CN112984740B - Control method and device for self-cleaning of air conditioner and air conditioner - Google Patents
Control method and device for self-cleaning of air conditioner and air conditioner Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 abstract description 9
- 239000000428 dust Substances 0.000 description 37
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- 238000005057 refrigeration Methods 0.000 description 11
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- 230000005494 condensation Effects 0.000 description 5
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- 230000007613 environmental effect Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 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
- F24F11/62—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
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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
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
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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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- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of intelligent household appliances, and discloses a control method for self-cleaning of an air conditioner, which comprises the following steps: under the condition that the air conditioner stably operates, acquiring the air speed between a heat exchanger and a fan of the air conditioner; determining the starting time of the self-cleaning operation of the air conditioner according to the first proportional relation between the wind speed and the preset wind speed; and controlling the air conditioner to execute self-cleaning operation according to the starting time. Under the condition that the air conditioner stably operates, the starting time of the self-cleaning operation of the air conditioner is determined according to the first proportional relation between the air speed between the heat exchanger and the fan of the air conditioner and the preset air speed, the air conditioner is further controlled to execute the self-cleaning operation according to the starting time, the proper time for starting the self-cleaning of the air conditioner can be well determined, the good heating or refrigerating regulation of the air conditioner is guaranteed, and the use experience of a user is improved. The application also discloses a control device and an air conditioner for the air conditioner is automatically cleaned.
Description
Technical Field
The application relates to the technical field of intelligent household appliances, in particular to a control method and device for self-cleaning of an air conditioner and the air conditioner.
Background
During the heating or refrigerating operation process of the air conditioner, dust, large-particle impurities and the like mixed in the outside air can enter the air conditioner and attach to the surface of an air conditioner heat exchanger, so that the heat exchange between the heat exchanger and the outside air is directly influenced, and the air outlet quality is influenced. In order to ensure the heat exchange efficiency and the air outlet quality, the air conditioner heat exchanger needs to be cleaned regularly. At present, a user carries out self-cleaning operation on an air conditioner heat exchanger in a mode of manually starting a self-cleaning function of an air conditioner.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the interval time for a user to manually start the self-cleaning function of the air conditioner is too long, the dust of the heat exchanger is excessively accumulated, the heating or refrigerating effect of the air conditioner is weakened, and the health of people is easily influenced; and because the normal refrigeration or heating mode of the air conditioner can be disturbed by self-cleaning operation, the interval time for manually starting the self-cleaning function of the air conditioner by a user is too short, the normal refrigeration or heating regulation of the air conditioner is easily influenced, and the user experience is reduced. Therefore, how to determine the proper time for starting the self-cleaning of the air conditioner becomes a problem to be solved urgently.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a control method and device for self-cleaning of an air conditioner and the air conditioner, and aims to solve the problem that the proper time for starting the self-cleaning of the air conditioner cannot be well determined at present.
In some embodiments, a control method for air conditioner self-cleaning includes: under the condition that the air conditioner stably operates, obtaining the ambient temperature between a heat exchanger and a fan of the air conditioner; and controlling the air conditioner to execute self-cleaning operation according to the proportional relation between the ambient temperature and the preset temperature.
In some embodiments, the control device for self-cleaning of air conditioner comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the control method for self-cleaning of air conditioner when executing the program instructions.
In some embodiments, the air conditioner includes the aforementioned control device for self-cleaning of the air conditioner.
The control method and device for self-cleaning of the air conditioner and the air conditioner provided by the embodiment of the disclosure can achieve the following technical effects:
when a fan of the air conditioner rotates, if the heat exchanger does not accumulate dust, the airflow penetrating through the heat exchanger can well form circulation with an external environment, the air speed between the heat exchanger and the fan is relatively high, and when the heat exchanger accumulates more dust, the airflow penetrating through the heat exchanger cannot well form circulation with the external environment, and the air speed between the heat exchanger and the fan is relatively low.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic flowchart of a control method for self-cleaning of an air conditioner according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of another control method for self-cleaning of an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a control device for self-cleaning of an air conditioner according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified. In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B. The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
Referring to fig. 1, an embodiment of the present disclosure provides a control method for self-cleaning of an air conditioner, including the following steps:
and S101, acquiring the wind speed between a heat exchanger and a fan of the air conditioner under the condition that the air conditioner stably operates.
