CN111486553A - Air conditioner control method and device, air conditioner and computer storage medium - Google Patents
Air conditioner control method and device, air conditioner and computer storage medium Download PDFInfo
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- CN111486553A CN111486553A CN202010215735.1A CN202010215735A CN111486553A CN 111486553 A CN111486553 A CN 111486553A CN 202010215735 A CN202010215735 A CN 202010215735A CN 111486553 A CN111486553 A CN 111486553A
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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
- F24F11/80—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
- 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
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F2140/20—Heat-exchange fluid temperature
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Abstract
The invention discloses an air conditioner control method, an air conditioner control device, an air conditioner and a computer storage medium, wherein the method comprises the following steps: detecting whether all indoor units connected with the air conditioner are in a refrigerating operation state or not, and if so, entering the next step; judging whether the target indoor unit in the refrigerating operation state meets the single-unit refrigerating quick action entering condition or not, and entering the next step if the target indoor unit in the refrigerating operation state meets the single-unit refrigerating quick action entering condition; and controlling the opening of the electronic expansion valve of the target indoor unit to increase or controlling the opening of the electronic expansion valve of the target indoor unit and the running frequency of the compressor to increase according to the size relation among the inlet pipe temperature of the target indoor unit, the preset first temperature threshold and the preset second temperature threshold, and entering normal automatic control of the system until the target indoor unit is judged to meet the single-machine refrigeration quick-action exit condition. The invention can accelerate the refrigerant circulation in the air conditioner and ensure the refrigerating capacity of the indoor unit which is independently started.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner control method and device, an air conditioner and a computer storage medium.
Background
At present, as the requirements of people on the attractiveness and comfort of living environments are continuously increased, the number of room air conditioners is increased day by day, and one-more air conditioners have the advantages of flexible installation and reliable use and are explosively increased in countries with higher installation requirements, such as European Union, North America and the like.
Because the indoor unit of the multi-split air conditioner is flexible to use, the possibility that a user singly opens one indoor unit to operate in the process of using the air conditioner is high, however, when the singly opened indoor unit is used for refrigerating, the problem that the refrigerating capacity of the singly opened indoor unit is weak due to weak refrigerant circulation easily occurs to the multi-split air conditioner, the refrigerating requirement of the user cannot be met, and the using comfort of the user is influenced. Therefore, the air conditioner is correspondingly controlled in the single-unit refrigeration process, so that the refrigeration capacity of the indoor unit which is independently started is ensured, and the air conditioner has great practical value for the majority of users.
Disclosure of Invention
The embodiment of the invention provides an air conditioner control method and device, an air conditioner and a computer storage medium, which can promote the accelerated circulation of a refrigerant, and further ensure the refrigerating capacity of an indoor unit which is independently started, so that the refrigerating requirement of a user is met, and the use comfort of the user is improved.
In order to achieve the above object, an embodiment of the present invention provides an air conditioner control method, including:
detecting whether all indoor units connected with the air conditioner are in a refrigerating operation state or not, and if so, entering the next step;
judging whether a target indoor unit in a refrigeration running state meets a preset single-machine refrigeration quick action entering condition or not, and entering the next step if the target indoor unit in the refrigeration running state meets the preset single-machine refrigeration quick action entering condition;
and controlling the opening of an electronic expansion valve of the target indoor unit to be increased or controlling the opening of the electronic expansion valve of the target indoor unit and the running frequency of a compressor to be increased according to the size relation among the inlet pipe temperature of the target indoor unit, a preset first temperature threshold and a preset second temperature threshold, and controlling the target indoor unit to run according to a system automatic control strategy of the air conditioner until the target indoor unit is judged to meet a preset single-unit refrigeration quick action exit condition.
