CN114909777A - Defrosting control method and device for air conditioner, terminal and storage medium - Google Patents

Defrosting control method and device for air conditioner, terminal and storage medium Download PDF

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Publication number
CN114909777A
CN114909777A CN202210612889.3A CN202210612889A CN114909777A CN 114909777 A CN114909777 A CN 114909777A CN 202210612889 A CN202210612889 A CN 202210612889A CN 114909777 A CN114909777 A CN 114909777A
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temperature
air conditioner
predetermined
mode
time
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程竹
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • 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
    • 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
    • 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
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The embodiment of the disclosure discloses a defrosting control method of an air conditioner, which comprises the following steps: the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. In the embodiment of the disclosure, entering into the defrosting mode or exiting from the defrosting mode may be determined according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period, and the predetermined operation may be adapted to the frosting degree parameter, so that compared with a mode of determining entering into the defrosting mode or exiting from the defrosting mode based on only a temperature value of a coil of the air conditioner, a defrosting process may be accurately and reliably performed, and a heat exchange efficiency of the air conditioner is improved.

Description

Defrosting control method and device for air conditioner, terminal and storage medium
Technical Field
The present disclosure relates to the field of wireless communications technologies, but not limited to the field of wireless communications technologies, and in particular, to a defrosting control method and apparatus for an air conditioner, a terminal, and a storage medium.
Background
When the air conditioner operates in heating mode, the heat exchanger of the outdoor unit is used as an evaporator to participate in refrigerant circulation. Because the low-temperature refrigerant is evaporated in the coil of the outdoor heat exchanger, a large amount of heat is absorbed, and when the surface temperature of the heat exchanger is lower than the dew point temperature (frost point temperature) of the humid air in the environment, the moisture in the outdoor humid air is condensed on the surface of the evaporator fin, so that frost is formed.
In the correlation technique, under the frosting condition, the heat exchange area of off-premises station can reduce, and the heat transfer difference in temperature also can reduce simultaneously, and whole heat exchange efficiency reduces. And along with the thickening of frost layer, heat exchange efficiency can be lower and lower.
Disclosure of Invention
The embodiment of the disclosure discloses a defrosting control method and device of an air conditioner, a terminal and a storage medium.
According to a first aspect of embodiments of the present disclosure, there is provided a defrosting control method of an air conditioner, the method including:
the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located;
determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode.
In one embodiment, the frosting degree parameter is a parameter determined according to an integration result of a difference value between the first temperature and the second temperature within the first predetermined time period determined based on the current time.
In one embodiment, the frosting degree parameter is a parameter determined according to the sum of the difference value and the correction coefficient and the integration result in the first predetermined time period determined based on the current time.
In one embodiment, the determining whether to perform the predetermined operation according to the frost formation degree parameter determined based on the first temperature and the second temperature within the first predetermined period of time includes:
in response to the first temperature being less than a temperature threshold, determining whether to perform a predetermined operation according to a frost formation degree parameter determined based on the first temperature and the second temperature within a first predetermined period.
In one embodiment, the determining whether to perform the predetermined operation according to the frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period in response to the first temperature being less than a temperature threshold value includes:
in response to the first temperature being less than a temperature threshold after the air conditioner enters a heating mode for a predetermined period of time, determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature.
In one embodiment, the determining whether to perform the predetermined operation according to the frost formation degree parameter determined based on the first temperature and the second temperature within the first predetermined period of time includes:
determining whether to perform the predetermined operation based on the frosting degree parameter and a difference value between the first temperature and the second temperature which are currently acquired.
In one embodiment, the determining whether to perform the predetermined operation based on the frosting degree parameter and the difference between the first temperature and the second temperature obtained currently includes:
determining to enter a defrost mode in response to a first predetermined condition being met, wherein the first predetermined condition includes at least one of:
the frosting degree parameter is larger than a parameter threshold value;
the difference between the first temperature and the second temperature is less than a first predetermined value.
