CN111288608B - Control method and control device for filter screen filth blockage reminding and air conditioner - Google Patents

Control method and control device for filter screen filth blockage reminding and air conditioner Download PDF

Info

Publication number
CN111288608B
CN111288608B CN202010143113.2A CN202010143113A CN111288608B CN 111288608 B CN111288608 B CN 111288608B CN 202010143113 A CN202010143113 A CN 202010143113A CN 111288608 B CN111288608 B CN 111288608B
Authority
CN
China
Prior art keywords
filter screen
filth blockage
delta
judging
air conditioner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010143113.2A
Other languages
Chinese (zh)
Other versions
CN111288608A (en
Inventor
孙瑞松
颜景旭
朱文炳
袁前
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
Original Assignee
Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aux Air Conditioning Co Ltd, Ningbo Aux Electric Co Ltd filed Critical Aux Air Conditioning Co Ltd
Priority to CN202010143113.2A priority Critical patent/CN111288608B/en
Publication of CN111288608A publication Critical patent/CN111288608A/en
Application granted granted Critical
Publication of CN111288608B publication Critical patent/CN111288608B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/39—Monitoring filter performance
    • 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
    • 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
    • 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
    • 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
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature

Abstract

The invention provides a control method and a control device for filter screen filth blockage reminding and an air conditioner, wherein the control method comprises the following steps: after the air conditioner meets the preset condition, detecting a first preset time t1The absolute value delta Ti of the temperature difference between the indoor environment temperature and the indoor unit coil temperature per second; calculating a change value delta Ti' of delta Ti along with time; obtaining a reference value delta T of an absolute value of a temperature difference between the indoor environment temperature and the indoor unit coil temperatureSi and Δ TSReference value DeltaT of variation value of i with timeSi'; according to Δ Ti and Δ TSi, judging whether the filter screen is dirty or not, if so, then judging according to delta Ti' and delta TSAnd i' judging the filth blockage degree of the filter screen. The invention realizes the judgment of whether the filter screen is dirty or not through the temperature difference change of the inner ring and the inner disc within a certain time, and the method is simple and easy to realize; the control method of the invention can also realize the judgment of the filth blockage degree of the filter screen, more accurately and effectively remind the user of the current filth blockage degree of the filter screen, and improve the use experience of the user.

