CN111692726A - Air conditioner and sterilization control method thereof - Google Patents

Air conditioner and sterilization control method thereof Download PDF

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Publication number
CN111692726A
CN111692726A CN202010495454.6A CN202010495454A CN111692726A CN 111692726 A CN111692726 A CN 111692726A CN 202010495454 A CN202010495454 A CN 202010495454A CN 111692726 A CN111692726 A CN 111692726A
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China
Prior art keywords
temperature
sterilization
air conditioner
heat exchanger
indoor heat
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CN202010495454.6A
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CN111692726B (en
Inventor
徐振坤
黄剑云
席战利
唐亚林
毕然
黄招彬
李玉
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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
    • F24F2140/20—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)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (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 sterilization control method of the air conditioner comprises the following steps: controlling the air conditioner to enter a high-temperature sterilization mode; controlling the heating operation of the air conditioner; judging the relation between the temperature of the indoor heat exchanger and a first sterilization temperature and a second sterilization temperature, wherein the first sterilization temperature is lower than the second sterilization temperature; and if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, controlling the opening degree of the throttling device to be reduced, and if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, controlling the opening degree of the throttling device to be increased. According to the sterilization control method of the air conditioner, the temperature of the indoor heat exchanger can be adjusted to meet the sterilization condition through the priority adjusting and throttling device so as to realize sterilization and disinfection, and the control method is simple and convenient to realize.

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. Therefore, an object of the present invention is to provide a sterilization control method for an air conditioner, which can adjust the temperature of an indoor heat exchanger to meet sterilization conditions by a priority throttle device to achieve sterilization and disinfection.
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 first aspect of the present invention includes:
controlling the air conditioner to enter a high-temperature sterilization mode;
controlling the heating operation of the air conditioner;
judging the relation between the temperature of the indoor heat exchanger and a first sterilization temperature and a second sterilization temperature, wherein the first sterilization temperature is lower than the second sterilization temperature;
and if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, controlling the opening degree of the throttling device to be reduced, and if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, controlling the opening degree of the throttling device to be increased.
According to the sterilization control method of the air conditioner, after the air conditioner enters the high-temperature sterilization mode, the opening degree of the throttling device is controlled to be reduced or increased so that the temperature of the indoor heat exchanger is between the first sterilization temperature and the second sterilization temperature, bacteria and viruses on the indoor heat exchanger can be effectively killed, and the control method is simple and convenient to achieve.
According to some embodiments of the present invention, after the opening degree of the throttling device is controlled to be reduced to a first set opening degree, if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, the angle of the air guide is adjusted to reduce the air outlet area of the air outlet, increase the frequency of the compressor, reduce the rotation speed of the indoor fan, increase the rotation speed of the outdoor fan, and turn on at least one of the electric auxiliary heat to increase the temperature of the indoor heat exchanger; after the opening degree of the throttling device is controlled to be increased to a second set opening degree, if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, the angle of the air guide piece is adjusted to increase at least one of the air outlet area of the air outlet, the frequency of the compressor, the rotating speed of the indoor fan and the rotating speed of the outdoor fan, so that the temperature of the indoor heat exchanger is reduced.
According to some embodiments of the present invention, if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, the high-temperature sterilization mode is exited after the time is counted until the air conditioner operates for a first set time when the opening degree of the throttling device is adjusted to the first set opening degree; and if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, starting to time when the opening degree of the throttling device is adjusted to the second set opening degree until the air conditioner runs for a second set time, and then exiting the high-temperature sterilization mode.
According to some embodiments of the invention, the first set time is 30-90 min, the first set opening degree is 0-250 PPM, the second set time is 10-60 min, and the second set opening degree is 350-650 PPM.
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 second sterilization temperature is in a range of 56-96 ℃.
According to some optional embodiments of the invention, the difference between the second sterilization temperature and the first sterilization temperature is not less than 0.5 ℃.
Optionally, the value range of the difference between the second sterilization temperature and the first sterilization temperature is 1-3 ℃.
In some optional embodiments of the present invention, if it is determined that the temperature of the indoor heat exchanger is 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.
Optionally, the value range of the third set time is 10-60 min.
According to some embodiments of the present invention, the adjustment rule of any one of the angle of the air guide, the opening degree of the throttling device, the frequency of the compressor, the rotational speed of the indoor fan, 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 the 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, the relationship between the temperature of the indoor heat exchanger and the first sterilization temperature and the second sterilization temperature is determined.
According to some optional embodiments of the invention, a value range of the fourth setting time is 1-60 min.
According to some alternative embodiments of the present invention, before determining the relationship between the temperature of the indoor heat exchanger and the first and second sterilization temperatures, it is determined whether the air conditioner is operated in a heating state for the fourth set time,
if so, judging whether the temperature of the indoor heat exchanger is lower than the first sterilization temperature;
if not, judging whether the temperature of the indoor heat exchanger is greater than a third sterilization temperature, if so, 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 of the indoor heat exchanger and control the temperature rising speed of the indoor heat exchanger, and if not, continuously judging whether the air conditioner operates for a fourth set time in a heating state;
or, judging whether the temperature change rate of the indoor heat exchanger is greater than a set change rate, if so, 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 of the indoor heat exchanger and control the temperature rise speed of the indoor heat exchanger, and if not, continuously judging whether the air conditioner operates for a fourth set time in a heating state, wherein the third sterilization temperature is greater than the first sterilization temperature and less than the second sterilization temperature.
Optionally, the set change rate ranges from 0.5 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 temperature of the indoor heat exchanger is higher than a protection temperature is judged, if yes, the compressor of the air conditioner is stopped.
According to some optional embodiments of the invention, the protection temperature is in a range of 62-96 ℃.
According to some alternative embodiments of the present invention, the compressor is restarted after a set shutdown time for the compressor shutdown; 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.
Optionally, the value range of the set shutdown time is 1-30 min; and/or, the recovery temperature is no greater than 48 ℃.
In some optional 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 pasteurization mode.
Optionally, the maximum shutdown time is 1-30.
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 alternative embodiments of the invention, the fifth set time is greater than 10 min.
According to some embodiments of the present invention, during the entire process of the high-temperature sterilization mode, it is determined whether the temperature of the outdoor heat exchanger is greater than or equal to a preset temperature or the low pressure of the air conditioner is detected, and it is determined whether the low pressure is greater than or equal to a preset pressure, and if the temperature of the outdoor heat exchanger is greater than or equal to the preset temperature or the low pressure is greater than or equal to the preset pressure, at least one of reducing the rotation speed of the outdoor fan, increasing the frequency of the compressor, reducing the opening degree of the throttling device, and increasing the rotation speed of the indoor fan is performed.