In one embodiment, the method further comprises:
determining to exit the defrost mode in response to a second predetermined condition being met after entering the defrost mode, wherein the second predetermined condition includes at least one of:
the first temperature is greater than a second predetermined value;
the air conditioner is operated in the defrosting mode for a time period longer than a second preset time period.
In one embodiment, the second predetermined time period is determined according to a reference time period, wherein the reference time period is a time period between a time when the air conditioner enters the heating mode and a time when the air conditioner enters the defrosting mode.
According to a second aspect of the embodiments of the present disclosure, there is provided a defrosting control apparatus of an air conditioner, the apparatus including:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring a first temperature of an outdoor unit heat exchanger coil of an air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located;
a determination module for determining whether to perform a predetermined operation according to a frost formation degree parameter determined based on the first temperature and the second temperature within a first predetermined period; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode.
In one embodiment, the determination module is further configured to: the frosting degree parameter is a parameter determined according to an integration result of the difference value of the first temperature and the second temperature in the first preset time period determined at the current moment.
In one embodiment, the determination module is further configured to: the frosting degree parameter is a parameter determined according to the sum of the difference value and the correction coefficient and the integration result determined in the current moment in the first preset time period.
In one embodiment, the determination module is to:
in response to the first temperature being less than a temperature threshold, determining whether to perform a predetermined operation according to a frost formation degree parameter determined based on the first temperature and the second temperature.
In one embodiment, the determination module is to:
in response to the first temperature being less than a temperature threshold after the air conditioner enters a heating mode for a predetermined period of time, determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature.
In one embodiment, the determination module is to:
and determining whether to execute a predetermined operation based on the frosting degree parameter and the difference value of the first temperature and the second temperature which is obtained currently.
In one embodiment, the determination module is to:
determining to enter a defrost mode in response to a first predetermined condition being met, wherein the first predetermined condition includes at least one of:
the frosting degree parameter is larger than a parameter threshold value;
the difference between the first temperature and the second temperature is less than a first predetermined value.
In one embodiment, the determination module is to:
after entering the defrosting mode, determining to enter the defrosting mode in response to a second predetermined condition being met, wherein the second predetermined condition comprises at least one of:
the first temperature is greater than a second predetermined value;
the air conditioner is operated in the defrosting mode for a time period longer than a second preset time period.
In one embodiment, the determination module is configured to: the second preset time length is determined according to a reference time length, wherein the reference time length is the time length between the moment when the air conditioner enters the heating mode and the moment when the air conditioner enters the defrosting mode.
According to a third aspect of the embodiments of the present disclosure, there is provided an electronic apparatus, including:
a processor;
a memory for storing the processor-executable instructions;
wherein the processor is configured to: when the executable instructions are executed, the method of any embodiment of the present disclosure is implemented.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer storage medium storing a computer-executable program which, when executed by a processor, implements the method of any of the embodiments of the present disclosure.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
in the embodiment of the disclosure, a first temperature of an outdoor unit heat exchanger coil of an air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located are obtained; determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. Here, the entering into the defrosting mode or exiting from the defrosting mode may be determined according to a frosting degree parameter determined based on the first temperature and the second temperature within the first predetermined period, and the predetermined operation may be adapted to the frosting degree parameter, so that compared with a mode of determining the entering into the defrosting mode or exiting from the defrosting mode based on only the temperature value of the air conditioner coil, the defrosting process may be accurately and reliably performed, and the heat exchange efficiency of the air conditioner may be improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flowchart illustrating a defrosting control method of an air conditioner according to an exemplary embodiment.
Fig. 2 is a flowchart illustrating a defrosting control method of an air conditioner according to an exemplary embodiment.
Fig. 3 is a flowchart illustrating a defrosting control method of an air conditioner according to an exemplary embodiment.
Fig. 4 is a flowchart illustrating a defrosting control method of an air conditioner according to an exemplary embodiment.
