CN110173807B - Control method and device of multi-split air conditioning system and multi-split air conditioning system - Google Patents
Control method and device of multi-split air conditioning system and multi-split air conditioning system Download PDFInfo
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- CN110173807B CN110173807B CN201910390930.5A CN201910390930A CN110173807B CN 110173807 B CN110173807 B CN 110173807B CN 201910390930 A CN201910390930 A CN 201910390930A CN 110173807 B CN110173807 B CN 110173807B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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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
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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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
- F24F11/70—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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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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 provides a control method and a control device of a multi-split air conditioning system and the multi-split air conditioning system, wherein the control method comprises the following steps: receiving a starting instruction or an initialization instruction; controlling communication modules of an indoor unit and an outdoor unit to start, and acquiring alternating current input voltage of the multi-split air conditioning system; and if the alternating-current input voltage is smaller than the preset low-voltage threshold value, controlling other loads of the multi-split air-conditioning system except for the communication modules of the indoor unit and the outdoor unit to be started in sequence. According to the control method and device of the multi-split air-conditioning system and the multi-split air-conditioning system, when the alternating current input voltage of the multi-split air-conditioning system is smaller than the preset low voltage threshold value, other loads except for the communication modules of the indoor unit and the outdoor unit of the multi-split air-conditioning system are controlled to be started in sequence, low-voltage resetting of a switching power supply caused by simultaneous starting of multiple loads is avoided, and normal starting of the multi-split air-conditioning system is guaranteed.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to a control method and device of a multi-split air conditioning system and the multi-split air conditioning system.
Background
When an indoor unit of a traditional multi-split air conditioning system is initialized and started, all loads including a wind guide structure, a fan, communication modules and control modules of the indoor unit and an outdoor unit are started at the same time, so that when the indoor unit is initialized or started under the condition of low alternating-current input voltage, a switching power supply is reset at low voltage due to overlarge load, and the multi-split air conditioning system is failed to start.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first object of the present invention is to provide a method for controlling a multi-split air conditioning system, which controls loads of the multi-split air conditioning system except communication modules of an indoor unit and an outdoor unit to be sequentially started when an ac input voltage of the multi-split air conditioning system is less than a preset low voltage threshold, so as to avoid low voltage reset of a switching power supply caused by simultaneous starting of multiple loads, and ensure normal starting of the multi-split air conditioning system.
A second object of the present invention is to provide a control apparatus for a multi-split air conditioning system.
A third object of the present invention is to provide a multi-split air conditioning system.
A fourth object of the invention is to propose an electronic device.
A fifth object of the present invention is to propose a computer-readable storage medium.
To achieve the above object, a first embodiment of the present invention provides a control method for a multi-split air conditioning system, including:
receiving a starting instruction or an initialization instruction;
controlling communication modules of an indoor unit and an outdoor unit to start, and acquiring alternating current input voltage of the multi-split air conditioning system;
and if the alternating current input voltage is smaller than a preset low voltage threshold value, controlling other loads of the multi-split air-conditioning system except for communication modules of the indoor unit and the outdoor unit to be started in sequence.
According to the control method of the multi-split air conditioning system, which is provided by the embodiment of the invention, a starting instruction or an initialization instruction is received; controlling communication modules of an indoor unit and an outdoor unit to start, and acquiring alternating current input voltage of the multi-split air conditioning system; and if the alternating-current input voltage is smaller than the preset low-voltage threshold value, controlling other loads of the multi-split air-conditioning system except for the communication modules of the indoor unit and the outdoor unit to be started in sequence. When the alternating-current input voltage of the multi-split air-conditioning system is smaller than a preset low-voltage threshold value, other loads of the multi-split air-conditioning system except communication modules of an indoor unit and an outdoor unit are controlled to be started in sequence, low-voltage resetting of a switching power supply caused by simultaneous starting of multiple loads is avoided, and normal starting of the multi-split air-conditioning system is guaranteed.
According to an embodiment of the present invention, the controlling the loads of the multi-split air conditioning system other than the communication modules of the indoor unit and the outdoor unit to be sequentially started includes: and controlling the other load interval set time except the communication modules of the indoor unit and the outdoor unit to be started in sequence.
According to an embodiment of the present invention, the control method further includes: and if the alternating current input voltage is equal to or greater than the low voltage threshold value, controlling the loads except the communication modules of the indoor unit and the outdoor unit to be started simultaneously.