In some embodiments of the present invention, the high temperature sterilization mode further includes performing an initialization process for an air conditioner when entering the high temperature sterilization mode, the initialization process including: initializing the rotating speed of an indoor fan according to the indoor temperature, wherein the initial rotating speed of the indoor fan is positively correlated with the indoor temperature or the initial rotating speed of the indoor fan is set to be a low-grade wind speed; initializing the rotating speed of an outdoor fan according to the outdoor temperature, wherein the initial rotating speed of the outdoor fan is inversely related to the outdoor temperature; initializing a compressor frequency according to the outdoor temperature, wherein the compressor initial frequency is inversely related to the outdoor temperature; initializing the opening degree of a throttling element according to the outdoor temperature, wherein the initial opening degree of the throttling element is positively correlated with the outdoor temperature; initializing the air guide angle of the air conditioner to a sterilization angle.
According to the air conditioner provided by the embodiment of the second aspect 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 refrigerant circulation, a rotatable air guide 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 provided by the embodiment of the first aspect of the invention.
According to the air conditioner provided by the embodiment of the second aspect of the invention, the air conditioner has a high-temperature sterilization mode, the air conditioner is controlled by the arranged control module to be carried out in the high-temperature sterilization mode according to the sterilization control method, so that after the air conditioner enters the high-temperature sterilization mode, the opening degree of the throttling device is controlled to be reduced or increased to enable the temperature of the indoor heat exchanger to be between the first sterilization temperature and the second sterilization temperature, further, bacteria and viruses on the indoor heat exchanger are effectively killed, the control method is simple, and the realization is convenient.
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 flow diagram of a sterilization control method of an air conditioner according to some embodiments of the present invention;
fig. 2 is a control flow diagram illustrating a sterilization control method of an air conditioner according to other embodiments of the present invention;
fig. 3 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. 4 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. 5 is a schematic view illustrating a control angle of an air 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. 6 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. 7 is a graph of an initial value of a frequency of a compressor of a sterilization control method of an air conditioner according to an embodiment of the present invention with respect to an outdoor temperature;
FIG. 8 is a graph of an initial value of the rotation speed of an outdoor fan and an outdoor temperature according to a sterilization control method of an air conditioner in accordance with an embodiment of the present invention;
fig. 9 is a graph of an opening initial value of a throttling device and an outdoor temperature according to a sterilization control method of an air conditioner in accordance with an embodiment of the present invention;
fig. 10 is a graph of an initial value of a rotation speed of an indoor fan and an indoor temperature according to a sterilization control method of an air conditioner according to some embodiments 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.
Referring to fig. 1 and 2, a sterilization control method of an air conditioner according to an embodiment of a first aspect 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;
after the air conditioner enters a high-temperature sterilization mode, controlling the air conditioner to perform heating operation, 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;
and judging the relation between the temperature of the indoor heat exchanger and the first sterilization temperature and the second sterilization temperature, wherein the first sterilization temperature is lower than the second sterilization temperature, the temperature of the indoor heat exchanger can be detected in real time in the whole high-temperature sterilization mode operation process, if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, the opening degree of the throttling device is controlled to be reduced, and if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, the opening degree of the throttling device is controlled to be increased. The temperature of the indoor heat exchanger can be adjusted through the adjusting means, so that the temperature of the indoor heat exchanger is not higher than the second sterilization temperature and not lower than the first sterilization temperature, and bacteria and viruses on the indoor heat exchanger can be effectively killed.
Particularly, after reducing throttling arrangement's aperture to a certain extent, because under the pasteurization mode, the high temperature refrigerant after the compressor compression can flow to indoor heat exchanger earlier, rethread throttling arrangement flows to outdoor heat exchanger, consequently reduces throttling arrangement's aperture, can reduce the flow that flows to outdoor heat exchanger refrigerant, thereby make indoor heat exchanger's temperature can obtain certain promotion, correspondingly, increase throttling arrangement's aperture, can increase the flow that flows to outdoor heat exchanger refrigerant, thereby make indoor heat exchanger's temperature can obtain certain reduction.
According to the sterilization control method of the air conditioner, after the air conditioner enters the high-temperature sterilization mode, the opening degree of the throttling device is controlled to be reduced or increased so that the temperature of the indoor heat exchanger is between the first sterilization temperature and the second sterilization temperature, bacteria and viruses on the indoor heat exchanger can be effectively killed, and the control method is simple and convenient to achieve.
In some embodiments of the present invention, after controlling the opening degree of the throttling device to decrease to the first set opening degree, if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, the angle of the air guide is adjusted to decrease the air outlet area of the air outlet, increase the frequency of the compressor, decrease the rotation speed of the indoor fan, increase the rotation speed of the outdoor fan, and turn on at least one of the electric auxiliary heat, so as to further increase the temperature of the indoor heat exchanger.
For the air guide member, the air guide member may be rotatably disposed at an air outlet of the air conditioner, and the air guide member may 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.
Optionally, the first sterilization temperature T1 may have a value 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 ℃.
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 through preferentially adjusting the throttling device, if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, other parameters are further adjusted, the problem of overshoot oscillation during multi-parameter synchronous adjustment is solved, and the air conditioner can stably and reliably work in a high-temperature sterilization mode.
Wherein, after the aperture of prior control throttling arrangement reduced, can select the angle to the air guide to adjust in order to reduce the air-out area of air outlet, can be the turned angle through adjusting the air guide to the regulation of air guide, so that the air guide rotates towards the direction of closing the air outlet, increase air guide shelters from the area of air outlet, 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 very fast 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.
Then at least one of the angle of the air guide piece, the frequency of the compressor, the rotating speed of the indoor fan, the rotating speed of the outdoor fan and the electric auxiliary heat is adjusted, so that the temperature of the indoor heat exchanger can be further increased, the temperature of the indoor heat exchanger is not lower than the first sterilization temperature, and the sterilization and disinfection effects are achieved.
