CN110986285A - Self-cleaning control method for heat exchanger of indoor unit of air conditioner and air conditioner - Google Patents
Self-cleaning control method for heat exchanger of indoor unit of air conditioner and air conditioner Download PDFInfo
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- CN110986285A CN110986285A CN201911063430.7A CN201911063430A CN110986285A CN 110986285 A CN110986285 A CN 110986285A CN 201911063430 A CN201911063430 A CN 201911063430A CN 110986285 A CN110986285 A CN 110986285A
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
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Abstract
The invention provides a self-cleaning control method for a heat exchanger of an indoor unit of an air conditioner and the air conditioner. The self-cleaning control method comprises the following steps: recording the running state of the indoor unit; counting the dirt accumulation parameters of the heat exchanger according to the running state; the method comprises the following steps of matching a dirt accumulation parameter with a preset cleaning strategy to determine a cleaning mode of the indoor unit, wherein the cleaning strategy specifies a corresponding relation between a dirt accumulation parameter range and the cleaning mode; and controlling the indoor unit and/or the control equipment of the indoor unit to execute the cleaning mode. Because the accumulated dirt parameter is obtained through the running state statistics of the indoor unit, the accumulated dirt condition of the heat exchanger is reflected, the self-cleaning can be executed when the heat exchanger needs to be cleaned, the self-cleaning is prevented from being started by mistake or untimely, the intelligent level is improved, and the requirements of users on intelligent household appliances are met.
Description
Technical Field
The invention relates to intelligent household appliance control, in particular to a self-cleaning control method for a heat exchanger of an air conditioner indoor unit and an air conditioner.
Background
After the indoor unit of the air conditioner is placed or used for a long time, a large amount of dust and dirt exist in the air conditioner. The dust and dirt are attached to a heat exchanger of the indoor unit, so that on one hand, the heat exchange performance of the heat exchanger is reduced, and the performance of the air conditioner is reduced; on the other hand, the dust and dirt are easy to be attached to breed bacteria and form mildew, and the bacteria and the mildew can generate peculiar smell in the unit, if the peculiar smell is not cleaned in time, the health of the air conditioner user is seriously threatened.
In order to solve the problems caused by the attachment of dust and dirt on the heat exchanger of the air conditioner, the prior art adopts the technical means that condensed water is generated when the heat exchanger is used as an evaporator, and the dust and dirt on the surface of the heat exchanger are taken away by the condensed water, so that the self-cleaning of the heat exchanger of the indoor unit of the air conditioner is realized.
However, in the self-cleaning process of the air conditioner, the indoor heat exchanger needs to be firstly condensed and frosted, then condensed water is generated by a defrosting means, and the heat exchanger is rewashed. This process consumes a certain amount of electric power and adversely affects the normal heat exchange operation of the air conditioner, for example, in winter operation, self-cleaning may cause indoor cooling. Therefore, users want to clean the heat exchanger according to the actual dirt accumulation degree of the heat exchanger, and the self-cleaning times of the air conditioner are reduced as much as possible.
However, the self-cleaning function in the prior art is usually to remind regularly, and the problem of poor user experience is caused by the fact that the heat exchanger needs no cleaning release for reminding or the heat exchanger is seriously accumulated with dirt and is not reminded easily.
Disclosure of Invention
The invention aims to provide a self-cleaning control method for a heat exchanger of an indoor unit of an air conditioner and the air conditioner.
A further object of the invention is to adapt the self-cleaning of the heat exchanger to the degree of fouling of the heat exchanger.
It is another further object of the invention to enhance the user experience.
Particularly, the invention provides a self-cleaning control method for a heat exchanger of an indoor unit of an air conditioner, which comprises the following steps:
recording the running state of the indoor unit;
counting the dirt accumulation parameters of the heat exchanger according to the running state;
the method comprises the following steps of matching a dirt accumulation parameter with a preset cleaning strategy to determine a cleaning mode of the indoor unit, wherein the cleaning strategy specifies a corresponding relation between a dirt accumulation parameter range and the cleaning mode;
and controlling the indoor unit and/or the control equipment of the indoor unit to execute the cleaning mode.
Optionally, the operation state includes an operation time of the indoor unit, and the fouling parameter is an accumulated operation time of the indoor unit.
