CN115218410A - Control method for air conditioner and air conditioner - Google Patents
Control method for air conditioner and air conditioner Download PDFInfo
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- CN115218410A CN115218410A CN202210730216.8A CN202210730216A CN115218410A CN 115218410 A CN115218410 A CN 115218410A CN 202210730216 A CN202210730216 A CN 202210730216A CN 115218410 A CN115218410 A CN 115218410A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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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- 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)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioning equipment, in particular to a control method for an air conditioner and the air conditioner, and aims to solve the problems that the existing air conditioner is poor in dust removal effect when cleaning a heat exchanger and the use experience of a user is influenced. To this end, the outdoor unit of the air conditioner of the present invention includes a casing, a heat exchanger and a fan, and the control method of the present invention includes: when the heat exchanger needs to be deeply cleaned, the air conditioner is enabled to execute a frosting mode; when the set conditions are met, enabling the air conditioner to execute a defrosting mode; in the process of executing the defrosting mode by the air conditioner, the fan blows air towards the heat exchanger and the air outlet direction of the fan is periodically adjusted. Through such setting, the air conditioner makes dust and frost layer closely combine when frosting, when changing the frost, through blowing to the heat exchanger round trip, blows off the frost block on the heat exchanger, reduces the frost block and melts the dust of remaining on the heat exchanger after, improves the clean effect of heat exchanger, promotes user's use and experiences.
Description
Technical Field
The invention relates to the technical field of air-conditioning equipment, and particularly provides a control method for an air conditioner and the air conditioner.
Background
The outdoor unit of the air conditioner is placed outdoors for long time, so that more dust can be deposited on the heat exchanger under the influence of outdoor sand wind, and the heat exchange efficiency of the heat exchanger is influenced.
The existing method for cleaning the heat exchanger mainly comprises the steps of frosting and defrosting the heat exchanger, closely combining dust on the heat exchanger with a frost layer, and melting the frost layer to achieve the purpose of dust removal and cleaning.
Therefore, there is a need in the art for a new solution to the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the technical problems, namely, the problems that the existing air conditioner has poor dust removal effect when cleaning the heat exchanger and the use experience of a user is influenced are solved.
In a first aspect, the present invention provides a control method for an air conditioner having an outdoor unit including a casing, and a heat exchanger and a fan installed in the casing, the control method comprising: when the heat exchanger needs to be cleaned deeply, the air conditioner is enabled to execute a frosting mode; when the set conditions are met, enabling the air conditioner to execute a defrosting mode; and in the process of executing a defrosting mode by the air conditioner, the fan blows air towards the heat exchanger and the air outlet direction of the fan is periodically adjusted.
In a preferred technical solution of the above control method, the heat exchanger is deeply cleaned once every first preset time period T1, and the control method further includes: after the heat exchanger is deeply cleaned, slightly cleaning the heat exchanger once every second preset time T2, and blowing air towards the heat exchanger by the fan and periodically adjusting the air outlet direction of the fan when slightly cleaning the heat exchanger; the first preset time period T1 is greater than the second preset time period T2.
In a preferred embodiment of the above control method, the control method further includes: after the heat exchanger is subjected to deep cleaning and light cleaning, acquiring the concentration of particulate pollutants in the air; and selectively performing light cleaning on the heat exchanger in advance according to the concentration of the particulate pollutants.
In a preferred embodiment of the above control method, the step of "selectively performing mild cleaning on the heat exchanger in advance according to the concentration of the particulate contaminants" specifically includes: comparing the concentration of the particle pollutants with a preset concentration; and selectively performing light cleaning on the heat exchanger in advance according to the comparison result.
In a preferred embodiment of the above control method, the step of "selectively performing light cleaning on the heat exchanger in advance according to the comparison result" specifically includes: if the concentration of the particulate pollutants is greater than the preset concentration and the duration time that the concentration of the particulate pollutants is greater than the preset concentration reaches a first preset time but does not reach a second preset time, obtaining the operation time T0 of the air conditioner after the heat exchanger is deeply cleaned last time; and selectively performing light cleaning on the heat exchanger in advance according to the operation time length T0.
In a preferred technical solution of the above control method, the step of "selectively performing light cleaning on the heat exchanger in advance according to the operation time period T0" specifically includes: calculating a difference Δ T = T1-T0; comparing said difference Δ T with a preset value a; if DeltaT is more than A, performing light cleaning on the heat exchanger in advance; if Δ T ≦ A, the heat exchanger is not lightly cleaned in advance.
In a preferred embodiment of the above control method, the step of "selectively performing light cleaning on the heat exchanger in advance according to the comparison result" further includes: if the concentration of the particulate pollutants is greater than the preset concentration and the duration that the concentration of the particulate pollutants is greater than the preset concentration reaches the second preset time, the heat exchanger is cleaned slightly in advance.
In a preferred technical solution of the above control method, the step of "periodically adjusting the air-out direction of the fan" specifically includes: and alternately operating the fan to blow air towards one side of the heat exchanger and the fan to blow air towards the other side of the heat exchanger for a set time.