As an improvement of the above scheme, the determining whether the target indoor unit in the cooling operation state meets a preset single-unit cooling quick-action entry condition specifically includes:
judging whether the temperature of an inlet pipe of a target indoor unit in a refrigerating operation state is continuously smaller than a preset third temperature threshold value within first preset time, and whether the temperature of a coil pipe is continuously larger than or equal to a difference value between the indoor environment temperature and a preset fourth temperature threshold value within second preset time, if so, judging that the preset target indoor unit meets the single-unit refrigerating quick-action entering condition, and if not, judging that the target indoor unit does not meet the single-unit refrigerating quick-action entering condition.
As an improvement of the above scheme, the controlling, according to a magnitude relationship between an inlet pipe temperature of the target indoor unit, a preset first temperature threshold value, and a preset second temperature threshold value, an opening of an electronic expansion valve of the target indoor unit to be increased or an opening of an electronic expansion valve of the target indoor unit to be increased and an operation frequency of a compressor to be increased until the target indoor unit is judged to meet a preset single-unit refrigeration quick-action exit condition, controlling the target indoor unit to operate according to a system automatic control strategy of the air conditioner, specifically includes:
s131, judging the size relation among the inlet pipe temperature of the target indoor unit, a preset first temperature threshold and a preset second temperature threshold, if the inlet pipe temperature of the target indoor unit is judged to be smaller than the first temperature threshold, jumping to S132, and if the inlet pipe temperature of the target indoor unit is judged to be larger than or equal to the first temperature threshold and smaller than or equal to the second temperature threshold, jumping to S133;
s132, controlling the opening of the electronic expansion valve of the target indoor unit and the increase of the running frequency of the compressor, and jumping to the step S134;
s133, controlling the opening of the electronic expansion valve of the target indoor unit to increase, and jumping to the step S134;
s134, judging whether the target indoor unit meets a preset single-unit refrigeration quick action exit condition or not, if so, skipping to the step S135, and if not, repeatedly executing the step;
and S135, controlling the target indoor unit to operate according to the system automatic control strategy of the air conditioner.
As an improvement of the above scheme, the controlling the opening of the electronic expansion valve of the target indoor unit and the increase of the operating frequency of the compressor specifically includes:
controlling the opening degree of an electronic expansion valve of the target indoor unit to increase to a preset valve step; and the number of the first and second groups,
and controlling the running frequency of the compressor of the target indoor unit to increase a preset running frequency threshold value on the current basis.
As an improvement of the above scheme, the controlling the opening degree of the electronic expansion valve of the target indoor unit to increase specifically includes:
and controlling the opening degree of the electronic expansion valve of the target indoor unit to increase to a preset valve step.
As an improvement of the above scheme, whether the target indoor unit meets a preset single-unit refrigeration quick-action exit condition is judged in the following manner:
and judging whether the temperature of an inlet pipe of the target indoor unit is continuously greater than a preset fifth temperature threshold value within a third preset time, and whether the temperature of the coil pipe is continuously less than the difference value between the indoor environment temperature and a preset sixth temperature threshold value within a fourth preset time, if so, judging that the target indoor unit meets a preset single-unit refrigeration quick action quit condition, and if not, judging that the target indoor unit does not meet the single-unit refrigeration quick action quit condition.
Another embodiment of the present invention provides an air conditioner control device, including:
the single-machine refrigeration running state judging module is used for detecting whether one or more indoor machines connected with the air conditioner are in a refrigeration running state;
the single-machine refrigeration quick action entering condition judging module is used for judging whether the target indoor machine in the refrigeration running state meets the preset single-machine refrigeration quick action entering condition or not;
and the single-machine refrigeration quick action control module is used for controlling the opening of an electronic expansion valve of the target indoor machine to be increased or controlling the opening of the electronic expansion valve of the target indoor machine and the running frequency of a compressor to be increased according to the size relation among the inlet pipe temperature of the target indoor machine, a preset first temperature threshold and a preset second temperature threshold, and controlling the target indoor machine to run according to a system automatic control strategy of the air conditioner until the target indoor machine is judged to meet a preset single-machine refrigeration quick action quit condition.
Another embodiment of the present invention provides an air conditioner, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the air conditioner control method as described in any one of the above items when executing the computer program.