Fig. 5 is a flowchart illustrating a defrosting control method of an air conditioner according to an exemplary embodiment.
Fig. 6 is a block diagram illustrating a defrosting control apparatus of an air conditioner according to an exemplary embodiment.
FIG. 7 is a block diagram illustrating an electronic device in accordance with an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
In order to facilitate understanding of technical solutions of the embodiments of the present disclosure, a plurality of embodiments are listed in the embodiments of the present disclosure to clearly explain the technical solutions of the embodiments of the present disclosure. Of course, it can be understood by those skilled in the art that the embodiments provided in the present disclosure can be implemented alone, or in combination with other embodiments of the methods in the present disclosure, or in combination with some methods in other related technologies; the disclosed embodiments are not limited thereto.
For better understanding of the embodiments of the present disclosure, the following describes technical solutions in relevant application scenarios:
in one embodiment, for a household air conditioner, when frosting reaches a certain degree, the air conditioning equipment starts the four-way valve, changes the refrigerant flow path, and allows a high-temperature and high-pressure refrigerant to pass through the outdoor unit heat exchanger for defrosting, and the corresponding mode of the process may be a defrosting mode. And after the defrosting is determined to be finished, closing the four-way valve and continuing heating.
In one embodiment, whether the defrosting mode is entered or not and whether the defrosting mode is exited or not are related to temperature values collected by a coil temperature sensor of an outdoor heat exchanger of the air conditioner, and the defrosting mode can be entered to start defrosting when a preset temperature point is reached; alternatively, the defrosting mode may be exited when a predetermined temperature point is reached, and defrosting is ended.
In the related art, first, depending on the detection value of the sensor temperature, if there is a temperature deviation, early defrosting or incomplete defrosting is likely to occur, which affects the heating efficiency. Secondly, the positions of different heat exchangers or sensors correspond to different defrosting parameters, and the experience and a large number of tests of function designers are relied on. In the case of insufficient experience of designers or insufficient test, abnormal defrosting is easily caused.
As shown in fig. 1, the present embodiment provides a defrosting control method of an air conditioner, the method including:
step 11, acquiring a first temperature of a heat exchanger coil of an outdoor unit of an air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located;
step 12, determining whether to execute a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first preset time period; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode.
In the embodiment of the present disclosure, the heat exchanger of the air conditioner may be a heat exchanger of an outdoor unit of the air conditioner.
In an embodiment, the first temperature of the heat exchanger coil may be obtained by a temperature sensor, and it should be noted that the first temperature of the heat exchanger coil may be the temperature of the inner surface or the outer surface of the heat exchanger coil, which is acquired by the temperature sensor, or the temperature in the predetermined space, which is determined based on the inner surface or the outer surface of the heat exchanger coil, which is acquired by the temperature sensor, and is not limited herein.
In one embodiment, there may be a plurality of temperature sensors for acquiring the first temperature of the heat exchanger coil, and the plurality of temperature sensors may be respectively disposed at different positions of the heat exchanger coil. The first temperature of the heat exchanger coil of the outdoor unit of the air conditioner may be determined according to the temperatures collected by the plurality of temperature sensors, and the finally determined first temperature of the heat exchanger coil may be an average value of the temperatures collected by the plurality of temperature sensors.
In one embodiment, there may be a plurality of temperature sensors for obtaining the second temperature of the outdoor environment in which the heat exchanger coil is located, and the plurality of temperature sensors may be respectively disposed at different positions around the heat exchanger coil. The second temperature of the outdoor environment where the heat exchanger coil of the air conditioner is located may be determined according to the temperatures collected by the plurality of temperature sensors, and the finally determined second temperature of the outdoor environment where the heat exchanger coil is located may be an average value of the temperatures collected by the plurality of temperature sensors.
