CN106839326B - Air conditioner fault reminding method, device and air conditioner - Google Patents
Air conditioner fault reminding method, device and air conditioner Download PDFInfo
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- CN106839326B CN106839326B CN201710114826.4A CN201710114826A CN106839326B CN 106839326 B CN106839326 B CN 106839326B CN 201710114826 A CN201710114826 A CN 201710114826A CN 106839326 B CN106839326 B CN 106839326B
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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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
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of air conditioner fault reminding method, device and air conditioner, the air conditioner fault reminding method includes: the first temperature value T1 that indoor evaporator inlet is obtained in each predetermined period, the second temperature value T2 and the third temperature value T3 in the middle part of evaporator in exit；If judgement knows that the difference of the first temperature value T1 and second temperature value T2 is greater than or equal to the first preset threshold Ta, and first temperature value T1 and third temperature value T3 difference be greater than or equal to the second preset threshold Tb, the prompt information that air conditioner lacks refrigerant then is exported to user, wherein Tb >=Ta/2.Air conditioner fault reminding method provided by the invention, the present invention can help user to predict the imminent failure of air conditioner in advance or inform the reason of failure occurs after the failure occurred, so that user carries out timely and effective processing.
Description
Technical field
The present embodiments relate to air-conditioning technical fields, and in particular to a kind of air conditioner fault reminding method, device and sky
Adjust device.
Background technique
As the long-time service of air conditioner, especially user lack the habit and knowledge of maintenance air conditioner on ordinary days, thus lead
Cause air conditioner to be relatively easy to a kind of failure occur: i.e. air conditioner room unit freezes.
The reason of causing air conditioner room unit freezeout to occur mainly has two o'clock, one is indoor unit dust is too many, steams
Hair device is all blocked by dust, and heat transfer effect substantially reduces, and is caused heat to dissipate and is not gone out, and evaporator own temperature constantly reduces,
Eventually lead to the frost that itself freezes；Another kind is system refrigerant leakage, very low into evaporator temperature after refrigerant throttling, low
In zero degree, thus can frosting.
But user can not often predict when indoor unit will freeze failure, can not carry out advanced processing, or
Freeze also judge after failure occurs be due to what caused by, thus timely and effective processing can not be carried out.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of air conditioner fault reminding method, device and air conditioner, this
Invention can help user to predict the imminent failure of air conditioner in advance or inform the reason of failure occurs after the failure occurred,
So that user carries out timely and effective processing.
In order to solve the above technical problems, the present invention the following technical schemes are provided:
In a first aspect, the present invention provides a kind of air conditioner fault reminding methods, comprising:
In each predetermined period, the first temperature value T1 of indoor evaporator inlet, the second temperature in exit are obtained
Third temperature value T3 in the middle part of value T2 and evaporator；
If judgement know the difference of the first temperature value T1 and second temperature value T2 more than or equal to the first preset threshold Ta, and the
The difference of one temperature value T1 and third temperature value T3 are greater than or equal to the second preset threshold Tb, then lack to user's output air conditioner cold
The prompt information of matchmaker, wherein Tb >=Ta/2.
Further, the method also includes:
According to temperature range locating for the first temperature value T1, according to preset control strategy to compressor and/or interior exogenous wind
Machine is accordingly controlled, to prevent indoor evaporator frosting；
Or,
According to temperature range locating for second temperature value T2, according to preset control strategy to compressor and/or interior exogenous wind
Machine is accordingly controlled, to prevent indoor evaporator frosting；
Or,
According to temperature range locating for third temperature value T3, according to preset control strategy to compressor and/or interior exogenous wind
Machine is accordingly controlled, to prevent indoor evaporator frosting.