In practical application, when the dust accumulation degree of the heat exchanger is judged by utilizing the wind speed between the heat exchanger and the fan, the judgment is only carried out aiming at the wind speed obtained when the air conditioner stably operates, and the operation mode when the air conditioner stably operates can be a high-wind-gear refrigeration operation mode, a medium-wind-gear refrigeration operation mode or a low-wind-gear refrigeration operation mode. Since the wind speed between the heat exchanger and the fan is greatly influenced by the external environment when the air conditioner is in unstable operation (for example, the air conditioner is in a frequency release state), the wind speed between the heat exchanger and the fan cannot accurately reflect the dust accumulation degree of the heat exchanger at the moment.
Optionally, the heat exchanger comprises an indoor heat exchanger, and the fan comprises a cross-flow fan arranged in the indoor unit of the air conditioner; obtaining a wind speed between a heat exchanger and a fan of an air conditioner, comprising: obtaining a first wind speed of a first wind speed detection point between the indoor heat exchanger and the cross-flow fan; the first wind speed detection point is located in the middle of the cross-flow fan shell and is located in the middle between the cross-flow fan shell and the indoor heat exchanger; the first wind speed is determined to be a wind speed.
Considering that the wind speed at the air outlet of the cross-flow fan is easily influenced by the external environment, the wind speed between aluminum foils of the indoor heat exchanger cannot accurately reflect the integral dust accumulation degree of the indoor heat exchanger, the wind quantity at the casing of the cross-flow fan is small, the influence of the vortex of the cross-flow fan is small, and the wind speed is stable, so that the first wind speed detection point is arranged at the middle position of the casing of the cross-flow fan and the middle position between the casing of the cross-flow fan and the indoor heat exchanger, the detected wind speed is not easily influenced by the external environment, and the integral dust accumulation degree of the indoor heat exchanger can be more accurately reflected.
Optionally, the heat exchanger comprises an outdoor heat exchanger, and the fan comprises an axial flow fan arranged in the outdoor unit of the air conditioner; obtaining a wind speed between a heat exchanger and a fan of an air conditioner, comprising: obtaining a second wind speed of a second wind speed detection point between the outdoor heat exchanger and the axial flow fan; the second wind speed detection point is positioned on the surface of a fin of the outdoor heat exchanger; obtaining a third wind speed of a third wind speed detection point positioned between the outdoor heat exchanger and the axial flow fan; the third wind speed detection point is positioned at the rotating shaft of the axial flow fan; obtaining a fourth wind speed of a fourth wind speed detection point positioned between the outdoor heat exchanger and the axial flow fan; the fourth wind speed detection point is positioned in the middle between the surface of the fin of the outdoor heat exchanger and the rotating shaft of the axial flow fan; calculating to obtain the weighted wind speed of the second wind speed, the third wind speed and the fourth wind speed; and determining the weighted wind speed as the wind speed.
Because the wind speed between the outdoor heat exchanger of the air conditioner and the fan is greatly influenced by the external environment, a plurality of wind speed detection points are selected, and the wind speed between the outdoor heat exchanger and the axial flow fan is comprehensively determined through the wind speeds detected by the plurality of wind speed detection points. Considering that most dust accumulation points of the outdoor heat exchanger are accumulated at the fins, the air quantity at the rotating shaft of the axial flow fan is small, the influence of the vortex of the axial flow fan is small, and the air speed is stable, therefore, the three air speed detection points are respectively arranged at the surfaces of the fins of the outdoor heat exchanger, the rotating shaft of the axial flow fan and the middle position between the surfaces of the fins of the outdoor heat exchanger and the rotating shaft of the axial flow fan, so that the three air speed detection points are used for detecting and obtaining the weighted air speed, the weighted air speed is directly controlled by the dust accumulation degree of the outdoor heat exchanger, and the integral dust accumulation degree of the outdoor heat exchanger can be more accurately reflected.
