CN111365827A - Air conditioner, control method of air conditioner, and computer-readable storage medium - Google Patents

Air conditioner, control method of air conditioner, and computer-readable storage medium Download PDF

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Publication number
CN111365827A
CN111365827A CN202010216517.XA CN202010216517A CN111365827A CN 111365827 A CN111365827 A CN 111365827A CN 202010216517 A CN202010216517 A CN 202010216517A CN 111365827 A CN111365827 A CN 111365827A
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China
Prior art keywords
indoor unit
heat exchanger
temperature
indoor
communication line
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CN202010216517.XA
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Chinese (zh)
Inventor
刘凯
洪伟鸿
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Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
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Priority to CN202010216517.XA priority Critical patent/CN111365827A/en
Publication of CN111365827A publication Critical patent/CN111365827A/en
Pending legal-status Critical Current

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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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • 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
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices

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

Abstract

The present invention provides an air conditioner, a control method of the air conditioner, and a computer-readable storage medium, the air conditioner including: a restrictor; the indoor units are provided with indoor heat exchangers, and each indoor unit is correspondingly provided with a first communication circuit and a first refrigerant pipeline; the first ends of the first communication circuit and the first refrigerant pipeline are connected with the throttler, the second end of the first communication circuit is connected to the corresponding indoor unit, the second end of the first refrigerant pipeline is connected to the indoor heat exchanger of the corresponding indoor unit, and the throttler is configured to regulate the temperature of the heat exchanger of the corresponding indoor heat exchanger; a memory configured to store a computer program; a processor configured to execute a computer program to implement: controlling the throttler and one or more indoor units to operate in a target working mode, and acquiring the temperature of a heat exchanger corresponding to any indoor unit; and determining the matching result of the first communication line and the first refrigerant pipeline corresponding to any indoor unit according to the temperature of the heat exchanger.

Description

Air conditioner, control method of air conditioner, and computer-readable storage medium
Technical Field
The present invention relates to the field of air conditioning equipment, and in particular, to an air conditioning equipment, a control method of the air conditioning equipment, and a computer-readable storage medium.
Background
In the related art, a Variable Refrigerant Flow (VRF) system of a central air conditioner can simultaneously operate a plurality of indoor units in a cooling mode and a heating mode, and is mainly based on a Refrigerant Flow dividing function of a replacement device (hereinafter, referred to as MS) of a restrictor. And a plurality of groups of indoor units may be connected under the MS, which results in complex pipelines and wiring, and if the communication lines of the indoor units are not matched with the refrigerant pipelines, abnormal system operation may result.
Therefore, a technical solution capable of verifying whether a communication line of an indoor unit of an air conditioning device is matched with a refrigerant pipeline is needed.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the invention proposes an air conditioning system.
A second aspect of the invention proposes a control method of an air conditioning apparatus.
A third aspect of the invention proposes a computer-readable storage medium.
In view of this, a first aspect of the present invention provides an air conditioning apparatus including: a restrictor; the indoor units are provided with indoor heat exchangers, and each indoor unit is correspondingly provided with a first communication circuit and a first refrigerant pipeline; the first ends of the first communication circuit and the first refrigerant pipeline are connected with the throttler, the second end of the first communication circuit is connected to the corresponding indoor unit, the second end of the first refrigerant pipeline is connected to the indoor heat exchanger of the corresponding indoor unit, and the throttler is configured to regulate the temperature of the heat exchanger of the corresponding indoor heat exchanger; a memory configured to store a computer program; a processor configured to execute a computer program to implement: controlling the throttler and one or more indoor units to operate in a target working mode, and acquiring the temperature of a heat exchanger corresponding to any indoor unit; and determining the matching result of the first communication line and the first refrigerant pipeline corresponding to any indoor unit according to the temperature of the heat exchanger.
In the technical scheme, the air conditioning equipment comprises a plurality of indoor units, wherein the temperature of a refrigerant of each indoor unit is adjusted by the plurality of indoor units through throttlers (commonly called as a replacing device and an MS), so that the temperature of a heat exchanger of an indoor heat exchanger of each indoor unit is changed, and the plurality of indoor units can respectively operate in a refrigerating mode or a heating mode.
Specifically, each indoor unit of the indoor units is correspondingly provided with an independent first communication circuit and an independent first refrigerant pipeline, data interaction is carried out between the first communication circuit and a throttle and a control core of air conditioning equipment, and the refrigerant shunted by the throttle is obtained through the first refrigerant pipeline.
When detecting whether the first refrigerant pipeline corresponding to each indoor unit is matched with the first communication line or not, the throttler and the indoor units can be controlled to operate according to a target working mode, the switching operation of the working modes is executed, and the temperature of the heat exchanger of the corresponding indoor heat exchanger is obtained. When the working mode is changed, the temperature of the heat exchanger of the indoor unit changes along with the change of the working mode, and after the indoor unit obtains the corresponding temperature change, the temperature data needs to be sent to the control system through the first communication line.
Therefore, when the received heat exchanger temperature returned by the indoor unit is inconsistent with the change of the working mode of the indoor unit, at least three conditions exist, wherein in one condition, the first communication line is in wrong connection, so that the control system receives the actual heat exchanger temperature of other indoor units; the other is that the first refrigerant pipeline is connected wrongly, so that the indoor heat exchanger of the indoor unit cannot obtain the refrigerant with the correct temperature from the throttler; the third is that the first two cases occur simultaneously. The three situations can indicate that the current first communication line is not matched with the first refrigerant pipeline. Therefore, whether the first communication line of the indoor unit is matched with the first refrigerant pipeline or not can be accurately judged through the method, so that an installer can find and repair faults in time, the installation reliability of the air conditioning equipment is improved, and the use experience of a user is guaranteed.
In addition, the air conditioning equipment in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, the processor runs a computer program to control the restrictor and one or more indoor units to operate in a target operating mode, and obtains a temperature of a heat exchanger corresponding to any indoor unit, and specifically includes: controlling the indoor unit and the throttler to continuously run in a first working mode for a first preset time, and acquiring the temperature of a first heat exchanger corresponding to the indoor unit; and controlling the throttler to continuously operate for a second preset time in a second working mode, and acquiring the temperature of a second heat exchanger corresponding to the indoor unit.
