CN109916053B - Air conditioner self-cleaning control method and air conditioner - Google Patents
Air conditioner self-cleaning control method and air conditioner Download PDFInfo
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- CN109916053B CN109916053B CN201910219011.1A CN201910219011A CN109916053B CN 109916053 B CN109916053 B CN 109916053B CN 201910219011 A CN201910219011 A CN 201910219011A CN 109916053 B CN109916053 B CN 109916053B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000010257 thawing Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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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- General Engineering & Computer Science (AREA)
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- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the technical field of air conditioners, and particularly provides an air conditioner self-cleaning control method and an air conditioner. In order to more accurately control the self-cleaning of the air conditioner, the self-cleaning control method of the air conditioner provided by the invention comprises the following steps: acquiring a heat exchanger image of an indoor unit in the process of operating a standard self-cleaning mode of the air conditioner; processing the image of the heat exchanger to obtain the coverage area S of the dirty objects on the heat exchanger; detecting the current indoor air humidity T; the frosting time and/or defrosting time of the standard self-cleaning mode is selectively adjusted according to the coverage area S of the dirt on the heat exchanger and the indoor air humidity T. Compared with the fixed frosting time and defrosting time adopted by the existing self-cleaning mode, the invention can accurately control the frosting time and defrosting time of the standard self-cleaning mode of the air conditioner according to the actual operation condition of the air conditioner, thereby greatly improving the cleaning effect of the air conditioner during self-cleaning operation and further improving the use experience of users.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides an air conditioner self-cleaning control method and an air conditioner.
Background
The air conditioner is the equipment that can refrigerate for the room/heat, and along with the time lapse, the deposition on the air conditioner indoor set can increase gradually, can breed a large amount of bacteriums after the deposition accumulates to a certain extent, especially when indoor air flows through the indoor set, can carry a large amount of dust and bacterium, consequently needs in time to clean the air conditioner.
At present, the air conditioner mostly adopts a self-cleaning mode, namely, the operation of an indoor unit is controlled, so that an evaporator is firstly frosted and then defrosted, and the evaporator is cleaned by using the defrosted air. In the process of self-cleaning operation of the existing air conditioner, the frosting time and the defrosting time are both fixed and unchangeable, and the fixed and unchangeable time is generally a value determined under an ideal and specific test working condition. However, in the actual operation process of the air conditioner, the actual operation condition of the air conditioner may be different from the ideal and specific test condition, which may cause the problem that the air conditioner is not accurately controlled easily when the existing self-cleaning program is operated, for example, the frosting time is too short, resulting in insufficient cleaning.
Therefore, a new self-cleaning control method of an air conditioner is proposed in the art to solve the above problems.
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, that is, in order to more accurately control the self-cleaning of an air conditioner, the present invention provides a self-cleaning control method of an air conditioner, which includes an indoor unit and performs self-cleaning of the indoor unit by means of first frosting and then defrosting, the self-cleaning control method of an air conditioner including the steps of: s110, acquiring a heat exchanger image of an indoor unit in the process of operating the air conditioner in a standard self-cleaning mode; s120, processing the heat exchanger image to obtain a coverage area S of the dirty objects on the heat exchanger; s130, detecting the current indoor air humidity T; s140, selectively adjusting the frosting time and/or the defrosting time of the standard self-cleaning mode according to the covering area S of the dirt on the heat exchanger and the indoor air humidity T.
In a preferred embodiment of the above-mentioned self-cleaning control method of the air conditioner, step S140 specifically includes: and executing a standard self-cleaning mode of the air conditioner when the first preset threshold value is less than S and less than the second preset threshold value and the second preset humidity value is less than T and less than the first preset humidity value.
In a preferred embodiment of the above-mentioned self-cleaning control method of the air conditioner, step S140 specifically includes: and when the first preset threshold value is less than S and less than the second preset threshold value and T is more than or equal to a first preset humidity value, reducing the frosting time of the standard self-cleaning mode by the first preset time.
In a preferred embodiment of the above-mentioned self-cleaning control method of the air conditioner, step S140 specifically includes: and when the first preset threshold value is less than S and less than the second preset threshold value and T is less than or equal to the second preset humidity value, increasing the frosting time of the standard self-cleaning mode by second preset time.
In a preferred embodiment of the above-mentioned self-cleaning control method of the air conditioner, step S140 specifically includes: and when the S is larger than or equal to a second preset threshold value and the second preset humidity value is smaller than T and smaller than the first preset humidity value, increasing the frosting time of the standard self-cleaning mode by a second preset time, and increasing the defrosting time of the standard self-cleaning mode by a first preset time.