Another embodiment of the present invention provides a computer-readable storage medium including a stored computer program, wherein when the computer program runs, the apparatus on which the computer-readable storage medium is located is controlled to execute the air conditioner control method according to any one of the above.
Compared with the prior art, the air conditioner control method, the device, the air conditioner and the computer storage medium provided by the embodiment of the invention judge whether the target indoor unit in the refrigeration operation state meets the preset single-machine refrigeration quick action entry condition or not when detecting that only one indoor unit in all indoor units connected with the air conditioner is in the refrigeration operation state, and control the opening of the electronic expansion valve of the target indoor unit to be increased or control the opening of the electronic expansion valve of the target indoor unit and the operation frequency of the compressor to be increased according to the size relation among the inlet pipe temperature of the target indoor unit, the preset first temperature threshold and the preset second temperature threshold until the target indoor unit is judged to meet the preset single-machine refrigeration quick action exit condition, and controlling the operation of the target indoor unit according to the system automatic control strategy of the air conditioner. According to the scheme, under the conditions of single-machine refrigeration and weak refrigerant circulation, the opening of the electronic expansion valve of the target indoor unit is controlled to be increased correspondingly or the opening of the electronic expansion valve of the target indoor unit which is independently started and the running frequency of the compressor are controlled to be increased simultaneously, so that the refrigerant circulation is accelerated, the refrigerating capacity of the target indoor unit which is independently started is ensured, the refrigerating requirement of a user is met, and the use comfort of the user is improved.
Drawings
Fig. 1 is a flowchart illustrating an air conditioner control method according to an embodiment of the present invention.
Fig. 2 is a schematic flowchart illustrating step S13 in the air conditioner control method according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an air conditioner control device according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a schematic flow chart of an air conditioner control method according to an embodiment of the present invention.
The embodiment of the invention provides an air conditioner control method, which is applied to a multi-split air conditioner and comprises the following steps S11 to S13:
s11, detecting whether or not one or only one indoor unit is in a cooling operation state in all indoor units connected with the air conditioner, if so, entering the step S12.
When it is detected that only one of all the indoor units connected to the multi-split air conditioner is turned on and performs cooling operation, it is determined that the indoor unit in the cooling operation state is in the single-unit operation state, and therefore, the indoor unit in the cooling operation state is taken as a target indoor unit, and the process proceeds to step S12.
And S12, judging whether the target indoor unit in the cooling operation state meets the preset single-unit cooling quick action entering condition, if so, entering the step S13.
The single-machine refrigeration quick action entering condition is used for indicating whether the refrigerant circulation condition of the air conditioner meets the requirement or not, when the target indoor machine is judged to meet the single-machine refrigeration quick action entering condition, the refrigerant circulation in the air conditioner is weak and does not meet the requirement, the refrigeration capacity of the indoor machine is weak, measures need to be taken to accelerate the refrigerant circulation quantity at the moment, namely, the single-machine refrigeration quick action needs to be entered, so that the refrigerant enters the indoor machine as soon as possible, otherwise, the refrigerant circulation of the air conditioner meets the requirement, the refrigerant circulation quantity does not need to be accelerated at the moment, and the single-machine refrigeration quick action does not need to be entered. In specific implementation, the entry condition of the single-machine refrigeration quick-action may be set according to an actual situation, and is not limited herein.
Specifically, the judging whether the target indoor unit in the cooling operation state meets a preset single-unit cooling quick-action entry condition specifically includes:
judging whether the temperature of an inlet pipe of a target indoor unit in a refrigerating operation state is continuously smaller than a preset third temperature threshold value within first preset time, and whether the temperature of a coil pipe is continuously larger than or equal to a difference value between the indoor environment temperature and a preset fourth temperature threshold value within second preset time, if so, judging that the preset target indoor unit meets the single-unit refrigerating quick-action entering condition, and if not, judging that the target indoor unit does not meet the single-unit refrigerating quick-action entering condition.
