CN116412516A - Self-cleaning mode protection method and device of air conditioner and air conditioner - Google Patents
Self-cleaning mode protection method and device of air conditioner and air conditioner Download PDFInfo
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- 238000004140 cleaning Methods 0.000 title claims abstract description 167
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000010257 thawing Methods 0.000 claims description 20
- 238000007710 freezing Methods 0.000 claims description 14
- 230000009467 reduction Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 14
- 230000008569 process Effects 0.000 description 10
- 230000002035 prolonged effect Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 108010053481 Antifreeze Proteins Proteins 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F24F11/70—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
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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
- F24F11/41—Defrosting; Preventing freezing
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- 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)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a self-cleaning mode protection method and device of an air conditioner and the air conditioner. The self-cleaning mode protection method comprises the following steps: step S1, receiving an instruction of the air conditioner for entering a self-cleaning mode, and controlling the air conditioner to enter the self-cleaning mode; step S2, judging the current operation stage of the air conditioner in a self-cleaning mode, and selecting and acquiring the indoor coil temperature of the indoor heat exchanger or the outdoor coil temperature of the outdoor heat exchanger according to the current operation stage; and step S3, adjusting working parameters of the compressor according to the indoor coil temperature or the outdoor coil temperature and the current operation stage. The self-cleaning mode protection method and device and the air conditioner provided by the invention can realize the protection of the temperature of the coil pipe in the self-cleaning mode, avoid the problem of air conditioner faults caused by overhigh or overlow temperature of the coil pipe, ensure the self-cleaning effect of the air conditioner and prolong the service life of the air conditioner.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to a self-cleaning mode protection method and device of an air conditioner and the air conditioner.
Background
In the related art, the self-cleaning mode of the air conditioner is not provided with a program for protecting the temperature of the coil pipe of the indoor heat exchanger or the coil pipe of the outdoor heat exchanger, so that the protection of the air conditioner in the self-cleaning mode is not perfect, the condition that the temperature of the coil pipe is too high or too low easily occurs, and the extreme condition often causes the occurrence of faults of the indoor unit or the outdoor unit, thereby affecting the self-cleaning effect of the air conditioner and the follow-up normal refrigerating process and the normal heating process of the air conditioner.
Disclosure of Invention
The invention provides a self-cleaning mode protection method and device of an air conditioner and the air conditioner, which are used for solving the defects in the prior art and realizing the following technical effects: the self-cleaning air conditioner has the advantages that the protection of the temperature of the coil pipe in the self-cleaning mode is realized, the problem of air conditioner faults caused by overhigh or overlow temperature of the coil pipe is avoided, the self-cleaning effect of the air conditioner is ensured, and the service life of the air conditioner is prolonged.
According to an embodiment of the first aspect of the invention, a self-cleaning mode protection method of an air conditioner comprises the following steps:
step S1, receiving an instruction of the air conditioner for entering a self-cleaning mode, and controlling the air conditioner to enter the self-cleaning mode;
step S2, judging the current operation stage of the air conditioner in a self-cleaning mode, and selecting and acquiring the indoor coil temperature of the indoor heat exchanger or the outdoor coil temperature of the outdoor heat exchanger according to the current operation stage;
and step S3, adjusting working parameters of the compressor according to the indoor coil temperature or the outdoor coil temperature and the current operation stage.
According to one embodiment of the present invention, the step S2 specifically includes:
and determining that the air conditioner is in a frost condensation operation stage in a self-cleaning mode, and acquiring the temperature of the indoor coil.
According to one embodiment of the present invention, the step S3 specifically includes:
determining that the temperature of the indoor coil is lower than a first set temperature, and adjusting working frequency setting frequency-reducing logic of the compressor to reduce frequency;
and determining that the temperature of the indoor coil pipe is higher than a second set temperature, and adjusting the working frequency of the compressor to perform frequency raising according to a set frequency raising logic.
According to one embodiment of the present invention, the step S2 specifically includes:
and determining that the air conditioner is in a defrosting operation stage in a self-cleaning mode, and acquiring the temperature of the outdoor coil.
According to one embodiment of the present invention, the step S3 specifically includes:
determining that the temperature of the outdoor coil is lower than a third set temperature, and adjusting the working frequency of the compressor to perform frequency reduction according to a set frequency reduction logic;
and determining that the temperature of the outdoor coil is higher than a fourth set temperature, and adjusting the working frequency of the compressor to perform frequency raising according to a set frequency raising logic.