Optionally, the operation state includes an environmental parameter, an operation parameter, and an operation time of the indoor unit; the method for counting the fouling parameters of the heat exchanger according to the running state comprises the following steps: and determining a pollution accumulation coefficient according to the environmental parameter and the operation parameter, correcting the operation time according to the pollution accumulation coefficient, and counting the corrected operation time to obtain the pollution accumulation parameter.
Optionally, the step of determining the fouling factor from the environmental parameter and the operational parameter comprises: inputting environmental parameters and operating parameters into a pre-trained heat exchanger fouling model, wherein the heat exchanger fouling model is obtained by taking the environmental parameters, the operating parameters and fouling test data of an air conditioner indoor unit as sample training; and obtaining the calculation result of the heat exchanger fouling model on the environmental parameters and the operating parameters to obtain the fouling coefficient.
Optionally, the step of counting the corrected running time includes: and integrating the product of the fouling coefficient and the corresponding running time to obtain the fouling coefficient.
Optionally, the contamination accumulation parameter range comprises a reminding interval and a limited operation interval, wherein the numerical value of the reminding interval is smaller than the limited operation interval; the cleaning mode corresponding to the reminding interval comprises the following steps: sending cleaning prompt information through a display screen of the indoor unit and/or control equipment of the indoor unit; the cleaning mode corresponding to the restricted operation zone includes: and sending cleaning prompt information through a display screen of the indoor unit and/or control equipment of the indoor unit, and limiting part of preset functions of the indoor unit.
Optionally, the reminding interval includes a plurality of reminding sub-intervals, and the output mode of the cleaning reminding information corresponding to each reminding sub-interval is set to be different; the operation limiting interval comprises a plurality of operation limiting sub-intervals, and the corresponding limited functions of each operation limiting sub-interval are set to be different.
Optionally, the dirt accumulation parameter range further comprises a forced cleaning interval, and the numerical value of the forced cleaning interval is larger than the limited operation interval; the cleaning mode corresponding to the forced cleaning section includes: acquiring fan current of an indoor unit; and judging whether the current of the fan exceeds a preset current threshold value, if so, forcibly triggering a self-cleaning process of the indoor unit.
Optionally, after sending out the cleaning prompt message, the method further comprises: acquiring a control instruction for starting self-cleaning; triggering a self-cleaning flow of the indoor unit according to the control instruction, and resetting the pollution accumulation parameter.
According to another aspect of the present invention, there is also provided an air conditioner, which has a controller, and the controller includes a memory and a processor, wherein the memory stores a control program, and the control program is used to implement any one of the above-mentioned methods for controlling self-cleaning of a heat exchanger of an indoor unit of an air conditioner when executed by the processor.
The invention relates to a self-cleaning control method for a heat exchanger of an indoor unit of an air conditioner, which is characterized in that the corresponding relation between a dirt accumulation parameter range and a cleaning mode is preset, and during the running period of the indoor unit, the dirt accumulation parameter of the heat exchanger is obtained through statistics according to the recorded running state of the indoor unit; and matching a cleaning mode corresponding to the dirt accumulation parameter of the heat exchanger. The accumulated dirt parameters of the heat exchanger are obtained through statistics of the running state of the indoor unit, and the accumulated dirt condition of the heat exchanger is reflected, so that a cleaning mode corresponding to the accumulated dirt parameters of the heat exchanger is executed, self-cleaning can be executed when the heat exchanger needs to be cleaned, and the phenomenon that self-cleaning is started by mistake or is not started timely is avoided.
Furthermore, the self-cleaning control method of the heat exchanger of the indoor unit of the air conditioner can take the accumulated running time of the indoor unit as a pollution accumulation parameter, and the control mode is simple and effective.
Furthermore, the self-cleaning control method of the heat exchanger of the indoor unit of the air conditioner can also utilize a heat exchanger fouling model trained by an artificial intelligence algorithm, determine the environmental parameters and the fouling coefficients corresponding to the operating parameters of the indoor unit of the air conditioner by utilizing the heat exchanger fouling model, correct the operating time by the fouling coefficients, and take the influence of different environmental parameters and operating parameters on the fouling of the heat exchanger into consideration, so that the fouling parameters are more consistent with the actual fouling conditions of the heat exchanger, and the control is more accurate.
