CN114811914A - Control method of air conditioner and air conditioner - Google Patents

Control method of air conditioner and air conditioner Download PDF

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Publication number
CN114811914A
CN114811914A CN202210522846.6A CN202210522846A CN114811914A CN 114811914 A CN114811914 A CN 114811914A CN 202210522846 A CN202210522846 A CN 202210522846A CN 114811914 A CN114811914 A CN 114811914A
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Prior art keywords
temperature
outer ring
compressor
frequency
value
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CN202210522846.6A
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CN114811914B (en
Inventor
胡林锋
赵攀
田涛
张中强
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Ningbo Aux Electric Co Ltd
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Ningbo Aux Electric 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
    • F24F11/70—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The embodiment of the invention provides an air conditioner control method and an air conditioner, wherein the air conditioner control method comprises the following steps: acquiring the outdoor environment temperature; determining an outdoor environment temperature control value, an outer disc temperature frequency limiting value and an exhaust temperature frequency limiting value according to the outdoor environment temperature; controlling the running state of the compressor according to the outer disc temperature frequency limit value and the exhaust temperature frequency limit value; and determining the upper limit value of the running frequency of the compressor according to the outdoor environment temperature control value. The invention solves the technical problem of unreasonable frequency limit control of the existing air conditioner.

Description

Control method of air conditioner and air conditioner
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a control method of an air conditioner and the air conditioner.
Background
With the development of science and technology and the increasing improvement of the living standard of people, the air conditioner becomes an indispensable household appliance in the life of people. With the technology becoming mature and the competition becoming fierce, the quality requirements of the air conditioner for consumers are higher and higher.
When the air conditioner operates in a refrigerating mode under a high-temperature working condition, the temperature of the outer disc and the exhaust temperature can rise, and the operating frequency of the compressor is usually limited in order to avoid the overhigh pressure and temperature of an air conditioner system.
However, the frequency limiting control of the compressor of the existing air conditioner control method is unreasonable, the problem that the comfort is poor due to the fact that the refrigerating capacity is seriously attenuated under the high-temperature working condition and the refrigerating requirement of a user cannot be met easily occurs.
Disclosure of Invention
In order to solve the problem of unreasonable frequency limit control of the existing air conditioner, the invention provides a control method of the air conditioner, which comprises the following steps: acquiring the outdoor environment temperature; determining an outdoor environment temperature control value, an outer disc temperature frequency limiting value and an exhaust temperature frequency limiting value according to the outdoor environment temperature; controlling the running state of the compressor according to the outer disc temperature frequency limit value and the exhaust temperature frequency limit value; and determining the upper limit value of the running frequency of the compressor according to the outdoor environment temperature control value.
The technical effect achieved after the technical scheme is adopted is as follows: the setting accuracy of the outdoor environment temperature control value, the outer disc temperature frequency limit value and the exhaust temperature frequency limit value can be improved by determining the outdoor environment temperature control value, the outer disc temperature frequency limit value and the exhaust temperature frequency limit value according to the outdoor environment temperature, and the condition that the upper limit value of the operation frequency of the compressor is unreasonable due to the fact that the acquired outdoor environment temperature is not accurate and the actual outdoor environment temperature is avoided; or the frequency limiting value of the temperature of the outer disc and the frequency limiting value of the exhaust temperature are unreasonably set, so that the compressor is frequently subjected to frequency reduction or frequent shutdown, and the problem that the refrigerating capacity of the air conditioner is seriously attenuated under the high-temperature working condition is caused, so that the running frequency of the compressor of the air conditioner under the high-temperature working condition can be improved, and the refrigerating capacity of the air conditioner under the high-temperature working condition is improved.
In this embodiment, the determining the outdoor environment temperature control value according to the outdoor environment temperature includes: according to the outsideDetermining an outdoor environment temperature correction value according to the magnitude relation between the environment temperature and the outdoor environment temperature correction threshold value; determining the outdoor environment temperature control value according to the outdoor environment temperature and the outdoor environment temperature correction value; wherein, T Outer ring control ＝T Outer ring -T Repair the ；T Outer ring controller Is an outdoor ambient temperature control value; t is Outer ring Is the outdoor ambient temperature; t is Repair 2 And the corrected value is the outdoor environment temperature.
The technical effect achieved after the technical scheme is adopted is as follows: it can be understood that the outdoor environment temperature detection device is usually placed close to the outdoor heat exchanger, and the outdoor environment temperature detection device may be influenced by the heat radiation of the condenser at a high temperature to cause the outdoor environment temperature acquired by the outdoor environment temperature detection device to be slightly higher than the actual outdoor environment temperature. Through comparing outdoor ambient temperature and outdoor ambient temperature correction threshold, can learn whether current outdoor ambient temperature detection device receives condenser heat radiation influence, thereby can be when outdoor ambient temperature that outdoor ambient temperature detection device obtained is a little higher than actual outdoor ambient temperature, in time revise outdoor ambient temperature control value, avoid restricting compressor operating frequency too early, the refrigeration capacity decay that leads to the air conditioner under the high temperature operating mode is serious, can't satisfy user's refrigeration demand, influence user's travelling comfort.
In this embodiment, the determining the outdoor environment temperature correction value according to the magnitude relationship between the outdoor environment temperature and the outdoor environment temperature correction threshold value includes: when T is Outer ring ＜T Outer ring repair 1 When, T Repair the 0; when T is Outer ring repair 1 ≤T Outer ring ＜T Outer ring repair 2 When, T Repair the ＝T Trimming 1 (ii) a When T is Outer ring ≥T Outer ring repair 2 When, T Repair the ＝T Repair 2 (ii) a Wherein, T Trimming 1 ＜T Repair 2 ；T Outer ring repair 1 Correcting a threshold for the first outdoor ambient temperature; t is Outer ring repair 2 Correcting a threshold for a second outdoor ambient temperature; t is Trimming 1 A first outdoor ambient temperature correction value; t is a unit of Repair 2 Is a second outdoor ambient temperature correction value.