In a preferred technical solution of the above control method, the fan includes a first fan and a second fan, the first fan is located at one side of the heat exchanger, the second fan is located at the other side of the heat exchanger, and the step of causing the fan to blow air toward one side of the heat exchanger specifically includes: blowing air toward one side of the heat exchanger by the first fan and stopping the operation of the second fan; the step of "blowing the fan toward the other side of the heat exchanger" specifically includes: blowing air toward the other side of the heat exchanger by the second fan and stopping the operation of the first fan.
In a second aspect, the present invention provides an air conditioner comprising a controller configured to be able to perform the control method described above.
Under the condition of adopting the technical scheme, the control method comprises the following steps: when the heat exchanger needs to be deeply cleaned, the air conditioner is enabled to execute a frosting mode; when the set conditions are met, the air conditioner is enabled to execute a defrosting mode; in the process of executing the defrosting mode of the air conditioner, the fan blows air towards the heat exchanger and the air outlet direction of the fan is periodically adjusted. Through such setting, when the air conditioner when carrying out the mode of frosting, make dust and the frost layer on the heat exchanger combine closely, when the air conditioner when carrying out the mode of defrosting, through blowing round trip towards the heat exchanger to help blowing off the frost block on the heat exchanger, reduce the dust of remaining on the heat exchanger after the frost block melts, and then improve the clean effect of heat exchanger, promote user's use and experience.
Further, the heat exchanger is deeply cleaned once every a first preset time period T1, and the control method of the invention further comprises the following steps: after the heat exchanger is deeply cleaned, slightly cleaning the heat exchanger every other second preset time T2, and when the heat exchanger is slightly cleaned, blowing air towards the heat exchanger by a fan and periodically adjusting the air outlet direction of the fan; the first preset time period T1 is greater than the second preset time period T2. Through the arrangement, after the heat exchanger is deeply cleaned, the heat exchanger is periodically and lightly cleaned, so that dust and sundries accumulated on the heat exchanger can be blown off, on one hand, the heat exchanger is kept clean, and the influence on the heat exchange efficiency of the heat exchanger is avoided; on the other hand, the cleaning difficulty of the heat exchanger in deep cleaning at the next time is reduced, so that the cleaning effect of the heat exchanger is improved.
Still further, the control method of the present invention further includes: after the heat exchanger is subjected to deep cleaning and light cleaning, acquiring the concentration of particle pollutants in the air; according to the concentration of the particle pollutants, the heat exchanger is selectively cleaned lightly in advance. Through such setting, can be according to the concentration height of granule class pollutant in the air, selectively carry out slight cleanness to the heat exchanger in advance, prevent to influence the heat exchange efficiency of heat exchanger owing to can not in time remove dust when the dust is more in the air, avoid making dust pile up too much and influence the next slight cleanness or the degree of depth cleanness on the heat exchanger simultaneously, further promote user's use and experience.
Still further, the step of "selectively performing a light cleaning of the heat exchanger in advance according to the comparison result" specifically includes: if the concentration of the particle pollutants is greater than the preset concentration and the duration that the concentration of the particle pollutants is greater than the preset concentration reaches the first preset time but does not reach the second preset time, obtaining the operation time T0 of the air conditioner after the heat exchanger is deeply cleaned last time; according to the operating time period T0, the heat exchanger is selectively cleaned lightly in advance. Through the arrangement, if the concentration of the particle pollutants in the air is greater than the preset concentration, and the duration time that the concentration of the particle pollutants is greater than the preset concentration reaches the first set time but does not reach the second set time, the weather with wind and sand is proved to be not very serious, whether the heat exchanger needs to be slightly cleaned or not is determined according to the running time of the air conditioner after the heat exchanger is deeply cleaned last time, on one hand, if the time is closer to the time of the next deep cleaning, the heat exchanger does not need to be slightly cleaned in advance, and energy saving is facilitated; on the other hand, if the time from the next deep cleaning is still longer, the heat exchanger needs to be lightly cleaned in advance, so that the influence of the accumulated dust on the heat exchanger on the next light cleaning or deep cleaning is avoided.
Still further, the step of "selectively pre-cleaning the heat exchanger lightly according to the operating time period T0" specifically includes: calculating a difference Δ T = T1-T0; comparing said difference Δ T with a preset value a; if DeltaT is more than A, the heat exchanger is slightly cleaned in advance; if Δ T ≦ A, the heat exchanger is not lightly cleaned in advance. Through the arrangement, if delta T is larger than A, the difference between T1 and T0 is larger, namely the time for the next deep cleaning is longer, the heat exchanger needs to be slightly cleaned in advance, and the influence of excessive dust accumulated on the heat exchanger on the next light cleaning or deep cleaning is avoided; if delta T is less than or equal to A, the difference between T1 and T0 is not large, that is, the next deep cleaning can be performed quickly, and at the moment, the heat exchanger does not need to be slightly cleaned in advance, so that the energy is saved, and the use experience of a user is further improved.
