CN114459117A - Control method and device of air conditioner and air conditioner - Google Patents

Control method and device of air conditioner and air conditioner Download PDF

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Publication number
CN114459117A
CN114459117A CN202210079930.5A CN202210079930A CN114459117A CN 114459117 A CN114459117 A CN 114459117A CN 202210079930 A CN202210079930 A CN 202210079930A CN 114459117 A CN114459117 A CN 114459117A
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China
Prior art keywords
temperature value
air conditioner
sterilization
preset
indoor unit
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Pending
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CN202210079930.5A
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Chinese (zh)
Inventor
李燕华
洪梓壁
何晓东
邓妃恒
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Panasonic Appliances Air Conditioning Guangzhou Co Ltd
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Panasonic Appliances Air Conditioning Guangzhou Co Ltd
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Priority to CN202210079930.5A priority Critical patent/CN114459117A/en
Publication of CN114459117A publication Critical patent/CN114459117A/en
Pending legal-status Critical Current

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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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F24F11/62—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
    • F24F11/79—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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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

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

Abstract

The invention relates to an air conditioner control method and device and an air conditioner. The control method of the air conditioner executes the following steps after the air conditioner is started: acquiring an operation mode of an air conditioner; if the operation mode is a heating sterilization mode, the control method of the air conditioner comprises the following steps: controlling the air conditioner to operate according to a first preset sterilization strategy, so that hot air flows to a lower cavity of the indoor unit for sterilization and disinfection; and controlling the air conditioner to operate according to a second preset sterilization strategy, so that the hot air flow flows to the upper cavity of the indoor unit for sterilization and disinfection. The control method of the air conditioner can comprehensively and effectively sterilize the inner cavity of the indoor unit of the air conditioner under the condition of not increasing the equipment cost, is more convenient to use, and improves the user experience.

Description

Control method and device of air conditioner and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and device of an air conditioner and the air conditioner.
Background
Air conditioners generally have basic functions of cooling, heating, dehumidifying and the like, and in addition, some air conditioners also have the functions of sterilization and disinfection. The sterilization function of a general air conditioner can only be performed in a heating mode, namely, hot air is generated through a heat exchanger, and the rotating speed of a fan of an indoor unit and the angle of an air guide blade are controlled, so that the hot air flows out of an air outlet of the fan of the indoor unit and then flows to a lower cavity where the air outlet of the indoor unit is located, and the sterilization and disinfection of the cavity of the indoor unit are realized. However, in the original heat sterilization method, based on the consideration of the safety factor of the refrigeration system of the air conditioner, the coil temperature of the heat exchanger needs to be set to a certain rated value in the heat sterilization mode, that is, the coil temperature of the heat exchanger is controlled within the rated value; and because the fan of the indoor unit continuously operates to guide hot air flow to the air outlet of the indoor unit, the hot air flow cannot flow to the upper cavity where the air inlet of the indoor unit is located, so that the temperature of the upper cavity of the indoor unit cannot reach the temperature required by sterilization, and the inside of the air conditioner cannot be comprehensively and effectively sterilized.
Disclosure of Invention
In order to solve the problems in the related art, embodiments of the present invention provide a control method and apparatus for an air conditioner, and the control method for an air conditioner can comprehensively and effectively sterilize an internal cavity of an indoor unit of an air conditioner without increasing equipment cost, is more convenient to use, and improves user experience.
The invention is realized by the following technical scheme.
According to a first aspect of the embodiments of the present invention, there is provided a control method for an air conditioner, which is applied to the air conditioner and performs the following steps after the air conditioner is started:
acquiring an operation mode of an air conditioner;
if the operation mode is a heating sterilization mode, the control method of the air conditioner comprises the following steps:
controlling the air conditioner to operate according to a first preset sterilization strategy, so that hot air flows to a lower cavity of the indoor unit for sterilization and disinfection;
and controlling the air conditioner to operate according to a second preset sterilization strategy, so that the hot air flow flows to the upper cavity of the indoor unit for sterilization and disinfection.
According to a second aspect of the embodiments of the present invention, there is provided a control apparatus of an air conditioner, including:
the acquisition module is used for acquiring the operation mode of the air conditioner;
the operation module is used for controlling the heating sterilization of the air conditioner if the operation mode is the heating sterilization mode, and comprises the following steps: controlling the air conditioner to operate according to a first preset sterilization strategy, so that hot air flows to a lower cavity of the indoor unit for sterilization and disinfection; and controlling the air conditioner to operate according to a second preset sterilization strategy, so that the hot air flow flows to the upper cavity of the indoor unit for sterilization and disinfection.
According to a third aspect of embodiments of the present invention, there is provided an air conditioner including: the air conditioner comprises a memory, a processor and a computer program stored in the memory and capable of being executed by the processor, wherein the processor executes the computer program to realize the control method of the air conditioner according to any one embodiment.