Furthermore, the self-cleaning control method of the heat exchanger of the indoor unit of the air conditioner provided by the invention has the advantages that different cleaning modes are set according to different dirt accumulation parameter ranges, for example, a user is preferably reminded of self-cleaning, and then partial functions are limited until self-cleaning is forced, so that sufficient operation time is provided for the user, and the user experience is improved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a control block diagram of an air conditioner according to an embodiment of the present invention; and
fig. 2 is a schematic diagram of a method for controlling self-cleaning of a heat exchanger of an indoor unit of an air conditioner according to an embodiment of the invention.
Detailed Description
The air conditioner of the present embodiment may be, but is not limited to, a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, a ceiling air conditioner, etc., and may include an indoor unit and an outdoor unit (as will be known to those skilled in the art, for an integrated air conditioner, such as a window air conditioner, the indoor unit may be understood as a part for exchanging heat with the indoor unit).
The air conditioner has the self-cleaning function of the heat exchanger of the indoor unit, the self-cleaning process can be that the air conditioner indoor unit generates condensed water through the self-frost of the heat exchanger and then defrosting, the heat exchanger is washed by the condensed water, dust and mould on the surface of the heat exchanger are removed, and the air conditioner can realize healthy and clean air supply. Since the self-cleaning process itself is well known to those skilled in the art, it will not be described herein. The air conditioner of the embodiment improves the starting and reminding of self-cleaning, ensures the self-cleaning function to be started in time and avoids useless cleaning.
Fig. 1 is a control block diagram of an air conditioner 10 according to an embodiment of the present invention. The air conditioner 10 of the present embodiment has a controller 100, the controller 100 may include a memory 120 and a processor 110, wherein the memory 120 stores a control program 121, and the control program 121 is used to implement the heat exchanger self-cleaning control method of the various air conditioner indoor units in the present embodiment when executed by the processor 110. The controller 100 may be a main control device of the air conditioner, and may be used to control a refrigeration system, a fan, and the like of the air conditioner 10, in addition to the self-cleaning control method, so as to execute a heat exchange control process required by a user.
The processor 110 may be a Central Processing Unit (CPU), a digital processing unit, or the like. The processor 110 transceives data through the communication interface. The memory 120 is used for storing a control program 121 executed by the processor 110. The memory 120 is any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, or a combination of memories.
The operation of the air conditioner 10 will be described with reference to the method for controlling self-cleaning of the heat exchanger of the indoor unit of the air conditioner in this embodiment. Fig. 2 is a schematic diagram of a heat exchanger self-cleaning control method of an air conditioner indoor unit according to an embodiment of the present invention, which may generally include:
step S202, recording the running state of the indoor unit; in some embodiments, the operation state may include an operation time of the indoor unit. In other embodiments, the operating state may further include: the environment parameters (such as part or all of the following parameters: environment humidity, environment temperature, environment air quality and the like), the operation parameters (such as part or all of the following parameters: set temperature, wind power, wind direction, cold and hot modes and the like) of the indoor unit;
and step S204, counting the fouling parameters of the heat exchanger according to the running state. In the case where the operation state is only the operation time of the indoor unit, the fouling parameter may be the accumulated operation time of the indoor unit. In general, most of pollutants such as dust and the like attached to the heat exchanger are accumulated in the operation process of the indoor unit, so the accumulated operation time of the indoor unit can reflect the pollution accumulation degree of the heat exchanger to a certain degree. The accumulated running time is used as the pollution accumulation parameter, and the calculation is simple and efficient.
Considering that different environmental parameters and operating parameters also affect the dirt accumulation condition of the heat exchanger, for example, in the case of different humidity and different air quality, the accumulation speed of pollutants such as dust attached to the heat exchanger is obviously different, and considering different set temperature and wind power, the dirt accumulation condition of the heat exchanger is also affected to a certain extent. In other embodiments, step S204 may determine the fouling factor according to the environmental parameter and the operating parameter, modify the operating time according to the fouling factor, and count the modified operating time to obtain the fouling parameter. Compared with the mode that the accumulated running time is used as the fouling parameter, the method is obviously more accurate and can reflect the actual fouling degree of the heat exchanger.