Still further, the step of "selectively pre-cleaning the heat exchanger according to the comparison result" further comprises: and if the concentration of the particulate pollutants is greater than the preset concentration and the duration time that the concentration of the particulate pollutants is greater than the preset concentration reaches a second set time, slightly cleaning the heat exchanger in advance. Through such setting, if the concentration of granule class pollutant is greater than preset concentration and the concentration of granule class pollutant is greater than the duration that preset concentration reaches the second settlement time, then it is more serious to explain sand blown by the wind weather, no matter the length apart from the time of next degree of depth cleaning, all need slightly clean the heat exchanger this moment, prevent to influence the heat exchange efficiency of heat exchanger owing to can not remove dust in time when the dust is more in the air, avoid making dust pile up too much and influence next degree of depth cleaning or degree of depth cleaning on the heat exchanger simultaneously.
Still further, the step of "periodically adjusting the air-out direction of the fan" specifically includes: and alternately operating the fan to blow air towards one side of the heat exchanger and the fan to blow air towards the other side of the heat exchanger for a set time. Through the arrangement, the fan blows air towards one side of the heat exchanger for the set time, and then the fan blows air towards the other side of the heat exchanger for the set time, so that the air can be blown to the heat exchanger back and forth, and frost on the heat exchanger can be blown down conveniently.
Still further, the fan includes a first fan and a second fan, the first fan is located on one side of the heat exchanger, the second fan is located on the other side of the heat exchanger, and the "blowing toward one side of the heat exchanger by the fan" step specifically includes: blowing air towards one side of the heat exchanger by the first fan and stopping the second fan; the step of "blowing air toward the other side of the heat exchanger by the fan" specifically includes: the second fan blows air toward the other side of the heat exchanger and stops the first fan. Through the arrangement, on one hand, the first fan and the second fan are respectively arranged on two sides of the heat exchanger, so that the fans can blow air back and forth towards the heat exchanger conveniently; on the other hand, compare with setting up a fan, adjust faster, it is better to blow the effect, more helps blowing the frost cake on the heat exchanger off.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic view illustrating an outdoor unit of an air conditioner according to the present invention;
FIG. 2 is a flow chart of the control method of the present invention;
fig. 3 is a flow chart of an embodiment of the control method of the present invention.
List of reference numerals:
1. an outdoor unit; 10. a housing; 11. a heat exchanger; 12. a fan; 121. a first fan; 122. a second fan; 13. an electric motor.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms "inside", "outside", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an outdoor unit of an air conditioner according to the present invention.
As shown in fig. 1, an outdoor unit 1 of an air conditioner according to the present invention includes a casing 10, and a heat exchanger 11 and a fan 12 disposed in the casing 10, wherein the fan 12 includes a first fan 121 and a second fan 122, and the first fan 121 and the second fan 122 are respectively disposed at two sides of the heat exchanger 11.
Referring next to fig. 2, fig. 2 is a flow chart of the control method of the present invention.
As shown in fig. 2, the control method of the present invention includes the steps of:
s1100: when the heat exchanger 11 needs to be cleaned deeply, the air conditioner is enabled to execute a frosting mode;
s1200: when the set conditions are met, enabling the air conditioner to execute a defrosting mode;
s1300: in the process of the air conditioner performing the defrosting mode, the fan 12 is blown toward the heat exchanger 11 and the air outlet direction of the fan 12 is periodically adjusted.
Through such setting, when the air conditioner when carrying out the mode of frosting, make dust and the frost layer on the heat exchanger 11 combine closely, when the air conditioner when carrying out the mode of defrosting, through blowing to the heat exchanger 11 round trip to help blowing off the frost cake on the heat exchanger 11, reduce the dust that remains on the heat exchanger 11 after the frost cake melts, and then improve the clean effect of heat exchanger 11, promote user's use and experience.
It should be noted that, in practical applications, a person skilled in the art may set the setting condition to be satisfied when the time for the air conditioner to execute the frosting mode reaches the setting time, or may set the setting condition to be determined to be satisfied when the duration time for which the temperature of the heat exchanger 11 is lower than the setting temperature exceeds the setting time, and the like, and such adjustment and change of the specific setting mode of the setting condition are not departing from the principle and scope of the present invention and are all included in the protection scope of the present invention.
Preferably, the setting condition is satisfied when a time for the air conditioner to perform the frosting mode reaches a setting time, wherein a person skilled in the art can set a specific value of the setting time through experiments or experience.
It should be noted that, in practical applications, the fan 12 may be stopped when the defrosting operation satisfies the set condition, for example, the fan 12 is stopped when the defrosting operation is finished, or the fan 12 may be stopped again when the defrosting operation satisfies the set condition, for example, the fan 12 is stopped after the set time when the defrosting operation is finished, and the like, and such flexible adjustment and change are included in the protection scope of the present invention without departing from the principle and scope of the present invention.
Preferably, the control method of the present invention further comprises the steps of:
when the defrosting mode executed by the air conditioner satisfies the set condition, the operation of the fan 12 is stopped after the set time is re-operated.