In one embodiment, the entering of the defrosting mode may be that the air conditioner controls to perform an operation for defrosting, and for example, after entering of the defrosting mode, the air conditioner may start the four-way valve, change the refrigerant flow path, and control the refrigerant with high temperature and high pressure to be defrosted through the heat exchanger. It should be noted that, after defrosting is completed, the defrosting mode may be exited, the four-way valve may be closed, and the heating mode may be entered. The heating mode may be a mode in which the air conditioner controls the indoor temperature to be increased.
In one embodiment, the frosting degree parameter is a parameter determined according to an integration result of a difference value of the first temperature and the second temperature within the first predetermined time period determined based on the current time.
For example, in the case of a liquid,
Figure BDA0003672483870000051
wherein, t is the time length from the air conditioner entering the heating mode to the current moment, and the unit can be min;
T outer tube (t) a first temperature of the outdoor unit heat exchanger coil at time t;
T out and (t) the second temperature of the outdoor environment where the outdoor unit heat exchanger coil is located at the time t.
In one embodiment, the frosting degree parameter is a parameter determined according to the sum of the difference value and the correction coefficient and the integration result in the first predetermined time period determined based on the current time.
For example,
Figure BDA0003672483870000052
wherein t is the time length from the air conditioner entering the heating mode to the current moment, and the unit can be min;
the T outer pipe (T) is the first temperature of the coil pipe of the outdoor unit heat exchanger at the time T;
tout (t) is a second temperature of the outdoor environment where the outdoor unit heat exchanger coil is located at time t;
and a (t) is a defrosting correction coefficient at the time t. In one embodiment, a (T) is 3+ (tonneau (T)/3).
In one embodiment, the air conditioner enters a heating mode; the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; determining whether to perform a predetermined operation according to a frost formation degree parameter determined based on the first temperature and the second temperature within a first predetermined period of time; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode.
In one embodiment, the air conditioner enters a heating mode; the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; in response to the first temperature being less than a temperature threshold, determining whether to perform a predetermined operation according to a frost formation parameter determined based on the first temperature and the second temperature within a first predetermined period of time; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. The temperature threshold may be determined according to a refrigerant type of the air conditioner. For example, the temperature threshold corresponding to the predetermined refrigerant type is 8 ℃.
Here, it should be noted that "greater than" in the present disclosure has the meaning of "greater than or equal to" in some scenarios; in some contexts, "less than" in this disclosure has the meaning of "less than or equal to".
In one embodiment, the air conditioner enters a heating mode; the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; in response to the first temperature being less than a temperature threshold after the air conditioner enters a heating mode for a predetermined period of time, determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period of time; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. It should be noted that the first predetermined time period may be a time period corresponding to a time period from the time when the air conditioner enters the heating mode for a predetermined time period to the current time.
In one embodiment, the air conditioner enters a heating mode; the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; determining whether to perform the predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period of time and a difference value between the first temperature and the second temperature which is currently acquired; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode.
In one embodiment, the air conditioner enters a heating mode; the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; determining whether to perform the predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period of time and a difference value between the first temperature and the second temperature which is currently acquired; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. Determining to enter a defrost mode in response to a first predetermined condition being met, wherein the first predetermined condition includes at least one of: the frosting degree parameter is larger than a parameter threshold value; the difference between the first temperature and the second temperature is less than a first predetermined value. Illustratively, the parameter threshold may be 400 ℃; the first predetermined value is-10 ℃.
In one embodiment, the air conditioner enters a heating mode; the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; determining whether to perform the predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period of time and a difference value between the first temperature and the second temperature which is currently acquired; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. Determining to exit the defrost mode in response to a second predetermined condition being met after entering the defrost mode, wherein the second predetermined condition includes at least one of: the first temperature is greater than a second predetermined value; the air conditioner is operated in the defrosting mode for a time period longer than a second preset time period. It should be noted that the second predetermined time period is determined according to a reference time period, where the reference time period is a time period between a time when the air conditioner enters the heating mode and a time when the air conditioner enters the defrosting mode.
