CN114704949A - Control method of air conditioner, air conditioner and storage medium - Google Patents
Control method of air conditioner, air conditioner and storage medium Download PDFInfo
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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
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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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- 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
- F24F2110/12—Temperature of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses a control method of an air conditioner, the air conditioner and a storage medium. Wherein, the method comprises the following steps: receiving a starting instruction of a compressor of the air conditioner, and acquiring indoor ambient temperature and outdoor ambient temperature; determining a first temperature difference value between the indoor environment temperature and a set temperature; determining a target frequency of the compressor according to the first temperature difference value and the outdoor environment temperature; controlling the compressor to ramp up to the target frequency. The invention aims to improve the accuracy of regulating and controlling the heat exchange quantity input into a room by an air conditioner when a compressor is started so as to improve the comfort of users in an indoor environment.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner, the air conditioner and a storage medium.
Background
With the development of economic technology, air conditioners are in widespread use. At present, after a compressor in an air conditioner is started, the compressor firstly operates in a frequency raising mode, and frequency regulation and control are carried out according to the operation requirement of the air conditioner after the compressor operates in the frequency raising mode to reach a target frequency.
However, the target frequency required to be achieved after the compressor is started is a parameter determined by the outdoor environment temperature of the air conditioner, which easily causes the heat exchange quantity after the air conditioner is started to be too small or too large, and influences the comfort of users in the indoor environment.
Disclosure of Invention
The invention mainly aims to provide a control method of an air conditioner, the air conditioner and a storage medium, aiming at improving the accuracy of regulation and control of heat exchange quantity input into a room by the air conditioner when a compressor is started so as to improve the comfort of users in an indoor environment.
In order to achieve the above object, the present invention provides a method for controlling an air conditioner, comprising the steps of:
receiving a starting instruction of a compressor of the air conditioner, and acquiring indoor ambient temperature and outdoor ambient temperature;
determining a first temperature difference value between the indoor environment temperature and a set temperature;
determining a target frequency of the compressor according to the first temperature difference value and the outdoor environment temperature;
controlling the compressor to increase the frequency to the target frequency.
Optionally, the step of determining the target frequency of the compressor according to the first temperature difference value and the outdoor ambient temperature comprises:
determining a reference frequency of the compressor according to the outdoor ambient temperature;
and determining the target frequency according to the first temperature difference value and the reference frequency.
Optionally, the reference frequency comprises a maximum frequency at which the compressor is allowed to operate, and the step of determining the target frequency based on the first temperature difference value and the reference frequency comprises:
determining a frequency difference value between the maximum frequency and a preset minimum frequency of the compressor, and determining a correction value according to the first temperature difference value and a set temperature difference value;
correcting the frequency difference value according to the correction value to obtain a frequency adjustment value;
and adjusting the preset minimum frequency according to the frequency adjustment value to obtain the target frequency.
Optionally, the target frequency is linearly positively correlated with the first temperature difference value.
Optionally, the step of determining the target frequency of the compressor according to the first temperature difference value and the outdoor ambient temperature comprises:
determining a second temperature difference value between the indoor ambient temperature and the outdoor ambient temperature;
acquiring a target corresponding relation according to the second temperature difference value, wherein the target corresponding relation is the corresponding relation among the first temperature difference value, the outdoor environment temperature and the target frequency;
and determining the target frequency corresponding to the first temperature difference value and the outdoor environment temperature according to the target corresponding relation.
Optionally, the step of obtaining the target corresponding relationship according to the second temperature difference value includes:
when the second temperature difference value is larger than the target temperature difference, acquiring a first preset corresponding relation as the target corresponding relation;
when the second temperature difference value is smaller than or equal to the target temperature difference, acquiring a second preset corresponding relation as the target corresponding relation;
the first target frequency is greater than a second target frequency, the first target frequency is a target frequency corresponding to the first temperature difference value and the outdoor environment temperature in the first preset corresponding relation, and the second target frequency is a target frequency corresponding to the first temperature difference value and the outdoor environment temperature in the second preset corresponding relation.
Optionally, the step of controlling the compressor to ramp up to the target frequency comprises:
acquiring a target rotating speed of the operation of an indoor fan of the air conditioner;
determining the frequency increasing rate of the compressor according to the target rotating speed and the first temperature difference value;
and controlling the compressor to be boosted to the target frequency according to the boosting rate.
