CN111692727B - Air conditioner and sterilization control method thereof - Google Patents

Air conditioner and sterilization control method thereof Download PDF

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Publication number
CN111692727B
CN111692727B CN202010495466.9A CN202010495466A CN111692727B CN 111692727 B CN111692727 B CN 111692727B CN 202010495466 A CN202010495466 A CN 202010495466A CN 111692727 B CN111692727 B CN 111692727B
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temperature
air conditioner
sterilization
heat exchanger
compressor
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CN111692727A (en
Inventor
徐振坤
席战利
黄剑云
唐亚林
李玉
毕然
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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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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F24F11/67—Switching between heating and cooling modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control 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
    • F24F11/77—Control 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
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • 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
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F24F11/70—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
    • F24F2140/10—Pressure
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a sterilization control method of an air conditioner and the air conditioner, wherein the control method comprises the following steps: controlling the air conditioner to enter a high-temperature sterilization mode and perform heating operation; detecting and judging whether the pressure ratio of the high pressure to the low pressure is greater than or equal to a preset ratio or whether the pressure difference is greater than or equal to a preset difference, and if the pressure ratio is greater than or equal to the preset ratio or the pressure difference is greater than or equal to the preset difference, at least one of increasing the rotating speed of the outdoor fan, reducing the frequency of the compressor, increasing the opening of the throttling device and increasing the rotating speed of the indoor fan is performed; if the pressure ratio is smaller than the preset ratio or the pressure difference is smaller than the preset difference value, whether the temperature of the indoor heat exchanger is lower than the first sterilization temperature or not is judged, and if yes, at least one of the air guide piece is adjusted to reduce the area of the air outlet, the rotating speed of the indoor fan is reduced, the frequency of the compressor is improved, the opening of the throttling device is reduced, the rotating speed of the outdoor fan is improved, and the electric auxiliary heat is started to improve the temperature of the indoor heat exchanger. The control method of the invention has good sterilization effect and can improve the working reliability of the air conditioner.

Description

Air conditioner and sterilization control method thereof
Technical Field
The invention relates to the technical field of electric appliances, in particular to a sterilization control method of an air conditioner and the air conditioner.
Background
With the increase of health consciousness of people, people have more and more requirements on the functions of air conditioners, for example, the air conditioners in the related art have the functions of humidification, purification and the like. However, in the long-term operation process of the air conditioner, a large amount of bacteria and viruses can be accumulated and hidden on the indoor heat exchanger, and the bacteria and the viruses can not resist high temperature, so that data are displayed at the temperature of more than 56 ℃ for a certain time, some bacteria harmful to human bodies can be killed, and most viruses can be inactivated. When the air conditioner heats, the indoor heat exchanger is in a high-temperature state, but the temperature of the indoor heat exchanger is about 40-50 ℃, and sterilization and disinfection are difficult to realize.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a sterilization control method of an air conditioner.
The invention also provides an air conditioner working by using the sterilization control method.
The sterilization control method of the air conditioner according to the embodiment of the invention comprises the following steps:
controlling the air conditioner to enter a high-temperature sterilization mode;
controlling the heating operation of the air conditioner;
detecting the high pressure and the low pressure of the air conditioner, judging whether the pressure ratio of the high pressure to the low pressure is greater than or equal to a preset ratio or judging whether the pressure difference between the high pressure and the low pressure is greater than or equal to a preset difference, and if the pressure ratio is greater than or equal to the preset ratio or the pressure difference is greater than or equal to the preset difference, at least one of increasing the rotating speed of an outdoor fan, reducing the frequency of a compressor, increasing the opening of a throttling device and increasing the rotating speed of an indoor fan is carried out;
if the pressure ratio is smaller than the preset ratio or the pressure difference is smaller than the preset difference, detecting the temperature of the indoor heat exchanger and judging whether the temperature of the indoor heat exchanger is lower than a first sterilization temperature,
if so, adjusting the angle of the air guide piece to reduce the air outlet area of the air outlet, reducing the rotating speed of the indoor fan, improving the frequency of the compressor, reducing the opening of the throttling device, improving the rotating speed of the outdoor fan and starting at least one of electric auxiliary heating so as to improve the temperature of the indoor heat exchanger.
According to the air conditioner of the embodiment of the invention, after the air conditioner enters a high-temperature sterilization mode, the temperature of the indoor heat exchanger is detected and whether the sterilization condition is met is judged, if the temperature of the indoor heat exchanger is not met, at least one of the air outlet area, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotating speed of the outdoor fan and the electric auxiliary heat is regulated by regulating the air guide piece of the air conditioner, so that the sterilization and disinfection can be realized, and before the judgment that the sterilization condition is met, whether the pressure ratio or the pressure difference of the air conditioner meets the condition that the compressor stably operates is judged, if the pressure ratio or the pressure difference does not meet the condition that the compressor stably operates is judged, at least one of the rotating speed of the outdoor fan, the frequency of the compressor, the opening degree of the throttling device and the rotating speed of the indoor fan is regulated, the air conditioner can be better ensured to operate in a reliable range during the sterilization in a low-temperature environment, the damage of the compressor when the compressor is operated under the severe working condition of low-temperature environment (such as ultra-low temperature of minus 7 ℃ and below) sterilization is avoided.
According to some embodiments of the invention, the first sterilization temperature is in a range of 56-94 ℃.
According to some embodiments of the invention, the predetermined ratio ranges from 1 to 18.
According to some embodiments of the invention, the value range of the preset difference is 0.5-4.1 MPa.
According to some embodiments of the present invention, the high temperature sterilization mode is exited after at least one of adjusting the angle of the air guide to reduce the air outlet area of the air outlet, reducing the rotation speed of the indoor fan, increasing the frequency of the compressor, reducing the opening degree of the throttling device, increasing the rotation speed of the outdoor fan, and turning on the electric auxiliary heating is performed, and then the timer is started until the first set time is operated.
According to some embodiments of the invention, the first setting time is in a range of 30-90 min.
According to some embodiments of the present invention, while determining whether the temperature of the indoor heat exchanger is lower than a first sterilization temperature, determining whether the temperature of the indoor heat exchanger is higher than a second sterilization temperature,
if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, adjusting the angle of the air guide piece to increase at least one of the air outlet area of the air outlet, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotating speed of the outdoor fan and the gradual exit of the outdoor fan without wind feeling so as to reduce the temperature of the indoor heat exchanger, wherein the second sterilization temperature is higher than the first sterilization temperature.
In some embodiments of the present invention, the second sterilization temperature ranges from 56 ℃ to 96 ℃.
In some embodiments of the invention, the difference between the second sterilization temperature and the first sterilization temperature is not less than 0.5 ℃.
In some embodiments of the present invention, the difference between the second sterilization temperature and the first sterilization temperature ranges from 1 to 3 ℃.
In some embodiments of the present invention, the air guide is adjusted in angle to increase an air outlet area of the air outlet, increase a rotation speed of the indoor fan, decrease a frequency of the compressor, increase an opening degree of the throttling device, and decrease a rotation speed of the outdoor fan, and then timing is started until the high-temperature sterilization mode is exited after a second set time.
In some embodiments of the invention, the second setting time is within a range of 10-60 min.
In some embodiments of the present invention, if the temperature of the indoor heat exchanger is determined to be between the first sterilization temperature and the second sterilization temperature, the current operation state of the air conditioner is maintained, and the high-temperature sterilization mode is exited after the time is counted until the air conditioner operates for a third set time.
In some embodiments of the present invention, a value of the third setting time is greater than 10 min.
According to some embodiments of the present invention, the adjustment of any one of the angle of the air guide, the rotational speed of the indoor fan, the frequency of the compressor, the opening degree of the throttle device, and the rotational speed of the outdoor fan is adjusted stepwise in accordance with an adjustment step, and the adjustment step of increasing the system pressure is smaller than the adjustment step of decreasing the system pressure in the process of adjusting any one of the angle of the air guide, the rotational speed of the indoor fan, the frequency of the compressor, the opening degree of the throttle device, and the rotational speed of the outdoor fan.
According to some embodiments of the present invention, the adjustment rule of any one of the angle of the air guide, the rotational speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, and the rotational speed of the outdoor fan is one of a first adjustment rule, a second adjustment rule, a third adjustment rule, and a fourth adjustment rule, wherein the first adjustment rule is step-by-step adjustment according to a step size as an adjustment step, the second adjustment rule is step-by-step adjustment according to a product of a heat exchanger temperature difference value and a gain coefficient as an adjustment step, the third adjustment rule is step-by-step adjustment according to a percentage of a current value as an adjustment step, the fourth adjustment rule is step-by-step adjustment according to a percentage of a rated value as an adjustment step, and when a system pressure is increased, the heat exchanger temperature difference value is an absolute value of a difference value between a current temperature of the indoor heat exchanger and a first sterilization temperature, when the system pressure is reduced, the heat exchanger temperature difference value refers to an absolute value of a difference value between the current temperature of the indoor heat exchanger and the second sterilization temperature.
According to some embodiments of the present invention, after the air conditioner operates in the heating state for a fourth set time, it is determined whether a pressure ratio of the high pressure to the low pressure is greater than or equal to a preset ratio or a pressure difference between the high pressure and the low pressure is greater than or equal to a preset difference.
In some embodiments of the invention, the value range of the fourth setting time is 1-60 min.
In some embodiments of the invention, when the outdoor temperature is above 15 ℃, the value range of the fourth set time is 3-10 min; when the outdoor temperature is 5-15 ℃, the value range of the fourth set time is 5-15 min; and when the outdoor temperature is below 5 ℃, the value range of the fourth set time is 8-20 min.
In some embodiments of the present invention, the air conditioner enters the high-temperature sterilization mode while detecting whether a current operation state of the air conditioner is in a heating state,
if so, the air conditioner keeps heating operation, and the value range of the fourth set time is 1-30 min;
if not, controlling the air conditioner to be switched to a heating state for operation, wherein the value range of the fourth set time is 1-60 min.
In some embodiments of the present invention, before determining whether a pressure ratio of the high pressure and the low pressure is greater than or equal to a preset ratio or determining whether a pressure difference between the high pressure and the low pressure is greater than or equal to a preset difference, determining whether the air conditioner is operated for the fourth set time in a heating state,
if yes, judging whether the pressure ratio of the high pressure to the low pressure is larger than or equal to a preset ratio or judging whether the pressure difference between the high pressure and the low pressure is larger than or equal to a preset difference value;
if not, judging whether the temperature of the indoor heat exchanger is greater than or equal to a third sterilization temperature or judging whether the temperature change rate of the indoor heat exchanger is greater than or equal to a set change rate, wherein the third sterilization temperature is greater than the first sterilization temperature,
if the temperature of the indoor heat exchanger is greater than or equal to a third sterilization temperature or the temperature change rate of the indoor heat exchanger is greater than or equal to a set change rate, at least one of increasing the rotating speed of the indoor fan, reducing the frequency of the compressor and increasing the throttling device is performed to reduce the temperature of the indoor heat exchanger or reduce the temperature change rate of the indoor heat exchanger; and if the temperature of the indoor heat exchanger is lower than the third sterilization temperature or the temperature change rate of the indoor heat exchanger is lower than the set change rate, continuously judging whether the air conditioner operates for the fourth set time in the heating state.
In some embodiments of the invention, the set change rate ranges from 0.5 ℃/min to 5 ℃/min.
According to some embodiments of the present invention, during the whole process of the air conditioner in the high-temperature sterilization mode, the temperature of the indoor heat exchanger is detected in real time, and whether the current temperature of the indoor heat exchanger is greater than a protection temperature is judged, if yes, the compressor of the air conditioner is stopped.
In some embodiments of the present invention, the protection temperature is in a range of 62-96 ℃.
In some embodiments of the invention, the compressor is restarted after it has been shutdown for a set shutdown time; or continuously detecting the temperature of the indoor heat exchanger after the compressor is stopped, judging whether the temperature of the indoor heat exchanger is lower than a recovery temperature, and restarting the compressor if the temperature of the indoor heat exchanger is lower than the recovery temperature.
In some embodiments of the invention, the set shutdown time ranges from 1 min to 30 min.
In some embodiments of the invention, the recovery temperature is no greater than 48 ℃.
In some embodiments of the present invention, before the compressor is restarted, it is determined whether the number of times of shutdown of the compressor is greater than a maximum number of times of shutdown, and if so, the air conditioner is controlled to exit the high-temperature sterilization mode.
In some embodiments of the present invention, the maximum number of stoppages is in a range of 1-30.
According to some embodiments of the present invention, when the air conditioner enters the high temperature sterilization mode and the air conditioner is operated for heating, the initial angle of the air guide is adjusted to be within the sterilization angle interval.
According to some embodiments of the present invention, when the air conditioner enters the high temperature sterilization mode and the air conditioner is in heating operation, the initial value of the rotation speed of the indoor fan, the initial value of the frequency of the compressor, the initial value of the opening degree of the throttling device, and the initial value of the rotation speed of the outdoor fan do not exceed the maximum interval value corresponding to the current outdoor temperature.
According to some embodiments of the present invention, the air conditioner starts to count the time when entering the high temperature sterilization mode and exits the high temperature sterilization mode after running for a fifth setting time; or the air conditioner exits the high-temperature sterilization mode after receiving the signal for exiting the high-temperature sterilization mode.
According to some embodiments of the invention, a value of the fifth setting time is greater than 10 min.
In some embodiments of the invention, when the outdoor temperature is above 15 ℃, the value range of the fifth set time is 35-50 min; when the outdoor temperature is 5-15 ℃, the value range of the fifth set time is 40-70 min; and when the outdoor temperature is below 5 ℃, the value range of the fifth set time is 50-90 min.
According to some embodiments of the present invention, in the whole high-temperature sterilization mode of the air conditioner, the angle of the air guide is always within the sterilization angle interval, and when the air guide is located within the sterilization angle interval, the angle β between the air guide and the vertical upward direction ranges from 0 ° to 120 °.
In some embodiments of the present invention, when the air conditioner is a split floor type air conditioner, a value of β is in a range of 0 to 75 °.
According to some embodiments of the invention, the high-temperature sterilization mode further comprises an initialization process for the air conditioner when entering the high-temperature sterilization mode, the initialization process comprising: initializing the rotating speed of an indoor fan according to the indoor temperature T0, wherein the initial rotating speed R0 of the indoor fan is positively correlated with the indoor temperature or the initial rotating speed R0 of the indoor fan is set to be a low-grade wind speed; initializing the rotating speed of the outdoor fan according to the outdoor temperature T4, wherein the initial rotating speed W0 of the outdoor fan is inversely related to the outdoor temperature T4; initializing a compressor frequency according to the outdoor temperature T4, wherein the compressor initial frequency F0 is inversely related to the outdoor temperature T4; initializing the opening degree of the throttling element according to the outdoor temperature T4, wherein the initial opening degree P0 of the throttling element is positively correlated with the outdoor temperature T4; initializing the air guide angle of the air conditioner to a sterilization angle.