Further, the temperature range according to locating for the first temperature value T1, according to preset control strategy to compression
Machine and/or inside and outside blower are accordingly controlled, and to prevent indoor evaporator frosting, are specifically included:
If the first temperature value T1 is greater than the first temperature threshold, compressor and inside and outside blower are controlled according to air conditioner
The parameter currently set is run；
If the first temperature value T1 is greater than second temperature threshold value, and is less than or equal to the first temperature threshold, then pressure is controlled
Contracting machine is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed；
If the first temperature value T1 is greater than third temperature threshold, and is less than or equal to second temperature threshold value, then pressure is controlled
Contracting machine lower than current frequency to run, or, control compressor is lower than current frequency operation, and control inner blower revolving speed
It increases, outer rotation speed of fan reduces；
If the first temperature value T1 is less than or equal to third temperature threshold, compressor and inside and outside fan parking are controlled.
Further, the control compressor is specifically included with running lower than current frequency:
Controlling compressor every preset time period reduces predeterminated frequency value, until the first temperature value T1 in subsequent cycle is not
Meet again greater than third temperature threshold, and less than or equal to until this condition of second temperature threshold value.
Further, the control inner blower revolving speed increases, and outer rotation speed of fan reduces, and specifically includes:
It controls inner blower revolving speed and increases 50-100rad/min, outer rotation speed of fan reduces 50-100rad/min.
Further, the method also includes:
When the first temperature value T1 is less than or equal to second temperature threshold value, if the first temperature value T1 and second temperature value T2 it
Difference is less than the first preset threshold Ta, or, the difference of the first temperature value T1 and third temperature value T3 is less than the second preset threshold Tb, then to
User exports the prompt information of evaporator blocking or the blocking of indoor unit return air inlet.
Further, the temperature range according to locating for second temperature value T2, according to preset control strategy to compression
Machine and/or inside and outside blower are accordingly controlled, and to prevent indoor evaporator frosting, are specifically included:
If the second temperature value T2 is greater than the 4th temperature threshold, compressor and inside and outside blower are controlled according to air conditioner
The parameter currently set is run；
If the second temperature value T2 is greater than the 5th temperature threshold, and is less than or equal to the 4th temperature threshold, then pressure is controlled
Contracting machine is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed；
If the second temperature value T2 is greater than the 6th temperature threshold, and is less than or equal to the 5th temperature threshold, then pressure is controlled
Contracting machine lower than current frequency to run, or, control compressor is lower than current frequency operation, and control inner blower revolving speed
It increases, outer rotation speed of fan reduces；
If the second temperature value T2 is less than or equal to the 6th temperature threshold, compressor and inside and outside fan parking are controlled.
Further, the method also includes:
When second temperature value T2 is less than or equal to five temperature thresholds, if the first temperature value T1 and second temperature value T2 it
Difference is less than the first preset threshold Ta, or, the difference of the first temperature value T1 and third temperature value T3 is less than the second preset threshold Tb, then to
User exports the prompt information of evaporator blocking or the blocking of indoor unit return air inlet.
Further, the temperature range according to locating for third temperature value T3, according to preset control strategy to compression
Machine and/or inside and outside blower are accordingly controlled, and to prevent indoor evaporator frosting, are specifically included:
If the third temperature value T3 is greater than the 7th temperature threshold, compressor and inside and outside blower are controlled according to air conditioner
The parameter currently set is run；
If the third temperature value T3 is greater than the 8th temperature threshold, and is less than or equal to the 7th temperature threshold, then pressure is controlled
Contracting machine is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed；
If the third temperature value T3 is greater than the 9th temperature threshold, and is less than or equal to the 8th temperature threshold, then pressure is controlled
Contracting machine lower than current frequency to run, or, control compressor is lower than current frequency operation, and control inner blower revolving speed
It increases, outer rotation speed of fan reduces；
If the third temperature value T3 is less than or equal to the 9th temperature threshold, compressor and inside and outside fan parking are controlled.
Further, the method also includes:
When third temperature value T3 is less than or equal to eight temperature thresholds, if the first temperature value T1 and second temperature value T2 it
Difference is less than the first preset threshold Ta, or, the difference of the first temperature value T1 and third temperature value T3 is less than the second preset threshold Tb, then to
User exports the prompt information of evaporator blocking or the blocking of indoor unit return air inlet.