In a preferred embodiment of the above-mentioned self-cleaning control method of the air conditioner, step S140 specifically includes: and when S is larger than or equal to a second preset threshold value and T is larger than or equal to a first preset humidity value, increasing the defrosting time of the standard self-cleaning mode by first preset time.
In a preferred embodiment of the above-mentioned self-cleaning control method of the air conditioner, step S140 specifically includes: and when S is larger than or equal to a second preset threshold value and T is smaller than or equal to a second preset humidity value, increasing the frosting time of the standard self-cleaning mode by a third preset time, and increasing the frosting time of the standard self-cleaning mode by a first preset time.
In a preferred embodiment of the above air conditioner self-cleaning control method, the first preset time is any time between 0.5 and 1.5 minutes; the second preset time is any time between 4.5 and 5.5 minutes; the third preset time is any time between 9 and 11 minutes; and/or the first preset time is 1 minute; the second preset time is 5 minutes, and the third preset time is 10 minutes.
In a preferred embodiment of the above air conditioner self-cleaning control method, an evaporator image of the indoor unit is collected by a camera installed above an evaporator of the indoor unit.
The invention also provides an air conditioner, which comprises a controller, wherein the controller is configured to execute the self-cleaning control method of the air conditioner.
The invention selectively adjusts the frosting time and/or defrosting time of the standard self-cleaning mode according to the covering area S of the dirt on the heat exchanger and the indoor air humidity T. Compared with the fixed frosting time and defrosting time adopted by the existing self-cleaning mode, the invention can accurately control the frosting time and defrosting time of the standard self-cleaning mode of the air conditioner according to the actual operation condition of the air conditioner, thereby greatly improving the cleaning effect of the air conditioner during self-cleaning operation and further improving the use experience of users.
Drawings
Fig. 1 is a main flowchart of a self-cleaning control method of an air conditioner of the present invention.
Detailed Description
In order to make the embodiments, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. 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.
The invention provides a self-cleaning control method of an air conditioner, which aims to more accurately control the self-cleaning of the air conditioner. Referring to fig. 1, fig. 1 is a main flowchart of a self-cleaning control method of an air conditioner of the present invention. As shown in fig. 1, the self-cleaning control method of the air conditioner of the present invention includes the following steps: s110, acquiring a heat exchanger image of the indoor unit in the process of operating the air conditioner in a standard self-cleaning mode; s120, processing the image of the heat exchanger to obtain the coverage area S of the dirty objects on the heat exchanger; s130, detecting the current indoor air humidity T; and S140, selectively adjusting the frosting time and/or defrosting time of the standard self-cleaning mode according to the coverage area S of the dirt on the heat exchanger and the indoor air humidity T.
In step S110, the heat exchanger image of the indoor unit can be captured by using a camera installed above the heat exchanger of the indoor unit. In step S120, the processing of the image may be implemented by a corresponding image processing module. The heat exchanger image captured by the camera can be processed by any known image processing method, and a detailed description of the image processing method is omitted here.
As can be understood by those skilled in the art, when the heat exchanger of the indoor unit is dirty, the intensity of self-cleaning is required to be high, that is, frost needs to be thicker; when the heat exchanger of the indoor unit is cleaner, the self-cleaning needs to be frosted slightly thinner. However, in the self-cleaning operation of the conventional air conditioner, the frosting time and the defrosting time are both fixed and unchanged, so in order to control the self-cleaning of the air conditioner more precisely, in step S140, the frosting time and/or the defrosting time in the self-cleaning mode may be specifically adjusted as follows.
The first situation is as follows: and when the first preset threshold value is less than S and less than the second preset threshold value, and the second preset humidity value is less than T and less than the first preset humidity value, executing a standard self-cleaning mode of the air conditioner. Specifically, the first preset threshold and the second preset threshold may be obtained through experiments by those skilled in the art, and when the coverage area S of the dirty objects on the heat exchanger is between the first preset threshold and the second preset threshold, it is determined that the heat exchanger of the indoor unit is in a generally dirty state. The second preset humidity value and the first preset humidity value may also be obtained through experiments by those skilled in the art, and when the indoor air humidity T is between the second preset humidity value and the first preset humidity value, it is determined that the current indoor humidity is in a general humidity state. In this case, a standard self-cleaning mode of the air conditioner is performed, i.e., the frosting/defrosting time in the self-cleaning mode is not increased or decreased.