According to the air conditioner provided by the embodiment of the invention, the air conditioner is provided with an air inlet and an air outlet, the air conditioner comprises an indoor fan, an indoor heat exchanger, a throttling device, a compressor, an outdoor fan, an outdoor heat exchanger and a control module, wherein the compressor, the outdoor heat exchanger, the throttling device and the indoor heat exchanger are sequentially connected and form a refrigerant cycle, a rotatable air guide piece is arranged at the air outlet, the working mode of the air conditioner comprises a high-temperature sterilization mode, and after the air conditioner enters the high-temperature sterilization mode, the control module controls the air conditioner to work according to the sterilization control method as claimed in any one of claims 1-36.
According to the air conditioner of the embodiment of the invention, after the air conditioner enters a high-temperature sterilization mode, the temperature of the indoor heat exchanger is detected and whether the sterilization condition is met is judged, if the temperature of the indoor heat exchanger is not met, at least one of the air outlet area, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotating speed of the outdoor fan and the electric auxiliary heat is regulated by regulating the air guide piece of the air conditioner, so that the sterilization and disinfection can be realized, and before the judgment that the sterilization condition is met, whether the pressure ratio or the pressure difference of the air conditioner meets the condition that the compressor stably operates is judged, if the pressure ratio or the pressure difference does not meet the condition that the compressor stably operates is judged, at least one of the rotating speed of the outdoor fan, the frequency of the compressor, the opening degree of the throttling device and the rotating speed of the indoor fan is regulated, the air conditioner can be better ensured to operate in a reliable range during the sterilization in a low-temperature environment, the damage of the compressor when the compressor is operated under the severe working condition of low-temperature environment (such as ultra-low temperature of minus 7 ℃ and below) sterilization is avoided.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a control flowchart of a sterilization control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a control flowchart of a sterilization control method of an air conditioner according to another embodiment of the present invention;
fig. 3 is a control flowchart of a sterilization control method of an air conditioner according to still another embodiment of the present invention;
fig. 4 is a control flowchart of a sterilization control method of an air conditioner according to still another embodiment of the present invention;
fig. 5 is a control flowchart of a sterilization control method of an air conditioner according to still another embodiment of the present invention;
fig. 6 is a schematic view illustrating a compressor off protection control flow of a sterilization control method of an air conditioner according to some embodiments of the present invention;
fig. 7 is a schematic view illustrating a control angle of a wind guide of an air conditioner according to some embodiments of the present invention, wherein the air conditioner is a split wall type air conditioner;
fig. 8 is a schematic view illustrating a control angle of a wind guide of an air conditioner according to other embodiments of the present invention, wherein the air conditioner is a split floor type air conditioner;
fig. 9 is a graph of the fourth and fifth set times of the sterilization control method of the air conditioner according to the embodiment of the present invention, as a function of the outdoor temperature;
fig. 10 is a graph of an initial value of a frequency of a compressor of a sterilization control method of an air conditioner according to some embodiments of the present invention with respect to an outdoor temperature;
fig. 11 is a graph of an initial value of a rotation speed of an outdoor fan and an outdoor temperature according to a sterilization control method of an air conditioner according to some embodiments of the present invention;
fig. 12 is a graph of an opening initial value of a throttling device according to a sterilization control method of an air conditioner according to some embodiments of the present invention, against an outdoor temperature;
fig. 13 is a graph of an initial value of the rotation speed of an indoor fan and an indoor temperature according to a sterilization control method of an air conditioner in accordance with an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A sterilization control method of an air conditioner according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 and 3, a sterilization control method of an air conditioner according to an embodiment of the present invention includes:
controlling the air conditioner to enter a high-temperature sterilization mode, and entering the high-temperature sterilization mode after the air conditioner receives a corresponding instruction, wherein the instruction for the air conditioner to enter the sterilization mode can be an instruction actively carried out by a user through a remote controller, and can also be an instruction autonomously carried out by the air conditioner through detecting bacteria;
after the air conditioner enters a high-temperature sterilization mode, controlling the air conditioner to perform heating operation, as shown in fig. 5, if the air conditioner performs heating operation before, keeping the heating operation, and if the air conditioner performs cooling operation or other non-heating operation before, controlling the air conditioner to perform heating operation;
the method comprises the steps of detecting high pressure and low pressure of the air conditioner, judging whether the pressure ratio of the high pressure to the low pressure is larger than or equal to a preset ratio PR or judging whether the pressure difference of the high pressure to the low pressure is larger than or equal to a preset difference PD, if the pressure ratio is larger than or equal to the preset ratio PR or the pressure difference is larger than or equal to the preset difference PD, at least one of increasing the rotating speed of an outdoor fan, reducing the frequency of a compressor, increasing the opening of a throttling device and increasing the rotating speed of an indoor fan can be carried out, the high pressure can be reduced or the low pressure can be increased, therefore, the air conditioner can operate in a reliable range when being sterilized in a low-temperature environment, and damage of the compressor when operating under a severe working condition of sterilization in the low-temperature environment (such as ultralow temperature-7 ℃ and below) is avoided.
The high pressure side of the air conditioner refrigerating system mainly corresponds to the high temperature side, the low pressure side corresponds to the low temperature side, the high pressure side during refrigeration is the outdoor side, and the low pressure side is the indoor side; the high pressure side during heating is the indoor side, and the low pressure side is the outdoor side. The pressure of the air conditioner refrigerating system can be tested by presetting a pressure sensor at the high-pressure side and the low-pressure side, or the corresponding high pressure and low pressure can be obtained by testing the temperatures of the heat exchangers at the high-pressure side and the low-pressure side and looking up a table or converting the table.
When at least one of the outdoor fan rotation speed, the compressor frequency, the throttle opening, and the indoor fan rotation speed is adjusted, one or more of them may be adjusted. Any one of adjusting means of increasing the rotating speed of the outdoor fan, reducing the frequency of the compressor, increasing the opening of the throttling device and increasing the rotating speed of the indoor fan can reduce the pressure ratio and the pressure difference. When one of the rotating speed of the outdoor fan, the frequency of the compressor, the opening of the throttling device and the rotating speed of the indoor fan is adjusted, the rotating speed of the outdoor fan can be only increased, the frequency of the compressor can be reduced, the opening of the throttling device can be only increased, and the rotating speed of the indoor fan can be only increased. When adjusting multiple items of the rotating speed of the outdoor fan, the frequency of the compressor, the opening degree of the throttling device and the rotating speed of the indoor fan, the multiple items can be adjusted simultaneously or sequentially. For example, the rotation speed of the outdoor fan can be increased, the frequency of the compressor can be reduced, and the opening degree of the throttling device can be increased at the same time; for example, the rotation speed of the indoor fan can be sequentially increased, the frequency of the compressor can be reduced, and the opening degree of the throttling device can be sequentially increased.
It is to be understood that the term(s) used herein refers to two or more.
If the pressure ratio is smaller than the preset ratio PR or the pressure difference is smaller than the preset difference PD, detecting the temperature Tx of the indoor heat exchanger and judging whether the temperature Tx of the indoor heat exchanger is lower than the first sterilization temperature T1, wherein the detection of the temperature Tx of the indoor heat exchanger can be carried out in real time in the whole high-temperature sterilization mode operation process, if the temperature Tx of the indoor heat exchanger is judged to be lower than the first sterilization temperature, adjusting the angle of the air guide piece to reduce the air outlet area of the air outlet, reducing the rotating speed of the indoor fan, improving the frequency of the compressor, reducing the opening degree of the throttling device, improving the rotating speed of the outdoor fan and starting at least one of electric auxiliary heating to improve the temperature of the indoor heat exchanger, so that the temperature of the indoor heat exchanger is not lower than the first sterilization temperature, and the sterilization and disinfection effects are achieved.
The air guide piece can be rotatably arranged at an air outlet of the air conditioner, and can open and close the air outlet. Through the rotation of air guide, can be so that air guide is located different angular position to can change the position of the relative air outlet of air guide, with the air-out area of regulation, thereby adjust the air output.
Optionally, the air guide member may be an air guide plate or an air guide louver, and a plurality of air dissipation holes may be formed in the air guide member, through which the air flow may flow out to the indoor space. For example, when the air conditioner is a split wall-mounted air conditioner, the air guide member may be an air guide plate; when the air conditioner is a split floor type air conditioner, the air guide piece can be an air guide shutter.
Wherein, the regulation to the air guide can be through the turned angle who adjusts the air guide to make the air guide rotate towards the direction of closing the air outlet, the area that the air outlet was sheltered from to the increase air guide, thereby can reduce the effective air-out area of air outlet, and then can reduce the air output, just also reduced the calorific loss on the indoor heat exchanger, thereby can be in the short time faster promotion indoor heat exchanger's temperature.
It should be noted that, in the process of adjusting the air guide, no matter what angle position the air guide is in, the air outlet can have the air current to discharge to indoor, so when promoting the temperature of indoor heat exchanger, can guarantee the reliable steady operation of air conditioner, can be to indoor heat of carrying simultaneously, promote indoor temperature. For example, when no air dispersing hole is formed in the air guide, in the process of adjusting the air guide, no matter what angle position the air guide is in, the air guide does not close the air outlet, and the air guide still opens at least a part of the air outlet, so that the air flow can be discharged to the indoor from the air outlet; when the air guide piece is provided with the air dispersion holes, the air guide piece can be in an angle position for closing the air outlet in the process of adjusting the air guide piece, and at the moment, the air flow in the air conditioner is discharged to the indoor from the air dispersion holes of the air guide piece.
Optionally, the first sterilization temperature T1 is in a range of 56-94 ℃. Therefore, most of bacteria and viruses can be effectively killed, and the air conditioner can stably and reliably run in a high-temperature sterilization mode. Wherein, in the R22 refrigerant type air conditioner, the first sterilization temperature T1 is in the range of 56-70 ℃; the R410A and R32 refrigerant type air conditioners have the first sterilization temperature T1 ranging from 56 to 62 ℃, and the R290 refrigerant type air conditioners have the first sterilization temperature T1 ranging from 56 to 94 ℃.
Optionally, the value range of the preset ratio PR is 1-18. Therefore, the air conditioner can be better ensured to operate in a reliable range when the air conditioner is sterilized in a low-temperature environment, and the damage of the compressor when the compressor is operated under the severe working condition of sterilization in the low-temperature environment (such as ultralow temperature of-7 ℃ and below) is avoided. Wherein, the pressure ratio of the single-stage compression system is 1-12, preferably below 7.5, and the pressure ratio of the double-stage compression system is 1-18, preferably below 13.
Optionally, the preset difference PD is in a range of 0.5-4.1 MPa, and preferably below 3.5 MPa. Therefore, the air conditioner can be better ensured to operate in a reliable range when the air conditioner is sterilized in a low-temperature environment, and the damage of the compressor when the compressor is operated under the severe working condition of sterilization in the low-temperature environment (such as ultralow temperature of-7 ℃ and below) is avoided.
The temperature of the indoor heat exchanger can be increased by the adjusting means, so that the temperature of the indoor heat exchanger is not lower than the first sterilization temperature, and bacteria and viruses on the indoor heat exchanger can be effectively killed. And by adjusting the rotating speed of the outdoor fan, the frequency of the compressor, the opening degree of the throttling device and the rotating speed of the indoor fan, the air conditioner can be better ensured to operate in a reliable range when the air conditioner is sterilized in a low-temperature environment, and the damage of the compressor when the air conditioner is operated under the severe working condition of sterilization in the low-temperature environment (such as ultralow temperature of minus 7 ℃ and below) is avoided.
When at least one of the angle of the air guide piece is adjusted to reduce the air outlet area of the air outlet, the rotating speed of the indoor fan is reduced, the frequency of the compressor is improved, the opening degree of the throttling device is reduced, the rotating speed of the outdoor fan is improved, and the electric auxiliary heat is turned on, one or more of the angle of the air guide piece and the rotating speed of the indoor fan can be adjusted. The system pressure of the air conditioner can be increased by any adjusting means of adjusting the angle of the air guide piece to reduce the air outlet area of the air outlet, reducing the rotating speed of the indoor fan, increasing the frequency of the compressor, reducing the opening degree of the throttling device and increasing the rotating speed of the outdoor fan, so that the temperature of the indoor heat exchanger can be increased. The electricity is assisted hot and is opened, and electricity is assisted hot can heat the near air current of indoor heat exchanger, and the air current flows through indoor heat exchanger to can heat indoor heat exchanger, thereby can promote indoor heat exchanger's temperature. When adjusting the air guide, adjust the angle of air guide in order to reduce the air-out area of air outlet for indoor heat exchanger's temperature can obtain certain promotion.
When one of the air guide, the rotation speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotation speed of the outdoor fan and the electric auxiliary heat is adjusted, only the angle of the air guide is adjusted, only the rotation speed of the indoor fan is reduced, only the frequency of the compressor is increased, only the opening degree of the throttling device is reduced, only the rotation speed of the outdoor fan is increased, and only the electric auxiliary heat is turned on.
When adjusting a plurality of items of the air guide, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotating speed of the outdoor fan and the electric auxiliary heat, the adjusting can be carried out simultaneously or sequentially. For example, the rotation speed of the indoor fan can be reduced, the frequency of the compressor can be increased, and the opening degree of the throttling device can be reduced at the same time; for example, the rotation speed of the indoor fan can be sequentially reduced, the frequency of the compressor can be increased, and the opening degree of the throttling device can be reduced.
It is to be understood that the term(s) used herein refers to two or more.
According to the sterilization control method of the air conditioner, after the air conditioner enters a high-temperature sterilization mode, the temperature of the indoor heat exchanger is detected, whether sterilization conditions are met is judged, if the temperature of the indoor heat exchanger is not met, at least one of adjusting the air outlet area, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotating speed of the outdoor fan and electric auxiliary heat is adjusted, the temperature of the indoor heat exchanger can be adjusted to meet the sterilization conditions to achieve sterilization and disinfection, before the judgment that the sterilization conditions are met, whether the pressure ratio or the pressure difference of the air conditioner meets the conditions of stable operation of the compressor is judged, if the pressure ratio or the pressure difference does not meet the conditions of stable operation of the compressor, at least one of adjusting the rotating speed of the outdoor fan, the frequency of the compressor, the opening degree of the throttling device and the rotating speed of the indoor fan is not met, the air conditioner can be better ensured to operate in a reliable range during sterilization in a low-temperature environment, the damage of the compressor when the compressor is operated under the severe working condition of low-temperature environment (such as ultra-low temperature of minus 7 ℃ and below) sterilization is avoided.