Through such an arrangement, after defrosting is finished, the fan 12 blows air towards the heat exchanger 11 so as to blow away residual water drops on the heat exchanger 11, and influence on the heat exchange efficiency of the heat exchanger 11 is avoided.
Preferably, the control method of the present invention further comprises the steps of:
and after the deep cleaning is finished, enabling the air conditioner to execute a refrigeration mode.
With such an arrangement, when the air conditioner is operated in the cooling mode after the deep cleaning is finished, the temperature of the surface of the heat exchanger 11 is increased, so that the moisture on the surface of the heat exchanger 11 can be evaporated quickly, and the normal use of the heat exchanger 11 is prevented from being affected by the cleaning of the heat exchanger 11.
It should be noted that, in practical applications, a person skilled in the art may set a cleaning condition (for example, the thickness of the dust on the heat exchanger 11 is greater than a set thickness, etc.) to perform a deep cleaning on the heat exchanger 11 automatically at regular intervals, or may set a cleaning condition (for example, the thickness of the dust on the heat exchanger 11 is greater than the set thickness, etc.), and when the cleaning condition is satisfied, the adjustment and change of the specific starting manner of the deep cleaning are not departing from the principle and scope of the present invention, and should be included in the protection scope of the present invention.
It is preferably provided that the heat exchanger 11 is deeply cleaned every first preset time period T1.
Exemplarily, T1=29 days. That is, the heat exchanger 11 was deeply cleaned every 29 days.
Further preferably, the control method of the present invention further includes: after the heat exchanger 11 is deeply cleaned, slightly cleaning the heat exchanger 11 every second preset time period T2, and when the heat exchanger 11 is slightly cleaned, blowing air towards the heat exchanger 11 by the fan 12 and periodically adjusting the air outlet direction of the fan 12; the first preset time period T1 is greater than the second preset time period T2.
Through the arrangement, after the heat exchanger 11 is deeply cleaned, the heat exchanger 11 is periodically and lightly cleaned, so that dust and impurities accumulated on the heat exchanger 11 can be blown off, on one hand, the heat exchanger 11 is kept clean, and the influence on the heat exchange efficiency of the heat exchanger 11 is avoided; on the other hand, the difficulty of cleaning the heat exchanger 11 in the next deep cleaning is reduced, which contributes to an improvement in the cleaning effect of the heat exchanger 11.
Exemplarily, T1=29 days, T2=9 days.
For example, in 2022, month 5 and month 1, the air conditioner performs a deep cleaning of the heat exchanger 11, in 2022, month 5 and month 21, respectively, performs a light cleaning of the heat exchanger 11, and in 2022, month 5 and month 31, respectively, performs a deep cleaning of the heat exchanger 11 (no light cleaning is performed alone), that is, two light cleanings are performed between two adjacent deep cleanings.
It should be noted that, in practical applications, a person skilled in the art may set specific values of the first preset time period T1 and the second preset time period T2 through experiments or experience.
It should be further noted that, in practical applications, those skilled in the art may set the adjustment period of the air outlet direction of the fan 12 during light cleaning to be the same as the adjustment period of the air outlet direction of the fan 12 during deep cleaning, or may set the adjustment period of the air outlet direction of the fan 12 during light cleaning to be different from the adjustment period of the air outlet direction of the fan 12 during deep cleaning, and so on, and such flexible adjustment and change do not depart from the principle and scope of the present invention and are included in the protection scope of the present invention.
Preferably, the period of adjusting the air-out direction of fan 12 during light cleaning is set to be the same as the period of adjusting the air-out direction of fan 12 during deep cleaning.
It should be noted that, in practical applications, a person skilled in the art may set the air output of the first fan 121 and the air output of the second fan 122 to be the same, or may set the air output of the first fan 121 and the air output of the second fan 122 to be different, and so on, and such flexible adjustment and change do not depart from the principle and scope of the present invention, and should be included in the protection scope of the present invention.
Preferably, the air output of the first fan 121 and the air output of the second fan 122 are set to be the same.
It should be noted that, in practical applications, a person skilled in the art may set the air output of the fan 12 during light cleaning to be the same as the air output of the fan 12 during deep cleaning, or may set the air output during light cleaning to be different from the air output of the fan 12 during deep cleaning, etc., and such flexible adjustment and changes do not depart from the principle and scope of the present invention and are included in the protection scope of the present invention.
Preferably, the air output of the fan 12 at the time of light cleaning is set to be the same as the air output of the fan 12 at the time of deep cleaning.
It should be noted that, in practical applications, a person skilled in the art may set specific values of the air output of the fan 12 and the adjustment period of the air output according to experiments or experience.
Preferably, the step of "periodically adjusting the air outlet direction of the fan 12" specifically includes: the operation of alternately blowing the fan 12 toward one side of the heat exchanger 11 and blowing the fan 12 toward the other side of the heat exchanger 11 is performed for a set time.
With such an arrangement, the fan 12 is first blown to one side of the heat exchanger 11 for a set time, and then the fan 12 is blown to the other side of the heat exchanger 11 for a set time, so that the air can be blown back and forth to the heat exchanger 11, and the operation of the fan 12 can also generate a certain vibration to the heat exchanger 11, which is helpful for blowing off frost or dust on the heat exchanger 11.