Optionally, the step of determining the frequency increasing rate of the compressor according to the target rotation speed and the first temperature difference value comprises:
determining a reference rate according to the first temperature difference value, and determining a rate adjustment value according to the target rotating speed;
adjusting the reference rate according to the rate adjustment value to obtain the frequency-increasing rate;
wherein the frequency-increasing rate is in positive correlation with the first temperature difference value, and the frequency-increasing rate is in negative correlation with the target rotating speed.
Further, in order to achieve the above object, the present application also proposes an air conditioner including:
a compressor;
a control device, the compressor being connected with the control device, the control device comprising: the control method comprises the steps of realizing the control method of the air conditioner according to any one of the above items when the control program of the air conditioner is executed by the processor.
In order to achieve the above object, the present application also proposes a storage medium having a control program of an air conditioner stored thereon, the control program of the air conditioner implementing the steps of the control method of the air conditioner as set forth in any one of the above when executed by a processor.
The invention provides a control method of an air conditioner, which determines a target frequency required to be reached after a compressor is started based on a first temperature difference value between indoor environment temperature and set temperature and the outdoor environment temperature when the compressor is started, controls the compressor to be raised to the target frequency to operate, and can accurately reflect the actual heat exchange requirement of an indoor user through the first temperature difference value.
Drawings
FIG. 1 is a schematic diagram of the hardware involved in the operation of an embodiment of the air conditioner of the present invention;
FIG. 2 is a flowchart illustrating an embodiment of a method for controlling an air conditioner according to the present invention;
FIG. 3 is a flow chart illustrating a control method of an air conditioner according to another embodiment of the present invention;
FIG. 4 is a diagram illustrating a quantitative relationship between a first temperature difference value and a target frequency in different heat exchange modes according to an embodiment of the method for controlling an air conditioner of the present invention;
FIG. 5 is a flow chart illustrating a control method of an air conditioner according to another embodiment of the present invention;
fig. 6 is a flowchart illustrating a control method of an air conditioner according to still 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 are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: receiving a starting instruction of a compressor of the air conditioner, and acquiring indoor ambient temperature and outdoor ambient temperature; determining a first temperature difference value between the indoor environment temperature and a set temperature; determining a target frequency of the compressor according to the first temperature difference value and the outdoor environment temperature; controlling the compressor to increase the frequency to the target frequency.
In the prior art, the target frequency required to be achieved after the compressor is started is a parameter determined according to the outdoor environment temperature of the air conditioner, so that the indoor heat exchange quantity after the air conditioner is started is too small or too large, and the comfort of users in the indoor environment is affected.
The invention provides the solution, and aims to improve the accuracy of regulation and control of the heat exchange quantity input into the room by the air conditioner when the compressor is started so as to improve the comfort of users in the indoor environment.
The embodiment of the invention provides an air conditioner. The air conditioner can be any air conditioner such as a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, a mobile air conditioner, a ceiling air conditioner or a multi-split air conditioner.
In the embodiment of the present invention, the air conditioner includes a compressor 1 and a control device connected to the compressor 1. The control device can regulate the operation of the compressor 1. The compressor 1 herein specifically refers to a compressor 1 in a refrigerant circulation circuit of an air conditioner, and the refrigerant circulation circuit may include the compressor 1, a first heat exchanger, a throttling device, and a second heat exchanger. When the compressor 1 is in a starting state, the refrigerant discharged by the compressor 1 flows through the first heat exchanger, the throttling device and the second heat exchanger in sequence and then flows back to the compressor 1.
Further, the air conditioner further comprises an ambient temperature detection module 3, and the ambient temperature detection module 3 comprises a first sensor and a second sensor. The environment temperature detection module 3 is connected with a control device, and the control device can be used for acquiring indoor environment of the first sensor in the environment room and detecting indoor environment temperature; the second sensor is arranged in the outdoor environment and used for detecting the temperature of the outdoor environment.