Optionally, calculating a weighted wind speed for obtaining the second wind speed, the third wind speed and the fourth wind speed includes:
wherein, T is the weight wind speed,
is the second wind speed weight coefficient, T 2 In the case of the second wind speed,
is the third wind speed weight coefficient, T 3 In the case of a third wind speed, the wind speed,
is a fourth wind speed weight coefficient, T 4 Is the fourth wind speed.
In the practical application of the method, the material is,
and is
Fin surface and axial flow fan of outdoor heat exchangerThe wind speed at the middle position between the rotating shafts can accurately reflect the dust accumulation degree of the outdoor heat exchanger, the fluctuation range of the wind speed is relatively small, and the wind speed value is relatively stable; the air quantity at the rotating shaft of the axial flow fan is the minimum, the influence of the vortex of the axial flow fan is small, and the air speed value is the most stable; and the wind speed at the surface of the fins of the outdoor heat exchanger can reflect the dust accumulation degree of the outdoor heat exchanger. Therefore, the weighting coefficients of the second wind speed, the third wind speed and the fourth wind speed are set according to the above mode, and the calculated weighting wind speed can more accurately reflect the dust accumulation degree of the whole outdoor heat exchanger.
And S102, determining the starting time of the self-cleaning operation of the air conditioner according to the first proportional relation between the wind speed and the preset wind speed.
Optionally, determining the starting time of the self-cleaning operation of the air conditioner according to a first proportional relation between the wind speed and a preset wind speed includes: calculating a first ratio of the wind speed to a preset wind speed; under the condition that the first ratio is within a first preset wind speed ratio range, determining the starting time as the current moment; and under the condition that the first ratio is in a second preset wind speed ratio range, determining the starting time as the moment when the self-cleaning control instruction is received.
The preset wind speed may be a wind speed between the heat exchanger and the fan detected under the same stable operation condition after the heat exchanger of the air conditioner completes one self-cleaning, for example, a wind speed between the heat exchanger and the fan detected by the air conditioner in a high-wind-gear refrigeration operation mode, a medium-wind-gear refrigeration operation mode, or a low-wind-gear refrigeration operation mode. The first preset wind speed ratio range may be [0, 50% ], for example, 0, 20%, 30%, 40%, 50%, and the second preset wind speed ratio range may be (50%, 80% ], for example, 60%, 70%, 80%. when a first ratio of the wind speed between the heat exchanger and the fan to the preset wind speed is in the first preset wind speed ratio range, it indicates that there is an excessive accumulation of dust on the heat exchanger, the self-cleaning operation is immediately performed to avoid a large influence on the normal heat exchange of the air conditioner and the life health of the user, when the first ratio of the wind speed between the heat exchanger and the fan to the preset wind speed is in the second preset wind speed ratio range, it indicates that there is a dust accumulation on the heat exchanger (but there is no threat to the normal heat exchange of the air conditioner and the life health of the user), the self-cleaning prompt information is sent, and the self-cleaning operation is performed after the self-cleaning instruction sent by the user based on the self-cleaning prompt information is received, the air conditioner is prevented from disturbing normal refrigerating or heating operation of the air conditioner due to the execution of self-cleaning operation, so that the use experience of a user is improved.
Optionally, determining a starting time of the self-cleaning operation of the air conditioner according to a first proportional relation between the wind speed and a preset wind speed, further comprising: under the condition that the first ratio is in a second preset wind speed ratio range and a self-cleaning control instruction is not received within a preset time length, obtaining a time interval from the air conditioner to the completion of the last self-cleaning operation; and under the condition that the time interval is greater than the preset time interval, determining the starting time as the current moment.