By applying the technical scheme of the invention, the first preset sterilization strategy and the second preset sterilization strategy are set, the air conditioner is controlled to operate according to the first preset sterilization strategy, so that hot air flows to the lower cavity of the indoor unit for sterilization and disinfection, and the air conditioner is controlled to operate according to the second preset sterilization strategy, so that the hot air flows to the upper cavity of the indoor unit for sterilization and disinfection, therefore, the internal cavity of the indoor unit of the air conditioner can be comprehensively and effectively sterilized and disinfected on the basis of the structure of original equipment, the equipment cost is not increased, the use is more convenient, and the user experience is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a step S2 of a control method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating step S3 of the control method according to the embodiment of the present invention;
fig. 4 is a flowchart illustrating step S31 of the control method according to the embodiment of the present invention;
FIG. 5 is a schematic flow diagram of the hot air flow in the first sterilization stage according to the embodiment of the present invention;
fig. 6 is a flowchart illustrating step S32 of the control method according to the embodiment of the present invention;
FIG. 7 is a schematic flow diagram of the hot air flow in the second sterilization stage according to the embodiment of the present invention;
fig. 8 is a schematic structural view illustrating a control apparatus of an air conditioner according to an embodiment of the present invention;
fig. 9 is a schematic structural view illustrating an operation module of an air conditioner according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if/if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the original heating sterilization method, based on the consideration of the safety factor of a refrigeration system of an air conditioner, under a heating sterilization mode, the temperature of a coil pipe of a heat exchanger needs to be set to a certain rated value, namely, the temperature of the coil pipe of the heat exchanger is controlled within the rated value, and because an indoor unit fan continuously operates to guide hot air to an air outlet of an indoor unit, the hot air cannot flow to an upper cavity where an air inlet of the indoor unit is located, the temperature of the upper cavity of the indoor unit cannot reach the temperature required by sterilization, the inside of the air conditioner cannot be comprehensively and effectively sterilized, and user experience is poor.
Aiming at the technical problems, the technical scheme of the invention can comprehensively and effectively sterilize the inner cavity of the indoor unit of the air conditioner without increasing the equipment cost, is more convenient to use and improves the user experience.
The following description will be given by way of specific examples.
According to a first aspect of the embodiments of the present application, there is provided a control method for an air conditioner, which is applied to the air conditioner, the air conditioner includes an outdoor unit and an indoor unit, wherein the outdoor unit includes an outdoor casing and an outdoor unit fan, and the indoor unit includes an indoor casing, a controller, an indoor unit fan, and a heat exchanger. When in a heating sterilization mode, the heat exchanger is used for generating hot air flow, the hot air flow flows out from the coil pipe outlet of the heat exchanger, can be guided to the lower cavity of the shell of the indoor unit under the driving of the fan of the indoor unit and flows out from the air outlet of the indoor unit, and therefore sterilization and disinfection of the lower cavity of the indoor unit are achieved; when the fan of the indoor unit stops running and the air outlet of the indoor unit is closed, the hot air flow can naturally rise to the upper cavity of the shell of the indoor unit and can flow out from the air inlet of the indoor unit, so that the sterilization and disinfection of the upper cavity of the indoor unit are realized. When heating and sterilizing, the temperature of the heat exchanger reaches the target set temperature through the operation of the air conditioner, so that the hot air flow reaches the sterilizing temperature.
Still be provided with temperature detection sensor on heat exchanger's the coil pipe for detect heat exchanger's coil pipe temperature, be used for detecting the first temperature value and the second temperature value of heat exchanger in this application, so that when the heating sterilization mode, the controller of air conditioner can adjust the expansion valve opening and the compressor operating frequency of air conditioner according to first temperature value or second temperature value, so that with first temperature value or second temperature value control in suitable within range.
In this embodiment, the expansion valve is an important component of the refrigeration system and is typically mounted at the evaporator inlet. The expansion valve enables a high-temperature high-pressure gas refrigerant to be a low-temperature low-pressure liquid refrigerant through throttling, then the refrigerant absorbs heat in the evaporator to achieve a refrigerating effect, the expansion valve controls the flow of the valve through the change of the superheat degree of the evaporator, and the phenomena of insufficient utilization of the area of the heat exchanger and liquid impact of the compressor are prevented.
Referring to fig. 1, fig. 1 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention.
The control method of the air conditioner comprises the following steps:
s1: a start instruction signal of the air conditioner is detected.
S2: acquiring an operation mode of an air conditioner;
s3: if the operation mode is a heating sterilization mode, the control method of the air conditioner comprises the following steps:
controlling the air conditioner to operate according to a first preset sterilization strategy, so that hot air flows to a lower cavity of the indoor unit for sterilization and disinfection;
and controlling the air conditioner to operate according to a second preset sterilization strategy, so that the hot air flow flows to the upper cavity of the indoor unit for sterilization and disinfection.
According to the embodiment of the invention, the first preset sterilization strategy and the second preset sterilization strategy are set, the air conditioner is controlled to operate according to the first preset sterilization strategy, so that hot air flows to the lower cavity of the indoor unit for sterilization and disinfection, and the air conditioner is controlled to operate according to the second preset sterilization strategy, so that hot air flows to the upper cavity of the indoor unit for sterilization and disinfection, therefore, the inner cavity of the indoor unit of the air conditioner can be comprehensively and effectively sterilized and disinfected on the basis of the structure of original equipment, the equipment cost is not increased, the use is more convenient, and the user experience is improved.
The following is a detailed description of the respective steps of the control method of the air conditioner.
Step S1: a start instruction signal of the air conditioner is detected.