In an embodiment of the present invention, referring to fig. 1, a control apparatus of an air conditioner includes: a processor 1001 (e.g., a CPU), a memory 1002, a timer 1003, and the like. The components in the control device are connected by a communication bus. The memory 1002 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1002 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the device illustrated in fig. 1 is not intended to be limiting of the device, and may include more or fewer components than those illustrated, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a control program of the air conditioner may be included in the memory 1002 as a kind of storage medium. In the apparatus shown in fig. 1, the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1002 and perform operations of the relevant steps of the control method of the air conditioner in the following embodiments.
The embodiment of the invention also provides a control method of the air conditioner, which is applied to the air conditioner.
Referring to fig. 2, an embodiment of a control method of an air conditioner according to the present application is provided. In this embodiment, the method for controlling an air conditioner includes:
step S10, receiving a starting instruction of a compressor of the air conditioner, and acquiring indoor environment temperature and outdoor environment temperature;
the starting instruction can be generated according to an instruction input by a user, and can also be generated according to the actual scene condition of the indoor environment monitored by the air conditioner. For example, the start instruction may be generated when an indoor unit of the air conditioner receives a start instruction, or the start instruction may be generated when the air conditioner monitors that the indoor environment temperature deviates from a preset comfortable temperature interval.
In this embodiment, after receiving a start instruction of the compressor, the compressor may be controlled to maintain the off state and obtain the indoor ambient temperature and the outdoor ambient temperature. In other embodiments, the compressor may also be controlled to perform frequency boosting at a rate less than a set rate, and the indoor ambient temperature and the outdoor ambient temperature are obtained during the frequency boosting; the compressor may also be controlled to operate at an initial frequency (e.g., a preset minimum frequency mentioned later) that is lower than the set frequency, and the indoor ambient temperature and the outdoor ambient temperature are obtained at the initial frequency of operation of the compressor.
In this embodiment, the data detected in real time by the ambient temperature detection module is acquired as the indoor ambient temperature and the outdoor ambient temperature. In other embodiments, the indoor ambient temperature and the outdoor ambient temperature may also be determined by obtaining a plurality of data detected by the ambient temperature detection module within a preset time period after receiving the start instruction of the compressor.
Step S20, determining a first temperature difference value between the indoor environment temperature and a set temperature;
the set temperature is a target value to which the temperature of the indoor environment in which the air conditioner is located needs to be set in advance.
In this embodiment, the first temperature difference value is a calculation result obtained by subtracting the set temperature from the indoor ambient temperature. In other embodiments, the first temperature difference value may also be an absolute value of a calculation result obtained by subtracting the indoor ambient temperature from the set temperature; the first temperature difference value may also be an absolute value of a calculation result obtained by subtracting the set temperature from the indoor ambient temperature.
Specifically, when the air conditioner is in a heating mode, the first temperature difference value is a calculation result obtained by subtracting a set temperature from the indoor environment temperature; when the air conditioner is in a cooling mode, the first temperature difference value is a calculation result obtained by subtracting the indoor environment from the set temperature.
Step S30, determining the target frequency of the compressor according to the first temperature difference value and the outdoor environment temperature;
different first temperature difference values and different outdoor ambient temperatures may correspond to different target frequencies. In the present embodiment, the target frequency is positively correlated with the first temperature difference value and positively correlated with the outdoor ambient temperature. The corresponding relationship among the first temperature difference value, the outdoor environment temperature and the target frequency may be a preset fixed relationship, or a target corresponding relationship selected from at least two preset corresponding relationships according to the actual operation condition of the air conditioner. The correspondence may have the form of a calculation formula, a mapping relationship, or the like.
In this embodiment, if the current operation modes of the air conditioner are different, the corresponding relationship between the first temperature difference value, the outdoor ambient temperature, and the target frequency is different. Specifically, when the air conditioner is in the cooling mode, the target frequency corresponding to the first temperature difference value and the outdoor environment temperature can be determined based on the first corresponding relation; when the air conditioner is in the heating mode, the target frequency corresponding to the first temperature difference value and the outdoor environment temperature can be determined based on the second corresponding relation.
When the indoor ambient temperature and the outdoor ambient temperature are detected in the process that the compressor is subjected to frequency rising at the initial frequency or at the rate less than the set rate, the target frequency can be determined according to the indoor ambient temperature and the outdoor ambient temperature in the frequency range greater than or equal to the initial frequency or greater than or equal to the critical frequency corresponding to the frequency rising rate.