When at least one of the angle of the air guide piece, the frequency of the compressor, the rotating speed of the indoor fan, the rotating speed of the outdoor fan and the electric auxiliary heat is adjusted, one or more of the angles 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. After the electric auxiliary heat is opened, the electric auxiliary heat can heat the air flow near the indoor heat exchanger, and the air flow flows through the indoor heat exchanger, so that the indoor heat exchanger can be heated, and the temperature of the indoor heat exchanger can be increased.
When one of the angle of the air guide member, the frequency of the compressor, the rotating speed of the indoor fan, the rotating speed of the outdoor fan and the electric auxiliary heat is adjusted, the angle of the air guide member can be only adjusted to reduce the air outlet area of the air outlet, the frequency of the compressor can be only increased, the rotating speed of the indoor fan can be only reduced, the rotating speed of the outdoor fan can be only increased, and the electric auxiliary heat can be only started.
When adjusting the angle of the air guide, the frequency of the compressor, the rotating speed of the indoor fan, the rotating speed of the outdoor fan and the electric auxiliary heat, multiple items can be adjusted simultaneously or sequentially. For example, the angle of the air guide member can be adjusted simultaneously to reduce the air outlet area of the air outlet, improve the frequency of the compressor and reduce the rotating speed of the indoor fan; for example, the angle of the air guide member can be sequentially adjusted to reduce the air outlet area of the air outlet, improve the frequency of the compressor and reduce the rotating speed of the indoor fan.
It is to be understood that the term(s) used herein refers to two or more.
According to some embodiments of the present invention, the opening degree of the throttling device is controlled to be gradually reduced according to the first setting rule, so that the temperature of the indoor heat exchanger can be stably and gradually increased, thereby facilitating the stability and reliability of the operation of the air conditioner. After the opening degree of the throttling device is adjusted to the first set opening degree according to the first set rule, the angle of the air guide piece is adjusted to reduce the air outlet area of the air outlet, improve the frequency of the compressor, reduce the rotating speed of the indoor fan, improve the rotating speed of the outdoor fan and start at least one of electric auxiliary heating so as to further improve the temperature of the indoor heat exchanger. Therefore, after the throttling device is gradually adjusted to the first set opening degree, other parameters are adjusted, the throttling device can be fully utilized to reduce the flow of the refrigerant flowing to the outdoor heat exchanger to a greater extent, the temperature of the indoor heat exchanger can be rapidly and obviously improved before other parameters are adjusted, and the temperature of the indoor heat exchanger can be rapidly and stably improved in a short time by combining subsequent adjustment of other parameters. Wherein the first set opening degree may be a minimum allowable opening degree of the throttle device.
In some alternative embodiments of the present invention, referring to fig. 1 and 2, if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, the high temperature sterilization mode is exited after a time is counted up to a first set time when the opening degree of the throttling means is adjusted to a first set opening degree. Therefore, when the opening degree of the throttling device is adjusted to a first set opening degree according to a first set rule, the temperature of the indoor heat exchanger is already improved to a certain degree, the air conditioner operates for a first set time by taking the first set opening degree as a starting timing point, and at least one of the angle of the air guide piece, the frequency of the compressor, the rotating speed of the indoor fan, the rotating speed of the outdoor fan and the electric auxiliary heat is adjusted during the first set time of the operation of the air conditioner, so that the temperature of the indoor heat exchanger is further improved, and the temperature of the indoor heat exchanger is improved to be not lower than the first sterilization temperature. 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.
Optionally, the value range of the first setting time is 30-90 min, for example, the value range of the first setting time may 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.
Optionally, the range of the first set opening degree is 0 to 250PPM, for example, the range of the first set opening degree may be 50 to 200 PPM. Therefore, the adverse effect on the operation of the throttling device caused by the excessively low first set opening degree can be avoided, and meanwhile, the phenomenon that the indoor heat exchanger is slowly heated to influence the sterilization effect due to the excessively high first set opening degree can also be avoided.
In some optional embodiments of the present invention, the opening degree of the throttling device is adjusted according to a first set rule so that the opening degree of the throttling device is gradually decreased, the first set rule 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 gradually adjusted according to a step size as an adjustment step, the second adjustment rule is gradually adjusted according to a product of a temperature difference of the heat exchanger and a gain coefficient as an adjustment step, the third adjustment rule is gradually adjusted according to a percentage of a current value as an adjustment step, and the fourth adjustment rule is gradually adjusted according to a percentage of a rated value as an adjustment step, wherein the temperature difference of the heat exchanger refers to an absolute value of a difference between a current temperature of the indoor heat exchanger and the first sterilization temperature. Therefore, in the process of adjusting the throttling device, the opening degree of the throttling device is gradually adjusted according to the set adjustment step size, so that the opening degree of the throttling device is gradually reduced, the temperature of the indoor heat exchanger is stably and gradually increased, 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 corresponding parameter adjusted in each step when a certain parameter is adjusted step by step. When the opening degree of the throttling device is adjusted, the adjustment step is specifically the amplitude of adjusting the opening degree of the throttling device in each step.
According to some embodiments of the present invention, referring to fig. 1 and 2, after controlling the opening degree of the throttling device to increase to the second set opening degree, if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, the angle of the air guide is adjusted to increase at least one of the air outlet area of the air outlet, decrease the frequency of the compressor, increase the rotation speed of the indoor fan, and decrease the rotation speed of the outdoor fan, so as to decrease the temperature of the indoor heat exchanger. Therefore, whether the temperature of the indoor heat exchanger is lower than the first sterilization temperature or not is judged, and whether the temperature of the indoor heat exchanger is higher than the second sterilization temperature or not is judged, so that the temperature of the indoor heat exchanger can be prevented from not reaching the effective sterilization temperature, meanwhile, the reduction of the reliability of the operation of the air conditioner caused by the overhigh temperature of the heat exchanger can be avoided, and the air conditioner can be ensured to operate reliably and stably in a high-temperature sterilization mode.
And when the temperature of the indoor heat exchanger is judged to be higher than the second sterilization temperature, the opening degree of the throttling device is controlled to be increased, so that the temperature of the indoor heat exchanger can be reduced to a certain extent, and if the temperature of the indoor heat exchanger is still higher than the second sterilization temperature, at least one of the angle of the air guide piece, the frequency of the compressor, the rotating speed of the indoor fan and the rotating speed of the outdoor fan is adjusted, so that the temperature of the indoor heat exchanger can be further reduced.
