CN113834197B - Control method of air conditioner, terminal equipment and storage medium - Google Patents
Control method of air conditioner, terminal equipment and storage medium Download PDFInfo
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- CN113834197B CN113834197B CN202010517043.2A CN202010517043A CN113834197B CN 113834197 B CN113834197 B CN 113834197B CN 202010517043 A CN202010517043 A CN 202010517043A CN 113834197 B CN113834197 B CN 113834197B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method of an air conditioner, which comprises the following steps: when the multi-split air conditioner operates in a heating mode, acquiring the indoor environment temperature in an action space of an indoor unit; determining the heating speed in the action space of the indoor unit according to the indoor environment temperature; and when the temperature rise speed is greater than the target temperature rise speed, reducing the shutdown temperature of the indoor unit. The invention also discloses an air conditioner and a computer readable storage medium, which achieve the effect of avoiding the overheating phenomenon.
Description
Technical Field
The present invention relates to the field of virtual reality technologies, and in particular, to a control method for an air conditioner, a terminal device, and a computer-readable storage medium.
Background
The multi-split central air conditioner is a type of central air conditioner for users, and is commonly called as one-split-multiple central air conditioner, and refers to an air conditioner in which one outdoor unit is connected with two or more indoor units through a pipe.
When the multi-split air conditioner heats in winter, the indoor unit adjusts the environmental temperature in the corresponding action space to the set temperature and then executes the temperature-reaching shutdown action. However, when the plurality of indoor units are simultaneously started and only part of the indoor units in the plurality of indoor units meet the temperature-reaching shutdown condition, the compressor can continue to operate to ensure the heating effect of other indoor units which do not meet the temperature-reaching shutdown regulation.
In order to prevent the insufficient amount of refrigerant in the system caused by the accumulation of the refrigerant in the indoor unit which is at the temperature-reaching shutdown, the electronic expansion valve corresponding to the indoor unit at the temperature-reaching shutdown is opened for a small number of steps, so as to continuously discharge the liquid refrigerant at a small flow rate. Therefore, the indoor unit meeting the temperature-reaching shutdown condition continuously supplies heat to the action space, and the action space is overheated.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The present invention provides a control method for an air conditioner, an air conditioner and a computer readable storage medium, which are capable of preventing overheating.
In order to achieve the above object, the present invention provides a method for controlling an air conditioner, comprising the steps of:
acquiring the indoor environment temperature in the action space of the indoor unit;
determining the heating speed in the action space of the indoor unit according to the indoor environment temperature;
and when the temperature rise speed is greater than the target temperature rise speed, reducing the shutdown temperature of the indoor unit.
Optionally, before the step of determining a temperature increase rate in an action space of the indoor unit according to an indoor environment temperature, the method further includes:
acquiring a set temperature corresponding to the indoor unit;
and when the indoor environment temperature and the set temperature meet preset conditions, executing the step of determining the heating speed in the action space of the indoor unit according to the indoor environment temperature.
Optionally, the preset condition includes that the indoor environment temperature is greater than or equal to a first temperature, where the first temperature is determined according to the set temperature, and the first temperature is less than the set temperature.
Optionally, the control method of the air conditioner further includes:
and when the indoor unit meets a shutdown condition, controlling an electronic expansion valve corresponding to the indoor unit to be opened to a preset opening degree, wherein the shutdown condition comprises that the indoor temperature is higher than or equal to the shutdown temperature.
Optionally, after the step of controlling the electronic expansion valve corresponding to the indoor unit to be opened to a preset opening degree, the method further includes:
and when the indoor environment temperature meets an overheating condition, controlling an electronic expansion valve corresponding to the indoor unit to be intermittently closed and opened, wherein the overheating condition comprises that the indoor environment temperature is greater than or equal to a second temperature, the second temperature is determined according to the set temperature, and the second temperature is greater than or equal to the set temperature.
Optionally, the overheating condition further includes that the temperature rising speed is greater than a corresponding preset temperature rising speed in a shutdown state.
Optionally, before the step of reducing the shutdown temperature of the indoor unit when the temperature increase speed is greater than the target temperature increase speed, the method further includes:
acquiring a pre-stored standard temperature rise speed;
and determining the target temperature-rising speed according to the standard temperature-rising speed and at least one of the compressor frequency of the air conditioner, the outdoor environment temperature corresponding to the environment where the air conditioner is located and the indoor environment temperature.
