CN113623817B - Control method of air conditioner and air conditioner - Google Patents

Control method of air conditioner and air conditioner Download PDF

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Publication number
CN113623817B
CN113623817B CN202110893561.9A CN202110893561A CN113623817B CN 113623817 B CN113623817 B CN 113623817B CN 202110893561 A CN202110893561 A CN 202110893561A CN 113623817 B CN113623817 B CN 113623817B
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air conditioner
temperature
inner ring
filter screen
limit
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CN113623817A (en
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谢容
郑良剑
伍衍亮
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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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
    • F24F11/32—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
    • F24F11/62—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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a control method of an air conditioner and the air conditioner, wherein the control method of the air conditioner comprises the steps of carrying out filth blockage detection on a filter screen of the air conditioner; the filth blockage detection method of the filter screen comprises the following steps of after a compressor of the air conditioner continuously operates for a first preset time period and after an indoor fan of the air conditioner stably operates for a second preset time period in a first preset wind shield: detecting the indoor environment temperature and the inner pipe temperature of the air conditioner in real time; and in a third continuous preset time period, comparing the indoor environment temperature with the first limit temperature, comparing the indoor environment temperature with the set temperature of the air conditioner, comparing the inner pipe temperature with the second limit temperature, and judging whether the filter screen is dirty or not or whether the filter screen is shielded by foreign matters or not according to each comparison result. The filth blockage detection method does not need to add a detection part, and solves the problem that the air conditioner is complicated in structure due to the fact that the air conditioner in the prior art detects whether the filter screen is filth-blocked or not.

Description

Control method of air conditioner and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner and the air conditioner.
Background
As the service time of the air conditioner is increased, dust can be accumulated on the filter screen, so that the filter screen is dirty and blocked; the air outlet quantity and the heat exchange quantity of the air conditioner can be reduced after the filter screen is dirty and blocked, the air outlet quality of the air conditioner can also be reduced, and the service performance of the air conditioner is further influenced.
In the prior art, whether the filter screen is dirty or not is mainly detected by additionally arranging a sensor and other detection devices, and the detection mode adds structural parts of the air conditioner so that the structure of the air conditioner is complicated.
Moreover, the air conditioner in the prior art does not have the function of prompting the filth blockage of the filter screen of a user; in addition, the air conditioner in the prior art lacks a compensation scheme for temporary coping before a user cleans the filter screen.
Disclosure of Invention
The invention mainly aims to provide an air conditioner control method and an air conditioner, and aims to solve the problem that the structure of the air conditioner is complicated in the mode that the air conditioner in the prior art detects whether a filter screen is dirty or blocked.
In order to achieve the above object, according to one aspect of the present invention, there is provided a control method of an air conditioner, including performing filth blockage detection on a filter screen of the air conditioner; after a compressor of the air conditioner continuously operates for a first preset time period t1 and an indoor fan of the air conditioner stably operates for a second preset time period t2 at a first preset windshield, the filth blockage detection method of the filter screen comprises the following steps: real-time detection of indoor ambient temperature T Inner ring And inner pipe temperature T of air conditioner Inner pipe (ii) a Comparing the indoor ambient temperature T during a third consecutive predetermined period of time T3 Inner ring And a first defined temperature T Limit 1 Magnitude of (1), comparison of indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up Magnitude of (1), comparison of inner tube temperature T Inner pipe And a second defined temperature T Limit 2 And judging whether the filter screen is dirty or not or whether the filter screen is shielded by foreign matters or not according to each comparison result.
Further, the indoor environment temperature T is detected in real time Inner ring And inner tube temperature T Inner pipe Then, the filth blockage detection method of the filter screen comprises the following steps: acquiring the running state of the air conditioner; the operation state comprises a heating state and a cooling state; acquiring the running state of the air conditioner; the operation state comprises a heating state and a cooling state; when the air conditioner is in a cooling state, and in a continuous third preset time period T3, when the indoor environment temperature T Inner ring Greater than a first defined temperature T Limit 1 And when the indoor ambient temperature T is Inner ring Greater than the set temperature T of the air conditioner Setting up And when the temperature T of the inner tube is Inner tube Less than a second defined temperature T Limit 2 Judging that the filter screen is in a dirty blocking state or a state of being shielded by foreign matters; wherein the first defined temperature T Limit 1 Greater than the second limitConstant temperature T Limit 2 (ii) a When the air conditioner is in a heating state and in a continuous third preset time period T3, when the indoor environment temperature T Inner ring Less than a first defined temperature T Limit 1 And when the indoor ambient temperature T is Inner ring Less than the set temperature T of the air conditioner Setting up And when the temperature T of the inner tube is Inner pipe Greater than a second defined temperature T Limit 2 Judging that the filter screen is in a dirty blocking state or a state of being shielded by foreign matters; wherein the first defined temperature T Limit 1 Less than a second defined temperature T Limit 2 。
Further, after the filter screen is determined to be in the filthy blockage state or the state of being blocked by the foreign matter, the filthy blockage detection method of the filter screen further comprises the following steps: acquiring the accumulated running time of the air conditioner, and comparing the accumulated running time of the air conditioner with the preset running time M; when the accumulated running time of the air conditioner is less than the preset running time M, judging that the filter screen is in a state of being shielded by foreign matters; and when the accumulated running time of the air conditioner is greater than or equal to the preset running time M, judging that the filter screen is in a filth blockage state.
