CN115264839A - Self-cleaning control method and device of air conditioner and air conditioner - Google Patents

Self-cleaning control method and device of air conditioner and air conditioner Download PDF

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Publication number
CN115264839A
CN115264839A CN202210753879.1A CN202210753879A CN115264839A CN 115264839 A CN115264839 A CN 115264839A CN 202210753879 A CN202210753879 A CN 202210753879A CN 115264839 A CN115264839 A CN 115264839A
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China
Prior art keywords
humidity
outdoor unit
self
adjust
opening degree
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Pending
Application number
CN202210753879.1A
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Chinese (zh)
Inventor
李江飞
矫立涛
樊明敬
陈营
冯景学
陈睿
王珂
周星宇
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202210753879.1A priority Critical patent/CN115264839A/en
Publication of CN115264839A publication Critical patent/CN115264839A/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
    • F24F11/89—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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • 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
    • F24F11/62—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
    • 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
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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

Abstract

The invention provides a self-cleaning control method and device of an air conditioner and the air conditioner, wherein the method comprises the following steps: acquiring first humidity information; and controlling an electronic expansion valve of the outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the first humidity information is smaller than a first preset threshold value. According to the self-cleaning control method and device for the air conditioner and the air conditioner, the opening degree of the electronic expansion valve is dynamically adjusted and/or the running frequency of the outdoor unit is controlled to be dynamically adjusted when the refrigerating capacity is decided to be changed based on the indoor first humidity information, so that the frosting environment is analyzed according to the indoor humidity, the refrigerating capacity is compensated through the compressor and/or the electronic expansion valve in the outdoor unit when the indoor humidity is determined to be lower, the wet air is frosted more easily at lower temperature, and the self-cleaning effect is enhanced.

Description

Self-cleaning control method and device of air conditioner and air conditioner
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a self-cleaning control method and device of an air conditioner and the air conditioner.
Background
The self-cleaning of the air conditioner means that the air conditioner utilizes the evaporator frosting principle, when the indoor unit starts self-cleaning, an indoor fan does not rotate, the surface of an evaporator coil pipe is rapidly cooled to be frosted, then rapid temperature rise is carried out for defrosting, the frosting is changed into water flow, the purpose of cleaning the evaporator is achieved, and the outdoor self-cleaning is the same.
In the existing self-cleaning mode, the control logic is located at a fixed time period to keep the operation frequency of the outdoor unit and the opening degree of the electronic expansion valve at corresponding values, and if the environmental humidity is low, the condensed frost is thin, so that the self-cleaning effect is poor.
Disclosure of Invention
The invention provides a self-cleaning control method and device of an air conditioner and the air conditioner, which are used for solving the defect of poor self-cleaning effect in the prior art.
The invention provides a self-cleaning control method of an air conditioner, which comprises the following steps:
acquiring first humidity information;
controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the first humidity information is smaller than a first preset threshold value;
the first humidity information is indoor humidity collected in an indoor unit self-cleaning mode; the first preset threshold is a lower limit value of a preset indoor humidity range.
According to the self-cleaning control method of the air conditioner provided by the invention, when the first humidity information is less than a first preset threshold, the method for controlling the electronic expansion valve of the outdoor unit to adjust the opening degree comprises the following steps:
acquiring an opening degree variation corresponding to a first target subinterval according to the first target subinterval corresponding to the first humidity information;
adjusting the opening degree of the electronic expansion valve based on the opening degree variation;
the first target subinterval is obtained by dividing a humidity interval smaller than the first preset threshold; the opening variation is smaller than zero.
According to the self-cleaning control method of the air conditioner provided by the present invention, in the case that the first humidity information is smaller than a first preset threshold, controlling the outdoor unit to adjust the operation frequency comprises:
acquiring a frequency variation corresponding to a second target subinterval according to the second target subinterval corresponding to the first humidity information;
adjusting the running frequency of the outdoor unit based on the frequency variation;
the second target subinterval is obtained by dividing a humidity interval smaller than the first preset threshold; the frequency variation is greater than zero.
According to the self-cleaning control method of the air conditioner provided by the invention, when the first humidity information is smaller than a first preset threshold, the method for controlling the electronic expansion valve of the outdoor unit to adjust the opening degree and controlling the outdoor unit to adjust the running frequency comprises the following steps:
dividing the humidity range smaller than the first preset threshold value into at least two humidity subintervals;
if the first humidity information is determined to be in a first humidity subinterval, acquiring an opening degree variation corresponding to the first humidity subinterval, so that the electronic expansion valve can adjust the opening degree according to the opening degree variation;
and if the first humidity information is determined to be in a second humidity subinterval, acquiring an opening degree variation and a frequency variation corresponding to the second humidity subinterval, so that the electronic expansion valve can adjust the opening degree according to the opening degree variation, and the outdoor unit can adjust the operation frequency according to the frequency variation.
According to the self-cleaning control method of the air conditioner provided by the invention, after the electronic expansion valve of the outdoor unit is controlled to adjust the opening degree and/or the outdoor unit is controlled to adjust the running frequency, the method further comprises the following steps:
after the preset time, acquiring second humidity information;
controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the second humidity information is smaller than a second preset threshold value;
the second humidity information is outdoor humidity acquired in an outdoor unit self-cleaning mode; the second preset threshold is a lower limit value of a preset outdoor humidity range.