In the technical scheme, the throttler and the indoor unit are controlled to work in a first working mode at first and continuously run for a first preset time, so that the running state of the air conditioning equipment is ensured to be stable at the moment, the temperature of the heat exchanger of the indoor unit is in a stable state, and the temperature of the first heat exchanger of the indoor heat exchanger is recorded at the moment. And then, controlling the throttler to switch the working mode, specifically controlling the throttler to operate in a second working mode and continuously operate for at least a second preset time. At this time, since the throttle switches the operating mode, the temperature of the refrigerant delivered to the indoor heat exchanger by the throttle does not match the operating mode of the indoor unit, i.e., the first operating mode, and at this time, the temperature of the indoor heat exchanger corresponding to the indoor unit changes. After the second time period, the temperature of the heat exchanger of the indoor unit is changed to the temperature of the second heat exchanger.
According to the acquired temperature of the first heat exchanger and the acquired temperature of the second heat exchanger, whether the refrigerant distributed to the indoor unit by the throttle changes according to mode switching or not and whether the temperature of the heat exchanger returned by the indoor unit can accurately reflect the change or not can be judged, and then whether the first communication line of the indoor unit is matched with the first refrigerant pipeline or not can be accurately deduced.
In any of the above technical solutions, the processor runs a computer program to determine a matching result between a first communication line and a first refrigerant pipeline corresponding to any indoor unit according to the temperature of the heat exchanger, and specifically includes: determining a difference between the first heat exchanger temperature and the second heat exchanger temperature; the absolute value of the difference is larger than or equal to the temperature difference threshold value, and a first communication line corresponding to the indoor unit is determined to be matched with a first refrigerant pipeline; and determining that the first communication line corresponding to the indoor unit is not matched with the first refrigerant pipeline when the absolute value of the difference value is smaller than the temperature threshold value.
In the technical scheme, after the throttler is switched to the second working mode and continuously operates for a second preset time, the temperature of the indoor heat exchanger of the corresponding indoor unit should change along with the throttle, and a relatively obvious temperature change should be formed between the temperature of the first heat exchanger and the temperature of the second heat exchanger. Therefore, when the difference value between the temperature of the first heat exchanger and the temperature of the second heat exchanger is greater than or equal to the temperature difference threshold value, it is indicated that the refrigerant distributed to the first refrigerant pipeline by the restrictor is correct, and the temperature value fed back by the corresponding indoor unit through the first communication line can reflect the temperature change of the refrigerant, and at this time, it can be determined that the first communication line is matched with the first refrigerant pipeline.
If the difference is smaller than the preset difference threshold, it is indicated that the change of the refrigerant temperature is not detected by the corresponding indoor unit, and at this time, it can be indicated that the first communication line is in a connection error, so that the control system receives the actual heat exchanger temperatures of other indoor units; or the first refrigerant pipeline is connected incorrectly, so that the indoor heat exchanger of the indoor unit cannot obtain the refrigerant with the correct temperature from the restrictor, and the first communication circuit can be determined to be not matched with the first refrigerant pipeline.
In any of the above technical solutions, it is determined that the first communication line corresponding to the indoor unit is not matched with the first refrigerant pipeline, and the processor executes the computer program to implement: determining an identification mark corresponding to the indoor unit, and generating fault information corresponding to the identification mark; and sending the fault information to corresponding display equipment or a terminal to display the fault information.
In the technical scheme, each indoor unit is distributed with a unique identification mark, when the fact that a first communication line and a first refrigerant pipeline corresponding to one indoor unit are not matched is determined, fault information corresponding to the identification marks is generated to mark the specific failed indoor unit and is sent to the corresponding display device or terminal, so that an installer is informed of connection errors of the refrigerant pipeline and/or the communication line of the indoor unit, the installer can maintain the indoor unit in time, and installation reliability of air conditioning equipment is guaranteed.
In any of the above technical solutions, the first operation mode is one of a cooling mode and a heating mode, and the second operation mode is the other of the cooling mode and the heating mode.
In the technical scheme, when the first working mode is a refrigerating mode, the second working mode is a heating mode, namely when the throttler and the indoor unit both operate in the refrigerating mode for a period of time, the throttler is controlled to be switched to the heating mode and operate for a period of time, and at the moment, if the first communication line is matched with the first refrigerant pipeline, the temperature of the heat exchanger corresponding to the indoor unit is required to obviously rise.
When the first working mode is a heating mode, the second working mode corresponds to a cooling mode. Namely, after the throttler and the indoor unit are both operated in the heating mode for a period of time, the throttling device is controlled to be switched to the cooling mode and operated for a period of time, and at the moment, if the first communication line is matched with the first refrigerant pipeline, the temperature of the heat exchanger corresponding to the indoor unit is obviously reduced.
In any one of the above technical solutions, the air conditioning apparatus further includes: the outdoor unit is provided with a memory, a processor and an outdoor heat exchanger; a second communication line and a second refrigerant pipeline; the first end of the second communication line is connected with the outdoor unit, the first end of the second refrigerant pipeline is connected with the outdoor heat exchanger, and the second ends of the second communication line and the second refrigerant pipeline are connected with the throttler.
In the technical scheme, the air conditioning equipment further comprises an outdoor unit, and the outdoor unit is connected with the throttler through a second communication line so as to realize data connection with the indoor unit. Meanwhile, the outdoor unit is provided with an outdoor heat exchanger, the outdoor heat exchanger conveys the refrigerant to the throttler through a second refrigerant pipeline, and the throttler further shunts the corresponding refrigerant to the corresponding indoor unit according to the working mode of the indoor unit so as to realize the adjustment of the indoor temperature.
In any one of the above technical solutions, the throttles are provided in plurality, and each throttler is correspondingly provided with a second communication line and a second refrigerant pipeline.
In this technical scheme, the throttler can set up to a plurality ofly, and every throttler all corresponds and is provided with corresponding second communication line and second refrigerant pipeline to be connected with the off-premises station through second communication line and second refrigerant pipeline. In some embodiments, each restriction is connected to a plurality of indoor units.
A second aspect of the present invention provides a control method for an air conditioner, for controlling the air conditioner provided in any one of the above technical solutions, the control method comprising: controlling a throttler of air conditioning equipment and one or more indoor units to operate in a target working mode, and acquiring the temperature of a heat exchanger corresponding to any indoor unit; and determining the matching result of the first communication line and the first refrigerant pipeline corresponding to any indoor unit according to the temperature of the heat exchanger.
