CN114811854A - Method, device and system for controlling multi-split air conditioning system and storage medium - Google Patents

Method, device and system for controlling multi-split air conditioning system and storage medium Download PDF

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Publication number
CN114811854A
CN114811854A CN202210417609.3A CN202210417609A CN114811854A CN 114811854 A CN114811854 A CN 114811854A CN 202210417609 A CN202210417609 A CN 202210417609A CN 114811854 A CN114811854 A CN 114811854A
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China
Prior art keywords
indoor unit
outdoor
indoor
conditioning system
air conditioning
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Granted
Application number
CN202210417609.3A
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Chinese (zh)
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CN114811854B (en
Inventor
王河坡
王海胜
张铭
张晓迪
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Priority to CN202210417609.3A priority Critical patent/CN114811854B/en
Publication of CN114811854A publication Critical patent/CN114811854A/en
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Publication of CN114811854B publication Critical patent/CN114811854B/en
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    • 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
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/43—Defrosting; Preventing freezing of indoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F24F11/67—Switching between heating and cooling modes
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application relates to the technical field of air conditioners, and discloses a method for controlling a multi-split air conditioner system, which comprises the following steps: acquiring the running state of each indoor unit; the operation state comprises heating operation, cooling operation or non-operation; under the condition that a heating operation indoor unit and a non-operation indoor unit exist at the same time, room environment information of the non-operation indoor unit is obtained; and controlling the indoor unit which is not operated to adjust the operation state to be refrigeration operation according to the room environment information. The heating device can recycle waste heat to improve heating efficiency, and therefore the heating speed of a room where a user is located can be shortened, and improvement of actual experience of the user is facilitated. Simultaneously, through increasing idle indoor set execution refrigeration operation in the multi-split air conditioning system, the refrigerating capacity of off-premises station can effectively be shared to this application to reduce the frosting speed of off-premises station heat exchanger, be favorable to delaying the arrival of defrosting stage. The application also discloses a device and a system for controlling the multi-split air conditioning system and a storage medium.

Description

Method, device and system for controlling multi-split air conditioning system and storage medium
Technical Field
The present disclosure relates to the field of air conditioning technologies, and in particular, to a method, an apparatus, and a system for controlling a multi-split air conditioning system, and a storage medium.
Background
At present, for a multi-split air conditioning system, a user can start an indoor unit of a room to be heated according to personal requirements in winter. At this time, the indoor units in other rooms are often in a standby state or a power-off state. But the heat generated in the heating room is gradually transferred to the rest of the room due to the propagation of the wall and the air medium. In order to recover the waste heat, the related art proposes a defrosting control method, including: acquiring the current running state and the accumulated running time of the inner fan; judging the state of the room where the inner fan is located according to the current operation state and the accumulated operation time of the inner fan; the room state of the inner fan comprises a normal use room, a common room and an uncommon room; and determining the opening degree of the electronic expansion valve and/or the operation parameters of the internal fan according to the state of the room where the internal fan is located.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the related art focuses on using idle heat during the defrosting stage to shorten the defrosting cycle. But the function of recovering waste heat can not be exerted in the normal heating process of the air conditioner. Therefore, the related art cannot improve the efficiency of the indoor unit during heating, and is not effective when the user wants to rapidly heat the room.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method, a device and a system for controlling a multi-split air conditioning system, and a storage medium, which can improve heating efficiency, thereby shortening the heating speed of a room where a user is located, and being beneficial to improving the actual experience of the user.
In some embodiments, the method comprises:
acquiring the running state of each indoor unit; the operation state comprises heating operation, cooling operation or non-operation;
under the condition that a heating operation indoor unit and a non-operation indoor unit exist at the same time, room environment information of the non-operation indoor unit is obtained;
and controlling the indoor unit which is not operated to adjust the operation state to be refrigeration operation according to the room environment information.
In some embodiments, the apparatus includes a processor configured to perform the above-described method for controlling the multi-split air conditioning system, and a memory storing program instructions, when the program instructions are executed.
In some embodiments, the multi-split air conditioning system includes:
an outdoor unit;
the indoor units are arranged in the rooms in a one-to-one correspondence manner;
the device for controlling the multi-split air conditioning system is electrically connected with the outdoor unit and the indoor units.
In some embodiments, the storage medium stores program instructions that, when executed, perform the method for controlling a multi-split air conditioning system as described above.