Optionally, the first preset time and the second preset time are both 3min, the third temperature threshold is-5 ℃, and the fourth temperature threshold is 5 ℃. Taking this as an example, when only one of all indoor units connected to a multi-room air conditioner is started and performs cooling operation, if the inlet pipe temperature T of the target indoor unit occursliq-5 deg.C and lasting 3 minutes, while the coil temperature T of the target indoor unitcoilNot less than indoor ambient temperature TambWhen the temperature is minus 5 ℃ and the duration is 3 minutes, the situation that a large amount of refrigerants in the whole air conditioner system are accumulated on the outdoor side and cannot normally enter the indoor side, the suction pressure is reduced, the temperature of an inlet pipe of the indoor unit is continuously reduced, meanwhile, a small amount of refrigerants on the indoor side are seriously overheated, the temperature of an indoor side coil pipe is continuously increased, and measures are needed to accelerate the circulation of the refrigerants so that the refrigerants can enter the indoor unit as soon as possible.
And S13, controlling the opening of the electronic expansion valve of the target indoor unit to increase or controlling the opening of the electronic expansion valve of the target indoor unit and the running frequency of the compressor to increase according to the size relation among the inlet pipe temperature of the target indoor unit, a preset first temperature threshold and a preset second temperature threshold, and controlling the target indoor unit to run according to a system automatic control strategy of the air conditioner until the target indoor unit is judged to meet a preset single-unit refrigeration quick action exit condition.
The severity of the refrigerant shortage condition of the target indoor unit is judged by judging the magnitude relation among the inlet pipe temperature of the target indoor unit, the preset first temperature threshold and the preset second temperature threshold. Optionally, the first temperature threshold is smaller than the second temperature threshold, when the temperature of the inlet pipe of the target indoor unit is smaller than the first temperature threshold, it is indicated that the target indoor unit lacks a refrigerant seriously, and the refrigerant circulation can be accelerated only by simultaneously matching the compressor and the electronic expansion valve, and when the temperature of the inlet pipe of the target indoor unit is greater than or equal to the first temperature threshold and smaller than or equal to the second temperature threshold, it is indicated that the indoor unit lacks a refrigerant lightly, and the refrigerant circulation can be accelerated only by controlling the opening of the electronic expansion valve to increase.
The single-unit refrigeration quick-action exit condition is used for indicating whether the refrigerant circulation condition of the air conditioner meets the requirement or not, when the single-unit refrigeration quick-action exit condition is met, the refrigerant normally enters the target indoor unit and normally circulates, the single-unit refrigeration quick action exits at the moment, namely the increase of the opening of the electronic expansion valve of the target indoor unit is stopped or the opening of the electronic expansion valve of the target indoor unit and the increase of the running frequency of the compressor are controlled, the target indoor unit is controlled to run according to a system automatic control strategy of the air conditioner, namely the target indoor unit enters the system to be normally and automatically controlled, and otherwise, the refrigerant circulation does not meet the requirement. The system automatic control strategy may be an original system automatic control strategy of the air conditioner, that is, an automatic control strategy set in factory, or may be an automatic control strategy after other optimization, and may be set according to an actual situation in specific implementation, which is not limited herein.
In specific implementation, the first temperature threshold and the second temperature threshold may be set according to actual situations, and are not limited herein. Optionally, the first temperature threshold is-15 ℃ and the second temperature threshold is-5 ℃.
Optionally, after entering the normal automatic control of the system, the method may further return to step S11 to continuously detect the single-machine refrigeration condition and perform corresponding control, so as to continuously ensure the refrigeration capacity of the indoor unit that is independently turned on during the operation of the air conditioner.
Specifically, referring to fig. 2, step S13 includes steps S131 to S135, which are as follows:
s131, judging the size relation among the inlet pipe temperature of the target indoor unit, a preset first temperature threshold and a preset second temperature threshold, if the inlet pipe temperature of the target indoor unit is judged to be smaller than the first temperature threshold, jumping to S132, and if the inlet pipe temperature of the target indoor unit is judged to be larger than or equal to the first temperature threshold and smaller than or equal to the second temperature threshold, jumping to S133;
s132, controlling the opening of the electronic expansion valve of the target indoor unit and the increase of the running frequency of the compressor, and jumping to the step S134;
s133, controlling the opening of the electronic expansion valve of the target indoor unit to increase, and jumping to the step S134;
s134, judging whether the target indoor unit meets a preset single-unit refrigeration quick action exit condition or not, if so, skipping to the step S135, and if not, repeatedly executing the step;
and S135, controlling the target indoor unit to operate according to the system automatic control strategy of the air conditioner.