Optionally, a trend of the target temperature increasing speed is the same as a trend of the compressor frequency and the outdoor ambient temperature, and the target temperature increasing speed is opposite to a trend of the indoor ambient temperature.
Optionally, the step of determining a temperature rise rate in an action space of the indoor unit according to an indoor environment temperature includes:
and acquiring the change rate of the indoor environment temperature in the action space of the indoor unit within a preset time period as the heating speed.
Optionally, the step of reducing the shutdown temperature of the indoor unit includes:
determining a reduction value of the shutdown temperature according to a difference value between the heating speed and the target heating speed;
and reducing the shutdown temperature of the indoor unit according to the drop value.
In addition, in order to achieve the above object, the present invention further provides an air conditioner, the air conditioner includes a memory, a processor, and a control program of the air conditioner stored in the memory and operable on the processor, and the control program of the air conditioner implements the steps of the control method of the air conditioner as described above when executed by the processor.
Further, to achieve the above object, the present invention also provides a computer readable storage medium having stored thereon a control program of an air conditioner, which when executed by a processor, realizes the steps of the control method of the air conditioner as described above.
According to the control method of the air conditioner, the air conditioner and the computer readable storage medium provided by the embodiment of the invention, the indoor environment temperature in the action space of the indoor unit is firstly obtained, the heating speed in the action space of the indoor unit is determined according to the indoor environment temperature, and the shutdown temperature of the indoor unit is reduced when the heating speed is greater than the target heating speed. When the temperature rise speed in the action space is higher than the target temperature rise speed, the heat dissipation speed in the action space is low, so that the overheating phenomenon is easy to occur after the air conditioner normally enters the shutdown state, the shutdown temperature of the indoor unit is reduced, the air conditioner enters the shutdown state in advance, and the overheating phenomenon in the action space can be avoided.
Drawings
Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a control method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method of an air conditioner according to another embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
In order to prevent the insufficient amount of refrigerant in the system caused by the accumulation of the refrigerant in the indoor unit which is at the temperature-reaching shutdown, the electronic expansion valve corresponding to the indoor unit at the temperature-reaching shutdown is opened for a small number of steps, so that the refrigerant is continuously discharged in a small flow. Therefore, the indoor unit meeting the temperature-reaching shutdown condition continuously supplies heat to the action space, and the action space is overheated.
In order to solve the above-mentioned defects of the existing air conditioner control method, the embodiment of the invention provides a control method of an air conditioner, and the main solution thereof comprises the following steps:
acquiring the indoor environment temperature in the action space of the indoor unit;
determining the heating speed in the action space of the indoor unit according to the indoor environment temperature;
and when the temperature rise speed is greater than the target temperature rise speed, reducing the shutdown temperature of the indoor unit.
When the temperature rise speed in the action space is higher than the target temperature rise speed, the heat dissipation speed in the action space is low, so that the overheating phenomenon is easy to occur after the air conditioner normally enters the shutdown state, the shutdown temperature of the indoor unit is reduced, the air conditioner enters the shutdown state in advance, and the overheating phenomenon in the action space can be avoided.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be terminal equipment such as an air conditioner and the like.
As shown in fig. 1, the terminal may include: a processor 1001, e.g. a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a control panel, etc., and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a control program of an air conditioner.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1005, and perform the following operations:
acquiring the indoor environment temperature in the action space of the indoor unit;
determining the heating speed in the action space of the indoor unit according to the indoor environment temperature;
and when the temperature rise speed is greater than the target temperature rise speed, reducing the shutdown temperature of the indoor unit.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
acquiring a set temperature corresponding to the indoor unit;
and when the indoor environment temperature and the set temperature meet a preset condition, executing the step of determining the heating speed in the action space of the indoor unit according to the indoor environment temperature, wherein the preset condition comprises that the indoor environment temperature is greater than or equal to a first temperature, the first temperature is determined according to the set temperature, and the first temperature is less than the set temperature.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
and when the indoor unit meets a shutdown condition, controlling an electronic expansion valve corresponding to the indoor unit to be opened to a preset opening degree, wherein the shutdown condition comprises that the indoor temperature is higher than or equal to the shutdown temperature.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
and when the indoor environment temperature meets an overheating condition, controlling an electronic expansion valve corresponding to the indoor unit to be intermittently closed and opened, wherein the overheating condition comprises that the indoor environment temperature is greater than or equal to a second temperature, the second temperature is determined according to the set temperature, and the second temperature is greater than or equal to the set temperature.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
acquiring a pre-stored standard temperature rise speed;
and determining the target temperature-rising speed according to the standard temperature-rising speed and at least one of the compressor frequency of the air conditioner, the outdoor environment temperature corresponding to the environment where the air conditioner is located and the indoor environment temperature.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
and acquiring the change rate of the indoor environment temperature in the action space of the indoor unit within a preset time period as the heating speed.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
determining a reduction value of the shutdown temperature according to a difference value between the heating speed and the target heating speed;
and reducing the shutdown temperature of the indoor unit according to the drop value.