In some embodiments of the present invention, as shown in fig. 1 and 3, the air guide is adjusted in angle to reduce the air outlet area of the air outlet, reduce the rotation speed of the indoor fan, increase the frequency of the compressor, reduce the opening degree of the throttling device, increase the rotation speed of the outdoor fan, and start the electric auxiliary heating, and then the high-temperature sterilization mode is started until the high-temperature sterilization mode is exited after the operation for the first set time. Therefore, the running time of the air conditioner at a higher temperature of the indoor heat exchanger can be conveniently calculated, meanwhile, the air conditioner continuously runs within a preset time range, the temperature of the indoor heat exchanger can be guaranteed to be raised to be not lower than a first sterilization temperature, the sterilization time is guaranteed, and the sterilization and disinfection effects can be guaranteed. And moreover, the reliable continuous operation of the air conditioner at a higher temperature of the indoor heat exchanger is realized by controlling a plurality of parameters and judgment conditions to realize sterilization and disinfection, and the high-temperature sterilization mode is quitted after the air conditioner continuously operates for a preset time, so that the problems of compressor damage, service life of electric control components and plastic parts caused by long-term operation under severe working conditions can be reduced or avoided.
Specifically, when at least one of adjusting the angle of the air guide to reduce the air outlet area of the air outlet, reducing the rotating speed of the indoor fan, increasing the frequency of the compressor, reducing the opening degree of the throttling device, increasing the rotating speed of the outdoor fan and turning on the electric auxiliary heat reaches a set value, timing is started until a first set time, and the high-temperature sterilization mode is withdrawn.
For example, when the electric auxiliary heater is turned on and the temperature of the electric auxiliary heater itself reaches a set temperature, the high-temperature sterilization mode is started to be exited until a first set time.
For example, after the temperature of the indoor heat exchanger is judged to be lower than the first sterilization temperature, the angle of the air guide member is adjusted to gradually reduce the air outlet area of the air outlet, therefore, the air output can be gradually reduced, the temperature of the indoor heat exchanger can be stably and gradually improved, the stability and the reliability of the operation of the air conditioner are facilitated, and particularly, after the temperature of the indoor heat exchanger is judged to be lower than the first sterilization temperature, the angle of the air guide piece is adjusted to a first set angle, when the first set angle is reached, the air conditioner can be in normal operation and air outlet, and when the air guide swings and rotates up and down, the first set angle of the air guide can be the upper air outlet limit position when the air conditioner is in normal operation (for example, refer to position a in fig. 7 and 8), and when the angle of the air guide piece is adjusted to a first set angle, timing is started until the air conditioner runs for a first set time, and then the high-temperature sterilization mode is exited. Therefore, when the angle of the air guide piece is adjusted to a first set angle, the temperature of the indoor heat exchanger is improved to a certain extent, and the air conditioner runs for a first set time in a timing point, so that the running time of the air conditioner at the indoor heat exchanger at a higher temperature is conveniently calculated, meanwhile, the air conditioner continuously runs within a preset time range, the temperature of the indoor heat exchanger can be improved to be not lower than a first sterilization temperature, the sterilization time is guaranteed, and the sterilization and disinfection effects can be guaranteed. And moreover, the reliable continuous operation of the air conditioner at a higher temperature of the indoor heat exchanger is realized by controlling a plurality of parameters and judgment conditions to realize sterilization and disinfection, and the high-temperature sterilization mode is quitted after the air conditioner continuously operates for a preset time, so that the problems of compressor damage, service life of electric control components and plastic parts caused by long-term operation under severe working conditions can be reduced or avoided.
For another example, after the temperature of the indoor heat exchanger is judged to be lower than the first sterilization temperature, the rotation speed of the indoor fan is reduced, specifically, after the temperature of the indoor heat exchanger is judged to be lower than the first sterilization temperature, the rotation speed of the indoor fan is adjusted to a first set rotation speed (for example, the value range is 50-700 RPM, preferably 150-450 RPM), and when the first set rotation speed is reached, timing is started until the air conditioner operates for a first set time, and then the high-temperature sterilization mode is exited.
Optionally, the value range of the first set time is 30-90 min. For example, the first setting time can be 30-60 min. Therefore, the sterilization and disinfection effect can be ensured, and meanwhile, the damage of the compressor caused by the long-term operation under severe working conditions, the service life of an electric control component and the deformation problem of a plastic part can be reduced or avoided.
In some embodiments of the present invention, as shown in fig. 1 and 3, while determining whether the temperature Tx of the indoor heat exchanger is lower than the first sterilization temperature T1, it is determined whether the temperature Tx of the indoor heat exchanger is higher than a second sterilization temperature T2, the second sterilization temperature T2 being greater than the first sterilization temperature T1. If the temperature Tx of the indoor heat exchanger is higher than the second sterilization temperature T2, the angle of the air guide piece is adjusted to increase the air outlet area of the air outlet, increase the rotating speed of the indoor fan, reduce the frequency of the compressor, increase the opening degree of the throttling device, reduce the rotating speed of the outdoor fan and gradually quit the air-free feeling, so as to reduce the temperature of the indoor heat exchanger. From this, when judging whether indoor heat exchanger's temperature is less than first sterilization temperature, judge whether indoor heat exchanger's temperature is higher than second sterilization temperature for indoor heat exchanger temperature is not higher than second sterilization temperature T2 and is not less than first sterilization temperature T1, thereby can realize effectively killing the bacterium virus on the indoor heat exchanger, can avoid again simultaneously because the heat exchanger high temperature leads to the reliability reduction of air conditioner operation, thereby can guarantee that the air conditioner operates reliably steadily under the high temperature sterilization mode.
Wherein, the regulation to the air guide can be through the turned angle who adjusts the air guide, so that the air guide rotates towards the direction of opening the air outlet, reduce the area that the air guide sheltered from the air outlet, so that the effective air-out area of air outlet can be increased, and then can increase the air output, just also increased the calorific loss on the indoor heat exchanger, so that can be in the short time fast reduction indoor heat exchanger's temperature, make indoor heat exchanger's temperature drop to be not higher than second sterilization temperature T2 and be not less than first sterilization temperature T1.
When the air guide piece is provided with the micropores to realize no wind sensation, the angle of the air guide piece is adjusted in the same way of gradually exiting from the no wind sensation mode.
When at least one of the rotation speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device and the rotation speed of the outdoor fan is adjusted, one or more of the rotation speed, the frequency, the opening degree and the rotation speed can be adjusted. The system pressure of the air conditioner can be reduced by any adjusting means of adjusting the angle of the air guide piece to increase the air outlet area of the air outlet, improving the rotating speed of the indoor fan, reducing the frequency of the compressor, increasing the opening of the throttling device, reducing the rotating speed of the outdoor fan and gradually quitting the no-wind feeling, so that the temperature of the indoor heat exchanger can be reduced. If it is detected that the temperature Tx of the indoor heat exchanger is higher than the second sterilization temperature T2, the electric auxiliary heat may be turned off if the electric auxiliary heat is turned on.
When one of the angle of the air guide member, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotating speed of the outdoor fan and the gradual exit of the air-free feeling is adjusted, only the angle of the air guide plate is adjusted to increase the air outlet area of the air outlet, only the rotating speed of the indoor fan is increased, only the frequency of the compressor is reduced, only the opening degree of the throttling device is increased, only the rotating speed of the outdoor fan is reduced, and only the exit of the air-free feeling is achieved.
When adjusting a plurality of items of the angle of the air guide, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotating speed of the outdoor fan and the gradual exit of the outdoor fan without wind sensation, the adjustment can be carried out simultaneously or sequentially. For example, the rotation speed of the indoor fan can be increased, the frequency of the compressor can be reduced, and the opening degree of the throttling device can be increased at the same time; for example, the rotation speed of the indoor fan can be sequentially increased, the frequency of the compressor can be reduced, and the opening degree of the throttling device can be sequentially increased.
Optionally, the second sterilization temperature is in a range of 56-96 ℃. Therefore, the second sterilization temperature T2 is set between 56-96 ℃, so that the indoor heat exchanger can have higher temperature through adjustment, the effective sterilization and disinfection effect can be realized, the problem that the reliability of the air conditioner is influenced due to overhigh temperature of the indoor heat exchanger can be avoided, and the running stability of the air conditioner is improved. Wherein, in the R22 refrigerant type air conditioner, the value range of the second sterilization temperature T2 is 56-72 ℃; the air conditioners are R410A and R32 refrigerant type air conditioners, and the value range of the second sterilization temperature T2 is 56-64 ℃; the value range of the second sterilization temperature T2 of the R290 refrigerant type air conditioner is 56-96 ℃.
Optionally, the difference between the second sterilization temperature T2 and the first sterilization temperature T1 is not less than 0.5 ℃. Therefore, the difference between the second sterilization temperature and the first sterilization temperature is not less than 0.5 ℃, so that frequent adjustment fluctuation is prevented, and system stability can be accelerated. For example, the difference between the second sterilization temperature T2 and the first sterilization temperature T1 may be in a range of 1-3 ℃. Frequent regulation fluctuations can thus be better prevented and system stabilization can be better accelerated.
In some embodiments of the present invention, the timing is started after at least one of increasing the air outlet area of the air outlet, increasing the rotation speed of the indoor fan, decreasing the frequency of the compressor, increasing the opening degree of the throttling device, and decreasing the rotation speed of the outdoor fan is adjusted by adjusting the angle of the air guide until the high-temperature sterilization mode is exited after the second set time. Therefore, the running time of the air conditioner at a higher temperature in the indoor heat exchanger can be conveniently calculated, meanwhile, the air conditioner continuously runs within a preset time range, the temperature of the indoor heat exchanger can be guaranteed to be reduced to be not higher than the second sterilization temperature and not lower than the first sterilization temperature, the sterilization time is guaranteed, and the sterilization and disinfection effects can be guaranteed. And moreover, the reliable continuous operation of the air conditioner at a higher temperature of the indoor heat exchanger is realized by controlling a plurality of parameters and judgment conditions to realize sterilization and disinfection, and the high-temperature sterilization mode is quitted after the air conditioner continuously operates for a preset time, so that the problems of compressor damage, service life of electric control components and plastic parts caused by long-term operation under severe working conditions can be reduced or avoided.
Optionally, the value range of the second set time is 10-60 min. For example, the value range of the second setting time can be 30-45 min. Therefore, the sterilization and disinfection effect can be ensured, and meanwhile, the damage of the compressor caused by the long-term operation under severe working conditions, the service life of an electric control component and the deformation problem of a plastic part can be reduced or avoided.
In some embodiments of the present invention, as shown in fig. 1 and 3, if it is determined that the temperature Tx of the indoor heat exchanger is between the first sterilization temperature T1 and the second sterilization temperature T2, the current operation state of the air conditioner is maintained, and the previous values of the rotation speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotation speed of the outdoor fan, the angle of the air guide and the like may be maintained, and the high temperature sterilization mode is exited after the time is counted until the air conditioner operates for the third set time. Therefore, the running time of the air conditioner at a higher temperature of the indoor heat exchanger can be conveniently calculated, the air conditioner can continuously run within a preset time range, and the sterilization time is ensured, so that the sterilization and disinfection effects can be ensured. And moreover, the reliable continuous operation of the air conditioner at a higher temperature of the indoor heat exchanger is realized by controlling a plurality of parameters and judgment conditions to realize sterilization and disinfection, and the high-temperature sterilization mode is quitted after the air conditioner continuously operates for a preset time, so that the problems of compressor damage, service life of electric control components and plastic parts caused by long-term operation under severe working conditions can be reduced or avoided.
Optionally, the value of the third setting time is greater than 10 min. For example, the third setting time is 30-45 min. Therefore, the sterilization and disinfection effect can be ensured, and meanwhile, the damage of the compressor caused by the long-term operation under severe working conditions, the service life of an electric control component and the deformation problem of a plastic part can be reduced or avoided.
In some embodiments of the present invention, the adjustment of any one of the angle of the air guide, the rotational speed of the indoor fan, the frequency of the compressor, the opening degree of the throttle device, and the rotational speed of the outdoor fan is adjusted step by step in adjustment steps, for example, the adjustment steps may be adjusted in the adjustment steps described below. Therefore, in the process of adjusting any one parameter of the angle of the air guide piece, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device and the rotating speed of the outdoor fan, the temperature of the indoor heat exchanger can be stably and gradually increased or reduced by gradually adjusting according to the set adjustment step, and the stability and the reliability of the operation of the air conditioner are facilitated.
Wherein, in the process of adjusting any one of the angle of the air guide, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device and the rotating speed of the outdoor fan, the adjustment step of increasing the system pressure is smaller than the adjustment step of reducing the system pressure. The system pressure can be improved by reducing the rotating speed of the indoor unit, improving the frequency of the compressor, reducing the opening of the throttling device and improving the rotating speed of the outdoor fan, and the system pressure can be reduced by improving the rotating speed of the indoor unit, reducing the frequency of the compressor, increasing the opening of the throttling device and reducing the rotating speed of the outdoor fan. When the temperature of the indoor heat exchanger needs to be increased, the temperature of the indoor heat exchanger can be increased by adjusting parameters, and the system pressure is increased in the process of increasing the temperature of the indoor heat exchanger; when the temperature of the indoor heat exchanger needs to be reduced, the temperature of the indoor heat exchanger can be reduced by adjusting parameters, and the system pressure is reduced in the process of reducing the temperature of the indoor heat exchanger. Therefore, in the process of adjusting the parameters, the adjustment step for increasing the system pressure is not larger than the adjustment step for reducing the system pressure, so that the system pressure can be slowly increased when the system pressure is lower, and the system pressure can be quickly reduced when the system pressure is higher, and therefore, the reliable and stable operation of the air conditioner can be ensured in the process of adjusting the parameters.