Illustratively, the predetermined time is 1 minute.
The fan 12 is first blown toward one side of the heat exchanger 11 for 1 minute, then the fan 12 is blown toward the other side of the heat exchanger 11 for 1 minute, and then the fan 12 is blown toward one side of the heat exchanger for 1 minute until the deep cleaning is completed.
It should be noted that, in practical applications, the number of the fans 12 is not limited to two, for example, the number of the fans 12 may be set to one, and the air outlet direction of the fan 12 is periodically adjusted by the forward rotation and the reverse rotation of the motor of one fan 12, or the number of the fans 12 may be set to multiple, multiple fans 12 are respectively distributed on both sides of the heat exchanger 11, the air outlet direction of the fan 12 is periodically adjusted by periodically adjusting the operating state of the fans 12 on both sides of the heat exchanger 11, and so on, and such adjustment and change of the specific number of the fans 12 are included in the protection scope of the present invention without departing from the principle and scope of the present invention.
It should be noted that, when the fan 12 blows air to the heat exchanger 11, the air can pass through the heat exchanger 11 from one side of the heat exchanger 11 and blow to the other side of the heat exchanger 11.
Preferably, as shown in fig. 1, the fan 12 includes a first fan 121 and a second fan 122, the first fan 121 and the second fan 122 are respectively located at two sides of the heat exchanger 11, motors of the first fan 121 and the second fan 122 are respectively fixed on the heat exchanger 11 through motor brackets, and output shafts of the two motors are respectively in driving connection with the first fan 121 and the second fan 122.
It should be noted that, in practical applications, the first fan 121 and the second fan 122 are not limited to be separately controlled by two motors 13, for example, the control method of the present invention is also applicable to the case where the first fan 121 and the second fan 122 are controlled by one motor, and the like, and such flexible adjustment and change are included in the protection scope of the present invention without departing from the principle and scope of the present invention.
It should also be noted that, in practical applications, the first fan 121 and the second fan 122 are not limited to be disposed on two sides of the heat exchanger 11, for example, the first fan 121 and the second fan 122 may be disposed on the same side of the heat exchanger, the direction of the air blowing toward the heat exchanger 11 may be adjusted by rotating the motors of the first fan 121 and the second fan 122 forward and backward, and the like, and the flexible adjustment and change do not depart from the principle and scope of the present invention. It is of course preferable that the first fan 121 and the second fan 122 are respectively disposed at both sides of the heat exchanger 11.
Preferably, the step of "blowing the fan 12 toward one side of the heat exchanger 11" specifically includes: blowing air toward one side of the heat exchanger 11 by the first fan 121 and stopping the operation of the second fan 122;
the step of "blowing the fan 12 toward the other side of the heat exchanger 11" specifically includes: the second fan 122 is blown toward the other side of the heat exchanger 11 and the first fan 121 is stopped.
With such an arrangement, on the one hand, the first fan 121 and the second fan 122 are respectively disposed on both sides of the heat exchanger 11, thereby facilitating the fan 12 to blow air back and forth toward the heat exchanger 11; on the other hand, compared with the arrangement of one fan, the fan has the advantages of faster adjustment and better blowing effect, and is more conducive to blowing off frost blocks on the heat exchanger 11.
With continued reference to fig. 3, fig. 3 is a flow chart of an embodiment of the control method of the present invention.
Preferably, as shown in fig. 3, the control method of the present invention further includes the steps of:
s4000: after deep cleaning and light cleaning of the heat exchanger 11, acquiring the concentration of particulate pollutants in the air;
s5000: the heat exchanger 11 is selectively cleaned lightly in advance according to the concentration of the particulate contaminants.
Through such setting, can be according to the concentration height of granule class pollutant in the air, selectively carry out slight cleanness to heat exchanger 11 in advance, prevent to influence heat exchange efficiency of heat exchanger 11 owing to can not in time remove dust when the dust and sand are more in the air, avoid making dust pile up too much and influence next slight cleanness or deep cleaning simultaneously on heat exchanger 11, further promote user's use and experience.
Note that "light cleaning of the heat exchanger 11 in advance" means that light cleaning of the heat exchanger 11 is performed once in advance before the time point of light cleaning is reached.
It should be noted that, in practical applications, those skilled in the art may obtain local weather information through networking, obtain the concentration of the particulate pollutants in the air through a prompt of the weather information (such as data of PM2.5 or PM 10), or may also set a detection component of the particulate pollutants in the air on the outdoor unit 1 of the air conditioner to obtain the concentration of the particulate pollutants in the air, and so on, and such adjustment and change of the specific manner of obtaining the concentration of the particulate pollutants in the air do not depart from the principle and scope of the present invention, and all of them should be included in the protection scope of the present invention.
It should be noted that, in practical applications, a person skilled in the art may configure the particulate contamination detecting component as a particulate matter sensor, or may configure the particulate contamination detecting component as a PM2.5 or PM10 detector, etc., and such modifications and changes to the specific configuration of the particulate contamination detecting component without departing from the principle and scope of the present invention should be included in the protection scope of the present invention.
