CN109916039B - Self-cleaning humidification control method for air conditioner - Google Patents
Self-cleaning humidification control method for air conditioner Download PDFInfo
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- CN109916039B CN109916039B CN201910219004.1A CN201910219004A CN109916039B CN 109916039 B CN109916039 B CN 109916039B CN 201910219004 A CN201910219004 A CN 201910219004A CN 109916039 B CN109916039 B CN 109916039B
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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
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
Abstract
The invention belongs to the technical field of air conditioners, and particularly provides a self-cleaning humidification control method for an air conditioner. In order to improve the self-cleaning effect of the air conditioner, the self-cleaning humidification control method of the air conditioner comprises the following steps: under the condition that the air conditioner needs to perform self-cleaning, acquiring the current humidity of indoor air and a heat exchanger image of an indoor unit; processing the image of the heat exchanger to obtain the turbidity of the heat exchanger; calculating the frosting intensity and the target humidity of the indoor air required by meeting the frosting intensity according to the turbidity degree of the heat exchanger; the amount of humidification of the indoor air is controlled according to the current humidity of the indoor air and the target humidity of the indoor air. According to the invention, by controlling the humidification quantity of the indoor air, the situation that the humidity of the indoor air is too low and cannot reach the preset frosting strength and the situation that the indoor air is continuously humidified due to the humidity of the indoor air is too high are effectively avoided, the frosting thickness of the air conditioner in the self-cleaning process is ensured, and the self-cleaning effect of the air conditioner is further improved.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a self-cleaning humidification control method for 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.
When the air conditioner performs self-cleaning, the self-cleaning effect has a great relationship with the frosting intensity, and the frosting intensity has a great relationship with the indoor humidity. When the indoor air quality is poor, if the moisture in the indoor air is used for frosting, the dust in the air is brought in, and the self-cleaning effect is influenced. Furthermore, excessive humidification may result in excessive frost formation from the cleaning device, which may cause damage to the machine.
Therefore, the present invention provides a self-cleaning humidification control method for an air conditioner to solve the above problems.
Disclosure of Invention
In order to solve the above problems in the prior art, namely to improve the self-cleaning effect of the air conditioner, the invention provides a self-cleaning humidification control method of the air conditioner, the air conditioner comprises an indoor unit and self-cleans the indoor unit in a way of frosting firstly and then defrosting, the self-cleaning humidification control method of the air conditioner comprises the following steps: s110, under the condition that the air conditioner needs to perform self-cleaning, acquiring the current humidity of indoor air and a heat exchanger image of the indoor unit; s120, processing the image of the heat exchanger to obtain the turbidity of the heat exchanger; s130, calculating frosting intensity and target humidity of indoor air required by meeting the frosting intensity according to the turbidity degree of the heat exchanger; s140, controlling the amount of humidification water for the indoor air according to the current humidity of the indoor air and the target humidity of the indoor air; wherein the frosting intensity is the frosting amount of the air conditioner in the self-cleaning process.
In a preferred embodiment of the above self-cleaning humidification control method for an air conditioner, step S140 specifically includes: when the current humidity of the indoor air is lower than the target humidity, calculating the humidification water amount required for humidifying the indoor air to the target humidity according to the target humidity; and humidifying the indoor air according to the humidifying water amount.
In a preferred embodiment of the above self-cleaning humidification control method for an air conditioner, step S140 specifically includes: when the current humidity of the indoor air is not lower than the target humidity, the indoor air is not humidified.
In a preferred embodiment of the above air conditioner self-cleaning humidification control method, the air conditioner further includes a water storage chamber disposed in the indoor unit and a humidification module, the humidification module can atomize water in the water storage chamber to humidify indoor air; the self-cleaning humidification control method of the air conditioner further comprises the following steps: before humidifying the indoor air, acquiring water quantity and water quality information in the water storage cavity; judging whether to start the humidifying module according to the water quantity and the water quality information; wherein the indoor air can be humidified after the humidification module is activated.
In a preferred embodiment of the above air conditioner self-cleaning humidification control method, "determining whether to activate the humidification module according to the water amount and the water quality information" includes: and when the water quantity is more than or equal to the humidifying water quantity and the water quality information meets a preset water quality standard, starting the humidifying module.
In a preferred embodiment of the above air conditioner self-cleaning humidification control method, "determining whether to activate the humidification module according to the water amount and the water quality information" includes: when the water quantity is smaller than the humidifying water quantity and the water quality information meets a preset water quality standard, starting the humidifying module and sending out reminding information; the reminding information is used for reminding a user of adding water into the water storage cavity.