And step S40, controlling the compressor to increase the frequency to the target frequency.
Specifically, when the compressor currently maintains the closed state, the compressor can be increased from the frequency of 0 to the target frequency for operation; when the compressor is in the starting state, the compressor can be increased from the current frequency to the target frequency for operation.
According to the control method of the air conditioner, when the compressor is started, the target frequency required to be achieved after the compressor is started is determined based on the first temperature difference value between the indoor environment temperature and the set temperature and the outdoor environment temperature, the compressor is controlled to be raised to the target frequency to operate, the first temperature difference value can accurately reflect the actual heat exchange requirement of an indoor user, and based on the control method, the starting frequency of the compressor is not regulated and controlled based on the outdoor environment temperature alone, but the starting frequency of the compressor is further regulated and controlled in combination with the actual heat exchange requirement of the indoor user, so that the matching between the heat exchange quantity input into the room by the air conditioner and the actual requirement of the user is ensured, the regulation and control accuracy of the heat exchange quantity input into the room by the air conditioner when the compressor is started is effectively improved, and the comfort of the indoor environment user is improved.
Further, based on the above embodiments, another embodiment of the control method of the air conditioner of the present application is provided. In this embodiment, referring to fig. 3, the step S30 includes:
step S31, determining the reference frequency of the compressor according to the outdoor environment temperature;
different outdoor ambient temperatures correspond to different reference frequencies. The reference frequency is positively correlated with the outdoor ambient temperature. Specifically, the reference frequency can be calculated by substituting the outdoor environment temperature into a preset functional relation between the outdoor temperature and the frequency, and the result of matching a preset mapping table between the outdoor temperature and the frequency can also be inquired as the reference frequency through the outdoor environment temperature.
Step S32, determining the target frequency according to the first temperature difference value and the reference frequency;
specifically, an adjustment value of the reference frequency can be determined according to the first temperature difference value, and a frequency adjustment value is obtained after the reference frequency is adjusted according to the adjustment value; or taking the difference value between the reference frequency and the preset frequency as an initial adjustment value, and taking the first temperature difference value adjustment initial adjustment value as the target frequency.
In this embodiment, the reference frequency includes a maximum frequency that the compressor is allowed to operate, where the maximum frequency is specifically an upper limit frequency of the compressor when the compressor is reliably operated under the current operating condition. The preset frequency includes a preset minimum frequency of the compressor. The preset minimum frequency may be a preset fixed frequency, or a frequency selected from a plurality of preset minimum frequencies according to the current indoor fan rotation speed of the air conditioner. Determining a frequency difference value between the maximum frequency and a preset minimum frequency of the compressor, and determining a correction value according to the first temperature difference value and a set temperature difference value; correcting the frequency difference value according to the correction value to obtain a frequency adjustment value; and adjusting the preset minimum frequency according to the frequency adjustment value to obtain the target frequency.
The frequency difference here is understood to be the amplitude to which the compressor allows regulation, the amplitude varying with the outdoor ambient temperature.
The corrected value can reflect the heat exchange quantity required by the current indoor environment. In this embodiment, the ratio of the first temperature difference value to the set temperature difference value is used as the correction value. In other embodiments, the difference between the first temperature difference and the set temperature difference may be used as the correction value.
In this embodiment, a product of a ratio of the first temperature difference value to the set temperature difference value and the frequency difference value is used as the frequency adjustment value, and a sum of the frequency adjustment value and the preset minimum frequency is used as the target frequency. In other embodiments, a preset adjustment value associated with a value interval in which the difference value between the first temperature difference value and the set temperature difference value is located may also be used as the frequency adjustment value; in addition, the product or quotient between the preset minimum frequency and the frequency adjustment value may also be used as the target frequency.
In addition to determining the target frequency by combining the maximum frequency, the minimum preset frequency and the first temperature difference value, in other embodiments, the adjustment coefficient may also be determined according to the first temperature difference value, and the target frequency is obtained by directly adjusting the maximum frequency of the compressor allowed to operate according to the adjustment coefficient.
