CN111380152B - High-temperature sterilization control method and device, air conditioner and storage medium - Google Patents

High-temperature sterilization control method and device, air conditioner and storage medium Download PDF

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Publication number
CN111380152B
CN111380152B CN202010233764.0A CN202010233764A CN111380152B CN 111380152 B CN111380152 B CN 111380152B CN 202010233764 A CN202010233764 A CN 202010233764A CN 111380152 B CN111380152 B CN 111380152B
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temperature
heat exchanger
indoor
outdoor heat
exchanger tube
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CN111380152A (en
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唐亚林
席战利
杜顺开
徐振坤
李玉
黄剑云
高卓贤
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GD Midea Air Conditioning Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41Defrosting; Preventing freezing
    • F24F11/42Defrosting; Preventing freezing of outdoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0071Indoor units, e.g. fan coil units with means for purifying supplied air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61Control or safety arrangements characterised by user interfaces or communication using timers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00Control inputs relating to system states
    • F24F2140/20Heat-exchange fluid temperature
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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

Abstract

The invention discloses a high-temperature sterilization control method, a device, an air conditioner and a storage medium, wherein the method comprises the steps of entering an initial period after a high-temperature sterilization mode is started; determining that the outdoor heat exchanger is in a frosting state, and obtaining a second fan rotating speed and/or a second compressor frequency according to the reduction of the indoor fan rotating speed and/or the compressor frequency; after the first duration of operation, reducing a second fan speed and/or a second compressor frequency based on the indoor heat exchanger tube temperature; and after the initial cycle is finished, determining a second running cycle according to the actual values of the plurality of system running parameters, and continuing to run the high-temperature sterilization mode based on the second running cycle. Therefore, after the high-temperature sterilization mode is started, the frequency of the compressor and the rotating speed of the indoor fan are controlled based on the frosting state of the outdoor heat exchanger, the operation period of high-temperature sterilization is adjusted based on the actual value of the system operation parameter, the high-temperature sterilization of the air conditioner is realized, and the operation range covered by the high-temperature sterilization is enlarged.

Description

High-temperature sterilization control method and device, air conditioner and storage medium
Technical Field
The invention relates to the technical field of machine learning, in particular to a high-temperature sterilization control method and device, an air conditioner and a storage medium.
Background
Generally, when an air conditioner is operated for heating, the surface of fins of an outdoor heat exchanger is easily frosted, and the heating capacity of the air conditioner after frosting is rapidly reduced, so that an indoor heat exchanger cannot be maintained in a high-temperature state for effectively removing bacteria, and bacteria and viruses on the surface of the indoor heat exchanger are more difficult to kill. And after frosting, defrosting is needed to recover the stronger heat exchange capacity of the outdoor heat exchanger. However, since the system is designed with reliability, the air conditioner system is unstable in the case of self-protection of the system such as exhaust protection and current protection, and if sterilization is performed in one high-temperature sterilization cycle all the time, it is difficult to cover various operating conditions.
Disclosure of Invention
The invention provides a high-temperature sterilization control method, a high-temperature sterilization control device, an air conditioner and a storage medium, and aims to realize high-temperature sterilization of the air conditioner and increase the operation range covered by the high-temperature sterilization.
In order to achieve the above object, the present invention provides a high temperature sterilization control method, comprising:
entering an initial period after starting a high-temperature sterilization mode;
if the outdoor heat exchanger is determined to be in a frosting state, reducing the rotating speed of the indoor fan and/or the frequency of the compressor according to the first descending gradient to obtain the rotating speed of a second indoor fan and/or the frequency of the second compressor;
after the first time period is operated based on the second indoor fan rotating speed and/or the second compressor frequency, reducing the second indoor fan rotating speed and/or the second compressor frequency based on the indoor heat exchanger tube temperature so as to maintain the high-temperature sterilization state of the indoor heat exchanger;
and after the initial cycle is finished, determining a second running cycle according to the actual values of a plurality of system running parameters, and continuing to run the high-temperature sterilization mode based on the second running cycle.
Preferably, after the initial period is completed, the step of determining a second operation period according to actual values of a plurality of system operation parameters includes:
after the initial period is finished, detecting actual values of a plurality of system operation parameters;
determining the second operation period based on the actual values of the plurality of system operation parameters and the magnitude of the corresponding threshold.
Preferably, the step of determining the second operation period based on the actual values of the plurality of system operation parameters and the magnitude of the corresponding threshold value comprises:
respectively comparing the actual values of the plurality of system operating parameters with the corresponding threshold values;
if the actual values of the plurality of system operation parameters are all smaller than the corresponding threshold values and the outdoor heat exchanger is judged to be in the defrosting state, increasing the first gradient duration of the initial period to determine a second operation period;
and if the actual values of the plurality of system operation parameters are not all smaller than the corresponding threshold values, determining that the initial period is increased by a second gradient duration as the second operation period.
Preferably, the step of determining that the outdoor heat exchanger tube is in a frosted state includes:
recording the temperature of the outdoor heat exchanger tube after the outdoor heat exchanger is in an easily frosted state, and acquiring the lowest temperature of the outdoor heat exchanger tube within a preset time;
if the difference value between the temperature of the outdoor heat exchanger tube and the lowest temperature of the outdoor heat exchanger tube is greater than or equal to a frosting state set value, judging that the outdoor heat exchanger is in a frosting state;
and if the difference value between the temperature of the outdoor heat exchanger tube and the lowest temperature of the outdoor heat exchanger tube is smaller than the frosting state set value, judging that the outdoor heat exchanger is not in the frosting state.
