a last control cycle of the automatic control mode, K1 is a first adjustment coefficient, and optionally, the superheat degree threshold value is 0 < Ts1 < 5.
And when the superheat degree is smaller than the superheat degree threshold value, updating the opening degree according to a preset second adjusting coefficient and the difference value. Illustratively, the following equation is shown:
when Ts < Ts1, X = X' + k2 (Ts-Ts 1), 0 < k2 < 10;
wherein Ts represents a superheat degree, ts1 represents a superheat degree threshold value, X represents an opening degree of the current main expansion valve, X' represents an opening degree of the main expansion valve in a last control cycle of the automatic control mode, K2 is a second adjustment coefficient, and optionally, the superheat degree threshold value is greater than 0 and less than Ts1 and less than 5.
In the technical scheme of the embodiment, under the complete heat recovery mode, the refrigerant quantity is adjusted by adjusting the opening degree of the main expansion valve, the accurate refrigerant flow is matched with different heat dissipation loads of the driving module, the opening degree of the main expansion valve is automatically updated according to the superheat degree after the preset time length, and the refrigerant flow is further adjusted, so that the multi-split system is more energy-saving; the refrigerant heat dissipation effect is adjusted by adjusting the rotating speed of the outdoor fan, so that the driving module can effectively dissipate heat.
Referring to fig. 7, fig. 7 is a fifth embodiment of a heat dissipation control method for a multi-split air conditioning system according to the present invention, where based on any one of the first to fourth embodiments, the step S20 includes:
step S22, when the current temperature belongs to a second sub-range in a first temperature range, determining that the rotating speed is a first rotating speed value, and determining that the opening is a second opening value, wherein the second opening value is larger than the first opening value, and the minimum temperature value in the second sub-range is larger than the maximum temperature value in the first sub-range;
after the step S30, the method further includes:
step S90, after the air conditioner runs for a preset second time, updating the opening according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and S100, controlling the operation of the multi-split air-conditioning system according to the rotating speed and the updated opening degree.
Specifically, the current temperature belongs to a second sub-range in the first temperature range, where the second sub-range is (T2, T3), where T2 is a second temperature threshold, T3 is a third temperature threshold, T2 is greater than the first temperature threshold T1, and T3 is less than a fourth temperature threshold T4. At this time, the current temperature of the driving module is higher, and heat dissipation needs to be performed on the driving module, so that it is determined that the rotation speed of the outdoor fan is the first rotation speed value N1, and the opening degree of the main expansion valve is the second opening value X2, where the first rotation speed value N1 and the second opening value X2 are associated with the second sub-range, and the second opening value N2 is greater than the first opening value N1.
And controlling the four-way valve to be electrified, and controlling the multi-split air-conditioning system to operate according to a first rotating speed value N1 of the outdoor fan and a second opening value X2 of the main expansion valve. After the second time length b is preset, optionally, the second time length is preset to be within a range (0, 10min), the multi-split air-conditioning system enters an automatic control mode, the opening degree is updated according to the difference value of the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value, and optionally, when the superheat degree is larger than or equal to the superheat degree threshold value, the opening degree is updated according to a preset first adjusting coefficient and the difference value; illustratively, the following equation is shown:
when Ts is more than or equal to Ts1, X = X' + k1 (Ts-Ts 1), and k1 is more than 0 and less than 5;
wherein Ts represents a superheat degree, ts1 represents a superheat degree threshold value, X represents an opening degree of the current main expansion valve, X' represents an opening degree of the main expansion valve in a last control cycle of the automatic control mode, K1 is a first adjustment coefficient, and optionally, the superheat degree threshold value is greater than 0 and less than Ts1 and less than 5.
And when the superheat degree is smaller than the superheat degree threshold value, updating the opening degree according to a preset second adjusting coefficient and the difference value. Illustratively, the following equation is shown:
when Ts < Ts1, X = X' + k2 (Ts-Ts 1), 0 < k2 < 10;
wherein Ts represents a superheat degree, ts1 represents a superheat degree threshold value, X represents an opening degree of the current main expansion valve, X' represents an opening degree of the main expansion valve in a last control cycle of the automatic control mode, K2 is a second adjustment coefficient, and optionally, the superheat degree threshold value is greater than 0 and less than Ts1 and less than 5.
In the technical scheme of the embodiment, under the complete heat recovery mode, the refrigerant quantity is adjusted by adjusting the opening degree of the main expansion valve, the accurate refrigerant flow is matched with different heat dissipation loads of the driving module, the opening degree of the main expansion valve is automatically updated according to the superheat degree after the preset time length, and the refrigerant flow is further adjusted, so that the multi-split system is more energy-saving; the refrigerant heat dissipation effect is adjusted by adjusting the rotating speed of the outdoor fan, so that the driving module can effectively dissipate heat.
