CN114963473B - Control method of air conditioner and air conditioner - Google Patents
Control method of air conditioner and air conditioner Download PDFInfo
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- CN114963473B CN114963473B CN202210398150.7A CN202210398150A CN114963473B CN 114963473 B CN114963473 B CN 114963473B CN 202210398150 A CN202210398150 A CN 202210398150A CN 114963473 B CN114963473 B CN 114963473B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
- F24F11/67—Switching between heating and cooling modes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
本发明实施例提供了一种空调器的控制方法和空调器。该空调器的控制方法包括：空调器制热开机；获取压缩机开启时长；根据所述压缩机开启时长与时长阈值的大小关系确定压缩机运行频率上限值。本发明解决了空调器在高温工况下制热运行时，压缩机的运行频率控制不合理，无法兼顾制热运行可靠性和制热效果的技术问题。
Embodiments of the present invention provide a control method for an air conditioner and an air conditioner. The control method of the air conditioner includes: turning on the air conditioner for heating; obtaining the compressor on time; and determining the upper limit of the compressor operating frequency based on the relationship between the compressor on time and the duration threshold. The invention solves the technical problem that when the air conditioner operates under high-temperature heating conditions, the operating frequency of the compressor is unreasonably controlled and cannot take into account both the reliability of the heating operation and the heating effect.
Description
Technical Field
The present application relates to the field of air conditioner control technologies, and in particular, to a control method of an air conditioner and an air conditioner.
Background
With the development of technology and the increasing level of living of people, air conditioners become an indispensable home appliance in the life of people. With the gradual maturity of the technology in the household appliances and the gradual and competitive trend, the quality requirements of consumers on the air conditioner are also higher.
In the related art, when an air conditioner heats and operates under a high-temperature working condition, the operation frequency of a compressor is unreasonable to control, and the reliability and the heating effect of the heating operation cannot be considered.
Disclosure of Invention
In order to solve the problems that the operation frequency of a compressor is unreasonable to control when the air conditioner is operated under heating under a high-temperature working condition, and the reliability and the heating effect of the heating operation cannot be considered, the application provides a control method of the air conditioner, which comprises the following steps: heating and starting up the air conditioner; acquiring the starting time of a compressor; and determining an upper limit value of the running frequency of the compressor according to the magnitude relation between the starting time length of the compressor and the time length threshold value.
The technical effect achieved after the technical scheme is adopted is as follows: after the air conditioner is heated and started, the current heating operation stage of the air conditioner can be accurately judged according to the relation between the starting time length of the compressor and the time length threshold value, so that the corresponding upper limit value of the operation frequency of the compressor can be set according to the current heating operation stage of the air conditioner, the operation frequency of the compressor is reasonably controlled, and the contradiction between the reliability of heating operation and the heating effect of the air conditioner is further solved.
In this embodiment, the determining the upper limit value of the compressor operating frequency according to the magnitude relation between the compressor opening time length and the time length threshold value includes: determining an upper limit value of the compressor operating frequency according to the outdoor environment temperature under the condition that the compressor starting time is smaller than the time threshold value; and setting the upper limit value of the running frequency of the compressor as a first upper limit value of the frequency under the condition that the starting time length of the compressor is larger than or equal to the time length threshold value.
The technical effect achieved after the technical scheme is adopted is as follows: if the starting time of the compressor is less than the time threshold, the compressor of the air conditioner is indicated to be just started for heating, at the moment, the high-pressure of the system is instantaneously increased, the temperature of the coil pipe of the indoor heat exchanger is gradually increased, that is, the air conditioner is in a starting unsteady state currently, so the running frequency of the compressor is limited by determining the running frequency upper limit value of the compressor through the outdoor environment temperature, and the problem that the temperature of the coil pipe of the indoor evaporator cannot be protected for reducing the frequency in time is avoided; if the opening time of the compressor is greater than or equal to the time threshold, the air conditioner is indicated to be in a heating running state for a period of time, that is, the air conditioner is in a heating stable running state at present, if the control method for limiting the running frequency of the compressor by adopting the outdoor environment temperature is continuously adopted, the problem that the indoor heating requirement cannot be met even if the running frequency of the compressor is opened to the highest running frequency allowed by the compressor can occur. In order to ensure the normal operation heating process of the air conditioner, the air conditioner can continuously provide heat for the indoor, so that when the air conditioner is in a heating stable operation state, a control method for limiting the operation frequency of the compressor by using the outdoor environment temperature is not adopted any more.