The method, the device and the system for controlling the multi-split air conditioning system and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:
according to the embodiment of the disclosure, the working or idle conditions of the indoor units in different rooms can be better judged by monitoring the running state of each indoor unit. By monitoring the environmental information in the room where the idle indoor unit is located, the indoor unit meeting the waste heat recovery condition can be screened out, and the indoor unit is controlled to execute the refrigeration operation, so that the heat in the room can be recycled. Through with waste heat recovery, this disclosed embodiment can promote the heating efficiency to can shorten the programming rate in user's place room, be favorable to improving user's actual experience. Meanwhile, the idle indoor units are added in the multi-split air conditioning system to perform refrigeration operation, so that the refrigeration capacity of the outdoor units can be effectively shared, and the heat absorbed by the outdoor units from the outside can be reduced. Therefore, the embodiment of the disclosure can also reduce the frosting speed of the heat exchanger of the outdoor unit, and is beneficial to delaying the arrival of the defrosting stage.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic view illustrating a method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure;
fig. 2 is a schematic view of another method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure;
fig. 3 is a schematic view of another method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of another method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure;
fig. 5 is a schematic view of another method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure;
fig. 6 is a schematic view of another method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of an apparatus for controlling a multi-split air conditioning system according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.
At present, for a multi-split air conditioning system, a user can start an indoor unit of a room to be heated according to personal requirements in winter. At this time, the indoor units in other rooms are often in a standby state or a power-off state. But the heat generated in the heating room is gradually transferred to the rest of the room due to the propagation of the wall and the air medium. In order to recover the waste heat, the related art proposes a defrosting control method, including: acquiring the current running state and the accumulated running time of the inner fan; judging the state of the room where the inner fan is located according to the current operation state and the accumulated operation time of the inner fan; the room state of the inner fan comprises a normal use room, a common room and an uncommon room; and determining the opening degree of the electronic expansion valve and/or the operation parameters of the internal fan according to the state of the room where the internal fan is located.
The related art focuses on using idle heat during the defrosting stage to shorten the defrosting cycle. But the function of recovering waste heat can not be exerted in the normal heating process of the air conditioner. Therefore, the related art cannot improve the efficiency of the indoor unit during heating, and is not effective when the user wants to rapidly heat the room.
Referring to fig. 1, an embodiment of the present disclosure provides a method for controlling a multi-split air conditioning system, including:
and S101, the processor acquires the running state of each indoor unit.
The operation state includes heating operation, cooling operation or non-operation.
And S102, under the condition that the heating operation indoor unit and the non-operation indoor unit exist at the same time, the processor acquires the room environment information of the non-operation indoor unit.
And S103, controlling the indoor unit which is not operated to adjust the operation state to be refrigeration operation by the processor according to the room environment information.
By adopting the method for controlling the multi-split air-conditioning system provided by the embodiment of the disclosure, the working or idle conditions of the indoor units in different rooms can be better judged by monitoring the running state of each indoor unit. By monitoring the environmental information in the room where the idle indoor unit is located, the indoor unit meeting the waste heat recovery condition can be screened out, and the indoor unit is controlled to execute the refrigeration operation, so that the heat in the room can be recycled. Through with waste heat recovery, this disclosed embodiment can promote the heating efficiency to can shorten the programming rate in user's place room, be favorable to improving user's actual experience. Meanwhile, the idle indoor units are added in the multi-split air conditioning system to perform refrigeration operation, so that the refrigeration capacity of the outdoor units can be effectively shared, and the heat absorbed by the outdoor units from the outside can be reduced. Therefore, the embodiment of the disclosure can also reduce the frosting speed of the heat exchanger of the outdoor unit, and is beneficial to delaying the arrival of the defrosting stage.
Alternatively, the method for controlling the multi-split air conditioning system may be performed in the multi-split air conditioning system, or may be performed in a server communicating with the multi-split air conditioning system. In the embodiments of the present disclosure, a description is made of a scheme in which a processor in a multi-split air conditioning system is used as an execution subject.
Optionally, the processor controls the indoor unit not in operation to adjust the operation state to the cooling operation according to the room environment information, including: and under the condition that the indoor environment temperature is higher than the indoor preset temperature, the processor controls the indoor unit which is not operated to adjust the operation state to the refrigeration operation. Like this, through monitoring the current ambient temperature in the room, this disclosed embodiment can carry out further screening to idle indoor set. For the indoor unit with the indoor temperature meeting the waste heat recovery condition, the indoor unit is controlled to execute the refrigeration operation, and the waste heat in the room can be recycled. Meanwhile, the phenomenon that the indoor unit frosts an internal heat exchanger due to refrigeration operation is avoided under the condition that the room is at an uncomfortable temperature.
Optionally, the processor controls the indoor unit not in operation to adjust the operation state to the cooling operation according to the room environment information, including: and under the condition that the temperature of the coil of the heat exchanger of the indoor unit is higher than the preset temperature of the first coil, the processor controls the indoor unit which is not operated to adjust the operation state to refrigeration operation. Like this, through monitoring the heat exchanger coil pipe temperature of indoor set, this disclosed embodiment can carry out further screening to idle indoor set. For the indoor unit with the temperature of the heat exchanger coil conforming to the waste heat recovery condition, the embodiment of the disclosure can recycle the waste heat in the room by controlling the indoor unit to execute the refrigeration operation. Meanwhile, the phenomenon that the indoor unit frosts an internal heat exchanger due to refrigeration operation is avoided under the condition that the room is at an uncomfortable temperature.