In this embodiment, the target frequency after the compressor is started is determined by combining the first temperature difference value and the reference frequency corresponding to the outdoor environment temperature, so that the reference frequency (such as the maximum frequency allowed to operate) required by the current working condition can be corrected by combining the indoor actual heat exchange requirement, and the accuracy of the obtained target frequency is further ensured, so that the indoor comfort is improved. The target frequency is determined by combining the maximum frequency, the preset minimum frequency and the set temperature difference value, so that the accuracy of the determined target frequency is improved, and the comfort of indoor users is improved.
Further, in this embodiment, the target frequency is linearly and positively correlated with the first temperature difference value. The vertical axis Δ T is defined to represent the first temperature difference value, and the horizontal axis represents the target frequency. As shown in fig. 4(a), a linear variation relationship between a target frequency and a first temperature difference value during heating operation of the air conditioner is shown, wherein heating Fmax is a reference frequency determined based on the outdoor environment temperature during heating operation; as shown in fig. 4(b), the linear variation relationship between the target frequency and the first temperature difference value during the cooling operation of the air conditioner is shown, wherein the cooling Fmax is a reference frequency determined based on the outdoor environment temperature during the cooling operation. Specifically, a linear positive correlation between the target frequency and the first temperature difference value may be established according to the reference frequency, and if the reference frequency is different, the linear positive correlation between the target frequency and the first temperature difference value is different. Specifically, in the linear positive correlation, the larger the reference frequency is, the larger the variation of the target frequency with the change of the first temperature difference value is, and the smaller the reference frequency is, the smaller the variation of the target frequency with the change of the first temperature difference value is. Based on this, can ensure that the target frequency of compressor can with the accurate matching of the heat transfer volume of the indoor comfortable demand that first difference in temperature corresponds to further improve the travelling comfort of indoor environment.
In other embodiments, the target frequency and the first temperature difference value may be exponentially and positively correlated.
In order to better understand the solution related to the present embodiment, a specific implementation manner is described below when the air conditioner operates in heating mode, specifically, the target frequency for starting the compressor may be determined by the first temperature difference value and the following preset formula:
wherein, Fmax1 is the target frequency, T1 is the indoor environment temperature, Tsc is the set temperature, T1-Tsc is the first temperature difference value,
in order to set the value of the temperature difference,
as the correction value, Fmax is a reference frequency (i.e., a maximum frequency), Fmin is a preset minimum frequency, and Fmax-Fmin is the frequency difference;
the target frequency can be directly calculated by substituting the first temperature difference value into the preset formula, and can also be determined by utilizing other corresponding relations according with the rules embodied by the preset formula. It should be noted that the above formula is only used to explain the solution of the present embodiment, and is not meant to limit the scope of the present application, and any other corresponding relationship between the first temperature difference value and the target frequency, which conforms to the law shown in the above formula, is within the scope of the present embodiment, for example, any mapping relationship, graph, algorithm model, etc., which conforms to the law shown in the above formula.
Further, based on any of the above embodiments, another embodiment of the control method of the air conditioner of the present application is provided. In this embodiment, referring to fig. 5, the step S30 includes:
step S301, determining a second temperature difference value between the indoor environment temperature and the outdoor environment temperature;
the second temperature difference value is a calculation result obtained by subtracting the indoor environment temperature from the outdoor environment temperature when the air conditioner operates in a refrigerating mode; and the second temperature difference value is a calculation result obtained by subtracting the outdoor environment temperature from the indoor environment temperature when the air conditioner performs heating operation.
Step S302, obtaining a target corresponding relation according to the second temperature difference value, wherein the target corresponding relation is the corresponding relation among the first temperature difference value, the outdoor environment temperature and the target frequency;
the different second temperature difference values correspond to different target corresponding relations, and the target corresponding relations can include calculation formulas, mapping relations and other forms. In this embodiment, when the second temperature difference value is greater than the target temperature difference, the first preset corresponding relationship is obtained as the target corresponding relationship; when the second temperature difference value is smaller than or equal to the target temperature difference, acquiring a second preset corresponding relation as the target corresponding relation; the first target frequency is greater than a second target frequency, the first target frequency is a target frequency corresponding to the first temperature difference value and the outdoor environment temperature in the first preset corresponding relation, and the second target frequency is a target frequency corresponding to the first temperature difference value and the outdoor environment temperature in the second preset corresponding relation. The target temperature difference may be a preset fixed temperature difference, or may be a temperature difference determined according to the actual operation condition of the air conditioner, for example, the first temperature difference value may be used as the target temperature difference.