The technical effect achieved after the technical scheme is adopted is as follows: it is understood that the higher the outdoor ambient temperature is, the greater the influence of the condenser on the outdoor ambient temperature detection means is. When T is Outer ring ＜T Outer ring repair 1 In the meantime, the outdoor environment temperature detection device is not affected by the heat radiation of the condenser, and the outdoor environment temperature control value is not required to be corrected, so that T is set Repair the 0; when T is Outer ring repair 1 ≤T Outer ring ＜T Outer ring repair 2 When the outdoor environment temperature detection device is influenced by the heat radiation of the condenser, the outdoor environment temperature acquired by the outdoor environment temperature detection device is slightly higher than the actual outdoor environment temperature, the outdoor environment temperature control value needs to be properly reduced, and the outdoor environment temperature control value is corrected, so that T is set Repair the ＝T Trimming 1 (ii) a When T is Outer ring ≥T Outer ring repair 2 In the meantime, the outdoor ambient temperature detection device is greatly influenced by heat radiation of the condenser, and the outdoor ambient temperature correction value needs to be increased, so that T is set Repair the ＝T Repair 2 。
In this embodiment, the determining the upper limit value of the operating frequency of the compressor according to the outdoor environment temperature control value includes: when T is Outer ring control ＜T Outer ring 1 When the upper limit value of the running frequency of the compressor is f 2 (ii) a When T is Outer ring 1 ≤T Outer ring control ＜T Outer ring 2 When the upper limit value of the running frequency of the compressor is f 3 +(f 2 -f 3 )*(T Outer ring 2 -T Outer ring control )/(T Outer ring 2 -T Outer ring 1 ) (ii) a When T is Outer ring 2 ≤T Outer ring control ＜T Outer ring 3 When the upper limit value of the running frequency of the compressor is f 3 +(f 1 -f 3 )*(T Outer ring control -T Outer ring 2 )/(T Outer ring 3 -T Outer ring 2 ) (ii) a When T is Outer ring 3 ≤T Outer ring control ＜T Outer ring 4 When the upper limit value of the running frequency of the compressor is f 1 (ii) a When T is Outer ring 4 ≤T Outer ring controller ＜T Outer ring 5 When the upper limit value of the running frequency of the compressor is f 1 -(f 1 -f 4 )*(T Outer ring control -T Outer ring 4 )/(T Outer ring 5 -T Outer ring 4 ) (ii) a When T is Outer ring control ≥T Outer ring 5 When the upper limit value of the running frequency of the compressor is f 4 。
The technical effect achieved after the technical scheme is adopted is as follows: through setting up a plurality of outdoor ambient temperature threshold values, divide outdoor ambient temperature into a plurality of outdoor ambient temperature intervals, then according to the interval that outdoor ambient temperature control value after the correction is located, set up different compressor operating frequency upper limit values, can improve the precision that sets up of compressor operating frequency upper limit value, avoid appearing that compressor operating frequency upper limit value sets up the unable heat transfer demand that satisfies the user of the refrigerating output that unreasonable leads to the air conditioner, influence the problem of user's travelling comfort.
In this embodiment, the controlling the operation state of the compressor according to the outer disc temperature frequency limit value and the discharge temperature frequency limit value includes: controlling the running state of the compressor according to the magnitude relation between the temperature of the outer disc and the frequency limiting value of the temperature of the outer disc; and/or controlling the running state of the compressor according to the magnitude relation between the exhaust temperature and the exhaust temperature frequency limit value.
The technical effect achieved after the technical scheme is adopted is as follows: controlling the running state of the compressor according to the magnitude relation between the temperature of the outer disc and the frequency limiting value of the temperature of the outer disc; and controlling the running state of the compressor according to the magnitude relation between the exhaust temperature and the exhaust temperature frequency limiting value, so that the running state of the compressor can be accurately adjusted, and the situation that the running frequency of the compressor is limited too early, the refrigerating capacity of the air conditioner is seriously attenuated under a high-temperature working condition, the refrigerating requirement of a user cannot be met, and the comfort of the user is influenced is avoided.
In this embodiment, the outer disc temperature frequency limit value includes an outer disc temperature 1, an outer disc temperature 2, an outer disc temperature 3, an outer disc temperature 4, and an outer disc temperature 5; the step of controlling the running state of the compressor according to the magnitude relation between the outer disc temperature and the outer disc temperature frequency limit value comprises the following steps: when the temperature of the outer disc is less than or equal to the temperature of the outer disc 1, the limitation of the temperature of the outer disc on the running frequency of the compressor is removed; when the temperature of the outer disc is more than 1 and less than or equal to 2, controlling the running frequency of the compressor to slowly rise; when the temperature of the outer disc is more than 2 and less than or equal to 3, forbidding to increase the running frequency of the compressor; when the temperature of the outer disc is more than 3 and less than or equal to 4, controlling the running frequency of the compressor to slowly reduce; when the temperature of the outer disc is more than 4 and less than or equal to 5, controlling the running frequency of the compressor to be rapidly reduced; and when the temperature of the outer disk is more than 5, controlling the compressor to stop.
The technical effect achieved after the technical scheme is adopted is as follows: it will be appreciated that the condenser condenses while the refrigerant is in a saturated state, with the temperature being proportional to the pressure. When the temperature of the outer disc is less than or equal to the temperature of the outer disc 1, the temperature of the outer disc and the system pressure are lower, and frequency limitation is not needed, so that the limitation of the temperature of the outer disc on the running frequency of the compressor is removed; when the temperature of the outer disc is more than 1 and less than or equal to 2, the system pressure corresponding to the temperature of the outer disc is slightly lower than the saturation pressure of the conventional operation of the compressor, so that the operation frequency of the compressor is controlled to be slowly increased; when the temperature of the outer disc is more than 2 and less than or equal to 3, the system pressure corresponding to the temperature of the outer disc is the saturation pressure of the conventional operation of the compressor, if the frequency is increased, the frequency of the compressor is too high, the operation reliability of the unit is influenced, and the operation frequency of the compressor is forbidden to be increased; when the temperature of the outer disc is more than 3 and less than or equal to 4, the system pressure corresponding to the temperature of the outer disc is slightly higher than the saturation pressure of the conventional operation of the compressor, so that the operation frequency of the compressor is controlled to be slowly reduced; when the temperature of the outer disc is more than 4 and less than or equal to 5, the system pressure corresponding to the temperature of the outer disc is slightly lower than the maximum allowable pressure of the conventional operation of the compressor, so that the operation frequency of the compressor is controlled to be rapidly reduced; when the temperature of the outer disk is more than 5, the system pressure corresponding to the temperature of the outer disk is higher than the maximum allowable pressure for normal operation of the compressor, so that the compressor is controlled to stop.