According to the self-cleaning control method of the air conditioner provided by the invention, the method for controlling the electronic expansion valve of the outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency comprises the following steps:
under the condition that the adjusted opening value is determined to be smaller than or equal to the rated minimum opening of the electronic expansion valve, controlling the electronic expansion valve to adjust the opening to the minimum opening;
and controlling the outdoor unit to adjust the operating frequency to the maximum operating frequency under the condition that the adjusted frequency value is determined to be greater than or equal to the rated maximum operating frequency of the outdoor unit.
The present invention also provides a self-cleaning control device of an air conditioner, comprising:
the first humidity acquisition module is used for acquiring first humidity information;
the first control module is used for controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the first humidity information is smaller than a first preset threshold value;
the first humidity information is indoor humidity collected in an indoor unit self-cleaning mode; the first preset threshold is a lower limit value of a preset indoor humidity range.
The invention also provides an air conditioner, which comprises an indoor unit and an outdoor unit, wherein the indoor unit is internally provided with a control processor and a first sensing module, and the first sensing module is arranged on the surface of the indoor unit; the outer surface of the outdoor unit is provided with a second sensing module; the self-cleaning control system further comprises a memory and a program or an instruction which is stored on the memory and can run on the control processor, and the program or the instruction is executed by the control processor to execute the self-cleaning control method of the air conditioner;
the first sensing module is used for collecting indoor humidity in an indoor unit self-cleaning mode; the second sensing module is used for collecting the outdoor humidity in the outdoor unit self-cleaning mode.
The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a self-cleaning control method of an air conditioner as described in any one of the above.
The present invention also provides a computer program product comprising a computer program which, when executed by a processor, implements a self-cleaning control method of an air conditioner as described in any one of the above.
According to the self-cleaning control method and device for the air conditioner and the air conditioner, the opening degree of the electronic expansion valve is dynamically adjusted and/or the running frequency of the outdoor unit is controlled to be dynamically adjusted when the refrigerating capacity is decided to be changed based on the indoor first humidity information, so that the frosting environment is analyzed according to the indoor humidity, the refrigerating capacity is compensated through the compressor and/or the electronic expansion valve in the outdoor unit when the indoor humidity is determined to be lower, the wet air is frosted more easily at lower temperature, and the self-cleaning effect is enhanced.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic flow chart of a self-cleaning control method for an air conditioner according to the present invention;
FIG. 2 is a schematic structural diagram of a self-cleaning control device of an air conditioner according to the present invention;
fig. 3 is a schematic structural diagram of an air conditioner provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Fig. 1 is a schematic flow chart of a self-cleaning control method for an air conditioner according to the present invention. As shown in fig. 1, a self-cleaning control method for an air conditioner according to an embodiment of the present invention includes: step 101, acquiring first humidity information.
The first humidity information is the indoor humidity collected in the indoor unit self-cleaning mode.
It should be noted that the execution main body of the self-cleaning control method of the air conditioner provided by the embodiment of the present invention is a self-cleaning control device of the air conditioner.
The self-cleaning control method of the air conditioner provided by the embodiment of the invention is applied in the scene that after a user activates the self-cleaning mode of the indoor unit of the air conditioning system, the opening degree and/or the operating frequency of the electronic expansion valve of the outdoor unit are/is adaptively compensated through the indoor humidity fed back by the sensing module in real time, so that the refrigerating capacity is matched with the humidity of the current operating environment to frost.
The first humidity information refers to humidity information monitored indoors periodically by a sensing module arranged in the indoor unit at a specified time interval. The working cycle of the sensing module is not particularly limited in the embodiments of the present invention.
Optionally, the sensing module may perform the collection operation in a default duty cycle.
Alternatively, the user may send a cycle change instruction to enable the sensing module to receive and respond to the instruction, and change the working cycle to the cycle indicated by the instruction to perform the collection operation.
It should be noted that, before step 101, a user needs to send an activation instruction through a transmission medium to activate a self-cleaning mode of an indoor unit of the air conditioning system, so that the air conditioning system enters a default frosting stage and a defrosting stage in sequence to take away dust particles and bacteria attached to the inside of the indoor unit.
Optionally, the user may transmit the activation instruction through the control device in a wireless communication manner between the control device and the air conditioning system, so that the air conditioning system initializes the self-cleaning mode of the indoor unit.
Optionally, the user may send an activation instruction in a voice interaction manner, and the air conditioning system receives the activation instruction and initializes a self-cleaning mode of the indoor unit after performing voice recognition.
Specifically, in step 101, after determining that the air conditioner starts the indoor unit self-cleaning mode according to the operation information fed back by each component according to the activation instruction, the self-cleaning control device of the air conditioner receives first humidity information collected by a sensing module in the indoor unit in the current working cycle.
The first humidity information, in%, represents a percentage of a ratio of an actual water vapor pressure in the indoor air to a saturated water vapor pressure at the current air temperature.
And 102, controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the operation frequency under the condition that the first humidity information is smaller than a first preset threshold value.
The first preset threshold is normally a lower limit value of a preset humidity range.
It should be noted that the preset humidity range refers to a humidity range that a human body feels suitable indoors according to an industry standard or a user-defined standard.
The first preset threshold is a lower limit value of a preset indoor humidity range set for the indoor space.
Illustratively, the suitable humidity range in the room (i.e., the preset indoor humidity range) is typically above 50%, so the first preset threshold may be 50%.
Specifically, in step 102, the self-cleaning control device of the air conditioner compares the first humidity information with a first preset threshold value.