With reference to fig. 2, another method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure includes:
s201, the processor acquires the running state of each indoor unit.
The operation state includes heating operation, cooling operation or non-operation.
And S202, under the condition that the heating operation indoor unit and the non-operation indoor unit exist at the same time, the processor acquires the room environment information of the non-operation indoor unit.
And S203, under the condition that the indoor environment temperature is higher than the indoor preset temperature, the processor controls the indoor unit which is not operated to adjust the operation state to the refrigeration operation.
By adopting the method for controlling the multi-split air-conditioning system provided by the embodiment of the disclosure, the working or idle conditions of the indoor units in different rooms can be better judged by monitoring the running state of each indoor unit. By monitoring the ambient temperature in the room where the idle indoor unit is located, the indoor unit meeting the waste heat recovery condition can be screened out, and the indoor unit is controlled to execute the refrigeration operation, so that the heat in the room can be recycled. Meanwhile, the phenomenon that the indoor unit frosts an internal heat exchanger due to refrigeration operation is avoided under the condition that the room is at an uncomfortable temperature. Through with waste heat recovery, this disclosed embodiment can promote the heating efficiency to can shorten the programming rate in user's place room, be favorable to improving user's actual experience. Meanwhile, the idle indoor units are added in the multi-split air conditioning system to perform refrigeration operation, so that the refrigeration capacity of the outdoor units can be effectively shared, and the heat absorbed by the outdoor units from the outside can be reduced. Therefore, the embodiment of the disclosure can also reduce the frosting speed of the heat exchanger of the outdoor unit, and is beneficial to delaying the arrival of the defrosting stage.
Alternatively, the method for controlling the multi-split air conditioning system may be performed in the multi-split air conditioning system, or may be performed in a server communicating with the multi-split air conditioning system. In the embodiments of the present disclosure, a description is made of a scheme in which a processor in a multi-split air conditioning system is used as an execution subject.
Optionally, the indoor preset temperature may be set according to the actual needs of the user. Preferably, the indoor preset temperature may be set to 0 ℃. This value can also be adjusted based on other room environment information. For example, in the case of combining the indoor ambient humidity, the indoor preset temperature may be adjusted to any other value such as 0.5 ℃ or 1 ℃.
Optionally, the method for controlling a multi-split air conditioning system further includes: and under the condition that the indoor environment temperature is less than or equal to the indoor preset temperature, the processor controls the indoor unit which is not operated to maintain the operation state unchanged, or adjusts the operation state into heating operation. Therefore, the indoor unit with the indoor temperature not meeting the waste heat recovery condition is kept in the shutdown state by controlling the indoor unit, and the phenomenon that the indoor heat exchanger frosts due to the fact that the indoor unit is forcibly controlled to perform refrigeration operation can be avoided. In addition, aiming at a room with lower indoor temperature and easy frosting of the heat exchanger of the indoor unit, the heating operation of the corresponding indoor unit is controlled, and the frosting degree of the heat exchanger of the indoor unit can be effectively reduced.
With reference to fig. 3, another method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure includes:
and S301, the processor acquires the running state of each indoor unit.
The operation state includes heating operation, cooling operation or non-operation.
And S302, under the condition that the heating operation indoor unit and the non-operation indoor unit exist at the same time, the processor acquires the room environment information of the non-operation indoor unit.
S303, the processor determines the indoor personnel condition.
S304, under the condition that no person is in the room, the processor acquires the indoor environment temperature.
And S305, under the condition that the indoor environment temperature is higher than the indoor preset temperature, the processor controls the indoor unit which is not operated to adjust the operation state to the cooling operation.
By adopting the method for controlling the multi-split air-conditioning system provided by the embodiment of the disclosure, the working or idle conditions of the indoor units in different rooms can be better judged by monitoring the running state of each indoor unit. For an idle indoor unit, the embodiment of the disclosure first monitors whether a user exists indoors or not to perform preliminary screening on the idle indoor unit. Based on the screening result, the embodiment of the disclosure further monitors the ambient temperature in the unmanned room to further screen out the indoor units meeting the waste heat recovery condition. And by controlling the air conditioner to perform cooling operation, the embodiment of the disclosure can recycle the heat in the room. Meanwhile, the phenomenon that the indoor unit frosts an internal heat exchanger due to refrigeration operation is avoided under the condition that the room is at an uncomfortable temperature. Through with waste heat recovery, this disclosed embodiment can promote the heating efficiency to can shorten the programming rate in user's place room, be favorable to improving user's actual experience. Meanwhile, the idle indoor units are added in the multi-split air conditioning system to perform refrigeration operation, so that the refrigeration capacity of the outdoor units can be effectively shared, and the heat absorbed by the outdoor units from the outside can be reduced. Therefore, the embodiment of the disclosure can also reduce the frosting speed of the heat exchanger of the outdoor unit, and is beneficial to delaying the arrival of the defrosting stage.