The temperature of the indoor heat exchanger can be reduced through the adjusting means, so that the temperature of the indoor heat exchanger is not higher than the second sterilization temperature T2 and not lower than the first sterilization temperature T1, and bacteria and viruses on the indoor heat exchanger can be effectively killed. And through preferentially adjusting the throttling device, if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, other parameters are further adjusted, the problem of overshoot oscillation during multi-parameter synchronous adjustment is solved, and the air conditioner can stably and reliably work in a 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. In particular, for the air conditioner having the no-wind-sensation mode, if the air guide is at the same air guide angle as the no-wind-sensation mode before the relationship between the temperature of the indoor heat exchanger and the first and second sterilization temperatures is determined, after the temperature of the indoor heat exchanger is determined to be greater than the second sterilization temperature, the angle of the air guide may be adjusted such that the angle of the air guide gradually exits the air guide angle in the no-wind-sensation mode.
When at least one of the angle of the air guide, the frequency of the compressor, the rotating speed of the indoor fan and the rotating speed of the outdoor fan is adjusted, one or more of the angles 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 and reducing the rotating speed of the outdoor fan, and therefore the temperature of the indoor heat exchanger can be reduced. When 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, the frequency of the compressor, the rotating speed of the indoor fan and the rotating speed of the outdoor fan is adjusted, the angle of the air guide can be adjusted only to increase the air outlet area of the air outlet, the frequency of the compressor can be reduced only, the rotating speed of the indoor fan can be increased only, and the rotating speed of the outdoor fan can be reduced only.
When adjusting multiple items of the angle of the air guide piece, the frequency of the compressor, the rotating speed of the indoor fan and the rotating speed of the outdoor fan, the multiple items can be adjusted simultaneously or sequentially. For example, the angle of the air guide member can be adjusted simultaneously to increase the air outlet area of the air outlet, reduce the frequency of the compressor and increase the rotating speed of the indoor fan; for example, the rotation speed of the indoor fan can be sequentially increased, the frequency of the compressor can be reduced, and the rotation speed of the indoor fan can be sequentially increased.
Optionally, the second sterilization temperature T2 is 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.
According to some alternative embodiments of the present invention, the opening degree of the throttling device is controlled to be increased according to the second setting rule, so that the temperature of the indoor heat exchanger can be steadily and gradually reduced, thereby being beneficial to the stability and reliability of the operation of the air conditioner. After the opening degree of the throttling device is adjusted to a second set opening degree according to a second set rule, the angle of the air guide piece is adjusted to increase at least one of the air outlet area of the air outlet, reduce the frequency of the compressor, increase the rotating speed of the indoor fan and reduce the rotating speed of the outdoor fan, so that the temperature of the indoor heat exchanger is reduced. Therefore, the opening of the throttling device is gradually adjusted to the second set opening and then other parameters are adjusted, the flow of the refrigerant flowing to the outdoor heat exchanger can be increased to a greater extent by fully utilizing the throttling device, so that the temperature of the indoor heat exchanger can be rapidly and obviously reduced before other parameters are adjusted, and the temperature of the indoor heat exchanger can be rapidly and stably reduced in a short time by combining with subsequent adjustment of other parameters. Wherein the second set rotational speed may be a maximum allowable opening degree of the throttle device.
In some alternative embodiments of the present invention, referring to fig. 1 and 2, if the temperature of the indoor heat exchanger is higher than the first sterilization temperature, the high temperature sterilization mode is exited after a time is counted up to a second set time when the opening degree of the throttling means is adjusted to a second set opening degree. Therefore, when the opening degree of the throttling device is adjusted to a second set opening degree according to a second set rule, the temperature of the indoor heat exchanger is already reduced to a certain degree, the air conditioner operates for a second set time by taking the second set time as a starting timing point, and at least one of the angle of the air guide, the frequency of the compressor, the rotating speed of the indoor fan and the rotating speed of the outdoor fan is adjusted during the second set time of the operation of the air conditioner, so that the temperature of the indoor heat exchanger is further reduced, and the temperature of the indoor heat exchanger is reduced to be not higher than a second sterilization temperature and not lower than a first sterilization temperature. 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 setting time is 10-60 min, for example, the value range of the second setting time may 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.
Optionally, the value range of the second set opening degree is 350 to 650PPM, for example, the value range of the second set rotation speed may be 400 to 600 rpm. Therefore, the situation that the temperature of the indoor heat exchanger is lowered and raised slowly due to the excessively low setting of the second set opening degree can be avoided, the operation of the indoor heat exchanger is influenced, and meanwhile, the adverse effect on the operation of the throttling device due to the excessively high setting of the second set opening degree can also be avoided.
In some optional embodiments of the present invention, the throttling device is adjusted according to a second setting rule to gradually increase the opening degree, the second setting rule 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 size, the second adjustment rule is step-by-step adjustment according to a product of a temperature difference of the heat exchanger and a gain coefficient as an adjustment step size, the third adjustment rule is step-by-step adjustment according to a percentage of a current value as an adjustment step size, and the fourth adjustment rule is step-by-step adjustment according to a percentage of a rated value as an adjustment step size, wherein the temperature difference of the heat exchanger is an absolute value of a difference between a current temperature of the indoor heat exchanger and. Therefore, in the process of adjusting the throttling device, the opening degree of the throttling device is gradually adjusted according to the set adjustment step size, so that the opening degree of the throttling device is gradually increased, the flow of the refrigerant flowing to the outdoor heat exchanger is gradually increased, the temperature of the indoor heat exchanger is stably and gradually reduced, and the stability and the reliability of the operation of the air conditioner are facilitated.
Referring to fig. 1 and 2, in some alternative embodiments of the present invention, 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 rotational speed of the indoor fan, the frequency of the compressor, the opening degree of the throttling device, the rotational 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 timer is started until the air conditioner operates for a 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 range of the third setting time is 10-60 min, for example, the value range of 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.