Preferably, the step of reducing the second indoor fan speed and/or the second compressor frequency based on the indoor heat exchanger tube temperature comprises:
acquiring the temperature of the indoor heat exchanger tube, and comparing the temperature of the indoor heat exchanger tube with the temperature threshold value of the indoor heat exchanger tube;
if the indoor heat exchanger tube temperature is greater than or equal to the indoor heat exchanger tube temperature threshold, reducing or maintaining the second compressor frequency according to a second frequency reduction gradient to obtain a third compressor frequency;
comparing the third compressor frequency with the lowest value of the compressor frequency, and comparing the total operation time length with the maximum operation time length;
if the third compressor frequency is smaller than the lowest compressor frequency value and the total operation time length is greater than or equal to the maximum operation time length, exiting the high-temperature sterilization mode;
if the third compressor frequency is greater than or equal to the lowest compressor frequency value and the total operation duration is less than the maximum operation duration, executing the following steps: operating for a first duration based on the second indoor fan speed and/or the second compressor frequency.
Preferably, the step of obtaining the indoor heat exchanger tube temperature and comparing the indoor heat exchanger tube temperature with an indoor heat exchanger tube temperature threshold value further comprises:
if the temperature of the indoor heat exchanger tube is smaller than the temperature threshold of the indoor heat exchanger tube, gradually reducing the rotating speed of the second indoor fan according to a second wind speed reduction gradient to obtain the rotating speed of a third indoor fan;
if the rotating speed of the third indoor fan is greater than or equal to the lowest rotating speed value of the indoor fan, and the total running time is less than the maximum running time, executing the following steps: operating for a first duration based on the second indoor fan speed and/or the second compressor frequency;
and if the rotating speed of the third indoor fan is less than the lowest rotating speed value of the indoor fan and the total running time is longer than the maximum running time, exiting the high-temperature sterilization mode.
Preferably, after the outdoor heat exchanger is in an easily frosted state, the step of recording the temperature of the outdoor heat exchanger tube, and acquiring the lowest temperature of the outdoor heat exchanger tube within a preset time further includes:
and acquiring the ambient temperature, and if the ambient temperature is lower than the frosting-prone temperature set value, judging that the outdoor heat exchanger is in a frosting-prone state.
Preferably, the ambient temperature includes an outdoor temperature and an indoor temperature;
the step of obtaining the ambient temperature, and if the ambient temperature is lower than the frosting-prone temperature set value, determining that the outdoor heat exchanger is in a frosting-prone state comprises the following steps:
detecting the outdoor temperature, and comparing the outdoor temperature with a first frost-prone temperature set value;
if the outdoor temperature is less than or equal to the first frosting-prone temperature, detecting the indoor temperature, and comparing the indoor temperature with the second frosting-prone temperature set value;
and if the indoor temperature is less than or equal to the second frosting-prone temperature set value, judging that the outdoor heat exchanger is in a frosting-prone state.
In addition, to achieve the above object, the present invention provides a high temperature sterilization control apparatus including:
the judgment module is used for entering an initial period after the high-temperature sterilization mode is started;
the first reduction module is used for determining that the outdoor heat exchanger is in a frosting state, and reducing the rotating speed of the indoor fan and/or the frequency of the compressor according to a first reduction gradient to obtain the rotating speed of a second indoor fan and/or the frequency of the second compressor;
a second reduction module, configured to reduce the second indoor fan speed and/or the second compressor frequency based on an indoor heat exchanger tube temperature after operating for a first duration based on the second indoor fan speed and/or the second compressor frequency, so as to maintain a high-temperature sterilization state of the indoor heat exchanger;
and the determining module is used for determining a second operation period according to the actual values of the plurality of system operation parameters after the initial period is finished, and continuing to operate the high-temperature sterilization mode based on the second operation period.
In addition, to achieve the above object, the present invention further provides an air conditioner, which includes a processor, a memory, and a high temperature sterilization control program stored in the memory, and when the high temperature sterilization control program is executed by the processor, the steps of the high temperature sterilization control method as described above are implemented.
In addition, to achieve the above object, the present invention also provides a computer storage medium having a high-temperature sterilization control program stored thereon, the high-temperature sterilization control program implementing the steps of the high-temperature sterilization control method as described above when being executed by a processor.
Compared with the prior art, the invention discloses a high-temperature sterilization control method, a device, an air conditioner and a storage medium, wherein the method comprises the steps of entering an initial period after a high-temperature sterilization mode is started; if the outdoor heat exchanger is determined to be in a frosting state, reducing the rotating speed of the indoor fan and/or the frequency of the compressor according to the first descending gradient to obtain the rotating speed of a second indoor fan and/or the frequency of the second compressor; after the first time period is operated based on the second indoor fan rotating speed and/or the second compressor frequency, reducing the second indoor fan rotating speed and/or the second compressor frequency based on the indoor heat exchanger tube temperature so as to maintain the high-temperature sterilization state of the indoor heat exchanger; and after the initial cycle is finished, determining a second running cycle according to the actual values of a plurality of system running parameters, and continuing to run the high-temperature sterilization mode based on the second running cycle. Therefore, after the high-temperature sterilization mode is started, the frequency of the compressor and the rotating speed of the indoor fan are controlled based on the frosting state of the outdoor heat exchanger, the operation period of high-temperature sterilization is adjusted based on the actual value of the system operation parameter, the high-temperature sterilization of the air conditioner is realized, and the operation range covered by the high-temperature sterilization is enlarged.