According to an embodiment of the present invention, the controlling the loads of the multi-split air conditioning system other than the communication modules of the indoor unit and the outdoor unit to be sequentially started includes: and the electronic expansion valve, the air guide structure motor and the fan are sequentially controlled to start.
According to an embodiment of the present invention, the sequentially controlling the electronic expansion valve, the motor of the air guiding structure, and the fan to start includes: controlling the electronic expansion valve to be opened to an initial opening degree in a current mode; controlling the motor of the air guide structure to drive the air guide structure to swing to the maximum air outlet angle in the current mode; and controlling the fan to start, and limiting the maximum rotating speed of the fan.
According to an embodiment of the present invention, the limiting the maximum rotation speed of the fan includes: determining a voltage range interval corresponding to the alternating current input voltage; and setting the maximum rotating speed of the fan according to the voltage range interval, wherein the alternating current input voltage and the maximum rotating speed of the fan are in positive correlation.
To achieve the above object, a second embodiment of the present invention provides a control device for a multi-split air conditioning system, including:
the receiving module is used for receiving a starting instruction or an initialization instruction;
the first control module is used for controlling the starting of the communication modules of the indoor unit and the outdoor unit and acquiring the alternating current input voltage of the multi-split air conditioning system;
and the second control module is used for controlling other loads of the multi-split air conditioning system except the communication modules of the indoor unit and the outdoor unit to be sequentially started if the alternating-current input voltage is smaller than a preset low-voltage threshold value.
According to the control device of the multi-split air conditioning system, which is provided by the embodiment of the invention, a starting instruction or an initialization instruction is received; controlling communication modules of an indoor unit and an outdoor unit to start, and acquiring alternating current input voltage of the multi-split air conditioning system; and if the alternating-current input voltage is smaller than the preset low-voltage threshold value, controlling other loads of the multi-split air-conditioning system except for the communication modules of the indoor unit and the outdoor unit to be started in sequence. When the alternating-current input voltage of the multi-split air-conditioning system is smaller than a preset low-voltage threshold value, other loads of the multi-split air-conditioning system except communication modules of an indoor unit and an outdoor unit are controlled to be started in sequence, low-voltage resetting of a switching power supply caused by simultaneous starting of multiple loads is avoided, and normal starting of the multi-split air-conditioning system is guaranteed.
According to an embodiment of the present invention, the second control module is specifically configured to: and controlling the other load interval set time except the communication modules of the indoor unit and the outdoor unit to be started in sequence.
According to an embodiment of the invention, the second control module is further configured to: and if the alternating current input voltage is equal to or greater than the low voltage threshold value, controlling the loads except the communication modules of the indoor unit and the outdoor unit to be started simultaneously.
According to an embodiment of the present invention, the second control module is specifically configured to: and the electronic expansion valve, the air guide structure motor and the fan are sequentially controlled to start.
According to an embodiment of the present invention, the second control module is specifically configured to: controlling the electronic expansion valve to be opened to an initial opening degree in a current mode; controlling the motor of the air guide structure to drive the air guide structure to swing to the maximum air outlet angle in the current mode; and controlling the fan to start, and limiting the maximum rotating speed of the fan.
According to an embodiment of the present invention, the second control module is specifically configured to: determining a voltage range interval corresponding to the alternating current input voltage; and setting the maximum rotating speed of the fan according to the voltage range interval, wherein the alternating current input voltage and the maximum rotating speed of the fan are in positive correlation.
To achieve the above object, a third embodiment of the present invention provides a multi-split air conditioning system, including: the control device of the multi-split air conditioning system according to the embodiment of the second aspect of the present invention.
To achieve the above object, a fourth aspect of the present invention provides an electronic device, including: the control method of the multi-split air conditioning system comprises the steps of storing a program, a processor and a computer program which is stored in the memory and can run on the processor, wherein when the processor executes the program, the control method of the multi-split air conditioning system is realized.
To achieve the above object, a fifth embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, where the computer program, when executed by a processor, implements a control method of a multi-split air conditioning system according to the first embodiment of the present invention.
Drawings
Fig. 1 is a flowchart of a control method of a multi-split air conditioning system according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of a multi-split air conditioning system according to another embodiment of the present invention;
fig. 3 is a flowchart of a control method of a multi-split air conditioning system according to another embodiment of the present invention;
fig. 4 is a structural diagram of a control apparatus of a multi-split air conditioning system according to an embodiment of the present invention;
fig. 5 is a structural diagram of a multi-split air conditioning system according to an embodiment of the present invention;
FIG. 6 is a block diagram of an electronic device in accordance with one embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The method and the device for controlling a multi-split air conditioning system and the multi-split air conditioning system according to the embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a control method of a multi-split air conditioning system according to an embodiment of the present invention, as shown in fig. 1, the control method including:
s101, receiving a starting instruction or an initialization instruction.