In some embodiments of the present invention, the adjustment rule of any one of the angle of the air guide, the rotational speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, and the rotational speed of the outdoor fan is one of a first adjustment rule, a second adjustment rule, a third adjustment rule, and a fourth adjustment rule, wherein the first adjustment rule is a step-by-step adjustment in which an adjustment step is performed according to a step length, the second adjustment rule is a step-by-step adjustment in which an adjustment step is performed according to a product of a temperature difference of the heat exchanger and a gain coefficient, the third adjustment rule is a step-by-step adjustment in which a percentage of a current value is the adjustment step, the fourth adjustment rule is a step-by-step adjustment in which a percentage of a rated value is the adjustment step, when the system pressure is increased, the temperature difference of the heat exchanger refers to an absolute value of a difference between the current temperature of the indoor heat exchanger and the first sterilization temperature, and when the system pressure is decreased, the temperature difference of the indoor heat exchanger refers to an absolute value of a difference between the current temperature and the second sterilization temperature The value is obtained.
Therefore, in the process of adjusting any one parameter of the angle of the air guide piece, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device and the rotating speed of the outdoor fan, the temperature of the indoor heat exchanger can be stably and gradually increased or reduced by gradually adjusting according to the set adjustment step size, the temperature of the indoor heat exchanger is ensured to be between the first sterilization temperature and the second sterilization temperature, and the stability and the reliability of the operation of the air conditioner are facilitated. Wherein, the adjusting step refers to the amplitude of the parameter adjusted in each step when a certain parameter is adjusted step by step. When the angle of the air guide piece is adjusted, the adjustment step specifically refers to the amplitude of adjusting the angle of the air guide piece in each step.
In other embodiments, the rotation speed of the indoor fan and the rotation speed of the outdoor fan can be adjusted according to gears.
A specific adjustment manner when the adjustment rule of any one of the air guide, the rotational speed of the indoor fan, the frequency of the compressor, the opening degree of the throttle device, and the rotational speed of the outdoor fan is one of the first adjustment rule, the second adjustment rule, the third adjustment rule, and the fourth adjustment rule will be described in detail below.
And (3) reducing and adjusting the rotating speed of the indoor fan:
the first adjustment rule is to gradually adjust according to a step length as an adjustment step length, specifically to adjust and reduce the rotating speed of the indoor fan, wherein the step length means that the amplitude of the rotating speed of the indoor fan is adjusted at each step and is a fixed value, for example, the rotating speed of the indoor fan before the rotating speed of the indoor fan is adjusted is R, the rotating speed amplitude of the indoor fan after each step is reduced is a step length Rd, (R-Rd) is the rotating speed of the indoor fan after adjustment, and the value range of the Rd can be 1-300 rpm;
the second regulation rule is that the regulation step is gradually regulated according to the product of the temperature difference value of the heat exchanger and the gain coefficient, specifically, the rotation speed of the indoor fan is regulated and reduced, for example, the rotation speed of the indoor fan before the rotation speed of the indoor fan is regulated is R, and the rotation speed amplitude of the indoor fan is reduced by one step is | T1-Tx |. KdInner part，[R-|T1-Tx|*KdInner part]I.e. the adjusted rotating speed of the indoor fan, wherein Tx is the temperature of the indoor heat exchanger detected before the rotating speed of the indoor fan is adjusted, T1 is the first sterilization temperature, KdInner partGain factor, Kd, for reducing the speed of rotationInner partThe value range of (A) is 1-100 rpm/DEG C;
the third regulation rule is that the regulation step is gradually regulated according to the percentage of the current value, specifically, the rotation speed of the indoor fan is regulated and reduced, for example, the rotation speed of the indoor fan before the rotation speed of the indoor fan is regulated is R, and the rotation speed amplitude of the indoor fan is reduced by R d each stepInner part％，[R-R*dInner part％]I.e. the rotating speed of the indoor fan after adjustment, wherein d% is the amplitude coefficient for reducing the rotating speed, dInner part% of the total content is 1-50%;
the fourth regulation rule is that the regulation step is gradually regulated according to the percentage of the rated value, specifically, the rotation speed of the indoor fan is regulated and reduced, for example, the rotation speed of the indoor fan before the rotation speed of the indoor fan is regulated is R, and the rotation speed amplitude of the indoor fan is reduced by (Rmax-Rmin) Ed each stepInner part％，[R-(Rmax-Rmin)*EdInner part％]Namely the rotating speed of the indoor fan after adjustment, Rmax is the maximum value of the rated rotating speed of the indoor fan, Rmin is the minimum value of the rated rotating speed of the indoor fan, and EdInner part% is the nominal amplitude coefficient, Ed, for reducing the rotational speedInner part% of the total amount of the active ingredients is 1-50%.
And (3) increasing and adjusting the rotating speed of the indoor fan:
the first adjustment rule is to gradually adjust the indoor fan according to a step length, specifically to adjust and increase the rotation speed of the indoor fan, where the step length means that the amplitude of the rotation speed of the indoor fan is adjusted at each step and is a fixed value, for example, the rotation speed of the indoor fan before the rotation speed of the indoor fan is adjusted is R, the amplitude of the rotation speed of the indoor fan during each step is increased, i.e., the step length is Ru, and (R + Ru) is the rotation speed of the indoor fan after adjustment;
the second regulation rule is that the regulation step is gradually regulated according to the product of the temperature difference value of the heat exchanger and the gain coefficient, specifically, the rotation speed of the indoor fan is regulated and increased, for example, the rotation speed of the indoor fan before the rotation speed of the indoor fan is regulated is R, and the rotation speed amplitude of the indoor fan increased in each step is | Tx-T2 |. KuInner part，[R+|Tx-T2|*KuInner part]Namely, the adjusted rotating speed of the indoor fan, wherein Tx is the temperature of the indoor heat exchanger detected before the rotating speed of the indoor fan is adjusted, T2 is the second sterilization temperature, KuInner partGain factor for increasing the rotation speed;
the third regulation rule is that the regulation step is gradually regulated according to the percentage of the current value, specifically, the rotating speed of the indoor fan is regulated and increased, for example, the rotating speed of the indoor fan is R before the rotating speed of the indoor fan is regulated, and the rotating speed amplitude of the indoor fan is increased by R u in each stepInner part％，[R+R*uInner part％]The adjusted rotating speed of the indoor fan is obtained, wherein u% is an amplitude coefficient for improving the rotating speed;
the fourth regulation rule is that the regulation step is gradually regulated according to the percentage of the rated value, specifically, the rotating speed of the indoor fan is regulated and increased, for example, the rotating speed of the indoor fan before the rotating speed of the indoor fan is regulated is R, and the rotating speed amplitude of the indoor fan increased in each step is (Rmax-Rmin). EuInner part％，[R+(Rmax-Rmin)*EuInner part％]Namely the regulated rotating speed of the indoor fan, Rmax is the maximum rated rotating speed of the indoor fan, Rmin is the minimum rated rotating speed of the indoor fan, and Eu isInner part% is the nominal amplitude factor that increases the rotational speed.
Frequency reduction regulation of the compressor:
the first adjustment rule is that the frequency of the compressor is adjusted step by step according to a step length, specifically, the step length refers to that the amplitude of the frequency of the compressor is adjusted at each step is a fixed value, for example, the frequency of the compressor before the frequency of the compressor is adjusted is F, the frequency amplitude of the compressor at each step is Fd, (F-Fd) is the frequency of the compressor after adjustment, and the value range of the Fd can be 1-30 Hz;
the second regulation rule is that the regulation step is gradually regulated according to the product of the temperature difference of the heat exchanger and the gain coefficient, specifically, the regulation reduces the frequency of the compressor, for example, the frequency of the compressor before the regulation of the frequency of the compressor is F, and the frequency amplitude of the compressor is | Tx-T2 |. Kd in each stepPress and press，(F-|Tx-T2|*KdPress and press) I.e., the frequency of the compressor after adjustment, wherein Tx is the temperature of the indoor heat exchanger detected before adjusting the frequency of the compressor, T2 is the second sterilization temperature, KdPress and pressTo reduce the gain factor, Kd, of frequencyPress and pressThe value range of (A) is 1-12 Hz/DEG C;
the third regulation rule is that the regulation step is gradually regulated according to the percentage of the current value, specifically, the regulation reduces the frequency of the compressor, for example, the frequency of the compressor is F before the regulation of the frequency of the compressor, and the frequency amplitude of the compressor is F x d in each stepPress and press％，(F-F*dPress and press%) is the frequency of the compressor after adjustment, wherein dPress and press% is the amplitude coefficient of the reduced frequency, dPress and press% of the total content is 1-50%;
the fourth regulation rule is that the regulation step is stepwise regulated according to the percentage of the nominal value, specifically until the regulation reduces the frequency of the compressor, for example, the frequency of the compressor is F before the regulation of the frequency of the compressor, and the frequency amplitude of the compressor is (Fmax-Fmin) Ed per stepPress and press％，[F-(Fmax-Fmin)*EdPress and press％]I.e. the frequency of the compressor after adjustment, Fmax is the maximum allowable frequency of the compressor, Fmin is the minimum allowable frequency of the compressor, EdPress and press% is the nominal amplitude coefficient for the reduced frequency, EdPress and press% of the total amount of the active ingredients is 1-50%.
Frequency boost regulation of the compressor:
the first adjustment rule is to adjust the frequency of the compressor step by step according to a step length, specifically, to adjust and increase the frequency of the compressor, where the step length is that the amplitude of the frequency of the compressor adjusted at each step is a fixed value, for example, the frequency of the compressor before the frequency of the compressor is adjusted is F, the frequency amplitude of the compressor increased at each step is the step length Fu, and (F + Fu) is the frequency of the compressor after adjustment;
the second regulation rule is that the regulation step is gradually regulated according to the product of the temperature difference of the heat exchanger and the gain coefficient, specifically, the frequency of the compressor is increased by regulation, for example, the frequency of the compressor before the frequency of the compressor is regulated is F, and the frequency amplitude of the compressor is increased by every step is | T1-Tx | Ku |Press and press，[F+|T1-Tx|*KuPress and press]I.e. the frequency of the compressor after adjustment, wherein Tx is the temperature of the indoor heat exchanger detected before adjusting the frequency of the compressor, and T1 is the first sterilization temperature, KuPress and pressA gain factor for increasing frequency;
the third regulation rule is that the regulation step is gradually regulated according to the percentage of the current value, specifically, the frequency of the compressor is increased by regulating, for example, the frequency of the compressor is F before the regulation of the frequency of the compressor, and the frequency amplitude of the compressor is increased by F u per stepPress and press％，(F+F*uPress and press%) is the frequency of the compressor after adjustment, where uPress and press% is amplitude coefficient of increasing frequency;
the fourth regulation rule is that the regulation step is stepwise regulated according to the percentage of the rated value, specifically, the frequency of the compressor is increased until the regulation step, for example, the frequency of the compressor is F before the regulation step, and the frequency amplitude of the compressor is increased to (Fmax-Fmin) Eu in each stepPress and press％，[F+(Fmax-Fmin)*EuPress and press％]I.e. the frequency of the compressor after adjustment, Fmax is the maximum allowable frequency of the compressor, Fmin is the minimum allowable frequency of the compressor, and EuPress and press% is the nominal amplitude factor for the boost frequency.
Opening degree reduction adjustment of the throttle device:
the first adjustment rule is that the adjustment is performed step by step according to a step length, specifically, the step length is to adjust and reduce the opening degree of the throttling device, wherein the step length means that the amplitude of the opening degree of the throttling device in each step is a fixed value, for example, the opening degree of the throttling device before the opening degree of the throttling device is adjusted is P, the amplitude of the opening degree of the throttling device in each step is Pd, (P-Pd) is the opening degree of the throttling device after adjustment, and the value range of Pd is 1-250 PPM;
the second regulation rule is that the regulation step is gradually regulated according to the product of the temperature difference of the heat exchanger and the gain coefficient, specifically, the opening degree of the throttling device is reduced until the regulation is carried out, for example, the opening degree of the throttling device before the regulation is carried out is P, and the opening degree amplitude of the throttling device is reduced by one step is | T1-Tx |. KdNode (C)，[P-|T1-Tx|*KdNode (C)]I.e., the opening degree after adjustment, where Tx is the temperature of the indoor heat exchanger detected before the opening degree of the throttle device is adjusted, T1 is the first sterilization temperature,
Kdnode (C)Gain factor, Kd, for reducing openingNode (C)The value range of (A) is 1-90 PPM/DEG C;
the third regulation rule is that the regulation step is gradually regulated according to the percentage of the current value, specifically, the opening degree of the throttling device is reduced, for example, the opening degree of the throttling device before the opening degree of the throttling device is regulated is P, and the opening degree of the throttling device is reduced in each step by P x dNode (C)％，(P-P*dNode (C)%) is the opening degree after adjustment, wherein dNode (C)% is the amplitude coefficient of decreasing opening, dNode (C)% of the total content is 1-50%;
the fourth regulation rule is that the regulation step is stepwise regulated according to the percentage of the rated value, specifically, the opening degree of the throttling device is reduced until the regulation step is carried out, for example, the opening degree of the throttling device before the regulation step is carried out is P, and the opening degree amplitude of the throttling device is reduced to (Pmax-Pmin) Ed in each stepNode (C)％，[P-(Pmax-Pmin)*EdNode (C)％]Namely the adjusted opening degree, Pmax is the maximum allowable opening degree of the throttling device, Pmin is the minimum allowable opening degree of the throttling device, Ed% is a rated amplitude coefficient for reducing the opening degree, EdNode (C)% of the total amount of the active ingredients is 1-50%.
Opening degree increase adjustment of the throttling device:
the first adjustment rule is to gradually adjust the opening degree of the throttling device according to a step length, specifically to adjust and increase the opening degree of the throttling device, where the step length means that the amplitude of the opening degree of the throttling device in each step is a fixed value, for example, the opening degree of the throttling device before the opening degree of the throttling device is adjusted is P, the amplitude of the opening degree of the throttling device in each step, that is, the step length is Pu, and P + Pu is the opening degree after adjustment;
the second regulation rule is that the regulation step is gradually regulated according to the product of the temperature difference value of the heat exchanger and the gain coefficient, specifically, the opening degree of the throttling device is regulated to be increased, for example, the opening degree of the throttling device before the opening degree of the throttling device is regulated to be P, and the opening degree amplitude of the throttling device is increased to be | Tx-T2 |. Ku in each stepNode (C)，(P+|Tx-T2|*KuNode (C)) The adjusted opening degree, wherein Tx is the temperature of the indoor heat exchanger detected before the opening degree of the throttling device is adjusted, T2 is the second sterilization temperature, and Ku is a gain coefficient for increasing the opening degree;
the third regulation rule is that the regulation step is gradually regulated according to the percentage of the current value, specifically, the opening degree of the throttling device is increased until the regulation step is used for regulating the opening degree of the throttling device, for example, the opening degree of the throttling device before the regulation step is used for regulating the opening degree of the throttling device is P, and the opening degree amplitude of the throttling device in each step is P uNode (C)％，P+P*uNode (C)% is the opening after adjustment, where uNode (C)% is an amplitude coefficient for increasing the opening degree;
the fourth regulation rule is that the regulation step is stepwise regulated according to the percentage of the rated value, specifically, the opening degree of the throttling device is increased until the regulation step is to adjust the opening degree of the throttling device, for example, the opening degree of the throttling device before the regulation step is to adjust the opening degree of the throttling device is P, and the opening degree amplitude of the throttling device is increased by (Pmax-Pmin) Eu in each stepNode (C)％，(P+(Pmax-Pmin)*EuNode (C)%) is the adjusted opening degree, Pmax is the maximum allowable opening degree of the throttling device, Pmin is the minimum allowable opening degree of the throttling device, and Eu isNode (C)% is the nominal amplitude coefficient for increasing opening.