Second aspect, the present invention also provides a kind of air conditioner fault suggestion devices, comprising:
Module is obtained, for obtaining the first temperature value T1, the outlet of indoor evaporator inlet in each predetermined period
Third temperature value T3 in the middle part of the second temperature value T2 and evaporator at place；
Cue module, for knowing that it is pre- that the difference of the first temperature value T1 and second temperature value T2 is greater than or equal to first in judgement
If threshold value Ta, and the difference of the first temperature value T1 and third temperature value T3 be greater than or equal to the second preset threshold Tb when, it is defeated to user
Air conditioner lacks the prompt information of refrigerant out, wherein Tb >=Ta/2.
Further, described device further include: control module；
The control module, for the temperature range according to locating for the first temperature value T1, according to preset control strategy pair
Compressor and/or inside and outside blower are accordingly controlled, to prevent indoor evaporator frosting；
Or,
For the temperature range according to locating for second temperature value T2, according to preset control strategy to compressor and/or interior
Outer blower is accordingly controlled, to prevent indoor evaporator frosting；
Or,
For the temperature range according to locating for third temperature value T3, according to preset control strategy to compressor and/or interior
Outer blower is accordingly controlled, to prevent indoor evaporator frosting.
Further, the control module, is specifically used for:
When the first temperature value T1 is greater than the first temperature threshold, compressor and inside and outside blower are controlled according to air conditioner
The parameter currently set is run；
When being greater than second temperature threshold value in the first temperature value T1, and being less than or equal to the first temperature threshold, control pressure
Contracting machine is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed；
When being greater than third temperature threshold in the first temperature value T1, and being less than or equal to second temperature threshold value, control pressure
Contracting machine lower than current frequency to run, or, control compressor is lower than current frequency operation, and control inner blower revolving speed
It increases, outer rotation speed of fan reduces；
When the first temperature value T1 is less than or equal to third temperature threshold, compressor and inside and outside fan parking are controlled.
Further, the control module is specifically used for when controlling compressor with lower than current frequency operation:
Controlling compressor every preset time period reduces predeterminated frequency value, until the first temperature value obtained in subsequent cycle
T1, which no longer meets, is greater than third temperature threshold, and less than or equal to until this condition of second temperature threshold value.
Further, the control module is increased in control inner blower revolving speed, when outer rotation speed of fan reduces, is specifically used for:
It controls inner blower revolving speed and increases 50-100rad/min, outer rotation speed of fan reduces 50-100rad/min.
Further, the cue module is also used to when the first temperature value T1 is less than or equal to second temperature threshold value, if
The difference for knowing the first temperature value and second temperature value T2 is judged less than the first preset threshold Ta, or, the first temperature value T1 and third
When the difference of temperature value T3 is less than the second preset threshold Tb, then mentioned to what user's output evaporator blocking or indoor unit return air inlet blocked
Show information.
Further, the control module, is specifically used for:
When the second temperature value T2 is greater than four temperature thresholds, compressor and inside and outside blower are controlled according to air conditioner
The parameter currently set is run；
When being greater than the 5th temperature threshold in the second temperature value T2, and being less than or equal to four temperature thresholds, control pressure
Contracting machine is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed；
When being greater than the 6th temperature threshold in the second temperature value T2, and being less than or equal to five temperature thresholds, control pressure
Contracting machine lower than current frequency to run, or, control compressor is lower than current frequency operation, and control inner blower revolving speed
It increases, outer rotation speed of fan reduces；
When the second temperature value T2 is less than or equal to six temperature thresholds, compressor and inside and outside fan parking are controlled.
Further, the cue module is also used to when second temperature value T2 is less than or equal to five temperature thresholds, if
The difference for knowing the first temperature value and second temperature value T2 is judged less than the first preset threshold Ta, or, the first temperature value T1 and third
When the difference of temperature value T3 is less than the second preset threshold Tb, then mentioned to what user's output evaporator blocking or indoor unit return air inlet blocked
Show information.