In the embodiment of the invention, a starting instruction or an initialization instruction sent by a user is received. For example, a power-on instruction or an initialization instruction sent by a user through a remote controller is received through the infrared receiving device, or the power-on instruction or the initialization instruction input by the user is received through the control panel.
And S102, controlling the communication modules of the indoor unit and the outdoor unit to be started, and acquiring the alternating current input voltage of the multi-split air conditioning system.
In the embodiment of the invention, after a starting-up instruction or an initialization instruction is received, the indoor and outdoor main relays are controlled to be closed, so that the communication modules of the indoor unit and the outdoor unit are started, the indoor unit sends an alternating current input voltage query command, and the outdoor voltage detection module detects the alternating current input voltage of the multi-split air-conditioning system and replies the current alternating current input voltage of the multi-split air-conditioning system.
And S103, if the alternating current input voltage is smaller than a preset low voltage threshold value, controlling other loads of the multi-split air conditioning system except for communication modules of the indoor unit and the outdoor unit to be started in sequence.
In the embodiment of the invention, a low voltage threshold value, namely a voltage critical value of the multi-split air conditioning system working under the low alternating current input voltage state, can be preset. After the voltage of the multi-split air-conditioning system is obtained, the voltage is compared with a low voltage threshold value, if the voltage of the multi-split air-conditioning system is smaller than a preset low voltage threshold value, other loads of the multi-split air-conditioning system except communication modules of an indoor unit and an outdoor unit are controlled to be started in sequence, namely after the start of one load is finished, the other load starts again, specifically, other loads of the multi-split air-conditioning system except the communication modules of the indoor unit and the outdoor unit can be controlled to be started in sequence at intervals, the reset time of different loads is different, the interval set time corresponding to different loads is different, the range of the set time T can be 1 millisecond < T < 20 minutes, the low-voltage reset of a power switch caused by the simultaneous start of multiple loads is avoided, and the normal start of the multi-split air-conditioning system.
Further, the method may further include:
and if the alternating current input voltage is equal to or greater than the low voltage threshold value, controlling other loads except the communication modules of the indoor unit and the outdoor unit to be started simultaneously.
In the embodiment of the invention, if the alternating current input voltage of the multi-split air-conditioning system is equal to or greater than the low voltage threshold, the fact that the multi-split air-conditioning system works under the normal alternating current input voltage at the moment and the switching power supply has no low-voltage reset risk is shown, and other loads except the communication modules of the indoor unit and the outdoor unit are controlled to be started simultaneously.
According to the control method of the multi-split air conditioning system, which is provided by the embodiment of the invention, a starting instruction or an initialization instruction is received; controlling communication modules of an indoor unit and an outdoor unit to start, and acquiring alternating current input voltage of the multi-split air conditioning system; and if the alternating-current input voltage is smaller than the preset low-voltage threshold value, controlling other loads of the multi-split air-conditioning system except for the communication modules of the indoor unit and the outdoor unit to be started in sequence. When the alternating-current input voltage of the multi-split air-conditioning system is smaller than a preset low-voltage threshold value, other loads of the multi-split air-conditioning system except communication modules of an indoor unit and an outdoor unit are controlled to be started in sequence, low-voltage resetting of a switching power supply caused by simultaneous starting of multiple loads is avoided, and normal starting of the multi-split air-conditioning system is guaranteed.
Further, the step S103 in the embodiment shown in fig. 1 may specifically include:
and the electronic expansion valve, the air guide structure motor and the fan are sequentially controlled to start.
In the embodiment of the present invention, the motor of the wind guiding structure is a motor for driving the wind guiding structure, and the wind guiding structure includes, but is not limited to, wind guiding structures, louvers, wind deflectors, and other structures for guiding wind.
Specifically, as shown in fig. 2, "sequentially controlling the electronic expansion valve, the air guide structure motor, and the fan start" includes:
and S201, controlling the electronic expansion valve to be opened to the initial opening degree in the current mode.
In the embodiment of the invention, the current mode of the multi-split air conditioning system is obtained, and the electronic expansion valve is controlled to be opened to the initial opening degree in the current mode. The current mode can be a cooling mode, a heating mode and the like, and the initial opening degree of the electronic expansion valve in different modes can be different.