The air conditioner is a variable frequency air conditioner with adjustable rotating speed or frequency, the starting instruction signal of the air conditioner comprises a starting instruction sent to the air conditioner by a user through a remote controller or a mobile terminal bound with the air conditioner, the starting instruction can be an electrifying starting signal of the air conditioner, at the moment, the air conditioner runs in a default mode after being started, the user can manually change the running mode by using the remote controller, and the air conditioner can also be an electrifying starting signal running in a specified running mode, such as a heating sterilization starting signal. The bound mobile terminal can be an intelligent device such as a smart phone, an interactive tablet, a desktop computer and an intelligent bracelet.
Step S2: and acquiring the running mode of the air conditioner.
The operation modes of the air conditioner may include a conventional cooling mode, a heating mode, a dehumidifying mode, a heat sterilization mode, and other operation modes. When the air conditioner is started, the air conditioner can directly enter a refrigeration mode, and can be immediately changed into other operation modes under a mode change instruction of a user, or when the ambient temperature meets the condition of entering other modes, the air conditioner automatically enters the mode and operates the air conditioner in the mode.
In an alternative embodiment, please refer to fig. 2, and fig. 2 is a flowchart illustrating a step S2 of the control method of the air conditioner according to the embodiment of the present invention.
Step S2 includes:
s21: and acquiring the running mode of the air conditioner.
S22: it is determined whether the air conditioner enters a heat sterilization mode.
Optionally, after the user manually operates the air conditioner through the remote controller or operates the air conditioner in other manners, if a signal for entering the heating and sterilizing mode is detected, it is determined that the air conditioner enters the heating and sterilizing mode.
Referring to fig. 3, fig. 3 is a flowchart illustrating the step S3 of the control method according to the embodiment of the invention.
Step S3, if the operation mode is the heating sterilization mode, the method for controlling the air conditioner includes:
s31: and controlling the air conditioner to operate according to a first preset sterilization strategy, so that hot air flows to the lower cavity of the indoor unit for sterilization and disinfection.
In this embodiment, the hot airflow for sterilization is generated by the heat exchanger of the indoor unit, flows out from the coil outlet of the heat exchanger, and can flow to the lower cavity of the casing of the indoor unit under the guidance of the fan of the indoor unit, and then flows out from the air outlet of the lower cavity.
The heat sterilization stage based on the first preset sterilization strategy is a first sterilization stage, and the first preset sterilization strategy comprises:
when the air outlet of the indoor unit is opened, if the first temperature value of the heat exchanger of the air conditioner is smaller than the first preset temperature value, the opening degree of the expansion valve and/or the operation frequency of the compressor are/is adjusted so that the first temperature value reaches the first preset temperature value, the first preset temperature value is a temperature value which can be used for sterilization, and at the temperature value, the hot air flow can kill microorganisms or bacteria in the cavity of the indoor unit. Referring to fig. 4, based on the first predetermined sterilization strategy, fig. 4 is a flowchart illustrating the step S31 of the control method according to the embodiment of the invention.
Step S31, including the steps of:
s311: the air deflector at the air outlet of the indoor unit is opened, and the fan of the indoor unit is started to guide hot air flow to the lower cavity of the indoor unit for sterilization and disinfection.
As shown in fig. 5, the lower chamber of the cabinet includes a region from the air duct 40, the lower portion of the cabinet, the air outlet, and below the heat exchanger 20.
Based on a first preset sterilization strategy, the controller of the air conditioner can control the air deflector at the position of the air outlet driven by the motor to be opened to a preset angle.
Based on the first preset sterilization strategy, the controller of the air conditioner can control the fan of the indoor unit to operate at a first preset rotating speed, so that hot air flow is guided to the air outlet of the indoor unit and is filled in the lower cavity of the indoor unit, and sterilization and disinfection are facilitated. The first preset rotation speed may be between the first internal rotation speed and the second internal rotation speed, and the first internal rotation speed and the second internal rotation speed may be determined by the inventor according to business experience, which is not limited in this embodiment.
Based on the first preset sterilization strategy, the controller of the air conditioner may control the fan of the outdoor unit to operate at a second preset rotation speed, so as to achieve normal operation in the heating sterilization mode, where the second preset rotation speed may be between the first external rotation speed and the second external rotation speed, and the first external rotation speed and the second external rotation speed may be determined by the inventor according to business experience, which is not limited in this embodiment.
Based on the first preset sterilization strategy, the controller of the air conditioner may control the opening degree of the expansion valve to a first preset opening degree, and control the operating frequency of the compressor to a first preset operating frequency. In this embodiment, specific values of the first preset opening and the first preset operating frequency are set by the inventor according to business experience, and the specific values are not limited herein.
S312: a first temperature value of the heat exchanger is obtained.
The outer surface of the coil of the heat exchanger is provided with a temperature detection probe which is used for detecting the temperature of the coil of the heat exchanger, such as a first temperature value or a second temperature value.
S313: if the first temperature value is smaller than a first preset temperature value, adjusting the opening of the expansion valve and/or the operation frequency of the compressor according to the first temperature value so as to enable the first temperature value to be larger than or equal to the first preset temperature value.
