CN110906495A - Air conditioner self-cleaning control method and device, air conditioner, computer equipment and storage medium - Google Patents
Air conditioner self-cleaning control method and device, air conditioner, computer equipment and storage medium Download PDFInfo
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- CN110906495A CN110906495A CN201811088811.6A CN201811088811A CN110906495A CN 110906495 A CN110906495 A CN 110906495A CN 201811088811 A CN201811088811 A CN 201811088811A CN 110906495 A CN110906495 A CN 110906495A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F2110/20—Humidity
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The invention discloses a self-cleaning control method for an air conditioner, and belongs to the technical field of self-cleaning of air conditioners. The method comprises the following steps: controlling low-temperature refrigerant to be introduced into the heat exchanger; controlling the ambient humidity of the heat exchanger to meet a first humidity condition; when the thickness of the frost layer on the fins of the heat exchanger meets a first frosting condition, the four-way valve is controlled to change direction, and a high-temperature refrigerant is introduced into the heat exchanger. By adopting the optional embodiment, because the environment humidity of the heat exchanger is controllable, a condensation stage can be cancelled, and the direct desublimation and frosting are realized, so that the time is short; moreover, the frosting degree can be ensured by detecting the thickness of the frost layer, so that the cleaning effect is more thorough, and the frosting time can be correspondingly reduced according to the thickness of the frost layer. The invention also discloses an air conditioner self-cleaning control device, an air conditioner, computer equipment and a storage medium.
Description
Technical Field
The invention relates to the technical field of air conditioner self-cleaning, in particular to an air conditioner self-cleaning control method and device, an air conditioner, computer equipment and a storage medium.
Background
At present, due to the fact that air quality is poor, the filth blocking condition of an air conditioner heat exchanger is more and more serious, pollutants are mostly small particles and oil stains and are difficult to clean, the demand of the self-cleaning air conditioner is larger and larger, the user requirement is also continuously improved, and the self-cleaning period is pursued to be shorter and shorter.
The existing air conditioner self-cleaning technology mainly adopts a method of firstly condensing to increase humidity and then frosting to realize frosting self-cleaning, but the method lacks intelligent judgment logic, the frosting amount cannot be controlled when the indoor environment is dry, and the condensing step is time-consuming.
How to provide a self-cleaning control method of an air conditioner with short self-cleaning time and good cleaning effect is a problem to be solved urgently at present.
Disclosure of Invention
The embodiment of the invention provides an air conditioner self-cleaning control method and device, an air conditioner, computer equipment and a storage medium. 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 and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of embodiments of the present invention, there is provided an air conditioner self-cleaning control method.
In some alternative embodiments, the method comprises the steps of: controlling low-temperature refrigerant to be introduced into the heat exchanger; controlling the ambient humidity of the heat exchanger to meet a first humidity condition; when the thickness of the frost layer on the fins of the heat exchanger meets a first frosting condition, the four-way valve is controlled to change direction, and a high-temperature refrigerant is introduced into the heat exchanger. By adopting the optional embodiment, because the environment humidity of the heat exchanger is controllable, a condensation stage can be cancelled, and the direct desublimation and frosting are realized, so that the time is short; moreover, the frosting degree can be ensured by detecting the thickness of the frost layer, so that the cleaning effect is more thorough, and the frosting time can be correspondingly reduced according to the thickness of the frost layer.
Optionally, the method further comprises: and acquiring the thickness of the frost layer through a laser displacement sensor. By adopting the optional embodiment, the thickness of the frost layer can be accurately measured, and the circuit structure is simple and the measurement precision is high.
Optionally, the method further comprises: acquiring the pollution condition of the heat exchanger; and controlling the circulation times of the self-cleaning process according to the pollution condition of the heat exchanger. By adopting the optional embodiment, the circulating times of the self-cleaning process can be controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect of the air conditioner is ensured to be more thorough.
Optionally, the step of acquiring the contamination condition of the heat exchanger and controlling the number of times of the self-cleaning process cycle according to the contamination condition of the heat exchanger is performed before the self-cleaning process. By adopting the optional embodiment, the pollution condition of the heat exchanger is firstly obtained, the circulating times of the self-cleaning process are controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect is ensured to be more thorough.