In other embodiments, a plurality of value intervals may also be preset, each value interval is associated with a preset corresponding relationship between the first temperature difference value and the target frequency, and the preset corresponding relationships associated with different value intervals are different. Based on this, the section where the second temperature difference value is located in the plurality of numerical value sections may be the target section, and the preset corresponding relationship associated with the target section may be the target corresponding relationship.
Step S303, determining the target frequency corresponding to the first temperature difference value and the outdoor environment temperature according to the target corresponding relation.
The target correspondence relationship may specifically include a first sub-relationship and a second sub-relationship, where the first sub-relationship is a correspondence relationship between the outdoor environment temperature and the reference frequency, and the second sub-relationship is a correspondence relationship between the first temperature difference value, the reference frequency, and the target frequency, and the reference frequency corresponding to the outdoor environment temperature may be determined based on the first sub-relationship, and the target frequency corresponding to the first temperature difference value and the reference frequency may be determined based on the second sub-relationship. Further, the second sub-relationship may include a corresponding relationship between the first temperature difference value and the set temperature difference value and a corresponding relationship between the correction value and the frequency difference value and a corresponding relationship between the frequency adjustment value and the target frequency, and the target frequency may be determined according to the refinement scheme mentioned in the above embodiment based on the second sub-relationship.
In this embodiment, the target frequency is determined based on the target corresponding relationship obtained by the second temperature difference value, so that the determined target frequency is favorable for achieving effective consideration of the operational reliability of the compressor and the indoor heat exchange requirement.
Further, based on any of the above embodiments, a further embodiment of the control method of the air conditioner of the present application is provided. In this embodiment, referring to fig. 6, the S40 includes:
step S41, acquiring a target rotating speed of the indoor fan of the air conditioner;
the target rotating speed can be obtained by acquiring a wind speed setting parameter of the user about the air conditioner when the compressor is started.
Step S42, determining the frequency increasing rate of the compressor according to the target rotating speed and the first temperature difference value;
different target rotation speeds and different first temperature difference values correspond to different frequency increasing rates. Specifically, in the present embodiment, the frequency increasing rate is negatively correlated with the target rotation speed, and the frequency increasing rate is positively correlated with the first temperature difference value. The corresponding relation among the target rotating speed, the first temperature difference value and the frequency increasing rate can be preset or can be obtained according to the second temperature difference value, and the corresponding relation can be in the forms of a mapping relation, a calculation formula and the like.
In the embodiment, a reference rate is determined according to the first temperature difference value, and a rate adjustment value is determined according to the target rotating speed; adjusting the reference rate according to the rate adjustment value to obtain the frequency-increasing rate; wherein the frequency increasing rate is positively correlated with the first temperature difference value, and the frequency increasing rate is negatively correlated with the target rotating speed. In this embodiment, the rate adjustment value is a rate adjustment amplitude, and a calculation result obtained by subtracting the rate adjustment amplitude from the reference rate is used as the frequency-up rate. In other embodiments, the rate adjustment value may also be a rate adjustment ratio, and the product of the reference rate and the rate adjustment ratio may be used as the frequency increasing rate.
And step S43, controlling the compressor to increase the frequency to the target frequency according to the frequency increasing rate.
In this embodiment, the target rotational speed and the first temperature difference value of indoor fan operation can accurately reflect the change of indoor environment temperature and the condition of comfortable demand after the compressor starts, the frequency-raising rate control compressor frequency-raising to the target frequency determined by combining the target rotational speed and the first temperature difference value is favorable to guaranteeing that the frequency-raising rate of the compressor is not too fast, the excessive regulation of the heat exchange quantity output by the air conditioner to the indoor environment temperature is avoided, the frequency-raising rate of the compressor is guaranteed not to be too slow, the heat exchange quantity output is guaranteed to enable the indoor environment to reach the set temperature meeting the comfortable demand of the user as soon as possible, and therefore the comfort of the indoor user is further improved.