Description

Control method and control device for filter screen filth blockage reminding and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and a control device for filter screen filth blockage reminding and an air conditioner.
Background
When the air conditioner is operated, dust in the air can be brought to an air inlet of the indoor unit by the airflow and is deposited on the surface of the filter screen. After long-term operation, the filter screen can produce filth stifled, and along with the filth stifled more and more serious of filter screen, can reduce the intake, influence heat exchange efficiency and heat transfer effect, lead to air conditioner performance to reduce and even trigger the high load protection of interior machine.
Therefore, the filter screen needs to be detached and cleaned regularly, and the user is reminded of cleaning the filter screen regularly according to the dirty and blocked condition of the filter screen. However, the method for judging the filter screen filth blockage condition in the prior art cannot judge the filth blockage degree of the filter screen, and has low judgment precision, so that the method for reminding the user according to the filth blockage degree of the filter screen is inaccurate, and the use experience of the user is influenced.
Disclosure of Invention
The invention solves the problem that the method for reminding filth blockage of the filter screen in the prior art is inaccurate.
In order to solve the above problem, a first aspect of the present invention provides a method for controlling a filter screen filth blockage reminding, including:
after the air conditioner meets the preset condition, detecting a first preset time t1The absolute value delta Ti of the temperature difference between the indoor environment temperature and the indoor unit coil temperature per second;
calculating a change value delta Ti' of the absolute value delta Ti of the temperature difference between the indoor environment temperature and the indoor unit coil temperature along with time;
obtaining a reference value delta T of an absolute value of a temperature difference between the indoor environment temperature and the indoor unit coil temperatureSi and Δ TSReference value DeltaT of variation value of i with timeSi’；
According to Δ Ti and Δ TSi, judging whether the filter screen is dirty or not, if so, then judging according to delta Ti' and delta TSAnd i' judging the filth blockage degree of the filter screen.
With the above control method, the present invention is different from the prior art in that: the invention realizes the judgment of whether the filter screen is dirty or not through the change of the temperature difference between the indoor environment temperature and the inner disc temperature within a certain time, and the judgment method is simple and easy to realize, is more scientific and reduces the error; on the other hand, the control method of the invention can also realize the judgment of the filth blockage degree of the filter screen, more accurately and effectively remind the user of the current filth blockage degree of the filter screen, and improve the use experience of the user.
Further, the method is based on Δ Ti and Δ TSi judging whether the filter screen is dirty or not, if delta Ti is more than delta TSAnd i, judging that the filter screen is dirty and blocked.
According to the technical scheme of the embodiment, the air inlet amount is reduced and the heat exchange amount of the evaporator is reduced under the condition that the filter screen is dirty and blocked, so that the temperature difference between the indoor environment temperature and the inner disc temperature is increased, and therefore if delta Ti is larger than delta TSAnd i, judging that the filter screen is dirty and blocked.
Further, the method is based on Δ Ti' and Δ TSThe step i' of judging the filth blockage degree of the filter screen comprises the following steps: calculation of ki ═ 1-. DELTA.Ti'/DELTA.TSAnd i', and obtaining the median of ki to obtain the dirty blockage rate k0 of the filter screen.
According to the technical scheme of the embodiment, the filth blockage rate is calculated according to the change value of the temperature difference between the indoor environment temperature and the inner disc temperature along with the time, so that the influence of filth blockage of the filter screen on the inner disc temperature change is further reflected; and the influence of the error on the filth blockage rate can be reduced by taking the median.
Further, the method is based on Δ Ti' and Δ TSi' judging the filth blockage degree of the filter screen further comprises:
if the filth blockage rate k0 is less than or equal to 5%, judging that the filth blockage degree is slight filth blockage;
if the filth blockage rate k0 is less than or equal to 15% in the range of 5%, judging that the filth blockage degree is moderate filth blockage;
if the filth blockage rate k0 is less than or equal to 30% by 15%, judging that the filth blockage degree is severe filth blockage;
and if the filth blockage rate k0 is more than 30%, judging that the filth blockage degree is serious filth blockage.
According to the technical scheme of the embodiment, the filth blockage degree is divided into four grades, and grading is clear and reasonable.
Further, the method is based on Δ Ti' and Δ TSThe step of i' judging the filth blockage degree of the filter screen comprises the following steps: and outputting a filth blockage reminding signal of the filter screen.
According to the technical scheme of the embodiment, the filth blockage degree or the filth blockage rate of the filter screen can be fed back to a user in time, and the user can clean the filter screen in time conveniently.
Further, the preset condition is that the continuous operation time of the air conditioner under one wind gear is longer than a second preset time t2And then, the compressor of the air conditioner is shut down, and the shutdown time of the compressor reaches a third preset time t3And the inner fan of the air conditioner is continuously operated.
According to the technical scheme of the embodiment, better judgment conditions can be provided, so that the judgment of the filth blockage situation is more accurate.
Further, the first preset time t1In, 0.5t before the continuous operation of the inner fan of the air conditioner1And then off after a certain time.
According to the technical scheme of the embodiment, the influence of the inner fan on the temperature of the inner disc is realized, and the slow recovery of the temperature of the inner disc caused by dirty blockage of the filter screen is indirectly reflected.