Drawings
Fig. 1 is a schematic diagram of a hardware configuration of an air conditioner according to embodiments of the present invention;
FIG. 2 is a schematic flow chart illustrating a high-temperature sterilization control method according to a first embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a high-temperature sterilization control method according to a second embodiment of the present invention;
FIG. 4 is a functional block diagram of the high temperature sterilization control apparatus according to the first embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic diagram of a hardware configuration of an air conditioner according to embodiments of the present invention, illustrating high-temperature sterilization control. In the embodiment of the present invention, the high temperature sterilization control may include a processor 1001 (e.g., a Central Processing Unit, CPU), a communication bus 1002, an input port 1003, an output port 1004, and a memory 1005. The communication bus 1002 is used for realizing connection communication among the components; the input port 1003 is used for data input; the output port 1004 is used for data output, the memory 1005 may be a high-speed RAM memory, or a non-volatile memory (non-volatile memory), such as a magnetic disk memory, and the memory 1005 may optionally be a storage device independent of the processor 1001. Those skilled in the art will appreciate that the hardware configuration depicted in FIG. 1 is not intended to be limiting of the present invention, and may include more or less components than those shown, or some components in combination, or a different arrangement of components.
With continued reference to fig. 1, the memory 1005 of fig. 1, which is one type of readable storage medium, may include an operating system, a network communication module, an application program module, and a high-temperature sterilization control program. In fig. 1, the network communication module is mainly used for connecting to a server and performing data communication with the server; and the processor 1001 is configured to call the high-temperature sterilization control program stored in the memory 1005, and perform the following operations: entering an initial period after starting a high-temperature sterilization mode; if the outdoor heat exchanger is determined to be in a frosting state, reducing the rotating speed of the indoor fan and/or the frequency of the compressor according to the first descending gradient to obtain the rotating speed of a second indoor fan and/or the frequency of the second compressor; after the first time period is operated based on the second indoor fan rotating speed and/or the second compressor frequency, reducing the second indoor fan rotating speed and/or the second compressor frequency based on the indoor heat exchanger tube temperature so as to maintain the high-temperature sterilization state of the indoor heat exchanger; and after the initial cycle is finished, determining a second running cycle according to the actual values of a plurality of system running parameters, and continuing to run the high-temperature sterilization mode based on the second running cycle.
The first embodiment of the present invention is proposed based on the hardware structure of the air conditioner. Referring to FIG. 2, FIG. 2 is a flow chart of a high temperature sterilization control method according to a first embodiment of the present invention.
The embodiment provides a high-temperature sterilization control method, which is applied to an air conditioner. The air conditioner comprises a shell, an indoor hot air pipe, an indoor coil pipe, an outdoor heat exchanger, an indoor fan, a compressor and the like. The air conditioner has the functions of heating, refrigerating, dehumidifying, defrosting and the like, and also has a high-temperature sterilization function.
Many kinds of bacteria and viruses are not high-temperature resistant, and most kinds of bacteria and/or viruses can be inactivated after being placed in an environment with the temperature higher than 56 ℃ for a plurality of times. The air conditioner is in a high-temperature state when the indoor heat exchanger is in a heating state, but is limited by the requirements of the reliability, heating performance and noise of a system and components of the air conditioner, the temperature of the pipe of the indoor heat exchanger is low when the air conditioner normally operates at present, the pipe is generally between 40 ℃ and 52 ℃, the high-temperature sterilization temperature cannot be reached, and bacteria and viruses are difficult to kill.
The high-temperature sterilization control method comprises the following steps:
step S101: entering an initial period after starting a high-temperature sterilization mode;
the air conditioner is configured with a high temperature sterilization mode. And receiving a high-temperature sterilization instruction sent by a user, and starting a high-temperature sterilization mode according to the high-temperature sterilization instruction. Generally, after the high-temperature sterilization instruction is received, checking a current working mode, and if the current working mode is a heating mode, starting the high-temperature sterilization mode; and if the current working mode is not the heating mode, sending a prompt of entering the high-temperature sterilization mode, and converting the current working mode into the heating mode.
And after the high-temperature sterilization mode is started, recording the current time point and entering an initial period.
Step S102: if the outdoor heat exchanger is determined to be in a frosting state, reducing the rotating speed of the indoor fan and/or the frequency of the compressor according to the first descending gradient to obtain the rotating speed of a second indoor fan and/or the frequency of the second compressor;
when the air conditioner is in a heating mode, if the outdoor temperature is too low, the surface of the fins of the outdoor heat exchanger is easy to frost. Generally, the current state of the outdoor heat exchanger may be judged by a frosting reference temperature, such as an ambient temperature, a lowest temperature of the tubes of the outdoor heat exchanger, a temperature of the indoor coil at a specific time point, and a current temperature of the outdoor heat exchanger, and the current state includes a frosting-prone state, a frosting state, and a frosting state.
In this embodiment, it is determined that the outdoor heat exchanger tube is in a frosting state based on the temperature of the outdoor heat exchanger tube.
Specifically, the step of determining that the outdoor heat exchanger is in a frosting state includes:
step S101a, recording the temperature of the outdoor heat exchanger tube after the outdoor heat exchanger is in a frosting-prone state, and acquiring the lowest temperature of the outdoor heat exchanger tube within a preset time;
when the outdoor heat exchanger is in a frosting-prone state, recording the temperature T3 of the outdoor heat exchanger tube in a continuous recording or interval recording mode to obtain a plurality of T3 values, and acquiring the lowest temperature T3min of the outdoor heat exchanger tube within a preset time (the first n minutes) based on the temperature T3 of the outdoor heat exchanger tube. Specifically, the plurality of T3 values may be sorted in a forward or reverse direction to obtain the corresponding minimum temperature T3min of the outdoor heat exchanger tube. The outdoor heat exchanger tube temperature T3 refers to the current temperature of the outdoor heat exchanger tube.