In addition, an embodiment of the present invention further provides a storage medium, where a control program of an air conditioner is stored on the storage medium, and when the control program of the air conditioner is executed by a processor, the relevant steps of any embodiment of the above control method of the air conditioner are implemented.
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 merely for description and do not represent the merits of the embodiments.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only 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 (10)
1. A control method of an air conditioner is characterized by comprising the following steps:
receiving a starting instruction of a compressor of the air conditioner, and acquiring indoor ambient temperature and outdoor ambient temperature;
determining a first temperature difference value between the indoor environment temperature and a set temperature;
determining a target frequency of the compressor according to the first temperature difference value and the outdoor environment temperature;
controlling the compressor to increase the frequency to the target frequency.
2. The control method of an air conditioner according to claim 1, wherein the step of determining the target frequency of the compressor based on the first temperature difference value and the outdoor ambient temperature comprises:
determining a reference frequency of the compressor according to the outdoor ambient temperature;
and determining the target frequency according to the first temperature difference value and the reference frequency.
3. The control method of an air conditioner according to claim 2, wherein the reference frequency includes a maximum frequency at which the compressor is allowed to operate, and the step of determining the target frequency based on the first temperature difference value and the reference frequency includes:
determining a frequency difference value between the maximum frequency and a preset minimum frequency of the compressor, and determining a correction value according to the first temperature difference value and a set temperature difference value;
correcting the frequency difference value according to the correction value to obtain a frequency adjustment value;
and adjusting the preset minimum frequency according to the frequency adjustment value to obtain the target frequency.
4. The control method of an air conditioner according to claim 2, wherein the target frequency is linearly and positively correlated with the first temperature difference value.
5. The control method of an air conditioner according to any one of claims 1 to 4, wherein the step of determining the target frequency of the compressor based on the first temperature difference value and the outdoor ambient temperature includes:
determining a second temperature difference value between the indoor ambient temperature and the outdoor ambient temperature;
acquiring a target corresponding relation according to the second temperature difference value, wherein the target corresponding relation is the corresponding relation among the first temperature difference value, the outdoor environment temperature and the target frequency;
and determining the target frequency corresponding to the first temperature difference value and the outdoor environment temperature according to the target corresponding relation.
6. The control method of an air conditioner according to claim 5, wherein the step of obtaining the target correspondence relationship according to the second temperature difference value includes:
when the second temperature difference value is larger than the target temperature difference, acquiring a first preset corresponding relation as the target corresponding relation;
when the second temperature difference value is smaller than or equal to the target temperature difference, acquiring a second preset corresponding relation as the target corresponding relation;
the first target frequency is greater than a second target frequency, the first target frequency is a target frequency corresponding to the first temperature difference value and the outdoor environment temperature in the first preset corresponding relation, and the second target frequency is a target frequency corresponding to the first temperature difference value and the outdoor environment temperature in the second preset corresponding relation.
7. The control method of an air conditioner according to any one of claims 1 to 4, wherein the step of controlling the compressor to ramp up to the target frequency includes:
acquiring a target rotating speed of an indoor fan of the air conditioner in operation;
determining the frequency increasing rate of the compressor according to the target rotating speed and the first temperature difference value;
and controlling the compressor to be boosted to the target frequency according to the boosting rate.
8. The control method of an air conditioner according to claim 7, wherein the step of determining the up-conversion rate of the compressor based on the target rotation speed and the first temperature difference value comprises:
determining a reference rate according to the first temperature difference value, and determining a rate adjustment value according to the target rotating speed;
adjusting the reference rate according to the rate adjustment value to obtain the frequency-increasing rate;
wherein the frequency increasing rate is positively correlated with the first temperature difference value, and the frequency increasing rate is negatively correlated with the target rotating speed.
9. An air conditioner, characterized in that the air conditioner comprises:
a compressor;
a control device, the compressor being connected with the control device, the control device comprising: 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 according to any one of claims 1 to 8 when executed by the processor.
10. A storage medium, characterized in that a control program of an air conditioner is stored thereon, and the control program of the air conditioner realizes the steps of the control method of the air conditioner according to any one of claims 1 to 8 when executed by a processor.
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| CN115711468A (en) * | 2022-11-30 | 2023-02-24 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, air conditioner and storage medium |
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