According to one embodiment of the invention, the set down logic comprises: controlling the working frequency of the compressor to reduce the frequency in a mode of reducing the first set frequency every a first set time length;
the set up-conversion logic includes: and controlling the working frequency of the compressor to increase the frequency in a mode of increasing the second set frequency every second set time length.
According to one embodiment of the present invention, after the step S1, the self-cleaning mode protection method of the air conditioner further includes:
controlling the air conditioner to remove the limit on the oil return frequency of the compressor;
and/or judging whether the air conditioner runs in an anti-freezing protection mode or an overload protection mode, if so, closing the anti-freezing protection mode or the overload protection mode.
According to one embodiment of the present invention, after the step S3, the self-cleaning mode protection method of the air conditioner further includes:
and determining that at least one of the indoor unit and the outdoor unit of the air conditioner fails, or receiving an instruction for ending the self-cleaning mode, and controlling the air conditioner to exit the self-cleaning mode.
According to an embodiment of the present invention, after the step of controlling the air conditioner to exit the self-cleaning mode, the self-cleaning mode protection method of the air conditioner further includes:
judging whether the air conditioner operates an anti-freezing protection mode, if so, controlling the air conditioner to close the anti-freezing protection mode and continuing for a first set period of time.
According to one embodiment of the present invention, after the step of controlling the air conditioner to exit the self-cleaning mode, the self-cleaning mode protection method of the air conditioner further includes:
after exiting the self-cleaning mode of the last operation, controlling the air conditioner at least for a preset time interval to enter the next self-cleaning mode.
According to a second aspect of the present invention, a self-cleaning mode protection device of an air conditioner includes:
the first control module is used for receiving an instruction of the air conditioner to enter a self-cleaning mode and controlling the air conditioner to enter the self-cleaning mode;
the second control module is used for judging the current operation stage of the air conditioner in the self-cleaning mode and selecting and acquiring the indoor coil temperature of the indoor heat exchanger or the outdoor coil temperature of the outdoor heat exchanger according to the current operation stage;
and the third control module is used for adjusting the working parameters of the compressor according to the indoor coil temperature or the outdoor coil temperature and the current operation stage.
An air conditioner according to an embodiment of a third aspect of the present invention includes:
an air conditioner body;
a controller for performing the self-cleaning mode protection method of an air conditioner according to an embodiment of the first aspect of the present invention, or the self-cleaning mode protection device of an air conditioner according to an embodiment of the second aspect of the present invention.
The invention provides a self-cleaning mode protection method of an air conditioner, which is characterized in that a coil temperature protection program is added when the air conditioner operates in a self-cleaning mode, different temperature parameters are obtained in different operation stages of the self-cleaning mode, and the working parameters of a compressor are adjusted based on the temperature parameters, so that the coil temperature (including the indoor coil temperature and the outdoor coil temperature) of the air conditioner can be stabilized in a safe range in different operation stages of the self-cleaning mode, the protection of the coil temperature in the self-cleaning mode is realized, the problem of air conditioner faults caused by overhigh or overlow coil temperature is avoided, the self-cleaning effect of the air conditioner is ensured, the service lives of an indoor heat exchanger and an outdoor heat exchanger are prolonged, and the service life of the air conditioner is prolonged.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of steps of a self-cleaning mode protection method of an air conditioner according to the present invention;
fig. 2 is a schematic structural view of a self-cleaning mode protection device of an air conditioner according to the present invention;
fig. 3 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making 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 apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The self-cleaning mode protection method and device of the air conditioner and the air conditioner are described below with reference to the accompanying drawings. Before the embodiments of the present invention are described in detail, the entire application scenario is described. The self-cleaning mode protection method, the self-cleaning mode protection device, the electronic equipment and the computer readable storage medium of the air conditioner can be applied to the local area of the air conditioner, cloud platforms in the field of the Internet, cloud platforms in the field of other kinds of Internet, or third party equipment. The third party device may include a mobile phone, a tablet computer, a notebook computer, a vehicle-mounted computer, and other intelligent terminals.
In the following, a self-cleaning mode protection method suitable for an air conditioner is only described as an example, and it should be understood that the pressure adjustment method according to the embodiments of the present invention may also be suitable for a cloud platform and a third party device.