Referring to fig. 2, in an embodiment of the control method of an air conditioner of the present invention, the control method of an air conditioner includes the steps of:
step S10, acquiring the indoor environment temperature in the action space of the indoor unit;
step S20, determining the heating speed in the action space of the indoor unit according to the indoor environment temperature;
and step S30, when the temperature rising speed is larger than the target temperature rising speed, reducing the shutdown temperature of the indoor unit.
The control method of the air conditioner is applied to a multi-split air conditioner, namely a one-driving-multiple air conditioner. The multi-split air conditioner is provided with at least two indoor units connected with one outdoor unit, wherein each indoor unit of the multi-split air conditioner can be installed in different spaces so as to adjust the temperature of the different spaces. A user can selectively open part of indoor units or all indoor units in the multi-split air conditioner through the control terminal connected with each multi-split air conditioner. Wherein, the control terminal can be a control panel or a mobile terminal. When the control terminal is a mobile terminal, the air conditioner is also provided with a network communication module so as to receive a control instruction sent by the mobile terminal.
When a user simultaneously opens at least two indoor units of the multi-split air conditioner and the multi-split air conditioner operates in a heating mode, the indoor units of the multi-split air conditioner cannot simultaneously reach a shutdown condition due to the difference of the heat dissipation speed and the space size of the acting space of each indoor unit and the heating temperature set by the user. And further, when partial indoor units in the starting state reach the stop condition, the outdoor unit still continues to operate. When the multi-split air conditioner is in a heating mode, in order to avoid the phenomenon that the refrigerant is condensed and accumulated in the indoor heat exchanger of the indoor unit which is in a warm shutdown state due to the fact that the electronic expansion valve corresponding to the indoor unit which is in a warm shutdown state is completely closed, and thus the refrigerant quantity is insufficient, the electronic expansion valve corresponding to the indoor unit which is in a warm shutdown state is controlled to be continuously opened to a smaller opening degree, so that the indoor unit which is in a warm shutdown state can continuously discharge the refrigerant with a small flow quantity. However, the indoor unit of the air conditioner can continuously heat the acting space, so that the acting space corresponding to the indoor unit which is stopped at a warm state is overheated.
It will be appreciated that the shutdown condition is generally set to a room temperature greater than or equal to a set temperature. The indoor unit which is shut down at the temperature is the indoor unit which meets the shut-down condition.
In this embodiment, when the air conditioner enters the heating mode, the indoor ambient temperature in the operating space of each indoor unit of the air conditioner may be obtained. It is understood that the air conditioner may directly enter the heating mode when receiving the power-on command, and the air conditioner may be configured to obtain the indoor ambient temperature when receiving the power-on command. Alternatively, when the operation mode when the air conditioner is turned on is a heating mode other than the heating mode, the step S10 may be executed when a control command for switching the current operation mode to the heating mode is received.
Specifically, each indoor unit of the air conditioner is provided with a corresponding file detection sensor, wherein the temperature detection sensor can be integrally arranged with the indoor unit of the air conditioner or can be separately arranged from the indoor unit of the air conditioner. The temperature detection sensor corresponding to each indoor unit is set to detect the indoor environment temperature in the action space of the corresponding indoor unit. The air conditioner can obtain the indoor environment temperature in the action space corresponding to each indoor unit at regular time or in real time.
Further, after the air conditioner obtains the indoor environment temperature in the action space corresponding to the indoor unit, the temperature rise speed in the action space corresponding to the indoor unit can be determined according to the indoor environment temperature.
Specifically, as an implementation manner, the air conditioner may obtain the indoor environment temperature in the action space corresponding to each indoor unit in real time, determine the change rate of the indoor environment temperature in the time change dimension according to the indoor environment temperature collected in real time, and further use the average change rate of the indoor temperature in any period of time as the temperature rise speed of the air conditioner in the period of time.