In this embodiment, the upper limit value of the compressor operating frequency is inversely related to the outdoor ambient temperature.
The technical effect achieved after the technical scheme is adopted is as follows: it can be understood that when the air conditioner heats and operates under the high-temperature working condition, the higher the outdoor environment temperature is, the easier the heating and operating reliability of the air conditioner is affected, so that the upper limit value of the operating frequency of the compressor is inversely related to the outdoor environment temperature, and the heating and operating reliability of the air conditioner is ensured. When the outdoor environment temperature is higher, the operation frequency of the compressor can be reduced by setting the lower upper limit value of the operation frequency of the compressor, so that the problem that the heating operation reliability of the air conditioner is affected due to the fact that the air conditioner operates under too high pressure for a long time is avoided.
In this embodiment, the determining the upper limit value of the operating frequency of the compressor according to the outdoor environment temperature includes: if T Outer ring ＜T 11 Setting the upper limit value of the operation frequency of the compressor as F 0 The method comprises the steps of carrying out a first treatment on the surface of the If T 11 ≤T Outer ring ＜T 12 Setting the upper limit value of the operation frequency of the compressor as F 1 The method comprises the steps of carrying out a first treatment on the surface of the If T 12 ≤T Outer ring ＜T 13 Setting the upper limit value of the operation frequency of the compressor as F 2 The method comprises the steps of carrying out a first treatment on the surface of the If T 13 ≤T Outer ring ＜T 14 Setting the upper limit value of the operation frequency of the compressor as F 3 The method comprises the steps of carrying out a first treatment on the surface of the If T 14 ≤T Outer ring Setting the upper limit value of the operation frequency of the compressor as F 4 The method comprises the steps of carrying out a first treatment on the surface of the Wherein T is Outer ring Is the outdoor ambient temperature; t (T) 11 Is a first outer loop temperature threshold; t (T) 12 Is a second outer loop temperature threshold; t (T) 13 Is a third outer loop temperature threshold; t (T) 14 Is a fourth outer loop temperature threshold; f (F) 0 Is a first frequency upper limit value; f (F) 1 Is a second frequency upper limit; f (F) 2 Is a third frequency upper limit value; f (F) 3 A fourth frequency upper limit value;F 4 is a fifth frequency upper limit value; t (T) 11 ＜T 12 ＜T 13 ＜T 14 ；F 0 ＞F 1 ＞F 2 ＞F 3 ＞F 4 。
The technical effect achieved after the technical scheme is adopted is as follows: through setting up a plurality of outer loop temperature threshold values, divide into a plurality of outdoor ambient temperature intervals with outdoor ambient temperature to set up corresponding compressor operating frequency upper limit value according to outdoor ambient temperature interval, thereby can realize the accurate control of compressor operating frequency, make the protection of air conditioner heating operation reliability more timely, the protection effect is better.
In this embodiment, the control method of the air conditioner further includes: acquiring the temperature of an indoor coil; controlling the running state of the compressor according to the temperature of the indoor coil; wherein, the operation state of the compressor includes: the compressor is stopped and/or the compressor operating frequency is reduced and/or the compressor frequency is inhibited and/or the conventional control of the compressor operating frequency is resumed.
The technical effect achieved after the technical scheme is adopted is as follows: it can be understood that when the air conditioner is stably operated in heating, the system high pressure of the air conditioner can be estimated according to the temperature of the indoor coil, so that the operation state of the air conditioner can be timely adjusted according to the temperature of the indoor coil, and the heating effect of the air conditioner is improved on the basis of ensuring the reliability of heating operation.
In this embodiment, said controlling the compressor operating conditions based on said indoor coil temperature comprises: if T 21 ≤T Inner disc Controlling the compressor to stop running; if T 22 ≤T Inner disc ＜T 21 The compressor operating frequency is reduced; if T 23 ≤T Inner disc ＜T 22 The compressor is forbidden to raise the frequency; wherein T is 21 A first inner disk temperature threshold; t (T) 22 A second inner disk temperature threshold; t (T) 23 A third inner disk temperature threshold; t (T) 23 ＜T 22 ＜T 21 。
The technical effect achieved after the technical scheme is adopted is as follows: if T 21 ≤T Inner disc The temperature of the indoor coil pipe is high, namely the high-pressure of the system is high, which exceeds the bearable range of the air conditioner, so that the compressor is controlled to stop running; if T 22 ≤T Inner disc ＜T 21 The temperature of the current indoor coil pipe is higher, namely the high-pressure of the system is higher, but still is in the bearable range of the air conditioner, so the high-pressure of the system is reduced by reducing the operation frequency of the compressor, and the reliability of heating operation of the air conditioner is ensured; if T 23 ≤T Inner disc ＜T 22 The current indoor coil temperature, namely the system high pressure is slightly higher, so that the compressor is forbidden to raise the frequency.