If the first humidity information is smaller than a first preset threshold value, it indicates that the current indoor humidity is low, that is, the wet air is not easy to condense at the default refrigeration temperature in the self-cleaning mode of the indoor unit, so that the frosting effect is poor, and a control instruction is generated and distributed to the outdoor unit.
The outdoor unit receives and responds to the control instruction, and adjusts the running states of related components in the outdoor unit so as to increase the refrigerating capacity, further reduce the refrigerating temperature of the indoor unit and strengthen the frosting process.
The embodiment of the invention does not specifically limit the relevant parts of the outdoor unit which change in operation state.
Optionally, the component may be an electronic expansion valve, and the electronic expansion valve receives and responds to the control instruction to adjust the valve opening degree thereof, so as to cause the refrigeration temperature of the indoor unit to change correspondingly.
Wherein, the smaller the valve opening, the lower the refrigeration temperature, and the better the frosting effect. On the contrary, the larger the opening of the valve is, the refrigerating temperature rises along with the opening of the valve, and the frosting effect is relatively weakened.
Alternatively, the component may be a compressor, and the compressor receives and responds to the control command to adjust the operating frequency thereof, so as to cause the refrigerating temperature of the indoor unit to change correspondingly.
Wherein, the higher the running frequency is, the lower the refrigeration temperature is, and the better the frosting effect is. On the contrary, the lower the running frequency is, the refrigerating temperature rises along with the running frequency, and the frosting effect is relatively weakened.
If the first humidity information is larger than or equal to a first preset threshold value, it indicates that the current indoor humidity is above a normal level, namely, the current indoor humidity is kept at the default refrigerating temperature in the self-cleaning mode of the indoor unit for frosting.
According to the embodiment of the invention, on the basis of indoor first humidity information, when the refrigerating capacity is decided to be changed, the opening degree of the electronic expansion valve is dynamically adjusted and/or the running frequency of the outdoor unit is controlled to be dynamically adjusted, so that the frosting environment is analyzed according to the indoor humidity, and when the indoor humidity is determined to be lower, the refrigerating capacity is compensated through the compressor and/or the electronic expansion valve in the outdoor unit, so that the wet air is easier to frost at a lower temperature, and the self-cleaning effect is enhanced.
In addition to any of the above embodiments, when the first humidity information is smaller than a first preset threshold, controlling an electronic expansion valve of an outdoor unit to adjust an opening degree includes: and acquiring the opening variation corresponding to the first target subinterval according to the first target subinterval corresponding to the first humidity information.
And dividing the humidity interval smaller than the first preset threshold value to obtain the first target subinterval. The opening variation is smaller than zero.
It should be noted that, the self-cleaning control device of the air conditioner sets N in advance within the range smaller than the first preset threshold1Dividing points to obtain N1+1 subintervals.
Wherein N is1Is a positive integer greater than or equal to 1. Each subinterval is provided with a different opening degree strategy around the opening degree variation. And each opening degree variation is smaller than zero, and the absolute value of the opening degree variation is reduced along with the increase of the approaching degree of the upper limit value of the corresponding subinterval and the first preset threshold.
Specifically, in step 102, the self-cleaning control device of the air conditioner uses a sub-interval in which the first humidity information is located as a first target sub-interval, and obtains an opening degree variation corresponding to the sub-interval.
And adjusting the opening degree of the electronic expansion valve based on the opening degree variable quantity.
Specifically, the self-cleaning control device of the air conditioner packages the acquired opening variation to a throttle control command, and sends the command to the outdoor unit.
And the outdoor unit receives and responds to the throttle control instruction, controls an electronic expansion valve inside the outdoor unit, and reduces the opening degree of the valve according to the numerical value indicated by the opening degree variable quantity on the basis of the current opening degree.
The embodiment of the present invention does not specifically limit the implementation process of reducing the opening. Exemplarily, in N1Equal to 2 as an example, the range of intervals smaller than the first preset threshold may be divided into three sub-intervals, namely [0,40%), [40%, 45%) and [45%, 50%), where:
if the first humidity information is [0,40%), the corresponding opening degree variation can be set to-20 steps, that is, after the electronic expansion valve receives the throttle control instruction, the opening degree of the valve is reduced under the control of reducing the step motor by 20 steps.
If the first humidity information is [40%, 45%), the corresponding opening degree variation amount may be set to-30 steps, that is, after the electronic expansion valve receives the throttle control instruction, the opening degree of the valve is reduced under the control of reducing the stepping motor by 30 steps.
If the first humidity information is [45%, 50%), the corresponding opening degree variation may be set to-50 steps, that is, after the electronic expansion valve receives the throttle control instruction, the opening degree of the valve is reduced under the control of reducing the step motor by 50 steps.
According to the embodiment of the invention, the opening degree variation is determined based on the subinterval where the first humidity information is located, so that the electronic expansion valve can reduce the valve opening degree by combining the opening degree variation corresponding to the subinterval. The opening of the electronic expansion valve is quantitatively adjusted correspondingly according to the first humidity information, and the refrigerating temperature is reduced by correspondingly compensating the refrigerating capacity, so that the frosting stability is improved, and the self-cleaning effect is enhanced.
On the basis of any of the above embodiments, controlling the outdoor unit to adjust the operating frequency when the first humidity information is smaller than a first preset threshold includes: and acquiring a frequency variation corresponding to a second target subinterval according to the second target subinterval corresponding to the first humidity information.
And the second target subinterval is obtained by dividing the humidity interval smaller than the first preset threshold. The frequency variation is greater than zero.