As another embodiment, the air conditioner may periodically collect the indoor ambient temperature, and then calculate a temperature difference between the indoor ambient temperature collected at the second time point and the indoor ambient temperature collected at the first time point. Wherein the second point in time is subsequent to the first point in time. And determining a time interval between the first point in time and the second point in time. And then determining the heating speed according to the temperature difference between the indoor environment temperature collected at the second time point and the indoor environment temperature collected at the first time point and the time interval between the first time point and the second time point. For example, the temperature increase rate may be calculated according to the following formula:
T V ＝(T 2 -T 1 )/(t 2 -t 1 )
wherein, T V The temperature rise rate is set; t is 1 And T 2 The indoor environment temperature collected at the first time point and the indoor environment temperature collected at the second time point are respectively measured; t is t 2 And t 1 Respectively a first time point and a second time point.
Further, after the temperature rise rate is determined, a preset standard temperature rise rate may be obtained, where the standard temperature rise rate is a fixed value pre-stored in the air conditioner. And determining a target temperature-rising speed according to the standard temperature-rising speed. And comparing the currently determined heating speed with the target heating speed, and reducing the shutdown temperature of the indoor unit when the heating speed is greater than the target heating speed.
Specifically, in order to avoid the overheating phenomenon in the operating space, when the temperature rise rate in the operating space is greater than the target temperature rise rate, the shutdown temperature of the indoor unit may be reduced, so that the indoor unit may enter a shutdown operation in advance. It is understood that the initial value of the shutdown temperature of the indoor unit is generally set to the set temperature of the indoor unit; the overheating phenomenon means that the indoor environment temperature in the action space of the indoor unit is higher than the set temperature.
Alternatively, as an implementation, when the temperature-increasing speed is greater than the target temperature-increasing speed, the air conditioner may be set to decrease the shutdown temperature by a fixed value. In a specific embodiment, the fixed value may be set to any value of 1 ℃ to 4 ℃, for example, 2 ℃ or 3 ℃.
As another implementation, when the temperature-increasing speed is greater than the target temperature-increasing speed, the decrease value of the shutdown temperature may also be determined according to the difference between the temperature-increasing speed and the target temperature-increasing speed. Wherein, the larger the difference between the temperature-rising speed and the target temperature-rising speed is, the larger the reduction value of the shutdown temperature is. In one embodiment, a fixed mapping relationship may exist between the difference between the temperature-raising rate and the target temperature-raising rate and the drop value of the shutdown temperature, and the fixed mapping relationship may be stored in the air conditioner in advance. Since there may be a difference between hardware devices of different air conditioners, the present embodiment does not limit a specific numerical value correspondence relationship of a mapping relationship between a difference between the temperature increase speed and the target temperature increase speed and a decrease value of the shutdown temperature. The air conditioner producer can set by self according to self requirements.
It is understood that the target temperature increasing speed has the same variation trend as the compressor frequency and the outdoor ambient temperature, and the target temperature increasing speed has the opposite variation trend to the indoor ambient temperature in the present implementation.
When the temperature rise speed is less than or equal to the target temperature rise speed, the heat dissipation speed of the action space of the indoor unit is high, so that the phenomenon of overheating is not easy to occur in the action space of the indoor unit. Therefore, when the temperature increase rate is less than or equal to the target temperature increase rate, the shutdown temperature may be maintained at the set temperature.
As an implementation manner, when the temperature increase rate is lower than the target temperature increase rate and the difference between the target temperature increase rate and the temperature increase rate is greater than the set value, the air conditioner may appropriately increase the shutdown temperature according to the temperature increase rate. For example, the shutdown temperature is set to the set temperature plus the rise n. Wherein the rise amount n is determined according to a difference between the target temperature rise rate and the temperature rise rate.
Optionally, when the indoor unit meets a shutdown condition, that is, when the indoor temperature in the action space corresponding to the indoor unit is greater than or equal to the shutdown temperature, the air conditioner is controlled to execute a shutdown action. The electronic expansion valve corresponding to the indoor unit can be controlled to be opened to a preset opening degree, and the windshield is lowered.