Alternatively, the method for controlling the multi-split air conditioning system may be performed in the multi-split air conditioning system, or may be performed in a server communicating with the multi-split air conditioning system. In the embodiments of the present disclosure, a description is made of a scheme in which a processor in a multi-split air conditioning system is used as an execution subject.
Optionally, the method for controlling a multi-split air conditioning system further includes: and under the condition that people exist in the indoor space, the processor controls the indoor unit which is not operated to maintain the operation state unchanged. Therefore, for a room with a person, the corresponding indoor unit is controlled not to act, and the phenomenon that the user is uncomfortable due to the fact that the running state of the indoor unit is changed can be avoided.
With reference to fig. 4, another method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure includes:
s401, the processor acquires the running state of each indoor unit.
The operation state includes heating operation, cooling operation or non-operation.
S402, under the condition that the heating operation indoor unit and the non-operation indoor unit exist at the same time, the processor acquires the room environment information of the non-operation indoor unit.
And S403, under the condition that the indoor environment temperature is higher than the indoor preset temperature, the processor controls the indoor unit which is not operated to adjust the operation state to the refrigeration operation.
S404, the processor acquires the outdoor environment temperature.
S405, the processor adjusts the rotating speed of an inner fan and/or the opening of the electronic expansion valve of the indoor unit which is not operated according to the outdoor environment temperature.
By adopting the method for controlling the multi-split air-conditioning system provided by the embodiment of the disclosure, the working or idle conditions of the indoor units in different rooms can be better judged by monitoring the running state of each indoor unit. By monitoring the ambient temperature in the room where the idle indoor unit is located, the indoor unit meeting the waste heat recovery condition can be screened out, and the indoor unit is controlled to execute the refrigeration operation, so that the heat in the room can be recycled. Meanwhile, the phenomenon that the indoor unit frosts an internal heat exchanger due to refrigeration operation is avoided under the condition that the room is at an uncomfortable temperature. Through with waste heat recovery, this disclosed embodiment can promote the heating efficiency to can shorten the programming rate in user's place room, be favorable to improving user's actual experience. Meanwhile, the idle indoor units are added in the multi-split air conditioning system to perform refrigeration operation, so that the refrigeration capacity of the outdoor units can be effectively shared, and the heat absorbed by the outdoor units from the outside can be reduced. By combining with monitoring of the working environment of the outdoor unit, the embodiment of the disclosure can reasonably adjust the operation parameters of the indoor unit, so as to realize reasonable distribution of the refrigerating capacities of the indoor unit and the outdoor unit. Therefore, the frosting speed of the heat exchanger of the outdoor unit can be further reduced, and the arrival of the defrosting stage can be delayed.
Alternatively, the method for controlling the multi-split air conditioning system may be performed in the multi-split air conditioning system, or may be performed in a server communicating with the multi-split air conditioning system. In the embodiments of the present disclosure, a description is made of a scheme in which a processor in a multi-split air conditioning system is used as an execution subject.
Optionally, the rotation speed of the internal fan and the opening of the electronic expansion valve of the indoor unit which is not in operation are adjusted, and the adjustment may be performed simultaneously or separately. Therefore, the working efficiency of the indoor unit can be further improved under the condition of ensuring the normal operation of the indoor unit.
Optionally, the processor adjusts the rotation speed of the internal fan and/or the opening of the electronic expansion valve of the indoor unit not in operation according to the outdoor environment temperature, and includes: under the condition that the outdoor environment temperature is higher than a first outdoor preset temperature, the processor adjusts the rotating speed of an inner fan of the indoor unit which is not operated to be a first rotating speed, and/or the processor adjusts the opening degree of an electronic expansion valve of the indoor unit which is not operated to be a first opening degree; under the condition that the outdoor environment temperature is less than or equal to the first outdoor preset temperature and greater than the second outdoor preset temperature, the processor adjusts the rotating speed of an inner fan of the indoor unit which is not operated to be a second rotating speed, and/or the processor adjusts the opening of an electronic expansion valve of the indoor unit which is not operated to be a second opening; and under the condition that the outdoor environment temperature is less than or equal to the second outdoor preset temperature, the processor adjusts the rotating speed of the inner fan of the indoor unit which is not operated to be a third rotating speed, and/or the processor adjusts the opening degree of the electronic expansion valve of the indoor unit which is not operated to be a third opening degree. Therefore, based on different outdoor environment temperatures, the embodiment of the disclosure can control the inner fan and/or the electronic expansion valve to execute different functional adjustments, so as to realize accurate regulation of the refrigerating capacity of the indoor unit in unit time. The embodiment of the disclosure can more reasonably complete the distribution of the cooling capacity of the indoor unit and the outdoor unit due to the fact that the difference of the working conditions of the outdoor unit is fully considered. The defrosting process of the outdoor unit is favorably delayed.