In the technical scheme, the air conditioning equipment comprises a plurality of indoor units, wherein the temperature of each indoor unit refrigerant is adjusted by the plurality of indoor units through a restrictor (or called a replacing device or MS), so that the temperature of a heat exchanger of an indoor heat exchanger of each indoor unit is changed, and the plurality of indoor units can respectively operate in a refrigerating mode or a heating mode.
Specifically, each indoor unit of the indoor units is correspondingly provided with an independent first communication circuit and an independent first refrigerant pipeline, data interaction is carried out between the first communication circuit and a throttle and a control core of air conditioning equipment, and the refrigerant shunted by the throttle is obtained through the first refrigerant pipeline.
When detecting whether the first refrigerant pipeline corresponding to each indoor unit is matched with the first communication line or not, the throttler and the indoor units can be controlled to operate according to a target working mode, the switching operation of the working modes is executed, and the temperature of the heat exchanger of the corresponding indoor heat exchanger is obtained. When the working mode is changed, the temperature of the heat exchanger of the indoor unit changes along with the change of the working mode, and after the indoor unit obtains the corresponding temperature change, the temperature data needs to be sent to the control system through the first communication line.
Therefore, when the received heat exchanger temperature returned by the indoor unit is inconsistent with the change of the working mode of the indoor unit, at least three conditions exist, wherein in one condition, the first communication line is in wrong connection, so that the control system receives the actual heat exchanger temperature of other indoor units; the other is that the first refrigerant pipeline is connected wrongly, so that the indoor heat exchanger of the indoor unit cannot obtain the refrigerant with the correct temperature from the throttler; the third is that the first two cases occur simultaneously. The three situations can indicate that the current first communication line is not matched with the first refrigerant pipeline. Therefore, whether the first communication line of the indoor unit is matched with the first refrigerant pipeline or not can be accurately judged through the method, so that an installer can find and repair faults in time, the installation reliability of the air conditioning equipment is improved, and the use experience of a user is guaranteed.
In the above technical solution, the step of controlling a throttle of an air conditioning device and one or more indoor units to operate in a target operating mode and obtaining a temperature of a heat exchanger corresponding to any of the indoor units specifically includes: controlling the indoor unit and the throttler to continuously run in a first working mode for a first preset time, and acquiring the temperature of a first heat exchanger corresponding to the indoor unit; and controlling the throttler to continuously operate for a second preset time in a second working mode, and acquiring the temperature of a second heat exchanger corresponding to the indoor unit.
In the technical scheme, the throttler and the indoor unit are controlled to work in a first working mode at first and continuously run for a first preset time, so that the running state of the air conditioning equipment is ensured to be stable at the moment, the temperature of the heat exchanger of the indoor unit is in a stable state, and the temperature of the first heat exchanger of the indoor heat exchanger is recorded at the moment. And then, controlling the throttler to switch the working mode, specifically controlling the throttler to operate in a second working mode and continuously operate for at least a second preset time. At this time, since the throttle switches the operating mode, the temperature of the refrigerant delivered to the indoor heat exchanger by the throttle does not match the operating mode of the indoor unit, i.e., the first operating mode, and at this time, the temperature of the indoor heat exchanger corresponding to the indoor unit changes. After the second time period, the temperature of the heat exchanger of the indoor unit is changed to the temperature of the second heat exchanger.
According to the acquired temperature of the first heat exchanger and the acquired temperature of the second heat exchanger, whether the refrigerant distributed to the indoor unit by the throttle changes according to mode switching or not and whether the temperature of the heat exchanger returned by the indoor unit can accurately reflect the change or not can be judged, and then whether the first communication line of the indoor unit is matched with the first refrigerant pipeline or not can be accurately deduced.
In any of the above technical solutions, the step of determining the matching result between the first communication line and the first refrigerant pipeline corresponding to any indoor unit according to the temperature of the heat exchanger specifically includes: determining a difference between the first heat exchanger temperature and the second heat exchanger temperature; the absolute value of the difference is larger than or equal to the temperature difference threshold value, and a first communication line corresponding to the indoor unit is determined to be matched with a first refrigerant pipeline; and determining that the first communication line corresponding to the indoor unit is not matched with the first refrigerant pipeline when the absolute value of the difference value is smaller than the temperature threshold value.
In the technical scheme, after the throttler is switched to the second working mode and continuously operates for a second preset time, the temperature of the indoor heat exchanger of the corresponding indoor unit should change along with the throttle, and a relatively obvious temperature change should be formed between the temperature of the first heat exchanger and the temperature of the second heat exchanger. Therefore, when the difference value between the temperature of the first heat exchanger and the temperature of the second heat exchanger is greater than or equal to the temperature difference threshold value, it is indicated that the refrigerant distributed to the first refrigerant pipeline by the restrictor is correct, and the temperature value fed back by the corresponding indoor unit through the first communication line can reflect the temperature change of the refrigerant, and at this time, it can be determined that the first communication line is matched with the first refrigerant pipeline.
If the difference is smaller than the preset difference threshold, it is indicated that the change of the refrigerant temperature is not detected by the corresponding indoor unit, and at this time, it can be indicated that the first communication line is in a connection error, so that the control system receives the actual heat exchanger temperatures of other indoor units; or the first refrigerant pipeline is connected incorrectly, so that the indoor heat exchanger of the indoor unit cannot obtain the refrigerant with the correct temperature from the restrictor, and the first communication circuit can be determined to be not matched with the first refrigerant pipeline.
In any of the above technical solutions, it is determined that the first communication line corresponding to the indoor unit is not matched with the first refrigerant pipeline, and the control method further includes: determining an identification mark corresponding to the indoor unit, and generating fault information corresponding to the identification mark; and sending the fault information to corresponding display equipment or a terminal to display the fault information.
In the technical scheme, each indoor unit is distributed with a unique identification mark, when the fact that a first communication line and a first refrigerant pipeline corresponding to one indoor unit are not matched is determined, corresponding fault information is generated according to the identification mark and is sent to corresponding display equipment or terminals, so that an installer is informed of connection errors of the refrigerant pipeline and/or the communication line of the indoor unit, the installer can maintain the indoor unit in time, and installation reliability of air conditioning equipment is guaranteed.
In any of the above technical solutions, the first operation mode is one of a cooling mode and a heating mode, and the second operation mode is the other of the cooling mode and the heating mode.
In the technical scheme, when the first working mode is a refrigerating mode, the second working mode is a heating mode, namely when the throttler and the indoor unit both operate in the refrigerating mode for a period of time, the throttler is controlled to be switched to the heating mode and operate for a period of time, and at the moment, if the first communication line is matched with the first refrigerant pipeline, the temperature of the heat exchanger corresponding to the indoor unit is required to obviously rise.