When the first ratio of the wind speed between the heat exchanger and the fan to the preset wind speed is in the second preset wind speed ratio range, the phenomenon of dust accumulation on the heat exchanger is indicated, self-cleaning prompt information is sent, if a self-cleaning control instruction sent by a user is not received within a preset time period, when the time interval from the completion of the last self-cleaning operation of the air conditioner is greater than a preset time interval (for example, 10 days or 15 days), the fact that the air conditioner does not carry out the self-cleaning operation for a long time is indicated, and in order to avoid the fact that the long-term accumulation of dust on the surface of the heat exchanger has great influence on the normal heat exchange of the air conditioner and the life health of the user, the self-cleaning operation is immediately executed.
And S103, controlling the air conditioner to execute self-cleaning operation according to the starting time.
And after the starting time of the self-cleaning operation of the air conditioner is determined, controlling the air conditioner to execute the self-cleaning operation according to the starting time.
In some practical applications, an indicator light is arranged on a filter screen of the air conditioner and used for prompting the dust deposition condition of the heat exchanger. When the ratio of the wind speed between the heat exchanger and the fan to the preset wind speed is in a first preset wind speed ratio range, the indicator lamp flickers in red to prompt a user that the heat exchanger is seriously dusted; when the ratio of the wind speed between the heat exchanger and the fan to the preset wind speed is in a second preset wind speed ratio range, the indicator lamp flickers in yellow to prompt a user that dust is accumulated on the heat exchanger; otherwise, the indicator light is green and always on, and the user is prompted that no dust is accumulated in the heat exchanger. Thus, the dust deposition condition of the heat exchanger is better known to a user.
By adopting the control method for self-cleaning of the air conditioner provided by the embodiment of the disclosure, when the fan of the air conditioner rotates, if the heat exchanger is free from dust accumulation, the air flow passing through the heat exchanger can be well circulated with the external environment, the wind speed between the heat exchanger and the fan is relatively large, when the heat exchanger accumulates more dust, the airflow penetrating the heat exchanger can not form circulation with the external environment well, the wind speed between the heat exchanger and the fan is relatively small, therefore, under the condition of stable operation of the air conditioner, determining the starting time of the self-cleaning operation of the air conditioner according to a first proportional relation between the wind speed between a heat exchanger and a fan of the air conditioner and a preset wind speed, and then the air conditioner is controlled to execute self-cleaning operation according to the starting time, so that the proper time for starting the self-cleaning of the air conditioner can be well determined, the good heating or refrigerating regulation of the air conditioner is ensured, and the use experience of a user is improved.
In some embodiments, the control method for air conditioner self-cleaning further includes: under the condition that the air conditioner stably operates, obtaining the ambient temperature between the heat exchanger and the fan; determining an execution mode of self-cleaning operation of the air conditioner according to the first proportional relation and a second proportional relation between the ambient temperature and the preset temperature; and controlling the air conditioner to perform the self-cleaning operation according to the execution mode.
The preset temperature may be a temperature between the heat exchanger and the fan detected under the same stable operation condition after the heat exchanger of the air conditioner completes one self-cleaning, for example, a temperature between the heat exchanger and the fan detected by the air conditioner in a high-wind-gear cooling operation mode, a medium-wind-gear cooling operation mode, or a low-wind-gear cooling operation mode. When the fan of the air conditioner rotates, if the heat exchanger does not accumulate dust, the heat exchanger can exchange heat with an external environment well, the ambient temperature between the heat exchanger and the fan is relatively high, and when the heat exchanger accumulates more dust, the heat exchanger cannot exchange heat with the external environment well, and the ambient temperature between the heat exchanger and the fan is relatively low.
Optionally, determining an execution mode of the self-cleaning operation of the air conditioner according to the first proportional relation and the second proportional relation between the ambient temperature and the preset temperature includes: calculating a first ratio of the wind speed to a preset wind speed and a second ratio of the ambient temperature to a preset temperature; determining that the execution mode is strong self-cleaning operation under the condition that the first ratio is in a first preset wind speed ratio range or the second ratio is in a first preset temperature ratio range; and under the condition that the first ratio is in a second preset wind speed ratio range and the second ratio is in a second preset temperature ratio range, determining that the execution mode is the common self-cleaning operation.