In a preferred embodiment of the above air conditioner self-cleaning humidification control method, "determining whether to activate the humidification module according to the water amount and the water quality information" includes: when the water quality information does not meet the preset water quality standard, the humidifying module is not started and reminding information is sent out; the reminding information is used for reminding a user to replace the water in the water storage cavity.
In a preferred embodiment of the above air conditioner self-cleaning humidification control method, the air conditioner self-cleaning humidification control method further comprises: under the condition of starting the humidifying module, enabling the working frequency of the humidifying module to be a first preset working frequency; acquiring the real-time temperature of the coil pipe of the indoor unit; and selectively adjusting the working frequency of the humidifying module according to the real-time temperature.
In an embodiment of the above self-cleaning humidification control method for an air conditioner, the step of selectively adjusting the operating frequency of the humidification module according to the real-time temperature specifically includes: increasing the working frequency of the humidifying module along with the reduction of the real-time temperature, and fixing the working frequency of the humidifying module at a second preset working frequency when the real-time temperature is reduced to a preset temperature; wherein the second preset working frequency is greater than the first preset working frequency.
In a preferred embodiment of the above air conditioner self-cleaning humidification control method, "selectively adjusting the operating frequency of the humidification module according to the real-time temperature" further includes: and after the humidifying module works at the second preset working frequency for a first preset time, reducing the working frequency of the humidifying module along with the increase of the working time, and stopping the humidifying module after the humidifying module continues to work for a second preset time.
When the air conditioner needs to be self-cleaned, the self-cleaning effect of the air conditioner is greatly related to the frosting intensity, and the frosting intensity is greatly related to the indoor humidity. If the frost is too thick, the air conditioner may be damaged to some extent. Therefore, the invention effectively avoids the situation that the humidity of the indoor air is too low and cannot reach the preset frosting strength and the situation that the indoor air is continuously humidified due to the humidity of the indoor air is too high by controlling the humidifying water amount of the indoor air, ensures the frosting thickness of the air conditioner in the self-cleaning process and further improves the self-cleaning effect of the air conditioner.
Drawings
Fig. 1 is a main flow chart of a self-cleaning humidification 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 air conditioner provided by the invention automatically cleans the indoor unit by means of defrosting after frosting. Referring to fig. 1, fig. 1 is a main flow chart of a self-cleaning humidification control method of an air conditioner of the present invention. As shown in fig. 1, the self-cleaning humidification control method of the air conditioner of the present invention comprises the following steps: s110, acquiring the current humidity of indoor air and a heat exchanger image of an indoor unit under the condition that the air conditioner needs to perform self-cleaning; s120, processing the image of the heat exchanger to obtain the turbidity of the heat exchanger; s130, calculating the frosting intensity and the target humidity of the indoor air required by the frosting intensity according to the turbidity degree of the heat exchanger; s140, controlling the amount of humidification water for the indoor air according to the current humidity of the indoor air and the target humidity of the indoor air; wherein, the frosting intensity is the frosting amount of the air conditioner in the self-cleaning process.
Specifically, in step S140, when the current humidity of the indoor air is lower than the target humidity, the humidification water amount required to humidify the indoor air to the target humidity is calculated from the target humidity, and then the indoor air is humidified by the humidification water amount. When the current humidity of the indoor air is not lower than the target humidity, it is indicated that the current humidity of the indoor air can meet the preset frosting intensity, and therefore the indoor air is not humidified. So, through the humidification water yield of control to the room air to effectively avoid the room air humidity to hang down the situation that can't reach preset frosting intensity excessively and avoid still continuing to carry out the situation of humidification to the room air because of the room air humidity is too high, guaranteed the frosting thickness of air conditioner at the automatically cleaning in-process, further promote the automatically cleaning effect of air conditioner.
As will be appreciated by those skilled in the art, the degree of fouling of the indoor heat exchangers varies, the intensity of frost formation that is typically required varies, and the target humidity of the indoor air that is required varies, i.e., the amount of humidification water that is ultimately achieved varies. Therefore, in step S130, the present invention calculates the frost formation intensity required for the indoor unit from the degree of contamination of the heat exchanger obtained by image processing of the heat exchanger. For example, a higher degree of fouling of the heat exchanger indicates a dirtier heat exchanger, i.e. a higher frost formation strength is required. Therefore, a person skilled in the art can obtain the functional relationship between the turbidity and the frosting intensity of the heat exchanger through a test mode, and then the frosting intensity required by the air conditioner can be determined only by processing the image of the heat exchanger to obtain the turbidity of the heat exchanger. And the target humidity required to achieve this frosting intensity can be determined experimentally. Thus, in step S140, when the current humidity of the indoor air is detected, it is only necessary to compare the current humidity with the target humidity value. In addition, if the current humidity is lower than the target humidity, the current humidity value is subtracted from the target humidity value, namely the humidity value required to be humidified, and the required humidifying water quantity can be determined according to the humidity value required to be humidified, so that the frosting quantity of the air conditioner in the self-cleaning process is ensured, and the self-cleaning effect is improved.