When the first working mode is a heating mode, the second working mode corresponds to a cooling mode. Namely, after the throttler and the indoor unit are both operated in the heating mode for a period of time, the throttling device is controlled to be switched to the cooling mode and operated for a period of time, and at the moment, if the first communication line is matched with the first refrigerant pipeline, the temperature of the heat exchanger corresponding to the indoor unit is obviously reduced.
A third aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for checking pipeline allocation of a dispatching device according to any of the above technical solutions, and therefore the computer-readable storage medium includes all the beneficial effects of the method for checking pipeline allocation of a dispatching device according to any of the above technical solutions, which are not described herein again.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a block diagram illustrating a structure of an air conditioner according to an embodiment of the present invention;
fig. 2 shows a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 3 illustrates another flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 4 is still another flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
fig. 5 illustrates still another flowchart of a control method of an air conditioner according to an embodiment of the present invention;
FIG. 6 illustrates a schematic connection diagram of an air conditioning apparatus according to an embodiment of the present invention;
FIG. 7 illustrates another schematic connection diagram of an air conditioning apparatus according to an embodiment of the present invention;
fig. 8 is a flowchart illustrating a pilot operation of a control method of an air conditioning apparatus according to an embodiment of the present invention;
fig. 9 shows another flowchart of a pilot operation of the control method of the air conditioning apparatus according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The air conditioner, a control method of the air conditioner, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 9.
Example one
As shown in fig. 1, in one embodiment of the present invention, there is provided an air conditioning apparatus 100 including: a choke 102; the indoor units 104 are provided with indoor heat exchangers 1042, and each indoor unit 104 is correspondingly provided with a first communication line 106 and a first refrigerant pipeline 108;
the first ends of the first communication line 106 and the first refrigerant pipeline 108 are both connected with the throttler 102, the second end of the first communication line 106 is connected to the corresponding indoor unit 104, the second end of the first refrigerant pipeline 108 is connected to the indoor heat exchanger 1042 of the corresponding indoor unit 104, and the throttler 102 is configured to adjust the heat exchanger temperature of the corresponding indoor heat exchanger 1042; a memory configured to store a computer program; a processor configured to execute a computer program to implement: controlling the throttler 102 and one or more indoor units 104 to operate in a target working mode, and acquiring the temperature of a heat exchanger corresponding to any indoor unit 104; and determining the matching result of the first communication line 106 and the first refrigerant pipeline 108 corresponding to any indoor unit 104 according to the temperature of the heat exchanger.
The air conditioning apparatus 100 further includes: an outdoor unit 110 provided with a memory, a processor, and an outdoor heat exchanger 1102; a second communication line 112 and a second refrigerant line 114; a first end of the second communication line 112 is connected to the outdoor unit 110, a first end of the second refrigerant line 114 is connected to the outdoor heat exchanger 1102, and second ends of the second communication line 112 and the second refrigerant line 114 are both connected to the throttle 102.
The plurality of throttles 102 are provided, and each throttle 102 is correspondingly provided with a second communication line 112 and a second refrigerant pipeline 114.
In this embodiment, the air conditioning apparatus includes a plurality of indoor units, and the plurality of indoor units adjust the temperature of the refrigerant of each indoor unit through a restrictor (or called a replacement device, MS), so as to change the temperature of the heat exchanger of the indoor unit, thereby implementing that the plurality of indoor units operate in a cooling mode or a heating mode respectively.
Specifically, each indoor unit of the indoor units is correspondingly provided with an independent first communication circuit and an independent first refrigerant pipeline, data interaction is carried out between the first communication circuit and a throttle and a control core of air conditioning equipment, and the refrigerant shunted by the throttle is obtained through the first refrigerant pipeline.
The air conditioning equipment also comprises an outdoor unit, and the outdoor unit is connected with the throttler through a second communication line so as to realize data connection with the indoor unit. Meanwhile, the outdoor unit is provided with an outdoor heat exchanger, the outdoor heat exchanger conveys the refrigerant to the throttler through a second refrigerant pipeline, and the throttler further shunts the corresponding refrigerant to the corresponding indoor unit according to the working mode of the indoor unit so as to realize the adjustment of the indoor temperature.
The throttler can be set to a plurality of, and every throttler all corresponds and is provided with corresponding second communication line and second refrigerant pipeline to be connected with the off-premises station through second communication line and second refrigerant pipeline. In some embodiments, each restriction is connected to a plurality of indoor units.
When detecting whether a first refrigerant pipeline corresponding to each indoor unit is matched with a first communication line or not, the throttler and the indoor units can be controlled to operate according to a target working mode, the switching operation of the working modes is executed, and the temperature of the heat exchanger of the corresponding indoor heat exchanger is obtained. When the working mode is changed, the temperature of the heat exchanger of the indoor unit changes along with the change of the working mode, and after the indoor unit obtains the corresponding temperature change, the temperature data needs to be sent to the control system through the first communication line.
Therefore, when the received heat exchanger temperature returned by the indoor unit is inconsistent with the change of the working mode of the indoor unit, at least three conditions exist, wherein in one condition, the first communication line is in wrong connection, so that the control system receives the actual heat exchanger temperature of other indoor units; the other is that the first refrigerant pipeline is connected wrongly, so that the indoor heat exchanger of the indoor unit cannot obtain the refrigerant with the correct temperature from the throttler; the third is that the first two cases occur simultaneously. The three situations can indicate that the current first communication line is not matched with the first refrigerant pipeline. Therefore, whether the first communication line of the indoor unit is matched with the first refrigerant pipeline or not can be accurately judged through the method, so that an installer can find and repair faults in time, the installation reliability of the air conditioning equipment is improved, and the use experience of a user is guaranteed.
Specifically, the processor runs a computer program to control the throttle and one or more indoor units to run in a target working mode, and obtains a heat exchanger temperature corresponding to any indoor unit, and specifically includes: controlling the indoor unit and the throttler to continuously run in a first working mode for a first preset time, and acquiring the temperature of a first heat exchanger corresponding to the indoor unit; and controlling the throttler to continuously operate for a second preset time in a second working mode, and acquiring the temperature of a second heat exchanger corresponding to the indoor unit.
The first preset time and the second preset time can be freely set according to the actual condition of the system, so that the system is close to a stable state after enough running time.