It should be noted that, the self-cleaning control device of the air conditioner sets N in advance within the range smaller than the first preset threshold2Dividing points to obtain N2+1 subintervals.
Wherein N is2Is a positive integer greater than or equal to 1. Each subinterval is provided with a different frequency adjustment strategy around the frequency variation. And each frequency variation is greater than zero, and the value of the frequency variation is reduced along with the increase of the approaching degree of the upper limit value of the corresponding subinterval and the first preset threshold.
Specifically, in step 102, the self-cleaning control device of the air conditioner uses the sub-interval where the first humidity information is located as the second target sub-interval, and obtains the frequency variation corresponding to the sub-interval.
And adjusting the running frequency of the outdoor unit based on the frequency variation.
Specifically, the self-cleaning control device of the air conditioner packages the obtained frequency variation into an up-conversion control command, and sends the command to the outdoor unit.
And the outdoor unit receives and responds to the frequency increasing control instruction, controls the internal compressor and increases the operating frequency according to the numerical value indicated by the frequency variation on the basis of the current operating frequency.
The embodiment of the present invention does not specifically limit the implementation process of the frequency raising. Exemplarily, in N2Equal to 2 as an example, the range of intervals smaller than the first preset threshold may be divided into three sub-intervals, namely [0,30%), [30%, 35%) and [35%, 50%), where:
if the first humidity information is [0,30%), the corresponding frequency variation may be set to +10 hertz (Hz), that is, after the compressor receives the frequency-up control instruction, the frequency is increased by 10Hz based on the current operating frequency.
If the first humidity information is [30%, 35%), the corresponding frequency variation may be set to +5 hertz (Hz), that is, after the compressor receives the frequency-up control instruction, 5Hz is increased on the basis of the current operating frequency.
If the first humidity information is at [35%, 50%), the corresponding frequency variation may be set to 0 hertz (Hz), that is, the compressor keeps the current operating frequency unchanged after receiving the frequency-up control instruction.
According to the embodiment of the invention, the frequency variation is determined based on the subinterval where the first humidity information is located, so that the compressor can be used for increasing the operation frequency by combining the frequency variation corresponding to the subinterval. The operation frequency is quantitatively adjusted correspondingly according to the first humidity information, the refrigerating capacity is compensated correspondingly, the refrigerating temperature is reduced, the frosting stability is improved, and the self-cleaning effect is enhanced.
On the basis of any of the above embodiments, in a case that the first humidity information is smaller than a first preset threshold, controlling an electronic expansion valve of an outdoor unit to adjust an opening degree, and controlling the outdoor unit to adjust an operation frequency includes: and carrying out interval division on the humidity range smaller than the first preset threshold value to obtain at least two humidity subintervals.
And if the first humidity information is determined to be in a first humidity subinterval, acquiring an opening degree variation corresponding to the first humidity subinterval, so that the electronic expansion valve can adjust the opening degree according to the opening degree variation.
If the first humidity information is determined to be in a second humidity subinterval, acquiring an opening degree variation and a frequency variation corresponding to the second humidity subinterval, so that the electronic expansion valve can adjust the opening degree according to the opening degree variation, and the outdoor unit can adjust the operation frequency according to the frequency variation.
Specifically, in step 102, after determining that the first humidity information is smaller than the first preset threshold, the self-cleaning control device of the air conditioner uses the first preset threshold as the termination endpoint of the threshold interval, and sets N for the threshold interval3Dividing points to obtain N3+1 humidity subintervals.
Wherein N is3Is a positive integer greater than or equal to 1. Each humidity subinterval corresponds to a different adjustment strategy.
Embodiment of the invention is to N3The value of (A) is not particularly limited.
Exemplarily, N3May be 1. The threshold interval smaller than the first preset threshold is divided into two humidity subintervals, i.e. a first humidity subinterval and a second humidity subinterval, wherein:
the first humidity subinterval may be [0,35%), and if the first humidity information belongs to the first humidity subinterval, which indicates that the current indoor humidity is lower than the normal humidity level, the electronic expansion valve of the outdoor unit is only controlled to slightly reduce the valve opening degree, so as to compensate the cooling capacity, so that the actual outlet air temperature is slightly lower than the corresponding design value, and frosting is easier.
The second outlet air temperature interval may be [35%, 50%), and if the first humidity information belongs to the second humidity subinterval, which indicates that the current indoor humidity is far lower than the normal humidity level, the operation frequency of the compressor is further increased after the electronic expansion valve of the outdoor unit is controlled to reduce the valve opening to the maximum extent, so as to compensate the cooling capacity to a large extent, so that the actual outlet air temperature is greatly lower than the corresponding design value, and frosting is more likely to occur.
It may be noted that the sub-intervals demarcated for a humidity range less than the first preset threshold include, but are not limited to, a first humidity sub-interval and a second humidity sub-interval. The first humidity subinterval and the second humidity subinterval may be further divided, and a specific embodiment of the interval division is given as follows:
if the first humidity information is [0,30%), the corresponding frequency variation can be set to +10Hz, and the opening variation can be set to-50, i.e., after the outdoor unit receives the control instruction, the electronic expansion valve is controlled to reduce the opening of the valve to the maximum extent, and then the compressor is controlled to increase 10Hz on the basis of the current operating frequency.
If the first humidity information is [30%, 35%), the corresponding frequency variation may be set to +5Hz, and the opening variation may be set to-50, i.e., after the outdoor unit receives the control instruction, the electronic expansion valve is controlled to reduce the valve opening to the maximum extent, and then the compressor is controlled to increase 5Hz based on the current operating frequency.