Preferably, the particulate contaminant detection means is provided as a particulate matter sensor (not shown in the figures).
Preferably, as shown in fig. 3, the step of "selectively performing the light cleaning on the heat exchanger 11 in advance according to the concentration of the particulate contaminants" specifically includes:
s5100: comparing the concentration of the particle pollutants with a preset concentration;
s5200: according to the comparison result, the heat exchanger 11 is selectively cleaned lightly in advance.
Through the arrangement, the concentration of the obtained particle pollutants in the air is compared with the preset concentration, whether the external environment where the outdoor unit 1 is located has sand and dust and the severity of the sand and dust condition can be judged, whether the heat exchanger 11 needs to be slightly cleaned in advance is judged according to the sand and dust condition of the external environment, on one hand, when the sand and wind are serious, excessive dust is prevented from being accumulated on the heat exchanger 11 due to untimely cleaning, the heat exchange efficiency is prevented from being influenced, and meanwhile, the difficulty of the next slight cleaning or deep cleaning is prevented from being increased; on the other hand, when there is no wind sand, it is not necessary to clean the heat exchanger 11 lightly in advance, thereby contributing to energy saving.
It should be noted that, in practical applications, a person skilled in the art may directly compare the concentration of the particulate contaminant with the preset concentration, or may first calculate a difference between the concentration of the particulate contaminant and the preset concentration and then compare the difference with the preset value, or may first calculate a ratio between the concentration of the particulate contaminant and the preset concentration and then compare the ratio with the preset value, and the like, and such flexible adjustment and change do not depart from the principle and scope of the present invention and are all included in the protection scope of the present invention.
It should be further noted that, in practical applications, in order to reduce the false determination rate of the concentration of the particulate pollutants caused by the wind blowing up the dust, when the concentration of the particulate pollutants is greater than the preset concentration, the duration of the concentration of the particulate pollutants being greater than the preset concentration may be compared with the preset time, so that the accuracy of determining the dust condition of the external environment of the outdoor unit 1 can be improved.
Illustratively, if the duration of the time that the concentration of the particulate pollutants is greater than the preset concentration does not exceed the first preset time, it indicates that the outdoor unit 1 is located in an external environment without sand or with slight sand; if the duration time that the concentration of the particulate pollutants is greater than the preset concentration exceeds the first preset time but does not exceed the second preset time, it indicates that the external environment where the outdoor unit 1 is located has sand and dust, but the sand and dust condition is not serious; if the duration of the concentration of the particulate pollutants is greater than the preset concentration exceeds a second preset time, it indicates that the dust and sand condition in the external environment where the outdoor unit 1 is located is serious.
Preferably, as shown in fig. 3, the step of "selectively performing the light cleaning of the heat exchanger 11 in advance according to the comparison result" specifically includes:
s5210: if the concentration of the particulate pollutants is greater than the preset concentration and the duration that the concentration of the particulate pollutants is greater than the preset concentration reaches the first preset time but does not reach the second preset time, obtaining the operation time T0 of the air conditioner after the heat exchanger 11 is deeply cleaned last time;
s5220: according to the operating time period T0, the heat exchanger 11 is selectively cleaned lightly in advance.
Through the arrangement, if the concentration of the particulate pollutants in the air is greater than the preset concentration, and the duration that the concentration of the particulate pollutants is greater than the preset concentration reaches the first preset time but does not reach the second preset time, it is indicated that although the external environment where the outdoor unit 1 is located has sand and dust, the sand and dust condition is not serious, at this time, whether the heat exchanger 11 needs to be lightly cleaned or not is determined according to the running time of the air conditioner after the heat exchanger 11 is deeply cleaned last time, on one hand, if the time at this time is closer to the next deep cleaning time, the heat exchanger 11 does not need to be lightly cleaned in advance, which is beneficial to saving energy; on the other hand, if the time from the next deep cleaning is still longer, the heat exchanger 11 needs to be lightly cleaned in advance to avoid that the dust accumulated on the heat exchanger 11 is too much to affect the next light cleaning or deep cleaning.
It should be noted that, in practical applications, a person skilled in the art may directly compare the operation time period T0 with the preset value a, and selectively perform mild cleaning on the heat exchanger 11 in advance according to a comparison result; or, the difference between T1 and T0 may be calculated first, and then the difference is compared with the preset value a, and according to the comparison result, the heat exchanger 11 is selectively cleaned lightly in advance; still alternatively, T0 may be directly compared with T1, and the heat exchanger 11 may be selectively cleaned in advance according to the comparison result, and so on, and such flexible adjustment and change are not deviated from the principle and scope of the present invention and are included in the protection scope of the present invention.
Preferably, as shown in fig. 3, the step of "selectively performing the light cleaning of the heat exchanger 11 in advance according to the operation time period T0" specifically includes:
s5221: calculating a difference Δ T = T1-T0;
s5222: comparing the difference value delta T with a preset value A;
s5223: if DeltaT is more than A, the heat exchanger 11 is slightly cleaned in advance;
s5224: if DeltaT is less than or equal to A, the heat exchanger 11 is not cleaned lightly in advance.