Step S101b, if the difference value between the temperature of the outdoor heat exchanger tube and the lowest temperature of the outdoor heat exchanger tube is larger than or equal to a frosting state set value, determining that the outdoor heat exchanger is in a frosting state;
the difference between the outdoor heat exchanger tube temperature T3 and the outdoor heat exchanger tube minimum temperature T3min1 is calculated and is denoted as T3-T3 min 1. Comparing the difference value with a frosting state set value C, and if T3-T3 min1 is not less than C, judging that the outdoor heat exchanger is in a frosting state;
and S101c, if the difference value between the temperature of the outdoor heat exchanger tube and the lowest temperature of the outdoor heat exchanger tube is smaller than a frosting state set value, determining that the outdoor heat exchanger is not in a frosting state.
And on the contrary, if T3-T3 min1 is less than C, the outdoor heat exchanger is judged not to be in a frosting state.
Further, step S101a is preceded by:
step S100: and acquiring the ambient temperature, and if the ambient temperature is lower than the frosting-prone temperature set value, judging that the outdoor heat exchanger is in a frosting-prone state.
In the present embodiment, the ambient temperature includes an outdoor temperature T4 and an indoor temperature T1.
Specifically, the step S100 of obtaining an ambient temperature, and if the ambient temperature is lower than a frosting-prone temperature setting value, determining that the outdoor heat exchanger is in a frosting-prone state includes:
detecting the outdoor temperature, and comparing the outdoor temperature with a first frost-prone temperature set value;
if the outdoor temperature is less than or equal to the first frosting-prone temperature, detecting the indoor temperature, and comparing the indoor temperature with the second frosting-prone temperature set value;
and if the indoor temperature is less than or equal to the second frosting-prone temperature set value, judging that the outdoor heat exchanger is in a frosting-prone state.
Detecting an outdoor temperature T4, comparing the outdoor temperature T4 with the first frosting-prone temperature set value A, if T4 is less than or equal to A, detecting an indoor temperature T1, comparing the indoor temperature T1 with the second frosting-prone temperature set value B, and if T1 is less than or equal to B, judging that the outdoor heat exchanger is in a frosting-prone state. In this embodiment, the first frosting temperature setting value a may be 0 to 7 ℃, preferably 5 ℃, and the second frosting temperature setting value B may be 5 to 15 ℃, preferably 10 ℃. On the contrary, if T4 is greater than A and/or T1 is greater than B, the outdoor heat exchanger is judged not to be in the frosting prone state, and the environment temperature continues to be detected.
And when the outdoor heat exchanger is in a frosting state, reducing the rotating speed of the indoor fan and/or the frequency of the compressor so as to ensure the stable operation of the air conditioner. In this implementation, the rotating speed of the indoor fan can be gradually reduced in a decreasing manner. Specifically, the indoor fan speed is reduced according to a first speed reduction gradient, and the compressor frequency is reduced according to a first frequency reduction gradient. If the last recorded indoor fan speed is Vn, the second indoor fan speed V2 after the speed reduction may be the second indoor fan speed V2 obtained by subtracting the first speed reduction gradient from the last recorded indoor fan speed: v2= Vn- (T3-Tmin1) Vx. Wherein, (T3-Tmin1) Vx is the first speed reduction gradient, and the number of speed reduction and Vx can be specifically set according to needs, for example, Vx will be set to a natural number greater than or equal to 1.
Specifically, the compressor frequency is reduced according to a first frequency decreasing gradient. If the last recorded compressor frequency is Fn, the second compressor frequency F2 after one down-speed may be the last recorded compressor frequency minus the first frequency decreasing gradient to obtain a second compressor frequency F2: f2= Fn- (T3-Tmin1) Fx. Where, (T3-Tmin1) × Fx is the first frequency decreasing gradient, the number of decreasing frequencies and Fx may be specifically set as required, for example, Fx will be set to a natural number greater than or equal to 1.
Step S103: after the first time period is operated based on the second indoor fan rotating speed and/or the second compressor frequency, reducing the second indoor fan rotating speed and/or the second compressor frequency based on the indoor heat exchanger tube temperature so as to maintain the high-temperature sterilization state of the indoor heat exchanger;
after operating for a first time period t1 based on the second indoor fan speed V2 and/or the second compressor frequency F2, the second indoor fan speed and/or second compressor frequency is reduced based on indoor heat exchanger tube temperature.
Specifically, the step S103 includes:
step S103 a: acquiring the temperature of the indoor heat exchanger tube, and comparing the temperature of the indoor heat exchanger tube with the temperature threshold value of the indoor heat exchanger tube;
the indoor heat exchanger tube temperature T2 is obtained, and the T2n is compared to an indoor heat exchanger tube temperature threshold.
Step S103 b: if the indoor heat exchanger tube temperature is greater than or equal to the indoor heat exchanger tube temperature threshold, reducing or maintaining the second compressor frequency according to a second frequency reduction gradient to obtain a third compressor frequency;
if T2 ≧ T2n indicates that the overall temperature of the indoor heat exchanger tube is high and may already be in a high temperature sterilization state, the second compressor frequency is lowered or maintained according to a second frequency lowering gradient in order to maintain the high temperature sterilization state, and a third compressor frequency F3 is obtained. The second frequency decreasing gradient is Fn, then the third compressor frequency F3= second compressor frequency F2-second frequency decreasing gradient Fn.
Step S103 c: comparing the third compressor frequency with the lowest value of the compressor frequency, and comparing the total operation time length with the maximum operation time length;
comparing the third compressor frequency F3 with the compressor frequency minimum Fmin.
And calculating the total operation time t based on the time point of starting the high-temperature sterilization mode and the current time point, and comparing the total operation time with the maximum operation time tmax.