The processor runs a computer program to determine a matching result of a first communication line and a first refrigerant pipeline corresponding to any indoor unit according to the temperature of the heat exchanger, and the method specifically comprises the following steps: determining a difference between the first heat exchanger temperature and the second heat exchanger temperature; the absolute value of the difference is larger than or equal to the temperature difference threshold value, and a first communication line corresponding to the indoor unit is determined to be matched with a first refrigerant pipeline; and determining that the first communication line corresponding to the indoor unit is not matched with the first refrigerant pipeline when the absolute value of the difference value is smaller than the temperature threshold value.
Determining that a first communication line corresponding to the indoor unit is not matched with a first refrigerant pipeline, and executing a computer program by the processor to realize: determining an identification mark corresponding to the indoor unit, and generating fault information corresponding to the identification mark; and sending the fault information to corresponding display equipment or a terminal to display the fault information.
The first operation mode is one of a cooling mode and a heating mode, and the second operation mode is the other of the cooling mode and the heating mode.
In the embodiment, the throttler and the indoor unit are controlled to work in the first working mode, and the air conditioner is continuously operated for a first preset time to ensure that the running state of the air conditioner is stable at the moment, the temperature of the heat exchanger of the indoor unit is in a stable state, and the temperature of the first heat exchanger of the indoor heat exchanger is recorded at the moment. And then, controlling the throttler to switch the working mode, specifically controlling the throttler to operate in a second working mode and continuously operate for at least a second preset time. At this time, since the throttle switches the operating mode, the temperature of the refrigerant delivered to the indoor heat exchanger by the throttle does not match the operating mode of the indoor unit, i.e., the first operating mode, and at this time, the temperature of the indoor heat exchanger corresponding to the indoor unit changes. After the second time period, the temperature of the heat exchanger of the indoor unit is changed to the temperature of the second heat exchanger.
According to the acquired temperature of the first heat exchanger and the acquired temperature of the second heat exchanger, whether the refrigerant distributed to the indoor unit by the throttle changes according to mode switching or not and whether the temperature of the heat exchanger returned by the indoor unit can accurately reflect the change or not can be judged, and then whether the first communication line of the indoor unit is matched with the first refrigerant pipeline or not can be accurately deduced.
When the throttler is switched to the second working mode and continuously operates for a second preset time, the temperature of the indoor heat exchanger of the corresponding indoor unit should change along with the throttle, and a relatively obvious temperature change should exist between the temperature of the first heat exchanger and the temperature of the second heat exchanger. Therefore, when the difference value between the temperature of the first heat exchanger and the temperature of the second heat exchanger is greater than or equal to the temperature difference threshold value, it is indicated that the refrigerant distributed to the first refrigerant pipeline by the restrictor is correct, and the temperature value fed back by the corresponding indoor unit through the first communication line can reflect the temperature change of the refrigerant, and at this time, it can be determined that the first communication line is matched with the first refrigerant pipeline.
If the difference is smaller than the preset difference threshold, it is indicated that the change of the refrigerant temperature is not detected by the corresponding indoor unit, and at this time, it can be indicated that the first communication line is in a connection error, so that the control system receives the actual heat exchanger temperatures of other indoor units; or the first refrigerant pipeline is connected incorrectly, so that the indoor heat exchanger of the indoor unit cannot obtain the refrigerant with the correct temperature from the restrictor, and the first communication circuit can be determined to be not matched with the first refrigerant pipeline.
Each indoor unit is distributed with a unique identification mark, when the fact that a first communication line corresponding to one indoor unit is not matched with a first refrigerant pipeline is determined, corresponding fault information is generated according to the identification mark and is sent to corresponding display equipment or terminals, so that an installer is informed of connection errors of the refrigerant pipeline and/or the communication line of the indoor unit, the installer can maintain the indoor unit in time, and installation reliability of air conditioning equipment is guaranteed.
When the first working mode is a refrigerating mode, the second working mode is a heating mode, namely when the throttler and the indoor unit both operate in the refrigerating mode for a period of time, the throttler is controlled to be switched to the heating mode and operate for a period of time, and at the moment, if the first communication line is matched with the first refrigerant pipeline, the temperature of the heat exchanger corresponding to the indoor unit is required to obviously rise.
When the first working mode is a heating mode, the second working mode corresponds to a cooling mode. Namely, after the throttler and the indoor unit are both operated in the heating mode for a period of time, the throttling device is controlled to be switched to the cooling mode and operated for a period of time, and at the moment, if the first communication line is matched with the first refrigerant pipeline, the temperature of the heat exchanger corresponding to the indoor unit is obviously reduced.
Example two
As shown in fig. 2, in an embodiment of the present invention, there is provided a control method of an air conditioner for controlling the air conditioner provided in any one of the above embodiments, the control method including:
step S202, controlling a throttler of air conditioning equipment and one or more indoor units to operate in a target working mode, and acquiring the temperature of a heat exchanger corresponding to any indoor unit;
and S204, determining a matching result of a first communication line and a first refrigerant pipeline corresponding to any indoor unit according to the temperature of the heat exchanger.
In step S202, as shown in fig. 3, the step of controlling a throttle of an air conditioning device and one or more indoor units to operate in a target operating mode and acquiring a temperature of a heat exchanger corresponding to any indoor unit specifically includes:
step S302, controlling the indoor unit and the throttler to continuously run in a first working mode for a first preset time, and acquiring the temperature of a first heat exchanger corresponding to the indoor unit;
and step S304, controlling the throttler to continuously operate in a second working mode for a second preset time, and acquiring the temperature of a second heat exchanger corresponding to the indoor unit.
In step S204, as shown in fig. 4, the step of determining a matching result between a first communication line and a first refrigerant pipeline corresponding to any indoor unit according to the temperature of the heat exchanger specifically includes:
step S402, determining the difference value between the temperature of the first heat exchanger and the temperature of the second heat exchanger;
step S404, determining that a first communication line corresponding to the indoor unit is matched with a first refrigerant pipeline when the absolute value of the difference value is larger than or equal to the temperature difference threshold value;
step S406, determining that the first communication line corresponding to the indoor unit is not matched with the first refrigerant pipeline when the absolute value of the difference value is smaller than the temperature threshold value.
Determining that the first communication line corresponding to the indoor unit is not matched with the first refrigerant pipeline, as shown in fig. 5, the control method further includes:
step S502, determining an identification mark corresponding to the indoor unit, and generating fault information corresponding to the identification mark;
step S504, the fault information is sent to the corresponding display equipment or terminal to display the fault information.