In this embodiment, in order to achieve a better sterilization effect, the coil temperature of the heat exchanger needs to make the temperature of the flowing hot air flow reach the temperature required for sterilization. Therefore, a first preset temperature value is set in the first preset sterilization strategy, the first preset temperature value is the temperature of the coil of the heat exchanger, and when the temperature of the coil reaches the first preset temperature value, hot air flowing out of the outlet of the coil can kill bacteria or germs. The specific value of the first preset temperature value may be 58 degrees, or other values.
In the heating sterilization mode, the opening degree of the expansion valve or the operation frequency of the compressor can be adjusted according to the difference between the first temperature value and the first preset temperature value, so that the first temperature value quickly reaches the first preset temperature value and is maintained above the first preset temperature value.
In an optional embodiment, if the first temperature value is less than the first preset temperature value, the opening of the expansion valve is adjusted to be smaller according to the first temperature value, and/or the operation frequency of the compressor is adjusted to be higher, so that the first temperature value is greater than or equal to the first preset temperature value.
In an alternative embodiment, the temperature of the coils of the heat exchanger is controlled based on safety considerations of the cooling system of the air conditioner, and therefore the first predetermined sterilization strategy is also set with a second predetermined temperature value. The specific value of the first preset temperature value may be 60 degrees, or other values.
In the heating sterilization mode, when the first temperature value is greater than or equal to the second preset temperature value, in order to protect the cooling system of the air conditioner, the opening degree of the expansion valve and/or the operation frequency of the compressor can be adjusted according to the first temperature value, so that the first temperature value is equal to the first preset temperature value, or the first temperature value is between the first preset temperature value and the second preset temperature value.
In this embodiment, in the first sterilization stage, when the expansion valve opening degree and the compressor operation frequency are adjusted based on the change of the first temperature value, the expansion valve opening degree adjustment range may be between a first opening degree and a second opening degree, the compressor operation frequency adjustment range may be between a first frequency and a second frequency, the first opening degree and the second opening degree may be set by the inventor according to business experience, and the first frequency and the second frequency may be determined by the inventor according to business experience, which is not limited in this embodiment.
In an alternative embodiment, the first predetermined sterilization strategy is further configured with a first predetermined time value, which may be 35 minutes or other time values, in order to achieve better sterilization effect.
Step S31, further including:
s314: and when the first temperature value is equal to a first preset temperature value or the first temperature value is between the first preset temperature value and a second preset temperature value, controlling the air conditioner to operate to a first preset time value according to the current opening of the expansion valve and the current operation frequency of the compressor.
If the first preset time value can be 35 minutes, when the first temperature value meets the sterilization temperature requirement, the air conditioner is controlled to continuously operate for 35 minutes according to the current opening of the expansion valve and the current operation frequency of the compressor, and therefore a better sterilization and disinfection effect is achieved.
Referring to fig. 5, fig. 5 is a schematic flow chart illustrating a hot air flow in a first sterilization stage according to an embodiment of the present invention.
In fig. 5, the indoor unit includes a casing 10, a heat exchanger 20, a fan 30 and an air duct 40 installed in the casing 10, an air outlet is provided at a lower portion of one side of the casing 10 close to a user, and an air deflector 50 is provided at the air outlet. The lower chamber of the cabinet 10 includes the area from the air duct 40, the lower part of the cabinet, the air outlet, and the lower side of the heat exchanger 20, the upper chamber of the cabinet 10 includes the area between the fan 30 and the panel of the cabinet, and the top plate of the cabinet, and the upper and lower chambers are all the areas inside the cabinet 10.
The end of the coil of the heat exchanger 20 is a hot air outlet, and in the first sterilization stage, after the hot air flows out from the coil outlet, if the fan 30 runs at a low speed, the hot air can be guided and blown out from the air duct 40 and reach the lower cavity of the casing 10, so that the lower cavity of the casing 10 of the indoor unit can be sterilized and disinfected.
S32: and controlling the air conditioner to operate according to a second preset sterilization strategy, so that the hot air flow flows to the upper cavity of the indoor unit for sterilization and disinfection.
In this embodiment, the hot air flow for sterilization is generated by the heat exchanger of the indoor unit and flows out from the coil outlet of the heat exchanger, and if the fan of the indoor unit stops operating, the hot air flow is not guided any more, and at this time, the hot air flow naturally rises to the upper cavity of the indoor unit and then flows out from the air inlet of the upper cavity.
The heat sterilization stage based on the second preset sterilization strategy is a second sterilization stage, and the second preset sterilization strategy comprises:
when the rotating speed of a fan of an indoor unit of the air conditioner is zero, if the second temperature value of a heat exchanger of the air conditioner is smaller than a third preset temperature value, the opening degree of an expansion valve and/or the running frequency of a compressor are/is adjusted so that the second temperature value reaches the third preset temperature value, the third preset temperature value is a temperature value capable of being used for sterilization, and at the temperature value, the hot air flow can kill microorganisms or bacteria in a cavity of the indoor unit.
Referring to fig. 6, based on the second predetermined sterilization strategy, fig. 6 is a flowchart illustrating the step S32 of the control method according to the embodiment of the invention.
Step S32, including the steps of:
s321: the rotating speed of the fan of the indoor unit is adjusted to zero, so that hot air flows to the upper cavity of the indoor unit for sterilization.