Case two: and when the first preset threshold value is less than S and less than the second preset threshold value and T is more than or equal to the first preset humidity value, reducing the frosting time of the standard self-cleaning mode by the first preset time. Specifically, as mentioned above, when the coverage area S of the dirty objects on the heat exchanger is between the first preset threshold and the second preset threshold, it is determined that the heat exchanger of the indoor unit is in a normal dirty state; when the indoor air humidity T is higher than the first preset humidity value, it may be determined that the current indoor air humidity is in a humid state. In this case, the frosting time of the standard self-cleaning mode is reduced by the first preset time, and the defrosting time is maintained. The first predetermined time may be obtained by a person skilled in the art by experimentation, for example the first predetermined time may be 1 minute, or any time between 0.5 and 1.5 minutes.
Case three: and when the first preset threshold value is less than S and less than the second preset threshold value and T is less than or equal to the second preset humidity value, increasing the frosting time of the standard self-cleaning mode by the second preset time. Specifically, as mentioned above, when the coverage area S of the dirty objects on the heat exchanger is between the first preset threshold and the second preset threshold, it is determined that the heat exchanger of the indoor unit is in a normal dirty state; when the indoor air humidity T is lower than the second preset humidity value, it may be judged that the current indoor air humidity is in a dry state. In this case, the frosting time of the standard self-cleaning mode is increased by a second preset time, and the frosting time is maintained. The second predetermined time may be obtained by a person skilled in the art by experimentation, for example the second predetermined time may be 5 minutes, or any time between 4.5 and 5.5 minutes.
Case four: and when S is larger than or equal to a second preset threshold value and the second preset humidity value is smaller than T and smaller than the first preset humidity value, increasing the frosting time of the standard self-cleaning mode by second preset time, and increasing the defrosting time of the standard self-cleaning mode by first preset time. Specifically, when the coverage area S of the dirty objects on the heat exchanger is higher than a second preset threshold, it may be determined that the heat exchanger of the indoor unit is in a severely dirty state; and when the indoor air humidity T is between the second preset humidity value and the first preset humidity value, judging that the current indoor humidity is in a common humidity state. In this case, the frosting time of the standard self-cleaning mode is increased by a second preset time, and the frosting time of the standard self-cleaning mode is increased by a first preset time. The first preset time and the second preset time can be obtained by a person skilled in the art according to tests, for example, the first preset time can be 1 minute or any time between 0.5 and 1.5 minutes, and the second preset time can be 5 minutes or any time between 4.5 and 5.5 minutes.
Case five: and when S is larger than or equal to a second preset threshold value and T is larger than or equal to a first preset humidity value, increasing the defrosting time of the standard self-cleaning mode by first preset time. Specifically, when the coverage area S of the dirty objects on the heat exchanger is higher than a second preset threshold, it may be determined that the heat exchanger of the indoor unit is in a severely dirty state; when the indoor air humidity T is higher than the first preset humidity value, it may be determined that the current indoor air humidity is in a humid state. In this case, the defrosting time of the standard self-cleaning mode is increased by a first preset time, and the frosting time is maintained. The first predetermined time may be obtained by a person skilled in the art by experimentation, for example the first predetermined time may be 1 minute, or any time between 0.5 and 1.5 minutes.
Case six: and when S is larger than or equal to a second preset threshold value and T is smaller than or equal to a second preset humidity value, increasing the frosting time of the standard self-cleaning mode by a third preset time, and increasing the frosting time of the standard self-cleaning mode by a first preset time. Specifically, when the coverage area S of the dirty objects on the heat exchanger is higher than a second preset threshold, it may be determined that the heat exchanger of the indoor unit is in a severely dirty state; when the indoor air humidity T is lower than the second preset humidity value, it may be judged that the current indoor air humidity is in a dry state. In this case, the frosting time of the standard self-cleaning mode is increased by a third preset time, and the defrosting time of the standard self-cleaning mode is increased by the first preset time. The third predetermined time and the first predetermined time may be obtained by a person skilled in the art according to experiments, for example, the third predetermined time may be 10 minutes, or any time between 9 and 11 minutes, and the first predetermined time may be 1 minute, or any time between 0.5 and 1.5 minutes.
It should be noted that, the first preset threshold and the second preset threshold may be obtained by a person skilled in the art through a test, specifically, a maximum value of a coverage area S of the dirty object on the heat exchanger when the heat exchanger of the indoor unit is in a normal dirty state is obtained through test data, and when the maximum value is higher than the maximum value, it is determined that the heat exchanger of the indoor unit is in a severe dirty state. Similarly, the first preset humidity value and the second preset humidity value may also be obtained by a person skilled in the art through a test, specifically, an interval range when the indoor air humidity is at the ordinary humidity is obtained through test data, after the interval range is determined, if the indoor air humidity is higher than an upper limit of the interval range, it is indicated that the indoor air humidity is in a wet state, and if the indoor air humidity is lower than a lower limit of the interval range, it is indicated that the indoor air humidity is in a dry state. In addition, the first preset time, the second preset time and the third preset time can also be obtained by the skilled person through experiments.