For example, in step S120, the heat exchanger image is processed to obtain the contamination level of the heat exchanger. This step may be implemented using an image recognition module. It should be noted that, the image recognition module may be any existing chip for image processing, as long as the purpose of analyzing and processing the image to obtain the turbidity is achieved. For example, the acquired image of the heat exchanger may be compared with a clean image of the heat exchanger (i.e., the image is not covered with dirt such as dust), so as to obtain the amount of dust on the current image of the heat exchanger, and then the dirt level of the dust may be calculated according to a set algorithm. The person skilled in the art may also use any other reasonable algorithm to calculate the turbidity at the heat exchanger and will not be described in detail here. Regarding the acquisition of the heat exchanger image, a camera arranged above the heat exchanger can be utilized for shooting and collecting.
In a specific embodiment, a water storage chamber and a humidifying module for atomizing water in the water storage chamber to humidify indoor air may be provided on the indoor unit. After step S130, the self-cleaning humidification control method of an air conditioner of the present invention further includes: when the indoor air needs to be humidified (namely the current humidity of the indoor air is lower than the target humidity), acquiring water quantity and water quality information in the water storage cavity; and judging whether to start the humidifying module according to the water quantity and water quality information. The indoor air can be humidified after the humidification module is activated. Specifically, when the water amount is greater than or equal to the humidifying water amount and the water quality information meets a preset water quality standard, the humidifying module is started. When the water quantity is less than the humidifying water quantity and the water quality information meets a preset water quality standard, starting the humidifying module and sending out reminding information; the reminding information is used for reminding a user of adding water into the water storage cavity. When the water quality information does not meet the preset water quality standard, the humidifying module is not started and reminding information is sent out; wherein, the reminding information is used for reminding the user to replace the water in the water storage cavity. It will be appreciated by those skilled in the art that humidifying the indoor air with poor moisture may pollute the indoor air, cause frosting and bring in dust in the air, affecting the self-cleaning effect, and only with clean water can have a better cleaning effect. Therefore, only when the water quality information meets the preset water quality standard, the humidification module is favorable for humidifying the indoor air, so that the situation of polluting the indoor air is prevented.
In one specific embodiment, the water quantity and the water quality in the water storage chamber meet the requirement under the condition that the humidification module is started to wash, namely the current air humidity is lower than the target humidity. At this time, the self-cleaning humidification control method of the air conditioner of the invention further comprises the following steps: the working frequency of the humidifying module is made to be a first preset working frequency; acquiring the real-time temperature of an indoor unit coil; and selectively adjusting the working frequency of the humidifying module according to the real-time temperature. Because the temperature of the heat exchanger of the indoor unit is gradually reduced in the self-cleaning process of the air conditioner, the working frequency of the humidifying module can be changed along with the temperature of the heat exchanger of the indoor unit for better frosting effect. Specifically, during the process of entering the self-cleaning operation, the operating frequency of the humidifying module is set to a first preset operating frequency, and the value of the first preset operating frequency is assumed to be 1. Then the real-time temperature of the indoor unit coil is obtained, the working frequency of the humidifying module is increased along with the reduction of the real-time temperature, and when the real-time temperature is reduced to a preset temperature, the working frequency of the humidifying module is fixed at two preset working frequencies. Wherein the second preset working frequency is larger than the first preset working frequency. It should be noted that the preset temperature may be determined experimentally by a person skilled in the art to be a reasonable temperature value, for example, at which the operating frequency of the humidification module is fixed at 1.5 or 2 or other reasonable operating frequency. It should be noted that the process of increasing the operating frequency of the humidification module with the decrease of the real-time temperature may be linear or non-linear, which can be determined by a person skilled in the art through experiments according to the actual application scenario.