Further, after the filth blockage detection is performed on the filter screen, the control method of the air conditioner further comprises the following steps: when the filter screen is judged to be shielded by the foreign matters, controlling an alarm module of the air conditioner to send out a first alarm signal to remind a user of removing the foreign matters shielding the filter screen; and when the filter screen is judged to be in the filth blockage state, controlling the air conditioner to enter a self-adaptive compensation mode.
Further, after the air conditioner enters the adaptive compensation mode, the operation step S1 of the air conditioner includes: increasing the running windshield of the indoor fan, and enabling the indoor fan to run for a fourth preset time period t4 on the increased windshield; the running windshield of the indoor fan is controlled to be increased by at least one gear; or increasing the rotating speed of the indoor fan and enabling the indoor fan to operate at the increased rotating speed for a fifth preset time period t5; detecting indoor ambient temperature T Inner ring And a first defined temperature T Limit 1 Difference between, indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up And the inner tube temperature T Inner pipe And a second defined temperature T Limit 2 Whether or not the difference therebetween is all reduced。
Further, the control method of the air conditioner further comprises the following steps: repeating the operation step S1 of the air conditioner at least once; when indoor ambient temperature T Inner ring And a first defined temperature T Limit 1 Difference therebetween, indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up Difference therebetween and inner tube temperature T Inner pipe And a second defined temperature T Limit 2 The difference between the two is reduced, and when the indoor ambient temperature T is lower Inner ring And a first defined temperature T Limit 1 The difference between the first and second predetermined difference is less than or equal to the first predetermined difference, the indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up The difference between the two is less than or equal to a second preset difference, the inner tube temperature T Inner pipe And a second defined temperature T Limit 2 When the difference value is less than or equal to a third preset difference value, judging that the self-adaptive compensation of the air conditioner is effective; when the indoor ambient temperature T Inner ring And a first defined temperature T Limit 1 Difference between, indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up Difference therebetween and inner tube temperature T Inner pipe And a second defined temperature T Limit 2 The difference therebetween is not reduced, or when the indoor ambient temperature T is reduced Inner ring And a first defined temperature T Limit 1 The reduced value of the difference between the first and second preset values is less than the first preset value, and the indoor environment temperature T Inner ring And the set temperature T of the air conditioner Setting up The reduced value of the difference between the two is less than the second preset value, the temperature T of the inner tube Inner tube And a second defined temperature T Limit 2 And if the reduction value of the difference value is smaller than the third preset value, controlling the air conditioner to stop the self-adaptive compensation and controlling an alarm module of the air conditioner to send out a second alarm signal so as to remind a user to clean the filter screen.
Further, after the air conditioner enters the adaptive compensation mode, the operation step S2 of the air conditioner includes: acquiring the running state of the air conditioner; the operation state comprises a heating state and a cooling state; when the air conditioner is in a refrigerating state, the set temperature of the air conditioner is controlled to be reduced by the first preset temperature, and the air conditioner is operated at the reduced set temperature for the sixth preset timeA segment t6; detecting indoor ambient temperature T Inner ring Whether to decrease; when the air conditioner is in a heating state, controlling the set temperature of the air conditioner to increase by a second preset temperature, and enabling the air conditioner to operate at the increased set temperature for a seventh preset time period t7; detecting indoor ambient temperature T Inner ring Whether it is increased.
Further, the control method of the air conditioner further comprises the following steps: repeating the operation step S2 of the air conditioner at least once; when the air conditioner is in a cooling state, when the indoor ambient temperature T Inner ring Is reduced and when the indoor ambient temperature T is Inner ring When the reduction value is larger than the fourth preset value, judging that the self-adaptive compensation of the air conditioner is effective; when the indoor ambient temperature T Inner ring Not reduced, or when the ambient temperature T in the room is Inner ring When the reduction value is smaller than the fourth preset value, controlling the air conditioner to stop the self-adaptive compensation and controlling an alarm module of the air conditioner to send out a second alarm signal to remind a user to clean the filter screen; when the air conditioner is in heating state, when the indoor environment temperature T Inner ring Increase and when the indoor ambient temperature T Inner ring When the increment value of the air conditioner is greater than the fifth preset value, judging that the self-adaptive compensation of the air conditioner is effective; when the indoor ambient temperature T Inner ring Not increased or when the indoor ambient temperature T Inner ring When the increase value is smaller than the fifth preset value, the air conditioner is controlled to stop the self-adaptive compensation, and an alarm module of the air conditioner is controlled to send out a second alarm signal to remind a user to clean the filter screen.