The present invention also provides an air conditioner including a controller configured to be able to perform the air conditioner self-cleaning control method in the above. The specific self-cleaning control method of the air conditioner refers to the above, and is not described herein again.
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 easily understood by those skilled in the art that the scope of the present invention is obviously 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 (4)
1. A self-cleaning control method of an air conditioner, the air conditioner comprises an indoor unit and self-cleans the indoor unit by means of first frosting and then defrosting, characterized in that the self-cleaning control method of the air conditioner comprises the following steps:
s110, acquiring a heat exchanger image of an indoor unit in the process of operating the air conditioner in a standard self-cleaning mode;
s120, processing the heat exchanger image to obtain a coverage area S of the dirty objects on the heat exchanger;
s130, detecting the current indoor air humidity T;
s140, selectively adjusting the frosting time and/or the defrosting time in the standard self-cleaning mode according to the coverage area S of the dirt on the heat exchanger and the indoor air humidity T;
wherein, step S140 specifically includes:
executing a standard self-cleaning mode of the air conditioner when the first preset threshold value is less than S and less than a second preset threshold value and the second preset humidity value is less than T and less than a first preset humidity value;
when the first preset threshold value is smaller than the second preset threshold value and T is larger than or equal to a first preset humidity value, reducing the frosting time of the standard self-cleaning mode by first preset time;
when the first preset threshold value is smaller than the second preset threshold value and T is smaller than or equal to the second preset humidity value, increasing the frosting time of the standard self-cleaning mode by a second preset time;
when S is larger than or equal to a second preset threshold value and the second preset humidity value is smaller than T and smaller than the first preset humidity value, increasing the frosting time of the standard self-cleaning mode by second preset time, and increasing the frosting time of the standard self-cleaning mode by first preset time;
when S is larger than or equal to a second preset threshold value and T is larger than or equal to a first preset humidity value, increasing defrosting time of the standard self-cleaning mode by first preset time;
when S is larger than or equal to a second preset threshold value and T is smaller than or equal to a second preset humidity value, increasing the frosting time of the standard self-cleaning mode by a third preset time, and increasing the frosting time of the standard self-cleaning mode by a first preset time;
the first preset time is any time between 0.5 and 1.5 minutes; the second preset time is any time between 4.5 and 5.5 minutes; the third preset time is any time between 9 and 11 minutes.
2. An air conditioner self-cleaning control method as claimed in claim 1, wherein said first preset time is 1 minute; the second preset time is 5 minutes, and the third preset time is 10 minutes.
3. An air conditioner self-cleaning control method as claimed in claim 1, characterized in that the evaporator image of the indoor unit is collected by a camera installed above the evaporator of the indoor unit.
4. An air conditioner comprising a controller, wherein the controller is configured to be able to perform the air conditioner self-cleaning control method of any one of claims 1 to 3.
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| CN201910219011.1A CN109916053B (en) | 2019-03-21 | 2019-03-21 | Air conditioner self-cleaning control method and air conditioner |
| PCT/CN2020/079903 WO2020187227A1 (en) | 2019-03-21 | 2020-03-18 | Self-cleaning control method of air conditioner, and air conditioner |
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| CN201910219011.1A CN109916053B (en) | 2019-03-21 | 2019-03-21 | Air conditioner self-cleaning control method and air conditioner |
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| CN109916053B (en) * | 2019-03-21 | 2021-04-20 | 青岛海尔空调器有限总公司 | Air conditioner self-cleaning control method and air conditioner |
| CN110736195B (en) * | 2019-09-30 | 2021-11-23 | 青岛海尔空调器有限总公司 | Air conditioner self-cleaning control method and device and air conditioner |
| CN111442463B (en) * | 2020-04-07 | 2022-02-22 | 宁波奥克斯电气股份有限公司 | Air conditioner self-cleaning control method and device, air conditioner and storage medium |
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| US4708197A (en) * | 1985-11-01 | 1987-11-24 | Robbins R Ralph | Air to air heat exchanger |
| CN109469965A (en) * | 2017-09-08 | 2019-03-15 | 奥克斯空调股份有限公司 | A kind of cleaning method of air conditioner |
| CN108870713A (en) * | 2018-06-25 | 2018-11-23 | 珠海格力电器股份有限公司 | Air conditioner heat exchanger, air conditioner indoor unit, air conditioner and cleaning method of air conditioner heat exchanger |
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| WO2020187227A1 (en) | 2020-09-24 |
| CN109916053A (en) | 2019-06-21 |
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