As shown in fig. 1, a self-cleaning mode protection method of an air conditioner according to an embodiment of a first aspect of the present invention includes:
step S1, receiving an instruction of the air conditioner for entering a self-cleaning mode, and controlling the air conditioner to enter the self-cleaning mode;
step S2, judging the current operation stage of the air conditioner in the self-cleaning mode, and selecting and acquiring the indoor coil temperature of the indoor heat exchanger or the outdoor coil temperature of the outdoor heat exchanger according to the current operation stage;
and step S3, adjusting working parameters of the compressor according to the indoor coil temperature or the outdoor coil temperature and the current operation stage.
According to the self-cleaning mode protection method of the air conditioner, the specific working process is as follows: firstly, after the controller receives an instruction of the air conditioner to enter a self-cleaning mode, the controller controls the air conditioner to enter the self-cleaning mode so as to clean the indoor heat exchanger and the outdoor heat exchanger. In the process of the air conditioner running in the self-cleaning mode, the controller judges the running stage of the current air conditioner in the self-cleaning mode, when the air conditioner is in different running stages currently, the controller obtains different temperature parameters, and in the follow-up control, the working parameters of the compressor are adjusted based on the obtained temperature parameters.
Taking a defrosting stage and a frosting stage as an example for explanation, when the air conditioner is in the frosting stage, the controller obtains the coil temperature of the indoor heat exchanger (indoor coil temperature for short) and adjusts the working parameters of the compressor based on the specific size of the indoor coil temperature; when the air conditioner is in the defrosting stage, the controller acquires the coil temperature of the outdoor heat exchanger (the outdoor coil temperature for short) and adjusts the working parameters of the compressor based on the specific magnitude of the outdoor coil temperature.
Generally, a cleaning method of an air conditioner in the prior art mainly comprises two modes of manual cleaning and self-cleaning of the air conditioner, wherein the self-cleaning mode of the air conditioner is mainly divided into a frost condensation stage and a defrosting stage, wherein an indoor unit of a split air conditioner is taken as an example, in the frost condensation stage, the air conditioner operates in a refrigeration mode first, and the output of a refrigerant to an indoor heat exchanger is increased, so that moisture in the indoor air can be gradually condensed into frost or an ice layer on the outer surface of the heat exchanger, and the condensed frost layer can be combined with dust in the process, so that the dust is peeled from the outer surface of the heat exchanger; then, in the defrosting stage, the air conditioner operates in a heating mode, so that the frost layer condensed on the outer surface of the heat exchanger is melted, dust is collected into the water receiving disc along with melted water flow, and the aim of self-cleaning the indoor unit of the air conditioner can be achieved; similarly, when the outdoor unit of the split type air conditioner is cleaned, the self-cleaning operation is performed according to a flow opposite to that of the indoor unit, that is, the air conditioner is operated in a heating mode (temperature of the outdoor unit is lowered, frost is condensed) and then in a cooling mode (temperature of the outdoor unit is raised, frost is melted).
However, in the self-cleaning manner of the air conditioner in the prior art, a program for protecting the temperature of the coil pipe of the indoor heat exchanger or the coil pipe of the outdoor heat exchanger is not provided, so that the protection of the air conditioner in the self-cleaning mode is not perfect, the condition that the temperature of the coil pipe is too high or too low easily occurs, and the fault of the indoor unit or the outdoor unit is often caused by the extreme condition, so that the self-cleaning effect of the air conditioner is affected, and the subsequent normal refrigerating process and the normal heating process of the air conditioner are affected.
In order to solve the technical defects in the related art, the invention provides a self-cleaning mode protection method of an air conditioner, which is characterized in that a coil temperature protection program is added when the air conditioner operates in a self-cleaning mode, different temperature parameters are obtained in different operation stages of the self-cleaning mode, and the working parameters of a compressor are adjusted based on the temperature parameters, so that the coil temperature (including the indoor coil temperature and the outdoor coil temperature) of the air conditioner can be stabilized in a safe range in different operation stages of the self-cleaning mode, the protection of the coil temperature in the self-cleaning mode is realized, the problem of air conditioner faults caused by overhigh or overlow coil temperature is avoided, the self-cleaning effect of the air conditioner is ensured, the service lives of an indoor heat exchanger and an outdoor heat exchanger are prolonged, and the service life of the air conditioner is prolonged.