The first preset temperature ratio range can be [0, 50% ], for example, 0, 20%, 30%, 40%, 50%, and the second preset temperature ratio range can be (50%, 80% ], for example, 60%, 70%, 80%, taking the self-cleaning of the indoor unit of the air conditioner as an example, the self-cleaning operation of the air conditioner is mainly divided into a frost condensation stage and a defrosting stage, wherein, in the frost condensation stage, the air conditioner operates in a cooling mode in the early stage of frost condensation, moisture in indoor air is condensed on the surface of a heat exchanger of the indoor unit in the form of water drops, the air conditioner condenses the water drops condensed on the surface of the cooling heat exchanger in the early stage into a frost layer by increasing the amount of water, the frost layer is combined with dust on the surface of the heat exchanger and is peeled off, then the defrosting stage is entered, the air conditioner operates in a heating mode, the temperature of a coil of the indoor heat exchanger is increased, the frost layer is melted, the dust is also collected in a water receiving tray along with the melted water flow, and finishing the self-cleaning operation. The strong self-cleaning operation is long through the frost condensation of the increase self-cleaning operation frost later stage (that is long is longer than the frost condensation of ordinary self-cleaning operation) for the frost layer that the drop of water that condenses on the heat exchanger surface formed combines with the dust on heat exchanger surface to a great extent, thereby can promote the self-cleaning effect better.
The method comprises the steps of integrating a first proportional relation between the wind speed between a heat exchanger and a fan and a preset wind speed and a second proportional relation between the environment temperature between the heat exchanger and the fan and the preset temperature, jointly determining an execution mode of the air-conditioning self-cleaning operation, indicating that dust deposition of the heat exchanger of the air conditioner is serious under the condition that a first ratio is in a first preset wind speed ratio range or a second ratio is in a first preset temperature ratio range, determining that the execution mode is strong self-cleaning operation, indicating that dust deposition exists in the heat exchanger of the air conditioner under the condition that the first ratio is in a second preset wind speed ratio range and the second ratio is in a second preset temperature ratio range, and determining that the execution mode is ordinary self-cleaning operation. Like this, when promoting the clean effect of heat exchanger, shortened air conditioner self-cleaning time, guarantee the normal air conditioning of air conditioner as far as possible, promoted user's use and experienced.
In some embodiments, the control method for self-cleaning of the air conditioner further includes determining a stable operation of the air conditioner as follows: controlling the air conditioner to operate according to a preset operation mode; after the air conditioner operates for a preset time according to a preset operation mode, detecting temperature fluctuation on the surface of the heat exchanger; and determining the stable operation of the air conditioner under the condition that the temperature fluctuation is smaller than a preset fluctuation threshold value.
The preset operation mode is an operation mode in which the air conditioner can stably operate, and in the operation mode, the ambient temperature between the heater and the fan is less influenced by the external environment, for example, the preset operation mode may be a high-wind-gear refrigeration operation mode, a medium-wind-gear refrigeration operation mode or a low-wind-gear refrigeration operation mode. The preset time period is a time period from the start of heating or cooling to the time when the ambient temperature reaches the target temperature in a general case, and may be, for example, 10min to 20min (minutes). And after the air conditioner operates for a preset time according to a preset operation mode, detecting the temperature fluctuation of the surface of the heat exchanger, and determining the stable operation of the air conditioner under the condition that the temperature fluctuation is smaller than a preset fluctuation threshold value. The preset fluctuation threshold may be set to a value in the range of [2 ℃ C., 5 ℃ C ], for example, 2 ℃ C. (centigrade), 3 ℃ C., 4 ℃ C., 5 ℃ C.
In some embodiments, the control method for air conditioner self-cleaning further includes: after the air conditioner is controlled to finish one-time self-cleaning operation, obtaining the ambient temperature change rate between the heat exchanger and the fan in a preset time period after the air conditioner is started to operate; and controlling whether the air conditioner executes the self-cleaning operation again or not according to the magnitude relation between the ambient temperature change rate and the preset temperature change rate.