Optionally, the step of acquiring the contamination condition of the heat exchanger, and controlling the number of times of the self-cleaning process cycle according to the contamination condition of the heat exchanger is performed after the self-cleaning process. By adopting the optional embodiment, after the self-cleaning process is finished, the self-cleaning effect is detected, the circulating times of the self-cleaning process are controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect is ensured to be more thorough.
Optionally, the method further comprises: and acquiring the thickness of the pollutants on the surface of the heat exchanger through a laser displacement sensor, and determining the pollution condition of the heat exchanger. By adopting the optional embodiment, the thickness of the pollutants on the surface of the heat exchanger can be accurately measured, the circuit structure is simple, and the measurement precision is high.
According to a second aspect of embodiments of the present invention, there is provided an air conditioner self-cleaning control apparatus.
In some optional embodiments, the apparatus comprises: the first unit is used for controlling a low-temperature refrigerant to be introduced into the heat exchanger; the second unit is used for controlling the environment humidity of the heat exchanger to meet a first humidity condition; and the third unit is used for controlling the reversing of the four-way valve when the thickness of the frost layer on the heat exchanger fin meets the first frosting condition, and introducing a high-temperature refrigerant into the heat exchanger. By adopting the optional embodiment, because the environment humidity of the heat exchanger is controllable, a condensation stage can be cancelled, and the direct desublimation and frosting are realized, so that the time is short; moreover, the frosting degree can be ensured by detecting the thickness of the frost layer, so that the cleaning effect is more thorough, and the frosting time can be correspondingly reduced according to the thickness of the frost layer.
Optionally, the device further comprises a laser displacement sensor for acquiring the thickness of the frost layer on the heat exchanger fin. By adopting the optional embodiment, the thickness of the frost layer can be accurately measured, and the circuit structure is simple and the measurement precision is high.
Optionally, the apparatus further comprises: the fourth unit is used for acquiring the pollution condition of the heat exchanger; and the fifth unit is used for controlling the circulation times of the self-cleaning process according to the pollution condition of the heat exchanger. By adopting the optional embodiment, the circulating times of the self-cleaning process can be controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect of the air conditioner is ensured to be more thorough.
Optionally, the laser displacement sensor is further configured to obtain a thickness of the contaminant on the surface of the heat exchanger, and determine a contamination condition of the heat exchanger. By adopting the optional embodiment, the thickness of the pollutants on the surface of the heat exchanger can be accurately measured, the circuit structure is simple, and the measurement precision is high.
Optionally, the fourth unit and the fifth unit are executed before the first unit, the second unit, and the third unit. By adopting the optional embodiment, the pollution condition of the heat exchanger is firstly obtained, the circulating times of the self-cleaning process are controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect is ensured to be more thorough.
Optionally, the fourth unit and the fifth unit are executed after the first unit, the second unit, and the third unit. By adopting the optional embodiment, after the self-cleaning process is finished, the self-cleaning effect is detected, the circulating times of the self-cleaning process are controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect is ensured to be more thorough.
According to a third aspect of embodiments of the present invention, there is provided an air conditioner.
In some optional embodiments, the air conditioner comprises a heat exchanger, and further comprises the self-cleaning control device of the air conditioner in any one of the optional embodiments.
According to a fourth aspect of embodiments of the present invention, there is provided a computer apparatus.
In some optional embodiments, the computer device comprises a memory, a processor and a program stored on the memory and executable by the processor, and the processor implements the above-mentioned air conditioner self-cleaning control method when executing the program
According to a fifth aspect of embodiments of the present invention, there is provided a storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described air conditioner self-cleaning control method.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow chart illustrating a method for controlling self-cleaning of an air conditioner according to an exemplary embodiment;
fig. 2 is a block diagram illustrating a self-cleaning control apparatus of an air conditioner according to an exemplary embodiment;
fig. 3 is a block diagram illustrating a self-cleaning control apparatus of an air conditioner according to another exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention 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 embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. 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. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
Fig. 1 illustrates an alternative embodiment of an air conditioner self-cleaning control method.
In this alternative embodiment, the method comprises the steps of: and step 11, controlling the low-temperature refrigerant to be introduced into the heat exchanger. And 12, controlling the environment humidity of the heat exchanger to meet a first humidity condition. And step 13, controlling the four-way valve to change direction to introduce a high-temperature refrigerant into the heat exchanger when the thickness of the frost layer on the fins of the heat exchanger meets a first frosting condition.