Fig. 7 is a schematic flow diagram of the hot air flow in the second sterilization stage according to the embodiment of the present invention, as shown in fig. 7.
The lower cavity of the cabinet 10 includes an area from the air duct 40, the lower portion of the cabinet, the air outlet, and below the heat exchanger 20.
Based on the second preset sterilization strategy, the controller of the air conditioner can control the motor to drive the air deflector at the air outlet to be closed, or a user manually closes the air deflector, so that hot air can be prevented from flowing out of the lower cavity to affect sterilization and disinfection of the upper cavity of the indoor unit. Based on the second preset sterilization strategy, the controller of the air conditioner can control the fan of the indoor unit to stop running, namely, the rotating speed of the fan of the indoor unit is adjusted to zero, so that hot air flow loses the guiding force of the fan and naturally rises to flow to the upper cavity of the indoor unit for sterilization and disinfection.
Based on the second preset sterilization strategy, the controller of the air conditioner may control the fan of the outdoor unit to operate at a third preset rotation speed, so as to achieve normal operation in the heating sterilization mode, where the third preset rotation speed may be a rotation speed between a third external rotation speed and a fourth external rotation speed, and the third external rotation speed and the fourth external rotation speed may be determined by the inventor according to business experience, which is not limited in this embodiment.
Based on the second preset sterilization strategy, the controller of the air conditioner may control the opening degree of the expansion valve to a second preset opening degree, and control the operating frequency of the compressor to a second preset operating frequency. In this embodiment, the specific values of the second preset opening and the second preset operating frequency are set by the inventor according to business experience, and the specific values are not limited herein. And, the second preset opening degree may be the same as or different from the first preset opening degree, and the second preset operating frequency may be the same as or different from the first preset operating frequency.
S322: a second temperature value of the heat exchanger is obtained.
The outer surface of the coil of the heat exchanger is provided with a temperature detection probe which is used for detecting the temperature of the coil of the heat exchanger, such as a first temperature value or a second temperature value.
S323: and if the second temperature value is less than a third preset temperature value, adjusting the opening of the expansion valve and/or the operation frequency of the compressor according to the second temperature value so as to enable the second temperature value to be greater than or equal to the third preset temperature value.
In this embodiment, in order to achieve a better sterilization effect, the coil temperature of the heat exchanger needs to make the temperature of the flowing hot air flow reach the temperature required for sterilization. Therefore, a third preset temperature value is set in the second preset sterilization strategy, the third preset temperature value is the temperature of the coil of the heat exchanger, and when the temperature of the coil reaches the third preset temperature value, hot air flowing out of the outlet of the coil can kill bacteria or germs. The third predetermined temperature value may be 58 degrees, or other values.
In the heating sterilization mode, the opening of the expansion valve or the operation frequency of the compressor can be adjusted according to the difference between the second temperature value and the third preset temperature value, so that the second temperature value quickly reaches the third preset temperature value and is maintained above the third preset temperature value.
In an optional embodiment, if the second temperature value is lower than the third preset temperature value, the opening of the expansion valve is adjusted to be smaller according to the second temperature value, and/or the operation frequency of the compressor is adjusted to be higher, so that the second temperature value is higher than or equal to the third preset temperature value.
In an alternative embodiment, the coil temperature of the heat exchanger needs to be controlled based on safety considerations of the cooling system of the air conditioner, and therefore the second predetermined sterilization strategy is also set with a fourth predetermined temperature value. The fourth preset temperature value may be the same as or different from the second preset temperature value, and a specific value of the fourth preset temperature value may be 60 degrees, or another value.
In the heating sterilization mode, when the second temperature value is greater than or equal to a fourth preset temperature value, the opening of the expansion valve and/or the operation frequency of the compressor are/is adjusted according to the second temperature value, so that the second temperature value is equal to the fourth preset temperature value, or the second temperature value is between the third preset temperature value and the fourth preset temperature value.
In this embodiment, in the second sterilization step, when the expansion valve opening degree and the compressor operation frequency are adjusted based on the change in the second temperature value, the expansion valve opening degree adjustment range may be between the first opening degree and the second opening degree, and the compressor operation frequency adjustment range may be between the third frequency and the fourth frequency.
In an alternative embodiment, in order to achieve better sterilization and disinfection effects, the second predetermined sterilization strategy is further configured with a second predetermined time value, which may be the same as or different from the first predetermined time value of the first sterilization stage, and the second predetermined time value may be 35 minutes, or other time values.
Step S32, further including:
s324: and when the second temperature value is equal to a third preset temperature value or the second temperature value is between the third preset temperature value and a fourth preset temperature value, controlling the air conditioner to operate to a second preset time value according to the current opening of the expansion valve and the current operation frequency of the compressor.
If the second preset time value can be 35 minutes, when the second temperature value meets the sterilization temperature requirement, the air conditioner is controlled to continuously operate for 35 minutes according to the current opening of the expansion valve and the current operation frequency of the compressor, and therefore a better sterilization and disinfection effect is achieved.
In fig. 7, the upper cavity of the casing 10 includes the areas between the fan 30 and the casing panel and the casing top plate, and the upper and lower cavities are all areas within the casing 10.