According to some embodiments of the present invention, the regulation rule of any one of the rotation speed of the indoor fan, the angle of the air guide, the frequency of the compressor, the opening degree of the throttling device, and the rotation speed of the outdoor fan is one of a first regulation rule, a second regulation rule, a third regulation rule, and a fourth regulation rule, wherein the first regulation rule is a stepwise regulation according to a step size as a regulation step, the second regulation rule is a stepwise regulation according to a product of a temperature difference value of the heat exchanger and a gain coefficient as a regulation step, the third regulation rule is a stepwise regulation according to a percentage of a current value as a regulation step, the fourth regulation rule is a stepwise regulation according to a percentage of a rated value as a regulation step, and when the system pressure is increased (i.e., for the purpose of increasing the temperature of the indoor heat exchanger), the temperature difference value of the heat exchanger is an absolute value of a difference between the current temperature of the indoor, when the system pressure is reduced (i.e. the purpose of reducing the temperature of the indoor heat exchanger is achieved), the heat exchanger temperature difference value refers to the absolute value of the difference value between the current temperature of the indoor heat exchanger and the second preset sterilization temperature. Therefore, in the process of adjusting any one parameter of the rotating speed of the indoor fan, the angle of the air guide piece, 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 adjusting step size, the temperature of the indoor heat exchanger is guaranteed to be between the first preset sterilization temperature and the second preset sterilization temperature, and therefore 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 any one of the adjustment rule of the rotation speed of the indoor fan, the angle of the air guide, the frequency of the compressor, the opening degree of the throttle device, and the rotation 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％]I.e. the adjusted rotating speed of the indoor fanRmax is the maximum rated speed of the indoor fan, Rmin is the minimum rated speed of the indoor fan, 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 rotating speed of the indoor fan after adjustment, Rmax is the indoor fanThe maximum rated rotating speed of the indoor fan, Rmin is the minimum rated rotating speed of the indoor fan, EuInner 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 compressionMaximum allowable frequency of the machine, Fmin being 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% of increasing frequencyThe nominal amplitude factor of (a).
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 opening after adjustment, Pmax is the maximum allowable opening of the throttling device, Pmin is the maximum allowable opening of the throttling deviceSmall allowable opening degree, Ed% is the rated amplitude coefficient of reduced 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;
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 reduced, 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 is reduced to be | Tx-T2 |. multidot.Kd every stepOuter 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 by step is carried out according to the product of the temperature difference value of the heat exchanger and the gain coefficient, specifically, the angle of the air guide member is regulated, for example, the air guide member swings and rotates up and down, the included angle between the air guide member before the air guide member is regulated and the vertical upward direction is β, and the angle amplitude of the air guide member in each step is | -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 air guide member step by step according to the percentage of the current value, specifically to adjust the angle of the air guide member, for example, the air guide member swings and rotates up and down, the included angle between the air guide member before the air guide member is adjusted and the vertical upward direction is β, and the angle amplitude of the rotation of the air guide member 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 regulation rule is that the wind guide piece is regulated step by step according to the percentage of the rated value, specifically, the angle of the wind guide piece is regulated, for example, the wind guide piece swings and rotates up and down, the included angle between the wind guide piece before the wind guide piece is regulated and the vertical upward direction is β, and the angle amplitude of the wind guide piece rotating in each step is (β max- β min) EdGuide tube% of the total weight of the air guide member, wherein β max is the maximum value of the included angle between the air guide member and the vertical upward direction (refer to fig. 6 and 7), β min is the minimum value of the included angle between the air guide member and the vertical upward direction (refer to fig. 6 and 7), EdGuide tube% is the reduction angleRated amplitude coefficient of (E), 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 angle of the air guide member is regulated, for example, the air guide member swings and rotates up and down, the included angle between the air guide member before the air guide member is regulated and the vertical upward direction is β, and the angle amplitude of the air guide member in each step of rotation 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 air guide member step by step according to the percentage of the current value, specifically to adjust the angle of the air guide member, for example, the air guide member swings and rotates up and down, the included angle between the air guide member before the air guide member is adjusted and the vertical upward direction is β, and the angle amplitude of the rotation of the air guide member 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 regulation rule is that the adjustment steps are gradually regulated according to the percentage of the rated value, specifically, the angle of the air guide member is regulated, for example, the air guide member swings and rotates up and down, the included angle between the air guide member before the air guide member is regulated and the vertical upward direction is β, and the angle amplitude of the rotation of the air guide member 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 the maximum value of the included angle between the wind guide piece and the vertical upward direction (seeFig. 6 and 7), β min is the minimum value of the included angle between the wind guide and the vertical upward direction (refer to fig. 6 and 7), and EuGuide tube% is the nominal amplitude coefficient for the increasing angle.
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, the minimum value Rmin of the rated rotating speed of the indoor fan ranges from 400 RPM to 800RPM, the minimum rotating speed of the indoor fan is less than or equal to Rmin, and the maximum rotating speed of the indoor fan is greater than or equal to Rmax.
Therefore, the frequency of the compressor, the rotating speed of the outdoor fan, the opening degree of the throttling device and the rated rotating speed of the indoor fan are 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.
According to some embodiments of the present invention, the adjustment of any one of the angle of the air guide, the rotation speed of the indoor fan, the frequency of the compressor, the opening degree of the throttle device, and the rotation speed of the outdoor fan is adjusted step by step according to an adjustment step, for example, the adjustment step may be adjusted by the adjustment step described above. 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 of the throttling device and the rotating speed of the outdoor fan, the adjustment step of increasing the system pressure is not larger 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.
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, regulateThe angle of the wind guide is regulated according to a first regulation rule of β d ≤ β u, such as β u ≥ 1.5 β d, and regulated according to a second regulation rule of 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, adjusting according to a first adjusting rule: 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％。
According to some embodiments of the present invention, referring to fig. 1 and 2, after the air conditioner is operated in the heating state for a fourth set time, the relationship between the temperature Tx of the indoor heat exchanger and the first and second sterilization temperatures T1 and T2 is determined. Therefore, before the temperature Tx of the indoor heat exchanger is judged to be lower than the first sterilization temperature T1, the air conditioner can enter a stable operation state and the temperature of the indoor heat exchanger can enter the stable state by operating the air conditioner for a period of time in a heating state, and therefore the judgment result is more reliable.
When it is necessary to simultaneously determine whether the temperature Tx of the indoor heat exchanger is higher than the second sterilization temperature T2, after the air conditioner is operated in the heating state for a fourth set time, it is determined whether the temperature Tx of the indoor heat exchanger is lower than the first sterilization temperature T1 and simultaneously whether the temperature Tx of the indoor heat exchanger is higher than the second sterilization temperature T2.