In this embodiment, the controlling the compressor operating state according to the indoor coil temperature further includes: if T Inner disc ＜T 23 The normal control of the compressor operating frequency is resumed.
The technical effect achieved after the technical scheme is adopted is as follows: if T Inner disc ＜T 23 It is indicated that the current indoor coil temperature, i.e., the system high pressure is normal, does not require a reduction in high pressure by reducing the compressor operating frequency, and therefore resumes conventional control of the compressor operating frequency.
In the present embodiment, the compressor operating frequency cannot exceed the compressor operating frequency upper limit value in the case of restoring the conventional control of the compressor operating frequency.
The technical effect achieved after the technical scheme is adopted is as follows: it can be understood that even if the conventional control of the compressor operation frequency is restored, on the basis of ensuring the heating operation reliability of the air conditioner, the compressor operation frequency is properly increased according to the indoor heating demand, but the heating efficiency cannot be improved uniformly, but the heating operation reliability of the air conditioner is ignored.
The embodiment of the application provides an air conditioner, which comprises: the control module is used for controlling the heating start of the air conditioner; the acquisition module is used for acquiring the starting time of the compressor; and the determining module is used for determining the upper limit value of the running frequency of the compressor according to the magnitude relation between the starting time length of the compressor and the time length threshold value.
The embodiment of the application provides an air conditioner, which comprises: a computer-readable storage medium storing a computer program and a packaged IC, the computer program, when read and run by the packaged IC, implementing the control method of an air conditioner as described in any one of the previous embodiments.
In summary, the foregoing embodiments of the present application may have one or more of the following advantages or benefits:
(1) After the air conditioner is heated and started, the current heating operation stage of the air conditioner can be accurately judged according to the relation between the starting time length of the compressor and the time length threshold value, so that the corresponding upper limit value of the operation frequency of the compressor can be set according to the current heating operation stage of the air conditioner, the operation frequency of the compressor is reasonably controlled, and the contradiction between the reliability of heating operation and the heating effect of the air conditioner is further solved.
(2) If the starting time of the compressor is less than the time threshold, the compressor of the air conditioner is indicated to be just started for heating, at the moment, the high-pressure of the system is instantaneously increased, the temperature of the coil pipe of the indoor heat exchanger is gradually increased, that is, the air conditioner is in a starting unsteady state currently, so the running frequency of the compressor is limited by determining the running frequency upper limit value of the compressor through the outdoor environment temperature, and the problem that the temperature of the coil pipe of the indoor evaporator cannot be protected for reducing the frequency in time is avoided; if the opening time of the compressor is greater than or equal to the time threshold, the air conditioner is indicated to be in a heating running state for a period of time, that is, the air conditioner is in a heating stable running state at present, if the control method for limiting the running frequency of the compressor by adopting the outdoor environment temperature is continuously adopted, the problem that the indoor heating requirement cannot be met even if the running frequency of the compressor is opened to the highest running frequency allowed by the compressor can occur. In order to ensure the normal operation heating process of the air conditioner, the air conditioner can continuously provide heat for the indoor, so that when the air conditioner is in a heating stable operation state, a control method for limiting the operation frequency of the compressor by using the outdoor environment temperature is not adopted any more.
(3) The limitation condition that the outdoor environment temperature is used for limiting the upper limit value of the operating frequency of the compressor is improved, the limitation condition is only effective in a period of time after the compressor is started, once the heating operation is stable, the outdoor environment temperature is not used for limiting the upper limit value of the operating frequency of the compressor, the frequency is controlled only according to the indoor coil temperature, and the influence on the heating effect due to the fact that the frequency is too low is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart illustrating a control method of an air conditioner according to a first embodiment of the present application.
Fig. 2 is a schematic flow chart of a control method of the air conditioner in fig. 1.
FIG. 3 is a schematic illustration of a specific flow chart for controlling the operation of the compressor according to the indoor coil temperature.