Step S103 d: if the third compressor frequency is smaller than the lowest compressor frequency value and the total operation time length is greater than or equal to the maximum operation time length, exiting the high-temperature sterilization mode;
if F3 is less than Fmin and t is more than or equal to tmax, the sterilization limit of the air conditioner is reached, and the high-temperature sterilization mode needs to be exited.
Step S103 e: if the third compressor frequency is greater than or equal to the lowest compressor frequency value and the total operation duration is less than the maximum operation duration, executing the following steps: operating for a first duration based on the second indoor fan speed and/or the second compressor frequency.
If F3 is greater than or equal to Fmin and t < tmax, it is indicated that the third compressor frequency can be continuously maintained, and the steps are executed: operating for a first duration based on the second indoor fan speed and/or the second compressor frequency.
Further, the step S103 e: the step of obtaining the temperature of the indoor heat exchanger tube and comparing the temperature of the indoor heat exchanger tube with the temperature threshold value of the indoor heat exchanger tube further comprises the following steps:
step S103 f: if the temperature of the indoor heat exchanger tube is smaller than the temperature threshold of the indoor heat exchanger tube, gradually reducing the rotating speed of the second indoor fan according to a second wind speed reduction gradient to obtain the rotating speed of a third indoor fan;
if T2 < T2n, it indicates that the overall temperature of the indoor heat exchanger tube may not be high enough and may not yet enter the pasteurization state, so that defrosting may be delayed in order to maintain or enter the pasteurization state. And gradually reducing the rotating speed V2 of the second indoor fan according to the second wind speed reduction gradient Vn to obtain the rotating speed V3 of the third indoor fan. That is, the third indoor fan speed V3= the second indoor fan speed V2 — the second wind speed decreasing gradient Vn.
Step S103 g: if the rotating speed of the third indoor fan is greater than or equal to the lowest rotating speed value of the indoor fan, and the total running time is less than the maximum running time, executing the following steps: operating for a first duration based on the second indoor fan speed and/or the second compressor frequency;
based on the second wind speed reduction gradient Vn, gradually reducing the rotating speed V2 of the second indoor fan, and when the rotating speed V3 of the third indoor fan is greater than or equal to the minimum value Vmin of the rotating speed of the indoor fan, and the total operating time t is less than the maximum operating time tmax, that is, if V3 is greater than or equal to Vmin, and t is less than tmax, executing the following steps: operating for a first duration based on the second indoor fan speed and/or the second compressor frequency.
Step S103 h: and if the rotating speed of the third indoor fan is less than the lowest rotating speed value of the indoor fan and the total running time is longer than the maximum running time, exiting the high-temperature sterilization mode.
V3 is less than Vmin, and t is more than or equal to tmax, the high-temperature sterilization mode is exited.
Step S104: and after the initial cycle is finished, determining a second running cycle according to the actual values of a plurality of system running parameters, and continuing to run the high-temperature sterilization mode based on the second running cycle.
The high-temperature sterilization mode performs sterilization operation based on an initial period in a reciprocating manner, and ideally, the high-temperature sterilization mode can cover the whole operation range and can perform sterilization operation according to the initial period continuously as long as the high-temperature sterilization mode is used. However, for safety and stability, the air conditioner has a self-protection mode based on reliability, such as exhaust protection, current protection, pressure protection, etc. After entering the self-protection mode, the frequency of the compressor and/or the rotating speed of the indoor fan can be adjusted according to the self-protection mode, so that the frequency of the compressor and/or the rotating speed of the indoor fan in the initial period of high-temperature sterilization are possibly inconsistent, the high-temperature sterilization mode is interrupted, and the high-temperature sterilization mode cannot really cover the whole operation range.
In this embodiment, after the initial period is completed, a second operation period is determined according to actual values of a plurality of system operation parameters, and the high-temperature sterilization mode is continuously operated based on the second operation period. The system operating parameters include current, exhaust, pressure, etc. Different high-temperature sterilization cycles are formulated according to different conditions, when the conditions of exhaust protection, current protection, pressure protection, defrosting and the like appear in the system, the high-temperature sterilization cycle is properly prolonged, the high-temperature sterilization effect is ensured, and the operation range of high-temperature sterilization coverage is enlarged.
According to the scheme, after the high-temperature sterilization mode is started, an initial period is started; if the outdoor heat exchanger is determined to be in a frosting state, reducing the rotating speed of the indoor fan and/or the frequency of the compressor according to the first descending gradient to obtain the rotating speed of a second indoor fan and/or the frequency of the second compressor; after the first time period is operated based on the second indoor fan rotating speed and/or the second compressor frequency, reducing the second indoor fan rotating speed and/or the second compressor frequency based on the indoor heat exchanger tube temperature so as to maintain the high-temperature sterilization state of the indoor heat exchanger; and after the initial cycle is finished, determining a second running cycle according to the actual values of a plurality of system running parameters, and continuing to run the high-temperature sterilization mode based on the second running cycle. Therefore, after the high-temperature sterilization mode is started, the frequency of the compressor and the rotating speed of the indoor fan are controlled based on the frosting state of the outdoor heat exchanger, the operation period of high-temperature sterilization is adjusted based on the actual value of the system operation parameter, the high-temperature sterilization of the air conditioner is realized, and the operation range covered by the high-temperature sterilization is enlarged.
A second embodiment of the present invention is proposed based on the first embodiment described above with reference to fig. 2. Referring to FIG. 3, FIG. 3 is a flow chart of a high temperature sterilization control method according to a second embodiment of the present invention.
After the initial period is finished, the step of determining a second operation period according to the actual values of the plurality of system operation parameters comprises the following steps:
step S201: after the initial period is finished, detecting actual values of a plurality of system operation parameters;
and acquiring the current operation time length based on the time point of starting the high-temperature sterilization mode and the current time point. And if the current running time is equal to the initial period, judging that the running of the initial period is finished.