And S202, controlling a motor of the air guide structure to drive the air guide structure to swing to the maximum air outlet angle in the current mode.
In the embodiment of the invention, the current mode of the multi-split air conditioning system is obtained, and the motor of the air guide structure is controlled to drive the air guide structure to swing to the maximum air outlet angle in the current mode. The current mode can be a refrigeration mode, a heating mode and other modes, and the maximum air outlet angles in different modes can be different.
And S203, controlling the fan to start, and limiting the maximum rotating speed of the fan.
In the embodiment of the invention, the fan is controlled to start, and the maximum rotating speed of the fan is limited.
Specifically, a voltage range interval corresponding to the alternating current input voltage can be determined, and the maximum rotating speed of the fan can be set according to the voltage range interval, wherein the alternating current input voltage and the maximum rotating speed of the fan are in a positive correlation relationship, that is, the larger the alternating current input voltage is, the larger the maximum rotating speed of the fan is, the smaller the alternating current input voltage is, and the smaller the maximum rotating speed of the fan is.
As a possible embodiment, the positive correlation may be a linear relationship, and the maximum rotation speed of the fan varies linearly with the variation of the ac input voltage, that is, the higher the ac input voltage is, the higher the maximum rotation speed of the fan is, and the lower the ac input voltage is, the smaller the maximum rotation speed of the fan is, for example, X ═ M × V + Y, where X is the maximum rotation speed of the fan, V is the ac input voltage of the multi-split air conditioning system, Y is a rotation speed constant, M is a voltage coefficient, and when V is smaller than the low voltage threshold, M > 0.
As another possible implementation, the positive correlation may be that the maximum rotation speed of the fan varies in a stepwise manner with the variation of the ac input voltage, and as shown in fig. 3, "determining the corresponding maximum rotation speed of the fan according to the ac input voltage" includes:
s301, determining a voltage range interval corresponding to the alternating current input voltage.
In the embodiment of the present invention, the ac input voltage may be divided into a plurality of voltage range sections in advance, and a corresponding relationship between the voltage range sections and the maximum rotational speed of the fan is established, for example, the low voltage threshold is 220V, the ac input voltage lower than 220V is divided into four sections [0, 60V), [60V, 120V), [120V, 180V), [180, 220V), and the maximum rotational speeds of the fans corresponding to the four sections are X1, X2, X3, and X4, where X1 < X2 < X3 < X4. After the ac input voltage of the multi-split air conditioning system is acquired, the ac input voltage is compared with the pre-divided voltage range sections, and the voltage range section in which the voltage of the multi-split air conditioning system falls is the voltage range section corresponding to the voltage range section, for example, if the ac input voltage of the multi-split air conditioning system is 70V, the voltage range section corresponding to the ac input voltage is [60V, 120V ].
And S302, determining the maximum rotating speed of the fan corresponding to the voltage range interval as the maximum rotating speed of the fan corresponding to the alternating-current input voltage.
In the embodiment of the invention, after the voltage range interval corresponding to the alternating current input voltage is obtained, the maximum rotating speed of the fan corresponding to the voltage range interval can be obtained by inquiring the corresponding relation between the voltage range interval and the maximum rotating speed of the fan, and the maximum rotating speed of the fan corresponding to the alternating current input voltage of the multi-split air conditioning system is determined. For example, the voltage range interval corresponding to the multi-split air conditioning system is [60V, 120V), the maximum rotation speed X2 of the fan corresponding to [60V, 120V) is determined as the maximum rotation speed of the fan corresponding to the ac input voltage of the multi-split air conditioning system.
According to the control method of the multi-split air-conditioning system provided by the embodiment of the invention, when the alternating-current input voltage of the multi-split air-conditioning system is smaller than the preset low-voltage threshold value, the electronic expansion valve, the air guide structure motor and the fan are sequentially controlled to be started, so that the low-voltage load of the power supply voltage caused by the simultaneous starting of multiple loads can be avoided, and the normal starting of the multi-split air-conditioning system is ensured.
Fig. 4 is a structural diagram of a control apparatus of a multi-split air conditioning system according to an embodiment of the present invention, as shown in fig. 4, the control apparatus including:
a receiving module 21, configured to receive a power-on instruction or an initialization instruction;
the first control module 22 is used for controlling the starting of the communication modules of the indoor unit and the outdoor unit and acquiring the alternating-current input voltage of the multi-split air conditioning system;
and the second control module 23 is configured to control other loads of the multi-split air conditioning system except for the communication modules of the indoor unit and the outdoor unit to be sequentially started if the ac input voltage is less than the preset low voltage threshold.