In the embodiment of the disclosure, a first temperature of an outdoor unit heat exchanger coil of an air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located are obtained; determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. Here, the entering into the defrosting mode or exiting from the defrosting mode may be determined according to a frosting degree parameter determined based on the first temperature and the second temperature within the first predetermined period, and the predetermined operation may be adapted to the frosting degree parameter, so that compared with a mode of determining the entering into the defrosting mode or exiting from the defrosting mode based on only the temperature value of the air conditioner coil, the defrosting process may be accurately and reliably performed, and the heat exchange efficiency of the air conditioner may be improved.
It should be noted that, as can be understood by those skilled in the art, the methods provided in the embodiments of the present disclosure can be executed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
As shown in fig. 2, the present embodiment provides a defrosting control method of an air conditioner, the method including:
step 21, acquiring a first temperature of an outdoor unit heat exchanger coil of an air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located;
and step 22, responding to the first temperature being smaller than a temperature threshold value, determining whether to execute a preset operation according to a frosting degree parameter determined based on the first temperature and the second temperature in a first preset time period.
In one embodiment, the air conditioner enters a heating mode; the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; in response to the first temperature being less than a temperature threshold, determining whether to perform a predetermined operation according to a frost formation parameter determined based on the first temperature and the second temperature within a first predetermined period of time; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. The temperature threshold may be determined according to a refrigerant type of the air conditioner. For example, the temperature threshold corresponding to the predetermined refrigerant type is 8 ℃.
In one embodiment, the air conditioner enters a heating mode; the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; in response to the first temperature being less than a temperature threshold after the air conditioner enters a heating mode for a predetermined period of time, determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period of time; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. It should be noted that the first predetermined time period may be a time period corresponding to a time period from when the air conditioner enters the heating mode for a predetermined time period to a current time.
It should be noted that, as can be understood by those skilled in the art, the methods provided in the embodiments of the present disclosure can be executed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
As shown in fig. 3, the present embodiment provides a defrosting control method of an air conditioner, the method including:
step 31, acquiring a first temperature of a heat exchanger coil of an outdoor unit of an air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located;
step 32, determining to enter a defrosting mode in response to a first predetermined condition being met, wherein the first predetermined condition includes at least one of:
the frosting degree parameter is larger than the parameter threshold value;
the difference between the first temperature and the second temperature is less than a first predetermined value.
In one embodiment, the air conditioner enters a heating mode; the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; determining whether to perform the predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period of time and a difference value between the first temperature and the second temperature which is currently acquired; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. Determining to enter a defrost mode in response to a first predetermined condition being met, wherein the first predetermined condition includes at least one of: the frosting degree parameter is larger than a parameter threshold value; the difference between the first temperature and the second temperature is less than a first predetermined value.
It should be noted that, as can be understood by those skilled in the art, the method provided in the embodiment of the present disclosure may be executed alone, or may be executed together with some methods in the embodiment of the present disclosure or some methods in the related art.
As shown in fig. 4, the present embodiment provides a defrosting control method of an air conditioner, the method including:
step 41, acquiring a first temperature of a heat exchanger coil of an outdoor unit of an air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located;
and 42, after entering the defrosting mode, responding to a second preset condition being met, and determining to exit the defrosting mode, wherein the second preset condition comprises at least one of the following conditions:
the first temperature is greater than a second predetermined value;
the air conditioner is operated in the defrosting mode for a time period longer than a second preset time period.
In one embodiment, the air conditioner enters a heating mode; the method comprises the steps of obtaining a first temperature of an outdoor unit heat exchanger coil of an air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located; determining whether to perform the predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period of time and a difference value of the first temperature and the second temperature which is currently acquired; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. Determining to exit the defrost mode in response to a second predetermined condition being met after entering the defrost mode, wherein the second predetermined condition includes at least one of: the first temperature is greater than a second predetermined value; the air conditioner is operated in the defrosting mode for a time period longer than a second preset time period. It should be noted that the second predetermined time period is determined according to a reference time period, where the reference time period is a time period between a time when the air conditioner enters the heating mode and a time when the air conditioner enters the defrosting mode.
