CN109916050B - Self-cleaning control method for air conditioner - Google Patents
Self-cleaning control method for air conditioner Download PDFInfo
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- CN109916050B CN109916050B CN201910218339.1A CN201910218339A CN109916050B CN 109916050 B CN109916050 B CN 109916050B CN 201910218339 A CN201910218339 A CN 201910218339A CN 109916050 B CN109916050 B CN 109916050B
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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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- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the technical field of air conditioners, and particularly provides a self-cleaning control method of 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: detecting the current air outlet volume L of an air outlet of an indoor unit in the process of operating the air conditioner in a standard self-cleaning mode; detecting the current indoor air humidity T; and selectively adjusting the frosting time and/or the defrosting time of the standard self-cleaning mode according to the air outlet volume L 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/or 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 a self-cleaning control method of 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, detecting the current air outlet volume L of an air outlet of an indoor unit in the process of operating the air conditioner in a standard self-cleaning mode; s120, detecting the current indoor air humidity T; s130, selectively adjusting the frosting time and/or the defrosting time in the standard self-cleaning mode according to the air outlet volume L and the indoor air humidity T.
In a preferred embodiment of the above-mentioned self-cleaning control method of the air conditioner, step S130 specifically includes: and when the second preset air quantity value is less than L and less than the first preset air quantity 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.
In a preferred embodiment of the above-mentioned self-cleaning control method of the air conditioner, step S130 specifically includes: and when the second preset air quantity value is less than the first preset air quantity value and the T is more than or equal to the first preset humidity value, reducing the frosting 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 S130 specifically includes: and when the second preset air quantity value is less than the first preset air quantity value and less than or equal to the second preset humidity value, increasing the frosting time of the standard self-cleaning mode by a second preset time.
In a preferred embodiment of the above-mentioned self-cleaning control method of the air conditioner, step S130 specifically includes: and when the L is less than or equal to a second preset air quantity value and the second preset humidity value is less than T and less than the first preset humidity value, increasing the frosting time in the standard self-cleaning mode by a second preset time, and increasing the defrosting time in 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 S130 specifically includes: and when the L is less than or equal to a second preset air quantity value and the T is greater than or equal to a first preset humidity value, 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 S130 specifically includes: and when the L is less than or equal to a second preset air quantity value and the T is less 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-mentioned self-cleaning control method of an air conditioner, before step S110, the self-cleaning control method of an air conditioner further comprises: detecting the air outlet volume of the air outlet of the indoor unit in real time; and when the air outlet volume meets the preset condition, the air conditioner is enabled to operate the standard self-cleaning mode.
In a preferred embodiment of the above air conditioner self-cleaning control method, the preset condition is: the air outlet volume is lower than a first set value; or the preset conditions are as follows: detecting the average value of the air outlet volume of the air outlet of the indoor unit at set time intervals, wherein the average value is lower than a second set value; or the pre-treatmentThe conditions are as follows: detecting the air outlet volume L of the air outlet of the indoor unit when the fan is at different rotating speeds1Calculating the air outlet volume L1Corresponding to L at the rotating speed0Is higher than a third set value; wherein Δ L ═ L0－L1，L0And setting standard air volume values for the fan at different rotating speeds.
The invention selectively adjusts the frosting time and/or defrosting time of the standard self-cleaning mode according to the air outlet volume L 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, detecting the current air outlet volume L of the air outlet of the indoor unit in the process of operating the air conditioner in a standard self-cleaning mode; s120, detecting the current indoor air humidity T; and S130, selectively adjusting the frosting time and/or defrosting time of the standard self-cleaning mode according to the air outlet volume L and the indoor air humidity T.
In step S110, an air volume sensor (e.g., an ultrasonic flowmeter or a fan capable of being driven by the air volume) may be disposed at the outlet of the indoor unit, and the air volume sensor is used to detect the air volume L of the outlet of the indoor unit. In step S120, the indoor air humidity T may be detected using a humidity sensor, as an example.
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 S130, 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 second preset air quantity value is less than L and less than the first preset air quantity value, and the second preset humidity value is less than T and less than the first preset humidity value, executing the standard self-cleaning mode of the air conditioner. Specifically, the first preset air volume value and the second preset air volume value may be obtained through experiments by those skilled in the art, and when the outlet air volume L is between the second preset air volume value and the first preset air volume value, 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, the air conditioner standard self-cleaning mode is performed, i.e., the frosting/defrosting time in the self-cleaning mode is not increased or decreased.
Case two: and when the second preset air quantity value is less than the first preset air quantity 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 outlet air volume L is between the second preset air volume value and the first preset air volume value, it is determined that the heat exchanger of the indoor unit is in a generally 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 second preset air quantity value is less than the first preset air quantity value and less than or equal to the second preset humidity value, increasing the frosting time of the standard self-cleaning mode by a second preset time. Specifically, as mentioned above, when the outlet air volume L is between the second preset air volume value and the first preset air volume value, it is determined that the heat exchanger of the indoor unit is in a generally 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 the L is less than or equal to a second preset air quantity value and the second preset humidity value is less than T and less 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 air outlet volume L is lower than a second preset air volume value, it can be determined that the heat exchanger of the indoor unit is in a serious 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 the L is less than or equal to a second preset air quantity value and the T is greater than or equal to a first preset humidity value, increasing the defrosting time of the standard self-cleaning mode by a first preset time. Specifically, when the air outlet volume L is lower than a second preset air volume value, it can be determined that the heat exchanger of the indoor unit is in a serious 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 the L is less than or equal to a second preset air quantity value and the T is less 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 defrosting time of the standard self-cleaning mode by a first preset time. Specifically, when the air outlet volume L is lower than a second preset air volume value, it can be determined that the heat exchanger of the indoor unit is in a serious 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 air volume value and the second preset air volume value in the above description may be obtained by a person skilled in the art through a test, specifically, the range of the air volume when the heat exchanger of the indoor unit is in a general dirty state and the maximum value of the air volume when the heat exchanger of the indoor unit is in a serious dirty state (the maximum value is the lowest value of the range of the air volume when the heat exchanger of the indoor unit is in the general dirty state) are obtained through test data. 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.