According to some embodiments of the invention, in step S1: for the instruction that the air conditioner enters the self-cleaning mode, which is received by the controller, the instruction may be an instruction input by a user from the outside, for example, the user sends an instruction for controlling the air conditioner to enter the self-cleaning mode to the controller by operating a button or a knob on a panel of the air conditioner; or, the instruction may be an instruction automatically issued to the controller by the system based on satisfaction of a preset determination condition, for example, when the system detects that the air conditioner satisfies the preset determination condition, the system issues an instruction to the controller to control the air conditioner to enter the self-cleaning mode.
In some embodiments, the preset determination condition may be a cumulative operation duration of the air conditioner, a coil temperature, or a degree of scaling of the coil. For example, after the system detects that the accumulated running time of the air conditioner reaches the set accumulated time threshold, the system issues an instruction for controlling the air conditioner to enter the self-cleaning mode to the controller. For another example, the method further includes, before step S1: controlling an air conditioner to operate according to preset reference parameters, and obtaining the current coil temperature of the heat exchanger; determining the scaling degree of a heat exchanger of the air conditioner according to a comparison result of the current coil temperature and a preset reference coil temperature; and judging whether the triggering condition of the self-cleaning mode is met or not based on the scaling degree.
According to some embodiments of the invention, step S2 specifically comprises:
and determining that the air conditioner is in a frost condensation operation stage in a self-cleaning mode, and acquiring the temperature of the indoor coil.
Further, in step S3 after the indoor coil temperature is obtained, the method specifically includes:
determining that the temperature of the indoor coil is lower than a first set temperature, and adjusting working frequency setting frequency-reducing logic of the compressor to reduce frequency;
and determining that the temperature of the indoor coil pipe is higher than a second set temperature, and adjusting the working frequency of the compressor to perform frequency raising according to a set frequency raising logic.
In this embodiment, when the air conditioner is in the frost operation stage, the outdoor heat exchanger heats, and the indoor heat exchanger cools to realize the frost process of the coil of the indoor heat exchanger.
In the frost stage, when the controller determines that the temperature of the indoor coil is too low (i.e. lower than the first set temperature), the controller controls the working frequency of the compressor to be reduced, so that the power of the compressor is reduced, the refrigerating capacity of the indoor heat exchanger is further reduced, the temperature of the indoor heat exchanger is enabled to rise to the normal frost temperature, and therefore the indoor heat exchanger is prevented from being failed due to the too low temperature, the normal frost process of the indoor heat exchanger is ensured, and the service life of the indoor heat exchanger is prolonged.
In the frost stage, when the controller determines that the temperature of the indoor coil pipe is too high (i.e. higher than the second set temperature), the controller controls the working frequency of the compressor to rise, so that the power of the compressor is improved, the refrigerating capacity of the indoor heat exchanger is increased, the temperature of the indoor heat exchanger can meet the frost requirement of the indoor heat exchanger, the frost effect of the indoor heat exchanger is prevented from being influenced due to the too high temperature, the self-cleaning effect of the indoor heat exchanger is prevented from being poor due to insufficient frost, and the self-cleaning effect of the indoor heat exchanger is improved.
In some embodiments, the first set temperature may be the lowest cooling temperature that the indoor heat exchanger can achieve in the normal cooling mode of the air conditioner, or the first set temperature may be a temperature preset in advance by a user or a temperature set by default by a system, and the specific size of the first set temperature is not limited in the present invention. In addition, the second set temperature may be a temperature preset by a user in advance or a temperature set by a default by the system, and the specific size of the second set temperature is not limited in the present invention.
In some embodiments, setting the down-conversion logic includes: and controlling the working frequency of the compressor to reduce the first set frequency every a first set time length. For example, the controller controls the working frequency of the compressor to be reduced by 1Hz every 10s, and of course, the specific size of the first set duration and the first set frequency is not limited in particular, and the first set duration and the first set frequency may take other sizes except the embodiment.
The set up boost logic includes: and controlling the working frequency of the compressor to increase the frequency in a mode of increasing the second set frequency every second set time length. For example, the controller controls the working frequency of the compressor to rise by 1Hz every 10s, and of course, the present invention does not limit the specific size of the second set duration and the second set frequency, and the second set duration and the second set frequency may take other sizes except the present embodiment.