Through the arrangement, if delta T is larger than A, the difference between T1 and T0 is larger, namely the time from the next deep cleaning is longer, the heat exchanger 11 needs to be slightly cleaned in advance, and the influence of the excessive dust accumulated on the heat exchanger 11 on the next light cleaning or deep cleaning is avoided; if delta T is less than or equal to A, the difference between T1 and T0 is not large, that is, the next deep cleaning is performed quickly, and at the moment, the heat exchanger 11 does not need to be cleaned slightly in advance, so that the energy is saved, and the use experience of a user is further improved.
Preferably, the step of "selectively performing the light cleaning of the heat exchanger 11 in advance according to the comparison result" further comprises:
if the concentration of the particulate contaminants is greater than the preset concentration and the duration that the concentration of the particulate contaminants is greater than the preset concentration reaches a second preset time, the heat exchanger 11 is lightly cleaned in advance.
Through such setting, if the concentration of granule class pollutant is greater than preset concentration and the duration that the concentration of granule class pollutant is greater than preset concentration reaches the second and predetermines the time, then explain that the sand and dust condition of the environment at off-premises station 1 place is more serious, no matter the length apart from the time of the next degree of depth clean this moment, all need carry out slight cleaning to heat exchanger 11, prevent to influence heat exchange efficiency of heat exchanger 11 owing to can not remove dust in time when the sand and dust is more in the air, avoid making dust pile up too much and influence the next light cleanness or the degree of depth clean on heat exchanger 11 simultaneously.
It should be noted that, in the case of not performing the light cleaning on the heat exchanger 11 in advance, after each deep cleaning, the light cleaning is performed on the heat exchanger 11 at intervals of the second preset time period T2, and if the light cleaning is performed on the heat exchanger 11 in advance, and after the light cleaning is completed, if the condition of performing the light cleaning on the heat exchanger 11 in advance is not satisfied, the light cleaning is still performed on the heat exchanger 11 at intervals of the second preset time period T2.
It should be noted that, in practical applications, since the heat exchanger 11 is cleaned slightly in advance, it is likely that the time of the light cleaning overlaps the time of the deep cleaning, and the operation status of the fan 12 in both the light cleaning and the deep cleaning involves blowing air towards the heat exchanger 11 by the fan 12 and periodically adjusting the air outlet direction of the fan 12, so that the light cleaning and the deep cleaning can be performed simultaneously without mutual interference of the control programs of the two.
Illustratively, if the times of the light cleaning and the deep cleaning are just coincident, the light cleaning and the deep cleaning are started simultaneously, and in the process of defrosting by the air conditioner, because the fan 12 is blowing air to the heat exchanger 11 and the air outlet direction of the fan 12 is periodically adjusted, the fan 12 does not need to be started repeatedly, so that the fan 12 blows air to the heat exchanger back and forth to blow off frost blocks on the heat exchanger 11;
if light cleaning occurs before deep cleaning, when the deep cleaning is performed, the light cleaning is not finished, the fan 12 blows air towards the heat exchanger 11 and periodically adjusts the air outlet direction of the fan 12, and the operation is performed until the deep cleaning is finished, and moreover, as the light cleaning blows off the dust on the heat exchanger 11, the dust on the heat exchanger 11 is more easily combined with frost blocks during the deep cleaning, and the deep cleaning effect is better;
if light clean takes place after the deep cleaning, when the deep cleaning is not accomplished yet, need carry out light clean, make fan 12 blow and adjust the air-out direction of fan 12 towards heat exchanger 11 periodically, and move to the light clean end always, moreover, because after the deep cleaning, can have moisture that a small amount of frost pieces melted on heat exchanger 11, the moisture on heat exchanger 11 can be weathered in the operation of light clean, avoids influencing heat exchange efficiency of heat exchanger 11.
It should be further noted that the air conditioner of the present invention further includes a controller, the controller is connected in communication with the particulate contamination detecting member, and the controller is configured to execute the above-described control method.
Finally, the control method of the present invention will be described with reference to a specific example.
Exemplarily, the first preset time period T1=29 days, the second preset time period T2=9 days, the first preset time =3 hours, the second preset time =6 hours, and the preset value a =1.
For example, in 2022, 5/1/month, the air conditioner performs one deep cleaning of the heat exchanger 11.
Normally, the heat exchanger 11 is lightly cleaned once again at 11 days 5 and 21 days 2022, respectively, and the heat exchanger 11 is deeply cleaned once again at 31 days 5 and 31 days 2022.
In exceptional cases 1, the concentration of the particulate pollutants in the air is detected to be greater than the preset concentration in 15/5/2022, but the duration is only 1 hour, so that the heat exchanger 11 does not need to be slightly cleaned in advance, and the heat exchanger 11 needs to be slightly cleaned again by 21/5/2022.