Specifically, the first outdoor preset temperature is a critical environment temperature at which an outdoor unit heat exchanger starts to frost when the multi-split air-conditioning system is in a heating mode. In some embodiments, the first outdoor preset temperature may be set to 15 ℃. Under the condition that the multi-split air conditioning system is in a heating mode, the outdoor unit heat exchanger plays a role of an evaporator and can continuously absorb heat from the external environment. If the outdoor ambient temperature is lower than the first outdoor preset temperature, the ambient temperature of the outdoor unit gradually decreases to the frosting critical temperature due to the heat absorption process of the evaporator. After a period of time, the heat exchanger of the outdoor unit begins to frost, and the working efficiency of the heat exchanger is further influenced.
Specifically, the second outdoor preset temperature is a critical environment temperature at which the outdoor unit heat exchanger starts to frost when the multi-split air conditioning system is in the standby mode. In some embodiments, the second outdoor preset temperature may be set to 1 ℃. If the outdoor environment temperature is lower than the second outdoor preset temperature, the outdoor heat exchanger begins to frost due to the fact that the ambient temperature is too low, and therefore the working efficiency of the heat exchanger is affected.
Alternatively, the first outdoor preset temperature and the second outdoor preset temperature may be adjusted according to specific outdoor environment information. However, it should be noted that the first outdoor preset temperature is greater than the second outdoor preset temperature. For example, in combination with the outdoor ambient humidity, the first outdoor preset temperature may be adjusted to 16 ℃ and the second outdoor preset temperature may be adjusted to 2 ℃.
Optionally, the first rotational speed is less than the second rotational speed, which is less than the third rotational speed. Preferably, the first rotation speed is a low wind speed gear, the second rotation speed is a medium wind speed gear, and the third rotation speed is a high wind speed gear. Therefore, if the outdoor unit is in a working environment with high outdoor temperature, the outdoor unit heat exchanger is not easy to frost even if the multi-split air conditioning system is in a heating mode. Therefore, the rotating speed of the inner fan of the indoor unit which is not operated can be reduced adaptively, so that the refrigerating capacity of the indoor unit is reduced, and the possibility of frosting of the heat exchanger of the indoor unit is reduced. If the outdoor unit is in a working environment with lower outdoor temperature, the outdoor unit heat exchanger can frost when the multi-split air-conditioning system is in a heating mode. At this moment, the rotating speed of the inner fan of the indoor unit which is not operated is slightly increased, so that the refrigerating capacity of the outdoor unit is shared by the idle indoor units, the frosting speed of the heat exchanger of the outdoor unit can be reduced, and the delay of the defrosting stage is facilitated. And if the outdoor unit is in a working environment with extremely low outdoor temperature, no matter the multi-split air conditioning system is in a heating mode or a standby mode, the heat exchanger of the outdoor unit can be frosted. Therefore, the rotation speed of the inner fan needs to be adjusted to the maximum in the embodiment of the disclosure, so as to reduce the refrigerating capacity required by the outdoor unit as much as possible, thereby avoiding the phenomenon that the frosting degree of the heat exchanger of the outdoor unit is rapidly intensified, and further the heating process is influenced.
Optionally, the first opening degree is smaller than the second opening degree, and the second opening degree is smaller than the third opening degree. Preferably, the first opening degree is a small opening degree gear, the second opening degree is a medium opening degree gear, and the third opening degree is a large wind speed gear. Therefore, if the outdoor unit is in a working environment with high outdoor temperature, the outdoor unit heat exchanger is not easy to frost even if the multi-split air conditioning system is in a heating mode. Therefore, the opening degree of the electronic expansion valve of the indoor unit which is not operated can be reduced adaptively by the embodiment of the disclosure, so that the refrigerating capacity required to be borne by the indoor unit is reduced, and the possibility of frosting of the heat exchanger of the indoor unit is reduced. If the outdoor unit is in a working environment with lower outdoor temperature, the outdoor unit heat exchanger can be frosted when the multi-split air-conditioning system is in a heating mode. At this moment, the opening degree of the electronic expansion valve of the indoor unit which is not operated is slightly increased in the embodiment of the disclosure, so that the refrigerating capacity of the outdoor unit is shared by the idle indoor units, the frosting speed of the heat exchanger of the outdoor unit can be reduced, and the delay of the defrosting stage is facilitated. And if the outdoor unit is in a working environment with extremely low outdoor temperature, no matter the multi-split air conditioning system is in a heating mode or a standby mode, the heat exchanger of the outdoor unit can be frosted. Therefore, the opening of the electronic expansion valve needs to be adjusted to the maximum in the embodiment of the disclosure, so as to reduce the cooling capacity required by the outdoor unit as much as possible, thereby avoiding the phenomenon that the frosting degree of the heat exchanger of the outdoor unit is rapidly intensified, and further the heating process is influenced.
