CN110940038A - Air conditioner dust removal control method and device, air conditioner and computer readable storage medium - Google Patents

The invention provides an air conditioner dust removal control method, an air conditioner dust removal control device, an air conditioner and a computer readable storage medium, wherein the air conditioner dust removal control method comprises the following steps: detecting a windshield and a present current I of a fan of an air conditioner_{At present}(ii) a Will be the present current I_{At present}Corresponding to the limiting current I under the windshield_{Extreme limit}Making a comparison whenCurrent I_{At present}Less than or equal to the limiting current I_{Extreme limit}And if so, carrying out dust removal reminding and judging whether to enter a self-cleaning mode. The invention can monitor the dust accumulation condition of the air conditioner, reminds the user to start the self-cleaning mode when cleaning is needed, improves the air conditioner using experience of the user and avoids unnecessary electric energy waste.

Air conditioner dust removal control method and device, air conditioner and computer readable storage medium

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner dust removal control method and device, an air conditioner and a computer readable storage medium.

Background

In hot summer or cold winter, the air conditioner becomes a popular household appliance. The air conditioner is in the use, and the indoor chance of air conditioner constantly gathers the dust along with the increase of live time, and the dust gathers can increase the windage in air conditioner wind channel, causes the fan energy consumption to promote, heat exchange efficiency descends, the air conditioner efficiency reduces, and the dust is long-term not clear up can produce germ, mildenes and rot, peculiar smell, brings harm for user's health.

In the prior art, the dust cleaning mode of the air conditioner comprises manual cleaning and air conditioner self-cleaning, the manual cleaning is time-consuming and labor-consuming, all parts of the air conditioner need to be disassembled and cleaned, and all parts need to be reassembled after the cleaning is finished. Therefore, many current air conditioners adopt a self-cleaning mode, and the self-cleaning air conditioners in the current market need users to automatically judge whether cleaning is needed or not, and the users easily forget to clean the air conditioners or frequently clean the air conditioners, which affects the use effect of the air conditioners and causes unnecessary energy waste.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a method and an apparatus for controlling dust removal of an air conditioner, and a computer-readable storage medium, which can monitor the dust deposition condition of the air conditioner, remind a user to start a self-cleaning mode when cleaning is needed, improve the user experience of the air conditioner, and avoid unnecessary power waste.

In order to solve the problems, the invention provides an air conditioner dust removal control method, which comprises the following steps:

detecting a damper of a fan of an air conditioner and a fan control methodFront current I_{At present}；

Will be the present current I_{At present}Corresponding to the limiting current I under the windshield_{Extreme limit}Comparing when the current I is_{At present}Less than or equal to the limiting current I_{Extreme limit}And if so, carrying out dust removal reminding and judging whether to enter a self-cleaning mode.

By the control method, the dust accumulation condition of the air conditioner can be monitored, a user is reminded to start the self-cleaning mode when the air conditioner needs to be cleaned, the air conditioner use experience of the user is improved, and unnecessary electric energy waste is avoided. The intelligent air conditioner filth blockage degree judging method can intelligently judge the filth blockage degree of the air conditioner, improves the multifunctional usability of the air conditioner and reduces the power consumption under the condition of not increasing the cost.

In some embodiments of the invention, the windshield of the fan of the air conditioner and the present current I are detected_{At present}Before, the method also comprises the following steps:

and detecting the continuous operation time of the fan, thereby improving the detection accuracy of the windshield and the current of the fan.

In some embodiments of the present invention, before determining whether to enter the self-cleaning mode, the following steps are performed: judging the current I_{At present}Less than or equal to the limiting current I_{Extreme limit}Whether the duration of the time interval is greater than a preset duration threshold value or not, so as to ensure that the detection result of the dust accumulation is stable.

In some embodiments of the invention, when the dust removal reminding is performed, at least one or more of characters, light, sound and error codes are used for reminding.

In some embodiments of the invention, when entering the self-cleaning mode, the following steps are performed:

starting a dehumidification mode, wherein the starting time is a preset first time threshold value, so that water drops are gathered on the heat exchanger fins, and the heat exchanger fins are cleaned under the action of self gravity;

starting a heating low-wind mode, wherein the starting time is a preset second time threshold, heating an indoor unit heat exchanger, and killing bacteria attached to the heat exchanger through high temperature; the effects of cleaning and sterilization are achieved.