Further, after the humidifying module works at a second preset working frequency for a first preset time, the working frequency of the humidifying module is reduced along with the increase of the working time, and after the humidifying module continues to work for a second preset time, the humidifying module stops working. The first preset time and the second preset time can be flexibly determined by a person skilled in the art according to actual conditions, and the first preset time and the second preset time are not limited herein.
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 (9)
1. A self-cleaning humidification control method of an air conditioner, the air conditioner comprises an indoor unit and self-cleaning is carried out on the indoor unit in a way of first frosting and then defrosting, and the self-cleaning humidification control method of the air conditioner is characterized by comprising the following steps:
s110, under the condition that the air conditioner needs to perform self-cleaning, acquiring the current humidity of indoor air and a heat exchanger image of the indoor unit;
s120, processing the image of the heat exchanger to obtain the turbidity of the heat exchanger;
s130, calculating frosting intensity and target humidity of indoor air required by meeting the frosting intensity according to the turbidity degree of the heat exchanger;
s140, controlling the amount of humidification water for the indoor air according to the current humidity of the indoor air and the target humidity of the indoor air;
wherein the frosting intensity is the frosting amount of the air conditioner in the self-cleaning process.
2. The self-cleaning humidification control method of an air conditioner as claimed in claim 1, wherein step S140 specifically comprises:
when the current humidity of the indoor air is lower than the target humidity, calculating the humidification water amount required for humidifying the indoor air to the target humidity according to the target humidity;
and humidifying the indoor air according to the humidifying water amount.
3. The self-cleaning humidification control method of an air conditioner as claimed in claim 2, wherein step S140 further comprises:
when the current humidity of the indoor air is not lower than the target humidity, the indoor air is not humidified.
4. The self-cleaning humidification control method of any one of claims 1 to 3, wherein the air conditioner further comprises a water storage chamber disposed in the indoor unit and a humidification module capable of atomizing water in the water storage chamber to humidify indoor air;
the self-cleaning humidification control method of the air conditioner further comprises the following steps:
before humidifying the indoor air, acquiring water quantity and water quality information in the water storage cavity;
judging whether to start the humidifying module according to the water quantity and the water quality information;
wherein the indoor air can be humidified after the humidification module is activated.
5. The self-cleaning humidification control method of claim 4, wherein the step of determining whether to activate the humidification module based on the water volume and the water quality information comprises:
and when the water quantity is more than or equal to the humidifying water quantity and the water quality information meets a preset water quality standard, starting the humidifying module.
6. The self-cleaning humidification control method of claim 4, wherein the step of determining whether to activate the humidification module based on the water volume and the water quality information comprises:
when the water quantity is smaller than the humidifying water quantity and the water quality information meets a preset water quality standard, starting the humidifying module and sending out reminding information;
the reminding information is used for reminding a user of adding water into the water storage cavity.
7. The self-cleaning humidification control method of claim 4, wherein the step of determining whether to activate the humidification module based on the water volume and the water quality information comprises:
when the water quality information does not meet the preset water quality standard, the humidifying module is not started and reminding information is sent out;
the reminding information is used for reminding a user to replace the water in the water storage cavity.
8. An air conditioner self-cleaning humidification control method as recited in claim 4 further comprising:
under the condition of starting the humidifying module, enabling the working frequency of the humidifying module to be a first preset working frequency;
acquiring the real-time temperature of the coil pipe of the indoor unit;
increasing the working frequency of the humidifying module along with the reduction of the real-time temperature, and fixing the working frequency of the humidifying module at a second preset working frequency when the real-time temperature is reduced to a preset temperature;
wherein the second preset working frequency is greater than the first preset working frequency.
9. An air conditioner self-cleaning humidification control method as recited in claim 8 further comprising:
and after the humidifying module works at the second preset working frequency for a first preset time, reducing the working frequency of the humidifying module along with the increase of the working time, and stopping the humidifying module after the humidifying module continues to work for a second preset time.
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| CN201910219004.1A CN109916039B (en) | 2019-03-21 | 2019-03-21 | Self-cleaning humidification control method for air conditioner |
| PCT/CN2020/079951 WO2020187252A1 (en) | 2019-03-21 | 2020-03-18 | Self-cleaning humidification control method for air conditioner |
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| CN109916039B (en) * | 2019-03-21 | 2021-01-29 | 青岛海尔空调器有限总公司 | Self-cleaning humidification control method for 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 |
| CN113357789B (en) * | 2021-05-20 | 2022-10-28 | 青岛海尔空调器有限总公司 | Control method and device for self-cleaning of air conditioner and air conditioner |
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| WO2020187252A1 (en) | 2020-09-24 |
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