Fig. 4 is a schematic block diagram of an air conditioner according to a second embodiment of the present application.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
[ first embodiment ]
Referring to fig. 1, a flow chart of a control method of an air conditioner according to a first embodiment of the present application is shown. The control method of the air conditioner comprises the following steps: heating and starting up the air conditioner; acquiring the starting time of a compressor; and determining an upper limit value of the running frequency of the compressor according to the magnitude relation between the starting time length of the compressor and the time length threshold value.
It can be understood that after the air conditioner is heated and started, the current heating operation stage of the air conditioner can be accurately judged according to the relation between the opening time length of the compressor and the time length threshold value, so that the corresponding upper limit value of the operation frequency of the compressor can be set according to the current heating operation stage of the air conditioner, the operation frequency of the compressor is reasonably controlled, and the contradiction between the reliability of the heating operation and the heating effect of the air conditioner is further solved.
Further, the determining the upper limit value of the compressor operating frequency according to the magnitude relation between the starting time length of the compressor and the time length threshold value comprises: determining an upper limit value of the compressor operating frequency according to the outdoor environment temperature under the condition that the compressor starting time is smaller than the time threshold value; and setting the upper limit value of the running frequency of the compressor as a first upper limit value of the frequency under the condition that the starting time length of the compressor is larger than or equal to the time length threshold value.
In a specific embodiment, if the starting time of the compressor is less than the time threshold, it indicates that the compressor of the air conditioner is just started to heat, and at this time, the system high pressure is instantaneously raised, and the temperature of the indoor heat exchanger coil is gradually raised, that is, the air conditioner is in a starting unsteady state currently, so that the running frequency of the compressor is limited by determining the running frequency upper limit value of the compressor through the outdoor environment temperature, so as to avoid the problem that the temperature of the indoor evaporator coil cannot be protected for reducing the frequency in time; if the opening time of the compressor is greater than or equal to the time threshold, the air conditioner is indicated to be in a heating running state for a period of time, that is, the air conditioner is in a heating stable running state at present, if the control method for limiting the running frequency of the compressor by adopting the outdoor environment temperature is continuously adopted, the problem that the indoor heating requirement cannot be met even if the running frequency of the compressor is opened to the highest running frequency allowed by the compressor can occur. In order to ensure the normal operation heating process of the air conditioner, the air conditioner can continuously provide heat for the indoor, so that when the air conditioner is in a heating stable operation state, a control method for limiting the operation frequency of the compressor by using the outdoor environment temperature is not adopted any more.
Further, the upper limit value of the compressor operating frequency is inversely related to the outdoor ambient temperature.
It can be understood that when the air conditioner heats and operates under the high-temperature working condition, the higher the outdoor environment temperature is, the easier the heating and operating reliability of the air conditioner is affected, so that the upper limit value of the operating frequency of the compressor is inversely related to the outdoor environment temperature, and the heating and operating reliability of the air conditioner is ensured. When the outdoor environment temperature is higher, the operation frequency of the compressor can be reduced by setting the lower upper limit value of the operation frequency of the compressor, so that the problem that the heating operation reliability of the air conditioner is affected due to the fact that the air conditioner operates under too high pressure for a long time is avoided.
Further, referring to fig. 2, the determining the upper limit value of the operating frequency of the compressor according to the outdoor environment temperature includes: if T Outer ring ＜T 11 Setting the upper limit value of the operation frequency of the compressor as F 0 The method comprises the steps of carrying out a first treatment on the surface of the If T 11 ≤T Outer ring ＜T 12 Setting the upper limit value of the operation frequency of the compressor as F 1 The method comprises the steps of carrying out a first treatment on the surface of the If T 12 ≤T Outer ring ＜T 13 Setting the upper limit value of the operation frequency of the compressor as F 2 The method comprises the steps of carrying out a first treatment on the surface of the If T 13 ≤T Outer ring ＜T 14 Setting the upper limit value of the operation frequency of the compressor as F 3 The method comprises the steps of carrying out a first treatment on the surface of the If T 14 ≤T Outer ring Setting the upper limit value of the operation frequency of the compressor as F 4 The method comprises the steps of carrying out a first treatment on the surface of the Wherein T is Outer ring Is the outdoor ambient temperature; t (T) 11 Is a first outer loop temperature threshold; t (T) 12 Is a second outer loop temperature threshold; t (T) 13 Is a third outer loop temperature threshold; t (T) 14 Is a fourth outer loop temperature threshold; f (F) 0 Is a first frequency upper limit value; f (F) 1 Is a second frequency upper limit; f (F) 2 Is a third frequency upper limit value; f (F) 3 A fourth frequency upper limit value; f (F) 4 Is a fifth frequency upper limit value; t (T) 11 ＜T 12 ＜T 13 ＜T 14 ；F 0 ＞F 1 ＞F 2 ＞F 3 ＞F 4 。
It can be understood that the outdoor environment temperature is divided into a plurality of outdoor environment temperature intervals by setting a plurality of outer ring temperature threshold outer ring temperature thresholds, and the corresponding upper limit value of the operation frequency of the compressor is set according to the outdoor environment temperature intervals, so that the accurate control of the operation frequency of the compressor can be realized, the heating operation reliability of the air conditioner is protected more timely, and the protection effect is better.