It should be noted that, as can be understood by those skilled in the art, the methods provided in the embodiments of the present disclosure can be executed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
For a better understanding of the embodiments of the present disclosure, the technical solutions of the present disclosure are further explained below by an exemplary embodiment.
Example 1:
as shown in fig. 5, the present embodiment provides a defrosting control method of an air conditioner, the method including:
and step 51, after the air conditioner is started and enters a heating mode for 10min, determining whether defrosting (or defrosting) judgment is executed according to a determination result of whether the following conditions are met, if yes, executing defrosting judgment, and if not, executing defrosting judgment in the heating operation. Wherein the conditions include: t < T _ defrosting judgment temperature; wherein T is the obtained temperature of a coil pipe of an outdoor unit heat exchanger of the air conditioner, and the unit is; the T _ defrosting determination temperature may be determined according to a refrigerant type. The T _ defrosting determination temperature corresponds to a temperature threshold in the present disclosure.
And step 52, starting from the 10 th min, calculating the accumulated frost degree h (t) of the frost layer at the time t, wherein the time t can be the current time.
The frosting degree parameter (i.e., the cumulative frosting degree h (t)) is a parameter determined from the sum of the difference and the correction coefficient as a result of integration within the first predetermined period determined based on the current time. The first predetermined period of time is: (t-10) min
For example,
Figure BDA0003672483870000081
wherein t is the time length from the air conditioner entering the heating mode to the current moment, and the unit can be min;
the T outer pipe (T) is the first temperature of the coil pipe of the outdoor unit heat exchanger at the time T;
tout (t) is a second temperature of the outdoor environment where the outdoor unit heat exchanger coil is located at time t;
and a (t) is a defrosting correction coefficient at the time t. In one embodiment, a (T) is 3+ (tonneau (T)/3).
Step 53, determining whether to execute a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first preset time period; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode. Determining to enter a defrost mode in response to a first predetermined condition being met, wherein the first predetermined condition includes at least one of:
condition 1: h (t) >400 ℃;
condition 2: t outer tube (T) -Tout (T) < -10 ℃.
Step 54, after entering the defrosting mode, determining to exit the defrosting mode in response to a second predetermined condition being met, where the second predetermined condition includes at least one of:
t outer tube (T) >4 ℃;
the time length of the air conditioner running in the defrosting mode is more than the shortest defrosting time tmin (corresponding to a second preset time length), wherein tmin t Defrosting cream /12，t Defrosting cream The (corresponding reference time length) is the time length between the moment when the air conditioner enters the heating mode and the moment when the air conditioner enters the defrosting mode, and the unit can be min.
It should be noted that, as can be understood by those skilled in the art, the methods provided in the embodiments of the present disclosure can be executed alone or together with some methods in the embodiments of the present disclosure or some methods in the related art.
As shown in fig. 6, the present embodiment provides a defrosting control apparatus of an air conditioner, the apparatus including:
the system comprises an acquisition module 61, a control module and a control module, wherein the acquisition module 61 is used for acquiring a first temperature of an outdoor unit heat exchanger coil of an air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located;
a determination module 62 for determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period of time; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode.
In one embodiment, the determination module 62 is further configured to: the frosting degree parameter is a parameter determined according to an integral result of the difference value of the first temperature and the second temperature in the first preset time period determined at the current moment.
In one embodiment, the determination module 62 is further configured to: the frosting degree parameter is a parameter determined according to the sum of the difference value and the correction coefficient and the integration result determined in the current moment in the first preset time period.
In one embodiment, the determination module 62 is configured to:
in response to the first temperature being less than a temperature threshold, determining whether to perform a predetermined operation according to a frost formation degree parameter determined based on the first temperature and the second temperature.
In one embodiment, the determination module 62 is configured to:
in response to the first temperature being less than a temperature threshold after the air conditioner enters a heating mode for a predetermined period of time, determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature.