In the present embodiment, the exhaust temperature frequency limit value includes an exhaust temperature 1, an exhaust temperature 2, an exhaust temperature 3, an exhaust temperature 4, and an exhaust temperature 5; the controlling the running state of the compressor according to the magnitude relation between the exhaust temperature and the exhaust temperature frequency limiting value comprises the following steps: when the exhaust temperature is less than or equal to the exhaust temperature 1, removing the limitation of the exhaust temperature on the running frequency of the compressor; when the exhaust temperature is more than 1 and less than or equal to 2, controlling the running frequency of the compressor to slowly rise; when the exhaust temperature is more than 2 and less than or equal to 3, forbidding to increase the running frequency of the compressor; when the exhaust temperature is more than 3 and less than or equal to 4, controlling the running frequency of the compressor to slowly reduce; when the exhaust temperature is more than 4 and less than or equal to 5, controlling the running frequency of the compressor to be rapidly reduced; and when the exhaust temperature is larger than the exhaust temperature 5, controlling the compressor to stop.
The technical effect achieved after the technical scheme is adopted is as follows: when the exhaust temperature is less than or equal to the exhaust temperature 1, the exhaust temperature is lower, and frequency limitation is not needed, so that the limitation of the exhaust temperature on the running frequency of the compressor is removed; when the exhaust temperature is more than 1 and less than or equal to 2, the exhaust temperature is lower than that of the compressor in the conventional running state, so that the running frequency of the compressor is controlled to be slowly increased; when the exhaust temperature is more than 2 and less than or equal to 3, the exhaust temperature is the exhaust temperature of the compressor in the normal running state, so that the running frequency of the compressor is forbidden to be increased; when the exhaust temperature is more than 3 and less than or equal to 4, the exhaust temperature is slightly higher than that of the compressor in the conventional operation state, so that the operation frequency of the compressor is controlled to be slowly reduced; when the exhaust temperature is more than 4 and less than or equal to 5, the exhaust temperature is higher and slightly lower than the maximum allowable exhaust temperature of the compressor, so that the operation frequency of the compressor is controlled to be rapidly reduced; when the exhaust temperature is larger than the exhaust temperature 5, the exhaust temperature is higher than the maximum exhaust temperature allowed by the compressor, so that the compressor is controlled to stop.
In this embodiment, the determining the frequency limit value of the outer disk temperature according to the outdoor environment temperature includes: when T is Outer ring ≥T Outer ring repair 2 And increasing the temperature frequency limit value of the outer plate.
The technical effect achieved after the technical scheme is adopted is as follows: it will be appreciated that when T is Outer ring ＜T Outer ring repair 2 In the process, the temperature of the outer disc is usually not too high, and the temperature of the outer disc is corrected without increasing the temperature limit frequency value of the outer disc, so that the running reliability of the compressor is preferentially ensured; when T is Outer ring ≥T Outer ring repair 2 When in use, the temperature frequency limit value of the outer plate is properly increased,premature disabling of the up-conversion can be avoided.
In this embodiment, the determining the exhaust temperature frequency limit value according to the outdoor ambient temperature includes: when T is Outer ring ≥T Outer ring repair 1 When the temperature of the exhaust gas reaches the limit frequency value, the exhaust gas temperature limit frequency value is increased; wherein the increase value of the exhaust temperature frequency limit value is positively correlated with the outdoor environment temperature.
The technical effect achieved after the technical scheme is adopted is as follows: it is understood that when the outdoor ambient temperature rises, the exhaust temperature limit can be appropriately increased to avoid inhibiting the frequency rising too early. The higher the outdoor ambient temperature, the greater the effect on the exhaust temperature limit.
In this embodiment, the method for controlling an air conditioner further includes: when T is Outer ring ≥T Outer ring repair 1 When the temperature is higher than the outdoor temperature, the rotating speed of the outdoor fan is increased according to the outdoor environment temperature; wherein the increase value of the rotating speed of the outdoor fan is positively correlated with the outdoor environment temperature.
The technical effect achieved after the technical scheme is adopted is as follows: it is understood that when the outdoor ambient temperature rises to a certain value, the cooling capacity will decay. If T Outer ring ≥T Outer ring repair 1 If so, the refrigeration capacity begins to attenuate, so that the heat exchange effect of the outdoor heat exchanger is improved by increasing the rotating speed of the outdoor fan, and the refrigeration capacity of the air conditioner is improved; on the other hand, the effect of reducing the system pressure can also be achieved.
An embodiment of the present invention provides an air conditioner, including: the acquisition module is used for acquiring the outdoor environment temperature; the first control module is used for determining an outdoor environment temperature control value, an outer disc temperature frequency limiting value and an exhaust temperature frequency limiting value according to the outdoor environment temperature; the second control module is used for controlling the running state of the compressor according to the outer disc temperature frequency limit value and the exhaust temperature frequency limit value; and the third control module is used for determining the upper limit value of the running frequency of the compressor according to the outdoor environment temperature control value.
An embodiment of the present invention provides an air conditioner, including: a readable storage medium storing a computer program that is read and executed by the processor, and a processor, the air conditioner implementing the control method of the air conditioner according to any one of the preceding embodiments.