The end of the coil of the heat exchanger 20 is a hot air outlet, and in the second sterilization stage, after the hot air flows out from the coil outlet, if the fan 30 stops operating and does not guide the hot air any more, the hot air naturally rises to the upper cavity of the casing 10 after flowing out from the coil outlet, and can flow out from the air inlet of the upper cavity of the casing by a small amount, so that the upper cavity of the casing 10 of the indoor unit can be sterilized and disinfected.
In the above embodiment, through setting for first preset strategy of disinfecting and the second preset strategy of disinfecting, and according to the operation of first preset strategy of disinfecting control air conditioner, make the hot gas flow direction indoor set's lower cavity disinfect the disinfection, according to the operation of second preset strategy of disinfecting control air conditioner, make the hot gas flow direction indoor set's last cavity disinfect the disinfection, thereby can be on the structure basis of former equipment, can carry out comprehensive effectual disinfection of disinfecting to the indoor set internal cavity of air conditioner, do not increase equipment cost, and it is more convenient to use, user experience has been promoted.
In an alternative embodiment, if the operation mode is the heating sterilization mode, at a suitable time point, the air conditioner needs to exit the heating sterilization mode, and therefore the method for controlling the air conditioner further includes the steps of:
and controlling the air conditioner to exit the heating sterilization mode in response to the heating sterilization mode exit instruction.
Responding to a heating sterilization mode exit instruction, comprising:
responding to the operation time of the heating sterilization mode reaching a third preset time value; or,
providing an instruction in response to a heat sterilization mode input by a user; or,
in response to a start instruction of the other modes of the air conditioner.
The third preset time value may be a third threshold of the operation time of the heat sterilization mode, which is set by the inventor according to business experience. When the operation time of the heating sterilization mode of the air conditioner exceeds a third preset time value, the air conditioner is determined to exit the heating sterilization mode, and the third preset time value may be the sum of the first preset time value and the second preset time value, that is, the third preset time value may be 70 minutes. For better sterilization, the third preset time value may be 140 minutes, which is the time required for the two cycles of the thermal sterilization mode, and may be other preset time values.
In an optional embodiment, if the operation mode is a heating sterilization mode, the method for controlling an air conditioner further includes:
controlling the air conditioner to execute an auxiliary sterilization instruction, wherein the auxiliary sterilization comprises one or more of the following sterilization modes:
nanoe sterilization, ozone ion sterilization, UVC deep ultraviolet sterilization, or hypochlorous acid sterilization.
Under the heating sterilization mode, the indoor unit can be comprehensively and effectively sterilized by combining Nanoe sterilization, ozone ion sterilization, UVC deep ultraviolet sterilization or hypochlorous acid sterilization.
The Nanoe (Chinese name: Nanoyi) is a new generation of weakly acidic healthy ion Nanoe, is a nano-scale charged water particle, contains a large amount of OH free radicals, can decompose or lose activity by capturing hydrogen (H) in organic matters such as peculiar smell, bacteria, allergens and the like, has 7 great effects of removing bacteria, mold, peculiar smell, effectively inhibiting pollen allergens and other allergens, decomposing common harmful substances in PM2.5, beautifying, moisturizing and the like, and aims to solve various air problems.
In an alternative embodiment, the opening degree of the expansion valve, the frequency of the compressor, the rotation speed of the indoor fan, and the rotation speed of the indoor fan in the heat sterilization mode are also set according to the cooling capacity of the air conditioner. The opening of the expansion valve, the frequency of the compressor and the rotation speed of the motor when the refrigerating capacity of the air conditioner is 1 are different from the opening of the expansion valve, the frequency of the compressor and the rotation speed of the motor when the refrigerating capacity of the air conditioner is 2.
In the above embodiment, the sequence of steps S31 and S32 is not limited, and the method in step S31 may be immediately executed to perform the first stage of sterilization when the heat sterilization mode is activated, and then the method in step S32 may be executed to perform the second stage of sterilization; it is also possible to immediately perform the method in step S32 for the second stage of sterilization and then perform the method in step S31 for the first stage of sterilization when the heat sterilization mode is activated.
It should be noted that: the unit "degree" of the temperature value in the above-described respective embodiments of the present invention may be "degrees centigrade".
By applying the technical scheme of the invention, the first preset sterilization strategy and the second preset sterilization strategy are set, the air conditioner is controlled to operate according to the first preset sterilization strategy, so that hot air flows to the lower cavity of the indoor unit for sterilization and disinfection, and the air conditioner is controlled to operate according to the second preset sterilization strategy, so that the hot air flows to the upper cavity of the indoor unit for sterilization and disinfection, therefore, the internal cavity of the indoor unit of the air conditioner can be comprehensively and effectively sterilized and disinfected on the basis of the structure of original equipment, the equipment cost is not increased, the use is more convenient, and the user experience is improved.
According to a second aspect of the embodiments of the present application, a control device of an air conditioner is provided, please refer to fig. 8, and fig. 8 shows a schematic structural diagram of the control device of the air conditioner according to the embodiments of the present invention.
An obtaining module 801, configured to obtain an operation mode of an air conditioner;
the operation module 802 is configured to, if the operation mode is the heating sterilization mode, perform a heating sterilization control method for the air conditioner, including:
controlling the air conditioner to operate according to a first preset sterilization strategy, so that hot air flows to a lower cavity of the indoor unit for sterilization and disinfection;
and controlling the air conditioner to operate according to a second preset sterilization strategy, so that hot air flows to the upper cavity of the indoor unit for sterilization and disinfection.