In one embodiment, the determination module 62 is configured to:
and determining whether to execute a predetermined operation based on the frosting degree parameter and the difference value of the first temperature and the second temperature acquired currently.
In one embodiment, the determination module 62 is configured to:
determining to enter a defrost mode in response to a first predetermined condition being met, wherein the first predetermined condition includes at least one of:
the frosting degree parameter is larger than a parameter threshold value;
the difference between the first temperature and the second temperature is less than a first predetermined value.
In one embodiment, the determination module 62 is configured to:
after entering the defrosting mode, determining to enter the defrosting mode in response to a second predetermined condition being met, wherein the second predetermined condition comprises at least one of:
the first temperature is greater than a second predetermined value;
the air conditioner is operated in the defrosting mode for a time period longer than a second preset time period.
In one embodiment, the determination module 62 is configured to: the second preset time length is determined according to a reference time length, wherein the reference time length is the time length between the moment when the air conditioner enters the heating mode and the moment when the air conditioner enters the defrosting mode.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
An embodiment of the present disclosure further provides a communication device, including:
an antenna;
a memory;
and the processor is respectively connected with the antenna and the memory and used for controlling the antenna to transmit and receive wireless signals by executing the executable program stored in the memory, and can execute the steps of the wireless network access method provided by any of the foregoing embodiments.
The communication device provided in this embodiment may be the aforementioned terminal or base station. The terminal can be various human-borne terminals or vehicle-borne terminals. The base stations may be various types of base stations, such as 4G base stations or 5G base stations, and so on.
The antenna may be various types of antennas, for example, a mobile antenna such as a 3G antenna, a 4G antenna, or a 5G antenna; the antenna may further include: a WiFi antenna or a wireless charging antenna, etc.
The memory may include various types of storage media, which are non-transitory computer storage media capable of continuing to remember the information stored thereon after a communication device has been powered down.
The processor may be connected to the antenna and the memory via a bus or the like for reading an executable program stored on the memory, e.g. at least one of the methods shown in any of the embodiments of the present disclosure.
The embodiments of the present disclosure further provide a non-transitory computer-readable storage medium, which stores an executable program, where the executable program, when executed by a processor, implements the steps of the wireless network access method provided in any of the foregoing embodiments, for example, at least one of the methods shown in any of the embodiments of the present disclosure.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 7 is a block diagram illustrating an electronic device 600 according to an example embodiment. For example, the electronic device 600 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 7, electronic device 600 may include one or more of the following components: processing component 602, memory 604, power component 606, multimedia component 608, audio component 610, input/output (I/O) interface 612, sensor component 614, and communication component 616.
The processing component 602 generally controls overall operation of the electronic device 600, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 602 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 602 can include one or more modules that facilitate interaction between the processing component 602 and other components. For example, the processing component 602 can include a multimedia module to facilitate interaction between the multimedia component 608 and the processing component 602.
The memory 604 is configured to store various types of data to support operation at the device 600. Examples of such data include instructions for any application or method operating on the electronic device 600, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 604 may be implemented by any type or combination of volatile and non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
Power supply component 606 provides power to the various components of electronic device 600. The power components 606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 600.
The multimedia component 608 includes a screen that provides an output interface between the electronic device 600 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 608 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 600 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 610 is configured to output and/or input audio signals. For example, the audio component 610 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 600 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 604 or transmitted via the communication component 616. In some embodiments, audio component 610 further includes a speaker for outputting audio signals.