According to another aspect of the present invention, there is provided an air conditioner adapted to the control method described above; the air conditioner includes: the detection head of the first temperature sensing bulb is used for being arranged in an indoor environment so as to detect the temperature of the indoor environment; the detection head of the second temperature sensing bulb is arranged on an inner pipe of an indoor unit of the air conditioner so as to detect the temperature of the inner pipe of the air conditioner; the main chip, the first temperature sensing bulb and the second temperature sensing bulb are electrically connected with the main chip to receive temperature information sensed by the first temperature sensing bulb and the second temperature sensing bulb.
Further, the air conditioner includes: and the alarm module is electrically connected with the main chip, the main chip is used for sending alarm information to the alarm module according to the received temperature information, and the alarm module sends an alarm signal according to the received alarm information.
Further, the air conditioner includes: the control module is electrically connected with the main chip and the indoor fan of the air conditioner, the main chip is used for sending driving information to the control module according to the received temperature information, and the control module drives the indoor fan to operate according to the received driving information.
By applying the technical scheme, in the control method of the air conditioner, the control method of the air conditioner comprises the steps of performing filth blockage detection on a filter screen of the air conditioner; after a compressor of the air conditioner continuously operates for a first preset time period t1 and an indoor fan of the air conditioner stably operates for a second preset time period t2 at a first preset windshield, the filth blockage detection method of the filter screen comprises the following steps: real-time detection of indoor ambient temperature T Inner ring And inner pipe temperature T of air conditioner Inner pipe (ii) a Comparing the indoor ambient temperature T during a third, consecutive predetermined period of time T3 Inner ring And a first defined temperature T Limit 1 Magnitude of (2), comparison of indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up Magnitude of (1), comparison of inner tube temperature T Inner pipe And a second defined temperature T Limit 2 And whether the filter screen is dirty or blocked by foreign matters is judged according to each comparison result, namely according to the indoor environment temperature T Inner ring And a first defined temperature T Limit 1 Comparison result of (1), indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up And the inner tube temperature T Inner pipe And a second defined temperature T Limit 2 And judging whether the filter screen is dirty or not or whether the filter screen is shielded by foreign matters or not according to the comparison result.
The filth blockage detection method of the filter screen can realize filth blockage detection of the filter screen by utilizing the components of the air conditioner, namely, the detection components do not need to be added, so that the whole structure of the air conditioner is simpler, and the problem that the structure of the air conditioner is complicated due to the filth blockage detection mode of the air conditioner in the prior art is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow chart illustrating a filth blockage detection method of a filter screen of an air conditioner in a cooling state according to the present invention;
fig. 2 is a schematic flow chart illustrating a filth blockage detection method of a filter screen of an air conditioner in a heating state according to the present invention;
fig. 3 is a flow chart illustrating a first adaptive compensation method of an air conditioner according to the present invention;
fig. 4 is a flowchart illustrating a second adaptive compensation method of an air conditioner according to the present invention;
fig. 5 is a schematic diagram illustrating the working principle of the main chip, the first thermal bulb, the second thermal bulb, the alarm module and the control module of the air conditioner according to the present invention.
Wherein the figures include the following reference numerals:
10. a main chip; 20. a first bulb; 30. a second bulb; 40. an alarm module; 50. and a control module.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Referring to fig. 1 to 4, the method for controlling an air conditioner includes performing filth blockage detection on a filter screen of the air conditioner; after a compressor of the air conditioner continuously operates for a first preset time period t1 and an indoor fan of the air conditioner stably operates for a second preset time period t2 at a first preset windshield, the filth blockage detection method of the filter screen comprises the following steps: real-time detection of indoor ambient temperature T Inner ring And inner pipe temperature T of air conditioner Inner pipe (ii) a Comparing the indoor ambient temperature T during a third consecutive predetermined period of time T3 Inner ring And a first defined temperature T Limit 1 Magnitude of (1), comparison of indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up Magnitude of (1), comparison of inner tube temperature T Inner tube And a second defined temperature T Limit 2 And whether the filter screen is dirty or blocked by foreign matters is judged according to each comparison result, namely according to the indoor environment temperature T Inner ring And a first defined temperature T Limit 1 Comparison result of (1), indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up And the inner tube temperature T Inner pipe And a second defined temperature T Limit 2 And judging whether the filter screen is dirty or not or whether the filter screen is shielded by foreign matters or not according to the comparison result.