Wherein, taking the first temperature threshold equal to-15 ℃ and the second temperature threshold equal to-5 ℃ as an example, if the inlet pipe temperature T of the target indoor unit isliq-15 ℃, which shows that the condition of lack of refrigerant in the target indoor unit is very serious at the moment, and the refrigerant circulation can be accelerated only by simultaneously matching the compressor and the electronic expansion valve; if the inlet pipe temperature of the target indoor unit is less than or equal to T under minus 15 DEG CliqThe temperature is less than or equal to minus 5 ℃, which indicates that the target indoor unit lacks a refrigerant and can accelerate the refrigerant circulation only by the electronic expansion valve. After the parameters are adjusted, if the target indoor unit meets the preset single-machine refrigeration quick-action exit condition, the refrigerant is normally circulated, at the moment, the single-machine refrigeration quick action can be exited, the system enters normal automatic control, otherwise, the step S134 is repeatedly executed until the target indoor unit meets the preset single-machine refrigeration quick-action exit condition.
Optionally, the controlling the opening of the electronic expansion valve of the target indoor unit and the increase of the operating frequency of the compressor specifically includes:
controlling the opening degree of an electronic expansion valve of the target indoor unit to increase to a preset valve step; and the number of the first and second groups,
and controlling the running frequency of the compressor of the target indoor unit to increase a preset running frequency threshold value on the current basis.
The preset valve step and the operation frequency threshold may be set according to actual conditions, and are not limited herein. Optionally, the preset valve step is 300 steps, and the operating frequency threshold is 5 Hz. For example, the operation frequency of the compressor is controlled to be increased by 5Hz on the basis of the current step number, and the electronic expansion valve is directly opened by 300 steps on the basis of the current step number.
Optionally, the controlling the opening of the electronic expansion valve of the target indoor unit to increase specifically includes:
and controlling the opening degree of the electronic expansion valve of the target indoor unit to increase to a preset valve step.
The preset valve steps can be set according to actual conditions, and are not limited herein. Optionally, the preset valve step is 300 steps. For example, the electronic expansion valve is controlled to be opened up to 300 steps directly based on the current step number.
Specifically, whether the target indoor unit meets a preset single-machine refrigeration quick action exit condition is judged in the following way:
and judging whether the temperature of an inlet pipe of the target indoor unit is continuously greater than a preset fifth temperature threshold value within a third preset time, and whether the temperature of the coil pipe is continuously less than the difference value between the indoor environment temperature and a preset sixth temperature threshold value within a fourth preset time, if so, judging that the target indoor unit meets a preset single-unit refrigeration quick action quit condition, and if not, judging that the target indoor unit does not meet the single-unit refrigeration quick action quit condition.
In specific implementation, the third preset time, the fourth preset time, the fifth temperature threshold and the sixth temperature threshold may be set according to actual conditions, and are not limited herein. Optionally, the third preset time and the fourth preset time are both 3min, the fifth temperature threshold is 0 ℃, the sixth temperature threshold is 10 ℃, and taking this as an example, if the inlet pipe temperature T of the target indoor unit occursliqIs more than 0 ℃ and lasts for 3 minutes, and meanwhile, the temperature T of the coil pipe of the internal machine iscoil< indoor ambient temperature TambWhen the temperature is minus 10 ℃ and the duration is 3 minutes, the refrigerant normally enters the indoor unit, the suction pressure is increased, the temperature of an inlet pipe of the indoor unit is increased, and meanwhile, the refrigerant is increasedThe superheat degree is reduced, the temperature of the coil pipe of the indoor unit is reduced, the refrigerant is normally circulated, and the single-unit refrigeration rapid action can be quitted at the moment, so that the normal automatic control of the system is achieved.