It should be noted that the foregoing explanation of the embodiment of the control method for a multi-split air conditioning system is also applicable to the control device for a multi-split air conditioning system of the embodiment, and is not repeated herein.
According to the control device of the multi-split air conditioning system, which is provided by the embodiment of the invention, a starting instruction or an initialization instruction is received; controlling communication modules of an indoor unit and an outdoor unit to start, and acquiring alternating current input voltage of the multi-split air conditioning system; and if the alternating-current input voltage is smaller than the preset low-voltage threshold value, controlling other loads of the multi-split air-conditioning system except for the communication modules of the indoor unit and the outdoor unit to be started in sequence. When the alternating-current input voltage of the multi-split air-conditioning system is smaller than a preset low-voltage threshold value, other loads of the multi-split air-conditioning system except communication modules of an indoor unit and an outdoor unit are controlled to be started in sequence, low-voltage resetting of a switching power supply caused by simultaneous starting of multiple loads is avoided, and normal starting of the multi-split air-conditioning system is guaranteed.
Further, in a possible implementation manner of the embodiment of the present invention, the second control module 23 is specifically configured to: and controlling other load interval set time except the communication modules of the indoor unit and the outdoor unit to be started in sequence.
Further, in a possible implementation manner of the embodiment of the present invention, the second control module 23 is further configured to: and if the alternating current input voltage is equal to or greater than the low voltage threshold value, controlling other loads except the communication modules of the indoor unit and the outdoor unit to be started simultaneously.
Further, in a possible implementation manner of the embodiment of the present invention, the second control module 23 is specifically configured to: and the electronic expansion valve, the air guide structure motor and the fan are sequentially controlled to start.
Further, in a possible implementation manner of the embodiment of the present invention, the second control module 23 is specifically configured to: controlling the electronic expansion valve to be opened to the initial opening degree in the current mode; controlling a motor of the air guide structure to drive the air guide structure to swing to the maximum air outlet angle in the current mode; and controlling the fan to start, and limiting the maximum rotating speed of the fan.
Further, in a possible implementation manner of the embodiment of the present invention, the second control module 23 is specifically configured to: determining a voltage range interval corresponding to the alternating current input voltage; and setting the maximum rotating speed of the fan according to the voltage range interval, wherein the alternating current input voltage and the maximum rotating speed of the fan are in positive correlation.
It should be noted that the foregoing explanation of the embodiment of the control method for a multi-split air conditioning system is also applicable to the control device for a multi-split air conditioning system of the embodiment, and is not repeated herein.
According to the control device of the multi-split air conditioning system, which is provided by the embodiment of the invention, a starting instruction or an initialization instruction is received; controlling the starting of communication modules of the indoor unit and the outdoor unit, and acquiring the voltage of the multi-split air conditioning system; and if the voltage is less than the preset low voltage threshold value, controlling other loads of the multi-split air-conditioning system except for the communication modules of the indoor unit and the outdoor unit to be started in sequence. When the voltage of the multi-split air-conditioning system is smaller than a preset low-voltage threshold value, other loads of the multi-split air-conditioning system except communication modules of the indoor unit and the outdoor unit are controlled to be started in sequence, low-voltage resetting of a switching power supply caused by simultaneous starting of multiple loads is avoided, and normal starting of the multi-split air-conditioning system is guaranteed.
In order to implement the above embodiment, an embodiment of the present invention further provides a multi-split air conditioning system 30, as shown in fig. 5, including a control device 31 of the multi-split air conditioning system as shown in the above embodiment.
In order to implement the foregoing embodiment, the embodiment of the present invention further provides an electronic device 40, as shown in fig. 6, which includes a memory 41 and a processor 42. The memory 41 stores thereon a computer program operable on the processor 42, and the processor 42 executes the program to implement the control method of the multi-split air conditioning system as shown in the above-described embodiments.