In a more specific embodiment, before executing step S110, the air self-cleaning control method of the present invention first executes the following steps: detecting the air outlet volume of an air outlet of the indoor unit in real time; and when the air outlet volume meets the preset condition, the air conditioner runs in a standard self-cleaning mode. The air outlet quantity can be detected by utilizing an air quantity sensor arranged at the air outlet position of the indoor unit.
As an example, the preset condition may be: the air outlet volume is lower than a first set value. Specifically, when the air conditioner is in normal operation (the heat exchanger of the indoor unit is not blocked), the air outlet volume of the air outlet of the indoor unit is also constant when the rotating speed of the indoor fan is constant, and the air outlet volume is reduced after the heat exchanger is blocked. In this case, a first set value can be set, and the first set value can be obtained by a person skilled in the art through a test mode.
As another example, the preset condition may also be: and detecting the average value of the air outlet volume of the air outlet of the indoor unit at set intervals, wherein the average value is lower than a second set value. As described above, in order to more accurately determine the timing when the air conditioner enters into self-cleaning, the average value of a plurality of air outlet quantities may be calculated by collecting the air outlet quantities, and the timing when the air conditioner enters into self-cleaning may be more accurately determined by comparing the average values. This second set value can be obtained experimentally by a person skilled in the art.
As another example, the preset condition may also be: detecting the air outlet volume L of the air outlet of the indoor unit when the fan is at different rotating speeds1Calculating the air outlet volume L1Corresponding to L at the rotating speed0Is higher than a third set value; wherein Δ L ═ L0－L1，L0And setting standard air volume values for the fan at different rotating speeds. Specifically, L0The standard air volume value is set for the fan at different rotating speeds, namely the air volume corresponding to the indoor fan at different rotating speeds under the condition that the heat exchanger of the indoor unit does not contain dust. By adjusting the current air outlet volume L1Corresponding standard air quantity value L0Compared with the prior art, the degree of dust on the heat exchanger of the indoor unit can be accurately judged, and whether the air conditioner enters self-cleaning or not can be further accurately judged.
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, detecting the current air outlet volume L of an air outlet of an indoor unit in the process of operating the air conditioner in a standard self-cleaning mode;
s120, detecting the current indoor air humidity T;
s130, selectively adjusting the frosting time and/or the defrosting time of the standard self-cleaning mode according to the air outlet volume L and the indoor air humidity T;
wherein, step S130 specifically includes:
when the second preset air quantity value is less than L and less than the first preset air quantity 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;
when the second preset air quantity value is smaller than the first preset air quantity value and is smaller than the second preset air quantity value and larger than or equal to the first preset humidity value, reducing the frosting time of the standard self-cleaning mode by first preset time;
when the second preset air quantity value is smaller than the first preset air quantity value and smaller than the second preset humidity value, increasing the frosting time of the standard self-cleaning mode by a second preset time;
when the L is less than or equal to a second preset air quantity value and the second preset humidity value is less than T and less than a 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;
when L is less than or equal to a second preset air quantity value and T is greater than or equal to a first preset humidity value, increasing defrosting time of the standard self-cleaning mode by first preset time;
when the L is less than or equal to a second preset air quantity value and the T is less 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 according to claim 1, wherein before step S110, the air conditioner self-cleaning control method further comprises:
detecting the air outlet volume of the air outlet of the indoor unit in real time;
and when the air outlet volume meets the preset condition, the air conditioner is enabled to operate the standard self-cleaning mode.
4. A self-cleaning control method of an air conditioner according to claim 3, wherein the preset condition is: the air outlet volume is lower than a first set value;
or the preset conditions are as follows: detecting the average value of the air outlet volume of the air outlet of the indoor unit at set time intervals, wherein the average value is lower than a second set value;
or the preset conditions are as follows: detecting the air outlet volume L of the air outlet of the indoor unit when the fan is at different rotating speeds1Calculating the air outlet volume L1Corresponding to L at the rotating speed0Is higher than a third set value;
wherein Δ L ═ L0－L1，L0And setting standard air volume values for the fan at different rotating speeds.
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| CN201910218339.1A CN109916050B (en) | 2019-03-21 | 2019-03-21 | Self-cleaning control method for air conditioner |
| PCT/CN2020/079914 WO2020187236A1 (en) | 2019-03-21 | 2020-03-18 | Self-cleaning control method for air conditioner |
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| CN109916050B (en) * | 2019-03-21 | 2021-04-20 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN110469940B (en) * | 2019-07-17 | 2021-09-21 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| WO2023173587A1 (en) * | 2022-03-16 | 2023-09-21 | 广东美的制冷设备有限公司 | Air conditioner control method, air conditioner, and computer-readable storage medium |
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| CN109237746B (en) * | 2018-09-12 | 2021-04-20 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
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| CN109916050B (en) * | 2019-03-21 | 2021-04-20 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
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| WO2020187236A1 (en) | 2020-09-24 |
| CN109916050A (en) | 2019-06-21 |
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