In the air conditioner control method provided by the embodiment of the invention, when detecting that one or only one indoor unit is in a cooling operation state in all indoor units connected with the air conditioner, judging whether the target indoor machine in the refrigeration running state meets the preset single-machine refrigeration quick action entering condition or not, and when judging that the target indoor machine meets the preset single-machine refrigeration quick action entering condition, and controlling the opening of the electronic expansion valve of the target indoor unit to increase or controlling the opening of the electronic expansion valve of the target indoor unit and the running frequency of the compressor to increase according to the size relation among the inlet pipe temperature of the target indoor unit, the preset first temperature threshold and the preset second temperature threshold, and controlling the target indoor unit to run according to a system automatic control strategy of the air conditioner until the target indoor unit is judged to meet the preset single-unit refrigeration quick-action exit condition. According to the scheme, under the condition that a single machine is used for refrigerating and the refrigerant circulation is weak, the opening of the electronic expansion valve of the target indoor machine is controlled to be increased correspondingly or the opening of the electronic expansion valve of the target indoor machine which is started independently and the running frequency of the compressor are controlled to be increased simultaneously, so that the refrigerant circulation is accelerated, the refrigerating capacity of the target indoor machine which is started independently is ensured, the refrigerating requirement of a user is met, and the use comfort of the user is improved.
Fig. 3 is a schematic structural diagram of an air conditioner control device according to an embodiment of the present invention.
An embodiment of the present invention provides an air conditioner control device, including:
the single-machine refrigeration running state judging module 21 is used for detecting whether or not all indoor machines connected with the air conditioner are in a refrigeration running state, and only one indoor machine is in the refrigeration running state;
a single-machine refrigeration quick-action entry condition judgment module 22, configured to judge whether a target indoor unit in a refrigeration operation state meets a preset single-machine refrigeration quick-action entry condition;
and the single-machine refrigeration quick action control module 23 is configured to control an opening of an electronic expansion valve of the target indoor machine to be increased or control an opening of an electronic expansion valve of the target indoor machine and an increase of an operation frequency of a compressor of the target indoor machine to be increased according to a size relationship between the inlet pipe temperature of the target indoor machine, a preset first temperature threshold and a preset second temperature threshold, and control the target indoor machine to operate according to a system automatic control strategy of the air conditioner until the target indoor machine is judged to meet a preset single-machine refrigeration quick action exit condition.
The principle of the air conditioner control device provided in this embodiment to realize air conditioner control is the same as that in the above embodiments, and is not described herein again.
The air conditioner control device provided by the embodiment of the invention detects that one or more indoor units connected with the air conditioner are in a cooling operation state, judging whether the target indoor machine in the refrigeration running state meets the preset single-machine refrigeration quick action entering condition or not, and when judging that the target indoor machine meets the preset single-machine refrigeration quick action entering condition, and controlling the opening of the electronic expansion valve of the target indoor unit to increase or controlling the opening of the electronic expansion valve of the target indoor unit and the running frequency of the compressor to increase according to the size relation among the inlet pipe temperature of the target indoor unit, the preset first temperature threshold and the preset second temperature threshold, and controlling the target indoor unit to run according to a system automatic control strategy of the air conditioner until the target indoor unit is judged to meet the preset single-unit refrigeration quick-action exit condition. According to the scheme, under the condition that a single machine is used for refrigerating and the refrigerant circulation is weak, the opening of the electronic expansion valve of the target indoor machine is controlled to be increased correspondingly or the opening of the electronic expansion valve of the target indoor machine which is started independently and the running frequency of the compressor are controlled to be increased simultaneously, so that the refrigerant circulation is accelerated, the refrigerating capacity of the target indoor machine which is started independently is ensured, the refrigerating requirement of a user is met, and the use comfort of the user is improved.
Fig. 4 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention.
