CN116294138A - Control method and device for defrosting of air conditioner, air conditioner and storage medium - Google Patents

Control method and device for defrosting of air conditioner, air conditioner and storage medium Download PDF

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Publication number
CN116294138A
CN116294138A CN202310072771.0A CN202310072771A CN116294138A CN 116294138 A CN116294138 A CN 116294138A CN 202310072771 A CN202310072771 A CN 202310072771A CN 116294138 A CN116294138 A CN 116294138A
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CN
China
Prior art keywords
air conditioner
heat exchanger
outdoor
temperature
outdoor heat
Prior art date
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Pending
Application number
CN202310072771.0A
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Chinese (zh)
Inventor
解晓涛
刘涛
高世勇
胡茗升
王卓
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202310072771.0A priority Critical patent/CN116294138A/en
Publication of CN116294138A publication Critical patent/CN116294138A/en
Pending legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits

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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)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application relates to the technical field of intelligent air conditioners and discloses a control method for defrosting of an air conditioner. The outdoor unit comprises an outdoor heat exchanger and a heating device, and the heating device is used for heating the outdoor heat exchanger. The method comprises the following steps: under the condition that the air conditioner operates in a heating mode, acquiring the temperature of an outdoor coil of the outdoor heat exchanger; controlling the heating device to operate under the condition that the temperature of the outdoor coil pipe is reduced to a temperature threshold value, and heating the outdoor heat exchanger; wherein the temperature threshold is greater than or equal to a frost point temperature. According to the method, under the condition that the temperature of the outdoor coil pipe of the outdoor heat exchanger is higher than the frost point temperature, namely before the outdoor heat exchanger frosts, the heating device is operated to heat the outdoor heat exchanger in advance, so that the temperature of the outdoor coil pipe can be maintained above the frost point temperature, and the outdoor heat exchanger can be prevented from frosting. The application also discloses a control device for defrosting the air conditioner and the air conditioner.