Since the indoor unit has a lot of changes in the environmental parameters and the operating parameters, it is difficult to set the fouling factor for each combination of the environmental parameters and the operating parameters. For example, environmental parameters and operating parameters of an indoor unit of an air conditioner and fouling test data of a heat exchanger can be used as samples to train to obtain a fouling model of the heat exchanger. A person skilled in the art can test a series of environmental parameters and operating parameters to measure the dirt deposition speed of the corresponding heat exchanger to form sample data.
The step of determining the fouling coefficient using the heat exchanger fouling model may comprise: inputting environmental parameters and operating parameters into a pre-trained heat exchanger fouling model; and obtaining the calculation result of the heat exchanger fouling model on the environmental parameters and the operating parameters to obtain the fouling coefficient. The artificial intelligence algorithm is adopted to determine the fouling coefficient, the obtained numerical value is more accurate, massive work of setting the fouling coefficient aiming at each combination of environmental parameters and operation parameters is avoided, and the research and development time is shortened.
The step of counting the corrected running time comprises the following steps: and integrating the product of the fouling coefficient and the corresponding running time to obtain the fouling coefficient. For example, when the fouling factor is a and the operating time is t, the fouling factor W ═ ad (t).
And step S206, matching the dirt accumulation parameters with a preset cleaning strategy to determine the cleaning mode of the indoor unit, wherein the cleaning strategy specifies the corresponding relation between the dirt accumulation parameter range and the cleaning mode.
The dirt accumulation parameter range comprises a reminding interval, a limited operation interval and a forced cleaning interval, wherein the value of the reminding interval is smaller than the limited operation interval, and the value of the limited operation interval is smaller than the forced cleaning interval.
The cleaning mode corresponding to the alert section may include: and sending cleaning prompt information through a display screen of the indoor unit and/or control equipment of the indoor unit.
The reminding interval can comprise a plurality of reminding sub-intervals, and the output mode of the cleaning reminding information corresponding to each reminding sub-interval is set to be different; for example, when the pollution accumulation parameter reaches a reminding sub-interval with a smaller numerical value, the display screen of the air conditioner can twinkle a green self-cleaning 'CL' symbol, and if a user binds the air conditioner of the user through an application program (App), the user can be pushed with reminding information needing self-cleaning through the APP. If the user does not carry out self-cleaning operation and the pollution accumulation parameter is continuously accumulated to a reminding subinterval with a larger numerical value, a display screen of the air conditioner can twinkle a yellow self-cleaning CL symbol. Under the instruction of the above embodiment, the skilled person can set green, yellow, orange and red cleaning patterns in sequence as the dirt deposition parameter increases, and the cleaning prompt information can be made more obvious by flashing, constantly lighting and the like.
The cleaning mode corresponding to the restricted operation zone includes: and sending cleaning prompt information through a display screen of the indoor unit and/or control equipment of the indoor unit, and limiting part of preset functions of the indoor unit. In the cleaning mode corresponding to the limited operation interval, the reminding mode corresponding to the reminding subinterval with the maximum numerical value can still be used for reminding, and in addition, partial preset functions of the indoor unit can be limited, so that the influence of the dirt accumulation of the heat exchanger on the indoor environment is avoided. For example, the restricted operation section includes a plurality of restricted operation sub-sections, and the restricted function corresponding to each restricted operation sub-section is set to be different. Along with the accumulation of the numerical values of the operation limiting subintervals, the maximum air quantity of the fan can be gradually limited, the load increase of the fan is avoided, and dust accumulation and bacteria of the heat exchanger are sent into a room.
The dirt accumulation parameter range also comprises a forced cleaning interval, and the numerical value of the forced cleaning interval is greater than the limited operation interval; the cleaning mode corresponding to the forced cleaning section includes: acquiring fan current of an indoor unit; and judging whether the current of the fan exceeds a preset current threshold value, if so, forcibly triggering a self-cleaning process of the indoor unit.