The I/O interface 612 provides an interface between the processing component 602 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 614 includes one or more sensors for providing status assessment of various aspects of the electronic device 600. For example, the sensor component 614 may detect an open/closed state of the device 600, the relative positioning of components, such as a display and keypad of the electronic device 600, the sensor component 614 may also detect a change in the position of the electronic device 600 or a component of the electronic device 600, the presence or absence of user contact with the electronic device 600, orientation or acceleration/deceleration of the electronic device 600, and a change in the temperature of the electronic device 600. The sensor assembly 614 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 614 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 616 is configured to facilitate communications between the electronic device 600 and other devices in a wired or wireless manner. The electronic device 600 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 616 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 616 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the electronic device 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 604 comprising instructions, executable by the processor 820 of the electronic device 600 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (12)

1. A defrosting control method of an air conditioner, characterized by comprising the following steps:
the method comprises the steps of obtaining a first temperature of a heat exchanger coil of an outdoor unit of the air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located;
determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature within a first predetermined period; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode.
2. The method according to claim 1, wherein the frosting degree parameter is a parameter determined according to an integration result of a difference value between the first temperature and the second temperature within the first predetermined period determined based on a current time.
3. The method according to claim 2, wherein the frost formation parameter is a parameter determined from an integration result of a sum of the difference and a correction coefficient within the first predetermined period determined based on a current time.
4. The method of claim 1, wherein determining whether to perform a predetermined operation according to a frost formation parameter determined based on the first temperature and the second temperature within a first predetermined period of time comprises:
in response to the first temperature being less than a temperature threshold, determining whether to perform a predetermined operation according to a frost formation parameter determined based on the first temperature and the second temperature within a first predetermined period.
5. The method of claim 4, wherein determining whether to perform a predetermined operation in accordance with a frost formation parameter determined based on the first temperature and the second temperature over a first predetermined period of time in response to the first temperature being less than a temperature threshold comprises:
in response to the first temperature being less than a temperature threshold after the air conditioner enters a heating mode for a predetermined period of time, determining whether to perform a predetermined operation according to a frosting degree parameter determined based on the first temperature and the second temperature.
6. The method of claim 1, wherein determining whether to perform a predetermined operation according to a frost formation parameter determined based on the first temperature and the second temperature within a first predetermined period of time comprises:
determining whether to perform the predetermined operation based on the frosting degree parameter and a difference value between the first temperature and the second temperature which are currently acquired.
7. The method of claim 1, wherein the determining whether to perform a predetermined operation based on the frost formation degree parameter and a difference between the first temperature and the second temperature currently obtained comprises:
determining to enter a defrost mode in response to a first predetermined condition being met, wherein the first predetermined condition includes at least one of:
the frosting degree parameter is larger than a parameter threshold value;
the difference between the first temperature and the second temperature is less than a first predetermined value.
8. The method of claim 7, further comprising:
determining to exit the defrost mode in response to a second predetermined condition being met after entering the defrost mode, wherein the second predetermined condition includes at least one of:
the first temperature is greater than a second predetermined value;
the air conditioner is operated in the defrosting mode for a time period longer than a second preset time period.
9. The method of claim 8, wherein the second predetermined period of time is determined according to a reference period of time, wherein the reference period of time is a period of time between a time when the air conditioner enters the heating mode and a time when the air conditioner enters the defrosting mode.
10. A defrosting control apparatus of an air conditioner, characterized by performing the control method of any one of claims 1 to 9, the apparatus comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring a first temperature of an outdoor unit heat exchanger coil of an air conditioner and a second temperature of an outdoor environment where the heat exchanger coil is located;
a determination module for determining whether to perform a predetermined operation according to a frost formation degree parameter determined based on the first temperature and the second temperature within a first predetermined period; wherein the predetermined operation comprises entering a defrost mode or exiting a defrost mode.
11. A terminal, characterized in that the terminal comprises: a processor and a memory for storing a computer service capable of running on the processor, wherein the processor is configured to implement the method of any one of claims 1 to 9 when running the computer service.
12. A storage medium having computer-executable instructions embodied therein, the computer-executable instructions being executable by a processor to implement the method of any one of claims 1 to 9.
CN202210612889.3A 2022-05-31 2022-05-31 Defrosting control method and device for air conditioner, terminal and storage medium Pending CN114909777A (en)

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