Further, the control module, is specifically used for:
When the third temperature value T3 is greater than seven temperature thresholds, compressor and inside and outside blower are controlled according to air conditioner
The parameter currently set is run；
When being greater than the 8th temperature threshold in the third temperature value T3, and being less than or equal to seven temperature thresholds, control pressure
Contracting machine is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed；
When being greater than the 9th temperature threshold in the third temperature value T3, and being less than or equal to eight temperature thresholds, control pressure
Contracting machine lower than current frequency to run, or, control compressor is lower than current frequency operation, and control inner blower revolving speed
It increases, outer rotation speed of fan reduces；
When the third temperature value T3 is less than or equal to nine temperature thresholds, compressor and inside and outside fan parking are controlled.
Further, the cue module is also used to when third temperature value T3 is less than or equal to eight temperature thresholds, if
The difference for knowing the first temperature value and second temperature value T2 is judged less than the first preset threshold Ta, or, the first temperature value T1 and third
When the difference of temperature value T3 is less than the second preset threshold Tb, then mentioned to what user's output evaporator blocking or indoor unit return air inlet blocked
Show information.
The third aspect, the present invention also provides a kind of air conditioners, including air conditioner fault suggestion device as described above.
As shown from the above technical solution, air conditioner fault reminding method provided by the invention, is obtained in each predetermined period
Take the first temperature value T1 of indoor evaporator inlet, the second temperature value T2 in exit and the third temperature value in the middle part of evaporator
Then T3 exports prompt information to user according to the relationship of the first temperature value T1, second temperature value T2 and third temperature value T3, with
It helps user to predict the imminent failure of air conditioner in advance or informs the reason of failure occurs after the failure occurred, so that
User carries out timely and effective processing, and then effective protection air conditioner.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of flow chart for the air conditioner fault reminding method that one embodiment of the invention provides；
Fig. 2 is another flow chart for the air conditioner fault reminding method that one embodiment of the invention provides；
Fig. 3 is another flow chart for the air conditioner fault reminding method that one embodiment of the invention provides；
Fig. 4 be another embodiment of the present invention provides air conditioner fault suggestion device structural schematic diagram.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
For the problems of the prior art, the present invention provides a kind of air conditioner fault reminding method, air conditioner fault prompt
Device and air conditioner, the present invention is according to the temperature value at indoor evaporator inlet, exit and middle part to air conditioner room unit
The reason of breaking down is prompted, so that user timely and accurately knows the reason of air conditioner room unit breaks down,
So as to timely and effectively be handled.The solution of the present invention will be explained in detail by specific embodiment below
It is bright.
Fig. 1 shows the flow chart of the air conditioner fault reminding method of one embodiment of the invention offer, referring to Fig. 1, this hair
The air conditioner fault reminding method that a bright embodiment provides includes the following steps:
Step 101: in each predetermined period, obtaining the first temperature value T1 of indoor evaporator inlet, exit
Third temperature value T3 in the middle part of second temperature value T2 and evaporator.
Step 102: judge whether the first temperature value T1, second temperature value T2 and third temperature value T3 meet following relationships:
The difference of first temperature value T1 and second temperature value T2 are greater than or equal to the first preset threshold Ta, and the first temperature value T1 and third temperature
The difference of angle value T3 is greater than or equal to the second preset threshold Tb, wherein Tb >=Ta/2.If satisfied, thening follow the steps 103a.
In this step, since the first temperature value T1 is the temperature of indoor evaporator inlet, second temperature value T2 is room
Temperature, third temperature value T3 at interior evaporator inlet are the temperature in the middle part of evaporator, then as T1-T2 >=Ta, T1-T3 >=Tb
When, illustrating refrigerant, heat exchanger heat transfer temperature difference is very big indoors, and the refrigerant flowed through in pipe is very little, so it is likely to result in room
Interior machine freezes, and can be determined that system lacks refrigerant at this time, so can export air conditioner to user lacks mentioning for refrigerant
Show information.
It is understood that when indoor evaporator includes a plurality of branch, the first temperature value of indoor evaporator inlet
T1 be temperature value of the evaporator at the preceding main entrance of branch, or for each branch inlet temperature average value.Indoor steaming
The second temperature value T2 for sending out device exit is the temperature in exit of each branch of evaporator after summarizing, or going out for each branch
The average value of temperature at mouthful.Third temperature value T3 in the middle part of indoor evaporator is being averaged for each branch middle portion temperature of evaporator
Value.