Referring to fig. 8, fig. 8 is a sixth embodiment of a heat dissipation control method for a multi-split air conditioning system according to the present invention, where based on any one of the first to fifth embodiments, the step S20 includes:
step S23, when the current temperature belongs to a third sub-range in the current temperature range, determining that the rotating speed is a second rotating speed value, and determining that the opening degree of the main expansion valve is a third opening degree value, wherein the second rotating speed value is greater than the first rotating speed value, the third opening degree value is greater than the second opening degree value, and the minimum temperature value in the third sub-range is greater than the maximum temperature value in the second sub-range;
after the step S30, the method further includes:
step S110, after the air conditioner runs for a preset third time, updating the opening according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and S120, controlling the operation of the multi-split air conditioning system according to the rotating speed and the updated opening degree.
Specifically, the current temperature belongs to a third sub-range in the first temperature range, where the second sub-range is (T3, T4), where T3 is a third temperature threshold, T4 is a fourth temperature threshold, and T3 is greater than the second temperature threshold T2, at this time, the current temperature of the driving module is higher, and heat dissipation needs to be performed on the driving module, so that it is determined that the rotation speed of the outdoor fan is the second rotation speed value N2, and it is determined that the opening degree of the main expansion valve is the third opening degree value X3, where the second rotation speed value N2 and the third opening degree value X3 are associated with the third sub-range, the second rotation speed value N2 is greater than the first rotation speed value N1, and the third opening degree value X3 is greater than the second opening degree value X2.
And controlling the four-way valve to be electrified, and controlling the multi-split air-conditioning system to operate according to a second rotating speed value N2 of the outdoor fan and a third opening value X3 of the main expansion valve. After the third time length c is preset, optionally, the third time length is preset to be within a range (0, 10min), the multi-split air-conditioning system enters an automatic control mode, the opening degree is updated according to the difference value of the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value, and optionally, when the superheat degree is larger than or equal to the superheat degree threshold value, the opening degree is updated according to a preset first adjusting coefficient and the difference value; illustratively, the following equation is shown:
when Ts is more than or equal to Ts1, X = X' + k1 (Ts-Ts 1), and k1 is more than 0 and less than 5;
wherein Ts represents a superheat degree, ts1 represents a superheat degree threshold value, X represents an opening degree of the current main expansion valve, X' represents an opening degree of the main expansion valve in a last control cycle of the automatic control mode, K1 is a first adjustment coefficient, and optionally, the superheat degree threshold value is 0 < Ts1 < 5.
And when the superheat degree is smaller than the superheat degree threshold value, updating the opening degree according to a preset second adjusting coefficient and the difference value. Illustratively, the following equation is shown:
when Ts < Ts1, X = X' + k2 (Ts-Ts 1), 0 < k2 < 10;
wherein Ts represents a superheat degree, ts1 represents a superheat degree threshold value, X represents an opening degree of the current main expansion valve, X' represents an opening degree of the main expansion valve in a last control cycle of the automatic control mode, K2 is a second adjustment coefficient, and optionally, the superheat degree threshold value is greater than 0 and less than Ts1 and less than 5.
In the technical scheme of the embodiment, under the complete heat recovery mode, the refrigerant quantity is adjusted by adjusting the opening degree of the main expansion valve, the accurate refrigerant flow is matched with different heat dissipation loads of the driving module, the opening degree of the main expansion valve is automatically updated according to the superheat degree after the preset time length, and the refrigerant flow is further adjusted, so that the multi-split system is more energy-saving; the refrigerant heat dissipation effect is adjusted by adjusting the rotating speed of the outdoor fan, so that the driving module can effectively dissipate heat.