Further, the reference value may be factory default setting or obtained again after the filter screen is completely cleaned each time.
According to the technical scheme of the embodiment, the delta T of the filter screen after being completely cleanedSi and Δ TSi' is different according to different running conditions and wind grades of the air conditioner, so that the air conditioner has extremely strong universality.
The second aspect of the present invention provides a control device, which adopts the above control method, and the control device includes the following modules:
an obtaining module, configured to obtain an absolute value Δ Ti of a temperature difference between an indoor environment temperature and an indoor unit coil temperature per second within a first preset time T1 and calculate a variation Δ Ti' of Δ Ti with time when the air conditioner satisfies a preset condition, and obtain a reference value Δ T of the absolute value of the temperature difference between the indoor environment temperature and the indoor unit coil temperatureSi and Δ TSReference value DeltaT of variation value of i with timeSi’；
A judging module for judging according to the delta Ti and the delta TSi, judging whether the filter screen is dirty or not, and determining whether the filter screen is dirty or not according to the delta Ti' and the delta TSi' judging the filth blockage degree of the filter screen;
and the sending module is used for sending the filth blockage prompting signal of the filter screen to a panel assembly of the air conditioner, a voice module and/or a mobile terminal of a user.
A third aspect of the present invention provides an air conditioner comprising a computer-readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and when executed, implements the control method described above.
Drawings
FIG. 1 is a schematic flow chart of a control method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing temperature changes of a filter screen in a brand new state and a dirty blocking state with time according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing the temperature difference between a brand new state and a dirty blocking state of a filter screen varying with time according to an embodiment of the present invention;
FIG. 4 is a schematic diagram showing the temperature difference change rate of the filter screen in a brand new state and a dirty blocking state as a function of time according to the embodiment of the present 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.
As shown in fig. 2, after a filter screen of an indoor unit of an air conditioner is dirty and blocked, the air intake is reduced, so that the heat exchange capacity of an evaporator is reduced, the temperature difference between the indoor environment temperature and the temperature of an indoor unit coil (namely, the temperature of the indoor unit evaporator coil) is increased, and the refrigeration and heating effects are affected; in view of this, an embodiment of the present invention provides a control method for a filth blockage reminder of a filter screen, which is applicable to an indoor unit of an air conditioner, where the indoor unit includes an indoor fan, a compressor, and an evaporator; specifically, as shown in fig. 1, the control method includes the steps of:
firstly, after the air conditioner meets the preset condition, detecting a first preset time t1The absolute value delta Ti of the temperature difference between the indoor environment temperature and the indoor unit coil temperature per second;
preferably, the preset condition is that the continuous operation time of the air conditioner under one wind gear is longer than a second preset time t2Then, the compressor of the air conditioner is shut down, an inner fan of the air conditioner continuously operates, and delta Ti starts to be detected; in another preferred embodiment, the preset condition satisfies the above condition and the compressor shutdown duration reaches a third preset time t3And (5s) detecting the delta Ti, so that the error of the residual refrigerating capacity of the air conditioner after low shutdown, which is caused by detection, is reduced. Wherein the wind shield can be a weak wind shield, a medium wind shield or a strong wind shield, and the second preset time t2The optimal selection time is 20min-1h, so that the temperature of the inner disc is stable when the compressor is shut down, better judgment conditions can be provided, and the judgment of the filth blockage condition is more accurate.
Secondly, calculating the change value delta Ti 'of the absolute value delta Ti of the temperature difference between the indoor environment temperature and the indoor unit coil temperature along with the time, wherein delta Ti' is the temperature difference change rate and embodies that the change rate is represented in a first preset time t1The speed of the temperature change of the inner disc;
then, a reference value delta T of the absolute value of the temperature difference between the indoor environment temperature and the indoor unit coil temperature is obtainedSi and Δ TSReference value DeltaT of variation value of i with timeSi'; the reference value Delta TSi and Δ TSi' can be factory default setting; preferably, the reference value Δ TSi and Δ TSi' can be retrieved after each complete cleaning of the filter screen, in particular Δ TSi and Δ TSi' is obtained by taking a lower limit value through multiple detection calculations after the filter screen is completely cleaned and the air conditioner meets the preset condition, and delta TSi and Δ TSThe i' is different according to different running states and wind grades of the air conditioner, so that the influence of running performance reduction of the air conditioner after long-time use on dirty blocking rate calculation is avoided, and the universality is strong.
Finally, according to ΔTi and Delta TSi, judging whether the filter screen is dirty or not, if so, then judging according to delta Ti' and delta TSAnd i' judging the filth blockage degree of the filter screen.
In the invention, the judgment on whether the filter screen is dirty or not is realized through the change of the temperature difference between the indoor environment temperature and the inner disc temperature within a certain time, and the judgment method is simple, easy to realize, more scientific and less in error; on the other hand, the control method of the invention can also realize the judgment of the filth blockage degree of the filter screen, more accurately and effectively remind the user of the current filth blockage degree of the filter screen, and improve the use experience of the user.