An air conditioner provided in an embodiment of the present invention includes a processor 31, a memory 32, and a computer program stored in the memory 32 and configured to be executed by the processor 31, and when the processor 31 executes the computer program, the air conditioner control method according to any of the above embodiments is implemented.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, where when the computer program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the air conditioner control method according to any of the above embodiments.
The processor 31, when executing the computer program, implements the steps of the various embodiments of the air conditioner control method described above, such as all the steps of the air conditioner control method shown in fig. 1. Alternatively, the processor 31 may implement the functions of the modules/units in the embodiments of the air conditioner control device described above, for example, the functions of the modules of the air conditioner control device shown in fig. 3, when executing the computer program.
Illustratively, the computer program may be divided into one or more modules, which are stored in the memory 32 and executed by the processor 31 to accomplish the present invention. The one or more modules may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program in the air conditioner. For example, the computer program may be divided into a single-machine cooling operation state judgment module, a single-machine cooling fast operation entry condition judgment module, and a single-machine cooling fast operation control module, and the specific functions of each module are as follows: the single-machine refrigeration running state judging module is used for detecting whether one or more indoor machines connected with the air conditioner are in a refrigeration running state; the single-machine refrigeration quick action entering condition judging module is used for judging whether the target indoor machine in the refrigeration running state meets the preset single-machine refrigeration quick action entering condition or not; and the single-machine refrigeration quick action control module is used for controlling the opening of an electronic expansion valve of the target indoor machine to be increased or controlling the opening of the electronic expansion valve of the target indoor machine and the running frequency of a compressor to be increased according to the size relation among the inlet pipe temperature of the target indoor machine, a preset first temperature threshold and a preset second temperature threshold, and controlling the target indoor machine to run according to a system automatic control strategy of the air conditioner until the target indoor machine is judged to meet a preset single-machine refrigeration quick action quit condition.
The air conditioner may include, but is not limited to, a processor 31, a memory 32. Those skilled in the art will appreciate that the schematic diagram is merely an example of an air conditioner and is not meant to be limiting, and may include more or fewer components than those shown, or some components in combination, or different components, e.g., the air conditioner may also include input output devices, network access devices, buses, etc.
The Processor 31 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general processor may be a microprocessor or the processor may be any conventional processor, etc., and the processor 31 is a control center of the air conditioner and connects various parts of the whole air conditioner by using various interfaces and lines.
The memory 32 may be used to store the computer programs and/or modules, and the processor 31 implements various functions of the air conditioner by running or executing the computer programs and/or modules stored in the memory 32 and calling data stored in the memory 32. The memory 32 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the air conditioner, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
Wherein the air conditioner integrated module/unit, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An air conditioner control method is characterized by comprising the following steps:
detecting whether all indoor units connected with the air conditioner are in a refrigerating operation state or not, and if so, entering the next step;
judging whether a target indoor unit in a refrigeration running state meets a preset single-machine refrigeration quick action entering condition or not, and entering the next step if the target indoor unit in the refrigeration running state meets the preset single-machine refrigeration quick action entering condition;
and controlling the opening of an electronic expansion valve of the target indoor unit to be increased or controlling the opening of the electronic expansion valve of the target indoor unit and the running frequency of a compressor to be increased according to the size relation among the inlet pipe temperature of the target indoor unit, a preset first temperature threshold and a preset second temperature threshold, and controlling the target indoor unit to run according to a system automatic control strategy of the air conditioner until the target indoor unit is judged to meet a preset single-unit refrigeration quick action exit condition.
2. The air conditioner control method according to claim 1, wherein said determining whether the target indoor unit in the cooling operation state satisfies a preset single-unit cooling fast-acting entry condition specifically comprises:
judging whether the temperature of an inlet pipe of a target indoor unit in a refrigerating operation state is continuously smaller than a preset third temperature threshold value within first preset time, and whether the temperature of a coil pipe is continuously larger than or equal to a difference value between the indoor environment temperature and a preset fourth temperature threshold value within second preset time, if so, judging that the preset target indoor unit meets the single-unit refrigerating quick-action entering condition, and if not, judging that the target indoor unit does not meet the single-unit refrigerating quick-action entering condition.