With reference to fig. 5, another method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure includes:
s501, the processor acquires the running state of each indoor unit.
The operation state includes heating operation, cooling operation or non-operation.
And S502, under the condition that the heating operation indoor unit and the non-operation indoor unit exist at the same time, the processor acquires the room environment information of the non-operation indoor unit.
And S503, under the condition that the indoor environment temperature is higher than the indoor preset temperature, the processor controls the indoor unit which is not operated to adjust the operation state to the refrigerating operation.
S504, the processor obtains the outdoor environment temperature.
And S505, the processor adjusts the rotating speed of an internal fan and/or the opening of the electronic expansion valve of the indoor unit which is not operated according to the outdoor environment temperature.
S506, the processor obtains the temperature of the coil of the heat exchanger of the outdoor unit.
And S507, the processor corrects the rotating speed of an internal fan and/or the opening of the electronic expansion valve of the indoor unit which is not operated according to the temperature of the coil pipe of the heat exchanger of the outdoor unit.
By adopting the method for controlling the multi-split air-conditioning system provided by the embodiment of the disclosure, the working or idle conditions of the indoor units in different rooms can be better judged by monitoring the running state of each indoor unit. By monitoring the ambient temperature in the room where the idle indoor unit is located, the indoor unit meeting the waste heat recovery condition can be screened out, and the indoor unit is controlled to execute the refrigeration operation, so that the heat in the room can be recycled. Meanwhile, the phenomenon that the indoor unit frosts an internal heat exchanger due to refrigeration operation is avoided under the condition that the room is at an uncomfortable temperature. Through with waste heat recovery, this disclosed embodiment can promote the heating efficiency to can shorten the programming rate in user's place room, be favorable to improving user's actual experience. Meanwhile, the idle indoor units are added in the multi-split air conditioning system to perform refrigeration operation, so that the refrigeration capacity of the outdoor units can be effectively shared, and the heat absorbed by the outdoor units from the outside can be reduced. By combining the monitoring of the working environment of the outdoor unit and the temperature of the coil pipe of the heat exchanger of the outdoor unit, the embodiment of the disclosure can more accurately adjust the operation parameters of the indoor unit so as to realize reasonable distribution of the refrigerating capacity of the indoor unit and the outdoor unit. Therefore, the frosting speed of the heat exchanger of the outdoor unit can be further reduced, and the arrival of the defrosting stage can be delayed.
Alternatively, the method for controlling the multi-split air conditioning system may be performed in the multi-split air conditioning system, or may be performed in a server communicating with the multi-split air conditioning system. In the embodiments of the present disclosure, a description is made of a scheme in which a processor in a multi-split air conditioning system is used as an execution subject.
Optionally, the processor corrects the rotation speed of the internal fan and/or the opening of the electronic expansion valve of the indoor unit not in operation according to the temperature of the coil of the heat exchanger of the outdoor unit, and the method includes: and under the condition that the temperature of the coil of the heat exchanger of the outdoor unit is less than or equal to the preset temperature of the second coil, the rotating speed of an inner fan of the indoor unit which is not operated is increased by the processor, and/or the opening degree of an electronic expansion valve of the indoor unit which is not operated is increased by the processor. Therefore, by monitoring the temperature of the coil pipe of the heat exchanger of the outdoor unit, the frosting condition of the outdoor unit can be judged more accurately, so that the operation parameters of the indoor unit can be adjusted reasonably, and the refrigerating capacity of the indoor unit and the refrigerating capacity of the outdoor unit can be distributed reasonably. Especially, under the condition that the coil pipe of the heat exchanger of the outdoor unit is extremely low and the frosting phenomenon of the heat exchanger is easy to occur, the working parameters of the indoor unit can be increased to further share the refrigerating capacity of the outdoor unit. Therefore, the frosting speed of the heat exchanger of the outdoor unit can be reduced, and the delay of the defrosting stage is facilitated.
Specifically, the preset temperature of the second coil is a critical coil temperature at which the outdoor heat exchanger is prone to frosting. In some embodiments, the second coil preset temperature may be set at-2 ℃. If the temperature of the coil of the outdoor heat exchanger is lower than the preset temperature of the second coil, the outdoor heat exchanger will quickly begin to frost due to the fact that the actual temperature of the coil is too low, and therefore the working efficiency of the heat exchanger is affected.
With reference to fig. 6, another method for controlling a multi-split air conditioning system according to an embodiment of the present disclosure includes:
s601, the processor acquires the running state of each indoor unit.