Here, the preset temperature change rate may be an ambient temperature change rate between the heat exchanger and the fan within a preset time period (for example, 5 to 10min after starting) after the start operation of the air conditioner is detected when it is determined that no dust is accumulated in the heat exchanger in the early stage test process. In the preset time period after the air conditioner is started and operated, because the dust of the heat exchanger is accumulated to influence the heat exchange coefficient of the heat exchanger, the ambient temperature change rate between the heat exchanger and the fan when the dust is accumulated in the heat exchanger of the air conditioner is smaller than the ambient temperature change rate between the heat exchanger and the fan when the dust is not accumulated in the heat exchanger of the air conditioner. Therefore, whether the air conditioner executes the self-cleaning operation again is controlled according to the magnitude relation between the environmental temperature change rate and the preset temperature change rate, and incomplete cleaning of the self-cleaning operation is avoided.
Optionally, controlling whether the air conditioner performs the self-cleaning operation again according to a magnitude relation between the ambient temperature change rate and a preset temperature change rate, including: controlling the air conditioner to execute the self-cleaning operation again under the condition that the ambient temperature change rate is smaller than the preset temperature change rate; and controlling the air conditioner to finish the self-cleaning operation under the condition that the ambient temperature change rate is greater than or equal to the preset temperature change rate.
When the environmental temperature change rate is smaller than the preset temperature change rate, indicating that the dust accumulation phenomenon still exists in the heat exchanger, and controlling the air conditioner to execute self-cleaning operation again, wherein the self-cleaning operation is incomplete at this time; when the ambient temperature change rate is greater than or equal to the preset temperature change rate, the dust accumulation phenomenon of the heat exchanger is indicated to be temporarily absent, the self-cleaning operation is relatively thorough, and the air conditioner is controlled to finish the self-cleaning operation. Thus, the degree of cleaning of the air conditioner self-cleaning operation can be improved.
Referring to fig. 2, an embodiment of the present disclosure provides a control method for self-cleaning of an air conditioner, including the following steps:
s201: and controlling the air conditioner to operate according to a preset operation mode.
S202: and after the air conditioner operates for a preset time according to a preset operation mode, detecting the temperature fluctuation of the surface of the heat exchanger.
S203: and judging whether the temperature fluctuation is smaller than a preset fluctuation threshold value or not.
S204: and determining that the air conditioner is not stably operated under the condition that the temperature fluctuation is greater than or equal to a preset fluctuation threshold value.
S205: and determining the stable operation of the air conditioner under the condition that the temperature fluctuation is smaller than a preset fluctuation threshold value.
S206: and under the condition that the air conditioner stably operates, acquiring the air speed between a heat exchanger and a fan of the air conditioner.
S207: and determining the starting time of the self-cleaning operation of the air conditioner according to the first proportional relation between the wind speed and the preset wind speed.
S208: and controlling the air conditioner to execute self-cleaning operation according to the starting time.
S209: and after the air conditioner is controlled to complete one-time self-cleaning operation, obtaining the ambient temperature change rate between the heat exchanger and the fan in a preset time period after the air conditioner is started to operate.
S210: and judging whether the ambient temperature change rate is smaller than a preset temperature change rate.
S211: and controlling the air conditioner to perform the self-cleaning operation again under the condition that the ambient temperature change rate is less than the preset temperature change rate.
S212: and controlling the air conditioner to finish the self-cleaning operation under the condition that the ambient temperature change rate is greater than or equal to the preset temperature change rate.
In the embodiment of the disclosure, on one hand, under the condition of stable operation of the air conditioner, the air conditioner is controlled to execute self-cleaning operation according to the proportional relation between the air speed between the heat exchanger and the fan of the air conditioner and the preset air speed, so that the proper time for starting the self-cleaning of the air conditioner can be better determined, the overlong or overlong interval time for a user to manually start the self-cleaning function of the air conditioner is avoided, and the use experience of the user is improved; on the other hand, after the air conditioner completes one self-cleaning operation, whether the air conditioner executes the self-cleaning operation again is controlled according to the size relation between the environmental temperature change rate and the preset temperature change rate, so that incomplete cleaning of the self-cleaning operation is avoided, and the cleaning effect of self-cleaning of the air conditioner is improved.