By adopting the optional embodiment, because the environment humidity of the heat exchanger is controllable, a condensation stage can be cancelled, direct desublimation and frosting can be realized, and the frosting time is short; moreover, the frosting degree can be ensured by detecting the thickness of the frost layer, so that the cleaning effect is more thorough, the frosting time can be correspondingly reduced according to the thickness of the frost layer, and the period of the self-cleaning process is shortened.
Optionally, the step of controlling the low-temperature refrigerant to be introduced into the heat exchanger further includes controlling the cross-flow fan of the indoor unit to stop and the guide plate to be closed. With this alternative embodiment, the temperature of the heat exchanger can be lowered more quickly.
Optionally, the low-temperature refrigerant is introduced into the heat exchanger to reduce the temperature of the refrigerant to below zero. By adopting the optional embodiment, the temperature of the refrigerant is reduced to be below zero, and the sublimation and frosting can be realized more favorably.
Optionally, the step of controlling the ambient humidity of the heat exchanger to satisfy the first humidity condition further includes: and a humidifier or a high-pressure sprayer is adopted to humidify the environment where the heat exchanger is located.
Optionally, the first humidity condition is an ambient humidity of the heat exchanger greater than 80% (relative humidity). By adopting the optional embodiment, when the relative humidity is more than 80%, the temperature of the heat exchanger fins is about zero, and the desublimation and defrosting process is facilitated.
Optionally, the method further comprises: and acquiring the thickness of the frost layer through a laser displacement sensor. The measuring principle of the laser displacement sensor is a laser triangulation method, a laser transmitter emits visible red laser to the surface of a heat exchanger fin through a lens, the laser reflected by the fin passes through a receiver lens of the laser displacement sensor and is received by an internal CCD linear camera, and due to different distances, the CCD linear camera can detect laser spots at different angles. According to the measured angle and the known distance between the laser and the camera, the digital signal processor can calculate the distance between the laser displacement sensor and the fin, the thickness of the fin and the thickness of the fin during frosting can be measured by receiving the length of the part of the linear light source with the changed distance, the thickness of a frost layer is further calculated, and the precision can reach the micron level. By adopting the optional embodiment, the thickness of the frost layer can be accurately measured, and the circuit structure is simple and the measurement precision is high.
Optionally, the laser displacement sensor is arranged at a position over the heat exchanger to measure the thickness of the fin. Optionally, the number of the laser displacement sensors is multiple, and the frost thickness is obtained by calculating an average value of measurement results of the multiple laser displacement sensors. With this alternative embodiment, the accuracy of the frost layer measurement can be further improved.
In another optional embodiment, the method further comprises: step 21, acquiring the pollution condition of the heat exchanger; and step 22, controlling the circulation times of the self-cleaning process according to the pollution condition of the heat exchanger. By adopting the optional embodiment, the circulating times of the self-cleaning process can be controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect of the air conditioner is ensured to be more thorough.
Optionally, the step of acquiring the contamination condition of the heat exchanger and controlling the number of times of the self-cleaning process cycle according to the contamination condition of the heat exchanger is performed before the self-cleaning process. For example, before the air conditioner self-cleaning, the pollution condition of the heat exchanger is detected, the number of times of the self-cleaning process cycle is controlled according to the pollution condition of the heat exchanger, and then the number of times of the cycle is performed according to the self-cleaning process. By adopting the optional embodiment, the pollution condition of the heat exchanger is firstly obtained, the circulating times of the self-cleaning process are controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect is ensured to be more thorough.
Optionally, the step of acquiring the contamination condition of the heat exchanger and controlling the number of times of the self-cleaning process cycle according to the contamination condition of the heat exchanger is performed after the self-cleaning process. For example, the air conditioner is firstly self-cleaned, the pollution condition of the heat exchanger is detected after the self-cleaning process is finished, the number of times of the self-cleaning process cycle is controlled according to the pollution condition of the heat exchanger, and then the cycle is carried out according to the self-cleaning process. By adopting the optional embodiment, after the self-cleaning process is finished, the self-cleaning effect is detected, the circulating times of the self-cleaning process are controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect is ensured to be more thorough.