Further, referring to fig. 3, the control method of the air conditioner further includes: acquiring the temperature of an indoor coil; controlling the running state of the compressor according to the temperature of the indoor coil; wherein, the operation state of the compressor includes: the compressor is stopped and/or the compressor operating frequency is reduced and/or the compressor frequency is inhibited and/or the conventional control of the compressor operating frequency is resumed.
It can be understood that when the air conditioner is stably operated in heating, the system high pressure of the air conditioner can be estimated according to the temperature of the indoor coil, so that the operation state of the air conditioner can be timely adjusted according to the temperature of the indoor coil, and the heating effect of the air conditioner is improved on the basis of ensuring the reliability of heating operation.
Further, the controlling the compressor operation state according to the indoor coil temperature includes: if T 21 ≤T Inner disc Controlling the compressor to stop running; if T 22 ≤T Inner disc ＜T 21 The compressor operating frequency is reduced; if T 23 ≤T Inner disc ＜T 22 The compressor is forbidden to raise the frequency; wherein T is 21 A first inner disk temperature threshold; t (T) 22 A second inner disk temperature threshold; t (T) 23 A third inner disk temperature threshold; t (T) 23 ＜T 22 ＜T 21 。
In one embodiment, if T 21 ≤T Inner disc The temperature of the indoor coil pipe is high, namely the high-pressure of the system is high, which exceeds the bearable range of the air conditioner, so that the compressor is controlled to stop running; if T 22 ≤T Inner disc ＜T 21 It is shown that the current indoor coil temperature is relatively high, i.e. the system high pressure is relatively high, but still within the range that the air conditioner can withstand, so by reducing the compressor operationThe high pressure of the system is reduced in a frequency mode, so that the reliability of heating operation of the air conditioner is ensured; if T 23 ≤T Inner disc ＜T 22 The current indoor coil temperature, namely the system high pressure is slightly higher, so that the compressor is forbidden to raise the frequency. For example, the rate of decrease in compressor operating frequency is AHz/Bs.
Further, the controlling the operation state of the compressor according to the indoor coil temperature further comprises: if T Inner disc ＜T 23 The normal control of the compressor operating frequency is resumed.
In one embodiment, if T Inner disc ＜T 23 It is indicated that the current indoor coil temperature, i.e., the system high pressure is normal, does not require a reduction in high pressure by reducing the compressor operating frequency, and therefore resumes conventional control of the compressor operating frequency.
Further, in the case of restoring the conventional control of the compressor operating frequency, the compressor operating frequency cannot exceed the compressor operating frequency upper limit value.
It can be understood that even if the conventional control of the compressor operation frequency is restored, on the basis of ensuring the heating operation reliability of the air conditioner, the compressor operation frequency is properly increased according to the indoor heating demand, but the heating efficiency cannot be improved uniformly, but the heating operation reliability of the air conditioner is ignored.
[ second embodiment ]
A second embodiment of the present application provides an air conditioner, and in combination with fig. 4, the air conditioner 200 includes, for example: control module 210, acquisition module 220, and determination module 230. The control module 210 is used for controlling the air conditioner to heat and start; the obtaining module 220 is configured to obtain a compressor on duration; the determining module 230 is configured to determine an upper limit value of the compressor operating frequency according to the magnitude relation between the duration of the compressor on and the duration threshold.
In a specific embodiment, the control module 210, the obtaining module 220 and the determining module 230 cooperate with each other to implement the control method of the air conditioner provided in the first embodiment, and achieve the same technical effects, so that repetition is avoided and no further description is given here.