Description

Control method and device for defrosting of air conditioner, air conditioner and storage medium
Technical Field
The application relates to the technical field of intelligent air conditioners, and for example relates to a control method and device for defrosting an air conditioner, the air conditioner and a storage medium.
Background
At present, under the condition that the outdoor environment temperature is low in winter, in the heating operation process of the air conditioner, the outdoor heat exchanger of the air conditioner is easy to frost, so that the air conditioner needs to periodically perform defrosting operation. In the process of periodically defrosting operation of the air conditioner, the heating mode is frequently switched to the defrosting mode, so that the indoor heating effect is easy to be poor. Therefore, it is necessary to delay the frosting time of the outdoor heat exchanger to reduce the switching of the air conditioner from the heating mode to the defrosting mode, thereby improving the indoor heating effect.
In order to delay the frosting time of the outdoor heat exchanger, a control method for delaying the frosting of the outdoor heat exchanger is disclosed in the related art, which comprises the following steps: and integrating an electric heating device in the bottom area of the outdoor heat exchanger, and judging whether the frost layer of the outdoor heat exchanger enters a deterioration period according to the change trend of the temperature of the outdoor coil. And under the condition that the frost layer of the outdoor heat exchanger enters a deterioration period, starting the electric heating device to heat the outdoor heat exchanger so as to delay the frosting time in the frosting process of the outdoor heat exchanger.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
although the frosting time can be delayed in the frosting process of the outdoor heat exchanger, it is difficult to prevent frosting before the outdoor heat exchanger frosts.
It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a control method and device for defrosting an air conditioner, the air conditioner and a storage medium, and frosting can be prevented before an outdoor heat exchanger frosts.
In some embodiments, the air conditioner includes an outdoor unit; the outdoor unit comprises an outdoor heat exchanger and a heating device, and the heating device is used for heating the outdoor heat exchanger; wherein the method comprises the following steps:
under the condition that the air conditioner operates in a heating mode, acquiring the temperature of an outdoor coil of the outdoor heat exchanger;
controlling the heating device to operate under the condition that the temperature of the outdoor coil pipe is reduced to a temperature threshold value, and heating the outdoor heat exchanger;
wherein the temperature threshold is greater than or equal to a frost point temperature.
Optionally, the temperature threshold is determined according to a duration of a previous operation defrosting mode of the air conditioner.
Optionally, determining the temperature threshold according to a duration of a previous operation defrosting mode of the air conditioner includes: in the case of tc.ltoreq.a, t=t L The method comprises the steps of carrying out a first treatment on the surface of the At a<Where tc.ltoreq.b, T=T L +△T L1 The method comprises the steps of carrying out a first treatment on the surface of the At Tc>In case of b, t=t L +△T L2 The method comprises the steps of carrying out a first treatment on the surface of the Wherein Tc is the time length of the previous operation defrosting mode of the air conditioner, a is a first time length threshold value, b is a second time length threshold value, T is a temperature threshold value, T L Is the frost point temperature, deltaT L1 、△T L2 Is the set compensation temperature and is less than or equal to 1 ℃ delta T L1 <△T L2 ≤6℃。
Alternatively, a, b are determined from the outdoor ambient temperature.
Optionally, determining a, b according to the outdoor ambient temperature includes:
at T Outer 2 ＜Tao≤T Outer 3 A=a1, b=b1; at T Outer 1 ＜Tao≤T Outer 2 A=a2, b=b2; at tao.ltoreq.T Outer 1 In the case of (a) a=a3 and b=b3. Wherein Tao is outdoor ambient temperature, T Outer 1 For extremely cold temperature threshold, T Outer 2 For the cold temperature threshold, T Outer 3 For the cold temperature threshold value, a1 is not less than 2 minutes<a2<a3 is less than or equal to 6 minutes, and b1 is less than or equal to 6 minutes<b2<b3 is less than or equal to 15 minutes.
Optionally, controlling the operation of the heating device includes: the heating device is controlled to operate at half power.
Optionally, the method further comprises: in the case of the air conditioner operating in the defrost mode, the heating device is controlled to operate at full power.
Alternatively, in the case of the air conditioner operating in the defrost mode, T D ＝T cn +c; wherein T is D For the heating time of the heating device, T cn And c is a preset time length after the operation of the defrosting mode of the air conditioner is finished.
In some embodiments, the apparatus comprises: the air conditioner defrosting control method comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the control method for air conditioner defrosting when the program instructions are executed.
In some embodiments, the air conditioner includes: an outdoor unit, an indoor unit and the control device for defrosting the air conditioner. The outdoor unit comprises an outdoor heat exchanger and a heating device for heating the outdoor heat exchanger; the control device for defrosting the air conditioner is arranged on the indoor unit.