Preferably, the first preset time t1Preferably 60s, i in the delta Ti is an integer and is more than 0 and less than or equal to 60; at the first preset time t1In, 0.5t before the continuous operation of the inner fan of the air conditioner1Is closed after the time of (a), i.e. at the first preset time t1And the fan in the front 30s continuously operates, and the fan in the rear 30s is in a closed state. The temperature of the inner disc is slower to recover under the condition that the filter screen is dirty and blocked because the compressor is shut down and the inner fan continuously operates, so the temperature difference change rate also reflects the dirty and blocked condition of the filter screen; in the invention, the filth blockage condition of the filter screen is reflected by combining the temperature difference between the indoor environment temperature and the indoor coil pipe temperature and the temperature difference change rate, so that the filth blockage condition of the filter screen is judged more accurately.
Preferably, the dependence on Δ Ti and Δ TSi judging whether the filter screen is dirty or not, if delta Ti is more than delta TSi, judging that the filter screen is dirty and blocked, as shown in fig. 3, because the temperature difference between the indoor environment temperature and the inner disc temperature is increased due to the decrease of the air inlet amount and the heat exchange amount of the evaporator under the condition that the filter screen is dirty and blocked, if delta Ti is larger than delta TSAnd i, judging that the filter screen is dirty and blocked.
Preferably, said dependence on Δ Ti' and Δ TSThe step i' of judging the filth blockage degree of the filter screen comprises the following steps: calculation of ki ═ 1-. DELTA.Ti'/DELTA.TSAnd i', and obtaining the median of ki to obtain the dirty blockage rate k0 of the filter screen. As shown in FIG. 4, is Δ Ti' and Δ TSThe change curve of i 'along with time, the filth blockage rate is calculated through the change value of the temperature difference of the indoor environment temperature and the inner disc temperature along with time, and the influence of filth blockage of the filter screen on the temperature change of the inner disc is further reflected, wherein the temperature of the inner disc is slowly recovered under the filth blockage state of the filter screen, the absolute value of the temperature difference change rate delta Ti' is smaller, the temperature of the inner disc is rapidly recovered under the brand new state of the filter screen, and delta T isSThe absolute value of i' is larger; and the influence of the error on the filth blockage rate can be reduced by taking the median.
In particular, the variables Δ Ti' and Δ TSi' judging the filth blockage degree of the filter screen further comprises:
if the filth blockage rate k0 is less than or equal to 5%, judging that the filth blockage degree is slight filth blockage;
if the filth blockage rate k0 is less than or equal to 15% in the range of 5%, judging that the filth blockage degree is moderate filth blockage;
if the filth blockage rate k0 is less than or equal to 30% by 15%, judging that the filth blockage degree is severe filth blockage;
and if the filth blockage rate k0 is more than 30%, judging that the filth blockage degree is serious filth blockage.
The filth blockage degree of the filter screen is divided into four grades, and grading is clear and reasonable.
Preferably, said dependence on Δ Ti' and Δ TSThe step of i' judging the filth blockage degree of the filter screen comprises the following steps: and outputting a filth blockage reminding signal of the filter screen. The filth blockage reminding signal comprises a filth blockage degree and/or a filth blockage rate, specifically, the filth blockage reminding signal can be sent to a panel assembly of the air conditioner, a voice module and/or a mobile terminal of a user, the filth blockage degree and/or the filth blockage rate of the filter screen can be timely fed back to the user through modes such as display screen display, signal lamp reminding and voice reminding, and the filter screen can be conveniently cleaned by the user in time. In another embodiment, when the degree of the filth blockage is moderate filth blockage, severe filth blockage or severe filth blockage, the sending module sends the filth blockage reminding signal to a panel assembly of the air conditioner, a voice module and/or a mobile terminal of a user, and when the degree of the filth blockage is slight filth blockage, no feedback is given.
In order to execute the corresponding steps of the control method in the foregoing embodiment, a second aspect of the embodiment of the present invention provides an implementation manner of a control device, which employs the foregoing control method, and the control device includes the following modules:
an obtaining module, configured to obtain a first preset time t when the air conditioner satisfies a preset condition1Calculating the absolute value delta Ti of the temperature difference between the indoor environment temperature and the indoor unit coil temperature per second, calculating the change value delta Ti' of the delta Ti along with the time, and obtaining the reference value delta T of the absolute value of the temperature difference between the indoor environment temperature and the indoor unit coil temperatureSi and Δ TSReference value DeltaT of variation value of i with timeSi’；
A judging module for judging according to the delta Ti and the delta TSi, judging whether the filter screen is dirty or not, and determining whether the filter screen is dirty or not according to the delta Ti' and the delta TSi' judging the filth blockage degree of the filter screen;
and the sending module is used for sending the filth blockage prompting signal of the filter screen to a panel assembly of the air conditioner, a voice module and/or a mobile terminal of a user.
The air conditioner disclosed by the embodiment of the invention comprises a computer readable storage medium and a processor, wherein a computer program is stored in the computer readable storage medium, and when the computer program is read and operated by the processor, the control method is realized, the specific filth blockage degree of the filter screen of the indoor unit is more accurately judged through the change of the absolute value of the temperature difference between the ambient temperature of the indoor unit and the temperature of the coil pipe of the indoor unit and the change of the temperature difference change rate, and the user can be reminded to clean the filter screen in time.
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.