If the first humidity information is [35%, 40%), the corresponding frequency variation may be set to 0, and the opening variation may be set to-50, that is, after the outdoor unit receives the control instruction, only the electronic expansion valve is controlled to reduce the valve opening to the maximum extent.
If the first humidity information is [40%, 45%), the corresponding frequency variation may be set to 0, and the opening variation may be set to-30, that is, after the outdoor unit receives the control instruction, only the electronic expansion valve is controlled to decrease the valve opening by the second largest degree.
If the first humidity information is [45%, 50%), the corresponding frequency variation may be set to 0, and the opening variation may be set to-20, that is, after the outdoor unit receives the control instruction, only the electronic expansion valve is controlled to reduce the valve opening to the minimum extent.
According to the embodiment of the invention, based on the fact that the first humidity information is larger than the first preset threshold value and in different humidity subintervals, the outdoor unit is decided to execute different adjustment strategies related to the operation frequency and the valve opening, so that the operation state of the outdoor unit is dynamically adjusted according to the indoor humidity, and the refrigeration quantity is correspondingly compensated under the combined action of the electronic expansion valve and the compressor, so that the refrigeration temperature is reduced, the frosting stability is improved, the self-cleaning effect is enhanced, and the effect of saving energy efficiency is also taken into consideration.
On the basis of any of the above embodiments, after controlling the electronic expansion valve of the outdoor unit to adjust the opening degree, and/or controlling the outdoor unit to adjust the operating frequency, the method further includes: and acquiring second humidity information after the preset time.
Wherein the second humidity information is outdoor humidity collected in an outdoor unit self-cleaning mode.
Specifically, after step 102, after determining that the outdoor unit continuously operates for the preset time period with the adjusted opening value and/or operation frequency, that is, the frosting stage of the indoor unit self-cleaning mode is already completed, when the defrosting stage is subsequently performed, the heating mode needs to be started, and since the heat exchange relationship is exchanged, the frosting stage of the indoor unit corresponds to the frosting stage of the outdoor unit self-cleaning mode, and at this time, second humidity information collected by the sensing module in the outdoor unit in the current working cycle is received.
Wherein the second humidity information, in units of%, represents a percentage of a ratio of an actual water vapor pressure in the outdoor air to a saturated water vapor pressure at the current air temperature.
Controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the second humidity information is smaller than a second preset threshold value;
the second preset threshold is a lower limit value of a preset outdoor humidity range.
It should be noted that the preset outdoor humidity range refers to a humidity range that a human body feels suitable indoors according to an industry standard or a user-defined standard.
The first preset threshold is a lower limit value of a preset outdoor humidity range set for the outdoor space.
Illustratively, the suitable humidity range outside the room (i.e., the preset outdoor humidity range) is typically above 50%, so the second preset threshold may be consistent with the first preset threshold, also set at 50%.
Specifically, the self-cleaning control device of the air conditioner compares the second humidity information with a second preset threshold value.
If the second humidity information is smaller than a second preset threshold value, it indicates that the current outdoor humidity is low, that is, the outdoor wet air is not easy to condense at the condenser temperature corresponding to the indoor heating temperature default in the outdoor unit self-cleaning mode, so that the outdoor frosting effect is poor, and then a control instruction is generated and distributed to the outdoor unit.
The outdoor unit receives and responds to the control instruction, and adjusts the operation state of related components in the outdoor unit so as to increase the heating capacity, further reduce the temperature of a condenser of the outdoor unit and strengthen the outdoor frosting process.
The embodiment of the invention does not specifically limit the relevant parts with changed operation states in the outdoor unit.
Alternatively, the component may be an electronic expansion valve, and the electronic expansion valve receives and responds to a control instruction to adjust the valve opening degree thereof, so as to correspondingly change the temperature of the condenser of the outdoor unit.
Wherein, the smaller the valve opening, the lower the condenser temperature, and the better the outdoor frosting effect. On the contrary, the larger the opening of the valve is, the temperature of the condenser rises along with the opening of the valve, and the frosting effect is relatively weakened.
Alternatively, the component may be a compressor, and the compressor receives and responds to the control command to adjust the operating frequency thereof, so as to cause the heating temperature of the indoor unit to change correspondingly.
Wherein, the higher the running frequency, the lower the condenser temperature corresponding to the heating temperature which is increased along with the running frequency, and the better the outdoor frosting effect. On the contrary, the lower the operation frequency is, the temperature of the condenser rises along with the operation frequency, and the frosting effect is relatively weakened.
If the second humidity information is larger than or equal to a second preset threshold value, it indicates that the current outdoor humidity is above a normal level, that is, the default heating mode operation in the indoor unit self-cleaning mode is maintained, and when the indoor unit generates heating capacity, frosting is performed at the corresponding condenser temperature.
It can be understood that, in the heating mode of the air conditioner (i.e., the outdoor unit self-cleaning mode), the process of dynamically controlling the compressor and/or the electronic expansion valve is similar to the control mode of the air conditioner in the heating mode (i.e., the indoor unit self-cleaning mode), and is not repeated herein.
According to the embodiment of the invention, based on the outdoor second humidity information, when the heating capacity is decided to be changed, the opening degree of the electronic expansion valve is dynamically adjusted, and/or the running frequency of the outdoor unit is dynamically adjusted, so that the frosting environment is analyzed according to the outdoor humidity, and when the outdoor humidity is determined to be lower, the heating capacity is compensated through the compressor and/or the electronic expansion valve in the outdoor unit, so that the temperature on the condenser is reduced, the wet air is frosted on the condenser more easily, and the self-cleaning effect is enhanced.