The operation state includes heating operation, cooling operation or non-operation.
And S602, under the condition that the heating operation indoor unit and the non-operation indoor unit exist at the same time, the processor acquires the room environment information of the non-operation indoor unit.
And S603, under the condition that the indoor environment temperature is higher than the indoor preset temperature, the processor controls the indoor unit which is not operated to adjust the operation state to the refrigeration operation.
S604, the processor obtains the outdoor environment temperature.
And S605, adjusting the rotating speed of the inner fan and/or the opening of the electronic expansion valve of the indoor unit which is not operated by the processor according to the outdoor environment temperature.
And S606, the processor corrects the rotating speed of the inner fan and/or the opening of the electronic expansion valve of the indoor unit which is not operated according to the indoor environment temperature and the outdoor environment temperature.
By adopting the method for controlling the multi-split air-conditioning system provided by the embodiment of the disclosure, the working or idle conditions of the indoor units in different rooms can be better judged by monitoring the running state of each indoor unit. By monitoring the ambient temperature in the room where the idle indoor unit is located, the indoor unit meeting the waste heat recovery condition can be screened out, and the indoor unit is controlled to execute the refrigeration operation, so that the heat in the room can be recycled. Meanwhile, the phenomenon that the indoor unit frosts an internal heat exchanger due to refrigeration operation is avoided under the condition that the room is at an uncomfortable temperature. Through with waste heat recovery, this disclosed embodiment can promote the heating efficiency to can shorten the programming rate in user's place room, be favorable to improving user's actual experience. Meanwhile, the idle indoor units are added in the multi-split air conditioning system to perform refrigeration operation, so that the refrigeration capacity of the outdoor units can be effectively shared, and the heat absorbed by the outdoor units from the outside can be reduced. By combining with monitoring of working environments of indoor and outdoor units, the embodiment of the disclosure can more accurately adjust the operation parameters of the indoor unit, so as to realize reasonable distribution of the refrigerating capacities of the indoor and outdoor units. Therefore, the frosting speed of the heat exchanger of the outdoor unit can be further reduced, and the arrival of the defrosting stage can be delayed.
Alternatively, the method for controlling the multi-split air conditioning system may be performed in the multi-split air conditioning system, or may be performed in a server communicating with the multi-split air conditioning system. In the embodiments of the present disclosure, a description is made of a scheme in which a processor in a multi-split air conditioning system is used as an execution subject.
Optionally, the processor corrects the rotation speed of the internal fan and/or the opening of the electronic expansion valve of the indoor unit not in operation according to the indoor ambient temperature and the outdoor ambient temperature, and includes: under the condition that the indoor environment temperature is higher than the outdoor environment temperature, the processor increases the rotating speed of an inner fan of the indoor unit which is not operated, and/or the processor increases the opening of an electronic expansion valve of the indoor unit which is not operated; and under the condition that the indoor environment temperature is less than or equal to the outdoor environment temperature, the processor reduces the rotating speed of the inner fan of the indoor unit which is not operated, and/or reduces the opening degree of the electronic expansion valve of the indoor unit which is not operated. Therefore, by monitoring the working environments of the indoor unit and the outdoor unit, the embodiment of the disclosure can compare the waste heat conditions of different environments, and reasonably adjust the operation parameters of the indoor unit based on the comparison result, so as to realize reasonable distribution of the refrigerating capacity of the indoor unit and the outdoor unit. Specifically, in the case that the indoor ambient temperature is high and more available heat exists indoors, the working parameters of the indoor unit can be increased to further share the cooling capacity of the outdoor unit. Therefore, the frosting speed of the heat exchanger of the outdoor unit can be reduced, and the delay of the defrosting stage is facilitated. And under the conditions that the outdoor environment temperature is higher and more available heat exists outdoors, the working parameters of the indoor unit can be reduced to reduce the refrigerating capacity born by the indoor unit. Thereby being beneficial to reducing the possibility of frosting of the heat exchanger of the indoor unit.
As shown in fig. 7, an embodiment of the present disclosure provides an apparatus for controlling a multi-split air conditioning system, including a processor (processor)701 and a memory (memory) 702. Optionally, the apparatus may also include a Communication Interface 703 and a bus 704. The processor 701, the communication interface 703 and the memory 702 may communicate with each other through a bus 704. Communication interface 703 may be used for the transfer of information. The processor 701 may call the logic instructions in the memory 702 to perform the method for controlling the multi-split air conditioning system of the above-described embodiment.
Furthermore, the logic instructions in the memory 702 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product.
The memory 702 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 701 executes functional applications and data processing, i.e., implements the method for controlling the multi-split air conditioning system in the above-described embodiment, by executing program instructions/modules stored in the memory 702.
The memory 702 may 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; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 702 may include high speed random access memory, and may also include non-volatile memory.