In the technical scheme disclosed in this embodiment, an indoor ambient temperature in an active space of an indoor unit is obtained first, a temperature rise rate in the active space of the indoor unit is determined according to the indoor ambient temperature, and when the temperature rise rate is greater than a target temperature rise rate, a shutdown temperature of the indoor unit is reduced. When the temperature rise speed in the action space is higher than the target temperature rise speed, the heat dissipation speed in the action space is low, so that the overheating phenomenon is easy to occur after the air conditioner normally enters the shutdown state, the shutdown temperature of the indoor unit is reduced, the air conditioner enters the shutdown state in advance, and the overheating phenomenon in the action space can be avoided.
Alternatively, based on the above-described embodiment, in another embodiment, when the target temperature increase rate is determined from the standard temperature increase rate, the standard temperature increase rate may be directly taken as the target temperature increase rate. Alternatively, the standard temperature increase rate may be corrected based on at least one of the indoor ambient temperature, the outdoor ambient temperature, and the compressor frequency, and then the corrected standard temperature increase rate may be set as the target temperature increase rate.
Specifically, when the standard temperature increase rate is corrected based on at least one of an indoor ambient temperature, an outdoor ambient temperature, and a compressor frequency, the larger the compressor frequency and the outdoor ambient temperature, the larger the target temperature increase rate, and the larger the indoor ambient temperature, the smaller the target temperature increase rate.
Illustratively, a mapping relation between the indoor ambient temperature, the outdoor ambient temperature and/or the compressor frequency and the correction amount, which is pre-stored in the air conditioner, is obtained, and then the correction amount corresponding to the indoor ambient temperature, the outdoor ambient temperature and/or the compressor frequency is determined according to the mapping relation. And then correcting the standard temperature rising speed according to the correction quantity corresponding to the indoor environment temperature, the outdoor environment temperature and/or the compressor frequency.
It is understood that when the standard temperature increasing rate is corrected by a correction amount corresponding to one of the indoor ambient temperature, the outdoor ambient temperature and the compressor frequency, the sum of the standard temperature increasing rate and the correction amount may be directly used as the target temperature increasing rate. When the standard temperature rising speed is corrected according to at least two correction amounts corresponding to the indoor ambient temperature, the outdoor ambient temperature and the compressor frequency, the weight corresponding to each correction amount is firstly obtained, then the final correction amount is calculated by weighting according to the weight corresponding to each correction amount, and the sum of the final correction amount and the standard temperature rising speed and the correction amount is used as the target temperature rising speed.
In the technical scheme disclosed in this embodiment, the target temperature-raising speed is determined according to the indoor ambient temperature, the outdoor ambient temperature and the standard temperature-raising speed dynamically corrected by the compressor frequency, so that the effect of improving the rationality of the judgment result is achieved.
Referring to fig. 3, in another embodiment of the method for controlling an air conditioner of the present invention, after the step S30, the method further includes:
and step S40, when the indoor environment temperature meets an overheating condition, controlling an electronic expansion valve corresponding to the indoor unit to be intermittently closed and opened, wherein the overheating condition includes that the indoor environment temperature is greater than or equal to a second temperature, the second temperature is determined according to the set temperature, and the second temperature is greater than or equal to the set temperature.
In this embodiment, when the air conditioner satisfies the shutdown condition, the shutdown operation is performed, and the air conditioner enters the shutdown state. When the air conditioner operates in a shutdown state, if the indoor environment temperature is greater than or equal to the second temperature, the overheating phenomenon in the action space is judged. The second temperature may be determined according to a set temperature, for example, the second temperature may be set as the set temperature. Alternatively, the second temperature may be set to be the sum of the set temperature and the redundancy value. The redundancy value is set to be a fixed constant and can be stored in the air conditioner in advance.
Optionally, as an implementation manner, it may be further determined that the corresponding indoor unit meets the overheating condition when the indoor environment temperature is greater than or equal to the second temperature and the temperature increase speed corresponding to the current time period is greater than a preset temperature increase speed corresponding to the stopped state of the air conditioner.
When the indoor environment temperature meets the overheat condition, the air conditioner can be controlled to intermittently open and close the electronic expansion valve. When the electronic expansion valve is completely closed, the indoor unit stops providing heat to the action space, so that the temperature in the action space is reduced due to the fact that the action space externally radiates heat. In order to avoid the accumulation of the refrigerant in the indoor unit, the electronic expansion valve may be closed for a predetermined time and then opened to an opening corresponding to the shutdown state for the refrigerant to flow out. Wherein the opening and closing time periods of the electronic expansion valve may be set to fixed values. When the indoor environment temperature does not meet the overheating condition, the indoor unit stops the action of intermittently opening and closing the electronic expansion valve and continues to operate and stop.