In the control method of the air conditioner, the filth blockage detection method of the filter screen can realize filth blockage detection of the filter screen by utilizing the components of the air conditioner, namely, the detection components do not need to be additionally arranged, so that the integral structure of the air conditioner is simpler, and the problem that the structure of the air conditioner is complicated due to the fact that the mode of detecting whether the filter screen is filth blocked by the air conditioner in the prior art is solved.
It should be noted that, when the filter screen is covered by a foreign object (for example, a curtain, a sofa, etc.) or excessive dust, the passing area of the filter screen is affected, and further the ventilation volume of the filter screen is reduced, that is, the air output volume of the air conditioner is reduced, so that the indoor environment does not reach the set temperature under the action of the air conditioner, and at this time, the filter screen is in a state of being blocked by the foreign object or a dirty and blocked state (that is, a state of being covered by excessive dust), so the "dirty and blocked detection of the filter screen" mentioned in this application refers to detecting whether the filter screen is covered by the foreign object or excessive dust.
It should be noted that, after the compressor continuously operates for a first predetermined time period t1 and after the indoor fan stably operates for a second predetermined time period t2 with a first predetermined damper, the temperature of the indoor environment tends to be stable; alternatively, t1 is greater than or equal to 10 minutes.
In the present embodiment, the indoor ambient temperature T is detected in real time Inner ring And inner tube temperature T Inner pipe Then, the filth blockage detection method of the filter screen comprises the following steps: acquiring the running state of the air conditioner; the operation state comprises a heating state and a cooling state.
As shown in fig. 1, when the air conditioner is in a cooling state, and during a continuous third predetermined time period T3, when the indoor ambient temperature T is Inner ring Greater than a first defined temperature T Limit 1 And when the indoor ambient temperature T is Inner ring Greater than the set temperature T of the air conditioner Setting up And when the temperature T of the inner tube is Inner pipe Less than a second defined temperature T Limit 2 When is at T Inner ring >T Limit 1 And when T is Inner ring >T Setting up And when T is Inner tube <T Limit 2 Judging that the filter screen is in a dirty blocking state or a state of being shielded by foreign matters; at the moment, the temperature of the inner pipe is very low, but the indoor environment temperature is higher and cannot reach the set temperature value all the time, namely, the circulation of the air volume of the air conditioner is judged to be poor, so that cold air of the air conditioner cannot be blown out; wherein the first defined temperature T Limit 1 Greater than a second defined temperature T Limit 2 。
As shown in fig. 2, when the air conditioner is in a heating state, and during a third predetermined period of time T3, the indoor ambient temperature T Inner ring Less than a first defined temperature T Limit 1 And when the indoor environment temperature T Inner ring Less than the set temperature T of the air conditioner Setting up And when the temperature of the inner tube is T Inner pipe Greater than a second defined temperature T Limit 2 When is at T Inner ring <T Limit 1 And when T is Inner ring <T Setting up And when T is Inner pipe >T Limit 2 Judging that the filter screen is in a dirty blocking state or a state of being shielded by foreign matters; at the moment, the temperature of the inner pipe is very high, but the indoor environment temperature is lower and cannot reach the set temperature value all the time, namely, the circulation of the air volume of the air conditioner is judged to be poor, so that the hot air of the air conditioner cannot be blown out; wherein the first defined temperature T Limit 1 Less than a second defined temperature T Limit 2 。
The first limit temperature T is set to Limit 1 And a second defined temperature T Limit 2 The air conditioner air quantity control method is determined according to the size of the filter screen, the arrangement position of the filter screen and the type capacity of the air conditioner, and specific numerical values need to be confirmed according to a characteristic table when cold air or hot air in the air conditioner cannot be blown out due to poor air quantity circulation of the air conditioner. Alternatively, when the air conditioner is in a cooling state, T Limit 1 -T Limit 2 Not less than 16 ℃; e.g. T Limit 1 Is 27 degrees, T Limit 2 Is 11 degrees.
In this embodiment, as shown in fig. 1 and fig. 2, after determining that the filter screen is in the filth blockage state or in the state blocked by the foreign object, the filth blockage detection method for the filter screen further includes: acquiring the accumulated running time of the air conditioner, and comparing the accumulated running time of the air conditioner with the preset running time M; when the accumulated running time of the air conditioner is less than the preset running time M, judging that the filter screen is in a state of being shielded by foreign matters; and when the accumulated running time of the air conditioner is greater than or equal to the preset running time M, judging that the filter screen is in a filth blockage state.
It should be noted that the preset operation time M is related to the size of the filter screen, the setting position of the filter screen, the use environment of the air conditioner, and other factors. Optionally, the preset running time M is greater than or equal to 60 days,
in this embodiment, after performing the filth blockage detection on the filter screen, the method for controlling the air conditioner further includes: when the filter screen is judged to be shielded by the foreign matters, controlling an alarm module of the air conditioner to send out a first alarm signal so as to remind a user to remove the foreign matters shielding the filter screen; and when the filter screen is judged to be in the filth blockage state, controlling the air conditioner to enter a self-adaptive compensation mode.