After the initial period of operation is completed, actual values of a plurality of system operation parameters are detected, and the system operation parameters in this embodiment refer to dimensions that affect the stability of the air conditioning system, including current and exhaust. In other embodiments, pressure, defrost, etc. dimensions may also be included.
Step S202: determining the second operation period based on the actual values of the plurality of system operation parameters and the magnitude of the corresponding threshold.
In the present embodiment, the threshold values corresponding to the several system operation parameters, such as the current threshold value and the exhaust threshold value, are set empirically, and generally, the current threshold value may be a current maximum value and the exhaust threshold value may be an exhaust maximum value.
Specifically, the step S202: the step of determining the second operation period based on the actual values of the plurality of system operation parameters and the magnitude of the corresponding threshold comprises:
step S202 a: respectively comparing the actual values of the plurality of system operating parameters with the corresponding threshold values;
in this embodiment, the several system operating parameters are determined as current and exhaust. The actual current value I is compared with the current threshold value Imax, and the actual exhaust gas value P is compared with the exhaust gas threshold value Pmax.
Step S202 b: if the actual values of the system operation parameters are all smaller than the corresponding threshold values and the outdoor heat exchanger is judged to be in the defrosting state, the duration of increasing the first gradient in the initial period is determined as a second operation period
And if the actual current value I is smaller than the current threshold Imax and the actual exhaust P value is smaller than the exhaust threshold Pmax, further judging whether the outdoor heat exchanger is in a defrosting state.
In this embodiment, the current state of the outdoor heat exchanger is determined according to the temperature of the outdoor heat exchanger tube, and if the difference between the temperature of the outdoor heat exchanger tube and the lowest temperature of the outdoor heat exchanger tube is greater than or equal to a defrosting temperature set value, it is determined that the outdoor heat exchanger is in a defrosting state.
If the outdoor heat exchanger is in a defrosting state, determining a second operation period tz as an initial period t0 plus a first gradient duration Δ t1, namely tz = t0+ Δ t 1.
Step S202 c: and if the actual values of the plurality of system operation parameters are not all smaller than the corresponding threshold values, determining that the initial period is increased by a second gradient duration as the second operation period.
If the actual values of the plurality of system operating parameters are not all smaller than the corresponding threshold values, that is, if one or more actual values of the system operating parameters are greater than or equal to the corresponding threshold values, it is determined that the outdoor heat exchanger is not in a defrosting state, and a second operating period tz is determined as an initial period t0 plus a second gradient duration Δ t2, that is, tz = t0 plus Δ t 2.
According to the scheme, after the initial period is finished, the actual values of a plurality of system operation parameters are detected; determining the second operation period based on the actual values of the plurality of system operation parameters and the magnitude of the corresponding threshold. Therefore, the operation period is adjusted according to the system operation parameters, and the operation range of high-temperature sterilization coverage is enlarged.
In order to achieve the above object, the present invention also provides a high temperature sterilization control apparatus, including:
the judgment module 10 is used for entering an initial period after the high-temperature sterilization mode is started;
the first reducing module 20 is configured to reduce the indoor fan rotation speed and/or the compressor frequency according to a first reduction gradient to obtain a second indoor fan rotation speed and/or a second compressor frequency if it is determined that the outdoor heat exchanger is in a frosting state;
a second reducing module 30, configured to reduce the second indoor fan speed and/or the second compressor frequency based on the indoor heat exchanger tube temperature after operating for the first duration based on the second indoor fan speed and/or the second compressor frequency, so as to maintain a high-temperature sterilization state of the indoor heat exchanger;
and the determining module 40 is configured to determine a second operation period according to actual values of a plurality of system operation parameters after the initial period is completed, and continue to operate the high-temperature sterilization mode based on the second operation period.
Further, the determining module includes:
the detection unit is used for detecting the actual values of a plurality of system operation parameters after the initial period is finished;
and the determining unit is used for determining the second operation period based on the actual values of the plurality of system operation parameters and the size of the corresponding threshold value.
Further, the determining module includes:
the first comparison unit is used for respectively comparing the actual values of the plurality of system operation parameters with the corresponding threshold values;
the first judgment unit is used for determining that the initial period is increased by a first gradient duration to be a second operation period if the actual values of the plurality of system operation parameters are all smaller than the corresponding threshold values and the outdoor heat exchanger is judged to be in a defrosting state;
and the second determining unit is used for determining that the initial period is increased by a second gradient duration as the second operating period if the actual values of the plurality of system operating parameters are not all smaller than the corresponding threshold values.
Further, the determination module includes:
the first obtaining unit is used for recording the temperature of the outdoor heat exchanger tube after the outdoor heat exchanger is in an easily frosted state, and obtaining the lowest temperature of the outdoor heat exchanger tube within a preset time;
the first judging unit is used for judging that the outdoor heat exchanger is in a frosting state if the difference value between the temperature of the outdoor heat exchanger tube and the lowest temperature of the outdoor heat exchanger tube is greater than or equal to a frosting state set value;
and the second judging unit is used for judging that the outdoor heat exchanger is not in the frosting state if the difference value between the temperature of the outdoor heat exchanger tube and the lowest temperature of the outdoor heat exchanger tube is less than the frosting state set value.