In order to implement the above-described embodiments, an embodiment of the present invention also proposes a computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements a control method of a multi-split air conditioning system as shown in the above-described embodiments.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (13)
1. A control method of a multi-split air conditioning system is characterized by comprising the following steps:
receiving a starting instruction or an initialization instruction;
controlling communication modules of an indoor unit and an outdoor unit to start, and acquiring alternating current input voltage of the multi-split air conditioning system;
if the alternating-current input voltage is smaller than a preset low-voltage threshold value, controlling other loads of the multi-split air-conditioning system except for communication modules of the indoor unit and the outdoor unit to be started in sequence;
the controlling of the other loads of the multi-split air conditioning system except the communication modules of the indoor unit and the outdoor unit to be sequentially started comprises the following steps: control electronic expansion valve, wind-guiding structure motor and fan in proper order and start, wherein, when control electronic expansion valve starts: controlling the electronic expansion valve to be opened to an initial opening degree in a current mode; when controlling the starting of the motor of the air guide structure: and controlling the motor of the air guide structure to drive the air guide structure to swing to the maximum air outlet angle in the current mode.
2. The control method of claim 1, wherein the controlling of the loads of the multi-split air conditioning system other than the communication modules of the indoor unit and the outdoor unit to be sequentially started comprises:
and controlling the other load interval set time except the communication modules of the indoor unit and the outdoor unit to be started in sequence.
3. The control method according to claim 1, characterized by further comprising:
and if the alternating current input voltage is equal to or greater than the low voltage threshold value, controlling the loads except the communication modules of the indoor unit and the outdoor unit to be started simultaneously.
4. The control method according to claim 1, wherein, when controlling the fan to start: and controlling the fan to start, and limiting the maximum rotating speed of the fan.
5. The control method of claim 4, wherein said limiting the maximum rotational speed of the fan comprises:
determining a voltage range interval corresponding to the alternating current input voltage;
and setting the maximum rotating speed of the fan according to the voltage range interval, wherein the alternating current input voltage and the maximum rotating speed of the fan are in positive correlation.
6. A control device of a multi-split air conditioning system, comprising:
the receiving module is used for receiving a starting instruction or an initialization instruction;
the first control module is used for controlling the starting of the communication modules of the indoor unit and the outdoor unit and acquiring the alternating current input voltage of the multi-split air conditioning system;
the second control module is used for controlling other loads of the multi-split air conditioning system except the communication modules of the indoor unit and the outdoor unit to be started in sequence if the alternating-current input voltage is smaller than a preset low-voltage threshold;
the second control module is specifically configured to: control electronic expansion valve, wind-guiding structure motor and fan in proper order and start wherein, when control electronic expansion valve starts: controlling the electronic expansion valve to be opened to an initial opening degree in a current mode; when controlling the starting of the motor of the air guide structure: and controlling the motor of the air guide structure to drive the air guide structure to swing to the maximum air outlet angle in the current mode.
7. The control device of claim 6, wherein the second control module is specifically configured to:
and controlling the other load interval set time except the communication modules of the indoor unit and the outdoor unit to be started in sequence.
8. The control device of claim 6, wherein the second control module is further configured to:
and if the alternating current input voltage is equal to or greater than the low voltage threshold value, controlling the loads except the communication modules of the indoor unit and the outdoor unit to be started simultaneously.
9. The control device of claim 6, wherein the second control module, when controlling the fan to start: and controlling the fan to start, and limiting the maximum rotating speed of the fan.
10. The control device of claim 9, wherein the second control module is specifically configured to:
determining a voltage range interval corresponding to the alternating current input voltage;
and setting the maximum rotating speed of the fan according to the voltage range interval, wherein the alternating current input voltage and the maximum rotating speed of the fan are in positive correlation.
11. A multi-split air conditioning system, comprising: the control device of a multi-split air conditioning system as set forth in any one of claims 6 to 10.
12. An electronic device, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the control method of the multi-split air conditioning system as set forth in any one of claims 1 to 5 when executing the program.
13. A computer-readable storage medium on which a computer program is stored, wherein the program, when executed by a processor, implements a control method of a multi-split air conditioning system as set forth in any one of claims 1 to 5.
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| CN111256332A (en) * | 2020-01-19 | 2020-06-09 | 广东美的制冷设备有限公司 | Air conditioner and low voltage detection control method and device thereof |
| CN112432324A (en) * | 2020-11-16 | 2021-03-02 | 海信（广东）空调有限公司 | Load control method and device and air conditioner |
| CN113551386A (en) * | 2021-08-31 | 2021-10-26 | 合肥美的暖通设备有限公司 | Control method and control circuit of air conditioning system and air conditioning system |
| CN114940045A (en) * | 2022-03-24 | 2022-08-26 | 青岛海尔空调器有限总公司 | Fan starting control method and device of parking air conditioner, medium and parking air conditioner |
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