On the basis of any of the above embodiments, controlling an electronic expansion valve of an outdoor unit to adjust an opening degree, and/or controlling the outdoor unit to adjust an operation frequency includes: and controlling the electronic expansion valve to adjust the opening degree to the minimum opening degree under the condition that the adjusted opening degree value is determined to be smaller than or equal to the rated minimum opening degree of the electronic expansion valve.
Specifically, the self-cleaning control device of the air conditioner compares the opening degree value after executing the opening degree variable quantity with the rated minimum opening degree of the electronic expansion valve:
and if the adjusted opening value is smaller than or equal to the rated minimum opening, taking the rated minimum opening as a target value to control the electronic expansion valve to increase the valve opening to the target value, and continuously operating at the minimum opening.
And if the adjusted opening value is larger than the rated minimum opening, directly controlling the electronic expansion valve to continuously operate according to the adjusted opening value.
And controlling the outdoor unit to adjust the operating frequency to the maximum operating frequency under the condition that the adjusted frequency value is determined to be greater than or equal to the rated maximum operating frequency of the outdoor unit.
Specifically, the self-cleaning control device of the air conditioner compares the operation frequency after executing the frequency variation with the rated maximum operation frequency of the compressor:
and if the adjusted operating frequency is greater than or equal to the rated maximum operating frequency, taking the rated maximum operating frequency as a target value to control the compressor to increase the operating frequency to the target value, and continuously operating at the maximum operating frequency.
And if the adjusted opening value is less than the rated maximum operation frequency, directly controlling the compressor to continuously operate according to the adjusted opening value.
According to the embodiment of the invention, when the opening of the adjusted electronic expansion valve reaches the rated minimum value or the adjusted operating frequency reaches the rated maximum value, corresponding compensation is executed according to the corresponding limit value under similar extreme conditions, so that the corresponding parts of the outdoor unit are prevented from being overloaded, and the safety problem caused by overhigh heat inside the shell of the outdoor unit is avoided.
Fig. 2 is a schematic structural view of a self-cleaning control device of an air conditioner according to the present invention. On the basis of any of the above embodiments, as shown in fig. 2, the self-cleaning control device of an air conditioner provided by the embodiment of the present invention includes: a first humidity acquisition module 210 and a first control module 220, wherein:
the first humidity obtaining module 210 is configured to obtain first humidity information.
The first control module 220 is configured to control an electronic expansion valve of the outdoor unit to adjust an opening degree and/or control the outdoor unit to adjust an operation frequency when the first humidity information is smaller than a first preset threshold.
The first humidity information is the indoor humidity collected in the indoor unit self-cleaning mode. The first predetermined threshold is normally a lower limit of a predetermined humidity range.
Specifically, the first humidity acquiring module 210 and the first control module 220 are electrically connected in sequence.
The first humidity obtaining module 210 receives first humidity information collected by a sensing module in the indoor unit in the current working cycle after determining that the air conditioner starts the self-cleaning mode of the indoor unit according to the operation information fed back by each component according to the activation instruction.
The first control module 220 compares the first humidity information with a first preset threshold value.
If the first humidity information is smaller than a first preset threshold value, the current indoor humidity is low, namely, under the default refrigerating temperature in the self-cleaning mode of the indoor unit, the wet air is not easy to condense, and the frosting effect is poor, a control instruction is generated and is distributed to the outdoor unit.
The outdoor unit receives and responds to the control instruction, and adjusts the running states of related components in the outdoor unit so as to increase the refrigerating capacity, further reduce the refrigerating temperature of the indoor unit and strengthen the frosting process.
Alternatively, the first control module 220 includes an opening degree change amount determination unit and an opening degree control unit, wherein:
and the opening variation determining unit is used for acquiring the opening variation corresponding to the first target subinterval according to the first target subinterval corresponding to the first humidity information.
And the opening control unit is used for adjusting the opening of the electronic expansion valve based on the opening variation.
And dividing the humidity interval smaller than the first preset threshold value to obtain the first target subinterval. The opening variation is smaller than zero.
Optionally, the first control module 220 includes a frequency variation determining unit and an operating frequency control unit, wherein:
and the frequency variation determining unit is used for acquiring the frequency variation corresponding to the second target subinterval according to the second target subinterval corresponding to the first humidity information.
And the operation frequency control unit is used for adjusting the operation frequency of the outdoor unit based on the frequency variation.
And the second target subinterval is obtained by dividing the humidity interval smaller than the first preset threshold. The frequency variation is greater than zero.
Optionally, the first control module 220 includes an interval dividing unit and a control unit, wherein:
and the interval division unit is used for carrying out interval division on the humidity range smaller than the first preset threshold value to obtain at least two humidity subintervals.
And the control unit is used for acquiring the opening degree variation corresponding to the first humidity subinterval if the first humidity information is determined to be in the first humidity subinterval, so that the electronic expansion valve can adjust the opening degree according to the opening degree variation.
And if the first humidity information is determined to be in a second humidity subinterval, acquiring an opening degree variation and a frequency variation corresponding to the second humidity subinterval, so that the electronic expansion valve can adjust the opening degree according to the opening degree variation, and the outdoor unit can adjust the operating frequency according to the frequency variation.
Optionally, the self-cleaning control device of the air conditioner further comprises a second humidity obtaining module and a second control module, wherein:
and the second humidity acquisition module is used for acquiring second humidity information after the preset time length.