In some embodiments of the invention, when entering the self-cleaning mode, the following steps are also performed:

and operating the single air-out mode, wherein the opening time is a preset third time threshold, and blowing out the residual heat of the indoor unit heat exchanger in the low air heating mode.

In some embodiments of the invention, the limiting current I_{Extreme limit}The air volume of the fan is the current value when the air volume of the fan is reduced to 60% of the original air volume, and the original air volume refers to the air volume of the fan when an indoor unit of the air conditioner is free of dust accumulation.

According to another aspect of the present invention, there is also provided an air conditioner dust removal control apparatus, including:

the timer is used for detecting the continuous operation time of the fan;

a fan detection sensor for detecting the wind shield and the current I of the fan_{At present}；

The dust removal reminder is used for carrying out dust removal reminding;

the self-cleaning unit is used for cleaning and sterilizing the heat exchanger of the indoor unit of the air conditioner; and

a controller for controlling the wind turbine according to the continuous operation time of the wind turbine, the wind shield of the wind turbine and the current I_{At present}And judging whether the air conditioner carries out dust removal reminding or not and whether the air conditioner enters a self-cleaning mode or not.

According to another aspect of the present invention, there is also provided an air conditioner comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that,

the processor realizes the steps defined by the air conditioner dust removal control method when executing the computer program; and/or

The dust removal control device of the air conditioner is provided.

According to another aspect of the present invention, there is also provided a computer-readable storage medium having a computer program stored thereon, wherein the computer program is configured to implement the steps of the air conditioner dust removal control method as described above when executed.

Drawings

FIG. 1 is a step diagram of an air conditioner dust removal control method according to an embodiment of the present invention.

FIG. 2 is a flow chart of a dust removal control method of an air conditioner according to an embodiment of the present invention.

Fig. 3 is a flowchart of the self-cleaning mode of fig. 2.

Fig. 4 is a schematic structural diagram of an air conditioner dust removal control device according to an embodiment of the invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Certain embodiments of the invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.

In an embodiment of the present invention, a method for controlling dust removal of an air conditioner is provided, as shown in fig. 1, the method includes the following steps:

s1, detecting the wind shield and the current I of the fan of the air conditioner_{At present}。

The experimental data and theoretical analysis can show that when the rotating speed N of the fan is a fixed value, the current of the fan and the wind resistance are in an inverse proportion relation, the larger the wind resistance is, the smaller the current of the fan is, that is, the more dust is deposited on the indoor unit of the air conditioner, the larger the wind resistance is, and the smaller the current of the fan is. The invention judges the dust deposition condition of the indoor unit of the air conditioner by detecting the current of the fan, and needs to be explained that the invention takes the rotating speed N of the fan as a precondition rather than that the dust deposition of the indoor unit of the air conditioner can influence the air volume, in order to achieve the preset air volume, the rotating speed of the fan can be increased, and then the current of the fan can be increased.

The indoor unit of the air conditioner is usually provided with three high, medium and low gear rotating speeds N_{Height of}、N_In、N_{Is low in}And the rotating speeds are all set when the air conditioner leaves the factoryIs a constant value. The heat exchanger of the indoor unit of the air conditioner can slowly accumulate dust along with the increase of the service time, and the gaps between the fins are blocked, so that the wind resistance is increased, the air quantity is reduced, and meanwhile, the current of the fan is reduced. In addition, the windshield of the fan can be determined by detecting the rotation speed of the motor.

S2, converting the current I_{At present}Corresponding to the limiting current I under the windshield_{Extreme limit}Comparing when the current I is_{At present}Less than or equal to the limiting current I_{Extreme limit}If so, carrying out dust removal reminding and judging whether to enter a self-cleaning mode; otherwise, the air conditioner does not perform dust removal reminding and continues to operate normally.

Along with the increase of the dust deposition, the current of the fan is continuously reduced, when the current offset of the fan reaches a certain limit value, the air quantity is attenuated to be within an economic application range, at the moment, the wind resistance reaches the limit value, the dust deposition of the heat exchanger also reaches the limit, at the moment, a user needs to be reminded to select an air conditioner self-cleaning mode, and the user judges whether to clean or not.