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 for 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 temperature Tx of the indoor heat exchanger is lower than the first sterilization temperature T1, or whether the temperature Tx of the indoor heat exchanger is lower than the first sterilization temperature T1 while determining whether the temperature Tx of the indoor heat exchanger is higher than the second sterilization temperature T2. 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 continues to accumulate to the fourth set time after entering the high temperature sterilization mode, it is determined whether the temperature Tx of the indoor heat exchanger is less than the first sterilization temperature T1, or whether the temperature Tx of the indoor heat exchanger is less than the first sterilization temperature T1 while it is determined whether the temperature Tx of the indoor heat exchanger is greater than the second sterilization temperature T2.
According to some optional embodiments of the invention, the fourth setting time is in a range of 1-60 min, for example, 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.
According to some optional embodiments of the present invention, referring to fig. 1 and 2, 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 the heating operation, and the value range of the fourth setting time is 1 to 30min, for example, the value range of the fourth setting time may be 1 to 10min, more specifically 1 to 5 min; if the current operation state of the air conditioner is not in the heating state, the air conditioner is controlled to be switched to the heating state for operation, and the value range of the fourth set time is 1-60 min, specifically, the value range of the first preset time is 1-15min, for example, the value range of the fourth set time at this time may be 5-8 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.
According to some alternative embodiments of the present invention, referring to fig. 1 and 2, before determining the relationship between the temperature of the indoor heat exchanger and the first and second sterilization temperatures (e.g., whether the temperature of the indoor heat exchanger is lower than the first sterilization temperature), it is determined whether the air conditioner is operated in a heating state for a fourth set time,
if the air conditioner runs for the fourth set time in the heating state, judging whether the temperature Tx of the indoor heat exchanger is lower than the first sterilization temperature T1;
if the air conditioner does not run for a fourth set time in the heating state, judging whether the temperature Tx of the indoor heat exchanger is greater than a third sterilization temperature T3, wherein the third sterilization temperature T3 is greater than the first sterilization temperature T1 and less than the second sterilization temperature T2, if the temperature Tx of the indoor heat exchanger is greater than the third sterilization temperature T3, 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 of the indoor heat exchanger, controlling the temperature rising speed of the indoor heat exchanger, and if the temperature Tx of the indoor heat exchanger is not greater than the third sterilization temperature T3, continuing to judge whether the air conditioner runs for the fourth set time in the heating state;
or, judging whether the temperature change rate of the indoor heat exchanger is greater than a set change rate K, if so, 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, controlling the temperature rising speed of the indoor heat exchanger, and if not, 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 degree 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, and the temperature rising speed of the indoor heat exchanger can be controlled.
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.
When it is necessary to simultaneously determine whether the temperature Tx of the indoor heat exchanger is higher than the second sterilization temperature T2, it is determined whether the air conditioner is operated for a fourth set time in the heating state before determining whether the temperature Tx of the indoor heat exchanger is lower than the first sterilization temperature T1 and simultaneously determining whether the temperature Tx of the indoor heat exchanger is higher than the second sterilization temperature T2. And, at this moment, the third sterilization temperature T3 can be set between the first sterilization temperature T1 and the second sterilization temperature T2, and the third sterilization temperature T3 is greater than the first sterilization temperature T1 and less than the second sterilization temperature T2, so that the operation efficiency and sterilization efficiency of the air conditioner in the high-temperature sterilization mode can be improved, and the low-frequency liquid return for avoiding high-temperature high-pressure rapid jump stop and compression can be better buffered and controlled.
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.
According to some embodiments of the present invention, referring to fig. 3, during the entire 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 temperature of the indoor heat exchanger is greater than the protection temperature is judged in real time, 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 may be 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 ℃.
According to some alternative embodiments of the present invention, referring to fig. 3, 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, if so, restarting the compressor, and if not, continuously judging whether the temperature of the indoor heat exchanger is lower than the recovery temperature, wherein the recovery temperature is lower than the first sterilization 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 set downtime is in a range of 1 to 30min, for example, the set downtime is in a range of 1 to 15min or 16 to 30min, and more specifically, in a range of 3 to 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 not more 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 can be reduced; and, the work efficiency and the sterilization efficiency of the air conditioner in the high-temperature sterilization mode can be improved.
In some alternative embodiments of the present invention, referring to fig. 3, 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; if the shutdown frequency of the compressor is not more than the maximum shutdown frequency, 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 condition or not, restarting the compressor when the compressor meets the restart condition, and recovering the high-temperature sterilization mode. 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.
Optionally, the maximum shutdown time is in a range of 1-30, for example, 1-20, specifically 3-20, and preferably 3-10. 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.
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 value of the rotation speed of the indoor fan (R0), the initial value of the frequency of the compressor (F0), the initial value of the opening degree of the throttling device (P0), and the initial value of the rotation speed of the outdoor fan (W0) 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. 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% -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. 6-9.
Fig. 6 shows the relationship between the fourth set time T1 and the outdoor temperature T4 and the relationship between the fifth set time T5 and the outdoor temperature T4.
The first outdoor temperature interval is-10 to 0 ℃ (see interval F in fig. 6 to 9), the second outdoor temperature interval is 0 to 10 ℃ (see interval E in fig. 6 to 9), the third outdoor temperature interval is 10 to 20 ℃ (see interval D in fig. 6 to 9), the fourth outdoor temperature interval is 20 to 30 ℃ (see interval C in fig. 6 to 9), the fifth outdoor temperature interval is 30 to 40 ℃ (see interval B in fig. 6 to 9), and the sixth outdoor temperature interval is greater than 40 ℃ (see interval a in fig. 6 to 9). The maximum time values of the fourth set time t1 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 15min, 12min, 8min, 5min and 3min, the maximum time values of the fifth set time t5 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 65min, 55min, 45min, 40min and 35min, and the maximum frequency FmaxT4 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 100Hz, 90Hz, 80Hz, 60Hz and 30Hz respectively. The maximum rotating speeds WmaxT4 of the rotating speeds 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 degrees 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 are respectively 250PPM, 300PPM, 350PPM, 400PPM and 450 PPM.
According to some embodiments of the invention, referring to fig. 1 and fig. 2, when the air conditioner enters the high-temperature sterilization mode, the air conditioner starts to count time until the air conditioner runs for a fifth setting time in an accumulated mode, and then the air conditioner exits the high-temperature sterilization mode, so that the air conditioner can automatically exit after running for the fifth setting time in the high-temperature sterilization mode, thereby not only ensuring the sterilization and disinfection effect, but also reducing or avoiding the problems of damage to a compressor, the service life of an electric control component and the deformation of a plastic part caused by long-term running under severe working 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 fifth setting time is longer than 10min, for example, 10-90 min or 35-90 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 30-130 min, for example 100-130 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.