Referring to fig. 9, fig. 9 is a seventh embodiment of a heat dissipation control method for a multi-split air conditioning system according to the present invention, where the seventh embodiment is based on any one of the first to sixth embodiments, a current temperature of a driving module is T, and when T is less than or equal to T1, a four-way valve is powered on, a main expansion valve is closed, and an outdoor fan is closed; and when T1 is greater than T and less than or equal to T2, the four-way valve is electrified, the main expansion valve is opened to a preset first opening X1, the outdoor fan is closed, and after the operation for a preset first time length a, the main expansion valve enters an automatic control mode. And when T2 is greater than T and less than or equal to T3, the four-way valve is electrified, the main expansion valve is opened to a preset second opening X2, the outdoor fan is started and maintains a preset first rotating speed N1, and after the operation is carried out for a preset second time period b, the main expansion valve enters an automatic control mode. And when T3 is more than T and less than or equal to T4, the four-way valve is electrified, the main expansion valve is opened to a preset third opening degree X3, the outdoor fan is started and maintains a preset second rotating speed N2, and after the operation for the third time c, the main expansion valve enters an automatic control mode. When T4 is less than T, the four-way valve is powered off, the main expansion valve is opened to the maximum opening degree, and meanwhile, the outdoor fan is adjusted to the maximum rotating speed. Wherein T1 is more than 0 and more than T2 and more than T3 and more than T4 and less than 100; x1 is more than X2 and more than X3; n1 is less than N2.
And acquiring the current ambient temperature, wherein T1-T4, X1-X3 and N1-N2 are different in different ambient temperatures. Alternatively, the higher the ambient temperature, the higher the first temperature threshold T1, the second temperature threshold T2, the third temperature threshold T3, and the fourth temperature threshold T4 may be adjusted upward as appropriate. Optionally, the higher the ambient temperature is, the first opening degree value X1, the second opening degree value X2, and the third opening degree value X3 of the main expansion valve may be appropriately adjusted upward, so as to facilitate subsequent automatic control. Optionally, the higher the ambient temperature is, the lower the first rotation speed value N1 and the second rotation speed value N2 of the outdoor fan may be appropriately adjusted, so that the air conditioning system operates more energy-saving.
The invention also provides a multi-split air conditioning system, which comprises a memory, a processor and a multi-split air conditioning system heat dissipation control program stored in the memory and executable on the processor, wherein the multi-split air conditioning system heat dissipation control program is executed by the processor to realize the steps of the multi-split air conditioning system heat dissipation control method in the embodiment.
The present invention also provides a computer-readable storage medium storing a multi-split air conditioning system heat dissipation control program, which, when executed by a processor, implements the steps of the multi-split air conditioning system heat dissipation control method according to the above embodiment.
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, system, 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, system, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a" \8230; "does not exclude the presence of additional like elements in a process, system, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the system 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. 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 computer-readable storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a parking management device, an air conditioner, or a network device) to execute the system 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 heat dissipation control method of the multi-split air-conditioning system is characterized in that the multi-split air-conditioning system is provided with a four-way valve and a main expansion valve, the four-way valve is respectively connected with an indoor unit, a compressor and an outdoor unit, the main expansion valve is arranged on the side of the outdoor unit, and the heat dissipation control method of the multi-split air-conditioning system comprises the following steps:
detecting the current temperature of a driving module of a compressor in a complete heat recovery mode of the multi-split air conditioning system;
when the current temperature belongs to a first temperature range, determining the opening degree of a main expansion valve and the rotating speed of an outdoor unit fan;
and controlling the four-way valve to be electrified, and controlling the multi-split air-conditioning system to operate according to the opening degree and the rotating speed so as to enable the refrigerant to dissipate heat through the outdoor heat exchanger and the refrigerant heat dissipation module.
2. The heat dissipation control method of a multi-split air conditioning system as set forth in claim 1, wherein after the step of detecting a current temperature of a driving module of a compressor, further comprising:
when the current temperature belongs to a second temperature range, determining that the main expansion valve is in the maximum opening degree and the outdoor fan is in the maximum rotating speed, wherein the minimum temperature value in the second temperature range is greater than the maximum temperature value in the first temperature range;
and controlling the four-way valve to be powered off, and controlling the multi-split air-conditioning system to operate according to the maximum opening and the maximum rotating speed so that the refrigerant is radiated through the outdoor heat exchanger and the refrigerant radiating module.
3. The multi-split air conditioning system heat dissipation control method as set forth in claim 1, wherein after the step of detecting the current temperature of the driving module of the compressor, further comprising:
and when the current temperature belongs to a third temperature range, controlling the four-way valve to be powered on, controlling the main expansion valve and the outdoor fan to be closed, wherein the maximum temperature value in the third temperature range is smaller than the minimum temperature value in the first temperature range.