Optionally, the method further comprises: and acquiring the thickness of the pollutants on the surface of the heat exchanger through the laser displacement sensor, and determining the pollution condition of the heat exchanger. By adopting the optional embodiment, the thickness of the pollutants on the surface of the heat exchanger can be accurately measured, the circuit structure is simple, and the measurement precision is high.
Fig. 2 shows an alternative embodiment of a self-cleaning control apparatus of an air conditioner.
In this alternative embodiment, the apparatus comprises: a first unit 100 for controlling introduction of a low-temperature refrigerant into the heat exchanger 1. And a second unit 200 for controlling the ambient humidity of the heat exchanger 1 to satisfy the first humidity condition. And a third unit 300, configured to control the four-way valve to reverse when the thickness of the frost layer on the heat exchanger fin meets the first frosting condition, and introduce a high-temperature refrigerant into the heat exchanger 1.
By adopting the optional embodiment, because the environment humidity of the heat exchanger is controllable, a condensation stage can be cancelled, and the direct desublimation and frosting are realized, so that the time is short; moreover, the frosting degree can be ensured by detecting the thickness of the frost layer, so that the self-cleaning effect is more thorough, and the frosting time can be correspondingly reduced according to the thickness of the frost layer.
Optionally, the first unit 100 is further configured to control the inner tubular fan to stop and the guide plate to close. With this alternative embodiment, the heat exchanger temperature can be lowered more quickly.
Optionally, the first unit 100 is further configured to control to introduce the low-temperature refrigerant into a heat exchanger, and control the temperature of the low-temperature refrigerant to be reduced to below zero. By adopting the optional embodiment, the temperature of the low-temperature refrigerant is reduced to be below zero, and the sublimation and frosting can be realized more favorably.
Optionally, the device further comprises a humidifier or a high-pressure sprayer, and the environment where the heat exchanger is located is humidified by the humidifier or the high-pressure sprayer.
Optionally, the second unit 200 is configured to control the ambient humidity of the heat exchanger to satisfy a first humidity condition, where the ambient humidity of the heat exchanger is greater than 80% (relative humidity). By adopting the optional embodiment, when the relative humidity is more than 80%, the temperature of the heat exchanger fins is about zero, and the desublimation and defrosting process is facilitated.
Optionally, the device further comprises a laser displacement sensor, and the frost thickness is obtained through the laser displacement sensor. The measuring principle of the laser displacement sensor is a laser triangulation method, a laser transmitter emits visible red laser to the surface of a heat exchanger fin through a lens, the laser reflected by the fin passes through a receiver lens of the laser displacement sensor and is received by an internal CCD linear camera, and the CCD linear camera can detect the laser spot at different angles due to different distances. According to the measured angle and the known distance between the laser and the camera, the digital signal processor can calculate the distance between the laser displacement sensor and the fin, the thickness of the fin and the thickness of the fin during frosting can be measured by receiving the length of the part of the linear light source with the changed distance, the thickness of a frost layer is further calculated, and the precision can reach the micron level. By adopting the optional embodiment, the frost layer thickness can be accurately measured through the laser displacement sensor, and the circuit structure is simple and the measurement precision is high.
Optionally, the laser displacement sensor is arranged at a position right above the heat exchanger and used for measuring the thickness of the fin. Optionally, the number of the laser displacement sensors is multiple, and the frost thickness is obtained by calculating an average value of measurement results of the multiple laser displacement sensors. With this alternative embodiment, the accuracy of the frost layer measurement can be further improved.
Fig. 3 shows another alternative embodiment of the self-cleaning control device of the air conditioner.
In this optional embodiment, the apparatus further comprises: a fourth unit 400 for acquiring a contamination condition of the heat exchanger; a fifth unit 500 for controlling the number of self-cleaning process cycles according to the contamination condition of the heat exchanger.
By adopting the optional embodiment, the circulating times of the self-cleaning process can be controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect of the air conditioner is ensured to be more thorough.
Optionally, the laser displacement sensor is further configured to obtain a thickness of the contaminant on the surface of the heat exchanger, and determine a contamination condition of the heat exchanger. By adopting the optional embodiment, the thickness of the pollutants on the surface of the heat exchanger can be accurately measured, the circuit structure is simple, and the measurement precision is high.