Claims (8)

1. A control method for reminding filth blockage of a filter screen is characterized by comprising the following steps:
after the air conditioner meets the preset condition, detecting a first preset time t1Indoor ambient temperature per second and indoor unitThe absolute value of the temperature difference delta Ti of the temperature of the coil pipe; the preset condition is that the continuous operation time of the air conditioner under one wind shield is longer than a second preset time t2Then the compressor of the air conditioner is shut down, and the shutdown time of the compressor reaches a third preset time t3And the inner fan of the air conditioner continuously operates; the first preset time t1In, 0.5t before the continuous operation of the inner fan of the air conditioner1Is closed after the time;
calculating a change value delta Ti' of the absolute value delta Ti of the temperature difference between the indoor environment temperature and the indoor unit coil temperature along with time;
obtaining a reference value delta T of an absolute value of a temperature difference between the indoor environment temperature and the indoor unit coil temperatureSi and Δ TSReference value DeltaT of variation value of i with timeSi’；
According to Δ Ti and Δ TSi, judging whether the filter screen is dirty or not, if so, then judging according to delta Ti' and delta TSAnd i' judging the filth blockage degree of the filter screen.
2. The control method of claim 1, wherein the function is based on Δ Ti and Δ TSi judging whether the filter screen is dirty or not, if delta Ti is more than delta TSAnd i, judging that the filter screen is dirty and blocked.
3. Control method according to claim 1 or 2, characterized in that said dependence on Δ Ti' and Δ T isSThe step i' of judging the filth blockage degree of the filter screen comprises the following steps: calculation of ki =1- Δ Ti'/Δ TSAnd i', and obtaining the median of ki to obtain the dirty blockage rate k0 of the filter screen.
4. A control method according to claim 3, characterized in that said functions are based on Δ Ti' and Δ TSi' judging the filth blockage degree of the filter screen further comprises:
if the filth blockage rate k0 is less than or equal to 5%, judging that the filth blockage degree is slight filth blockage;
if the filth blockage rate k0 is less than or equal to 15% in the range of 5%, judging that the filth blockage degree is moderate filth blockage;
if the filth blockage rate k0 is less than or equal to 30% by 15%, judging that the filth blockage degree is severe filth blockage;
and if the filth blockage rate k0 is more than 30%, judging that the filth blockage degree is serious filth blockage.
5. A control method according to claim 3, characterized in that said functions are based on Δ Ti' and Δ TSThe step of i' judging the filth blockage degree of the filter screen comprises the following steps: and outputting a filth blockage reminding signal of the filter screen.
6. The control method according to claim 1, wherein the reference value may be factory default or may be obtained again each time the filter screen is completely cleaned.
7. A control apparatus characterized by employing the control method according to any one of claims 1 to 6, the control apparatus comprising the following modules:
an obtaining module, configured to obtain an absolute value Δ Ti of a temperature difference between an indoor environment temperature and an indoor unit coil temperature per second within a first preset time T1 and calculate a variation Δ Ti' of Δ Ti with time when the air conditioner satisfies a preset condition, and obtain a reference value Δ T of the absolute value of the temperature difference between the indoor environment temperature and the indoor unit coil temperatureSi and Δ TSReference value DeltaT of variation value of i with timeSi'; the preset condition is that the continuous operation time of the air conditioner under one wind shield is longer than a second preset time t2Then the compressor of the air conditioner is shut down, and the shutdown time of the compressor reaches a third preset time t3And the inner fan of the air conditioner continuously operates; the first preset time t1In, 0.5t before the continuous operation of the inner fan of the air conditioner1Is closed after the time;
a judging module for judging according to the delta Ti and the delta TSi, judging whether the filter screen is dirty or not, and determining whether the filter screen is dirty or not according to the delta Ti' and the delta TSi' judging the filth blockage degree of the filter screen;
and the sending module is used for sending the filth blockage prompting signal of the filter screen to a panel assembly of the air conditioner, a voice module and/or a mobile terminal of a user.
8. An air conditioner comprising a computer-readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the control method according to any one of claims 1 to 6.
CN202010143113.2A 2020-03-04 2020-03-04 Control method and control device for filter screen filth blockage reminding and air conditioner Active CN111288608B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010143113.2A CN111288608B (en) 2020-03-04 2020-03-04 Control method and control device for filter screen filth blockage reminding and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010143113.2A CN111288608B (en) 2020-03-04 2020-03-04 Control method and control device for filter screen filth blockage reminding and air conditioner