For example, Tb=6 DEG C, T1=11 DEG C, T2=0 DEG C, T3=2 DEG C, illustrating that refrigerant is indoors at this time if Ta=10 DEG C
Heat exchanger heat transfer temperature difference is very big, and the refrigerant flowed through in pipe is very little, so be possible to will lead in the coming period of time
Indoor unit freezes, and can be determined that system lacks refrigerant at this time, thus can export air conditioner to user and lack mentioning for refrigerant
Show information, so that user fills refrigerant in time, to prevent from causing air conditioner to be unable to operate normally because of indoor unit failure, does as far as possible
To preventing in advance.
For another example, if Ta=15 DEG C, Tb=8 DEG C, T1=8 DEG C, T2=-8 DEG C, T3=-1 DEG C, illustrate that refrigerant is in room at this time
Interior heat exchanger heat transfer temperature difference is very big, and the refrigerant flowed through in pipe is very little, so indoor unit is caused to freeze, can sentence at this time
Determine system and lack refrigerant, thus the prompt information that air conditioner lack refrigerant can be exported to user, so as to user fill in time it is cold
Matchmaker.It is understood that in this case, indoor unit, which actually has occurred and that, to be freezed, and specifically whether is shut down, need to see jelly frost
The corresponding control strategy being arranged inside the thickness or air conditioner to freeze.
Step 103: exporting the prompt information that air conditioner lacks refrigerant to user.
In this step, when exporting air conditioner to user and lacking the prompt information of refrigerant, can machine indoors display
Screen display text " air conditioner lacks refrigerant " or other similar prompt information, such as display " REFRI ", for indicating air-conditioning
Device lacks refrigerant, may remind the user that oneself in this way or maintenance personal is looked for carry out refrigerant punching note.
By the scheme recorded above it is found that air conditioner fault reminding method provided in an embodiment of the present invention, each default
Obtain in period the first temperature value T1 of indoor evaporator inlet, the second temperature value T2 in exit and in the middle part of evaporator the
Then three temperature value T3 are mentioned according to the relationship of the first temperature value T1, second temperature value T2 and third temperature value T3 to user's output
Show information, to help user to predict the imminent failure of air conditioner in advance or inform the original of failure generation after the failure occurred
Cause, so that user carries out timely and effective processing, and then effective protection air conditioner.
In a kind of optional embodiment, air conditioner fault reminding method provided in an embodiment of the present invention is in addition to that can play
Indoor unit freezes outside the effect of fault cues, and the hair of indoor unit freezeout can also be avoided as far as possible by certain control means
It is raw.
In the present embodiment, referring to fig. 2, above-mentioned air conditioner fault reminding method further include: step 104.
Step 104: according to temperature range locating for the first temperature value T1, according to preset control strategy to compressor and/
Or inside and outside blower is accordingly controlled, to prevent indoor evaporator frosting；Or, the humidity province according to locating for second temperature value T2
Between, compressor and/or inside and outside blower are accordingly controlled according to preset control strategy, to prevent indoor evaporator frosting；
Or, the temperature range according to locating for third temperature value T3, carries out compressor and/or inside and outside blower according to preset control strategy
Corresponding control, to prevent indoor evaporator frosting.
In the present embodiment, the temperature range according to locating for the first temperature value T1 that step 101 obtains, according to preset
Control strategy accordingly controls compressor and/or inside and outside blower, to prevent indoor evaporator frosting.
For example, when the first temperature value T1, which is in, the possible temperature range of frosting, so that air conditioner is according to original
The running parameter operation first set, without carrying out Special controlling or limitation to compressor and/or inside and outside blower.When first temperature
When angle value T1 is in the temperature range for being possible to frosting, the operation of control compressor maintenance current frequency (and control inside and outside blower
Maintain current rotating speed operation), to prevent indoor evaporator frosting.For another example, when the first temperature value T1 is in frosting i.e.