In the forced cleaning area, dust accumulated on the heat exchanger possibly influences the health of a user, and meanwhile, the wind resistance of the fan is increased due to the fact that more dust is considered, so that the current of the fan exceeds the standard. Then, the operation current value I1 of the inner fan at the current wind speed may be collected, and if the difference between the collected fan current value I1 and the initial current I0 of the fan at the wind speed is greater than a certain threshold (that is, the fan current exceeds a preset current threshold), it may be determined that there is more dust on the heat exchanger and the air quality is affected, and then the self-cleaning operation is automatically performed. And the dirt accumulation condition of the heat exchanger is determined again through the current of the fan, and self-cleaning is forced in time.
And step S208, controlling the indoor unit and/or the control equipment of the indoor unit to execute a cleaning mode. Namely after sending out the cleaning prompt message, the method also comprises the following steps: acquiring a control instruction for starting self-cleaning; triggering a self-cleaning flow of the indoor unit according to the control instruction, and resetting the pollution accumulation parameter, or resetting the pollution accumulation parameter after forced self-cleaning. And accumulating the fouling parameters again in the subsequent operation. The control device of the indoor unit can be a remote controller of the air conditioner, a mobile terminal (such as a smart phone) bound with the air conditioner, a smart household appliance centralized control device and the like.
The control instruction for the above self-cleaning may be generated by an operation performed by a user through an interactive device or a control apparatus of the air conditioner.
A specific example of the method for controlling self-cleaning of the heat exchanger of the indoor unit of the air conditioner according to the present embodiment is as follows: accumulating the accumulated pollution parameters according to the running state of the indoor unit, after the accumulated pollution parameters reach the first-stage reminding subinterval, displaying a green self-cleaning symbol on a screen of the indoor unit, if a self-cleaning control instruction of a user is received during the period of the green self-cleaning symbol flickering, carrying out a self-cleaning process, and resetting the accumulated pollution parameters.
And after the pollution accumulation parameter reaches the second-stage reminding subinterval, the indoor unit displays a yellow self-cleaning symbol on a screen of the display, and if a self-cleaning control instruction of a user is received during the yellow self-cleaning symbol flickering period, the self-cleaning process is carried out, and the pollution accumulation parameter is cleared.
And after the pollution accumulation parameter reaches the third-level reminding subinterval, the indoor unit displays a screen to flicker a red self-cleaning symbol, and if a self-cleaning control instruction of a user is received during the red self-cleaning symbol flickering, the self-cleaning process is carried out, and the pollution accumulation parameter is cleared.
If the reminding process does not receive the self-cleaning control instruction of the user all the time, and the pollution accumulation parameter reaches the first-stage limited operation sub-interval, the indoor unit displays a normally bright red self-cleaning symbol on the screen, and can limit the wind power to the highest wind power level, and if the self-cleaning control instruction of the user is received in the period, the self-cleaning process is carried out, and the pollution accumulation parameter is cleared.
If the reminding process does not receive the self-cleaning control instruction of the user all the time, and the pollution accumulation parameter reaches the second-stage limited operation sub-interval, the indoor unit displays a normally bright red self-cleaning symbol on the screen, and can limit the wind power to the highest low wind level, and if the self-cleaning control instruction of the user is received in the period, the self-cleaning process is carried out, and the pollution accumulation parameter is cleared.
If the accumulated dirt parameter reaches the forced cleaning interval, whether the heat exchanger is dirty or not can be confirmed through the fan current, whether the fan current exceeds a preset current threshold value or not is judged, if yes, the self-cleaning flow of the indoor unit is forcibly triggered, if the fan current does not exceed the preset current threshold value, the fan current can be continuously collected, and after the fan current exceeds the limit, the self-cleaning flow of the indoor unit is forcibly triggered.
In addition, the self-cleaning symbol displayed on the display screen of the indoor unit can be replaced by the control device of the indoor unit, for example, different self-cleaning patterns are output by the control device.
The above-mentioned reminding subinterval, the operation-limiting subinterval, the numerical range of the forced cleaning interval and the corresponding reminding and processing modes can all be flexibly configured, and the above-mentioned are only examples, and do not limit the practical use mode.
In addition, a person skilled in the art can select the accumulated running time of the indoor unit or the accumulated time corrected by the artificial intelligence algorithm as the pollution accumulation parameter according to specific requirements.