In addition, the frequency-down setting logic and the frequency-up setting logic executed in the defrosting operation stage may be other frequency adjustment modes, for example, control the compressor to immediately decrease or increase a certain preset change frequency, or control the compressor to slowly decrease or increase to a certain target frequency, etc., which is not particularly limited herein.
According to some embodiments of the invention, step S2 specifically comprises: and determining that the air conditioner is in a defrosting operation stage in a self-cleaning mode, and acquiring the temperature of the outdoor coil.
Further, in step S3 after the outdoor coil temperature is obtained, specifically including:
determining that the temperature of the outdoor coil is lower than a third set temperature, and adjusting the working frequency of the compressor to carry out frequency reduction according to a set frequency reduction logic;
and determining that the temperature of the outdoor coil is higher than the fourth set temperature, and adjusting the working frequency of the compressor to perform frequency raising according to the set frequency raising logic.
In this embodiment, when the air conditioner is in the defrosting operation stage, the outdoor heat exchanger is cooled, and the indoor heat exchanger is heated to realize the defrosting process of the coil pipe of the indoor heat exchanger, so that dirt on the indoor heat exchanger is cleaned by using the defrosting process after defrosting, and self-cleaning is realized.
In the defrosting stage, when the controller determines that the temperature of the outdoor coil is too low (i.e. lower than the third set temperature), the controller controls the working frequency of the compressor to be reduced, so that the power of the compressor is reduced, on one hand, the refrigerating capacity of the outdoor heat exchanger is reduced, the temperature of the outdoor heat exchanger is enabled to rise back to the normal defrosting temperature, the outdoor heat exchanger is prevented from being failed due to the too low temperature, the service life of the outdoor heat exchanger is prolonged, on the other hand, the heating capacity of the indoor heat exchanger is reduced, the temperature of the indoor heat exchanger is enabled to be reduced to the normal defrosting temperature, the failure of the indoor heat exchanger due to the too high temperature is avoided, the service life of the indoor heat exchanger is prolonged, and the normal defrosting process of the indoor heat exchanger is ensured.
In the defrosting stage, when the controller determines that the temperature of the outdoor coil is too high (i.e. higher than the fourth set temperature), the controller controls the working frequency of the compressor to rise, so that the power of the compressor is improved, on one hand, the refrigerating capacity of the outdoor heat exchanger is increased, on the other hand, the heating capacity of the indoor heat exchanger is increased, the defrosting effect of the indoor heat exchanger is prevented from being influenced due to the fact that the temperature of the indoor heat exchanger is too low, the problem that the self-cleaning effect of the indoor heat exchanger is poor due to insufficient defrosting is avoided, and the self-cleaning effect of the indoor heat exchanger is improved.
In some embodiments, the third set temperature may be the lowest cooling temperature that the outdoor heat exchanger can achieve in the normal cooling mode of the air conditioner, or the third set temperature may be a temperature preset by a user in advance or a temperature set by a default by a system, and the specific size of the third set temperature is not limited in the present invention. In addition, the fourth set temperature may be a preset temperature or a default temperature of the system, and the specific size of the fourth set temperature is not limited in the present invention.
In some embodiments, setting the down-conversion logic includes: and controlling the working frequency of the compressor to reduce the frequency of the third setting every other third setting time. For example, the controller controls the working frequency of the compressor to be reduced by 1Hz every 10s, and of course, the specific size of the third set duration and the third set frequency is not limited in particular, and the third set duration and the third set frequency may take other sizes except the embodiment.
The set up boost logic includes: and controlling the working frequency of the compressor to increase the frequency in a mode of increasing the fourth set frequency every other fourth set time length. For example, the controller controls the working frequency of the compressor to rise by 1Hz every 10s, and of course, the present invention does not limit the specific size of the fourth set duration and the fourth set frequency, and the fourth set duration and the fourth set frequency may take other sizes except the present embodiment.
In addition, the frequency-down setting logic and the frequency-up setting logic executed in the defrosting operation stage may be other frequency adjustment modes, for example, control the compressor to immediately decrease or increase a certain preset change frequency, or control the compressor to slowly decrease or increase to a certain target frequency, etc., which is not particularly limited herein.