And (3) reducing and adjusting the rotating speed of the outdoor fan:
the first adjustment rule is that the adjustment is performed step by step according to a step length, specifically, the rotation speed of the outdoor fan is adjusted and reduced, the step length means that the amplitude of the rotation speed of the outdoor fan is adjusted in each step and is a fixed value, for example, the rotation speed of the outdoor fan before the rotation speed of the outdoor fan is adjusted is W, the amplitude of the rotation speed of the outdoor fan which is reduced in each step is the step length Wd, W-Wd is the rotation speed after the adjustment, and the value range of W x d can be 1-300 rpm;
second regulation ruleThe method comprises the steps of adjusting step by step according to the product of the temperature difference value of the heat exchanger and the gain coefficient, and specifically, adjusting and reducing the rotating speed of the outdoor fan, for example, adjusting the rotating speed of the outdoor fan to be W before the rotating speed of the outdoor fan, and reducing the rotating speed of the outdoor fan by one step to be | Tx-T2 |. multidot.KdOuter cover，[W-|T2-Tx|*KdOuter cover]I.e., the adjusted rotation speed, wherein Tx is the temperature of the indoor heat exchanger detected before the rotation speed of the outdoor fan is adjusted, T2 is the second sterilization temperature, KdOuter coverGain factor, Kd, for reducing the speed of rotationOuter coverThe value range of (A) is 1-100 rpm/DEG C;
the third regulation rule is that the regulation step is gradually regulated according to the percentage of the current value, specifically, the rotation speed of the outdoor fan is regulated and reduced, for example, the rotation speed of the outdoor fan before the rotation speed of the outdoor fan is regulated is W, and the rotation speed amplitude of the outdoor fan is reduced in each step is W x dOuter cover％，W-W*dOuter cover% is the rotational speed after adjustment, where dOuter cover% is the amplitude coefficient for reducing the rotational speed, dOuter cover% of the total content is 1-50%;
the fourth regulation rule is that the regulation step is gradually regulated according to the percentage of the rated value, specifically, the rotation speed of the outdoor fan is regulated and reduced, for example, the rotation speed of the indoor fan is W before the rotation speed of the outdoor fan is regulated, and the rotation speed amplitude of the outdoor fan is reduced by (Wmax-Wmin) × Ed every stepOuter cover％，[W-(Wmax-Wmin)*EdOuter cover％]Namely the adjusted rotating speed, Wmax is the maximum value of the rated rotating speed of the outdoor fan, Wmin is the minimum value of the rated rotating speed of the outdoor fan, EdOuter cover% is the nominal amplitude coefficient, Ed, for reducing the rotational speedOuter cover% of the total amount of the active ingredients is 1-50%.
And (3) increasing and adjusting the rotating speed of the outdoor fan:
the first adjustment rule is that the adjustment is performed step by step according to a step length, specifically, the rotation speed of the outdoor fan is increased by adjustment, the step length means that the amplitude of the rotation speed of the outdoor fan is adjusted in each step and is a fixed value, for example, the rotation speed of the outdoor fan before the rotation speed of the outdoor fan is adjusted is W, the amplitude of the rotation speed of the outdoor fan increased in each step is the step length Wu, and W + Wu is the rotation speed after the adjustment;
the second regulation rule is that the regulation step is gradually regulated according to the product of the temperature difference value of the heat exchanger and the gain coefficient, specifically, the rotation speed of the outdoor fan is regulated and increased, for example, the rotation speed of the outdoor fan before the rotation speed of the outdoor fan is regulated to be W, and the rotation speed amplitude of the outdoor fan increased in each step is | T1-Tx | KuOuter cover，(W+|T1-Tx|*KuOuter cover) I.e., the adjusted rotation speed, wherein Tx is the temperature of the indoor heat exchanger detected before the rotation speed of the outdoor fan is adjusted, and T1 is the first sterilization temperature, KuOuter coverGain factor for increasing the rotation speed;
the third regulation rule is that the regulation step is gradually regulated according to the percentage of the current value, specifically, the rotating speed of the outdoor fan is regulated and increased, for example, the rotating speed of the outdoor fan before the rotating speed of the outdoor fan is regulated is W, and the rotating speed amplitude of the outdoor fan increased in each step is W uOuter cover%, wherein uOuter cover% is amplitude coefficient for increasing rotation speed;
the fourth regulation rule is that the regulation step is gradually regulated according to the percentage of the rated value, specifically, the rotation speed of the outdoor fan is regulated and increased, for example, the rotation speed of the outdoor fan before the rotation speed of the outdoor fan is regulated is W, and the rotation speed amplitude of the outdoor fan increased by each step is (Wmax-Wmin). EuOuter cover% Wmax is the maximum rated speed of the outdoor fan, Wmin is the minimum rated speed of the outdoor fan, EuOuter cover% is the nominal amplitude factor that increases the rotational speed.
The angle modulation of air guide reduces so that the air-out area of air outlet gradually:
the first regulation rule is for adjusting step by step according to the step length, specifically to the angle of adjusting the air guide, the step length means that the range size of the angle of adjusting the air guide in each step is a fixed value, for example, the air guide swings the rotation from top to bottom, the included angle between the air guide and the vertical upward direction before adjusting the air guide is beta, the angle range of rotating the air guide in each step, that is, the step length, is beta d, and the air guide rotates towards the direction of closing the air outlet, and the value range of beta d can be 1-75 degrees.
The second regulation rule is that the regulation step is gradually regulated according to the product of the temperature difference value and the gain coefficient of the heat exchanger, specifically to the regulation stepAdjusting the angle between the wind guide and the vertical direction before the wind guide to be beta, and the angle amplitude of each step of rotating the wind guide to be | T1-Tx | KdGuide tubeAnd the air guide piece rotates towards the direction of closing the air outlet, wherein Tx is the temperature of the indoor heat exchanger detected before the air guide piece is regulated, T1 is the first sterilization temperature, KdGuide tubeTo reduce the gain factor of the angle, KdGuide tubeThe value range of (A) is 1-25 DEG/DEG C.
The third adjustment rule is to adjust the step by step according to the percentage of the current value, specifically to adjust the angle of the air guide, for example, the air guide swings and rotates up and down, the included angle between the air guide before the air guide is adjusted and the vertical upward direction is β, and the angle amplitude of the air guide rotating in each step is β × dGuide tube% and the wind guide rotates towards the direction of closing the wind outlet, wherein dGuide tube% is the amplitude coefficient of the decreasing angle, dGuide tube% of the total amount of the active ingredients is 1-50%.
The fourth adjustment rule is to adjust the step by step according to the percentage of the rated value, specifically to adjust the angle of the air guide, for example, the air guide swings and rotates up and down, the included angle between the air guide before the air guide is adjusted and the vertical upward direction is β, and the angular amplitude of the air guide rotating in each step is (β max- β min) × EdGuide tube% and the wind guide piece rotates towards the direction of closing the air outlet. Wherein β max is a maximum value of an angle between the air guide and the vertically upward direction (see fig. 7 and 8), β min is a minimum value of an angle between the air guide and the vertically upward direction (see fig. 7 and 8), and EdGuide tube% is the nominal amplitude coefficient of the reduction angle, EdGuide tube% of the total amount of the active ingredients is 1-50%.
The angle modulation of wind-guiding piece is so that the air-out area of air outlet crescent:
the first adjustment rule is that the adjustment is performed step by step according to a step length, specifically, to the adjustment of the angle of the air guide, the step length means that the amplitude of the angle of the air guide in each step is a fixed value, for example, the air guide swings up and down to rotate, an included angle between the air guide and the vertical upward direction before the air guide is adjusted is β, the amplitude of the angle of the air guide in each step is β u, and the air guide rotates toward the direction of opening the air outlet.
The second regulation rule is that the regulation step is step by step according to the product of the temperature difference value of the heat exchanger and the gain coefficient, specifically, the regulation is carried out on the angle of the air guide piece, for example, the air guide piece swings and rotates up and down, the included angle between the air guide piece before the air guide piece is regulated and the vertical upward direction is beta, and the angle amplitude of the rotation of the air guide piece in each step is | Tx-T2| KuGuide tubeAnd the air guide piece rotates towards the direction of opening the air outlet, wherein Tx is the temperature of the indoor heat exchanger detected before the air guide piece is regulated, T2 is the second sterilization temperature, KuGuide tubeTo increase the gain factor of the angle.
The third adjustment rule is to adjust the step by step according to the percentage of the current value, specifically to adjust the angle of the air guide, for example, the air guide swings and rotates up and down, the included angle between the air guide before the air guide is adjusted and the vertical upward direction is β, and the angle amplitude of the air guide rotating in each step is β uGuide tube% and the wind guide rotates towards the direction of opening the wind outlet, wherein uGuide tube% is the amplitude coefficient of the increase angle.
The fourth adjustment rule is to adjust the step by step according to the percentage of the rated value, specifically to adjust the angle of the air guide, for example, the air guide swings and rotates up and down, the included angle between the air guide before the air guide is adjusted and the vertical upward direction is β, and the angle amplitude of the rotation of the air guide in each step is (β max- β min) × EuGuide tube% and the wind guide piece rotates towards the direction of opening the air outlet. Wherein β max is a maximum value of an angle between the air guide and the vertically upward direction (see fig. 7 and 8), β min is a minimum value of an angle between the air guide and the vertically upward direction (see fig. 7 and 8), and Eu isGuide tube% is the nominal amplitude coefficient for the increasing angle.
When the adjustment of any one parameter of the angle of the air guide, the rotational speed of the indoor fan, the frequency of the compressor, the opening degree of the throttle device, and the rotational speed of the outdoor fan is adjusted according to one of the first adjustment rule, the second adjustment rule, the third adjustment rule, and the fourth adjustment rule, the comparison of the adjustment steps of the increase in the system pressure and the decrease in the system pressure in each adjustment rule will be described below.
For example, when adjusting the angle of the air guide, the following adjustment rules are adjusted: β d ≦ β u, e.g., β u ≧ 1.5 β d; and adjusting according to a second adjusting rule: kdGuide tube≤KuGuide tubeE.g. KuGuide tube≥1.2KdGuide tube(ii) a Adjusting according to a third adjusting rule: dGuide tube％≤uGuide tube%, e.g. uGuide tube％≥1.5dGuide tubePercent; and (4) adjusting according to a fourth adjusting rule: edGuide tube％≤EuGuide tube%, e.g. EuGuide tube％≥1.5EdGuide tube％。
For example, when the rotating speed of the indoor fan is adjusted, the following regulation rules are adjusted: rd ≦ Ru, e.g., Ru ≧ 1.5 Rd; and adjusting according to a second adjusting rule: kdInner part≤KuInner partE.g. KuInner part≥1.2KdInner part(ii) a Adjusting according to a third adjusting rule: dInner part％≤uInner part%, e.g. uInner part％≥1.5dInner partPercent; and (4) adjusting according to a fourth adjusting rule: edInner part％≤EuInner part%, e.g. EuInner part％≥1.5EdInner part％。
For example, when adjusting the frequency of the compressor, according to a first adjustment rule: Fd.gtoreq.Fu, for example Fd.gtoreq.1.5 Fu; and adjusting according to a second adjusting rule: kdPress and press≥KuPress and pressE.g. KdPress and press≥1.2KuPress and press(ii) a Adjusting according to a third adjusting rule: dPress and press％≥uPress and press%, e.g. dPress and press％≥1.5uPress and pressPercent; and (4) adjusting according to a fourth adjusting rule: edPress and press％≥EuPress and press%, e.g. EdPress and press％≥1.5EuPress and press％。
For example, when the opening degree of the throttle device is adjusted, the following are adjusted according to a first adjustment rule: pd ≦ Pu, e.g., Pu ≧ 1.5 Pd; and adjusting according to a second adjusting rule: kdNode (C)≤KuNode (C)E.g. KuNode (C)≥1.2KdNode (C)(ii) a Adjusting according to a third adjusting rule: dNode (C)％≤uNode (C)%, e.g. uNode (C)％≥1.5dNode (C)Percent; and (4) adjusting according to a fourth adjusting rule: edNode (C)％≤EuNode (C)%, e.g. EuNode (C)％≥1.5EdNode (C)％。
For example, when the rotating speed of the outdoor fan is adjusted, the following regulation rules are adjusted: wd ≧ Wu, e.g., Wd ≧ 1.5 Wu; and adjusting according to a second adjusting rule: kdOuter cover≥KuOuter coverE.g. KdOuter cover≥1.2KuOuter cover(ii) a Adjusting according to a third adjusting rule: dOuter cover％≥uOuter cover%, e.g. dOuter cover％≥1.5uOuter coverPercent; and (4) adjusting according to a fourth adjusting rule: edOuter cover％≥EuOuter cover%, e.g. EdOuter cover％≥1.5EuOuter cover％。
In some embodiments of the present invention, some parameters of the air conditioner may be set as follows:
the value range of the maximum allowable frequency Fmax of the compressor is 70-160 Hz, and the value range of the minimum allowable frequency Fmin of the compressor is 0.1-40 Hz;
the value range of the maximum value Wmax of the rated rotating speed of the outdoor fan is 700-1100 RPM, and the value range of the minimum value Wmin of the rated rotating speed of the outdoor fan is 150-600 RPM;
the value range of the maximum allowable opening degree Pmax of the throttling device is 350-650 PPM, and the value range of the minimum allowable opening degree Pmin of the throttling device is 0-250 PPM;
the maximum value Rmax of the rated rotating speed of the indoor fan ranges from 900 RPM to 1600RPM, and the minimum value Rmin of the rated rotating speed of the indoor fan ranges from 150 RPM to 800 RPM;
the minimum rotating speed Rss of the indoor fan is less than or equal to Rmin, the value range of Rss is 50-700 RPM, and 150-450 RPM is preferred;
the maximum rotating speed Rxx of the indoor fan is larger than or equal to Rmax, the value range of Rxx is 900-1800 RPM, and 1050-1250 RPM is preferred.