3. The method according to claim 1, wherein the controlling the opening of the electronic expansion valve of the target indoor unit to be increased or the opening of the electronic expansion valve of the target indoor unit to be increased and the operating frequency of the compressor to be increased according to the magnitude relationship between the inlet pipe temperature of the target indoor unit, the preset first temperature threshold and the preset second temperature threshold until the target indoor unit is determined to satisfy the preset stand-alone refrigeration quick-action exit condition, controls the target indoor unit to operate according to a system automatic control strategy of the air conditioner, specifically comprising:
s131, judging the size relation among the inlet pipe temperature of the target indoor unit, a preset first temperature threshold and a preset second temperature threshold, if the inlet pipe temperature of the target indoor unit is judged to be smaller than the first temperature threshold, jumping to S132, and if the inlet pipe temperature of the target indoor unit is judged to be larger than or equal to the first temperature threshold and smaller than or equal to the second temperature threshold, jumping to S133;
s132, controlling the opening of the electronic expansion valve of the target indoor unit and the increase of the running frequency of the compressor, and jumping to the step S134;
s133, controlling the opening of the electronic expansion valve of the target indoor unit to increase, and jumping to the step S134;
s134, judging whether the target indoor unit meets a preset single-unit refrigeration quick action exit condition or not, if so, skipping to the step S135, and if not, repeatedly executing the step;
and S135, controlling the target indoor unit to operate according to the system automatic control strategy of the air conditioner.
4. The air conditioner control method according to claim 1 or 3, wherein the controlling of the opening degree of the electronic expansion valve of the target indoor unit and the increase of the compressor operation frequency specifically includes:
controlling the opening degree of an electronic expansion valve of the target indoor unit to increase to a preset valve step; and the number of the first and second groups,
and controlling the running frequency of the compressor of the target indoor unit to increase a preset running frequency threshold value on the current basis.
5. The air conditioner control method according to claim 1 or 3, wherein the controlling of the increase in the opening degree of the electronic expansion valve of the target indoor unit is specifically:
and controlling the opening degree of the electronic expansion valve of the target indoor unit to increase to a preset valve step.
6. The air conditioner controlling method as claimed in claim 1 or 3, wherein it is judged whether the target indoor unit satisfies a preset stand-alone cooling quick-acting exiting condition by:
and judging whether the temperature of an inlet pipe of the target indoor unit is continuously greater than a preset fifth temperature threshold value within a third preset time, and whether the temperature of the coil pipe is continuously less than the difference value between the indoor environment temperature and a preset sixth temperature threshold value within a fourth preset time, if so, judging that the target indoor unit meets a preset single-unit refrigeration quick action quit condition, and if not, judging that the target indoor unit does not meet the single-unit refrigeration quick action quit condition.
7. An air conditioner control device, comprising:
the single-machine refrigeration running state judging module is used for detecting whether one or more indoor machines connected with the air conditioner are in a refrigeration running state;
the single-machine refrigeration quick action entering condition judging module is used for judging whether the target indoor machine in the refrigeration running state meets the preset single-machine refrigeration quick action entering condition or not;
and the single-machine refrigeration quick action control module is used for controlling the opening of an electronic expansion valve of the target indoor machine to be increased or controlling the opening of the electronic expansion valve of the target indoor machine and the running frequency of a compressor to be increased according to the size relation among the inlet pipe temperature of the target indoor machine, a preset first temperature threshold and a preset second temperature threshold, and controlling the target indoor machine to run according to a system automatic control strategy of the air conditioner until the target indoor machine is judged to meet a preset single-machine refrigeration quick action quit condition.
8. An air conditioner comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the air conditioner control method according to any one of claims 1 to 6 when executing the computer program.
9. A computer-readable storage medium, comprising a stored computer program, wherein when the computer program is executed, the computer-readable storage medium controls an apparatus to perform the air conditioner control method according to any one of claims 1 to 6.
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