It should be noted that the adaptive compensation mode of the air conditioner means that after the filter screen is judged to be in the dirty and blocked state, the air conditioner compensates the reduction of the air output caused by the dirty and blocked filter screen by adjusting the operation mode of the air conditioner, and if the air conditioner can compensate the reduction of the air output through the adaptive compensation, that is, the air conditioner can make the indoor environment reach the required temperature through the adaptive compensation, which indicates that the dirty and blocked condition of the filter screen is not particularly serious, and the filter screen is not required to be cleaned temporarily; if the air conditioner can not realize the compensation of the air output reduction through the self-adaptive compensation, namely the indoor environment can not reach the required temperature under the self-adaptive compensation of the air conditioner, the dirty and blocked condition of the filter screen is serious, and the cleaning treatment is required.
In this embodiment, as shown in fig. 3, a first compensation method of the air conditioner is as follows: after the air conditioner enters the adaptive compensation mode, the operation step S1 of the air conditioner includes: increasing an operation windshield of the indoor fan, and operating the indoor fan for a fourth preset time period t4 by the increased windshield; wherein, the running windshield of the indoor fan is controlled to increase at least one gear; or increasing the rotating speed of the indoor fan and enabling the indoor fan to operate at the increased rotating speed for a fifth preset time period t5, so that the circulation capacity of air in the air conditioner can be increased, and the air output of the air conditioner is increased; detecting indoor ambient temperature T Inner ring And a first defined temperature T Limit 1 Difference therebetween, indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up And the temperature T of the inner tube Inner pipe And a second defined temperature T Limit 2 Whether the difference between them is all decreasing.
Specifically, the control method of the air conditioner further includes: and repeating the operation step S1 of the air conditioner at least once, namely continuously increasing the operation windshield of the indoor fan or continuously increasing the rotating speed of the indoor fan within the capacity range of the indoor fan so as to increase the compensation strength.
When the indoor ambient temperature T Inner ring And a first limit temperatureDegree T Limit 1 Difference between, indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up Difference therebetween and inner tube temperature T Inner tube And a second defined temperature T Limit 2 The difference between the two is reduced, and when the indoor ambient temperature T is lower Inner ring And a first defined temperature T Limit 1 The difference between the first and second predetermined difference is less than or equal to the first predetermined difference, the indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up The difference between the two is less than or equal to a second preset difference, the inner tube temperature T Inner tube And a second defined temperature T Limit 2 When the difference value is less than or equal to the third preset difference value, the adaptive compensation of the air conditioner is judged to be effective, and the air conditioner is controlled to stop the adaptive compensation.
When the indoor ambient temperature T Inner ring And a first defined temperature T Limit 1 Difference therebetween, indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up Difference therebetween and inner tube temperature T Inner pipe And a second defined temperature T Limit 2 If the difference between the first and second values is not reduced, namely the adaptive compensation of the air conditioner is not effective, the air conditioner is controlled to stop the adaptive compensation and an alarm module of the air conditioner is controlled to send out a second alarm signal to remind a user to clean the filter screen.
Or when the indoor ambient temperature T Inner ring And a first defined temperature T Limit 1 A reduced value of the difference between the first and second preset values is less than a first preset value, and the indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up The reduced value of the difference between the two is less than the second preset value, the temperature T of the inner tube Inner pipe And a second defined temperature T Limit 2 And if the reduction value of the difference values is smaller than a third preset value, namely the reduction amplitude of each difference value is very small, namely the self-adaptive compensation of the air conditioner is not effective, controlling the air conditioner to stop the self-adaptive compensation and controlling an alarm module of the air conditioner to send out a second alarm signal to remind a user of cleaning the filter screen.
In this embodiment, as shown in fig. 4, a second compensation method of the air conditioner is as follows: after the air conditioner enters the adaptive compensation mode, the operation step S2 of the air conditioner includes: acquiring the running state of the air conditioner; the operation state comprises a heating state and a cooling state.
When the air conditioner is in a refrigerating state, the set temperature of the air conditioner is controlled to be reduced by a first preset temperature, and the air conditioner is operated at the reduced set temperature for a sixth preset time period t6 to compensate the problems that the air output is small and the indoor environment temperature is difficult to reduce; detecting indoor ambient temperature T Inner ring Whether or not to decrease. Optionally, the first predetermined temperature is 1 degree.
When the air conditioner is in a heating state, controlling the set temperature of the air conditioner to increase the second preset temperature, and enabling the air conditioner to operate at the increased set temperature for a seventh preset time period t7 so as to compensate the problems that the air output is small and the indoor environment temperature is difficult to rise; detecting indoor ambient temperature T Inner ring Whether it is increased. Optionally, the second predetermined temperature is 1 degree.