In the embodiment, the corresponding relation between the range of the fouling parameter and the cleaning mode is preset, and the fouling parameter of the heat exchanger is obtained through statistics according to the recorded running state of the indoor unit during the running period of the indoor unit; and matching a cleaning mode corresponding to the dirt accumulation parameter of the heat exchanger. The accumulated dirt parameters of the heat exchanger are obtained through statistics of the running state of the indoor unit, and the accumulated dirt condition of the heat exchanger is reflected, so that a cleaning mode corresponding to the accumulated dirt parameters of the heat exchanger is executed, self-cleaning can be executed when the heat exchanger needs cleaning, and mistaken starting for cleaning or untimely cleaning are avoided.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A self-cleaning control method for a heat exchanger of an indoor unit of an air conditioner comprises the following steps:
recording the running state of the indoor unit;
counting the dirt accumulation parameters of the heat exchanger according to the running state;
matching the dirt accumulation parameters with a preset cleaning strategy to determine a cleaning mode of the indoor unit, wherein the cleaning strategy specifies a corresponding relation between a dirt accumulation parameter range and the cleaning mode;
and controlling the indoor unit and/or control equipment of the indoor unit to execute the cleaning mode.
2. The method of claim 1, wherein
The running state comprises the running time of the indoor unit, and the pollution accumulation parameter is the accumulated running time of the indoor unit.
3. The method of claim 1, wherein
The running state comprises the environmental parameters, the running parameters and the running time of the indoor unit;
the step of counting the fouling parameters of the heat exchanger according to the running state comprises the following steps: and determining a pollution accumulation coefficient according to the environment parameter and the operation parameter, correcting the operation time according to the pollution accumulation coefficient, and counting the corrected operation time to obtain the pollution accumulation parameter.
4. The method of claim 3, wherein determining the fouling factor from the environmental parameter and the operating parameter comprises:
inputting the environmental parameters and the operating parameters into a heat exchanger fouling model trained in advance, wherein the heat exchanger fouling model is obtained by training by using the environmental parameters, the operating parameters and fouling test data of an air conditioner indoor unit as samples;
and obtaining the calculation result of the heat exchanger fouling model on the environmental parameter and the operating parameter to obtain the fouling coefficient.
5. The method of claim 3, wherein,
the step of counting the corrected running time comprises the following steps:
and integrating the product of the dirt accumulation coefficient and the corresponding running time to obtain the dirt accumulation coefficient.
6. The method of claim 1, wherein
The dirt accumulation parameter range comprises a reminding interval and a limited operation interval, wherein the numerical value of the reminding interval is smaller than the limited operation interval;
the cleaning mode corresponding to the alert interval includes: sending cleaning prompt information through a display screen of the indoor unit and/or control equipment of the indoor unit;
the cleaning mode corresponding to the restricted operation zone includes: and sending cleaning prompt information through a display screen of the indoor unit and/or control equipment of the indoor unit, and limiting part of preset functions of the indoor unit.
7. The method of claim 6, wherein
The reminding interval comprises a plurality of reminding sub-intervals, and the output mode of the cleaning reminding information corresponding to each reminding sub-interval is set to be different;
the operation limiting interval comprises a plurality of operation limiting sub-intervals, and the limited functions corresponding to the operation limiting sub-intervals are set to be different.
8. The method of claim 6, wherein
The dirt accumulation parameter range also comprises a forced cleaning interval, and the numerical value of the forced cleaning interval is greater than the limited operation interval;
the cleaning mode corresponding to the forced cleaning section includes: acquiring fan current of the indoor unit; and judging whether the current of the fan exceeds a preset current threshold value, if so, forcibly triggering a self-cleaning flow of the indoor unit.
9. The method of any of claims 6 to 8, further comprising, after issuing the cleaning cue:
acquiring a control instruction for starting self-cleaning;
and triggering a self-cleaning flow of the indoor unit according to the control instruction, and clearing the pollution accumulation parameter.
10. An air conditioner having a controller, and the controller comprises a memory and a processor, wherein the memory stores a control program, and the control program is used for implementing the heat exchanger self-cleaning control method of the indoor unit of the air conditioner according to any one of claims 1-9 when the control program is executed by the processor.