Therefore, the frequency of compression, the rotating speed of the outdoor fan, the opening degree of the throttling device and the rated rotating speed of the indoor fan can be set in the ranges, so that each parameter has a large adjusting range, and the temperature of the indoor heat exchanger can be adjusted better by adjusting each parameter. And, through making the minimum rotational speed of indoor fan can be less than the rated revolution minimum of indoor fan and make the maximum rotational speed of indoor fan can be higher than the maximum value of the rated revolution of indoor fan, can further enlarge the rotational speed control range of indoor fan from this to can adjust the temperature of indoor heat exchanger better, thereby can realize the high temperature sterilization effect better.
In some embodiments of the present invention, after the air conditioner operates in the heating state for the fourth set time, it is determined whether a pressure ratio of the high pressure and the low pressure is greater than or equal to a preset ratio PR or whether a pressure difference between the high pressure and the low pressure is greater than or equal to a preset difference PD. Therefore, before judging whether the pressure ratio of the high pressure to the low pressure is larger than or equal to the preset ratio PR or whether the pressure difference between the high pressure and the low pressure is larger than or equal to the preset difference value PD, the air conditioner can enter a stable operation state and the temperature of the indoor heat exchanger can enter a stable state by enabling the air conditioner to operate for a period of time in a heating state, and therefore the judgment result is more reliable.
When the temperature Tx of the indoor heat exchanger needs to be judged to be higher than the second sterilization temperature T2 at the same time, after the air conditioner operates in the heating state for a fourth set time, whether the pressure ratio of the high pressure and the low pressure is larger than or equal to a preset ratio PR or whether the pressure difference between the high pressure and the low pressure is larger than or equal to a preset difference PD is judged.
The fourth setting time is the operation time of the air conditioner in the heating state. If the air conditioner is in a non-heating state (for example, a cooling state) before entering the high-temperature sterilization mode or is just started before the air conditioner enters the high-temperature sterilization mode, the fourth set time is counted when the air conditioner is adjusted to be in the heating state after entering the high-temperature sterilization mode. If the air conditioner is in a heating state before entering the high-temperature sterilization mode, the fourth set time is counted from the heating operation before the air conditioner enters the high-temperature sterilization mode. For example, if the time of the heating operation is not less than the fourth set time before the air conditioner enters the high-temperature sterilization mode, after the air conditioner enters the high-temperature sterilization mode, it may be determined whether the pressure ratio between the high pressure and the low pressure is greater than or equal to the preset ratio PR or whether the pressure difference between the high pressure and the low pressure is greater than or equal to the preset difference PD. For another example, if the time of the heating operation is less than the fourth set time before the air conditioner enters the high-temperature sterilization mode, after the air conditioner enters the high-temperature sterilization mode and continues to be accumulated to the fourth set time, it is determined whether the pressure ratio between the high pressure and the low pressure is greater than or equal to the preset ratio PR or whether the pressure difference between the high pressure and the low pressure is greater than or equal to the preset difference PD.
Optionally, the value range of the fourth setting time is 1-60 min, and preferably, the value range of the fourth setting time is 1-20 min. Therefore, the air conditioner can have enough time to reach a stable operation state, and meanwhile, the working efficiency and the sterilization efficiency can be improved.
Further, when the outdoor temperature is above 15 ℃, the value range of the fourth set time is 3-10 min; when the outdoor temperature is 5-15 ℃, the value range of the fourth set time is 5-15 min; and when the outdoor temperature is below 5 ℃, the value range of the fourth set time is 8-20 min. The operation under the heating mode is to extract the outdoor air heat to indoor heating indoor heat exchanger and indoor air, therefore outdoor temperature is higher, and indoor heat exchanger just is easy to heat up, and system pressure promotes sooner. Therefore, the fourth setting time is shorter when the outdoor temperature is higher, the fourth setting time is longer when the outdoor temperature is lower, and the fourth setting time is determined according to the outdoor temperature, so that the air conditioner can operate in different outdoor temperature environments, more operation time can be provided when the outdoor temperature of the air conditioner is lower to reach a stable operation state, the air conditioner can quickly enter subsequent temperature judgment of the indoor heat exchanger when the outdoor temperature is higher, the air conditioner can have corresponding preposed heating operation time under different working conditions, the air conditioner can be ensured to reach the stable operation state before entering the temperature judgment of the indoor heat exchanger, and meanwhile, the working efficiency and the sterilization efficiency can be improved.
No matter the indoor heat exchanger disinfects the disinfection or the outdoor heat exchanger disinfects the disinfection, all receive the influence of indoor outer temperature, along with the rising of temperature, the intensification of heat exchanger is easier, and the disinfection of disinfecting realizes more easily, but mainly receives the influence of outdoor temperature. Therefore, the stable time in the early stage of sterilization and disinfection and the partition control of the duration time of sterilization and disinfection can be carried out by combining the outdoor temperature. The temperature of the subareas can be set according to different requirements of an air conditioning system, energy efficiency grade, initial condition setting and sterilization and disinfection requirements. Specifically, fig. 9 shows the relationship between the fourth set time T1 and the outdoor temperature T4.
In the cooling mode, the heat of the indoor air is extracted to the outdoor heat exchanger, so that the outdoor temperature is easily increased as the indoor temperature is higher, but the outdoor temperature is decreased during cooling, and the heat of extraction is decreased, so that the outdoor temperature is more influenced.
In some embodiments of the present invention, as shown in fig. 5, when the air conditioner enters the high-temperature sterilization mode, it is detected whether the current operation state of the air conditioner is in the heating state, if the current operation state of the air conditioner is in the heating state, the air conditioner keeps heating operation, and the value range of the fourth setting time is 1-30 min, for example, the value range of the fourth setting time may be 1-10 min, preferably 1-5 min; and if the current operation state of the air conditioner is not in the heating state, controlling the air conditioner to be switched to the heating state for operation, wherein the value range of the fourth set time is 1-60 min. For example, the value of the fourth setting time may be in a range of 1 to 15min, preferably 5 to 8 min. Therefore, when the air conditioner enters the high-temperature sterilization mode, whether the current operation state of the air conditioner is in the heating state is detected, and the corresponding preposed heating operation time (namely the fourth set time) is set according to the detection result, for example, the fourth set time is set to be shorter when the current operation state of the air conditioner is in the heating state relative to the situation that the current operation state of the air conditioner is not in the heating state. The air conditioner can be ensured to reach a stable operation state before entering the indoor heat exchanger for temperature judgment, and meanwhile, the working efficiency and the sterilization efficiency can be improved.
In some embodiments of the present invention, before determining whether the ratio of the high pressure to the low pressure is greater than or equal to a preset ratio or whether the pressure difference between the high pressure and the low pressure is greater than or equal to a preset difference, determining whether the air conditioner is operated in a heating state for a fourth set time,
if the air conditioner runs for a fourth set time in the heating state, judging whether the pressure ratio of the high pressure to the low pressure is larger than or equal to a preset ratio or whether the pressure difference between the high pressure and the low pressure is larger than or equal to a preset difference value;
and if the air conditioner does not run for the fourth set time in the heating state, judging whether the temperature of the indoor heat exchanger is greater than or equal to a third sterilization temperature or judging whether the temperature change rate of the indoor heat exchanger is greater than or equal to a set change rate, wherein the third sterilization temperature is greater than the first sterilization temperature.
If the temperature of the indoor heat exchanger is greater than or equal to the third sterilization temperature or the temperature change rate of the indoor heat exchanger is greater than or equal to the set change rate, at least one of increasing the rotating speed of the indoor fan, reducing the frequency of the compressor and increasing the throttling device is performed to reduce the temperature of the indoor heat exchanger or reduce the temperature change rate of the indoor heat exchanger, so that the temperature rising speed of the indoor heat exchanger is controlled; and if the temperature of the indoor heat exchanger is lower than the third sterilization temperature or the temperature change rate of the indoor heat exchanger is lower than the set change rate, continuously judging whether the air conditioner operates for a fourth set time in the heating state.
It can be understood that if the air conditioner does not operate for the fourth set time in the heating state, determining whether the temperature Tx of the indoor heat exchanger is greater than or equal to a third sterilization temperature T3, wherein the third sterilization temperature T3 is greater than the first sterilization temperature T1, if the temperature Tx of the indoor heat exchanger is greater than or equal to the third sterilization temperature T3, adjusting at least one of the rotation speed of the indoor fan, the frequency of the compressor and the opening degree of the throttling device to reduce the temperature of the indoor heat exchanger, thereby controlling the temperature increase speed of the indoor heat exchanger, and if the temperature Tx of the indoor heat exchanger is less than the third sterilization temperature T3, continuing to determine whether the air conditioner operates for the fourth set time in the heating state; or, judging whether the temperature change rate of the indoor heat exchanger is greater than or equal to a set change rate K, if the temperature change rate of the indoor heat exchanger is greater than or equal to the set change rate K, adjusting at least one of the rotating speed of the indoor fan, the frequency of the compressor and the opening degree of the throttling device to reduce the temperature change rate of the indoor heat exchanger so as to control the temperature rise speed of the indoor heat exchanger, and if the temperature change rate of the indoor heat exchanger is less than the set change rate K, continuously judging whether the air conditioner operates for a fourth set time in the heating state.
Wherein, the "adjusting at least one of the rotating speed of the indoor fan, the frequency of the compressor and the throttling device" may be one of the adjusting, or two or three of the adjusting. When at least two of the rotating speed of the indoor fan, the frequency of the compressor and the throttling device are adjusted, the at least two parameters can be adjusted simultaneously or sequentially. By adopting at least one of the aspects of increasing the rotating speed of the indoor fan, reducing the frequency of the compressor and increasing the opening of the throttling device, the temperature of the indoor heat exchanger can be reduced or the temperature change rate of the indoor heat exchanger can be reduced.
Therefore, by detecting the preposed heating operation time (fourth set time) and the temperature of the indoor heat exchanger or the temperature change rate of the indoor heat exchanger, if the temperature of the indoor heat exchanger is higher or the temperature change rate of the indoor heat exchanger is faster, the temperature of the indoor heat exchanger or the temperature change rate of the indoor heat exchanger can be reduced by adjusting at least one of the rotating speed of the indoor fan, the frequency of the compressor and the throttling device, and the low-frequency liquid return for avoiding high-temperature high-pressure rapid jump stop and compression can be subjected to buffer control.
Also, by setting the third sterilization temperature T3 to be greater than the first sterilization temperature T1, the operation efficiency and sterilization efficiency of the air conditioner in the high-temperature sterilization mode can be improved.
Optionally, the value range of the set change rate K may be 0.5 to 5 ℃/min, for example, the value range of the set change rate K may be 1 to 3 ℃/min. Therefore, the low-frequency liquid return for avoiding high-temperature high-pressure rapid stop and compression through better buffer control can be realized, and meanwhile, the operating efficiency and the sterilization efficiency of the air conditioner in a high-temperature sterilization mode can be considered.
In some embodiments of the present invention, as shown in fig. 6, during the whole process of the air conditioner in the high-temperature sterilization mode, the temperature of the indoor heat exchanger is detected in real time, and whether the current temperature of the indoor heat exchanger is greater than the protection temperature is determined, if yes, the compressor of the air conditioner is stopped. The bacteria and viruses are not resistant to high temperature, the higher the sterilization and disinfection temperature is, the better the sterilization and disinfection temperature is theoretically, but for a system of an air conditioner, the system pressure upper limit can be considered from the reliability, and the temperature of the indoor heat exchanger can correspond to one upper temperature limit. Therefore, by setting an upper temperature limit (namely protection temperature) of the indoor heat exchanger, when the temperature of the indoor heat exchanger is higher than the protection temperature, the compressor is stopped, the system instability or damage caused by overhigh system pressure is avoided, and the shutdown protection of the air conditioner is realized.
Optionally, the protection temperature is in a range of 62-96 ℃. Therefore, the indoor heat exchanger of the air conditioner can operate at a higher temperature, an effective sterilization and disinfection effect is achieved, the reliability of system operation can be guaranteed, and shutdown protection of the air conditioner is better achieved. Wherein, the value range of the protection temperature of the R22 refrigerant type air conditioner is 68-73 ℃; the protection temperature of the air conditioners R410A and R32 ranges from 62 ℃ to 66 ℃; the R290 refrigerant type air conditioner has the protection temperature ranging from 90 ℃ to 96 ℃.
In some embodiments of the present invention, as shown in fig. 6, after the compressor is stopped for a set stop time, the compressor is restarted, after the compressor is stopped, the temperature of the indoor heat exchanger starts to decrease, after the compressor is stopped for the set stop time, the temperature of the indoor heat exchanger can decrease to be lower, at which time the compressor can be restarted, and if the set stop time is not reached, whether the set stop time is reached is continuously detected. Or continuously detecting the temperature of the indoor heat exchanger after the compressor is stopped, judging whether the temperature of the indoor heat exchanger is lower than the recovery temperature, and restarting the compressor if the temperature of the indoor heat exchanger is lower than the recovery temperature. After the compressor is stopped, the temperature of the indoor heat exchanger starts to decrease, and when the temperature of the indoor heat exchanger decreases below the recovery temperature, the compressor can be restarted. Therefore, the compressor is restarted after the compressor is stopped for a period of time or the temperature of the indoor heat exchanger is reduced to a certain temperature, so that the system can be ensured to continue to restart after the compressor is stopped while the shutdown protection is realized, and the working efficiency, the sterilization efficiency and the sterilization and disinfection effects of the air conditioner in a high-temperature sterilization mode are ensured.
Optionally, the value range of the set shutdown time is 1-30 min. Preferably, the time is 1-15 min, for example, the value range of the set shutdown time is 3-5 min. Therefore, the pressure of the system can be released within enough time, so that the temperature of the indoor heat exchanger can be reduced to a lower temperature before the compressor is restarted, the reliable operation of the system is ensured, and the shutdown frequency of the compressor is reduced; and, the work efficiency and the sterilization efficiency of the air conditioner in the high-temperature sterilization mode can be improved.