And the second control module is used for controlling an electronic expansion valve of the outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the second humidity information is smaller than a second preset threshold value.
Wherein the second humidity information is outdoor humidity collected in an outdoor unit self-cleaning mode. The second preset threshold is a lower limit value of a preset outdoor humidity range.
Optionally, the first control module further includes an opening degree protection unit and a frequency protection unit, wherein:
and the opening degree protection unit is used for controlling the electronic expansion valve to adjust the opening degree to the minimum opening degree under the condition that the adjusted opening degree value is determined to be smaller than or equal to the rated minimum opening degree of the electronic expansion valve.
And the frequency protection unit is used for controlling the outdoor unit to adjust the running frequency to the maximum running frequency under the condition that the adjusted frequency value is determined to be greater than or equal to the rated maximum running frequency of the outdoor unit.
The self-cleaning control device of the air conditioner provided by the embodiment of the invention is used for executing the self-cleaning control method of the air conditioner provided by the invention, the implementation mode of the self-cleaning control device of the air conditioner is consistent with that of the self-cleaning control method of the air conditioner provided by the invention, and the same beneficial effects can be achieved, and the self-cleaning control device of the air conditioner provided by the embodiment of the invention is not described again.
According to the embodiment of the invention, on the basis of indoor first humidity information, when the refrigerating capacity is decided to be changed, the opening degree of the electronic expansion valve is dynamically adjusted and/or the running frequency of the outdoor unit is controlled to be dynamically adjusted, so that the frosting environment is analyzed according to the indoor humidity, and when the indoor humidity is determined to be lower, the refrigerating capacity is compensated through the compressor and/or the electronic expansion valve in the outdoor unit, so that the wet air is easier to frost at a lower temperature, and the self-cleaning effect is enhanced.
Fig. 3 is a schematic structural diagram of an air conditioner provided by the present invention. On the basis of any of the above embodiments, as shown in fig. 3, the air conditioner includes an indoor unit 310 and an outdoor unit 320, a control processor 311 and a first sensing module 312 are disposed in the indoor unit 210, and the first sensing module 312 is disposed on a surface of the indoor unit 310; the outer surface of the outdoor unit 320 is provided with a second sensing module 321; also included are a memory and a program or instructions stored on the memory and executable on the control processor 311, which when executed by the control processor 311 performs a self-cleaning control method of an air conditioner.
The first sensing module 312 is used for collecting the indoor humidity in the indoor unit self-cleaning mode. The second sensing module 321 is configured to sense the outdoor humidity collected in the outdoor unit self-cleaning mode.
Specifically, the air conditioner is composed of an indoor unit 310 body and an outdoor unit 320 body. The control processor 311 may be integrated on a control development board of the indoor unit 310 by a chip or a microprocessor, and the compensation control of the opening and the operating frequency in the indoor unit self-cleaning mode is realized through the communication connection between the control processor 311 and the outdoor unit 320 and the first sensing module 312. The compensation control of the opening degree and the operation frequency in the outdoor unit self-cleaning mode can also be realized through the communication connection between the control processor 311 and the outdoor unit 320 and the second sensing module 321, respectively.
A first sensing module 312 is further disposed on a surface of an outer casing of the indoor unit 310 to collect indoor humidity in a self-cleaning mode of the indoor unit in real time, and feed the indoor humidity back to the control processor 311 for logic determination of the opening degree and/or the operating frequency of the outdoor unit 320. The control processor 311 performs signal transmission with the outdoor unit 310 and the first sensing module 312 respectively by using wireless communication technology.
The number of the humidity sensors in the first sensing module 312 is not specifically limited in the embodiment of the present invention.
Alternatively, the first sensing module 312 may be a humidity sensor disposed in the middle of the housing, and the self-cleaning control device of the air conditioner uses the collected humidity data as the first humidity information.
Alternatively, the first sensing module 312 may be a plurality of humidity sensors disposed on the surface of the housing at regular intervals, and the self-cleaning control device of the air conditioner performs addition and averaging by using humidity data collected by the sensors to obtain the first humidity information.
Similarly, the second sensing module 321 is disposed on the inner wall of the outer casing of the outdoor unit 320 to collect the outdoor humidity in the outdoor unit self-cleaning mode in real time, and feed the outdoor humidity back to the control processor 311 to perform the logical judgment on the opening degree and/or the operating frequency of the outdoor unit 320.
The wireless communication technology includes, but is not limited to, WIFI wireless cellular signals (2G, 3G, 4G, and 5G), bluetooth, and Zigbee, and the embodiment of the present invention is not limited to this.
The air conditioner of the present invention further includes a memory and a program or instructions stored on the memory and executable on the control processor 311. The control processor 311 may call logic instructions in the memory to execute a self-cleaning control method of an air conditioner according to the present invention, where the method includes: acquiring first humidity information; controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the first humidity information is smaller than a first preset threshold value; the first humidity information is indoor humidity collected in an indoor unit self-cleaning mode; the first predetermined threshold is normally a lower limit of a predetermined humidity range.
According to the embodiment of the invention, based on the indoor first humidity information, when the refrigerating capacity is decided to be changed, the opening degree of the electronic expansion valve is dynamically adjusted, and/or the running frequency of the outdoor unit is dynamically adjusted, so that the frosting environment is analyzed according to the indoor humidity, and when the indoor humidity is determined to be lower, the refrigerating capacity is compensated through the compressor and/or the electronic expansion valve in the outdoor unit, so that the wet air is easier to frost at a lower temperature, and the self-cleaning effect is enhanced.