Exceptional case 2, 2022, 5 months and 15 days, the duration of detecting the concentration of the particulate pollutants in the air to be greater than the preset concentration reaches 5 hours, the running time is 14 days since the last deep cleaning, and a light cleaning of the heat exchanger 11 needs to be carried out in advance due to (29-14) > 1.
Exceptional case 3, 29/5/2022, the duration of detecting the concentration of the particulate pollutants in the air to be greater than the preset concentration reaches 5 hours, and the operation time is 28 days since the last deep cleaning, and since (29-28) =1, the heat exchanger 11 does not need to be slightly cleaned in advance.
In exceptional cases 4, when the concentration of the particulate pollutants in the air is detected to be greater than the preset concentration in 29/5/2022 and the duration reaches 7 hours, the heat exchanger 11 needs to be lightly cleaned in advance, and the heat exchanger 11 needs to be deeply cleaned again by 31/5/2022.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is apparent to those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A control method for an air conditioner is characterized in that an outdoor unit of the air conditioner comprises a shell, a heat exchanger and a fan which are arranged in the shell,
the control method comprises the following steps:
when the heat exchanger needs to be deeply cleaned, the air conditioner is enabled to execute a frosting mode;
when a set condition is met, enabling the air conditioner to execute a defrosting mode;
and in the process of executing a defrosting mode by the air conditioner, the fan blows air towards the heat exchanger and the air outlet direction of the fan is periodically adjusted.
2. The control method according to claim 1, wherein the heat exchanger is deeply cleaned once every first preset time period T1, the control method further comprising:
after the heat exchanger is deeply cleaned, slightly cleaning the heat exchanger once every second preset time T2, and blowing air towards the heat exchanger by the fan and periodically adjusting the air outlet direction of the fan when slightly cleaning the heat exchanger;
the first preset time period T1 is greater than the second preset time period T2.
3. The control method according to claim 2, characterized by further comprising:
after the heat exchanger is subjected to deep cleaning and light cleaning, acquiring the concentration of particulate pollutants in the air;
and selectively performing light cleaning on the heat exchanger in advance according to the concentration of the particulate pollutants.
4. The control method according to claim 3, wherein the step of selectively pre-cleaning the heat exchanger according to the concentration of the particulate contaminants specifically comprises:
comparing the concentration of the particle pollutants with a preset concentration;
and selectively performing light cleaning on the heat exchanger in advance according to the comparison result.
5. The control method according to claim 4, wherein the step of selectively pre-cleaning the heat exchanger according to the comparison result specifically includes:
if the concentration of the particulate pollutants is greater than the preset concentration and the duration time that the concentration of the particulate pollutants is greater than the preset concentration reaches a first preset time but does not reach a second preset time, obtaining the operation time T0 of the air conditioner after the heat exchanger is deeply cleaned last time;
and selectively performing light cleaning on the heat exchanger in advance according to the operation time length T0.
6. The control method according to claim 5, wherein the step of selectively advancing the light cleaning of the heat exchanger according to the operating period T0 specifically comprises:
calculating a difference Δ T = T1-T0;
comparing the difference value Delta T with a preset value A;
if DeltaT is more than A, the heat exchanger is slightly cleaned in advance;
if Δ T ≦ A, the heat exchanger is not lightly cleaned in advance.
7. The control method according to claim 5, wherein the step of selectively pre-cleaning the heat exchanger according to the comparison result further comprises:
if the concentration of the particulate pollutants is greater than the preset concentration and the duration that the concentration of the particulate pollutants is greater than the preset concentration reaches the second preset time, the heat exchanger is cleaned slightly in advance.
8. The control method according to any one of claims 1 to 7, wherein the step of periodically adjusting the air-out direction of the fan specifically includes:
and alternately operating the fan to blow air towards one side of the heat exchanger and the fan to blow air towards the other side of the heat exchanger for a set time.
9. The control method according to claim 8, the fan including a first fan and a second fan, the first fan being located on one side of the heat exchanger, the second fan being located on the other side of the heat exchanger,
the step of "blowing the fan toward one side of the heat exchanger" specifically includes:
blowing air towards one side of the heat exchanger by the first fan and stopping the second fan;
the step of "blowing the fan toward the other side of the heat exchanger" specifically includes:
blowing air toward the other side of the heat exchanger by the second fan and stopping the operation of the first fan.
10. An air conditioner comprising a controller, characterized in that the controller is configured to be able to perform the control method of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210730216.8A CN115218410A (en) | 2022-06-24 | 2022-06-24 | Control method for air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210730216.8A CN115218410A (en) | 2022-06-24 | 2022-06-24 | Control method for air conditioner and air conditioner |
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| Publication Number | Publication Date |
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| CN115218410A true CN115218410A (en) | 2022-10-21 |
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|---|---|---|---|
| CN202210730216.8A Pending CN115218410A (en) | 2022-06-24 | 2022-06-24 | Control method for air conditioner and air conditioner |
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| Country | Link |
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| CN (1) | CN115218410A (en) |
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- 2022-06-24 CN CN202210730216.8A patent/CN115218410A/en active Pending
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