Optionally, the recovery temperature is no greater than 48 ℃. For example, the recovery temperature can be 38-48 ℃, so that the reliable operation of the system can be ensured, and the shutdown frequency of the compressor is reduced; and, the work efficiency and the sterilization efficiency of the air conditioner in the high-temperature sterilization mode can be improved.
In the above description, the temperatures of the respective indoor heat exchangers have the following relationship: the recovery temperature is less than or equal to the first sterilization temperature and less than or equal to the third sterilization temperature and less than or equal to the second sterilization temperature and less than or equal to the protection temperature.
In some embodiments of the present invention, as shown in fig. 6, before the compressor is restarted, it is determined whether the number of times of stoppage of the compressor is greater than the maximum number of times of stoppage. If the shutdown times of the compressor are greater than the maximum shutdown times, controlling the air conditioner to exit the high-temperature sterilization mode; and if the shutdown times of the compressor are not more than the maximum shutdown times, maintaining the current state or the air supply of the indoor fan or the indoor fan stops running for waiting, continuously judging whether the compressor meets the restart conditions or not, and restarting when the compressor meets the restart conditions. Therefore, the damage to the compressor and a system caused by frequent shutdown of the compressor can be avoided, and the service life of the air conditioner is prolonged.
After the compressor is restarted, the process of judging whether the air conditioner operates for the fourth set time in the heating state may be returned to and sequentially performed downward.
Optionally, the maximum shutdown time is 1-30. Preferably 3 to 10. Therefore, the damage to the compressor and a system caused by frequent shutdown of the compressor can be better avoided, and the service life of the air conditioner is better prolonged. And moreover, the working efficiency and the sterilization efficiency of the air conditioner in a high-temperature sterilization mode can be ensured.
In some embodiments of the present invention, as shown in fig. 2 and 4, when the air conditioner enters the high temperature sterilization mode and the air conditioner is in heating operation, the initial angle of the air guide is adjusted to be within the sterilization angle interval. Therefore, the hot air blown out in the high-temperature sterilization process of the air conditioner can be prevented from scalding people.
In some embodiments of the present invention, when the air conditioner enters the high temperature sterilization mode and the air conditioner is in heating operation, the initial value of the rotation speed of the indoor fan, the initial value of the frequency F0 of the compressor, the initial value of the opening degree P0 of the throttling device, and the initial value W0 of the rotation speed of the outdoor fan do not exceed the maximum interval value corresponding to the current outdoor temperature. Because the operation under the heating mode is to extract the outdoor air heat to the indoor heat exchanger and the indoor air, the higher the outdoor temperature is, the more easily the indoor temperature rises, the faster the system pressure rises, the more quickly the system pressure rises, and the extraction heat needs to be reduced to prevent the system pressure from being too fast or too high out of control, so the operation frequency of the compressor and the rotating speed of the outdoor fan need to be correspondingly limited according to the outdoor temperature from the reliability aspect, and the stable and reliable operation of the air conditioning system can be ensured.
Further, the initial value of the rotation speed of the indoor fan, the initial value of the frequency of the compressor, the initial value of the opening degree of the throttle device, and the initial value of the rotation speed of the outdoor fan may be set to be close to the maximum value of the section corresponding to the current outdoor temperature, or the initial value of the rotation speed of the indoor fan, the initial value of the frequency of the compressor, the initial value of the opening degree of the throttle device, and the initial value of the rotation speed of the outdoor fan may be set to be the maximum value of the section corresponding to the current outdoor temperature. Therefore, the efficiency of system regulation can be accelerated by setting the initial values of all the parameters to be larger through the initialization of all the parameters, the stable regulation of sterilization is achieved, and the problem of wide-range reliable operation of high-temperature and low-temperature operation is solved.
For example, the initial value of the indoor fan speed may be set to 60% to 100% of the rated indoor fan speed. For example, the initial opening degree of the throttling device may be adjusted after the operation according to the maximum valve flow or a certain fixed value, but considering the adjustment speed, the initial opening degree may be determined by touching the corresponding compressor frequency and the outdoor fan rotation speed limit value under the outdoor environment temperature, so as to reduce the adjustment time.
The maximum values of the above parameters in different outdoor temperature ranges are illustrated with reference to fig. 10-12.
The first outdoor temperature range is-10 to 0 ℃ (see section F in fig. 10 to 12), the second outdoor temperature range is 0 to 10 ℃ (see section E in fig. 10 to 12), the third outdoor temperature range is 10 to 20 ℃ (see section D in fig. 10 to 12), the fourth outdoor temperature range is 20 to 30 ℃ (see section C in fig. 10 to 12), and the fifth outdoor temperature range is 30 to 40 ℃ (see section B in fig. 10 to 12). The maximum frequency Fmax of the compressor in the first outdoor temperature interval, the second outdoor temperature interval, the third outdoor temperature interval, the fourth outdoor temperature interval and the fifth outdoor temperature interval is respectively 100Hz, 90Hz, 80Hz, 60Hz and 30 Hz. The maximum rotating speeds Wmax of the outdoor fan in the first outdoor temperature interval, the second outdoor temperature interval, the third outdoor temperature interval, the fourth outdoor temperature interval and the fifth outdoor temperature interval are respectively 850rpm, 750rpm, 660rpm, 550rpm and 450 rpm. The maximum opening degree Pmax of the throttle device in the first outdoor temperature interval, the second outdoor temperature interval, the third outdoor temperature interval, the fourth outdoor temperature interval and the fifth outdoor temperature interval is 250PPM, 300PPM, 350PPM, 400PPM and 450PPM respectively.
In some embodiments of the present invention, as shown in fig. 1 to 4, the air conditioner starts to count time when entering the high temperature sterilization mode and exits from the high temperature sterilization mode after running for the fifth cumulative setting time, so that the air conditioner can automatically exit after running for the fifth cumulative setting time in the high temperature sterilization mode, which not only can ensure sterilization and disinfection effects, but also can reduce or avoid the problems of compressor damage caused by long-term running under severe conditions, the service life of electronic control components and deformation of plastic parts, and the reliability problem caused by failing to reach conditions and exit when running under severe conditions. Or the air conditioner exits the high-temperature sterilization mode after receiving the signal for exiting the high-temperature sterilization mode. Therefore, the user can select the operation time of the air conditioner in the high-temperature sterilization mode according to the requirement.
Optionally, the value of the fifth setting time is greater than 10 min. Preferably 30-130 min. Therefore, the sterilization effect is ensured, and the stable and reliable operation of the air conditioner can be ensured. Preferably, the value range of the fifth set time is 35-90 min.
Further, when the outdoor temperature is above 15 ℃, the value range of the fifth set time is 35-50 min; when the outdoor temperature is 5-15 ℃, the value range of the fifth set time is 40-70 min; and when the outdoor temperature is below 5 ℃, the value range of the fifth set time is 50-90 min. Therefore, the fifth set time is determined according to the outdoor temperature, the sterilization effect is ensured, and the stable and reliable operation of the air conditioner can be ensured.
No matter the indoor heat exchanger disinfects the disinfection or the outdoor heat exchanger disinfects the disinfection, all receive the influence of indoor outer temperature, along with the rising of temperature, the intensification of heat exchanger is easier, and the disinfection of disinfecting realizes more easily, but mainly receives the influence of outdoor temperature. Therefore, the stable time in the early stage of sterilization and disinfection and the partition control of the duration time of sterilization and disinfection can be carried out by combining the outdoor temperature. The temperature of the subareas can be set according to different requirements of an air conditioning system, energy efficiency grade, initial condition setting and sterilization and disinfection requirements. Specifically, fig. 9 shows the relationship between the fifth set time T5 and the outdoor temperature T4.
In some embodiments, referring to fig. 1 to 4, when any one of the first set time, the second set time, the third set time and the fifth set time is satisfied during the air conditioner is operated in the high-temperature sterilization mode, the air conditioner may exit the high-temperature sterilization mode.
In some embodiments of the present invention, the air conditioner has an air guide angle within a sterilization angle range throughout the entire high temperature sterilization mode, and the sterilization angle may be the same as the sterilization angle in the anti-blow-through mode when the air conditioner has the anti-blow-through function, the sterilization angle may be the same as the sterilization angle in the non-wind-sensing mode when the air conditioner has the non-wind-sensing function, and the air conditioner may be adjusted as follows when the air conditioner does not have the above two functions.
When the air guide is located the angle interval that disinfects, the value range of the contained angle beta between air guide and the vertical upward direction is 0~ 120. Therefore, the air guide piece extends upwards in an inclined manner from back to front or inclines downwards in a direction from back to front by a small angle, and the air conditioner can avoid the problem that high-temperature wind scalds people in the whole high-temperature sterilization mode process by enabling the angle of the air guide piece to be always in a sterilization angle interval. For example, the air conditioner is a split wall-mounted air conditioner, and the value range of beta is 0-120 degrees. When a plurality of air dispersion holes are formed in the air guide, the air guide can close the air outlet, and an included angle beta between the air guide and the vertical upward direction is 0 degree; when the air guide is of a solid structure (namely, when the air guide is not provided with a plurality of air dispersion holes), the air guide opens at least one part of the air outlet, and at the moment, the included angle beta between the air guide and the vertical upward direction is larger than 0 degree.
In some optional embodiments of the present invention, when the air conditioner is a split floor type air conditioner, a value of β is in a range of 0 to 75 °, so that the wind guide extends obliquely upward in a rear-to-front direction. Therefore, when the air conditioner is a split floor type air conditioner, the problem that people are scalded by high-temperature wind can be better avoided. When a plurality of air dispersion holes are formed in the air guide, the air guide can close the air outlet, and an included angle beta between the air guide and the vertical upward direction is 0 degree; when the air guide is of a solid structure (namely, when the air guide is not provided with a plurality of air dispersion holes), the air guide opens at least one part of the air outlet, and at the moment, the included angle beta between the air guide and the vertical upward direction is larger than 0 degree.
For example, referring to fig. 7 and 8, when the air guide is located at the upper limit position of the sterilization angle interval (refer to position a in fig. 7 and 8), an included angle β between the air guide and the vertical upward direction is a minimum value β min, and the first set angle may be the minimum value β min; when the air guide is located at the lower limit position of the sterilization angle interval (see position B in fig. 7 and 8), the angle β between the air guide and the vertical upward direction may be the maximum value β max, and the second set angle may be the maximum value β max.
The high-temperature sterilization mode also comprises the step of carrying out initialization processing on the air conditioner when entering the high-temperature sterilization mode. The air conditioner is initialized according to the current indoor and outdoor ambient temperatures to meet the requirement of entering a high-temperature sterilization mode rapidly under different environments.
The initialization processing comprises the adjustment of one or more of an indoor fan, an outdoor fan, a compressor, a throttling element and an air guide angle of the air conditioner.
Taking the indoor fan initialization as an example, the indoor fan speed R0 may be initialized according to the indoor temperature T0, for example, the indoor fan initial speed R0 is positively correlated to the indoor temperature. That is, the higher the indoor temperature is, the greater the initial rotation speed R0 of the indoor fan is. Of course, the initial operation of the indoor fan may be to set the initial indoor fan speed R0 to the low-range wind speed. That is, when entering the high temperature sterilization mode, the rotation speed of the indoor fan is adjusted to the low-gear wind speed. Wherein, when indoor fan has a plurality of gears, adjust indoor fan to lower gear.
For example, when the indoor fan has two gears, namely a high gear and a low gear, the indoor fan is in the low gear, that is, the rotating speed of the indoor fan is in the low gear wind speed; when the indoor fan has more than three gears, the rotating speed of the indoor fan is in a lower gear. Specifically, when the indoor fan has a first gear to a fifth gear from low to high, the low-gear wind speed may be the first gear or the second gear of the indoor fan, and preferably, the indoor fan speed is the low-gear wind speed when the indoor fan is in the first gear.
Fig. 13 is a schematic diagram illustrating a corresponding relationship between an initial indoor fan rotation speed R0 and an indoor temperature T0 in a high-temperature sterilization mode according to an embodiment.
In addition, when the high-temperature sterilization mode is entered, the indoor fan can be adjusted to a lower rotating speed range (for example, the rotating speed range is in a predetermined percentage range of the highest rotating speed (for example, the rotating speed range is in a range of 5% -80% of the highest rotating speed), and the rotating speed of the indoor fan is adjusted according to the indoor temperature T0 in the range.
Taking the outdoor fan initialization as an example, the outdoor fan speed may be initialized according to the outdoor temperature T4, and the outdoor fan initial speed is inversely related to the outdoor temperature T4. That is, the higher the outdoor temperature T4 is, the lower the outdoor fan initial rotation speed W0 is; conversely, the lower the outdoor temperature T4, the higher the outdoor fan initial rotation speed W0. Thereby maintaining the stability of the system under the condition of high-temperature sterilization.
Fig. 11 is a schematic diagram illustrating a corresponding relationship between an initial rotation speed W0 of an outdoor fan and an outdoor temperature T4 in a high-temperature sterilization mode according to an embodiment.
Taking the compressor initialization as an example, the compressor frequency may be initialized according to the outdoor temperature T4, the compressor initial frequency F0 is inversely related to the outdoor temperature T4; that is, the higher the outdoor temperature T4, the lower the compressor initial frequency F0; conversely, the lower the outdoor temperature T4, the higher the compressor initial frequency F0. Therefore, the system can be maintained to be stable under the condition of high-temperature sterilization, and the compressor and the air conditioning system can be promoted to be stably operated.
Fig. 10 is a schematic diagram illustrating a correspondence relationship between an initial frequency F0 of the compressor and an outdoor temperature T4 in a high-temperature sterilization mode according to an embodiment.
Taking the throttle element initialization as an example, the throttle element opening degree is initialized according to the outdoor temperature T4, and the throttle element initial opening degree P0 is positively correlated with the outdoor temperature T4. That is, the higher the outdoor temperature T4, the larger the throttle element initial opening degree P0; conversely, the lower the outdoor temperature T4, the smaller the throttle element initial opening P0. Therefore, the system can be maintained to be stable under the condition of high-temperature sterilization, and the compressor and the air conditioning system can be promoted to be stably operated.
Fig. 12 is a schematic diagram illustrating a corresponding relationship between an initial opening P0 of the throttling element and an outdoor temperature T4 in a high-temperature sterilization mode according to an embodiment.
Taking the wind guide angle initialization as an example, the wind guide angle of the air conditioner is initialized to the sterilization angle. Wherein the sterilization angle can be opened a smaller angle for the air conditioner to the circulation of air on the surface of the indoor heat exchanger can be reduced, so that the indoor heat exchanger can reach the sterilization temperature quickly.