In some embodiments, referring to fig. 1 and 2, 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.
According to some embodiments of the present invention, referring to fig. 4 and 5, in the whole process of the air conditioner in the high-temperature sterilization mode, the angle of the air guide is always within the sterilization angle interval, and when the air guide is within the sterilization angle interval, the included angle β between the air guide and the vertical upward direction ranges from 0 ° to 120 °.
For example, when the air conditioner has a blow-through prevention function, the sterilization angle may be the same as the angle in the blow-through prevention mode, and when the air conditioner has a non-wind-sensation function, the sterilization angle may be the same as the angle in the non-wind-sensation mode, wherein when a plurality of wind dispersion holes are formed in the wind guide, the wind guide may close the wind outlet, and at this time, an included angle β between the wind guide and the vertically upward direction is 0 °.
For another example, when the air conditioner does not have the non-wind-sensing function, and the air guide is of a solid structure (that is, when the air guide does not have a plurality of wind dispersion holes), the air guide opens at least a part of the wind outlet, and at this time, an included angle β between the air guide and the vertical upward direction is greater than 0 °, so that the air guide extends obliquely upward in the direction from back to front or is inclined downward by a small angle in the direction from back to front.
Therefore, 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 the sterilization angle interval. For example, the air conditioner is a split wall-mounted air conditioner, and the value range of beta is 5-120 degrees.
In some optional embodiments of the present invention, when the air conditioner is a split floor type air conditioner, the value of β is in a range of 0 to 75 °, for example, 5 to 75 °, so that the air 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. 4 and 5, when the air guide is located at the upper limit position of the sterilization angle interval (refer to position a in fig. 4 and 5), an included angle β between the air guide and the vertical upward direction is a 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. 4 and 5), an angle β between the air guide and the vertical upward direction is a maximum value β max.
In some embodiments of the present invention, during the entire process of the high-temperature sterilization mode, it is determined whether the temperature of the outdoor heat exchanger is greater than or equal to a preset temperature or the low pressure of the air conditioner is detected, and it is determined whether the low pressure is greater than or equal to a preset pressure, and if the temperature of the outdoor heat exchanger is greater than or equal to the preset temperature or the low pressure is greater than or equal to the preset pressure, at least one of reducing the rotation speed of the outdoor fan, increasing the frequency of the compressor, reducing the opening degree of the throttling device, and increasing the rotation speed of.
It can be understood that the low pressure of the air conditioner and the temperature of the outdoor heat exchanger can be reduced by reducing the rotating speed of the outdoor fan, improving the frequency of the compressor, reducing the opening degree of the throttling device and increasing the rotating speed of the indoor fan, so that the damage of the outdoor heat exchanger after the temperature of the outdoor heat exchanger is higher than the critical temperature can be avoided, the damage of the air conditioner after the low pressure of the air conditioner exceeds the critical pressure can also be avoided, and the working reliability and the service life of the air conditioner can be improved.
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. 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 reduced; or simply increase the compressor frequency; or only reducing the throttle opening; or increasing the indoor fan speed. 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 rotating speed of the outdoor 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 rotating speed of the outdoor fan can be reduced, the frequency of the compressor can be increased, and the opening degree of the throttling device can be reduced sequentially.
It should be noted that, in the whole process of the high-temperature sterilization mode, if the temperature of the outdoor heat exchanger is greater than or equal to the preset temperature or the low pressure of the outdoor heat exchanger is greater than or equal to the preset pressure, the priority of the adjustment of at least one of reducing the rotation speed of the outdoor fan, increasing the frequency of the compressor, reducing the opening degree of the throttling device, and increasing the rotation speed of the indoor fan is the highest, so that the stable operation of the air conditioner can be ensured. For example, when the temperature of the indoor heat exchanger is higher than the second sterilization temperature, the opening of the throttling device needs to be controlled to be increased, and the frequency of the compressor may need to be reduced, and at this time, if the temperature of the outdoor heat exchanger is greater than or equal to the preset temperature or the low pressure of the outdoor heat exchanger is greater than or equal to the preset pressure, the opening of the throttling device needs to be reduced or the frequency of the compressor needs to be increased, and in this case, the relevant adjustment according to the condition that the temperature of the outdoor heat exchanger is greater than or equal to the preset temperature or the low pressure of the outdoor heat exchanger is greater than or equal to the preset pressure is preferentially performed, so as to avoid the adjustment conflict of some.
In some embodiments of the present invention, the air conditioner is initialized when entering the high-temperature sterilization mode. And initializing the air conditioner according to the current indoor environment temperature so as to meet the requirement of rapidly entering a high-temperature sterilization mode in 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 rotation speed may be initialized according to the indoor temperature T0, for example, the indoor fan initial rotation speed R0 is positively correlated with 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. 10 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 entering the high-temperature sterilization mode, the indoor fan may be adjusted to a lower rotation speed range (for example, a predetermined percentage range of the maximum rotation speed (for example, the rotation speed range is in a range of 5% -80% of the maximum rotation speed)), and the indoor fan rotation speed may be adjusted according to the indoor temperature T0 in this range. Through the initial adjustment of the indoor fan, the indoor heat exchanger can be promoted to quickly reach the sterilization temperature, and the high-temperature sterilization time is effectively shortened.
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. 8 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. 7 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. 9 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 guiding angle initialization as an example, the wind guiding 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 second aspect 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 a refrigerant cycle, the air outlet is provided with a rotatable air guide, 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 provided by the embodiment of the first aspect of the invention.
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.
The air conditioner provided by the embodiment of the invention has a high-temperature sterilization mode, and the air conditioner is controlled by the arranged control module to be carried out in the high-temperature sterilization mode according to the sterilization control method, so that after the air conditioner enters the high-temperature sterilization mode, the temperature of the indoor heat exchanger is between the first sterilization temperature and the second sterilization temperature by controlling the opening degree of the throttling device to be reduced or increased, and further bacterial and virus on the indoor heat exchanger can be effectively killed, and the control method is simple and is convenient to implement.
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 (26)

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;
judging the relation between the temperature of the indoor heat exchanger and a first sterilization temperature and a second sterilization temperature, wherein the first sterilization temperature is lower than the second sterilization temperature;
and if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, controlling the opening degree of the throttling device to be reduced, and if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, controlling the opening degree of the throttling device to be increased.