The first working mode is one of a cooling mode and a heating mode, and the second working mode is the other of the cooling mode and the heating mode.
In this embodiment, the air conditioning apparatus includes a plurality of indoor units, and the plurality of indoor units adjust the temperature of the refrigerant of each indoor unit through a restrictor (or called a replacement device, MS), so as to change the temperature of the heat exchanger of the indoor unit, thereby implementing that the plurality of indoor units operate in a cooling mode or a heating mode respectively.
Specifically, each indoor unit of the indoor units is correspondingly provided with an independent first communication circuit and an independent first refrigerant pipeline, data interaction is carried out between the first communication circuit and a throttle and a control core of air conditioning equipment, and the refrigerant shunted by the throttle is obtained through the first refrigerant pipeline.
When detecting whether the first refrigerant pipeline corresponding to each indoor unit is matched with the first communication line or not, the throttler and the indoor units can be controlled to operate according to a target working mode, the switching operation of the working modes is executed, and the temperature of the heat exchanger of the corresponding indoor heat exchanger is obtained. When the working mode is changed, the temperature of the heat exchanger of the indoor unit changes along with the change of the working mode, and after the indoor unit obtains the corresponding temperature change, the temperature data needs to be sent to the control system through the first communication line.
Therefore, when the received heat exchanger temperature returned by the indoor unit is inconsistent with the change of the working mode of the indoor unit, at least three conditions exist, wherein in one condition, the first communication line is in wrong connection, so that the control system receives the actual heat exchanger temperature of other indoor units; the other is that the first refrigerant pipeline is connected wrongly, so that the indoor heat exchanger of the indoor unit cannot obtain the refrigerant with the correct temperature from the throttler; the third is that the first two cases occur simultaneously. The three situations can indicate that the current first communication line is not matched with the first refrigerant pipeline. Therefore, whether the first communication line of the indoor unit is matched with the first refrigerant pipeline or not can be accurately judged through the method, so that an installer can find and repair faults in time, the installation reliability of the air conditioning equipment is improved, and the use experience of a user is guaranteed.
Firstly, the throttler and the indoor unit are controlled to work in a first working mode and continuously run for a first preset time so as to ensure that the running state of the air conditioning equipment approaches to be stable at the moment, the temperature of a heat exchanger of the indoor unit is in a stable state, and the temperature of a first heat exchanger of the indoor heat exchanger is recorded at the moment. And then, controlling the throttler to switch the working mode, specifically controlling the throttler to operate in a second working mode and continuously operate for at least a second preset time. At this time, since the throttle switches the operating mode, the temperature of the refrigerant delivered to the indoor heat exchanger by the throttle does not match the operating mode of the indoor unit, i.e., the first operating mode, and at this time, the temperature of the indoor heat exchanger corresponding to the indoor unit changes. After the second time period, the temperature of the heat exchanger of the indoor unit is changed to the temperature of the second heat exchanger.
When the first working mode is a refrigerating mode, the second working mode is a heating mode, namely when the throttler and the indoor unit both operate in the refrigerating mode for a period of time, the throttler is controlled to be switched to the heating mode and operate for a period of time, and at the moment, if the first communication line is matched with the first refrigerant pipeline, the temperature of the heat exchanger corresponding to the indoor unit is required to obviously rise.
When the first working mode is a heating mode, the second working mode corresponds to a cooling mode. Namely, after the throttler and the indoor unit are both operated in the heating mode for a period of time, the throttling device is controlled to be switched to the cooling mode and operated for a period of time, and at the moment, if the first communication line is matched with the first refrigerant pipeline, the temperature of the heat exchanger corresponding to the indoor unit is obviously reduced.
According to the acquired temperature of the first heat exchanger and the acquired temperature of the second heat exchanger, whether the refrigerant distributed to the indoor unit by the throttle changes according to mode switching and whether the temperature of the heat exchanger returned by the indoor unit can accurately reflect the change can be judged, and whether the first communication line of the indoor unit is matched with the first refrigerant pipeline can be accurately deduced.
When the throttler is switched to the second working mode and continuously operates for a second preset time, the temperature of the indoor heat exchanger of the corresponding indoor unit should change along with the throttle, and a relatively obvious temperature change should exist between the temperature of the first heat exchanger and the temperature of the second heat exchanger. Therefore, when the difference value between the temperature of the first heat exchanger and the temperature of the second heat exchanger is greater than or equal to the temperature difference threshold value, it is indicated that the refrigerant distributed to the first refrigerant pipeline by the restrictor is correct, and the temperature value fed back by the corresponding indoor unit through the first communication line can reflect the temperature change of the refrigerant, and at this time, it can be determined that the first communication line is matched with the first refrigerant pipeline.
If the difference is smaller than the preset difference threshold, it is indicated that the change of the refrigerant temperature is not detected by the corresponding indoor unit, and at this time, it can be indicated that the first communication line is in a connection error, so that the control system receives the actual heat exchanger temperatures of other indoor units; or the first refrigerant pipeline is connected incorrectly, so that the indoor heat exchanger of the indoor unit cannot obtain the refrigerant with the correct temperature from the restrictor, and the first communication circuit can be determined to be not matched with the first refrigerant pipeline.
Each indoor unit is distributed with a unique identification mark, when the fact that a first communication line corresponding to one indoor unit is not matched with a first refrigerant pipeline is determined, corresponding fault information is generated according to the identification mark and is sent to corresponding display equipment or terminals, so that an installer is informed of connection errors of the refrigerant pipeline and/or the communication line of the indoor unit, the installer can maintain the indoor unit in time, and installation reliability of air conditioning equipment is guaranteed.
EXAMPLE III
In an embodiment of the present invention, a three-pipe multi-split air conditioning heat recovery system is taken as an example to describe a specific implementation of the present invention.
A three-pipe multi-split air conditioner heat recovery system comprises: outdoor units, throttlers (commonly known as switching devices or MSs, hereinafter collectively referred to as MSs), indoor units, and other network nodes.
Wherein, the outdoor unit has following characteristics:
1. the multi-connected outdoor unit is located on the outdoor side, information interaction is achieved through the communication bus with the indoor unit, heat exchange is achieved through the refrigerant system pipeline, and finally a refrigerating/heating/mixing mode is achieved.
2. The plurality of outdoor units can be connected in parallel, but the number of the outdoor units connected in parallel in one refrigerant system is not particularly large, and is generally several. The outdoor unit with number 0# is used as the host machine and is connected with the MS through a bus.
3. The outdoor unit mixed mode is a specific operation mode of the heat recovery multi-split system, is divided into main refrigeration or main heating, and can realize the simultaneous occurrence of refrigeration and heating of a plurality of indoor units of the same system. Otherwise, if the indoor unit is not a heat recovery system, the indoor unit can only cool or heat at the same time, and when the mode set by the indoor unit is different from the running mode of the outdoor unit, the indoor unit can generate mode conflict warning information.
4. The outdoor unit is the main machine of the system and can receive the states of all the indoor units and the MS. After the external machine collects all the states of the system, various controls of the heat recovery system are realized.
MS has the following characteristics:
1. the MS is connected between the outdoor unit and the indoor unit and is a main functional module for realizing the heat recovery system. The indoor unit is connected between the pipelines below the MS, and the MS controls the refrigeration or heating among the pipelines through the valve body.
2. For the outdoor unit, the MS is used as a slave unit, the outdoor unit inquires the state of the indoor unit, and the MS transmits the state of the indoor unit upwards. For the indoor unit, the MS is used as a host and is responsible for collecting the state of the indoor unit.
3. The outdoor unit numbered 0# and the MS are directly connected, and a plurality of MSs can exist on the same communication bus at the same time. Other network nodes may be connected to the bus, and will not be discussed in detail herein.
4. The MS can divide the indoor unit connected with the MS into a plurality of pipelines, and each pipeline physically realizes the distribution control of the refrigerant. The indoor units of each pipeline are provided with independent communication buses, each communication bus can be used for hanging a plurality of indoor units, and all the indoor units can share the same communication bus.
5. If MS is arranged, the system is a heat recovery system; if the MS is not arranged, the heat pump system is adopted. The present embodiment only discusses the case where the MS is provided.
The indoor unit has the following characteristics:
1. the indoor unit is only used as a slave unit, and modes such as refrigeration, heating, dehumidification, air supply and the like are realized. Dehumidification is also a cooling requirement for the outdoor unit. The indoor unit is connected below the MS, uploads the refrigerating/heating requirements, and judges the final operation mode according to the operation state of the outdoor unit.
2. Each indoor unit has a unique address in the system, so that after the pipeline detection fails, the specific indoor unit can be directly positioned to have a wiring error.
3. The indoor unit is provided with an evaporator, when a refrigerant pipe corresponding to the indoor unit is refrigerating, the temperature of the evaporator is reduced, and the indoor temperature is reduced after heat exchange with indoor air is carried out; when the refrigerant pipe corresponding to the indoor unit is heating, the temperature of the evaporator rises, and the indoor temperature rises after heat exchange with indoor air is achieved.
The connection mode of the indoor unit and the MS is generally divided into two modes, the indoor unit of each pipeline is provided with an independent communication bus, each communication bus can be used for hanging a plurality of indoor units, and all the indoor units can share the same communication bus.
For the case that the indoor units share the communication bus, as shown in fig. 6, the MS needs to be divided into a plurality of pipes to physically realize the refrigerant distribution of the indoor units, and finally realize the simultaneous cooling and heating control of the indoor units. It is necessary for the MS to know that the actual connected pipe matches the pipe unit ID on the MS communication.
Specifically, all the indoor units under the MS are on the same bus, and the data of all the indoor units run on the bus, it is necessary to set which ID indoor unit is on which pipe on the centralized controller.
This solution has the advantages of a single bus and simple wiring, but has two disadvantages, one of which is that the indoor unit on the pipeline must be configured correctly; the other is that the data of all indoor units are on one bus, which causes the problems of bus congestion and slow data refreshing of the indoor units.
At present, addresses of indoor units are generally allocated through automatic addressing, so that the addresses of the allocated indoor units are discontinuous in two adjacent indoor units actually, and the addresses of the indoor units in the same pipeline are also discontinuous, so that errors are easy to occur when the mapping relation between the addresses of the indoor units and the pipes is manually set. If the setting is wrong, the group of the arranged indoor units is different from the actual refrigerant distribution, the control of the indoor units is abnormal, the user turns on cooling, and the actual operation is heating.
In the case where each indoor unit is separately provided with a communication line, as shown in fig. 7, the indoor unit of each refrigerant pipe is assigned a separate communication bus. This arrangement has the following advantages:
(1) the online address of the indoor unit of each refrigerant pipe can be automatically searched and identified without manual configuration.
(2) Because the number of the indoor units distributed under each bus is greatly reduced, the data refreshing of the indoor units can be greatly improved, and the control optimization is facilitated.
Therefore, in the present embodiment, a situation that each indoor unit is separately provided with a communication line is selected, and a method for determining whether a refrigerant pipeline corresponding to the indoor unit is matched with the communication line is provided on the basis.
Specifically, the refrigeration test is taken as an example: after the refrigeration test is carried out, the outdoor unit runs pure refrigeration, the MS sends a refrigeration mode to all indoor units, the indoor units are fully opened to meet the maximum capacity requirement, the temperature of the evaporators of the indoor units for refrigeration should be kept at a low temperature under normal conditions, and if the direction of the MS refrigeration and heating electromagnetic valves (or electric ball valves) is switched at the moment, the temperature of the evaporators of the indoor units can be rapidly increased. And MS detects and obtains the evaporator temperature of the indoor unit through communication, if the evaporator temperature of the indoor unit rises and exceeds a threshold value T, the pipelines are judged to be matched, otherwise, the pipelines are judged to be not matched. The heating logic is the same, only the temperature changes are opposite, and if the temperature drop of the evaporator is detected to exceed the threshold T, the pipeline is judged to be matched.
Because the test operation is a pipeline detection, only the refrigeration and heating electromagnetic valves of the same pipeline are switched (opposite to normal control) at the same time, the temperature rise (mode refrigeration and pipeline heating) or the temperature drop (mode heating and pipeline refrigeration) can be detected only by pipeline matching under the normal condition, the predicted temperature difference is not reached in the predicted time, and the pipeline is not matched with the online indoor unit.
The flow of starting the test run in the cooling mode is shown in fig. 8:
step S802, starting a refrigeration test;
step S804, the refrigeration mode is operated;
step S806, after x seconds, the MS switches the working mode and records the temperature of the heat exchanger of the indoor unit;
step S808, recording the temperature of a new heat exchanger of the indoor unit after y seconds, and calculating delta T;
step S810, judging whether the delta T is larger than or equal to a threshold value A; if yes, go to step S812, otherwise go to step S814;
step S812, determining that the pipelines match;
step S814, determining that the pipelines are not matched;
step S816 detects the next refrigerant pipe.