Specifically, the control method of the air conditioner further includes: and repeating the operation step S2 of the air conditioner at least once, namely, continuously reducing or increasing the set temperature within a proper temperature range to increase the compensation intensity.
When the air conditioner is in a cooling state, when the indoor ambient temperature T Inner ring Is reduced and when the indoor ambient temperature T is Inner ring When the reduction value is larger than the fourth preset value, judging that the self-adaptive compensation of the air conditioner is effective, and controlling the air conditioner to stop the self-adaptive compensation; when the indoor ambient temperature T Inner ring Not reduced, or when the ambient temperature T in the room is Inner ring Is less than the fourth predetermined value, i.e. the indoor ambient temperature T Inner ring If the reduction amplitude is very small, the air conditioner is controlled to stop the self-adaptive compensation and an alarm module of the air conditioner is controlled to send out a second alarm signal to remind a user to clean the filter screen;
when the air conditioner is in heating state, when the indoor environment temperature T Inner ring Increase and when the indoor ambient temperature T Inner ring When the increase value is larger than the fifth preset value, judging that the self-adaptive compensation of the air conditioner is effective, and controlling the air conditioner to stop the self-adaptive compensation; when indoor ambient temperature T Inner ring Not increased or when the indoor ambient temperature T Inner ring Increase of (2)When the value is less than the fifth preset value, namely the indoor environment temperature T Inner ring If the increase amplitude is small, the air conditioner is controlled to stop the self-adaptive compensation, and an alarm module of the air conditioner is controlled to send out a second alarm signal to remind a user to clean the filter screen.
Alternatively, the sixth predetermined period of time t6 is 30 minutes and the seventh predetermined period of time t7 is 30 minutes.
In this embodiment, the present invention further provides an air conditioner, which is suitable for the control method; as shown in fig. 5, the air conditioner includes: the first temperature sensing bulb 20, the detection head of the first temperature sensing bulb 20 is used for being arranged in the indoor environment to detect the indoor environment temperature; the second temperature sensing bulb 30, the detection head of the second temperature sensing bulb 30 is set on the inner pipe of the indoor machine of the air conditioner, in order to detect the inner pipe temperature of the air conditioner; the main chip 10, the first thermal bulb 20 and the second thermal bulb 30 are all electrically connected with the main chip 10 to receive temperature information sensed by the first thermal bulb 20 and the second thermal bulb 30.
Specifically, the detection head of the second bulb 30 is disposed on the inner tube of the indoor unit near the evaporator.
Specifically, the air conditioner includes an alarm module 40, the alarm module 40 is electrically connected to the main chip 10, the main chip 10 is configured to send alarm information to the alarm module 40 according to the received temperature information, and the alarm module 40 sends an alarm signal according to the received alarm information, that is, the alarm module 40 sends a first alarm signal or a second alarm signal according to the received alarm information.
Specifically, the alarm module 40 includes a buzzer or a voice broadcast component; the alarm module 40 also includes a display component for displaying alarm information.
Specifically, the air conditioner comprises a control module 50, the control module 50 is electrically connected with a main chip 10 and an indoor fan of the air conditioner, the main chip 10 is used for sending driving information to the control module 50 according to the received temperature information, and the control module 50 drives the indoor fan to operate according to the received driving information.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
in the control method of the air conditioner, the control method of the air conditioner comprises the steps of performing filth blockage detection on a filter screen of the air conditioner; after a compressor of the air conditioner continuously operates for a first preset time period t1 and an indoor fan of the air conditioner stably operates for a second preset time period t2 at a first preset windshield, the filth blockage detection method of the filter screen comprises the following steps: real-time detection of indoor ambient temperature T Inner ring And inner pipe temperature T of air conditioner Inner pipe (ii) a Comparing the indoor ambient temperature T during a third consecutive predetermined period of time T3 Inner ring And a first defined temperature T Limit 1 Magnitude of (2), comparison of indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up Magnitude of (1), comparison of inner tube temperature T Inner pipe And a second defined temperature T Limit 2 And whether the filter screen is dirty or blocked by foreign matters is judged according to each comparison result, namely according to the indoor environment temperature T Inner ring And a first defined temperature T Limit 1 Comparison result of (1), indoor ambient temperature T Inner ring And the set temperature T of the air conditioner Setting up And the inner tube temperature T Inner tube And a second defined temperature T Limit 2 And judging whether the filter screen is dirty or not or whether the filter screen is shielded by foreign matters or not according to the comparison result.