Further, the second lowering module includes:
the second acquisition unit is used for acquiring the temperature of the indoor heat exchanger tube and comparing the temperature of the indoor heat exchanger tube with the temperature threshold value of the indoor heat exchanger tube;
a first obtaining unit, configured to reduce or maintain the second compressor frequency according to a second frequency decreasing gradient if the indoor heat exchanger tube temperature is greater than or equal to the indoor heat exchanger tube temperature threshold, and obtain a third compressor frequency;
the second comparison unit is used for comparing the third compressor frequency with the lowest value of the compressor frequency and comparing the total operation time length with the maximum operation time length;
the first exit unit is used for exiting the high-temperature sterilization mode if the frequency of the third compressor is less than the lowest value of the frequency of the compressor and the total operation time length is greater than or equal to the maximum operation time length;
a first execution unit, configured to execute the following steps if the third compressor frequency is greater than or equal to the lowest compressor frequency value and the total operation duration is less than the maximum operation duration: operating for a first duration based on the second indoor fan speed and/or the second compressor frequency.
The second acquiring unit further includes:
a second obtaining unit, configured to gradually reduce the rotation speed of the second indoor fan according to a second wind speed reduction gradient to obtain a third indoor fan rotation speed if the temperature of the indoor heat exchanger tube is less than the temperature threshold of the indoor heat exchanger tube;
and the second execution unit is used for executing the steps if the rotating speed of the third indoor fan is greater than or equal to the lowest rotating speed value of the indoor fan and the total running time is less than the maximum running time: operating for a first duration based on the second indoor fan speed and/or the second compressor frequency;
and the second quitting unit is used for quitting the high-temperature sterilization mode if the rotating speed of the third indoor fan is less than the lowest rotating speed value of the indoor fan and the total running time is longer than the maximum running time.
Further, the first obtaining unit further includes:
and the third judging unit is used for acquiring the ambient temperature, and if the ambient temperature is lower than the frosting-prone temperature set value, judging that the outdoor heat exchanger is in a frosting-prone state.
Further, the third determination unit includes:
the first detection subunit is used for detecting the outdoor temperature and comparing the outdoor temperature with a first frosting-prone temperature set value;
the second detection subunit is used for detecting the indoor temperature if the outdoor temperature is less than or equal to the first frosting-prone temperature, and comparing the indoor temperature with the second frosting-prone temperature set value;
and the judging subunit is used for judging that the outdoor heat exchanger is in an easily frosted state if the indoor temperature is less than or equal to the second easily frosted temperature set value.
In addition, an embodiment of the present invention further provides a computer storage medium, where a high temperature sterilization control program is stored on the computer storage medium, and when the high temperature sterilization control program is executed by a processor, the steps of the high temperature sterilization control method are implemented, which are not described herein again.
Compared with the prior art, the high-temperature sterilization control method, the device, the air conditioner and the storage medium provided by the invention have the advantages that the method comprises the steps of entering an initial period after a high-temperature sterilization mode is started; if the outdoor heat exchanger is determined to be in a frosting state, reducing the rotating speed of the indoor fan and/or the frequency of the compressor according to the first descending gradient to obtain the rotating speed of a second indoor fan and/or the frequency of the second compressor; after the first time period is operated based on the second indoor fan rotating speed and/or the second compressor frequency, reducing the second indoor fan rotating speed and/or the second compressor frequency based on the indoor heat exchanger tube temperature so as to maintain the high-temperature sterilization state of the indoor heat exchanger; and after the initial cycle is finished, determining a second running cycle according to the actual values of a plurality of system running parameters, and continuing to run the high-temperature sterilization mode based on the second running cycle. Therefore, after the high-temperature sterilization mode is started, the frequency of the compressor and the rotating speed of the indoor fan are controlled based on the frosting state of the outdoor heat exchanger, the operation period of high-temperature sterilization is adjusted based on the actual value of the system operation parameter, the high-temperature sterilization of the air conditioner is realized, and the operation range covered by the high-temperature sterilization is enlarged.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for causing a terminal device to execute the method according to the embodiments of the present invention.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structures or flow transformations made by the present specification and drawings, or applied directly or indirectly to other related arts, are included in the scope of the present invention.

Claims (11)

1. A method for controlling high-temperature sterilization, the method comprising:
entering an initial period after starting a high-temperature sterilization mode;
if the outdoor heat exchanger is determined to be in a frosting state, reducing the rotating speed of the indoor fan and/or the frequency of the compressor according to the first descending gradient to obtain the rotating speed of a second indoor fan and/or the frequency of the second compressor;
after the first time period is operated based on the second indoor fan rotating speed and/or the second compressor frequency, reducing the second indoor fan rotating speed and/or the second compressor frequency based on the indoor heat exchanger tube temperature so as to maintain the high-temperature sterilization state of the indoor heat exchanger;
and after the initial period is finished, determining a second operation period according to actual values of a plurality of system operation parameters, and continuously operating the high-temperature sterilization mode based on the second operation period, wherein the plurality of system operation parameters comprise dimensions which can influence the stability of the air conditioning system.
2. The method of claim 1, wherein determining a second operating period based on actual values of a plurality of system operating parameters after the initial period has been completed comprises:
after the initial period is finished, detecting actual values of a plurality of system operation parameters;
determining the second operation period based on the actual values of the plurality of system operation parameters and the magnitude of the corresponding threshold.
3. The method of claim 2, wherein the step of determining the second operational period based on actual values of the number of system operational parameters and the magnitude of the corresponding threshold comprises:
respectively comparing the actual values of the plurality of system operating parameters with the corresponding threshold values;
if the actual values of the plurality of system operation parameters are all smaller than the corresponding threshold values and the outdoor heat exchanger is judged to be in the defrosting state, increasing the first gradient duration of the initial period to determine a second operation period;
and if the actual values of the plurality of system operation parameters are not all smaller than the corresponding threshold values, determining that the initial period is increased by a second gradient duration as the second operation period.