In practical application, the limiting current I under the high, medium and low three-gear rotating speed can be tested in an experimental mode before the air conditioner leaves a factory_{Extreme limit}The measurement is carried out, taking the high gear as an example, on the limit current I_{Extreme limit}The measurement of (2) is explained in detail, and the specific method is as follows:

fixing the speed of the indoor unit fan to a high gear, e.g. high gear speed N_{Height of}1035rpm, when there is no wind resistance, i.e. the wind resistance coefficient is 0, the indoor unit is clean, and the measured wind volume is 1442m³The air quantity attenuation is 0%, and the motor current is 0.95A. Then, the wind resistance coefficient was increased to 0.1, and the wind rate was 1380m³The air quantity attenuation is 4 percent, and the motor current is 0.9A. And (3) increasing the wind resistance coefficients in sequence, increasing the wind resistance coefficients from 0 to 1, wherein the increase amplitude is 0.1, measuring the wind volume, the wind volume attenuation and the motor current under each wind resistance coefficient, and measuring results are shown in table 1.

TABLE 1 Motor Current measurement at high Gear speeds

In the embodiment of the invention, when the air volume is reduced to 60% along with the increase of the wind resistance, namely the air volume is attenuated by 40%, the current of the fan at the moment is determined as the limiting current I_{Extreme limit}As shown in table 1, when the wind resistance coefficient is 0.8, the air volume attenuation rate reaches the limit value of 40%, at this time, the air volume is 60% of the original air volume, at this time, the corresponding motor current is 0.52A, that is, the limit current I at the high-gear rotation speed_{Extreme limit}And was 0.52A.

Limiting current I for middle-gear and withstanding rotating speed_{Extreme limit}The limiting currents I under the rotating speeds of three gears are respectively obtained by measurement by the same experimental method_{Extreme limit}And recorded in the air conditioner. Therefore, for a certain machine type, under the condition that the required rotating speed of the high, medium and low three-gear motor is a fixed value, the limit current value can be stored through early-stage testing, and then the air conditioner is cleaned and sterilized according to the technical scheme of the invention.

In the embodiment of the invention, the detection step S1 is to detect the windshield of the fan of the air conditioner and the current I_{At present}Before execution, the following steps are also included:

and detecting the continuous operation time of the fan.

After the air conditioner fan is started, the motor is in an unstable stage within a period of time for starting to operate, and if the rotating speed of the motor is detected in the unstable stage, errors are prone to occurring, therefore, as a preferred embodiment, the continuous operation time of the fan can be detected first, the air conditioner fan operates stably after being started for a preset time Tmin, T is generally 1, the fan of the existing air conditioner operates stably after being started for 1min, and the rotating speed of the motor tends to be stable.

In addition, in step S2, before determining whether to enter the self-cleaning mode, the following steps are performed: judging the current I_{At present}Less than or equal to the limiting current I_{Extreme limit}If the duration is greater than a preset duration threshold tmin, for example, t is 3, if so, it is determined whether to enter self-settingA cleaning mode; if not, the dust removal reminding is not carried out, and the air conditioner operates normally. So as to determine the current I_{At present}Less than or equal to the limiting current I_{Extreme limit}Whether the duration of (2) is greater than a preset duration threshold tmin is to ensure that the detection result of the dust accumulation is stable.

As a specific implementation manner, when performing dust removal reminding, a dust removal reminding signal which is easy to be recognized by a user, such as characters, light, sound, and the like, is used, and when performing dust removal reminding, the user uses the characters to remind, for example, a character of "serious dust accumulation" appears on a display panel for dust removal reminding; or using indicator lights for alerting, such as indicator lights that are on, or light from one color to another; or using sound to remind, such as using an alarm to give an alarm. In addition, the error code can be used for reminding, namely the error code is displayed on the panel of the indoor unit.

When the air conditioner judges whether the user needs to perform the self-cleaning mode, the user can select the self-cleaning mode through a self-cleaning mode button on a remote controller of the air conditioner, and after the user sees the dust removal prompt and presses the self-cleaning mode button, a controller of the air conditioner can make a judgment result of entering the self-cleaning mode, as shown in fig. 2, the control logic of the air conditioner dust removal control method is as follows:

and S10, starting the air conditioner.