In some embodiments, the storage medium stores program instructions, wherein the program instructions, when executed, perform the aforementioned control method for defrosting an air conditioner.
The control method and device for defrosting of the air conditioner, the air conditioner and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:
when the temperature of the outdoor coil pipe of the outdoor heat exchanger is higher than the frost point temperature, namely before the outdoor heat exchanger frosts, the heating device is operated to heat the outdoor heat exchanger in advance, so that the temperature of the outdoor coil pipe can be maintained above the frost point temperature, and the outdoor heat exchanger can be prevented from frosting.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
FIG. 1 is a schematic view of an air conditioner;
fig. 2 is a schematic diagram of a control method for defrosting an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic view of another control method for defrosting an air conditioner provided in an embodiment of the present disclosure;
fig. 4 is a schematic view of another control method for defrosting an air conditioner provided in an embodiment of the present disclosure;
fig. 5 is a schematic view of a control apparatus for defrosting an air conditioner according to an embodiment of the present disclosure;
fig. 6 is a schematic view of an outdoor unit of an air conditioner according to an embodiment of the present disclosure;
fig. 7 is a schematic view of an indoor unit of an air conditioner according to an embodiment of the present disclosure.
Reference numerals:
1: an air conditioner; 2 a compressor; 3: an outdoor heat exchanger; 4: an outdoor fan; 5: a heating device; 6: a first temperature sensor; 7: a second temperature sensor; 8: a four-way valve; 9: a controller; 10: an indoor heat exchanger; 11: an indoor fan; 12: a throttle device;
61: an outdoor unit; 62: an indoor unit; 611: and a protective net.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.
As shown in fig. 1, the air conditioner 1 includes an indoor unit and an outdoor unit. The outdoor unit includes a compressor 2, an outdoor heat exchanger 3, an outdoor fan 4, a heating device 5, a first temperature sensor 6, a second temperature sensor 7, a four-way valve 8, and a throttle device 12. The indoor unit comprises a controller 9, an indoor heat exchanger 10 and an indoor fan 11.
The throttling device 12 is used for realizing a refrigerant pressure adjusting function in a heating mode or a defrosting mode of the air conditioner 1. When the air conditioner 1 operates in different modes, the flow direction of the refrigerant in the system pipeline can be changed through the four-way valve 8, so that the mutual conversion between heating and defrosting of the air conditioner 1 is realized.
When the air conditioner 1 is operated in the heating mode, the indoor fan 11 is operated to blow the air heated by the indoor heat exchanger 10 into the room.
Wherein the first temperature sensor 6 is used for detecting the outdoor ambient temperature and the second temperature sensor 7 is used for detecting the outdoor coil temperature of the outdoor heat exchanger 3.
Wherein the heating device 5 is used for heating the outdoor heat exchanger 3.
The controller 9 is connected to the compressor 2, the heating device 5, the first temperature sensor 6, the second temperature sensor 7, the indoor fan 11, and the throttle device 12, respectively. For obtaining the outdoor ambient temperature, the outdoor coil temperature and controlling the operation of the compressor 2, the heating device 5, the indoor fan 11 and the restriction device 12.
At present, under the condition that the outdoor environment temperature is low in winter, in the heating operation process of the air conditioner, the outdoor heat exchanger of the air conditioner is easy to frost, so that the air conditioner needs to periodically perform defrosting operation. The air conditioner frequently operates in a defrosting mode, resulting in poor indoor heating effect.
The related art discloses a control method for delaying frosting of an outdoor heat exchanger, which comprises the following steps: and integrating an electric heating device in the bottom area of the outdoor heat exchanger, and judging whether the frost layer of the outdoor heat exchanger enters a deterioration period according to the change trend of the temperature of the outdoor coil. Under the condition that the frost layer of the outdoor heat exchanger enters the deterioration period, the electric heating device is started to heat the outdoor heat exchanger, so that the frosting time is delayed in the frosting process of the outdoor heat exchanger, the condition that the air conditioner is switched from a heating mode to a defrosting mode is reduced, and the indoor heating effect is improved. Although the frosting time can be delayed in the frosting process of the outdoor heat exchanger, it is difficult to prevent frosting before the outdoor heat exchanger frosts.
In connection with the air conditioner shown in fig. 1, the embodiment of the disclosure provides a method, in which before the outdoor heat exchanger frosts, the heating device is operated to heat the outdoor heat exchanger in advance, so that the temperature of the outdoor coil pipe can be maintained above the frost point temperature, and the frosting of the outdoor heat exchanger is prevented.