4. The method of claim 1, wherein the step of determining that the outdoor heat exchanger is in a frosted condition comprises:
recording the temperature of the outdoor heat exchanger tube after the outdoor heat exchanger is in an easily frosted state, and acquiring the lowest temperature of the outdoor heat exchanger tube within a preset time;
if the difference value between the temperature of the outdoor heat exchanger tube and the lowest temperature of the outdoor heat exchanger tube is greater than or equal to a frosting state set value, judging that the outdoor heat exchanger is in a frosting state;
and if the difference value between the temperature of the outdoor heat exchanger tube and the lowest temperature of the outdoor heat exchanger tube is smaller than the frosting state set value, judging that the outdoor heat exchanger is not in the frosting state.
5. The method of claim 1, wherein the step of reducing the second indoor fan speed and/or second compressor frequency based on indoor heat exchanger tube temperature comprises:
acquiring the temperature of the indoor heat exchanger tube, and comparing the temperature of the indoor heat exchanger tube with the temperature threshold value of the indoor heat exchanger tube;
if the indoor heat exchanger tube temperature is greater than or equal to the indoor heat exchanger tube temperature threshold, reducing or maintaining the second compressor frequency according to a second frequency reduction gradient to obtain a third compressor frequency;
comparing the third compressor frequency with the lowest value of the compressor frequency, and comparing the total operation time length with the maximum operation time length;
if the third compressor frequency is smaller than the lowest compressor frequency value and the total operation time length is greater than or equal to the maximum operation time length, exiting the high-temperature sterilization mode;
if the third compressor frequency is greater than or equal to the lowest compressor frequency value and the total operation duration is less than the maximum operation duration, executing the following steps: operating for a first duration based on the second indoor fan speed and/or the second compressor frequency.
6. The method of claim 5, wherein the step of obtaining the indoor heat exchanger tube temperature and comparing the indoor heat exchanger tube temperature to an indoor heat exchanger tube temperature threshold value is further followed by:
if the temperature of the indoor heat exchanger tube is smaller than the temperature threshold of the indoor heat exchanger tube, gradually reducing the rotating speed of the second indoor fan according to a second wind speed reduction gradient to obtain the rotating speed of a third indoor fan;
if the rotating speed of the third indoor fan is greater than or equal to the lowest rotating speed value of the indoor fan, and the total running time is less than the maximum running time, executing the following steps: operating for a first duration based on the second indoor fan speed and/or the second compressor frequency;
and if the rotating speed of the third indoor fan is less than the lowest rotating speed value of the indoor fan and the total running time is longer than the maximum running time, exiting the high-temperature sterilization mode.
7. The method of claim 4, wherein the step of recording the temperature of the outdoor heat exchanger tubes after the outdoor heat exchanger is in the frost prone state, and the step of obtaining the lowest temperature of the outdoor heat exchanger tubes within the preset time period further comprises:
and acquiring the ambient temperature, and if the ambient temperature is lower than the frosting-prone temperature set value, judging that the outdoor heat exchanger is in a frosting-prone state.
8. The method of claim 7, wherein the ambient temperature comprises an outdoor temperature and an indoor temperature;
the step of obtaining the ambient temperature, and if the ambient temperature is lower than the frosting-prone temperature set value, determining that the outdoor heat exchanger is in a frosting-prone state comprises the following steps:
detecting the outdoor temperature, and comparing the outdoor temperature with a first frost-prone temperature set value;
if the outdoor temperature is less than or equal to the first frosting-prone temperature set value, detecting the indoor temperature, and comparing the indoor temperature with a second frosting-prone temperature set value;
and if the indoor temperature is less than or equal to the second frosting-prone temperature set value, judging that the outdoor heat exchanger is in a frosting-prone state.
9. A high-temperature sterilization control apparatus, characterized in that the apparatus comprises:
the starting module is used for entering an initial period after the high-temperature sterilization mode is started;
the first reduction module is used for determining that the outdoor heat exchanger is in a frosting state, and reducing the rotating speed of the indoor fan and/or the frequency of the compressor according to the first reduction gradient to obtain the rotating speed of a second indoor fan and/or the frequency of the second compressor;
a second reduction module, configured to reduce the second indoor fan speed and/or the second compressor frequency based on an indoor heat exchanger tube temperature after operating for a first duration based on the second indoor fan speed and/or the second compressor frequency, so as to maintain a high-temperature sterilization state of the indoor heat exchanger;
and the determining module is used for determining a second operation period according to actual values of a plurality of system operation parameters after the initial period is finished, and continuing to operate the high-temperature sterilization mode based on the second operation period, wherein the plurality of system operation parameters comprise dimensions which can influence the stability of the air conditioning system.
10. An air conditioner, characterized in that the air conditioner comprises a processor, a memory, and a high temperature sterilization control program stored in the memory, the high temperature sterilization control program, when executed by the processor, implementing the steps of the high temperature sterilization control method according to any one of claims 1 to 8.
11. A computer storage medium, characterized in that the computer storage medium has stored thereon a high-temperature sterilization control program that, when executed by a processor, implements the steps of the high-temperature sterilization control method according to any one of claims 1 to 8.
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CN109297101A (en) * 2018-08-21 2019-02-01 珠海格力电器股份有限公司 Air conditioner method for disinfection, system and air conditioner
CN109882986A (en) * 2018-12-27 2019-06-14 珠海格力电器股份有限公司 Control method, device and the movable air conditioner of movable air conditioner
CN110207313A (en) * 2019-06-26 2019-09-06 广东美的制冷设备有限公司 Air conditioner and its air conditioning control method, control device and readable storage medium storing program for executing
CN110470070A (en) * 2019-08-05 2019-11-19 南京天加环境科技有限公司 A kind of air-conditioning automatically cleaning control method

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