In summary, the above embodiments of the present application may have one or more of the following advantages or benefits:
(1) the setting accuracy of the outdoor environment temperature control value, the outer disc temperature frequency limit value and the exhaust temperature frequency limit value can be improved by determining the outdoor environment temperature control value, the outer disc temperature frequency limit value and the exhaust temperature frequency limit value according to the outdoor environment temperature, and the condition that the upper limit value of the operation frequency of the compressor is unreasonable due to the fact that the acquired outdoor environment temperature is not accurate and the actual outdoor environment temperature is avoided; or the frequency limiting value of the temperature of the outer disc and the frequency limiting value of the exhaust temperature are unreasonably set, so that the compressor is frequently subjected to frequency reduction or frequent shutdown, and the problem that the refrigerating capacity of the air conditioner is seriously attenuated under the high-temperature working condition is caused, so that the running frequency of the compressor of the air conditioner under the high-temperature working condition can be improved, and the refrigerating capacity of the air conditioner under the high-temperature working condition is improved.
(2) Through comparing outdoor ambient temperature and outdoor ambient temperature correction threshold value, can learn whether current outdoor ambient temperature detection device receives condenser heat radiation influence, thereby can be when outdoor ambient temperature that outdoor ambient temperature detection device acquireed is a little higher than actual outdoor ambient temperature, in time revise outdoor ambient temperature control value, avoid restricting compressor operating frequency too early, the refrigerating output decay that leads to air conditioner under the high temperature operating mode is serious, can't satisfy user's refrigeration demand, influence user's travelling comfort.
(3) When the outdoor environment temperature is low, the refrigerating capacity requirement is low, the requirement can be met by the rotating speed of a conventional external fan, and the compressor can be prevented from operating at high temperature and high pressure for a long time to influence the operation reliability of a unit by setting a low outer disc temperature frequency limit value and an exhaust temperature frequency limit value; when the environmental temperature rises to a certain value, the refrigerating capacity can be attenuated, the refrigerating capacity is increased and the system pressure is reduced by increasing the rotating speed of the outer fan, the running frequency of the compressor is increased by increasing the frequency limiting value of the temperature of the outer disc and the frequency limiting value of the exhaust temperature, the high-temperature refrigerating capacity is increased, and the problem that the high-temperature refrigerating capacity cannot meet the user requirement is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a control method of an air conditioner according to a first embodiment of the present invention.
Fig. 2 is a schematic view of the compressor operating frequency control.
Fig. 3 is a schematic block diagram of an air conditioner according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
[ first embodiment ] A
Referring to fig. 1, a flowchart of a control method of an air conditioner according to a first embodiment of the present invention is shown. The control method of the air conditioner comprises the following steps: acquiring the outdoor environment temperature; determining an outdoor environment temperature control value, an outer disc temperature frequency limiting value and an exhaust temperature frequency limiting value according to the outdoor environment temperature; controlling the running state of the compressor according to the outer disc temperature frequency limit value and the exhaust temperature frequency limit value; and determining the upper limit value of the running frequency of the compressor according to the outdoor environment temperature control value.
The setting accuracy of the outdoor environment temperature control value, the outer disc temperature frequency limit value and the exhaust temperature frequency limit value can be improved by determining the outdoor environment temperature control value, the outer disc temperature frequency limit value and the exhaust temperature frequency limit value according to the outdoor environment temperature, and the condition that the upper limit value of the operation frequency of the compressor is unreasonable due to the fact that the acquired outdoor environment temperature is not accurate and the actual outdoor environment temperature is avoided; or the frequency limiting value of the temperature of the outer disc and the frequency limiting value of the exhaust temperature are unreasonably set, so that the compressor is frequently subjected to frequency reduction or frequent shutdown, and the problem that the refrigerating capacity of the air conditioner is seriously attenuated under the high-temperature working condition is caused, so that the running frequency of the compressor of the air conditioner under the high-temperature working condition can be improved, and the refrigerating capacity of the air conditioner under the high-temperature working condition is improved.
In a specific embodiment, when the outdoor environment temperature is lower, the refrigerating capacity requirement is lower, the requirement can be met by the rotating speed of a conventional external fan, and at the moment, the compressor can be prevented from operating at high temperature and high pressure for a long time to influence the operation reliability of a unit by setting a lower outer disc temperature frequency limit value and an exhaust temperature frequency limit value; when the environmental temperature rises to a certain value, the refrigerating capacity can be attenuated, the refrigerating capacity is increased and the system pressure is reduced by increasing the rotating speed of the outer fan, the running frequency of the compressor is increased by increasing the frequency limiting value of the temperature of the outer disc and the frequency limiting value of the exhaust temperature, the high-temperature refrigerating capacity is increased, and the problem that the high-temperature refrigerating capacity cannot meet the user requirement is avoided.
Further, the determining an outdoor environment temperature control value according to the outdoor environment temperature includes: determining an outdoor environment temperature correction value according to the magnitude relation between the outdoor environment temperature and the outdoor environment temperature correction threshold value; determining the outdoor environment temperature control value according to the outdoor environment temperature and the outdoor environment temperature correction value; wherein, T Outer ring control ＝T Outer ring -T Repair the ；T Outer ring control Is an outdoor ambient temperature control value; t is Outer ring Is the outdoor ambient temperature; t is Repair 2 And the corrected value is the outdoor environment temperature.
It can be understood that the outdoor environment temperature detection device is usually placed close to the outdoor heat exchanger, and the outdoor environment temperature detection device may be influenced by the heat radiation of the condenser at a high temperature to cause the outdoor environment temperature acquired by the outdoor environment temperature detection device to be slightly higher than the actual outdoor environment temperature. Through comparing outdoor ambient temperature and outdoor ambient temperature correction threshold, can learn whether current outdoor ambient temperature detection device receives condenser heat radiation influence, thereby can be when outdoor ambient temperature that outdoor ambient temperature detection device obtained is a little higher than actual outdoor ambient temperature, in time revise outdoor ambient temperature control value, avoid restricting compressor operating frequency too early, the refrigeration capacity decay that leads to the air conditioner under the high temperature operating mode is serious, can't satisfy user's refrigeration demand, influence user's travelling comfort.
Further, the determining an outdoor environment temperature correction value according to the magnitude relationship between the outdoor environment temperature and the outdoor environment temperature correction threshold value includes: when T is Outer ring ＜T Outer ring repair 1 When, T Repair the 0; when T is Outer ring repair 1 ≤T Outer ring ＜T Outer ring repair 2 When, T Repair the ＝T Trimming 1 (ii) a When T is Outer ring ≥T Outer ring repair 2 When, T Repair the ＝T Repair 2 (ii) a Wherein, T Trimming 1 ＜T Repair 2 ；T Outer ring repair 1 Correcting a threshold for the first outdoor ambient temperature; t is Outer ring repair 2 Correcting a threshold for a second outdoor ambient temperature; t is Trimming 1 A first outdoor ambient temperature correction value; t is a unit of Repair 2 Is a second outdoor ambient temperature correction value. For example, T Trimming 1 With a preferred value of 1 deg.C; t is Repair 2 A preferred value of (2) is. T is Outer ring repair 1 Is 38 deg.C; t is Outer ring repair 1 A preferred value of 43 deg.c.
It is understood that the higher the outdoor ambient temperature is, the greater the influence of the condenser on the outdoor ambient temperature detection means is. When T is Outer ring ＜T Outer ring repair 1 In the meantime, the outdoor environment temperature detection device is not affected by the heat radiation of the condenser, and the outdoor environment temperature control value is not required to be corrected, so that T is set Repair the 0; when T is Outer ring repair 1 ≤T Outer ring ＜T Outer ring repair 2 When the outdoor environment temperature detection device is influenced by the heat radiation of the condenser, the outdoor environment temperature acquired by the outdoor environment temperature detection device is slightly higher than the actual outdoor environment temperature, the outdoor environment temperature control value needs to be properly reduced, and the outdoor environment temperature is controlledCorrecting the system value, so setting T Repair the ＝T Trimming 1 (ii) a When T is Outer ring ≥T Outer ring repair 2 In the meantime, the outdoor ambient temperature detection device is greatly influenced by heat radiation of the condenser, and the outdoor ambient temperature correction value needs to be increased, so that T is set Repair the ＝T Repair 2 。
Further, with reference to fig. 2, the determining an upper limit value of an operating frequency of the compressor according to the outdoor environment temperature control value includes: when T is Outer ring control ＜T Outer ring 1 When the upper limit value of the running frequency of the compressor is f 2 (ii) a When T is Outer ring 1 ≤T Outer ring control ＜T Outer ring 2 When the upper limit value of the running frequency of the compressor is f 3 +(f 2 -f 3 )*(T Outer ring 2 -T Outer ring control )/(T Outer ring 2 -T Outer ring 1 ) (ii) a When T is Outer ring 2 ≤T Outer ring control ＜T Outer ring 3 When the upper limit value of the running frequency of the compressor is f 3 +(f 1 -f 3 )*(T Outer ring control -T Outer ring 2 )/(T Outer ring 3 -T Outer ring 2 ) (ii) a When T is Outer ring 3 ≤T Outer ring control ＜T Outer ring 4 When the upper limit value of the running frequency of the compressor is f 1 (ii) a When T is Outer ring 4 ≤T Outer ring control ＜T Outer ring 5 When the upper limit value of the running frequency of the compressor is f 1 -(f 1 -f 4 )*(T Outer ring control -T Outer ring 4 )/(T Outer ring 5 -T Outer ring 4 ) (ii) a When T is Outer ring control ≥T Outer ring 5 When the upper limit value of the running frequency of the compressor is f 4 。
Further, the control method of the air conditioner further comprises the following steps: and determining the lower limit value of the running frequency of the compressor according to the outdoor environment temperature control value. Wherein, when T Outer ring control ＜T Outer ring 4 When the lower limit value of the running frequency of the compressor is f 6 (ii) a When T is Outer ring control ≥T Outer ring 4 When the lower limit value of the running frequency of the compressor is f 5 . Specifically, the lower limit value and the upper limit value of the operating frequency of the compressor can be properly adjusted according to different models.
For example,T outer ring 1 Is preferably 16 ℃; t is Outer ring 2 Is 25 deg.C; t is Outer ring 3 With a preferred value of 30 ℃; t is Outer ring 4 With a preferred value of 39 ℃; t is Outer ring 5 A preferred value of 48 ℃. f. of 1 The value range of (A) is 70-110Hz, and the preferred value is 85 Hz; f. of 2 The value range of (A) is 50-80Hz, and the preferred value is 65 Hz; f. of 3 The value range of (A) is 40-70Hz, and the preferred value is 55 Hz; f. of 4 The value range of (A) is 30-60Hz, and the preferred value is 50 Hz; f. of 5 The value range of (A) is 20-50Hz, and the preferred value is 85 Hz; f. of 6 The value range of (A) is 10-40Hz, and the preferred value is 20 Hz.
Through setting up a plurality of outdoor ambient temperature threshold values, divide outdoor ambient temperature into a plurality of outdoor ambient temperature intervals, then according to the interval that outdoor ambient temperature control value after the correction is located, set up different compressor operating frequency upper limit values, can improve the precision that sets up of compressor operating frequency upper limit value, avoid appearing that compressor operating frequency upper limit value sets up the unable heat transfer demand that satisfies the user of the refrigerating output that unreasonable leads to the air conditioner, influence the problem of user's travelling comfort.
Further, the controlling the operation state of the compressor according to the outer disk temperature frequency limit value and the exhaust temperature frequency limit value comprises: controlling the running state of the compressor according to the magnitude relation between the temperature of the outer disc and the frequency limiting value of the temperature of the outer disc; and/or controlling the running state of the compressor according to the magnitude relation between the exhaust temperature and the exhaust temperature frequency limiting value.
Controlling the running state of the compressor according to the magnitude relation between the temperature of the outer disc and the frequency limiting value of the temperature of the outer disc; and controlling the running state of the compressor according to the magnitude relation between the exhaust temperature and the exhaust temperature frequency limiting value, so that the running state of the compressor can be accurately adjusted, and the situation that the running frequency of the compressor is limited too early, the refrigerating capacity of the air conditioner is seriously attenuated under a high-temperature working condition, the refrigerating requirement of a user cannot be met, and the comfort of the user is influenced is avoided.
Further, the outer disc temperature frequency limit value comprises an outer disc temperature 1, an outer disc temperature 2, an outer disc temperature 3, an outer disc temperature 4 and an outer disc temperature 5; the step of controlling the running state of the compressor according to the magnitude relation between the outer disc temperature and the outer disc temperature frequency limit value comprises the following steps: when the temperature of the outer disc is less than or equal to the temperature of the outer disc 1, the limitation of the temperature of the outer disc on the running frequency of the compressor is removed; when the temperature of the outer disc is more than 1 and less than or equal to 2, controlling the running frequency of the compressor to slowly rise; when the temperature of the outer disc is more than 2 and less than or equal to 3, forbidding to increase the running frequency of the compressor; when the temperature of the outer disc is more than 3 and less than or equal to 4, controlling the running frequency of the compressor to slowly reduce; when the temperature of the outer disc is more than 4 and less than or equal to 5, controlling the running frequency of the compressor to be rapidly reduced; and when the temperature of the outer disk is more than 5, controlling the compressor to stop.
For example, the value of the outer disc temperature 1 is 54-58 ℃, and the preferred value is 56 ℃; the value range of the outer disc temperature 2 is 56-60 ℃, and the preferred value is 58 ℃; the value range of the outer plate temperature 3 is 58-62 ℃, and the preferred value is 60 ℃; the value range of the outer disc temperature 4 is 60-64 ℃, and the preferred value is 62 ℃; the value of the outer disc temperature 5 is in the range of 62-66 ℃, and the preferred value is 64 ℃.
It will be appreciated that the condenser condenses while the refrigerant is in a saturated state, with a temperature proportional to the pressure. When the temperature of the outer disc is less than or equal to the temperature of the outer disc 1, the temperature of the outer disc and the system pressure are lower, and frequency limitation is not needed, so that the limitation of the temperature of the outer disc on the running frequency of the compressor is removed; when the temperature of the outer disc is more than 1 and less than or equal to 2, the system pressure corresponding to the temperature of the outer disc is slightly lower than the saturation pressure of the conventional operation of the compressor, so that the operation frequency of the compressor is controlled to be slowly increased; when the temperature of the outer disc is more than 2 and less than or equal to 3, the system pressure corresponding to the temperature of the outer disc is the saturation pressure of the conventional operation of the compressor, if the frequency is increased, the frequency of the compressor is too high, the operation reliability of the unit is influenced, and the operation frequency of the compressor is forbidden to be increased; when the temperature of the outer disc is more than 3 and less than or equal to 4, the system pressure corresponding to the temperature of the outer disc is slightly higher than the saturation pressure of the conventional operation of the compressor, so that the operation frequency of the compressor is controlled to be slowly reduced; when the temperature of the outer disc is more than 4 and less than or equal to 5, the system pressure corresponding to the temperature of the outer disc is slightly lower than the maximum allowable pressure of the conventional operation of the compressor, so that the operation frequency of the compressor is controlled to be rapidly reduced; when the temperature of the outer disk is more than 5, the system pressure corresponding to the temperature of the outer disk is higher than the maximum allowable pressure for normal operation of the compressor, so that the compressor is controlled to stop.
Further, the exhaust temperature frequency limit value comprises an exhaust temperature 1, an exhaust temperature 2, an exhaust temperature 3, an exhaust temperature 4 and an exhaust temperature 5; the controlling the running state of the compressor according to the magnitude relation between the exhaust temperature and the exhaust temperature frequency limiting value comprises the following steps: when the exhaust temperature is less than or equal to the exhaust temperature 1, removing the limitation of the exhaust temperature on the running frequency of the compressor; when the exhaust temperature is more than 1 and less than or equal to 2, controlling the running frequency of the compressor to slowly rise; when the exhaust temperature is more than 2 and less than or equal to 3, forbidding to increase the running frequency of the compressor; when the exhaust temperature is more than 3 and less than or equal to 4, controlling the running frequency of the compressor to slowly reduce; when the exhaust temperature is more than 4 and less than or equal to 5, controlling the running frequency of the compressor to be rapidly reduced; and when the exhaust temperature is larger than the exhaust temperature 5, controlling the compressor to stop.
For example, the exhaust temperature 1 is in the range of 90-100 ℃, preferably 95 ℃; the value range of the exhaust temperature 2 is 95-105 ℃, and the preferred value is 100 ℃; the value range of the exhaust temperature 3 is 100-110 ℃, and the preferred value is 105 ℃; the value range of the exhaust temperature 4 is 105-115 ℃, and the preferred value is 110 ℃; the exhaust temperature 5 is in the range of 110-120 ℃, and the preferred value is 115 ℃.
It can be understood that when the exhaust temperature is less than or equal to the exhaust temperature 1, the exhaust temperature is lower, and the frequency limitation is not needed, so that the limitation of the exhaust temperature on the operation frequency of the compressor is removed; when the exhaust temperature is more than 1 and less than or equal to 2, the exhaust temperature is lower than that of the compressor in the conventional running state, so that the running frequency of the compressor is controlled to be slowly increased; when the exhaust temperature is more than 2 and less than or equal to 3, the exhaust temperature is the exhaust temperature of the compressor in the normal running state, so that the running frequency of the compressor is forbidden to be increased; when the exhaust temperature is more than 3 and less than or equal to 4, the exhaust temperature is slightly higher than that of the compressor in the conventional operation state, so that the operation frequency of the compressor is controlled to be slowly reduced; when the exhaust temperature is more than 4 and less than or equal to 5, the exhaust temperature is higher and slightly lower than the maximum allowable exhaust temperature of the compressor, so that the operation frequency of the compressor is controlled to be rapidly reduced; when the exhaust temperature is larger than the exhaust temperature 5, the exhaust temperature is higher than the maximum exhaust temperature allowed by the compressor, so that the compressor is controlled to stop.
Further, the determining the frequency limit value of the outer disk temperature according to the outdoor environment temperature includes: when T is Outer ring ≥T Outer ring repair 2 And increasing the temperature frequency limit value of the outer plate.
It is understood that when T is Outer ring ＜T Outer ring repair 2 In the process, the temperature of the outer disc is usually not too high, and the temperature of the outer disc is corrected without increasing the temperature limit frequency value of the outer disc, so that the running reliability of the compressor is preferentially ensured; when T is Outer ring ≥T Outer ring repair 2 In time, the temperature frequency limit value of the outer disc is properly increased, and premature forbidding of frequency increasing can be avoided.
In one embodiment, when T Outer ring ≥T Outer ring repair 2 In this case, the outer disk temperature 1 is raised by 1 ℃, the outer disk temperature 2 is raised by 1 ℃ and the outer disk temperature 3 is raised by 1 ℃.
Further, the determining the exhaust temperature frequency limit value according to the outdoor environment temperature comprises: when T is Outer ring ≥T Outer ring repair 1 When the temperature of the exhaust gas reaches the limit frequency value, the exhaust gas temperature limit frequency value is increased; wherein the increase value of the exhaust temperature frequency limit value is positively correlated with the outdoor environment temperature.
In one embodiment, when T Outer ring repair 1 ≤T Outer ring ＜T Outer ring repair 2 When the temperature is higher than the temperature of the exhaust gas, the exhaust temperature 2 is increased by 1 ℃, and the exhaust temperature 3 is increased by 1 ℃; when T is Outer ring ≥T Outer ring repair 2 In this case, the exhaust temperature 1 was increased by 2 ℃, the exhaust temperature 2 was increased by 2 ℃ and the exhaust temperature 3 was increased by 2 ℃.
It is understood that when the outdoor ambient temperature rises, the exhaust temperature limit can be appropriately increased to avoid inhibiting the frequency rising too early. The higher the outdoor ambient temperature, the greater the effect on the exhaust temperature limit.
Further, when T is Outer ring ≥T Outer ring repair 1 When the temperature is higher than the outdoor temperature, the rotating speed of the outdoor fan is increased according to the outdoor environment temperature; wherein the increase value of the rotating speed of the outdoor fan is positively correlated with the outdoor environment temperature.
In one embodiment, when T Outer ring repair 1 ≤T Outer ring ＜T Outer ring repair 2 When the fan is in use, the rotating speed of the outdoor fan is increased by 1 gear; when T is Outer ring repair 1 ≤T Outer ring ＜T Outer ring repair 2 And when the fan is used, the rotating speed of the outdoor fan is increased by 1 gear. When T is Outer ring ＜T Outer ring repair 1 And when the outdoor fan runs, the rotating speed of the outdoor fan is controlled according to the conventional method.
It is understood that when the outdoor ambient temperature rises to a certain value, the cooling capacity will decay. If T Outer ring ≥T Outer ring repair 1 If so, the refrigeration capacity begins to attenuate, so that the heat exchange effect of the outdoor heat exchanger is improved by increasing the rotating speed of the outdoor fan, and the refrigeration capacity of the air conditioner is improved; on the other hand, the effect of reducing the system pressure can also be achieved.
In one embodiment, there is an outer ring ≦ T in T Outer ring repair 1 In the case of (1), if the outer ring temperature decreases after, when Touter ring ≦ T Outer ring repair 1 At-2 deg.C, the correlation control is restored to when T outer loop is less than or equal to T Outer ring repair 1 Control (2 ℃ return difference). At the outer ring of T is less than or equal to T Outer ring repair 2 In the case of (1), if the outer ring temperature decreases after, when Touter ring ≦ T Outer ring repair 2 At-2 deg.C, the correlation control is restored to when T outer loop is less than or equal to T Outer ring repair 2 Control (2 ℃ return difference).
[ second embodiment ]
A second embodiment of the present invention provides an air conditioner. Referring to fig. 3, the air conditioner 100 includes, for example: an obtaining module 110, configured to obtain an outdoor environment temperature; the first control module 120 is configured to determine an outdoor environment temperature control value, an outer disc temperature frequency limit value, and an exhaust temperature frequency limit value according to the outdoor environment temperature; the second control module 130 is configured to control an operation state of the compressor according to the outer disc temperature frequency limit value and the exhaust temperature frequency limit value; and a third control module 140, configured to determine an upper limit value of the operating frequency of the compressor according to the outdoor environment temperature control value.
In a specific embodiment, the obtaining module 110, the first control module 120, the second control module 130 and the third control module 140 are matched with each other to implement the control method of the air conditioner described in any one of the embodiments of the first embodiment, and achieve the same effects, which are not described herein again.
[ third embodiment ]
A third embodiment of the present invention provides an air conditioner. The air conditioner includes: the air conditioner realizes any one of the control methods of the air conditioner provided by the first embodiment of the present invention and achieves the same effects when the computer program is read and run by the package IC, and the details are not repeated here.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (12)

1. A control method of an air conditioner, characterized by comprising:
acquiring the outdoor environment temperature;
determining an outdoor environment temperature control value, an outer disc temperature frequency limiting value and an exhaust temperature frequency limiting value according to the outdoor environment temperature;
controlling the running state of the compressor according to the outer disc temperature frequency limit value and the exhaust temperature frequency limit value;
and determining the upper limit value of the running frequency of the compressor according to the outdoor environment temperature control value.
2. The control method of an air conditioner according to claim 1, wherein said determining an outdoor ambient temperature control value according to the outdoor ambient temperature includes:
determining an outdoor environment temperature correction value according to the magnitude relation between the outdoor environment temperature and the outdoor environment temperature correction threshold value;
determining the outdoor environment temperature control value according to the outdoor environment temperature and the outdoor environment temperature correction value;
wherein, T Outer ring control ＝T Outer ring -T Repair the ；T Outer ring control Is an outdoor ambient temperature control value; t is Outer ring Is the outdoor ambient temperature; t is Repair the And the corrected value is the outdoor environment temperature.
3. The method of claim 2, wherein said determining an outdoor ambient temperature correction value based on a magnitude relationship between the outdoor ambient temperature and an outdoor ambient temperature correction threshold value comprises:
when T is Outer ring ＜T Outer ring repair 1 When, T Repair the ＝0；
When T is Outer ring repair 1 ≤T Outer ring ＜T Outer ring repair 2 Time, T Repair the ＝T Trimming 1 ；
When T is Outer ring ≥T Outer ring repair 2 When, T Repair the ＝T Repair 2 ；
Wherein, T Trimming 1 ＜T Repair 2 ；T Outer ring repair 1 Correcting a threshold for the first outdoor ambient temperature; t is Outer ring repair 2 Correcting a threshold for a second outdoor ambient temperature; t is Trimming 1 A first outdoor ambient temperature correction value; t is Repair 2 Is a second outdoor ambient temperature correction value.