The embodiment of the disclosure provides a multi-split air conditioning system, which comprises an outdoor unit, a plurality of indoor units and the device for controlling the multi-split air conditioning system. The indoor units are arranged in the rooms in a one-to-one correspondence manner. The device for controlling the multi-split air conditioning system is electrically connected with the outdoor unit and the indoor units.
The disclosed embodiments provide a storage medium storing computer-executable instructions that, when executed, perform the above-described method for controlling a multi-split air conditioning system.
The storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (10)

1. A method for controlling a multi-split air conditioning system, the multi-split air conditioning system including an outdoor unit and a plurality of indoor units, the plurality of indoor units being disposed in a plurality of rooms in a one-to-one correspondence, the method comprising:
acquiring the running state of each indoor unit; the operation state comprises heating operation, cooling operation or non-operation;
under the condition that a heating operation indoor unit and a non-operation indoor unit exist at the same time, room environment information of the non-operation indoor unit is obtained;
and controlling the indoor unit which is not operated to adjust the operation state to be refrigeration operation according to the room environment information.
2. The method of claim 1, wherein the controlling the non-operating indoor unit to adjust the operation state to the cooling operation according to the room environment information comprises:
and under the condition that the indoor environment temperature is higher than the indoor preset temperature, controlling the indoor unit which does not operate to adjust the operation state to be refrigeration operation.
3. The method of claim 2, wherein before controlling the non-operating indoor unit to adjust the operation state to the cooling operation when the indoor ambient temperature is greater than the indoor preset temperature, the method further comprises:
determining the indoor personnel condition;
and under the condition that no person is in the room, obtaining the indoor environment temperature.
4. The method of claim 2, wherein after controlling the non-operating indoor unit to adjust the operation state to the cooling operation when the indoor ambient temperature is greater than the indoor preset temperature, the method further comprises:
acquiring the outdoor environment temperature;
and adjusting the rotating speed of an inner fan and/or the opening of the electronic expansion valve of the indoor unit which is not operated according to the outdoor environment temperature.
5. The method of claim 4, wherein the adjusting the internal fan speed and/or the electronic expansion valve opening of the non-operating indoor unit according to the outdoor ambient temperature comprises:
under the condition that the outdoor environment temperature is higher than a first outdoor preset temperature, adjusting the rotating speed of an inner fan of the indoor unit which is not operated to a first rotating speed, and/or adjusting the opening degree of an electronic expansion valve of the indoor unit which is not operated to a first opening degree;
under the condition that the outdoor environment temperature is less than or equal to a first outdoor preset temperature and greater than a second outdoor preset temperature, adjusting the rotating speed of an inner fan of the indoor unit which is not operated to be a second rotating speed, and/or adjusting the opening of an electronic expansion valve of the indoor unit which is not operated to be a second opening;
under the condition that the outdoor environment temperature is less than or equal to a second outdoor preset temperature, adjusting the rotating speed of an inner fan of the indoor unit which is not operated to be a third rotating speed, and/or adjusting the opening degree of an electronic expansion valve of the indoor unit which is not operated to be a third opening degree;
the first outdoor preset temperature is greater than the second outdoor preset temperature, the first rotating speed is less than the second rotating speed, the second rotating speed is less than the third rotating speed, the first opening degree is less than the second opening degree, and the second opening degree is less than the third opening degree.
6. The method of claim 4, wherein after adjusting the internal fan speed and/or the electronic expansion valve opening of the non-operating indoor unit according to the outdoor ambient temperature, the method further comprises:
acquiring the temperature of a coil pipe of a heat exchanger of an outdoor unit;
and correcting the rotating speed of an inner fan and/or the opening of the electronic expansion valve of the indoor unit which is not operated according to the temperature of the coil pipe of the heat exchanger of the outdoor unit.
7. The method of claim 4, wherein after adjusting the internal fan speed and/or the electronic expansion valve opening of the non-operating indoor unit according to the outdoor ambient temperature, the method further comprises:
and correcting the rotating speed of the inner fan and/or the opening of the electronic expansion valve of the indoor unit which is not operated according to the indoor environment temperature and the outdoor environment temperature.
8. An apparatus for controlling a multi-split air conditioning system, comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for controlling a multi-split air conditioning system according to any one of claims 1 to 7 when executing the program instructions.
9. A multi-split air conditioning system, comprising:
an outdoor unit;
the indoor units are arranged in the rooms in a one-to-one correspondence manner;
the apparatus for controlling a multi-split air conditioning system as set forth in claim 8, electrically connected to the outdoor unit and the plurality of indoor units.
10. A storage medium storing program instructions, characterized in that, when executed, the program instructions perform the method for controlling a multi-split air conditioning system according to any one of claims 1 to 7.
CN202210417609.3A 2022-04-20 2022-04-20 Method, device and system for controlling multi-split air conditioning system and storage medium Active CN114811854B (en)

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