Publications (2)

Publication Number Publication Date
CN111288608A CN111288608A (en) 2020-06-16
CN111288608B true CN111288608B (en) 2021-11-09

Family

ID=71025723

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010143113.2A Active CN111288608B (en) 2020-03-04 2020-03-04 Control method and control device for filter screen filth blockage reminding and air conditioner

Country Status (1)

Country Link
CN (1) CN111288608B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112179823A (en) * 2020-08-31 2021-01-05 珠海格力电器股份有限公司 Filth blockage detection method, device, equipment and storage medium
CN113483459A (en) * 2021-06-17 2021-10-08 宁波奥克斯电气股份有限公司 Control method for filter screen cleaning reminding function and air conditioner
CN113654188A (en) * 2021-08-13 2021-11-16 珠海格力电器股份有限公司 Air conditioner control method
CN114383262B (en) * 2021-12-20 2023-06-16 珠海格力电器股份有限公司 Method for detecting cleanliness of air conditioner indoor unit and air conditioner thereof
CN116045452A (en) * 2023-01-06 2023-05-02 宁波奥克斯电气股份有限公司 Method and system for detecting filth blockage of filter screen of air conditioner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102748837B (en) * 2012-07-28 2016-04-20 Tcl空调器(中山)有限公司 A kind of air-conditioner and filter screen dirtying thereof block up automatic reminding method
CN104566855B (en) * 2014-12-22 2017-09-08 珠海格力电器股份有限公司 Filter screen dirtying blocks up method for early warning
CN108050650B (en) * 2017-11-23 2020-04-03 广东美的制冷设备有限公司 Air conditioner filth blockage detection method and device and computer readable storage medium
WO2019138534A1 (en) * 2018-01-12 2019-07-18 三菱電機株式会社 Air-conditioning device
CN109631231B (en) * 2018-12-14 2020-12-22 奥克斯空调股份有限公司 Accumulated dust judging device and method and air conditioner
CN109827290A (en) * 2019-03-04 2019-05-31 奥克斯空调股份有限公司 Control method, device and the air conditioner of dirty stifled prompting

Also Published As

Publication number Publication date
CN111288608A (en) 2020-06-16

Similar Documents

Publication Publication Date Title
CN111288608B (en) Control method and control device for filter screen filth blockage reminding and air conditioner
CN106705376B (en) Self-cleaning method for indoor unit of air conditioner
CN110762744B (en) Automatic prompting method for cleaning filter screen, control device, storage medium and air conditioner
US8940078B2 (en) Air filter sensor and alarm
CN107036256A (en) The control method of delivery temperature, the control device of delivery temperature and air conditioner
CN109724225B (en) Method for improving heat exchange performance of outdoor unit of direct-current variable-frequency air conditioner based on temperature difference detection
CN107702283B (en) Self-cleaning control method for air conditioner
CN106382709A (en) Method and system for detecting filth blockage of filter screen of air conditioner and air conditioner
WO2015139445A1 (en) Detection apparatus and method for dustproof mesh in electronic device
CN111536651B (en) Air conditioner water fullness prevention control method and device, air conditioner and computer readable storage medium
CN111156648B (en) Cleaning control method of air conditioner and air conditioner
CN106871355A (en) The control method and system of the auxiliary heat of heat pump type air conditioner, heat pump type air conditioner electricity
CN111288609B (en) Air conditioner filter screen filth blockage detection method and device, air conditioner and storage medium
CN111043711A (en) Air conditioner filter screen filth blockage detection method and device and air conditioner
CN109724224A (en) The method of raising DC frequency converting air-conditioner outdoor unit heat exchange property based on power detection
WO2020187233A1 (en) Self-cleaning control method for air conditioner
CN110749036B (en) Method for determining blockage degree of dust filter screen of air conditioner and air conditioner
CN111023423B (en) Control method and device for electronic expansion valve of air conditioner, medium and air conditioner
WO2020187236A1 (en) Self-cleaning control method for air conditioner
CN114234364A (en) Air conditioner filter screen filth blockage judging method and device and air conditioner
CN109341006B (en) Variable frequency air conditioner control device and control method
CN113280487B (en) Self-cleaning control method and device of air conditioner and computer readable storage medium
WO2019242529A1 (en) Control method for air conditioner
CN114791191B (en) Refrigerator, defrosting control method and device thereof and computer readable storage medium
TW201336465A (en) Vacuum device with warning function and warning method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant