CN112710065B - Control method of multi-split air conditioner, multi-split air conditioner and storage medium - Google Patents
Control method of multi-split air conditioner, multi-split air conditioner and storage medium Download PDFInfo
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- CN112710065B CN112710065B CN201911027384.5A CN201911027384A CN112710065B CN 112710065 B CN112710065 B CN 112710065B CN 201911027384 A CN201911027384 A CN 201911027384A CN 112710065 B CN112710065 B CN 112710065B
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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
- F24F11/62—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
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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
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/70—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
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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
- F24F11/70—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
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- 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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Abstract
The invention discloses a control method of a multi-split air conditioner, which comprises the following steps: acquiring the indoor temperature in the action space of the currently operated indoor unit of the one-drive-multiple air conditioner; detecting that the indoor temperature of part of the indoor units meets a temperature reaching condition, and controlling the throttle devices of the indoor units with the indoor temperatures meeting the temperature reaching condition to be closed; and after controlling the throttling device to be closed for a first preset time, controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be opened for a preset opening degree. The invention also discloses a multi-split air conditioner and a computer readable storage medium. The invention solves the problem of avoiding the overhigh temperature in the action space of the indoor unit of the greenhouse under the condition of ensuring the stable operation of the multi-split air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of a multi-split air conditioner, the multi-split air conditioner and a computer readable storage medium.
Background
At present, one multi-split air conditioner only needs one outdoor unit, can be connected with a plurality of indoor units at the same time, saves the space of the outdoor unit, and meets the air conditioning requirements of a plurality of rooms at the same time.
When a multi-split air conditioner is operated, even if there are indoor units that have reached the temperature and there are indoor units that have not reached the temperature, the outdoor unit still needs to be operated. At this time, if the throttling device of the indoor greenhouse is directly closed, the refrigerant and the compressor oil are accumulated in the indoor greenhouse, so that the air conditioning system is unstable, and if the throttling device of the indoor greenhouse is kept opened, the indoor greenhouse generates heat radiation, so that the temperature in the acting space of the indoor greenhouse is too high.
The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.
Disclosure of Invention
The invention mainly aims to provide a control method of a multi-split air conditioner, the multi-split air conditioner and a computer readable storage medium, which solve the problem of avoiding the overhigh temperature in the action space of an indoor unit in a greenhouse under the condition of ensuring the stable operation of the multi-split air conditioner.
In order to achieve the above object, the present invention provides a method for controlling a multi-split air conditioner, the multi-split air conditioner including at least two indoor units, the method comprising the steps of:
acquiring the indoor temperature in the action space of the currently operated indoor unit of the one-drive-multiple air conditioner;
when detecting that the indoor temperatures of part of the indoor units meet the temperature reaching condition, controlling the throttle devices of the indoor units of which the indoor temperatures meet the temperature reaching condition to be closed;
and after controlling the throttling device to be closed for a first preset time, controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be opened for a preset opening degree.
Optionally, after the step of controlling the throttling device to close for the first preset time period, controlling the throttling device of the indoor unit, of which the indoor temperature meets the temperature reaching condition, to open for a preset opening degree, the method further includes:
and after controlling the throttling device to maintain the preset opening degree for a second preset time, returning to the step of controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be closed.
Optionally, the one-drive-multiple air conditioner operates in a heating mode, and the temperature reaching condition is any one of the following conditions:
the indoor temperature is greater than or equal to a set temperature;
and the difference value between the indoor temperature and the set temperature is greater than or equal to a preset value.
Optionally, after the step of obtaining the indoor temperature in the indoor unit operating space where the multi-split air conditioner is currently operating, the method further includes:
and when the indoor temperatures of all the indoor units are detected to meet the temperature reaching condition, controlling the throttling devices of the indoor units with the indoor temperatures meeting the temperature reaching condition to be opened to preset opening degrees.
Optionally, the control method of the multi-split air conditioner further includes:
and reducing the rotating speed of a fan of the indoor unit of which the indoor temperature meets the temperature reaching condition to a preset rotating speed.
Optionally, the fan of the indoor unit with the indoor temperature meeting the temperature reaching condition is turned off while the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition is controlled to be turned off; and controlling the fan of the indoor unit with the indoor temperature meeting the temperature reaching condition to operate according to the preset rotating speed while controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to open the preset opening.
Optionally, after the step of obtaining the indoor temperature in the indoor unit operating space where the multi-split air conditioner is currently operating, the method further includes:
controlling the fan of the indoor unit with the indoor temperature meeting the temperature reaching condition to be closed;
after the fan is controlled to be turned off for a third preset time, the fan is controlled to be turned on and operated;
and after the fan runs for a fourth preset time, returning to execute the step of acquiring the indoor temperature of the indoor unit currently running by the multi-split air conditioner.
Optionally, the control method of the multi-split air conditioner further includes:
and controlling the throttle device of the indoor unit which is not operated in the multi-split air conditioner to open a preset opening.
In order to achieve the above object, the present invention further provides a multi-split air conditioner, including at least two indoor units, the multi-split air conditioner including:
the multi-split air conditioner comprises a memory, a processor and a control program of the multi-split air conditioner, wherein the control program of the multi-split air conditioner is stored in the memory and can be operated on the processor, and the control program of the multi-split air conditioner realizes the steps of the control method of the multi-split air conditioner when being executed by the processor.
In order to achieve the above object, the present invention further provides a computer readable storage medium, on which a control program of a multi-split air conditioner is stored, wherein when the control program of the multi-split air conditioner is executed by a processor, the steps of the control method of the multi-split air conditioner are implemented.
The invention provides a control method of a multi-split air conditioner, the multi-split air conditioner and a computer readable storage medium, which are used for obtaining the indoor temperature in the action space of an indoor unit currently operated by the multi-split air conditioner; detecting that the indoor temperature of part of the indoor units meets a temperature reaching condition, and controlling the throttle devices of the indoor units with the indoor temperatures meeting the temperature reaching condition to be closed; and after controlling the throttling device to be closed for a first preset time, controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be opened for a preset opening degree. Therefore, the throttling device of the indoor unit of the greenhouse is closed within a period of time after the indoor unit reaches the temperature, and then the throttling device is opened again, so that the heating output of the indoor unit of the greenhouse to the action space is reduced, and the problem of overhigh temperature in the action space of the indoor unit of the greenhouse under the condition of ensuring the stable operation of the one-driving-multiple air conditioner is solved.
Drawings
Fig. 1 is a schematic diagram of a hardware operating environment of a terminal according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a control method of a multi-split air conditioner according to a first embodiment of the present invention;
FIG. 3 is a flow chart illustrating a control method of a multi-split air conditioner according to a second embodiment of the present invention;
FIG. 4 is a flow chart illustrating a control method of a multi-split air conditioner according to a third embodiment of the present invention;
FIG. 5 is a flow chart illustrating a fourth embodiment of a control method for a multi-split air conditioner according to the present invention;
fig. 6 is a schematic structural diagram of a multi-split air conditioner according to an embodiment of a method for controlling a multi-split air conditioner of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a control method of a multi-split air conditioner, which solves the problem of avoiding overhigh temperature in an action space of an indoor unit of a greenhouse under the condition of ensuring the stable operation of the multi-split air conditioner.
As shown in fig. 1, fig. 1 is a schematic diagram of a hardware operating environment of a terminal according to an embodiment of the present invention;
the terminal of the embodiment of the invention can be a multi-split air conditioner, and also can be a control terminal or a server for controlling the multi-split air conditioner.
As shown in fig. 1, the terminal may include: a processor 1001, such as a Central Processing Unit (CPU), a memory 1002, and a communication bus 1003. The communication bus 1003 is used for implementing connection communication between the components in the terminal. The memory 1002 may be a random-access memory (RAM) or a non-volatile memory (non-volatile memory), such as a disk memory. The memory 1002 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the terminal shown in fig. 1 is not intended to be limiting of the terminal of embodiments of the present invention and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a control program for a multi-split air conditioner may be included in the memory 1002 as a computer storage medium.
In the terminal shown in fig. 1, the processor 1001 may be configured to call a control program of the multi-split air conditioner stored in the memory 1002, and perform the following operations:
acquiring the indoor temperature in the action space of the currently operated indoor unit of the one-drive-multiple air conditioner;
when detecting that the indoor temperature of part of the indoor units meets the temperature reaching condition, controlling the throttle devices of the indoor units with the indoor temperatures meeting the temperature reaching condition to be closed;
and after controlling the throttling device to be closed for a first preset time, controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be opened for a preset opening degree.
Further, the processor 1001 may call the control program of the multi-split air conditioner stored in the memory 1002, and further perform the following operations:
and after controlling the throttling device to maintain the preset opening degree for a second preset time, returning to the step of controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be closed.
Further, the processor 1001 may call the control program of the multi-split air conditioner stored in the memory 1002, and further perform the following operations:
the indoor temperature is greater than or equal to a set temperature;
and the difference value between the indoor temperature and the set temperature is greater than or equal to a preset value.
Further, the processor 1001 may call the control program of the multi-split air conditioner stored in the memory 1002, and further perform the following operations:
and when the indoor temperatures of all the indoor units are detected to meet the temperature reaching condition, controlling the throttling devices of the indoor units with the indoor temperatures meeting the temperature reaching condition to be opened to preset opening degrees.
Further, the processor 1001 may call the control program of the multi-split air conditioner stored in the memory 1002, and further perform the following operations:
and reducing the rotating speed of a fan of the indoor unit of which the indoor temperature meets the temperature reaching condition to a preset rotating speed.
Further, the processor 1001 may call the control program of the multi-split air conditioner stored in the memory 1002, and further perform the following operations:
controlling a throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be closed, and simultaneously closing a fan of the indoor unit with the indoor temperature meeting the temperature reaching condition; and controlling the fan of the indoor unit with the indoor temperature meeting the temperature reaching condition to operate according to the preset rotating speed while controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to open the preset opening.
Further, the processor 1001 may call the control program of the multi-split air conditioner stored in the memory 1002, and further perform the following operations:
controlling the fan of the indoor unit with the indoor temperature meeting the temperature reaching condition to be closed;
after the fan is controlled to be closed for a third preset time, the fan is controlled to be started to operate;
and after the fan runs for a fourth preset time, returning to execute the step of acquiring the indoor temperature of the indoor unit currently running by the multi-split air conditioner.
Further, the processor 1001 may call a control program of the multi-split air conditioner stored in the memory 1002, and further perform the following operations:
and controlling the throttle device of the indoor unit which is not operated in the multi-split air conditioner to open a preset opening.
Referring to fig. 2, in an embodiment, a method for controlling a multi-split air conditioner includes:
and S10, acquiring the indoor temperature in the working space of the indoor unit currently operated by the multi-split air conditioner.
In this embodiment, the terminal in this embodiment may be a multi-split air conditioner, or may be a control terminal or a server for controlling the multi-split air conditioner. The following description will take the example of the embodiment terminal as a multi-split air conditioner.
Alternatively, each of the multi-split air conditioners includes at least two indoor units (indoor heat exchangers), that is, at least two indoor units are connected to an outdoor unit (outdoor heat exchanger) of the multi-split air conditioner. Wherein, each indoor set all has throttling arrangement corresponding with it to and each indoor set all has the indoor temperature sensor corresponding with it.
Optionally, the throttling device is an electronic expansion valve.
Alternatively, referring to fig. 6, the one-driving-multiple air conditioner includes a compressor 10, a compressor discharge port 11, a gas-liquid separator 12, a four-way valve 20, an outdoor unit 30, a throttling member assembly 40, a throttling device 41, an indoor unit group 50, and an indoor unit 51.
Optionally, when the indoor unit of the multi-split air conditioner operates, the indoor unit may detect the indoor temperature in the acting space of the indoor unit in real time or at regular time through the corresponding indoor temperature sensor.
And S20, detecting that the indoor temperatures of part of the indoor units meet the temperature reaching condition, and controlling the throttle devices of the indoor units of which the indoor temperatures meet the temperature reaching condition to be closed.
Optionally, when the multi-split air conditioner operates a plurality of indoor units simultaneously, the terminal may detect whether the indoor temperature of the currently operating indoor unit satisfies the temperature reaching condition. It should be noted that the temperature reaching condition may be characterized in that the temperature in the operating space of the indoor unit reaches a set temperature, and at this time, the indoor unit is controlled to maintain the current indoor temperature.
Optionally, the indoor unit operates in a heating mode, and the temperature reaching condition may be that the indoor temperature in the acting space of the indoor unit is greater than or equal to a set temperature; or, the temperature reaching condition may be that a difference value (obtained by subtracting the set temperature from the indoor temperature) between the indoor temperature in the acting space of the indoor unit and the set temperature is greater than or equal to a preset value, wherein the preset value belongs to a temperature compensation value, and is optionally 2 ℃; or, the temperature reaching condition may be that a difference between the indoor temperature in the action space of the indoor unit and the set temperature is within a preset difference range, wherein the preset difference range may be [ -1 ℃,1 ℃ ]. It should be understood that in the indoor unit operating in the cooling mode, the reaching condition may be that the indoor temperature in the active space of the indoor unit is less than or equal to the set temperature.
It should be noted that, when the indoor temperature of the indoor unit satisfies the temperature reaching condition, that is, the indoor unit satisfies the temperature reaching condition.
Optionally, when the terminal detects that some indoor units in the currently operating indoor units meet the temperature reaching condition and some indoor units do not meet the temperature reaching condition (that is, when at least one indoor unit in at least two currently operating indoor units meets the temperature reaching condition and at least one indoor unit does not meet the temperature reaching condition), the terminal controls a throttling device of the indoor unit meeting the temperature reaching condition in the currently operating indoor unit to be closed. And the rest throttling devices of the indoor units which do not meet the temperature reaching condition continuously maintain the opening degree for ensuring the normal operation of the indoor units.
Alternatively, the throttle may be controlled to be fully closed when the throttle is controlled to be closed. For example, when the maximum opening degree of the throttle device is 400P (steps), the throttle device is controlled to perform reverse operation 500P, and thus the throttle device can be completely closed.
Therefore, the problem that the temperature in the action space is too high due to the fact that the indoor unit meeting the temperature reaching condition continuously generates heat radiation can be avoided. Meanwhile, the problem that the detection distortion of the indoor temperature sensor is caused because the temperature of the shell of the indoor unit of the greenhouse rises suddenly and the detection temperature of the indoor temperature sensor is higher than the indoor actual temperature can be avoided.
And S30, after the throttling device is controlled to be closed for a first preset time, controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be opened for a preset opening degree.
Optionally, after the throttling device of the indoor unit meeting the temperature reaching condition is controlled to be closed for a first preset time period, the throttling device of the indoor unit meeting the temperature reaching condition may be controlled to be opened again by the preset opening degree.
It should be noted that the preset opening degree is characterized by a minimum opening degree that the throttling device needs to be opened on the premise of ensuring that the refrigerant and the compressor oil are not accumulated in the indoor unit meeting the temperature reaching condition. The preset opening degree may be selected to be 60P.
Optionally, the value range of the first preset duration may be 5min to 7min, and may be 6min.
Therefore, the throttling device of the indoor unit of the greenhouse is controlled to be closed for a period of time and then opened, so that the heat radiation of the indoor unit of the greenhouse can be reduced, and the situation that the refrigerant and the compressor oil are accumulated in the indoor unit meeting the temperature reaching condition can be avoided.
Optionally, when the terminal detects that all the indoor units in the currently operating plurality of indoor units meet the temperature reaching condition, the terminal may control the throttling devices of all the indoor units to be opened to a preset opening degree, and control the outdoor unit to stop operating.
Alternatively, if there is an indoor unit that is not in operation in addition to the currently operating indoor unit in the one-to-many air conditioner, the throttle device of the indoor unit that is not in operation may be controlled to be opened by a preset opening degree.
In one embodiment, the indoor temperature in the indoor unit action space of the currently operated one-drive-multiple air conditioner is obtained; detecting that the indoor temperature of part of the indoor units meets a temperature reaching condition, and controlling the throttle devices of the indoor units with the indoor temperatures meeting the temperature reaching condition to be closed; and after controlling the throttling device to be closed for a first preset time, controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be opened for a preset opening degree. Therefore, the throttling device of the indoor unit of the greenhouse is closed within a period of time after the indoor unit reaches the temperature, and then the throttling device is opened again, so that the heating output of the indoor unit of the greenhouse to the action space is reduced, and the problem of avoiding the overhigh temperature of the indoor unit of the greenhouse under the condition of ensuring the stable operation of the one-driving-more air conditioner is solved.
In a second embodiment, as shown in fig. 3, in addition to the embodiment shown in fig. 2, after the step of controlling the throttle device of the indoor unit, the indoor temperature of which satisfies the temperature reaching condition, to be opened by a preset opening degree after controlling the throttle device to be closed for a first preset time period, the method further includes:
and S40, after the throttling device is controlled to maintain the preset opening degree for a second preset time, returning to the step of controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be closed.
In this embodiment, after the throttling device of the indoor unit controlling the indoor temperature to satisfy the temperature reaching condition is closed for the first preset time period, the throttling device of the indoor unit controlling the indoor temperature to satisfy the temperature reaching condition may be controlled to be opened for the preset opening degree, and is maintained to be opened for the second preset time period.
Optionally, the second preset duration is less than the first preset duration. Optionally, the second preset time period may range from 30 seconds to 2 minutes, and may be optionally 1 minute.
Optionally, after controlling the throttling devices of the indoor units meeting the temperature reaching condition to be opened again for a preset opening degree and maintaining the preset opening degree for a second preset time, if the terminal continuously detects that part of the indoor units in the currently running indoor units meet the temperature reaching condition and part of the indoor units do not meet the temperature reaching condition, the terminal returns to the step of controlling the throttling devices of the indoor units meeting the temperature reaching condition to be closed. And repeating the steps in such a circulating way until all the running indoor units meet the temperature reaching condition (the outdoor units can stop running at the moment), or all the running indoor units do not meet the temperature reaching condition (the opening degree of the throttling devices of all the indoor units is correspondingly adjusted according to the system requirements at the moment so as to ensure the normal running of the indoor units).
For example, when the temperature reaching condition is met in the heating mode of the indoor unit, the throttling device of the indoor unit is controlled to be closed for 6min, then the throttling device is controlled to be opened to 60P for 1min, the throttling device is closed for 6min, the 60P is opened for 1min, the circulation operation is carried out until the indoor unit quits the temperature reaching condition, and after the indoor unit quits the temperature reaching condition, the opening degree of the throttling device is adjusted according to the normal throttling device control method.
In an embodiment, after controlling the throttling device to maintain the preset opening degree for a second preset time period, the step of controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be closed is returned to. Therefore, the problem of how to avoid the overhigh temperature in the acting space of the indoor unit of the greenhouse under the condition of ensuring the stable operation of the multi-split air conditioner is solved.
In a third embodiment, as shown in fig. 4, on the basis of the above embodiments of fig. 2 to 3, the method for controlling a multi-split air conditioner further includes:
and S50, reducing the rotating speed of a fan of the indoor unit of which the indoor temperature meets the temperature reaching condition to a preset rotating speed.
In this embodiment, an indoor temperature sensor of the indoor unit is provided in the casing.
Alternatively, when the throttling devices of the indoor units controlling the indoor temperature to meet the temperature reaching condition are repeatedly opened and closed, or when all the indoor units meet the temperature reaching condition and the throttling devices of all the indoor units are controlled to be opened at the preset opening degree, the generated heat radiation may cause detection distortion of the indoor temperature sensor (the temperature detected by the indoor temperature sensor is higher than the indoor actual temperature) in the process of opening the throttling devices of the indoor units meeting the temperature reaching condition, so that after the indoor units meet the temperature reaching condition, the fan of the indoor unit is not controlled to be directly closed, and the rotating speed of the fan is reduced to the preset rotating speed. It should be noted that the preset rotation speed is represented as the minimum rotation speed required by the fan to operate on the premise of avoiding detection distortion of the indoor temperature sensor, and the value range of the preset rotation speed may be 30 rpm to 60 rpm. Like this, reach the fan of greenhouse internal unit through control and move with predetermineeing the rotational speed, can avoid indoor temperature sensor to detect the distortion through the heat dissipation of blowing, can reduce the consumption of air conditioner again.
Alternatively, when the throttling device of the indoor unit that controls the indoor temperature to satisfy the temperature reaching condition is repeatedly opened and closed, the fan of the indoor unit may be controlled to be closed during the closing of the throttling device (that is, the fan of the indoor unit that satisfies the temperature reaching condition is closed while the throttling device of the indoor unit that satisfies the temperature reaching condition is closed), and the fan of the indoor unit may be controlled to operate according to a preset rotation speed during the opening of the throttling device at a preset opening degree (that is, the fan of the indoor unit that satisfies the temperature reaching condition is controlled to operate according to the preset rotation speed while the throttling device of the indoor unit that satisfies the temperature reaching condition is opened at the preset opening degree). Therefore, the detection distortion of the indoor temperature sensor is avoided, and the power consumption of the air conditioner can be further reduced.
Therefore, the fan reaching the indoor unit of the greenhouse is controlled to operate at a preset rotating speed, so that the detection distortion of the indoor temperature sensor can be avoided, and the power consumption of the air conditioner can be reduced.
In a fourth embodiment, as shown in fig. 5, based on the above-mentioned embodiments of fig. 2 to 4, after the step of obtaining the indoor temperature in the working space of the indoor unit in which the multi-split air conditioner is currently operating, the method further includes:
and S60, controlling the fan of the indoor unit with the indoor temperature meeting the temperature reaching condition to be closed.
And S61, controlling the fan to start and operate after controlling the fan to be closed for a third preset time.
And S62, after the fan runs for a fourth preset time, returning to execute the step of acquiring the indoor temperature of the indoor unit currently running by the multi-split air conditioner.
In this embodiment, the indoor temperature sensor of the indoor unit satisfying the temperature reaching condition is controlled to detect the indoor temperature at a fixed time.
Alternatively, when the throttling devices of the indoor units whose indoor temperatures meet the temperature reaching condition are repeatedly opened and closed, or when all the indoor units meet the temperature reaching condition and the throttling devices of all the indoor units are controlled to be opened at the preset opening degree, the fans of the indoor units meeting the temperature reaching condition can be controlled to be closed in order to reduce the power consumption of the air conditioner.
It should be noted that, when the indoor temperature sensor of the indoor unit satisfying the temperature reaching condition detects the indoor temperature regularly, the interval duration between the two indoor temperature detection time points before and after is equal to the sum of the third preset duration and the fourth preset duration.
Optionally, in order to avoid detection distortion of an indoor temperature sensor of the indoor unit of the greenhouse, the fan may be controlled to be turned off only within a third preset time period, and the fan may be controlled to be started and operated within a fourth preset time period, so as to reduce the temperature in the casing of the indoor unit by blowing and dissipating heat. After the indoor unit meeting the temperature reaching condition detects the indoor temperature, the fan of the indoor unit meeting the temperature reaching condition is controlled to be closed, the fan is controlled to be started to operate for a fourth preset time after the fan is closed for a third preset time, and then the indoor temperature in the action space of the indoor unit meeting the temperature reaching condition is detected again (the step of obtaining the indoor temperature of the indoor unit currently operating by the multi-split air conditioner is executed in a returning mode).
It should be noted that the fourth preset time period is characterized in that in the process of the fourth preset time period of the fan operation, the deviation between the temperature in the casing of the indoor unit and the indoor actual temperature can be within a reasonable deviation range through blowing heat dissipation; the fourth preset time period can be selected to be 1-5 minutes.
Optionally, when the terminal receives a start instruction of an indoor unit that is not in operation, the terminal may also control the indoor unit to which the start instruction is directed to operate for a fourth preset time in advance, and then control the indoor unit to operate normally according to the set parameters corresponding to the indoor unit.
Therefore, after the fan of the indoor unit meeting the temperature reaching condition is turned off, the fan is controlled to start running for blowing and radiating only in a period of time before the indoor unit needs to detect the indoor temperature, so that the detection distortion of the indoor temperature sensor can be avoided, and the power consumption of the air conditioner can be reduced.
In addition, the invention also provides a multi-split air conditioner, which comprises at least two indoor units, wherein the multi-split air conditioner comprises a memory, a processor and a control program of the multi-split air conditioner, the control program is stored in the memory and can be operated on the processor, and the steps of the control method of the multi-split air conditioner are realized when the processor executes the control program of the multi-split air conditioner.