As shown in fig. 2, an embodiment of the present disclosure provides a control method for defrosting an air conditioner, including:
s21, under the condition that the air conditioner operates in a heating mode, the controller acquires the temperature of the outdoor coil of the outdoor heat exchanger.
And S22, when the temperature of the outdoor coil pipe is reduced to the temperature threshold value, the controller controls the heating device to operate so as to heat the outdoor heat exchanger.
Wherein the temperature threshold is greater than or equal to the frost point temperature.
By adopting the control method for defrosting the air conditioner, when the temperature of the outdoor coil of the outdoor heat exchanger is higher than the frost point temperature, namely before the outdoor heat exchanger frosts, the heating device is operated to heat the outdoor heat exchanger in advance, so that the temperature of the outdoor coil can be maintained above the frost point temperature, and the outdoor heat exchanger can be prevented from frosting.
Optionally, the temperature threshold is determined based on a duration of a previous operation defrost mode of the air conditioner.
The time length of the previous operation defrosting mode of the air conditioner can accurately reflect the outdoor environment temperature. In this way, the temperature threshold value, which is determined according to the duration of the previous operation defrosting mode of the air conditioner, can be matched with the outdoor environment temperature. When the outdoor environment temperature is low, the heating device is controlled in advance to heat the outdoor heat exchanger, so that frosting of the outdoor heat exchanger can be further prevented.
Optionally, the controller determines the temperature threshold according to a duration of a previous operation defrosting mode of the air conditioner, including: in the case of tc.ltoreq.a, t=t L . At a<Where tc.ltoreq.b, T=T L +△T L1 . At Tc>In case of b, t=t L +△T L2 。
Wherein Tc is the time length of the previous operation defrosting mode of the air conditioner, a is a first time length threshold value, b is a second time length threshold value, T is a temperature threshold value, T L Is the frost point temperature, deltaT L1 、△T L2 For the set compensation temperature.
The longer the time period in which the air conditioner was previously operated in the defrost mode, the lower the outdoor ambient temperature is indicated. And in the case of a low outdoor ambient temperature, the outdoor coil temperature may not have fallen to the frost point temperature and frosting has already begun. In this way, when the temperature threshold is properly increased to be higher than the frost point temperature, the heating device can be controlled to heat the outdoor heat exchanger when the temperature of the outdoor coil pipe is reduced to the temperature threshold, namely before the outdoor heat exchanger is frosted. Thus, frosting of the outdoor heat exchanger can be further prevented. In addition, in the event that the temperature threshold is equal to the frost point temperature, the outdoor heat exchanger has frosted when the outdoor coil temperature falls to the temperature threshold. At the moment, the heating device is controlled to heat the outdoor heat exchanger, so that the frosting time can be delayed in the frosting process of the outdoor heat exchanger.
Alternatively, 1 ℃ is less than or equal to DeltaT L1 <△T L2 The temperature is less than or equal to 6 ℃. More specifically, deltaT L1 =2deg.C or 3deg.C, Δt L2 =4 ℃ or 5 ℃.
Alternatively, a, b are determined from the outdoor ambient temperature.
Optionally, the controller determines a, b according to the outdoor environment temperature, including:
at T Outer 2 ＜Tao≤T Outer 3 In the case of (a), a=a1, and b=b1. At T Outer 1 ＜Tao≤T Outer 2 In the case of (a), a=a2, and b=b2. At tao.ltoreq.T Outer 1 In the case of (a) a=a3 and b=b3.
Wherein, the liquid crystal display device comprises a liquid crystal display device,tao is the outdoor ambient temperature, T Outer 1 For extremely cold temperature threshold, T Outer 2 For the cold temperature threshold, T Outer 3 Is a cold temperature threshold.
Alternatively, -45 ℃ is less than T Outer 1 The temperature is less than or equal to minus 35 ℃. More specifically, T Outer 1 -43 ℃, -40 ℃ or-37 ℃.
Alternatively, -25 ℃ is less than T Outer 2 The temperature is less than or equal to-5 ℃. More specifically, T Outer 2 -23 ℃, -20 ℃, -18 ℃, -15 ℃, -12 ℃, -10 ℃ or-8 ℃.
Alternatively, 0 ℃ is less than T Outer 3 The temperature is less than or equal to 8 ℃. More specifically, T Outer 3 =1 ℃,3 ℃, 5 ℃, or 7 ℃.
Alternatively, 2 minutes.ltoreq.a1 < a2< a3.ltoreq.6 minutes. More specifically, a1=3 minutes, a2=4 minutes, a3=5 minutes.
Alternatively, 6 minutes.ltoreq.b1 < b2< b3.ltoreq.15 minutes. More specifically, b1=7, 8 or 9 minutes, b2=10, 11 or 12 minutes, b3=13 or 14 minutes.
Optionally, the controller controls the operation of the heating device, including: the heating device is controlled to operate at half power.
Thus, the heating device is controlled to operate at half power, and the waste of resources of the heating device can be reduced.
As shown in fig. 3, an embodiment of the present disclosure provides another control method for defrosting an air conditioner, including:
s31, when the air conditioner operates in a heating mode, the controller acquires the temperature of the outdoor coil of the outdoor heat exchanger.