According to one embodiment of the present invention, after step S1, the self-cleaning mode protection method of an air conditioner further includes: controlling the air conditioner to remove the limit on the oil return frequency of the compressor; and/or judging whether the air conditioner runs in an anti-freezing protection mode or an overload protection mode, if so, closing the anti-freezing protection mode or the overload protection mode.
For example, before the air conditioner enters the self-cleaning mode, the system releases the limitation on the oil return frequency of the compressor, that is, the oil return frequency of the compressor is not particularly limited in the self-cleaning mode of the air conditioner; in addition, the system will shield the coil from the anti-freeze protection mode and the overload protection mode of the air conditioner and shut down the anti-freeze protection mode or the overload protection mode when the air conditioner is in the anti-freeze protection mode or the overload protection mode.
According to one embodiment of the present invention, after step S1, the self-cleaning mode protection method of an air conditioner further includes: after the air conditioner is determined to enter the self-cleaning mode, a cleaning signal in other modes is received, but the running time of the air conditioner in the current self-cleaning mode is not refreshed.
Further, in the method, the outer ring temperature determination is determined only once when the self-cleaning mode is started, and the subsequent operation is not determined.
Further, during self-cleaning mode operation of the air conditioner, the system does not time the compressor run length and defrost interval associated with defrost.
According to some embodiments of the present invention, after the air conditioner enters the self-cleaning mode and operates for a period of time, the air conditioner exits the self-cleaning mode, and the reason for exiting the self-cleaning mode at this time includes various kinds. For example, the air conditioner fails, so that the system forcedly exits the self-cleaning mode; for another example, when the self-cleaning of the air conditioner is detected to be completed, the system exits the self-cleaning mode; for another example, the system receives an external command to control the air conditioner to exit the self-cleaning mode, and the air conditioner exits the self-cleaning mode.
In one embodiment of the present invention, the self-cleaning mode protection method of an air conditioner further includes:
and determining that at least one of the indoor unit and the outdoor unit of the air conditioner fails, or receiving an instruction for ending the self-cleaning mode, and controlling the air conditioner to exit the self-cleaning mode.
In still another embodiment of the present invention, the self-cleaning mode protection method of an air conditioner further includes:
and after the air conditioner is determined to be self-cleaned, controlling the air conditioner to exit the self-cleaning mode.
The system can judge whether the air conditioner finishes self-cleaning by detecting whether the self-cleaning mode operation time of the air conditioner reaches the set operation time or not, or can judge whether the air conditioner finishes self-cleaning by detecting the scale degree on the coil of the indoor heat exchanger, for example, when the system detects that the scale degree on the coil of the indoor heat exchanger is lower than the lowest set standard, the air conditioner is determined to finish self-cleaning, and the air conditioner is controlled to exit the self-cleaning mode at the moment; and when the system detects that the structural degree of the indoor heat exchanger coil is higher than the lowest set standard, determining that the air conditioner does not complete self-cleaning, and continuously executing the self-cleaning mode by the air conditioner.
According to an embodiment of the present invention, after the step of controlling the air conditioner to exit the self-cleaning mode, the self-cleaning mode protection method of the air conditioner further includes:
judging whether the air conditioner operates the anti-freezing protection mode, if so, controlling the air conditioner to close the anti-freezing protection mode and continuing the first set time.
That is, the anti-freezing protection is not judged (the anti-freezing protection mode is not entered) within the first set time after the air conditioner exits from the self-cleaning mode, wherein the first set time can be 30s, and of course, the invention does not limit the first set time in a special way, and the first set time can be set to other time values according to specific requirements.
According to an embodiment of the present invention, after the step of controlling the air conditioner to exit the self-cleaning mode, the self-cleaning mode protection method of the air conditioner further includes:
after exiting the self-cleaning mode of the last operation, controlling the air conditioner at least for a preset time interval to enter the next self-cleaning mode.
Therefore, by controlling the interval time of the two self-cleaning operations to be more than the preset time, the influence of cold or heat generated after the last self-cleaning operation on the next self-cleaning operation can be avoided, and the adverse effect of the last self-cleaning operation on the next self-cleaning operation is reduced or even eliminated.
For example, the preset duration of the interval may be 5 minutes, and of course, the preset duration of the interval is not limited in particular, and may be set to other duration values according to specific requirements.
According to some embodiments of the invention, the self-cleaning mode is not locked when the system detects a compressor discharge failure, and still operates normally.