And S20, operating the inner motor for 1 min.

S30, detecting the windshield and the current I_{At present}。

S40, judging the current I_{At present}Whether or not the current is less than or equal to the limiting current I under the corresponding windshield_{Extreme limit}At the same time, the current I is judged_{At present}Less than or equal to the limiting current I_{Extreme limit}If the duration of (2) is greater than 3min, if yes, go to step S50; if not, the air conditioner operates normally.

S50, judging whether to enter a self-cleaning mode, if so, entering a step S60; if not, the air conditioner operates normally.

And S60, operating a self-cleaning mode.

In step S60, the self-cleaning mode is specifically executed as shown in fig. 3.

S61, starting a dehumidification mode, wherein the starting time is a preset first time threshold t1, preferably t1 is 30min, so that sufficient water drops are gathered on the fins of the heat exchanger, the fins are cleaned under the action of self gravity, and the step S62 is executed after the cleaning is finished;

s62, starting a heating low-wind mode, wherein the starting time is a preset second time threshold t2, preferably t2 is 15min, heating a heat exchanger of the indoor unit, killing bacteria attached to the heat exchanger through high temperature, and entering the step S63 after the completion;

and S63, operating the single air-out mode, enabling the starting time to be a preset third time threshold t3, preferably t3 to be 2min, blowing out the heat remained in the heat exchanger of the indoor unit after the step S62, ending the process, and shutting down the unit.

By the control method, the dust accumulation condition of the air conditioner can be monitored, a user is reminded to start the self-cleaning mode when the air conditioner needs to be cleaned, the air conditioner use experience of the user is improved, and unnecessary electric energy waste is avoided. The intelligent air conditioner filth blockage degree judging method can intelligently judge the filth blockage degree of the air conditioner, improves the multifunctional usability of the air conditioner and reduces the power consumption under the condition of not increasing the cost.

In an embodiment of the present invention, there is further provided an air conditioner dust removal control apparatus, as shown in fig. 4, including: the device comprises a timer, a fan detection sensor, a dust removal reminder, a self-cleaning unit and a controller.

The timer is used for detecting the continuous operation time of the fan; the fan detection sensor is used for detecting the windshield and the current I of the fan_{At present}(ii) a The dust removal reminder is used for dust removal reminding, such as a display panel, an indicator light or an alarm, and can be used satisfactorily; the self-cleaning unit is used for cleaning and sterilizing the heat exchanger of the indoor unit of the air conditioner; the controller is used for controlling the wind turbine according to the continuous operation time of the wind turbine, the wind shield of the wind turbine and the current I_{At present}And judging whether the air conditioner carries out dust removal reminding or not and whether the air conditioner enters a self-cleaning mode or not.

The fan detection sensor includes a rotation speed sensor for detecting a rotation speed of the motor and a current detection sensor, and the current detection sensor is, for example, an electronic current transformer, an electromagnetic current sensor, an optical fiber current sensor, or the like, which is capable of detecting a current and is disposed on the fan. In addition, the self-cleaning unit comprises a relevant part for executing the corresponding instruction of the control program besides the execution control program of the self-cleaning mode.

In this embodiment, there is also provided an air conditioner, which includes a memory, a processor and a computer program stored in the memory and operable on the processor, wherein the processor implements the steps defined in the air conditioner dust removal control method described above when executing the computer program; and/or the dust removal control device of the air conditioner is included.

In the present embodiment, there is also provided a computer-readable storage medium having a computer program stored thereon, the computer program, when executed, implementing the steps of the air conditioner dust removal control method as set forth in the above present embodiment.

Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. In light of the above description, those skilled in the art should clearly recognize the air conditioner dust removal control method, apparatus, air conditioner and computer readable storage medium of the present invention.

It should be noted that unless specifically described or steps that must occur in sequence, the order of the steps is not limited to that listed above and may be varied or rearranged as desired. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.

It will be understood by those skilled in the art that all or part of the steps in the methods of the embodiments described above may be implemented by hardware instructions of a program, and the program may be stored in a computer-readable storage medium, where the storage medium includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), one-time Programmable Read-Only Memory (otp ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), compact disc Read-Only Memory (CD-ROM), or other disk memories, A tape memory, or any other medium readable by a computer that can be used to carry or store data.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.