The embodiment of the present disclosure shown in fig. 3 provides a control device for self-cleaning of an air conditioner, which includes a processor (processor)30 and a memory (memory)31, and may further include a Communication Interface (Communication Interface)32 and a bus 33. The processor 30, the communication interface 32 and the memory 31 may communicate with each other through a bus 33. Communication interface 32 may be used for information transfer. The processor 30 may call logic instructions in the memory 31 to perform the control method for air conditioner self-cleaning of the above-described embodiment.
In addition, the logic instructions in the memory 31 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 31 is a computer-readable storage medium and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 30 executes functional applications and data processing by executing program instructions/modules stored in the memory 31, that is, implements the control method for self-cleaning of an air conditioner in the above method embodiment.
The memory 31 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 31 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the control device for self-cleaning of the air conditioner.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described control method for air conditioner self-cleaning.
An embodiment of the present disclosure provides a computer program product including a computer program stored on a computer-readable storage medium, the computer program including program instructions that, when executed by a computer, cause the computer to perform the above-described control method for air conditioner self-cleaning.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description for example only and are not limiting upon the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses, and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be only one type of logical functional division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. 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 position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (9)
1. A control method for self-cleaning of an air conditioner is characterized by comprising the following steps:
under the condition that the air conditioner stably operates, acquiring the wind speed between a heat exchanger and a fan of the air conditioner;
determining the starting time of the self-cleaning operation of the air conditioner according to the first proportional relation between the wind speed and the preset wind speed;
controlling the air conditioner to execute self-cleaning operation according to the starting time;
the heat exchanger comprises an indoor heat exchanger and an outdoor heat exchanger, and the fan comprises a cross-flow fan arranged on an indoor unit of the air conditioner and an axial-flow fan arranged on an outdoor unit of the air conditioner;
the obtaining of the wind speed between the heat exchanger and the fan of the air conditioner comprises the following steps:
obtaining a first wind speed of a first wind speed detection point between an indoor heat exchanger and a cross-flow fan; the first wind speed detection point is located in the middle of the cross-flow fan shell and is located in the middle between the cross-flow fan shell and the indoor heat exchanger; determining a first wind speed as a wind speed; or
Obtaining a second wind speed of a second wind speed detection point between the outdoor heat exchanger and the axial flow fan; the second wind speed detection point is positioned on the surface of a fin of the outdoor heat exchanger; obtaining a third wind speed of a third wind speed detection point positioned between the outdoor heat exchanger and the axial flow fan; the third wind speed detection point is positioned at the rotating shaft of the axial flow fan; obtainObtaining a fourth wind speed of a fourth wind speed detection point positioned between the outdoor heat exchanger and the axial flow fan; the fourth wind speed detection point is positioned in the middle between the surface of the fin of the outdoor heat exchanger and the rotating shaft of the axial flow fan; calculating to obtain the weighted wind speeds of the second wind speed, the third wind speed and the fourth wind speed; determining the weighted wind speed as the wind speed; the calculating to obtain the weighted wind speeds of the second wind speed, the third wind speed and the fourth wind speed comprises: t = ∂ 2 ×T 2 +∂ 3 ×T 3 +∂ 4 ×T 4 (ii) a Wherein T is the weighted wind speed of ∂ 2 Is a second wind speed weight coefficient and is,T 2 at a second wind speed, ∂ 3 Is a third wind speed weight coefficient and is,T 3 at a third wind speed, ∂ 4 Is a fourth wind speed weight coefficient and is,T 4 a fourth wind speed;
the determining the starting time of the self-cleaning operation of the air conditioner according to the first proportional relation between the wind speed and the preset wind speed comprises the following steps: calculating a first ratio of the wind speed to the preset wind speed; under the condition that the first ratio is within a first preset wind speed ratio range, determining the starting time as the current moment; under the condition that the first ratio is within a second preset wind speed ratio range, determining the starting time as the moment when a self-cleaning control instruction is received; and the second preset wind speed ratio range is larger than the first preset wind speed ratio range.