The flow of starting the test run in the heating mode is shown in fig. 9:
step S902, starting a heating test;
step S904, the heating mode operation;
step S906, after x seconds, MS switches the working mode and records the temperature of the heat exchanger of the indoor unit;
step 908, recording the new temperature of the heat exchanger of the indoor unit after y seconds, and calculating delta T;
step S910, judging whether the delta T is larger than or equal to a threshold value A; if yes, go to step S912, otherwise go to step S914;
step S912, determining pipeline matching;
step S914, determine the pipeline is not matched;
in step S916, the next refrigerant pipe is detected.
The time duration of the system is determined according to the actual conditions of the system, wherein x seconds are first preset time duration, y seconds are second preset time duration, and x seconds and y seconds can be set according to the actual conditions of the system.
Example four
In an embodiment of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program, when executed by a processor, implements the pipeline allocation checking method of the dispatching device as provided in any of the above embodiments, so that the computer-readable storage medium includes all the beneficial effects of the pipeline allocation checking method of the dispatching device as provided in any of the above embodiments, and details are not described herein again.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. An air conditioning apparatus, characterized by comprising:
a restrictor;
the indoor units are provided with indoor heat exchangers, and each indoor unit is correspondingly provided with a first communication circuit and a first refrigerant pipeline;
the first ends of the first communication line and the first refrigerant pipeline are connected with the throttler, the second end of the first communication line is connected to the corresponding indoor unit, the second end of the first refrigerant pipeline is connected to the indoor heat exchanger of the corresponding indoor unit, and the throttler is configured to adjust the temperature of the heat exchanger of the corresponding indoor heat exchanger;
a memory configured to store a computer program;
a processor configured to execute the computer program to implement:
controlling the throttler and one or more indoor units to operate in a target working mode, and acquiring the temperature of the heat exchanger corresponding to any indoor unit;
and determining the matching result of the first communication line and the first refrigerant pipeline corresponding to any indoor unit according to the temperature of the heat exchanger.
2. The air conditioning apparatus according to claim 1, wherein the processor runs the computer program to control the throttle device and one or more indoor units to operate in a target operation mode, and obtains the heat exchanger temperature corresponding to any of the indoor units, and specifically includes:
controlling the indoor unit and the throttler to continuously run in a first working mode for a first preset time, and acquiring the temperature of a first heat exchanger corresponding to the indoor unit;
and controlling the throttler to continuously operate for a second preset time in a second working mode, and acquiring the temperature of a second heat exchanger corresponding to the indoor unit.
3. The air conditioning equipment according to claim 2, wherein the processor runs the computer program to determine a matching result between the first communication line and the first refrigerant pipeline corresponding to any one of the indoor units according to the temperature of the heat exchanger, and specifically includes:
determining a difference between the first heat exchanger temperature and the second heat exchanger temperature;
the absolute value of the difference is greater than or equal to a temperature difference threshold value, and the first communication line corresponding to the indoor unit is determined to be matched with the first refrigerant pipeline;
and determining that the first communication line corresponding to the indoor unit is not matched with the first refrigerant pipeline when the absolute value of the difference value is smaller than the temperature threshold value.
4. The air conditioning equipment as claimed in claim 3, wherein the processor executes the computer program to implement:
determining an identification mark corresponding to the indoor unit, and generating corresponding fault information according to the identification mark;
and sending the fault information to corresponding display equipment or a terminal to display the fault information.
5. The air conditioning apparatus as claimed in any one of claims 2 to 4, wherein the first operation mode is one of a cooling mode and a heating mode, and the second operation mode is the other of the cooling mode and the heating mode.
6. The air conditioning apparatus according to any one of claims 1 to 4, characterized by further comprising:
the outdoor unit is provided with the memory, the processor and an outdoor heat exchanger;
a second communication line and a second refrigerant pipeline;
the first end of the second communication line is connected with the outdoor unit, the first end of the second refrigerant pipeline is connected with the outdoor heat exchanger, and the second ends of the second communication line and the second refrigerant pipeline are both connected with the throttle.
7. The air conditioning apparatus as claimed in claim 6, wherein the plurality of throttles are provided, and each of the throttles is provided with the second communication line and the second refrigerant line.
8. A control method of an air conditioning apparatus for controlling the air conditioning apparatus according to any one of claims 1 to 7, characterized by comprising:
controlling a throttler of the air conditioning equipment and one or more indoor units to operate in a target working mode, and acquiring the temperature of the heat exchanger corresponding to any indoor unit;
and determining the matching result of the first communication line and the first refrigerant pipeline corresponding to any indoor unit according to the temperature of the heat exchanger.
9. The method according to claim 8, wherein the step of controlling the throttle of the air conditioning equipment and one or more indoor units to operate in the target operation mode and obtaining the temperature of the heat exchanger corresponding to any one of the indoor units specifically comprises:
controlling the indoor unit and the throttler to continuously run in a first working mode for a first preset time, and acquiring the temperature of a first heat exchanger corresponding to the indoor unit;
and controlling the throttler to continuously operate for a second preset time in a second working mode, and acquiring the temperature of a second heat exchanger corresponding to the indoor unit.
10. The method according to claim 9, wherein the step of determining the matching result between the first communication line and the first refrigerant line corresponding to any one of the indoor units according to the temperature of the heat exchanger specifically includes:
determining a difference between the first heat exchanger temperature and the second heat exchanger temperature;
the absolute value of the difference is greater than or equal to a temperature difference threshold value, and the first communication line corresponding to the indoor unit is determined to be matched with the first refrigerant pipeline;
and determining that the first communication line corresponding to the indoor unit is not matched with the first refrigerant pipeline when the absolute value of the difference value is smaller than the temperature threshold value.
11. The method of claim 10, wherein it is determined that the first communication line and the first refrigerant line corresponding to the indoor unit do not match, the method further comprising:
determining an identification mark corresponding to the indoor unit, and generating the identification mark to generate corresponding fault information;
and sending the fault information to corresponding display equipment or a terminal to display the fault information.
12. The control method of an air conditioning apparatus according to any one of claims 9 to 11, characterized in that the first operation mode is one of a cooling mode and a heating mode, and the second operation mode is the other of the cooling mode and the heating mode.
13. A computer-readable storage medium on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements a control method of an air conditioning apparatus according to any one of claims 8 to 12.
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