Optionally, the fourth unit 400 and the fifth unit 500 are executed before the first unit 100, the second unit 200, and the third unit 300. For example, before the air conditioner self-cleaning, the pollution condition of the heat exchanger is detected, the number of times of the self-cleaning process cycle is controlled according to the pollution condition of the heat exchanger, and then the number of times of the cycle is performed according to the self-cleaning process. By adopting the optional embodiment, the pollution condition of the heat exchanger is firstly obtained, the circulating times of the self-cleaning process are controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect is ensured to be more thorough.
Optionally, the fourth unit 400 and the fifth unit 500 are executed after the first unit 100, the second unit 200, and the third unit 300. For example, the air conditioner is firstly self-cleaned, the pollution condition of the heat exchanger is detected after the self-cleaning process is finished, the number of times of the self-cleaning process cycle is controlled according to the pollution condition of the heat exchanger, and then the cycle is carried out according to the self-cleaning process. By adopting the optional embodiment, after the self-cleaning process is finished, the self-cleaning effect is detected, the circulating times of the self-cleaning process are controlled according to the pollution condition of the heat exchanger, and the self-cleaning effect is ensured to be more thorough.
Alternatively, the air conditioner self-cleaning control device may be implemented in a network-side server, or may be implemented in a mobile terminal, or may be implemented in a dedicated control device.
In some optional embodiments, an air conditioner is provided, comprising a heat exchanger, wherein the air conditioner further comprises the air conditioner self-cleaning control device.
In an exemplary embodiment, there is also provided a non-transitory computer readable storage medium, such as a memory, including instructions executable by a processor to perform the air conditioner self-cleaning control method described above. The non-transitory computer readable storage medium may be a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic tape, an optical storage device, and the like.
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 depends upon the particular application and design constraints imposed on the implementation. 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 present invention. It is clear to those skilled in the art that, for convenience and brevity 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, it should be understood that the disclosed methods, articles of manufacture (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 is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or 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 place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
It should be understood that 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 various embodiments of the present invention. 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). It should also be noted that, 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. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. The present invention is not limited to the procedures and structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A self-cleaning control method of an air conditioner is characterized by comprising the following steps:
controlling low-temperature refrigerant to be introduced into the heat exchanger;
controlling the ambient humidity of the heat exchanger to meet a first humidity condition;
when the thickness of the frost layer on the fins of the heat exchanger meets a first frosting condition, the four-way valve is controlled to change direction, and a high-temperature refrigerant is introduced into the heat exchanger.
2. The method of claim 1, further comprising: and acquiring the thickness of the frost layer through a laser displacement sensor.
3. The method of claim 1, further comprising:
acquiring the pollution condition of the heat exchanger;
and controlling the circulation times of the self-cleaning process according to the pollution condition of the heat exchanger.
4. The method of claim 3, further comprising: and acquiring the thickness of the pollutants on the surface of the heat exchanger through a laser displacement sensor, and determining the pollution condition of the heat exchanger.
5. An air conditioner self-cleaning control device, comprising:
the first unit is used for controlling a low-temperature refrigerant to be introduced into the heat exchanger;
the second unit is used for controlling the environment humidity of the heat exchanger to meet a first humidity condition;
and the third unit is used for controlling the reversing of the four-way valve when the thickness of the frost layer on the heat exchanger fin meets the first frosting condition, and introducing a high-temperature refrigerant into the heat exchanger.
6. The apparatus of claim 5, further comprising a laser displacement sensor for obtaining a frost layer thickness on the heat exchanger fin.
7. The apparatus of claim 5, further comprising:
the fourth unit is used for acquiring the pollution condition of the heat exchanger;
and the fifth unit is used for controlling the circulation times of the self-cleaning process according to the pollution condition of the heat exchanger.
8. An air conditioner comprising a heat exchanger, characterized by further comprising an apparatus as claimed in any one of claims 5 to 7.
9. A computer device comprising a memory, a processor and a program stored on the memory and executable by the processor, wherein the processor implements the method of any one of claims 1 to 4 when executing the program.
10. A storage medium on which a computer program is stored, which, when being executed by a processor, carries out the method according to any one of claims 1 to 4.
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| CN112665103A (en) * | 2021-01-18 | 2021-04-16 | 青岛海尔空调器有限总公司 | Self-cleaning control method of air conditioner and air conditioner |
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