4. The control method of an air conditioner according to claim 1, wherein the determining of the compressor operation frequency upper limit value according to the outdoor environment temperature control value includes:
when T is Outer ring control ＜T Outer ring 1 At the time of operation of the compressorUpper limit of rate f 2 ；
When T is Outer ring 1 ≤T Outer ring control ＜T Outer ring 2 When the upper limit value of the running frequency of the compressor is f 3 +(f 2 -f 3 )*(T Outer ring 2 -T Outer ring control )/(T Outer ring 2 -T Outer ring 1 )；
When T is Outer ring 2 ≤T Outer ring control ＜T Outer ring 3 When the upper limit value of the running frequency of the compressor is f 3 +(f 1 -f 3 )*(T Outer ring control -T Outer ring 2 )/(T Outer ring 3 -T Outer ring 2 )；
When T is Outer ring 3 ≤T Outer ring control ＜T Outer ring 4 When the upper limit value of the running frequency of the compressor is f 1 ；
When T is Outer ring 4 ≤T Outer ring control ＜T Outer ring 5 When the upper limit value of the running frequency of the compressor is f 1 -(f 1 -f 4 )*(T Outer ring control -T Outer ring 4 )/(T Outer ring 5 -T Outer ring 4 )；
When T is Outer ring controller ≥T Outer ring 5 When the upper limit value of the running frequency of the compressor is f 4 。
5. The control method of an air conditioner according to claim 1, wherein said controlling the operation state of the compressor according to the outer panel temperature frequency limit value and the discharge air temperature frequency limit value comprises:
controlling the running state of the compressor according to the magnitude relation between the outer disc temperature and the outer disc temperature frequency limit value; and/or
And controlling the running state of the compressor according to the magnitude relation between the exhaust temperature and the exhaust temperature frequency limiting value.
6. The control method of an air conditioner according to claim 5, wherein the outer panel temperature frequency limit value includes an outer panel temperature 1, an outer panel temperature 2, an outer panel temperature 3, an outer panel temperature 4, and an outer panel temperature 5; the step of controlling the running state of the compressor according to the magnitude relation between the outer disc temperature and the outer disc temperature frequency limit value comprises the following steps:
when the temperature of the outer disc is less than or equal to the temperature of the outer disc 1, the limitation of the temperature of the outer disc on the running frequency of the compressor is removed;
when the temperature of the outer disc is more than 1 and less than or equal to 2, controlling the running frequency of the compressor to slowly rise;
when the temperature of the outer disc is more than 2 and less than or equal to 3, forbidding to increase the running frequency of the compressor;
when the temperature of the outer disc is more than 3 and less than or equal to 4, controlling the running frequency of the compressor to slowly reduce;
when the temperature of the outer disc is more than 4 and less than or equal to 5, controlling the running frequency of the compressor to be rapidly reduced;
and when the temperature of the outer disk is more than 5, controlling the compressor to stop.
7. The control method of an air conditioner according to claim 5, wherein the discharge temperature limit value includes discharge temperature 1, discharge temperature 2, discharge temperature 3, discharge temperature 4, and discharge temperature 5; the controlling the running state of the compressor according to the magnitude relation between the exhaust temperature and the exhaust temperature frequency limiting value comprises the following steps:
when the exhaust temperature is less than or equal to the exhaust temperature 1, removing the limitation of the exhaust temperature on the running frequency of the compressor;
when the exhaust temperature is more than 1 and less than or equal to 2, controlling the running frequency of the compressor to slowly rise;
when the exhaust temperature is more than 2 and less than or equal to 3, forbidding to increase the running frequency of the compressor;
when the exhaust temperature is more than 3 and less than or equal to 4, controlling the running frequency of the compressor to slowly reduce;
when the exhaust temperature is more than 4 and less than or equal to 5, controlling the running frequency of the compressor to be rapidly reduced;
and when the exhaust temperature is higher than the exhaust temperature 5, controlling the compressor to stop.
8. The method of claim 3, wherein the determining the outer panel temperature limit value according to the outdoor ambient temperature comprises:
when T is Outer ring ≥T Outer ring repair 2 And increasing the temperature frequency limit value of the outer plate.
9. The method of claim 3, wherein the determining a discharge air temperature limit based on the outdoor ambient temperature comprises:
when T is Outer ring ≥T Outer ring repair 1 When the temperature of the exhaust gas reaches the limit frequency value, the exhaust gas temperature limit frequency value is increased;
wherein the increase value of the exhaust temperature frequency limit value is positively correlated with the outdoor environment temperature.
10. The control method of an air conditioner according to claim 3, further comprising:
when T is Outer ring ≥T Outer ring repair 1 When the temperature is higher than the outdoor temperature, the rotating speed of the outdoor fan is increased according to the outdoor environment temperature;
wherein the increase value of the rotating speed of the outdoor fan is positively correlated with the outdoor environment temperature.
11. An air conditioner, characterized in that the air conditioner comprises:
the acquisition module is used for acquiring the outdoor environment temperature;
the first control module is used for determining an outdoor environment temperature control value, an outer disc temperature frequency limiting value and an exhaust temperature frequency limiting value according to the outdoor environment temperature;
the second control module is used for controlling the running state of the compressor according to the outer disc temperature frequency limit value and the exhaust temperature frequency limit value;
and the third control module is used for determining the upper limit value of the running frequency of the compressor according to the outdoor environment temperature control value.
12. An air conditioner, characterized in that the air conditioner comprises: a readable storage medium storing a computer program which is read and executed by the processor, and a processor, the air conditioner implementing the control method of the air conditioner according to any one of claims 1 to 10.
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CN115235097A (en) * 2022-08-08 2022-10-25 宁波奥克斯电气股份有限公司 Control method of air conditioner and air conditioner
CN115235097B (en) * 2022-08-08 2023-09-01 宁波奥克斯电气股份有限公司 Air conditioner control method and air conditioner

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