2. The sterilization control method of an air conditioner according to claim 1,
after the opening degree of the throttling device is controlled to be reduced to a first set opening degree, if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, adjusting the angle of the air guide piece to reduce the air outlet area of an air outlet, improve the frequency of a compressor, reduce the rotating speed of an indoor fan, improve the rotating speed of an outdoor fan and start at least one of electric auxiliary heating to improve the temperature of the indoor heat exchanger;
after the opening degree of the throttling device is controlled to be increased to a second set opening degree, if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, the angle of the air guide piece is adjusted to increase at least one of the air outlet area of the air outlet, the frequency of the compressor, the rotating speed of the indoor fan and the rotating speed of the outdoor fan, so that the temperature of the indoor heat exchanger is reduced.
3. The sterilization control method of an air conditioner according to claim 2, wherein if the temperature of the indoor heat exchanger is lower than the first sterilization temperature, the high-temperature sterilization mode is exited after a time is counted up to a first set time when the opening degree of the throttling means is adjusted to the first set opening degree;
and if the temperature of the indoor heat exchanger is higher than the second sterilization temperature, starting to time when the opening degree of the throttling device is adjusted to the second set opening degree until the air conditioner runs for a second set time, and then exiting the high-temperature sterilization mode.
4. The sterilization control method of an air conditioner according to claim 2, wherein the first set time is 30 to 90min, the first set opening is 0 to 250PPM, the second set time is 10 to 60min, and the second set opening is 350 to 650 PPM.
5. The sterilization control method of an air conditioner according to claim 1, wherein the first sterilization temperature has a value range of 56-94 ℃.
6. The sterilization control method of an air conditioner according to claim 1, wherein the second sterilization temperature has a value range of 56-96 ℃.
7. The sterilization control method of an air conditioner according to claim 6, wherein the difference between the second sterilization temperature and the first sterilization temperature is not less than 0.5 ℃.
8. The sterilization control method of an air conditioner according to claim 6, wherein the difference between the second sterilization temperature and the first sterilization temperature is in a range of 1-3 ℃.
9. The sterilization control method of an air conditioner according to claim 1, wherein if it is determined that the temperature of the indoor heat exchanger is 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.
10. The sterilization control method of an air conditioner according to claim 9, wherein the third setting time is 10-60 min.
11. The sterilization control method of an air conditioner according to claim 2, wherein an adjustment rule of any one of an angle of the air guide, an opening degree of the throttling means, a frequency of the compressor, a rotation speed of the indoor fan, and a rotation 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 heat exchanger temperature difference value 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 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 the 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.
12. The sterilization control method of an air conditioner according to claim 1, wherein the relationship between the temperature of the indoor heat exchanger and the first sterilization temperature and the second sterilization temperature is determined after the air conditioner is operated in a heating state for a fourth set time.
13. The sterilization control method of an air conditioner according to claim 12, wherein the fourth setting time is in a range of 1-60 min.
14. The sterilization control method of an air conditioner according to claim 12, wherein it is determined whether the air conditioner is operated in a heating state for the fourth set time before determining the relationship between the temperature of the indoor heat exchanger and the first and second sterilization temperatures,
if so, judging whether the temperature of the indoor heat exchanger is lower than the first sterilization temperature;
if not, judging whether the temperature of the indoor heat exchanger is greater than a third sterilization temperature, if so, 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 of the indoor heat exchanger and control the temperature rising speed of the indoor heat exchanger, and if not, continuously judging whether the air conditioner operates for a fourth set time in a heating state;
or, judging whether the temperature change rate of the indoor heat exchanger is greater than a set change rate, if so, 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 of the indoor heat exchanger and control the temperature rise speed of the indoor heat exchanger, and if not, continuously judging whether the air conditioner operates for a fourth set time in a heating state, wherein the third sterilization temperature is greater than the first sterilization temperature and less than the second sterilization temperature.
15. The sterilization control method of an air conditioner according to claim 14, wherein the set change rate has a value range of 0.5 to 5 ℃/min.
16. 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, whether the temperature of the indoor heat exchanger is higher than a protection temperature or not is judged in real time, and if yes, a compressor of the air conditioner is stopped.
17. The sterilization control method of an air conditioner according to claim 16, wherein the protection temperature has a value range of 62-96 ℃.
18. The sterilization control method of an air conditioner according to claim 16, wherein the compressor is restarted after a set shutdown time for the compressor is stopped; 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.
19. The sterilization control method of an air conditioner according to claim 18, wherein the set shutdown time is in a range of 1-30 min; and/or, the recovery temperature is no greater than 48 ℃.
20. The sterilization control method of an air conditioner according to claim 18, 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.
21. The sterilization control method of an air conditioner according to claim 20, wherein the maximum number of times of shutdown is in a range of 1 to 30.
22. 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.
23. The sterilization control method of an air conditioner according to claim 22, wherein the value range of the fifth setting time is more than 10 min.
24. The sterilization control method of an air conditioner according to claim 1, wherein in the entire process of the high temperature sterilization mode, it is judged whether the temperature of the outdoor heat exchanger is equal to or higher than a preset temperature or the low pressure of the air conditioner is detected, and it is judged whether the low pressure is equal to or higher than a preset pressure, and if the temperature of the outdoor heat exchanger is equal to or higher than the preset temperature or the low pressure is equal to or higher than the preset pressure, at least one of reducing the rotation speed of the outdoor fan, increasing the frequency of the compressor, reducing the opening degree of the throttling device, and increasing the rotation speed of the indoor fan is performed.
25. The sterilization control method of an air conditioner according to any one of claims 1 to 24, 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, wherein the initial rotating speed of the indoor fan is positively correlated with the indoor temperature or the initial rotating speed of the indoor fan is set to be a low-grade wind speed;
initializing the rotating speed of an outdoor fan according to the outdoor temperature, wherein the initial rotating speed of the outdoor fan is inversely related to the outdoor temperature;
initializing a compressor frequency according to the outdoor temperature, wherein the compressor initial frequency is inversely related to the outdoor temperature;
initializing the opening degree of a throttling element according to the outdoor temperature, wherein the initial opening degree of the throttling element is positively correlated with the outdoor temperature;
initializing the air guide angle of the air conditioner to a sterilization angle.
26. 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 1-25.
CN202010495454.6A 2020-03-13 2020-06-03 Air conditioner and sterilization control method thereof Active CN111692726B (en)

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