According to the air conditioner provided by the embodiment of the invention, the air conditioner is provided with the air inlet and the air outlet, the air conditioner comprises an indoor fan, an indoor heat exchanger, a throttling device, a compressor, an outdoor fan, an outdoor heat exchanger and a control module, wherein the compressor, the outdoor heat exchanger, the throttling device and the indoor heat exchanger are sequentially connected and form refrigerant circulation, a rotatable air guide piece is arranged at the air outlet, the working mode of the air conditioner comprises a high-temperature sterilization mode, and after the air conditioner enters the high-temperature sterilization mode, the control module controls the air conditioner to work according to the sterilization control method.
The sterilization control method of the air conditioner in the high-temperature sterilization mode may refer to the above, and will not be described herein again.
According to the air conditioner of the embodiment of the invention, after the air conditioner enters a high-temperature sterilization mode, the temperature of the indoor heat exchanger is detected and whether the sterilization condition is met is judged, if the temperature of the indoor heat exchanger is not met, at least one of the air outlet area, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotating speed of the outdoor fan and the electric auxiliary heat is regulated by regulating the air guide piece of the air conditioner, so that the sterilization and disinfection can be realized, and before the judgment that the sterilization condition is met, whether the pressure ratio or the pressure difference of the air conditioner meets the condition that the compressor stably operates is judged, if the pressure ratio or the pressure difference does not meet the condition that the compressor stably operates is judged, at least one of the rotating speed of the outdoor fan, the frequency of the compressor, the opening degree of the throttling device and the rotating speed of the indoor fan is regulated, the air conditioner can be better ensured to operate in a reliable range during the sterilization in a low-temperature environment, the damage of the compressor when the compressor is operated under the severe working condition of low-temperature environment (such as ultra-low temperature of minus 7 ℃ and below) sterilization is avoided.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (36)

1. A sterilization control method of an air conditioner is characterized by comprising the following steps:
controlling the air conditioner to enter a high-temperature sterilization mode;
controlling the heating operation of the air conditioner;
detecting the high pressure and the low pressure of the air conditioner, judging whether the pressure ratio of the high pressure to the low pressure is greater than or equal to a preset ratio or judging whether the pressure difference between the high pressure and the low pressure is greater than or equal to a preset difference, and if the pressure ratio is greater than or equal to the preset ratio or the pressure difference is greater than or equal to the preset difference, at least one of increasing the rotating speed of an outdoor fan, reducing the frequency of a compressor, increasing the opening of a throttling device and increasing the rotating speed of an indoor fan is carried out;
if the pressure ratio is smaller than the preset ratio or the pressure difference is smaller than the preset difference, detecting the temperature of the indoor heat exchanger and judging whether the temperature of the indoor heat exchanger is lower than a first sterilization temperature,
if so, adjusting the angle of the air guide member to reduce the air outlet area of the air outlet, reducing the rotating speed of the indoor fan, increasing the frequency of the compressor, reducing the opening of the throttling device, increasing the rotating speed of the outdoor fan and starting at least one of electric auxiliary heating to increase the temperature of the indoor heat exchanger,
judging whether the air conditioner operates for a fourth set time in a heating state before judging whether the pressure ratio of the high pressure to the low pressure is greater than or equal to a preset ratio or whether the pressure difference between the high pressure and the low pressure is greater than or equal to a preset difference value,
if yes, judging whether the pressure ratio of the high pressure to the low pressure is larger than or equal to a preset ratio or judging whether the pressure difference between the high pressure and the low pressure is larger than or equal to a preset difference value;
if not, judging whether the temperature of the indoor heat exchanger is greater than or equal to a third sterilization temperature or judging whether the temperature change rate of the indoor heat exchanger is greater than or equal to a set change rate, wherein the third sterilization temperature is greater than the first sterilization temperature,
if the temperature of the indoor heat exchanger is greater than or equal to a third sterilization temperature or the temperature change rate of the indoor heat exchanger is greater than or equal to a set change rate, at least one of increasing the rotating speed of the indoor fan, reducing the frequency of the compressor and increasing the throttling device is performed to reduce the temperature of the indoor heat exchanger or reduce the temperature change rate of the indoor heat exchanger; and if the temperature of the indoor heat exchanger is lower than the third sterilization temperature or the temperature change rate of the indoor heat exchanger is lower than the set change rate, continuously judging whether the air conditioner operates for the fourth set time in the heating state.
2. The sterilization control method of an air conditioner according to claim 1, wherein the first sterilization temperature has a value range of 56-94 ℃.
3. The sterilization control method of an air conditioner according to claim 1, wherein the value range of the preset ratio is 1-18.
4. The sterilization control method of an air conditioner according to claim 1, wherein the preset difference value ranges from 0.5 to 4.1 MPa.
5. The sterilization control method of an air conditioner as claimed in claim 1, wherein the high temperature sterilization mode is exited after timing is started after at least one of adjusting an angle of the air guide to reduce an air outlet area of the air outlet, reducing a rotation speed of the indoor fan, increasing a frequency of the compressor, reducing an opening degree of the throttle device, increasing a rotation speed of the outdoor fan, and turning on the electric auxiliary heating until a first set time is operated.
6. The sterilization control method of an air conditioner according to claim 5, wherein the first set time is 30-90 min.
7. The sterilization control method of an air conditioner according to claim 1, wherein it is judged whether the temperature of the indoor heat exchanger is higher than a second sterilization temperature while it is judged whether the temperature of the indoor heat exchanger is lower than a first sterilization temperature,
if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, adjusting the angle of the air guide piece to increase at least one of the air outlet area of the air outlet, the rotating speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotating speed of the outdoor fan and the gradual exit of the outdoor fan without wind feeling so as to reduce the temperature of the indoor heat exchanger, wherein the second sterilization temperature is higher than the first sterilization temperature.
8. The sterilization control method of an air conditioner according to claim 7, wherein the second sterilization temperature has a value range of 56-96 ℃.
9. The sterilization control method of an air conditioner according to claim 7, wherein the difference between the second sterilization temperature and the first sterilization temperature is not less than 0.5 ℃.
10. The sterilization control method of an air conditioner according to claim 9, wherein a difference between the second sterilization temperature and the first sterilization temperature is in a range of 1 to 3 ℃.
11. The sterilization control method of an air conditioner as claimed in claim 7, wherein the high temperature sterilization mode is exited after at least one of increasing the air outlet area of the air outlet, increasing the rotation speed of the indoor fan, decreasing the frequency of the compressor, increasing the opening degree of the throttle device, and decreasing the rotation speed of the outdoor fan by adjusting the angle of the air guide is performed, and then the timer is started until a second set time is operated.
12. The sterilization control method of an air conditioner according to claim 11, wherein the second set time is 10-60 min.
13. The sterilization control method of an air conditioner according to claim 7, wherein if the temperature of the indoor heat exchanger is determined to be between the first sterilization temperature and the second sterilization temperature, the current operation state of the air conditioner is maintained, and the high temperature sterilization mode is exited after a time is counted until the air conditioner is operated for a third set time.
14. The sterilization control method of an air conditioner according to claim 13, wherein the value of the third setting time is greater than 10 min.
15. The sterilization control method of an air conditioner according to claim 7, wherein any one of the angle of the air guide, the rotational speed of the indoor fan, the frequency of the compressor, the opening degree of the throttle device, and the rotational speed of the outdoor fan is adjusted in steps, and the adjustment step of increasing the system pressure is smaller than the adjustment step of decreasing the system pressure in the process of adjusting any one of the angle of the air guide, the rotational speed of the indoor fan, the frequency of the compressor, the opening degree of the throttle device, and the rotational speed of the outdoor fan.
16. The sterilization control method of an air conditioner according to claim 7, wherein an adjustment rule of any one of an angle of the air guide, a rotational speed of the indoor fan, a frequency of the compressor, an opening degree of the throttling device, and a rotational speed of the outdoor fan is one of a first adjustment rule, a second adjustment rule, a third adjustment rule, and a fourth adjustment rule, wherein the first adjustment rule is stepwise adjusted in steps according to a step size, the second adjustment rule is stepwise adjusted in steps according to an adjustment step size which is a product of a temperature difference of the heat exchanger and a gain coefficient, the third adjustment rule is stepwise adjusted in steps according to a percentage of a current value, the fourth adjustment rule is stepwise adjusted in steps according to a percentage of a rated value, and when the system pressure is increased, the temperature difference of the heat exchanger is an absolute value of a difference between a current temperature of the indoor heat exchanger and a first sterilization temperature, when the system pressure is reduced, the heat exchanger temperature difference value refers to an absolute value of a difference value between the current temperature of the indoor heat exchanger and the second sterilization temperature.
17. The sterilization control method of an air conditioner according to claim 1, wherein the fourth setting time is in a range of 1-60 min.
18. The sterilization control method of an air conditioner according to claim 17, wherein when the outdoor temperature is above 15 ℃, the value of the fourth setting time ranges from 3 to 10 min; when the outdoor temperature is 5-15 ℃, the value range of the fourth set time is 5-15 min; and when the outdoor temperature is below 5 ℃, the value range of the fourth set time is 8-20 min.
19. The sterilization control method of an air conditioner according to claim 17, wherein the air conditioner enters the high temperature sterilization mode while detecting whether a current operation state of the air conditioner is in a heating state,
if so, the air conditioner keeps heating operation, and the value range of the fourth set time is 1-30 min;
if not, controlling the air conditioner to be switched to a heating state for operation, wherein the value range of the fourth set time is 1-60 min.
20. The sterilization control method of an air conditioner according to claim 1, wherein the set change rate has a value range of 0.5 to 5 ℃/min.
21. The sterilization control method of an air conditioner according to claim 1, wherein the temperature of the indoor heat exchanger is detected in real time during the whole process that the air conditioner is in the high-temperature sterilization mode, and whether the current temperature of the indoor heat exchanger is greater than a protection temperature is judged, if yes, a compressor of the air conditioner is stopped.
22. The sterilization control method of an air conditioner according to claim 21, wherein the protection temperature has a value range of 62 to 96 ℃.
23. The sterilization control method of an air conditioner according to claim 21, wherein the compressor is restarted after the compressor is stopped for a set stop time; or continuously detecting the temperature of the indoor heat exchanger after the compressor is stopped, judging whether the temperature of the indoor heat exchanger is lower than a recovery temperature, and restarting the compressor if the temperature of the indoor heat exchanger is lower than the recovery temperature.
24. The sterilization control method of an air conditioner according to claim 23, wherein the set shutdown time is in a range of 1-30 min.
25. The sterilization control method of an air conditioner according to claim 23, wherein the recovery temperature is not more than 48 ℃.
26. The sterilization control method of an air conditioner according to claim 23, wherein before the compressor is restarted, it is determined whether the number of times of stopping the compressor is greater than a maximum number of times of stopping the compressor, and if so, the air conditioner is controlled to exit the high temperature sterilization mode.
27. The sterilization control method of an air conditioner according to claim 26, wherein the maximum number of times of shutdown is in a range of 1 to 30.
28. The sterilization control method of an air conditioner according to claim 1, wherein when the air conditioner enters a high temperature sterilization mode and the air conditioner is in heating operation, the initial angle of the air guide member is adjusted to be within a sterilization angle interval.
29. The sterilization control method of an air conditioner according to claim 1, wherein when the air conditioner enters the high temperature sterilization mode and the air conditioner is in heating operation, the initial value of the rotation speed of the indoor fan, the initial value of the frequency of the compressor, the initial value of the opening degree of the throttling device, and the initial value of the rotation speed of the outdoor fan do not exceed the maximum value of the section corresponding to the current outdoor temperature.
30. The sterilization control method of an air conditioner according to claim 1, wherein the air conditioner starts to count time when entering the high temperature sterilization mode and exits the high temperature sterilization mode after running cumulatively for a fifth set time; or the air conditioner exits the high-temperature sterilization mode after receiving the signal for exiting the high-temperature sterilization mode.
31. The sterilization control method of an air conditioner according to claim 30, wherein the value of the fifth setting time is greater than 10 min.
32. The sterilization control method of an air conditioner according to claim 31, wherein the value of the fifth setting time is 35-50 min when the outdoor temperature is above 15 ℃; when the outdoor temperature is 5-15 ℃, the value range of the fifth set time is 40-70 min; and when the outdoor temperature is below 5 ℃, the value range of the fifth set time is 50-90 min.
33. The air conditioner sterilization control method as claimed in any one of claims 1 to 32, wherein during the whole high temperature sterilization mode, the angle of the air guide is always within a sterilization angle interval, and when the air guide is within the sterilization angle interval, the angle β between the air guide and the vertical upward direction is 0 to 120 °.
34. The air conditioner sterilization control method according to claim 33, wherein when the air conditioner is a split floor type air conditioner, the value of β is in a range of 0 to 75 °.
35. The sterilization control method of an air conditioner according to any one of claims 1 to 32, wherein the high temperature sterilization mode further comprises performing an initialization process for the air conditioner upon entering the high temperature sterilization mode, the initialization process comprising:
initializing the rotating speed of an indoor fan according to the indoor temperature T0, wherein the initial rotating speed R0 of the indoor fan is positively correlated with the indoor temperature or the initial rotating speed R0 of the indoor fan is set to be a low-grade wind speed;
initializing the rotating speed of the outdoor fan according to the outdoor temperature T4, wherein the initial rotating speed W0 of the outdoor fan is inversely related to the outdoor temperature T4;
initializing a compressor frequency according to the outdoor temperature T4, wherein the compressor initial frequency F0 is inversely related to the outdoor temperature T4;
initializing the opening degree of the throttling element according to the outdoor temperature T4, wherein the initial opening degree P0 of the throttling element is positively correlated with the outdoor temperature T4;
initializing the air guide angle of the air conditioner to a sterilization angle.
36. An air conditioner is characterized in that the air conditioner is provided with an air inlet and an air outlet, the air conditioner comprises an indoor fan, an indoor heat exchanger, a throttling device, a compressor, an outdoor fan, an outdoor heat exchanger and a control module, wherein the compressor, the outdoor heat exchanger, the throttling device and the indoor heat exchanger are sequentially connected and form refrigerant circulation, a rotatable air guide piece is arranged at the air outlet, the working mode of the air conditioner comprises a high-temperature sterilization mode, and after the air conditioner enters the high-temperature sterilization mode, the control module controls the air conditioner to work according to the sterilization control method of any one of claims 1-35.
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CN114396707B (en) * 2022-01-14 2023-02-28 珠海格力电器股份有限公司 Anti-freezing control method and device for air conditioner
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