According to some embodiments of the present invention, when the system detects a failure of the outdoor unit, the failure does not propagate to the indoor unit, that is, the indoor unit operates normally, and at this time, the operation duration of the self-cleaning mode continues to be accumulated and not cleared during the shutdown of the outdoor unit.
According to some embodiments of the present invention, in the self-cleaning mode, the compressor of the air conditioner has high load protection, i.e., the compressor is automatically turned off when the load is too high, and the outdoor fan in the outdoor unit is not turned off.
The self-cleaning mode protection device of the air conditioner provided by the invention is described below, and the self-cleaning mode protection device of the air conditioner described below and the self-cleaning mode protection method of the air conditioner described above can be correspondingly referred to each other.
As shown in fig. 2, a self-cleaning mode protection device of an air conditioner according to a second aspect of the present invention includes:
the first control module 110 is configured to receive an instruction for the air conditioner to enter a self-cleaning mode, and control the air conditioner to enter the self-cleaning mode;
the second control module 120 is configured to determine a current operation stage of the air conditioner in the self-cleaning mode, and select to obtain an indoor coil temperature of the indoor heat exchanger or an outdoor coil temperature of the outdoor heat exchanger according to the current operation stage;
the third control module 130 is used for adjusting the working parameters of the compressor according to the indoor coil temperature or the outdoor coil temperature and according to the current operation stage.
According to the air conditioner, the air conditioner comprises an air conditioner body and further comprises a controller or a self-cleaning mode protection device of the air conditioner. The controller is used for executing the self-cleaning mode protection method of the air conditioner.
Fig. 3 illustrates a physical schematic diagram of an electronic device, as shown in fig. 3, where the electronic device may include: processor 810, communication interface (Communications Interface) 820, memory 830, and communication bus 840, wherein processor 810, communication interface 820, memory 830 accomplish communication with each other through communication bus 840. The processor 810 may invoke logic instructions in the memory 830 to perform the self-cleaning mode protection method of the air conditioner described above.
Further, the logic instructions in the memory 830 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of performing the self-cleaning mode protection method of an air conditioner as described above.
In yet 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, is implemented to perform the self-cleaning mode protection method of an air conditioner described above.
The apparatus embodiments described above are merely illustrative, wherein elements illustrated as separate elements may or may not be physically separate, and elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on such understanding, the foregoing technical solutions may be embodied essentially or in part in the form of a software product, which may be stored in a computer-readable storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the various embodiments or methods of some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (12)
1. A self-cleaning mode protection method of an air conditioner, comprising:
step S1, receiving an instruction of the air conditioner for entering a self-cleaning mode, and controlling the air conditioner to enter the self-cleaning mode;
step S2, judging the current operation stage of the air conditioner in a self-cleaning mode, and selecting and acquiring the indoor coil temperature of the indoor heat exchanger or the outdoor coil temperature of the outdoor heat exchanger according to the current operation stage;
and step S3, adjusting working parameters of the compressor according to the indoor coil temperature or the outdoor coil temperature and the current operation stage.
2. The method for protecting the self-cleaning mode of the air conditioner according to claim 1, wherein the step S2 specifically comprises:
and determining that the air conditioner is in a frost condensation operation stage in a self-cleaning mode, and acquiring the temperature of the indoor coil.
3. The method for protecting the self-cleaning mode of the air conditioner according to claim 2, wherein the step S3 specifically comprises:
determining that the temperature of the indoor coil is lower than a first set temperature, and adjusting working frequency setting frequency-reducing logic of the compressor to reduce frequency;
and determining that the temperature of the indoor coil pipe is higher than a second set temperature, and adjusting the working frequency of the compressor to perform frequency raising according to a set frequency raising logic.
4. The method for protecting the self-cleaning mode of the air conditioner according to claim 1, wherein the step S2 specifically comprises:
and determining that the air conditioner is in a defrosting operation stage in a self-cleaning mode, and acquiring the temperature of the outdoor coil.
5. The method according to claim 4, wherein the step S3 specifically includes:
determining that the temperature of the outdoor coil is lower than a third set temperature, and adjusting the working frequency of the compressor to perform frequency reduction according to a set frequency reduction logic;
and determining that the temperature of the outdoor coil is higher than a fourth set temperature, and adjusting the working frequency of the compressor to perform frequency raising according to a set frequency raising logic.