Furthermore, the present invention also provides a computer-readable storage medium, which includes a control program of a multi-split air conditioner, and when the control program of the multi-split air conditioner is executed by a processor, the steps of the control method of the multi-split air conditioner as described in the above embodiments are implemented.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is an alternative embodiment. Based on such understanding, the technical solution of the present invention or the portions contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above and includes several instructions for enabling a terminal device (which may be a television, a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A control method for a multi-split air conditioner is characterized in that the multi-split air conditioner comprises at least two indoor units, and the control method for the multi-split air conditioner comprises the following steps:
acquiring the indoor temperature in the action space of the currently operated indoor unit of the one-drive-multiple air conditioner;
when detecting that the indoor temperature of part of the indoor units meets the temperature reaching condition, controlling the throttling device of the indoor unit of which the indoor temperature meets the temperature reaching condition to be completely closed, wherein the temperature reaching condition is that the temperature in the action space of the indoor unit reaches a set temperature;
after the throttling device is controlled to be completely closed for a first preset time, controlling the throttling device of the indoor unit of which the indoor temperature meets the temperature reaching condition to be opened for a preset opening degree, wherein the preset opening degree is the minimum opening degree required by the throttling device to be opened on the premise of ensuring that the refrigerant and the compressor oil cannot be accumulated in the indoor unit meeting the temperature reaching condition;
after controlling the throttling device to maintain a second preset duration at the preset opening degree, returning to the step of controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to be completely closed;
and when a starting instruction of the indoor unit which is not operated is received, controlling the indoor unit which is aimed at by the starting instruction to operate for a fourth preset time in advance, and then controlling the indoor unit to normally operate according to the set parameters corresponding to the indoor unit.
2. A control method of a multi-split air conditioner as set forth in claim 1, wherein the multi-split air conditioner is operated in a heating mode, and the temperature reaching condition is any one of:
the indoor temperature is greater than or equal to a set temperature;
and the difference value between the indoor temperature and the set temperature is greater than or equal to a preset value.
3. The method for controlling a multi-split air conditioner according to claim 1, wherein after the step of obtaining the indoor temperature in the active space of the indoor unit in which the multi-split air conditioner is currently operated, further comprising:
and when the indoor temperatures of all the indoor units are detected to meet the temperature reaching condition, controlling the throttling devices of the indoor units with the indoor temperatures meeting the temperature reaching condition to be opened to preset opening degrees.
4. A control method of a multi-split air conditioner as set forth in any one of claims 1-3, wherein the control method of the multi-split air conditioner further comprises:
and reducing the rotating speed of a fan of the indoor unit of which the indoor temperature meets the temperature reaching condition to a preset rotating speed.
5. The control method of a multi-split air conditioner according to claim 4, wherein the fan of the indoor unit having the indoor temperature satisfying the temperature attainment condition is turned off while the throttle device of the indoor unit having the indoor temperature satisfying the temperature attainment condition is controlled to be completely turned off; and controlling the fan of the indoor unit with the indoor temperature meeting the temperature reaching condition to operate according to the preset rotating speed while controlling the throttling device of the indoor unit with the indoor temperature meeting the temperature reaching condition to open the preset opening.
6. A control method of a multi-split air conditioner as set forth in any one of claims 1-3, wherein said step of obtaining the indoor temperature in the active space of the indoor unit in which the multi-split air conditioner is currently operated further comprises, after the step of obtaining the indoor temperature in the active space of the indoor unit, the steps of:
controlling the fan of the indoor unit with the indoor temperature meeting the temperature reaching condition to be closed;
after the fan is controlled to be turned off for a third preset time, the fan is controlled to be turned on and operated;
and after the fan runs for a fourth preset time, returning to execute the step of acquiring the indoor temperature of the indoor unit currently running by the multi-split air conditioner.
7. The control method of a multi-split air conditioner as set forth in claim 1, wherein the control method of a multi-split air conditioner further comprises:
and controlling the throttle device of the indoor unit which is not operated in the multi-split air conditioner to open a preset opening.
8. A multi-split air conditioner, characterized in that the multi-split air conditioner comprises at least two indoor units, the multi-split air conditioner comprises a memory, a processor and a control program of the multi-split air conditioner stored in the memory and operable on the processor, and the control program of the multi-split air conditioner realizes the steps of the control method of the multi-split air conditioner as claimed in any one of claims 1 to 7 when executed by the processor.
9. A computer-readable storage medium, wherein the computer-readable storage medium has stored thereon a control program for a multi-split air conditioner, which when executed by a processor, implements the steps of the method for controlling a multi-split air conditioner according to any one of claims 1 to 7.
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