In the technical scheme disclosed in this embodiment, when the indoor ambient temperature satisfies the overheat condition, the electronic expansion valve corresponding to the indoor unit is controlled to be intermittently closed and opened, so that the indoor ambient temperature in the action space with the overheat phenomenon is reduced, the phenomenon that refrigerant is accumulated in the indoor unit due to condensation is avoided, and the effect of improving the rationality of the control logic of the air conditioner is achieved.
In addition, an embodiment of the present invention further provides an air conditioner, where the air conditioner includes a memory, a processor, and a control program of the air conditioner that is stored in the memory and is executable on the processor, and the control program of the air conditioner, when executed by the processor, implements the steps of the control method of the air conditioner according to the above embodiments.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where a control program of an air conditioner is stored, and the control program of the air conditioner, when executed by a processor, implements the steps of the control method of the air conditioner according to the above embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or the portions contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above and includes several instructions for causing a terminal device (which may be an air conditioner, etc.) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A control method of an air conditioner, characterized by comprising:
acquiring the indoor environment temperature in an action space of an indoor unit;
determining the heating speed in the action space of the indoor unit according to the indoor environment temperature;
when the temperature rise speed is greater than the target temperature rise speed, reducing the shutdown temperature of the indoor unit;
when the indoor unit meets a shutdown condition, controlling an electronic expansion valve corresponding to the indoor unit to be opened to a preset opening degree, wherein the shutdown condition comprises that the indoor environment temperature is higher than or equal to the shutdown temperature;
and when the indoor environment temperature meets an overheating condition, controlling an electronic expansion valve corresponding to the indoor unit to be intermittently closed and opened, wherein the overheating condition comprises that the indoor environment temperature is greater than or equal to a second temperature, the second temperature is determined according to a set temperature, and the second temperature is greater than or equal to the set temperature.
2. The method of controlling an air conditioner according to claim 1, wherein the step of determining a temperature rise rate in the active space of the indoor unit based on the indoor ambient temperature is preceded by the step of:
acquiring a set temperature corresponding to the indoor unit;
and when the indoor environment temperature and the set temperature meet a preset condition, executing the step of determining the heating speed in the action space of the indoor unit according to the indoor environment temperature, wherein the preset condition comprises that the indoor environment temperature is greater than or equal to a first temperature, the first temperature is determined according to the set temperature, and the first temperature is less than the set temperature.
3. The control method of an air conditioner according to claim 1, wherein the overheat condition further comprises that the temperature rise rate is greater than a corresponding preset temperature rise rate in a shutdown state.
4. The method of controlling an air conditioner according to claim 1, further comprising, before the step of lowering the shutdown temperature of the indoor unit when the temperature increase rate is greater than a target temperature increase rate:
acquiring a pre-stored standard temperature rise speed;
and determining the target temperature-rising speed according to the standard temperature-rising speed and at least one of the compressor frequency of the air conditioner, the outdoor environment temperature corresponding to the environment where the air conditioner is located and the indoor environment temperature.
5. The control method of an air conditioner according to claim 4, wherein the target temperature-increasing speed has the same variation tendency as the compressor frequency and the outdoor ambient temperature, and the target temperature-increasing speed has the opposite variation tendency to the indoor ambient temperature.
6. The method of controlling an air conditioner according to claim 1, wherein the step of determining a temperature rise rate in the operating space of the indoor unit based on the indoor ambient temperature includes:
and acquiring the change rate of the indoor environment temperature in the action space of the indoor unit within a preset time period as the heating speed.
7. The control method of an air conditioner according to claim 1, wherein the step of lowering the shutdown temperature of the indoor unit includes:
determining a reduction value of the shutdown temperature according to a difference value between the heating speed and the target heating speed;
and reducing the shutdown temperature of the indoor unit according to the drop value.
8. A terminal device, characterized in that the terminal device comprises: a memory, a processor, and a control program of an air conditioner stored on the memory and executable on the processor, the control program of the air conditioner implementing the steps of the control method of the air conditioner as claimed in any one of claims 1 to 7 when executed by the processor.
9. A computer-readable storage medium, characterized in that a control program of an air conditioner is stored thereon, which when executed by a processor, implements the steps of the control method of an air conditioner according to any one of claims 1 to 7.
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