The filth blockage detection method of the filter screen can realize filth blockage detection of the filter screen by utilizing the components of the air conditioner, namely, the detection components do not need to be added, so that the integral structure of the air conditioner is simpler, and the problem that the structure of the air conditioner is complicated due to the fact that the air conditioner detects whether the filter screen is filth blocked in the prior art is solved.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The control method of the air conditioner is characterized by comprising the steps of carrying out filth blockage detection on a filter screen of the air conditioner; after a compressor of the air conditioner continuously operates for a first preset time period t1 and an indoor fan of the air conditioner stably operates for a second preset time period t2 at a first preset windshield, the method for detecting the filth blockage of the filter screen comprises the following steps:
real-timeDetecting indoor ambient temperature T Inner ring And the inner tube temperature T of the air conditioner Inner pipe ；
Comparing said indoor ambient temperature T during a third consecutive predetermined period of time T3 Inner ring And a first defined temperature T Limit 1 Comparing the indoor ambient temperature T Inner ring And a set temperature T of the air conditioner Setting up Comparing the temperature T of the inner tube Inner tube And a second defined temperature T Limit 2 According to the comparison result, whether the filter screen is dirty or blocked by foreign matters is judged;
detecting indoor ambient temperature T in real time Inner ring And inner tube temperature T Inner tube Then, the filth blockage detection method of the filter screen comprises the following steps: acquiring the running state of the air conditioner; wherein the operation state comprises a heating state and a cooling state;
when the air conditioner is in a cooling state and in a continuous third preset time period T3, when the indoor environment temperature T Inner ring Greater than said first limit temperature T Limit 1 And when the indoor ambient temperature T is Inner ring Is greater than the set temperature T of the air conditioner Setting up And when the temperature T of the inner tube is higher than the temperature T of the inner tube Inner pipe Less than the second limit temperature T Limit 2 Judging that the filter screen is in a dirty blocking state or a state blocked by foreign matters; wherein the first defined temperature T Limit 1 Greater than the second limit temperature T Limit 2 ；
When the air conditioner is in a heating state and in a continuous third preset time period T3, when the indoor environment temperature T is Inner ring Less than said first defined temperature T Limit 1 And when the indoor ambient temperature T is Inner ring Less than the set temperature T of the air conditioner Setting up When the temperature of the inner tube is T Inner pipe Greater than said second defined temperature T Limit 2 Judging that the filter screen is in a dirty and blocked state or a state blocked by foreign matters; wherein the first defined temperature T Limit 1 Less than said second defined temperature T Limit 2 。
2. The method for controlling an air conditioner according to claim 1, wherein after determining that the filter screen is in a filthy blockage state or in a state blocked by foreign matter, the method for detecting filthy blockage of the filter screen further comprises:
acquiring the accumulated running time of the air conditioner, and comparing the accumulated running time of the air conditioner with the preset running time M;
when the accumulated running time of the air conditioner is less than the preset running time M, judging that the filter screen is in a state of being shielded by foreign matters; and when the accumulated running time of the air conditioner is greater than or equal to the preset running time M, judging that the filter screen is in a dirty and blocked state.
3. The method for controlling an air conditioner according to claim 2, further comprising, after performing filth detection on the filter screen:
when the filter screen is judged to be shielded by the foreign matters, controlling an alarm module of the air conditioner to send out a first alarm signal so as to remind a user to remove the foreign matters shielding the filter screen;
and when the filter screen is judged to be in the filth blockage state, controlling the air conditioner to enter a self-adaptive compensation mode.
4. The control method of an air conditioner according to claim 3, wherein the operating step of the air conditioner after the air conditioner enters the adaptive compensation mode includes:
increasing an operation windshield of the indoor fan, and operating the indoor fan for a fourth preset time period t4 on the increased windshield; controlling an operation windshield of the indoor fan to increase at least one gear; or increasing the rotating speed of the indoor fan, and enabling the indoor fan to operate at the increased rotating speed for a fifth preset time period t5;
detecting the indoor ambient temperature T Inner ring And said first defined temperature T Limit 1 Difference therebetween, said indoor ambient temperature T Inner ring And the air conditionerSet temperature T of Setting up And the inner tube temperature T Inner pipe And said second defined temperature T Limit 2 Whether the differences between are all decreasing.