2. The control method according to claim 1, wherein the determining the starting time of the self-cleaning operation of the air conditioner according to the first proportional relationship between the wind speed and a preset wind speed further comprises:
under the condition that the first ratio is in a second preset wind speed ratio range and a self-cleaning control instruction is not received within a preset time length, obtaining a time interval from the air conditioner to the completion of the last self-cleaning operation;
and determining the starting time as the current moment when the time interval is greater than a preset time interval.
3. The control method according to claim 1, characterized by further comprising:
under the condition that the air conditioner runs stably, obtaining the ambient temperature between the heat exchanger and the fan;
determining an execution mode of the self-cleaning operation of the air conditioner according to the first proportional relation and the second proportional relation between the ambient temperature and the preset temperature;
and controlling the air conditioner to execute self-cleaning operation according to the execution mode.
4. The control method according to claim 3, wherein the determining the execution mode of the air conditioner self-cleaning operation according to the first proportional relationship and the second proportional relationship between the ambient temperature and the preset temperature comprises:
calculating a first ratio of the wind speed to the preset wind speed and a second ratio of the ambient temperature to the preset temperature;
determining that the execution mode is strong self-cleaning operation under the condition that the first ratio is in a first preset wind speed ratio range or the second ratio is in a first preset temperature ratio range;
and under the condition that the first ratio is in a second preset wind speed ratio range and the second ratio is in a second preset temperature ratio range, determining that the execution mode is the common self-cleaning operation.
5. The control method according to claim 1, further comprising determining that the air conditioner is stably operated as follows:
controlling the air conditioner to operate according to a preset operation mode;
after the air conditioner operates for a preset time according to the preset operation mode, detecting the temperature fluctuation of the surface of the heat exchanger;
and determining that the air conditioner stably operates under the condition that the temperature fluctuation is smaller than a preset fluctuation threshold value.
6. The control method according to any one of claims 1 to 5, characterized by further comprising:
after the air conditioner is controlled to complete one-time self-cleaning operation, obtaining the ambient temperature change rate between the heat exchanger and the fan in a preset time period after the air conditioner is started to operate;
and controlling whether the air conditioner executes the self-cleaning operation again or not according to the magnitude relation between the ambient temperature change rate and the preset temperature change rate.
7. The control method according to claim 6, wherein the controlling whether the air conditioner performs the self-cleaning operation again according to the magnitude relation between the ambient temperature change rate and a preset temperature change rate comprises:
controlling the air conditioner to execute self-cleaning operation again under the condition that the ambient temperature change rate is smaller than the preset temperature change rate;
and controlling the air conditioner to finish the self-cleaning operation under the condition that the ambient temperature change rate is greater than or equal to the preset temperature change rate.
8. A control device for self-cleaning of air conditioners, comprising a processor and a memory storing program instructions, characterized in that the processor is configured to carry out the control method for self-cleaning of air conditioners according to any one of claims 1 to 7 when executing the program instructions.
9. An air conditioner, characterized by comprising the control device for self-cleaning of an air conditioner according to claim 8.
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| CN202110136533.2A CN112984740B (en) | 2021-02-01 | 2021-02-01 | Control method and device for self-cleaning of air conditioner and air conditioner |
| PCT/CN2021/111188 WO2022160649A1 (en) | 2021-02-01 | 2021-08-06 | Method and apparatus for controlling self-cleaning of air conditioner, and air conditioner |
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| CN113639405B (en) * | 2021-07-23 | 2023-05-26 | 青岛海尔空调电子有限公司 | Method and device for controlling air conditioner and intelligent air conditioner |
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| WO2022160649A1 (en) | 2022-08-04 |
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