4. The method for controlling heat dissipation in a multi-connected air conditioning system as claimed in claim 1, wherein the determining the opening degree of the main expansion valve and the rotational speed of the outdoor unit fan when the current temperature falls within a first temperature range comprises:
when the current temperature belongs to a first sub-range in a first temperature range, determining that the rotating speed is zero and determining that the opening degree is a first opening degree value;
after the step of controlling the four-way valve to be powered on and controlling the operation of the multi-split air-conditioning system according to the opening degree and the rotating speed, the method further comprises the following steps:
after the first time length is preset, updating the opening degree according to the difference value of the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and controlling the operation of the multi-split air conditioning system according to the rotating speed and the updated opening degree.
5. The method for controlling heat dissipation in a multi-split air conditioning system as claimed in claim 4, wherein the determining the opening degree of the main expansion valve and the rotational speed of the outdoor unit fan when the current temperature falls within a first temperature range comprises:
when the current temperature belongs to a second sub-range in a first temperature range, determining that the rotating speed is a first rotating speed value, and determining that the opening is a second opening value, wherein the second opening value is larger than the first opening value, and the minimum temperature value in the second sub-range is larger than the maximum temperature value in the first sub-range;
after the step of controlling the four-way valve to be powered on and controlling the operation of the multi-split air conditioning system according to the opening degree and the rotating speed, the method further comprises the following steps:
after the air conditioner runs for a preset second time, updating the opening according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and controlling the operation of the multi-split air conditioning system according to the rotating speed and the updated opening degree.
6. The method for controlling heat dissipation in a multi-split air conditioning system as claimed in claim 5, wherein the determining the opening degree of the main expansion valve and the rotational speed of the outdoor unit fan when the current temperature falls within a first temperature range comprises:
when the current temperature belongs to a third sub-range in the current temperature range, determining that the rotating speed is a second rotating speed value, and determining that the opening degree of the main expansion valve is a third opening degree value, wherein the second rotating speed value is greater than the first rotating speed value, the third opening degree value is greater than the second opening degree value, and the minimum value of the temperature in the third sub-range is greater than the maximum temperature value in the second sub-range;
after the step of controlling the four-way valve to be powered on and controlling the operation of the multi-split air conditioning system according to the opening degree and the rotating speed, the method further comprises the following steps:
after the air conditioner operates for a preset third time, updating the opening according to the difference value between the superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value;
and controlling the operation of the multi-split air-conditioning system according to the rotating speed and the updated opening degree.
7. The multi-split air conditioning system heat dissipation control method as recited in any one of claims 4 to 6, wherein the updating the opening degree according to a difference between a superheat degree of the outdoor heat exchanger and a preset superheat degree threshold value comprises:
when the degree of superheat is larger than or equal to the degree of superheat threshold value, updating the opening degree according to a preset first adjusting coefficient and the difference value;
and when the degree of superheat is smaller than the degree of superheat threshold value, updating the opening degree according to a preset second adjusting coefficient and the difference value.
8. The multi-split air conditioning system heat dissipation control method as set forth in claim 1, wherein the first temperature range is determined by an outdoor temperature.
9. A multi-split air conditioning system comprising a memory, a processor, and a multi-split air conditioning system heat dissipation control program stored in the memory and executable on the processor, wherein the multi-split air conditioning system heat dissipation control program, when executed by the processor, implements the steps of the multi-split air conditioning system heat dissipation control method as set forth in any one of claims 1 to 8.
10. A computer-readable storage medium, wherein the computer-readable storage medium stores a multi-on-line air conditioning system heat dissipation control program, which, when executed by a processor, implements the steps of the multi-on-line air conditioning system heat dissipation control method as set forth in any one of claims 1 to 8.
CN202210800461.1A 2022-07-08 2022-07-08 Multi-split air conditioning system, heat dissipation control method thereof and computer readable storage medium Pending CN115183392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210800461.1A CN115183392A (en) 2022-07-08 2022-07-08 Multi-split air conditioning system, heat dissipation control method thereof and computer readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210800461.1A CN115183392A (en) 2022-07-08 2022-07-08 Multi-split air conditioning system, heat dissipation control method thereof and computer readable storage medium