5. The control method of an air conditioner according to claim 4, further comprising: repeating at least one time the operation step of the air conditioner as set forth in claim 4;
when the indoor ambient temperature T Inner ring And said first defined temperature T Limit 1 Difference therebetween, said indoor ambient temperature T Inner ring And a set temperature T of the air conditioner Setting up Difference therebetween and said inner tube temperature T Inner pipe And said second defined temperature T Limit 2 The difference between the indoor ambient temperature T and the indoor ambient temperature T is reduced Inner ring And the first defined temperature T Limit 1 The difference between the indoor ambient temperature T and the first predetermined difference is less than or equal to Inner ring And a set temperature T of the air conditioner Setting up The difference between the two is less than or equal to a second predetermined difference, the inner tube temperature T Inner pipe And said second defined temperature T Limit 2 When the difference value is less than or equal to a third preset difference value, judging that the adaptive compensation of the air conditioner is effective;
when the indoor ambient temperature T Inner ring And said first defined temperature T Limit 1 Difference therebetween, said indoor ambient temperature T Inner ring And a set temperature T of the air conditioner Setting up Difference therebetween and said inner tube temperature T Inner pipe And said second defined temperature T Limit 2 The difference therebetween is not reduced, or when the indoor ambient temperature T is not reduced Inner ring And the first defined temperature T Limit 1 A reduced value of the difference between the indoor ambient temperature T and the first preset value is less than Inner ring And a set temperature T of the air conditioner Setting up A reduced value of the difference between the two is less than a second preset value, the temperature T of the inner tube Inner pipe And said second defined temperature T Limit 2 The reduction value of the difference between them is less than a third preset valueAnd if the value is the value, controlling the air conditioner to stop self-adaptive compensation and controlling an alarm module of the air conditioner to send a second alarm signal so as to remind a user to clean the filter screen.
6. The control method of an air conditioner according to claim 3, wherein the operating step of the air conditioner after the air conditioner enters the adaptive compensation mode includes:
acquiring the running state of the air conditioner; wherein the operation state comprises a heating state and a cooling state;
when the air conditioner is in a refrigerating state, controlling the set temperature of the air conditioner to be reduced by a first preset temperature, and enabling the air conditioner to operate at the reduced set temperature for a sixth preset time period t6; detecting the indoor ambient temperature T Inner ring Whether to decrease;
when the air conditioner is in a heating state, controlling the set temperature of the air conditioner to be increased by a second preset temperature, and enabling the air conditioner to operate at the increased set temperature for a seventh preset time period t7; detecting the indoor ambient temperature T Inner ring Whether it is increased.
7. The control method of an air conditioner according to claim 6, further comprising: repeating at least once the operation of the air conditioner as set forth in claim 6;
when the air conditioner is in a cooling state, when the indoor ambient temperature T is lower than the indoor ambient temperature T Inner ring Decrease and when the indoor ambient temperature T Inner ring When the reduction value is larger than a fourth preset value, judging that the self-adaptive compensation of the air conditioner is effective; when the indoor ambient temperature T Inner ring Not reduced, or when the indoor ambient temperature T Inner ring When the reduction value is smaller than the fourth preset value, controlling the air conditioner to stop self-adaptive compensation and controlling an alarm module of the air conditioner to send out a second alarm signal to remind a user to clean the filter screen;
when the air conditioner is in heating state, when the indoor environment is in heating stateTemperature T Inner ring Increases and when the indoor ambient temperature T Inner ring When the increased value of the air conditioner is greater than a fifth preset value, judging that the self-adaptive compensation of the air conditioner is effective; when the indoor ambient temperature T Inner ring Not increased or when the indoor ambient temperature T Inner ring When the increase value of the air conditioner is smaller than the fifth preset value, the air conditioner is controlled to stop self-adaptive compensation, and an alarm module of the air conditioner is controlled to send out a second alarm signal to remind a user to clean the filter screen.
8. An air conditioner characterized in that the air conditioner is adapted to the control method of any one of claims 1 to 7; the air conditioner includes:
the first temperature sensing bulb (20), the detection head of the first temperature sensing bulb (20) is used for being arranged in an indoor environment to detect the indoor environment temperature;
the detection head of the second temperature sensing bulb (30) is arranged on an inner pipe of an indoor unit of the air conditioner so as to detect the temperature of the inner pipe of the air conditioner;
the temperature sensing device comprises a main chip (10), wherein the first temperature sensing bulb (20) and the second temperature sensing bulb (30) are electrically connected with the main chip (10) so as to receive temperature information sensed by the first temperature sensing bulb (20) and the second temperature sensing bulb (30).
9. The air conditioner according to claim 8, wherein the air conditioner is adapted to the control method of the air conditioner according to claim 3 or 5; the air conditioner includes:
the alarm module (40) is electrically connected with the main chip (10), the main chip (10) is used for sending alarm information to the alarm module (40) according to the received temperature information, and the alarm module (40) sends out an alarm signal according to the received alarm information.
10. The air conditioner according to claim 8, wherein the air conditioner is adapted to the control method of the air conditioner according to any one of claims 4 to 7; the air conditioner includes:
the control module (50) is electrically connected with the main chip (10) and the indoor fan of the air conditioner, the main chip (10) is used for sending driving information to the control module (50) according to the received temperature information, and the control module (50) drives the indoor fan to operate according to the received driving information.
CN202110893561.9A 2021-08-04 2021-08-04 Control method of air conditioner and air conditioner Active CN113623817B (en)

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