In an alternative embodiment, as shown in FIG. 9, the run module 802 includes:
the first sterilization module 8021 is used for controlling the air conditioner to operate according to a first preset sterilization strategy, so that hot air flows to the lower cavity of the indoor unit for sterilization and disinfection;
the second sterilization module 8022 is configured to control the air conditioner to operate according to a second preset sterilization strategy, so that the hot air flows to the upper cavity of the indoor unit for sterilization and disinfection.
In the control device of the air conditioner of the present invention, the operation of each module is common to the control method of the air conditioner in the above embodiments, and therefore, the detailed description is omitted.
In an alternative embodiment, the control apparatus of an air conditioner further includes:
and the exit module is used for responding to the exit instruction of the heating sterilization mode and controlling the air conditioner to exit the heating sterilization mode.
According to the control device of the air conditioner, the first preset sterilization strategy and the second preset sterilization strategy are set, the air conditioner is controlled to operate according to the first preset sterilization strategy, so that hot air flows to the lower cavity of the indoor unit to be sterilized and disinfected, the air conditioner is controlled to operate according to the second preset sterilization strategy, and the hot air flows to the upper cavity of the indoor unit to be sterilized and disinfected, therefore, the inner cavity of the indoor unit of the air conditioner can be comprehensively and effectively sterilized and disinfected on the basis of the structure of original equipment, the equipment cost is not increased, the use is more convenient, and the user experience is improved.
According to a third aspect of the embodiments of the present application, an air conditioner is provided, please refer to fig. 10, where fig. 10 is a schematic structural diagram of the air conditioner shown in the embodiments of the present invention.
The air conditioner 100 includes: a memory 101, a processor 102, and a computer program stored in the memory 101 and executable by the processor 102, wherein the processor 102 implements the control method of the air conditioner according to any one of the above embodiments when executing the computer program.
According to the technical scheme, comprehensive and effective sterilization and disinfection of the interior of the indoor unit of the air conditioner can be realized under the condition that the equipment cost is not increased, the use is convenient, and the user experience is improved.
The air conditioner also comprises a compressor, a heat exchanger, an indoor fan, an outdoor fan and other components.
It should be noted that: the unit "degree" of the temperature value in the above-described respective embodiments of the present invention may be "degrees centigrade".
According to the air conditioner, the first preset sterilization strategy and the second preset sterilization strategy are set, the air conditioner is controlled to operate according to the first preset sterilization strategy, so that hot air flows to the lower cavity of the indoor unit to be sterilized and disinfected, the air conditioner is controlled to operate according to the second preset sterilization strategy, and the hot air flows to the upper cavity of the indoor unit to be sterilized and disinfected, so that the inner cavity of the indoor unit of the air conditioner can be comprehensively and effectively sterilized and disinfected on the basis of the structure of original equipment, the equipment cost is not increased, the air conditioner is more convenient to use, and the user experience is improved.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims (14)

1. A control method of an air conditioner is applied to the air conditioner and is characterized in that,
after the air conditioner is started, the method comprises the following steps:
acquiring an operation mode of an air conditioner;
if the operation mode is a heating sterilization mode, the control method of the air conditioner comprises the following steps:
controlling the air conditioner to operate according to a first preset sterilization strategy, so that hot air flows to a lower cavity of the indoor unit for sterilization and disinfection;
and controlling the air conditioner to operate according to a second preset sterilization strategy, so that hot air flows to an upper cavity of the indoor unit for sterilization and disinfection.
2. The control method of an air conditioner according to claim 1, wherein the first preset sterilization strategy includes:
when an air outlet of the indoor unit is opened, if a first temperature value of a heat exchanger of the air conditioner is smaller than a first preset temperature value, adjusting the opening degree of an expansion valve and/or the running frequency of a compressor so as to enable the first temperature value to reach the first preset temperature value;
the operation of the air conditioner is controlled according to a first preset sterilization strategy, so that hot air flows to the lower cavity of the indoor unit for sterilization and disinfection, and the method comprises the following steps:
opening an air deflector at an air outlet of an indoor unit, and starting a fan of the indoor unit to guide hot air flow to a lower cavity of the indoor unit for sterilization and disinfection;
acquiring a first temperature value of the heat exchanger;
if the first temperature value is smaller than a first preset temperature value, adjusting the opening of an expansion valve and/or the operation frequency of a compressor according to the first temperature value so as to enable the first temperature value to be larger than or equal to the first preset temperature value.
3. The method according to claim 2, wherein if the first temperature value is lower than a first predetermined temperature value, the opening of the expansion valve is decreased and/or the operating frequency of the compressor is increased according to the first temperature value, so that the first temperature value is greater than or equal to the first predetermined temperature value.
4. The control method of an air conditioner according to claim 2, wherein the first preset sterilization strategy is further set with a second preset temperature value;
when the first temperature value is greater than or equal to the second preset temperature value, adjusting the opening of the expansion valve and/or the operation frequency of the compressor according to the first temperature value so as to enable the first temperature value to be equal to the first preset temperature value or enable the first temperature value to be between the first preset temperature value and the second preset temperature value.