Publications (1)

Publication Number Publication Date
CN115183392A true CN115183392A (en) 2022-10-14

Family

ID=83517645

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210800461.1A Pending CN115183392A (en) 2022-07-08 2022-07-08 Multi-split air conditioning system, heat dissipation control method thereof and computer readable storage medium

Country Status (1)

Country Link
CN (1) CN115183392A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913403A (en) * 2015-06-11 2015-09-16 广东美的暖通设备有限公司 Motor cooling structure, air conditioner and motor cooling method
CN106338112A (en) * 2016-10-21 2017-01-18 珠海格力电器股份有限公司 Air conditioner heat recycling system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913403A (en) * 2015-06-11 2015-09-16 广东美的暖通设备有限公司 Motor cooling structure, air conditioner and motor cooling method
CN106338112A (en) * 2016-10-21 2017-01-18 珠海格力电器股份有限公司 Air conditioner heat recycling system

Similar Documents

Publication Publication Date Title
CN110848910B (en) Air conditioner, air conditioner control method and device and readable storage medium
CN108168028B (en) Method for refrigerating and defrosting of mobile air conditioner, mobile air conditioner and storage medium
CN109945401B (en) Control method and device of air conditioner and air conditioner
US10746449B2 (en) Method for controlling air conditioner
CN111023455B (en) Defrosting control method, defrosting control device, air conditioner and readable storage medium
CN111023515B (en) Air conditioner, refrigeration control method of air conditioner and storage medium
US11371743B2 (en) Air conditioning system
CN111442510B (en) Multi-split air conditioning system, control method and control device thereof, and storage medium
CN106895623B (en) Exhaust temperature control method of air conditioner
CN114440414A (en) Multi-split air conditioner, control method thereof and computer storage medium
CN113757945B (en) Air conditioner control method and device, air conditioner and computer readable storage medium
EP3667203A1 (en) Refrigeration device
CN113587384B (en) Control method and device of air conditioner, air conditioner and storage medium
CN108088031B (en) Defrosting control method for multi-split air conditioner, multi-split air conditioner and storage medium
CN112606654B (en) Control method and device, medium, equipment and system of vehicle-mounted heat pump air conditioning system
JP2023544859A (en) Air conditioner, control method and computer readable storage medium
CN111503854B (en) Air conditioning system, anti-condensation control method and device thereof, and storage medium
JP2011007482A (en) Air conditioner
JP5517891B2 (en) Air conditioner
CN115183392A (en) Multi-split air conditioning system, heat dissipation control method thereof and computer readable storage medium
CN112781187A (en) Air conditioner control method, air conditioner and readable storage medium
CN114811863B (en) Control method of multi-split air conditioner, controller, air conditioner and medium
CN111256205A (en) Air conditioner heat dissipation control system and method and air conditioning equipment
JP3513740B2 (en) Air conditioner
CN113739335B (en) Control method for multi-split air conditioner refrigeration expansion valve and multi-split air conditioner

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