6. The method of claim 3 or 5, wherein the setting down-conversion logic comprises: controlling the working frequency of the compressor to reduce the frequency in a mode of reducing the first set frequency every a first set time length;
the set up-conversion logic includes: and controlling the working frequency of the compressor to increase the frequency in a mode of increasing the second set frequency every second set time length.
7. The method according to any one of claims 1 to 5, characterized by further comprising, after said step S1:
controlling the air conditioner to remove the limit on the oil return frequency of the compressor;
and/or judging whether the air conditioner runs in an anti-freezing protection mode or an overload protection mode, if so, closing the anti-freezing protection mode or the overload protection mode.
8. The self-cleaning mode protection method of an air conditioner according to any one of claims 1 to 5, further comprising, after said step S3:
and determining that at least one of the indoor unit and the outdoor unit of the air conditioner fails, or receiving an instruction for ending the self-cleaning mode, and controlling the air conditioner to exit the self-cleaning mode.
9. The method of protecting a self-cleaning mode of an air conditioner according to claim 8, further comprising, after the step of controlling the air conditioner to exit the self-cleaning mode:
judging whether the air conditioner operates an anti-freezing protection mode, if so, controlling the air conditioner to close the anti-freezing protection mode and continuing for a first set period of time.
10. The method of claim 8, further comprising, after the step of controlling the air conditioner to exit the self-cleaning mode:
after exiting the self-cleaning mode of the last operation, controlling the air conditioner at least for a preset time interval to enter the next self-cleaning mode.
11. A self-cleaning mode protection device of an air conditioner, comprising:
the first control module is used for receiving an instruction of the air conditioner to enter a self-cleaning mode and controlling the air conditioner to enter the self-cleaning mode;
the second control module is used for judging the current operation stage of the air conditioner in the self-cleaning mode and selecting and acquiring the indoor coil temperature of the indoor heat exchanger or the outdoor coil temperature of the outdoor heat exchanger according to the current operation stage;
and the third control module is used for adjusting the working parameters of the compressor according to the indoor coil temperature or the outdoor coil temperature and the current operation stage.
12. An air conditioner, comprising:
an air conditioner body;
a controller for performing the self-cleaning mode protection method of an air conditioner according to any one of claims 1 to 10, or the self-cleaning mode protection device of an air conditioner according to claim 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211485841.7A CN116412516A (en) | 2022-11-24 | 2022-11-24 | Self-cleaning mode protection method and device of air conditioner and air conditioner |
| PCT/CN2023/100213 WO2024108984A1 (en) | 2022-11-24 | 2023-06-14 | Protection method and apparatus for air conditioner in self-cleaning mode, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211485841.7A CN116412516A (en) | 2022-11-24 | 2022-11-24 | Self-cleaning mode protection method and device of air conditioner and air conditioner |
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| CN116412516A true CN116412516A (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211485841.7A Pending CN116412516A (en) | 2022-11-24 | 2022-11-24 | Self-cleaning mode protection method and device of air conditioner and air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116412516A (en) |
| WO (1) | WO2024108984A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4884414A (en) * | 1987-08-26 | 1989-12-05 | Paragon Electric Company, Inc. | Adaptive defrost system |
| CN111854045B (en) * | 2020-07-24 | 2021-12-31 | 广东美的暖通设备有限公司 | Self-cleaning method and device of air conditioner, air conditioner and electronic equipment |
| CN113357789B (en) * | 2021-05-20 | 2022-10-28 | 青岛海尔空调器有限总公司 | Control method and device for self-cleaning of air conditioner and air conditioner |
| CN113405221A (en) * | 2021-06-24 | 2021-09-17 | 海信（山东）空调有限公司 | Air conditioner self-cleaning control method and device, storage medium and air conditioner |
| CN114216214B (en) * | 2021-12-22 | 2023-05-12 | 宁波奥克斯电气股份有限公司 | Self-cleaning control method and device and air conditioner |
| CN115560457A (en) * | 2022-10-31 | 2023-01-03 | 青岛海尔空调器有限总公司 | Control method and control device of air conditioner and air conditioner |
-
2022
- 2022-11-24 CN CN202211485841.7A patent/CN116412516A/en active Pending
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2023
- 2023-06-14 WO PCT/CN2023/100213 patent/WO2024108984A1/en unknown
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| WO2024108984A1 (en) | 2024-05-30 |
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