5. The control method of an air conditioner according to claim 4, wherein the first preset sterilizing strategy is further set with a first preset time value;
the operation of the air conditioner is controlled according to a first preset sterilization strategy, so that hot air flows to the lower cavity of the indoor unit for sterilization and disinfection, and the air conditioner further comprises:
and when the first temperature value is equal to a first preset temperature value or the first temperature value is between the first preset temperature value and a second preset temperature value, controlling the air conditioner to operate to the first preset time value by using the current opening of the expansion valve and the current operating frequency of the compressor.
6. The control method of an air conditioner according to claim 1, wherein the second preset sterilization strategy includes:
when the rotating speed of a fan of an indoor unit of the air conditioner is zero, if a second temperature value of a heat exchanger of the air conditioner is smaller than a third preset temperature value, adjusting the opening of an expansion valve and/or the running frequency of a compressor so as to enable the second temperature value to reach the third preset temperature value;
the operation of the air conditioner is controlled according to a second preset sterilization strategy, so that hot air flows to an upper cavity of the indoor unit for sterilization and disinfection, and the method comprises the following steps:
adjusting the rotating speed of a fan of the indoor unit to zero, so that hot air flows to an upper cavity of the indoor unit for sterilization and disinfection;
acquiring a second temperature value of the heat exchanger;
and if the second temperature value is less than a third preset temperature value, adjusting the opening of an expansion valve and/or the operation frequency of the compressor according to the second temperature value so as to enable the second temperature value to be greater than or equal to the third preset temperature value.
7. The method of claim 6, wherein if the second temperature value is lower than a third predetermined temperature value, the opening of the expansion valve is decreased and/or the operation frequency of the compressor is increased according to the second temperature value, so that the second temperature value is higher than or equal to the third predetermined temperature value.
8. The control method of an air conditioner according to claim 6, wherein the second preset sterilization strategy is further set with a fourth preset temperature value;
and when the second temperature value is greater than or equal to the fourth preset temperature value, adjusting the opening of the expansion valve and/or the operation frequency of the compressor according to the second temperature value so as to enable the second temperature value to be equal to the fourth preset temperature value or enable the second temperature value to be between the third preset temperature value and the fourth preset temperature value.
9. The control method of an air conditioner according to claim 8, wherein the second preset sterilizing strategy is further set with a second preset time value;
the operation of the air conditioner is controlled according to a second preset sterilization strategy, so that hot air flows to the upper cavity of the indoor unit for sterilization and disinfection, and the method further comprises the following steps:
and when the second temperature value is equal to the third preset temperature value, or the second temperature value is between the third preset temperature value and the fourth preset temperature value, controlling the air conditioner to operate to the second preset time value by using the current opening of the expansion valve and the current operation frequency of the compressor.
10. The method for controlling an air conditioner according to claim 1, wherein if the operation mode is a heating sterilization mode, the method for controlling an air conditioner further comprises the steps of:
and controlling the air conditioner to exit the heating sterilization mode in response to the heating sterilization mode exit instruction.
11. The control method of an air conditioner according to claim 10, wherein said responding to a heat sterilization mode exit instruction includes:
responding to the operation time of the heating sterilization mode reaching a third preset time value; or,
providing an instruction in response to a heat sterilization mode input by a user; or,
responding to the starting instructions of other modes of the air conditioner.
12. The method for controlling an air conditioner according to claim 1, wherein if the operation mode is a heating sterilization mode, the method for controlling an air conditioner further comprises:
controlling the air conditioner to execute an auxiliary sterilization instruction, wherein the auxiliary sterilization comprises one or more of the following sterilization modes:
nanoe sterilization, ozone ion sterilization, UVC deep ultraviolet sterilization, and hypochlorous acid sterilization.
13. A control apparatus of an air conditioner, comprising:
the acquisition module is used for acquiring the operation mode of the air conditioner;
an operation module, configured to, if the operation mode is a heating sterilization mode, perform a heating sterilization control method of the air conditioner, including: controlling the air conditioner to operate according to a first preset sterilization strategy, so that hot air flows to a lower cavity of the indoor unit for sterilization and disinfection; and controlling the air conditioner to operate according to a second preset sterilization strategy, so that hot air flows to an upper cavity of the indoor unit for sterilization and disinfection.
14. An air conditioner comprising: a memory, a processor, and a computer program stored in the memory that is executable by the processor,
the processor implements the control method of the air conditioner according to any one of claims 1 to 12 when executing the computer program.
CN202210079930.5A 2022-01-24 2022-01-24 Control method and device of air conditioner and air conditioner Pending CN114459117A (en)

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CN113124489A (en) * 2021-05-25 2021-07-16 珠海格力电器股份有限公司 Air conditioner
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913429A (en) * 2014-03-10 2015-09-16 广东美的制冷设备有限公司 Method for sterilization of air conditioner and air conditioner
CN105972764A (en) * 2016-05-25 2016-09-28 广东美的制冷设备有限公司 Sterilization method and device and air conditioner
CN109210631A (en) * 2018-08-21 2019-01-15 珠海格力电器股份有限公司 Air conditioner indoor unit with sterilization function, control method and air conditioner
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