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| CN201911063430.7A CN110986285A (en) | 2019-10-31 | 2019-10-31 | Self-cleaning control method for heat exchanger of indoor unit of air conditioner and air conditioner |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780349A (en) * | 2020-07-15 | 2020-10-16 | 珠海格力电器股份有限公司 | Self-cleaning method and device for air conditioner heat exchanger and air conditioner |
| CN111811108A (en) * | 2020-06-08 | 2020-10-23 | 珠海格力电器股份有限公司 | Heat exchanger filth blockage detection method and device |
| CN111854041A (en) * | 2020-07-24 | 2020-10-30 | 广东美的暖通设备有限公司 | Self-cleaning reminding method and device for air conditioner, air conditioner and electronic equipment |
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| CN112371619A (en) * | 2020-10-22 | 2021-02-19 | 华帝股份有限公司 | Cleaning control method for cooking equipment and cooking equipment applying same |
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| CN115164347A (en) * | 2022-07-18 | 2022-10-11 | 珠海格力电器股份有限公司 | Self-cleaning control method and device for air conditioner outdoor unit, air conditioner and storage medium |
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| CN111912080A (en) * | 2020-05-26 | 2020-11-10 | 海信（山东）空调有限公司 | Air conditioner and self-cleaning method |
| CN111811108A (en) * | 2020-06-08 | 2020-10-23 | 珠海格力电器股份有限公司 | Heat exchanger filth blockage detection method and device |
| CN111780349A (en) * | 2020-07-15 | 2020-10-16 | 珠海格力电器股份有限公司 | Self-cleaning method and device for air conditioner heat exchanger and air conditioner |
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| CN111854044A (en) * | 2020-07-24 | 2020-10-30 | 广东美的暖通设备有限公司 | Self-cleaning method and device of air conditioner, air conditioner and electronic equipment |
| CN112254307A (en) * | 2020-10-22 | 2021-01-22 | 珠海格力电器股份有限公司 | Air conditioner cleaning control method, device, equipment and storage medium |
| CN112371619A (en) * | 2020-10-22 | 2021-02-19 | 华帝股份有限公司 | Cleaning control method for cooking equipment and cooking equipment applying same |
| CN112371619B (en) * | 2020-10-22 | 2022-04-05 | 华帝股份有限公司 | Cleaning control method for cooking equipment and cooking equipment applying same |
| CN112503725A (en) * | 2020-12-08 | 2021-03-16 | 珠海格力电器股份有限公司 | Air conditioner self-cleaning control method and device and air conditioner |
| CN112984740A (en) * | 2021-02-01 | 2021-06-18 | 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 |
| CN112984742A (en) * | 2021-02-01 | 2021-06-18 | 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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| CN112984740B (en) * | 2021-02-01 | 2022-09-06 | 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 |
| WO2022217929A1 (en) * | 2021-04-16 | 2022-10-20 | 青岛海尔空调器有限总公司 | Method and apparatus for initiating air conditioner self-cleaning, and smart air conditioner |
| CN113959068A (en) * | 2021-10-18 | 2022-01-21 | 珠海格力电器股份有限公司 | Reminding method for self-cleaning operation of internal and external machines of air conditioner and air conditioner |
| CN114353254A (en) * | 2022-01-19 | 2022-04-15 | 青岛海信日立空调系统有限公司 | Air conditioning system |
| CN114353254B (en) * | 2022-01-19 | 2023-10-31 | 青岛海信日立空调系统有限公司 | Air conditioning system |
| DE102022113410A1 (en) | 2022-05-27 | 2023-11-30 | Güntner Gmbh & Co. Kg | Method for operating a heat exchanger and system with a heat exchanger |
| CN115247861A (en) * | 2022-06-28 | 2022-10-28 | 浙江中广电器集团股份有限公司 | Air conditioner and dust removal control method thereof |
| CN115247861B (en) * | 2022-06-28 | 2023-09-08 | 浙江中广电器集团股份有限公司 | Air conditioner and dust removal control method thereof |
| CN115164347A (en) * | 2022-07-18 | 2022-10-11 | 珠海格力电器股份有限公司 | Self-cleaning control method and device for air conditioner outdoor unit, air conditioner and storage medium |
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