And S32, when the temperature of the outdoor coil pipe is reduced to the temperature threshold value, the controller controls the heating device to operate so as to heat the outdoor heat exchanger.
S33, in the case of the air conditioner operating in the defrosting mode, the controller controls the heating device to operate at full power.
Wherein the temperature threshold is greater than or equal to the frost point temperature.
By adopting the control method for defrosting the air conditioner, provided by the embodiment of the disclosure, under the condition that the air conditioner operates in a defrosting mode, the heating device is controlled to operate at full power, so that the outdoor heat exchanger can be defrosted more efficiently. Thereby, the defrosting effect of the outdoor heat exchanger is improved.
Alternatively, in the case of the air conditioner operating in the defrost mode, T D ＝T cn +c; wherein T is D For the heating time of the heating device, T cn And c is a preset time length after the operation of the defrosting mode of the air conditioner is finished.
Thus, after the defrosting mode of the air conditioner is finished, the heating device is controlled to continue to operate for a preset period of time, and residual water vapor and water drops on the outdoor heat exchanger can be evaporated cleanly. Thereby, the secondary frosting of the outdoor heat exchanger is prevented.
Optionally, 30 s.ltoreq.c < 90s. More specifically, c=30 s, 60s, or 90s.
Therefore, after the defrosting mode of the air conditioner is finished, the duration of continuous operation of the heating device is controlled to be not too long, and the waste of resources of the heating device can be further reduced.
As shown in fig. 4, an embodiment of the present disclosure provides another control method for defrosting an air conditioner, including:
s41, in the case of the air conditioner operating in the defrosting mode, the controller controls the heating device to operate at full power.
S42, under the condition that the air conditioner operates in a heating mode, the controller acquires the temperature of the outdoor coil of the outdoor heat exchanger.
And S43, when the temperature of the outdoor coil pipe is reduced to the temperature threshold value, the controller controls the heating device to operate so as to heat the outdoor heat exchanger.
Wherein the temperature threshold is greater than or equal to the frost point temperature.
By adopting the control method for defrosting the air conditioner, provided by the embodiment of the disclosure, under the condition that the air conditioner operates in a defrosting mode, the heating device is controlled to operate at full power, so that the outdoor heat exchanger can be defrosted more efficiently. Thereby, the defrosting effect of the outdoor heat exchanger is improved.
As shown in connection with fig. 5, an embodiment of the present disclosure provides a control apparatus 500 for defrosting an air conditioner, including a processor (processor) 100 and a memory (memory) 101. Optionally, the apparatus may further comprise a communication interface (Communication Interface) 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via the bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the control method for air conditioner defrosting of the above-described embodiment.
Further, the logic instructions in the memory 101 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 101 is a computer readable storage medium that can be used to store a software program, a computer executable program, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, i.e., implements the control method for defrosting an air conditioner in the above-described embodiment.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for a function; the storage data area may store data created according to the use of the terminal device, etc. Further, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
As shown in fig. 6 and 7, an embodiment of the present disclosure provides an air conditioner, including: the outdoor unit 61, the indoor unit 62, and the control device 500 for defrosting an air conditioner described above.
Among them, the control device 500 for defrosting an air conditioner is installed at the indoor unit 62. The mounting relationship described herein is not limited to being disposed within the indoor unit 62, but includes mounting connections with other components of the indoor unit 62, including but not limited to physical connections, electrical connections, or signal transmission connections, etc. Those skilled in the art will appreciate that the control device 500 for defrosting an air conditioner may be adapted to the available indoor units 62 to achieve other possible embodiments.
Alternatively, the outdoor unit 61 includes the outdoor heat exchanger 3, the heating device 5 for heating the outdoor heat exchanger, and the protection net 611. The heating device 5 is mounted to the protection net 611.
Thus, the installation position of the heating device corresponds to the position of the outdoor heat exchanger, so that the heat generated by the heating device can cover the outdoor heat exchanger more uniformly. Therefore, the heat exchange efficiency of the outdoor heat exchanger can be improved.
Embodiments of the present disclosure provide a storage medium storing computer-executable instructions configured to perform the above-described control method for defrosting an air conditioner.
The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (12)