[ third embodiment ]
A third embodiment of the present application provides an air conditioner. The air conditioner includes, for example: the air conditioner can realize the control method of the air conditioner provided by the first embodiment of the application and achieve the same technical effects when the computer program is read and run by the packaging IC, and the repetition is avoided, and the description is omitted here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (7)
1. A control method of an air conditioner, comprising:
heating and starting up the air conditioner;
acquiring the starting time of a compressor;
determining an upper limit value of the running frequency of the compressor according to the magnitude relation between the starting time length of the compressor and the time length threshold value;
the determining the upper limit value of the compressor operating frequency according to the magnitude relation between the starting time length of the compressor and the time length threshold value comprises the following steps:
determining an upper limit value of the compressor operating frequency according to the outdoor environment temperature under the condition that the compressor starting time is smaller than the time threshold value;
setting the upper limit value of the running frequency of the compressor as a first upper limit value of the frequency under the condition that the starting time length of the compressor is larger than or equal to the time length threshold value;
the control method of the air conditioner further comprises the following steps:
acquiring the temperature of an indoor coil;
controlling the running state of the compressor according to the temperature of the indoor coil;
wherein, the operation state of the compressor includes: the compressor is stopped and/or the compressor operating frequency is reduced and/or the compressor frequency is inhibited from increasing and/or the compressor operating frequency is restored;
the controlling the operation state of the compressor according to the indoor coil temperature comprises the following steps:
if T 21 ≤T Inner disc Controlling the compressor to stop running;
if T 22 ≤T Inner disc ＜T 21 The compressor operating frequency is reduced;
if T 23 ≤T Inner disc ＜T 22 The compressor is forbidden to raise the frequency;
wherein T is 21 A first inner disk temperature threshold; t (T) 22 A second inner disk temperature threshold; t (T) 23 A third inner disk temperature threshold; t (T) 23 ＜T 22 ＜T 21 。
2. The method for controlling an air conditioner according to claim 1, wherein,
the upper limit value of the compressor operating frequency is inversely related to the outdoor ambient temperature.
3. The control method of an air conditioner according to claim 2, wherein the determining the compressor operation frequency upper limit value according to the outdoor environment temperature comprises:
if T Outer ring ＜T 11 Setting the upper limit value of the operation frequency of the compressor as F 0 ；
If T 11 ≤T Outer ring ＜T 12 Setting the upper limit value of the operation frequency of the compressor as F 1 ；
If T 12 ≤T Outer ring ＜T 13 Setting the upper limit value of the operation frequency of the compressor as F 2 ；
If T 13 ≤T Outer ring ＜T 14 Setting the upper limit value of the operation frequency of the compressor as F 3 ；
If T 14 ≤T Outer ring Setting the upper limit value of the operation frequency of the compressor as F 4 ；
Wherein T is Outer ring Is the outdoor ambient temperature; t (T) 11 Is a first outer loop temperature threshold; t (T) 12 Is a second outer loop temperature threshold; t (T) 13 Is a third outer loop temperature threshold; t (T) 14 Is a fourth outer loop temperature threshold; f (F) 0 Is a first frequency upper limit value; f (F) 1 Is a second frequency upper limit; f (F) 2 Is a third frequency upper limit value; f (F) 3 A fourth frequency upper limit value; f (F) 4 Is a fifth frequency upper limit value; t (T) 11 ＜T 12 ＜T 13 ＜T 14 ；F 0 ＞F 1 ＞F 2 ＞F 3 ＞F 4 。
4. The method of controlling an air conditioner according to claim 1, wherein the controlling an operation state of a compressor according to the indoor coil temperature further comprises:
if T Inner disc ＜T 23 The normal control of the compressor operating frequency is resumed.
5. The method for controlling an air conditioner according to claim 4, wherein,
in the case of restoring the conventional control of the compressor operating frequency, the compressor operating frequency cannot exceed the compressor operating frequency upper limit value.
6. An air conditioner, characterized in that the air conditioner implements the control method of the air conditioner according to any one of claims 1 to 5, the air conditioner comprising:
the control module is used for controlling the heating start of the air conditioner;
the acquisition module is used for acquiring the starting time of the compressor;
and the determining module is used for determining the upper limit value of the running frequency of the compressor according to the magnitude relation between the starting time length of the compressor and the time length threshold value.
7. An air conditioner, characterized in that the air conditioner comprises: a computer-readable storage medium storing a computer program and a packaged IC, the computer program, when read and executed by the packaged IC, implementing the control method of an air conditioner according to any one of claims 1 to 5.
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| KR100766177B1 (en) * | 2006-08-04 | 2007-10-10 | 주식회사 대우일렉트로닉스 | How to control the operation of the air conditioner |
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