In another aspect, the present invention also provides a computer program product, the computer program product including a computer program, the computer program being stored on a non-transitory computer-readable storage medium, the computer program being capable of executing, when executed by a processor, the self-cleaning control method of an air conditioner provided by the above methods, the method including: acquiring first humidity information; controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the first humidity information is smaller than a first preset threshold value; the first humidity information is indoor humidity collected in an indoor unit self-cleaning mode; the first predetermined threshold is normally a lower limit of a predetermined humidity range.
In still another aspect, the present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program, which when executed by a processor, implements a self-cleaning control method of an air conditioner provided by the above methods, the method including: acquiring first humidity information; controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the first humidity information is smaller than a first preset threshold value; the first humidity information is indoor humidity collected in an indoor unit self-cleaning mode; the first preset threshold is a lower limit value of a preset indoor humidity range.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A self-cleaning control method of an air conditioner is characterized by comprising the following steps:
acquiring first humidity information;
controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the first humidity information is smaller than a first preset threshold value;
the first humidity information is indoor humidity collected in an indoor unit self-cleaning mode; the first preset threshold is a lower limit value of a preset indoor humidity range.
2. The self-cleaning control method of an air conditioner according to claim 1, wherein the controlling an electronic expansion valve of an outdoor unit to adjust an opening degree in case that the first humidity information is less than a first preset threshold value comprises:
acquiring an opening degree variation corresponding to a first target subinterval according to the first target subinterval corresponding to the first humidity information;
adjusting the opening degree of the electronic expansion valve based on the opening degree variation;
the first target subinterval is obtained by dividing a humidity interval smaller than the first preset threshold; the opening variation is smaller than zero.
3. The self-cleaning control method of an air conditioner as claimed in claim 1, wherein the controlling the outdoor unit to adjust an operation frequency in case that the first humidity information is less than a first preset threshold comprises:
acquiring a frequency variation corresponding to a second target subinterval according to the second target subinterval corresponding to the first humidity information;
adjusting the operation frequency of the outdoor unit based on the frequency variation;
the second target subinterval is obtained by dividing a humidity interval smaller than the first preset threshold; the frequency variation is greater than zero.
4. The self-cleaning control method of an air conditioner according to claim 1, wherein the controlling an electronic expansion valve of an outdoor unit to adjust an opening degree and the controlling the outdoor unit to adjust an operation frequency in case that the first humidity information is less than a first preset threshold comprises:
dividing the humidity range smaller than the first preset threshold value into at least two humidity subintervals;
if the first humidity information is determined to be in a first humidity subinterval, acquiring an opening degree variation corresponding to the first humidity subinterval, so that the electronic expansion valve can adjust the opening degree according to the opening degree variation;
and if the first humidity information is determined to be in a second humidity subinterval, acquiring an opening degree variation and a frequency variation corresponding to the second humidity subinterval, so that the electronic expansion valve can adjust the opening degree according to the opening degree variation, and the outdoor unit can adjust the operation frequency according to the frequency variation.
5. The self-cleaning control method of an air conditioner as claimed in claim 1, wherein after controlling the electronic expansion valve of the outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the operation frequency, further comprising:
after the preset time, acquiring second humidity information;
controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the second humidity information is smaller than a second preset threshold value;
the second humidity information is outdoor humidity acquired in an outdoor unit self-cleaning mode; the second preset threshold is a lower limit value of a preset outdoor humidity range.
6. The self-cleaning control method of an air conditioner according to claims 1-5, wherein the controlling the electronic expansion valve of the outdoor unit to adjust the opening degree, and/or controlling the outdoor unit to adjust the operation frequency comprises:
under the condition that the adjusted opening value is determined to be smaller than or equal to the rated minimum opening of the electronic expansion valve, controlling the electronic expansion valve to adjust the opening to the minimum opening;
and controlling the outdoor unit to adjust the operating frequency to the maximum operating frequency under the condition that the adjusted frequency value is determined to be greater than or equal to the rated maximum operating frequency of the outdoor unit.
7. A self-cleaning control apparatus of an air conditioner, comprising:
the first humidity acquisition module is used for acquiring first humidity information;
the first control module is used for controlling an electronic expansion valve of an outdoor unit to adjust the opening degree and/or controlling the outdoor unit to adjust the running frequency under the condition that the first humidity information is smaller than a first preset threshold value;
the first humidity information is indoor humidity collected in an indoor unit self-cleaning mode; the first preset threshold is a lower limit value of a preset indoor humidity range.
8. An air conditioner comprises an indoor unit and an outdoor unit, and is characterized in that a control processor and a first sensing module are arranged in the indoor unit, and the first sensing module is arranged on the surface of the indoor unit; the outer surface of the outdoor unit is provided with a second sensing module; further comprising a memory and a program or instructions stored on the memory and executable on the control processor, the program or instructions, when executed by the control processor, performing a self-cleaning control method of the air conditioner according to any one of claims 1 to 6;
the first sensing module is used for collecting indoor humidity in an indoor unit self-cleaning mode; the second sensing module is used for collecting the outdoor humidity in the outdoor unit self-cleaning mode.
9. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements a self-cleaning control method of an air conditioner according to any one of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements a self-cleaning control method of an air conditioner according to any one of claims 1 to 6.
CN202210753879.1A 2022-06-28 2022-06-28 Self-cleaning control method and device of air conditioner and air conditioner Pending CN115264839A (en)

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