1. A control method for defrosting an air conditioner, the air conditioner including an outdoor unit; the outdoor unit comprises an outdoor heat exchanger and a heating device, and the heating device is used for heating the outdoor heat exchanger; characterized in that the method comprises:
under the condition that the air conditioner operates in a heating mode, acquiring the temperature of an outdoor coil of the outdoor heat exchanger;
controlling the heating device to operate under the condition that the temperature of the outdoor coil pipe is reduced to a temperature threshold value, and heating the outdoor heat exchanger;
wherein the temperature threshold is greater than or equal to a frost point temperature.
2. The method of claim 1, wherein the temperature threshold is determined based on a duration of a previous operation defrost mode of the air conditioner.
3. The method of claim 2, wherein determining the temperature threshold based on a duration of a previous operation of the air conditioner in the defrost mode comprises:
in the case of tc.ltoreq.a, t=t L ；
At a<Where tc.ltoreq.b, T=T L +△T L1 ；
At Tc>In case of b, t=t L +△T L2 ；
Wherein Tc is the time length of the previous operation defrosting mode of the air conditioner, a is a first time length threshold value, b is a second time length threshold value, T is a temperature threshold value, T L Is the frost point temperature, deltaT L1 、△T L2 Is the set compensation temperature and delta T L1 <△T L2 。
4. A method according to claim 3, wherein a, b are determined from the outdoor ambient temperature.
5. The method of claim 4, wherein determining a, b based on outdoor ambient temperature comprises:
at T Outer 2 ＜Tao≤T Outer 3 A=a1, b=b1;
at T Outer 1 ＜Tao≤T Outer 2 A=a2, b=b2;
at tao.ltoreq.T Outer 1 A=a3, b=b3;
wherein Tao is outdoor ambient temperature, T Outer 1 For extremely cold temperature threshold, T Outer 2 For the cold temperature threshold, T Outer 3 For the cold temperature threshold, a1<a2<a3，b1<b2<b3。
6. The method of claim 1, wherein controlling operation of the heating device comprises:
the heating device is controlled to operate at half power.
7. The method according to any one of claims 1 to 6, further comprising:
in the case of the air conditioner operating in the defrost mode, the heating device is controlled to operate at full power.
8. The method of claim 7, wherein T is in the case of an air conditioner operating in a defrost mode D ＝T cn +c；
Wherein T is D For the heating time of the heating device, T cn And c is a preset time length after the operation of the defrosting mode of the air conditioner is finished.
9. A control apparatus for defrosting an air conditioner comprising a processor and a memory storing program instructions, wherein the processor is configured to execute the control method for defrosting an air conditioner according to any one of claims 1 to 8 when the program instructions are executed.
10. An air conditioner, comprising:
the outdoor unit comprises an outdoor heat exchanger and a heating device for heating the outdoor heat exchanger;
an indoor unit; and, a step of, in the first embodiment,
the control device for defrosting of an air conditioner as claimed in claim 9, installed to the indoor unit.
11. The air conditioner as set forth in claim 10, wherein the outdoor unit further includes:
and a protection net to which the heating device is mounted.
12. A storage medium storing program instructions which, when executed, perform the control method for defrosting an air conditioner according to any one of claims 1 to 8.
CN202310072771.0A 2023-01-13 2023-01-13 Control method and device for defrosting of air conditioner, air conditioner and storage medium Pending CN116294138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310072771.0A CN116294138A (en) 2023-01-13 2023-01-13 Control method and device for defrosting of air conditioner, air conditioner and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310072771.0A CN116294138A (en) 2023-01-13 2023-01-13 Control method and device for defrosting of air conditioner, air conditioner and storage medium

Publications (1)

Publication Number Publication Date
CN116294138A true CN116294138A (en) 2023-06-23

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Country Status (1)

Country Link
CN (1) CN116294138A (en)

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