When temperature range, control compressor does frequency reducing operation processing (and reducing outer rotation speed of fan, improve inner blower revolving speed), to prevent
Indoor evaporator frosting.
As it can be seen that this piecewise interval control methods that present embodiment provides effectively avoid so that air-conditioning adjusting is more fine
Indoor unit freezes the appearance of situation.
In a kind of optional embodiment, a kind of specific implementation of above-mentioned steps 104 are as follows:
1. controlling compressor and inside and outside blower according to air-conditioning if the first temperature value T1 is greater than the first temperature threshold
The parameter that device is currently set is run.
Here, control compressor and inside and outside blower, which run according to the parameter that air conditioner is currently set, is understood that
Are as follows: control compressor, inside and outside blower are run according to the parameter that user currently sets.Here, the parameter that user currently sets
The running parameter of air conditioner for referring generally to requirement of the user according to current environmental temperature and to comfort level and setting.For example, false
If current room temperature is 33 DEG C, target temperature set by user is 28 DEG C, then the parameter currently set described here refers to: air-conditioning
The relevant operating parameter that device is determined according to 33 DEG C of 28 DEG C of target temperature set by user and current room temperature, comprising: compressor
Working frequency, the revolving speed of inside and outside blower etc..
Here, when the first temperature value T1 is greater than the first temperature threshold, illustrate that the first temperature value T1 is in not at this time
There is the possible temperature range of frosting, is only needed at this time so that compressor, inside and outside blower are run according to original parameter, nothing
It need to carry out Special controlling.
2. if the first temperature value T1 is greater than second temperature threshold value, and being less than or equal to the first temperature threshold, then control
Compressor is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed, to prevent indoor evaporator
Frosting.
Here, it when the first temperature value T1 is greater than second temperature threshold value, and is less than or equal to the first temperature threshold, says
Bright the first temperature value T1 described at this time is in the temperature range for being possible to frosting, needs to control the frequency that compressor remains current at this time
Rate operation, and control inside and outside blower and maintain current rotating speed operation, to prevent indoor evaporator frosting.
3. if the first temperature value T1 is greater than third temperature threshold, and being less than or equal to second temperature threshold value, then control
Compressor lower than current frequency to run, to prevent indoor evaporator frosting, or, control compressor is to be lower than current frequency
Operation, and control inner blower revolving speed increases, outer rotation speed of fan reduces, to prevent indoor evaporator frosting.
Here, it when the first temperature value T1 is greater than third temperature threshold, and is less than or equal to second temperature threshold value, says
Bright the first temperature value T1 described at this time is in the temperature range of frosting i.e., should be controlled compressor at this time and be done frequency reducing operation processing,
Or control compressor does frequency reducing operation processing and reduces outer rotation speed of fan, inner blower revolving speed is improved, to prevent indoor evaporator
Frosting.
4. controlling compressor if the first temperature value T1 is less than or equal to third temperature threshold and inside and outside blower stopping
Machine, to prevent indoor evaporator frosting.
Here, when the first temperature value T1 is less than or equal to third temperature threshold, illustrate first temperature at this time
Value T1 is in the temperature range of frosting, should control compressor and inside and outside fan parking, at this time to protect air conditioner.
Here, the value range of first temperature threshold is generally 3.5~5 DEG C, for example 4 DEG C；The second temperature threshold
The value range of value is generally 1.5~3.5 DEG C, for example 2 DEG C；The value range of the third temperature threshold be generally 0.5 DEG C~
1.5 DEG C, for example 1 DEG C.
So according to above-mentioned control strategy it is found that when 4 DEG C of T1 >, be now in the stage without limitation, only need so that
Compressor, inside and outside blower are run according to original parameter.
It is the frequency limit stage at this time when 2 DEG C of T1≤4 DEG C <, guarantees the compressor frequency in this stage, inside and outside rotation speed of fan is not
Increase again, frequency and revolving speed at this time is maintained to continue to run；
When 1 DEG C of T1≤2 DEG C <, it is the frequency reducing stage at this time, needs to reduce the frequency of compressor at this time.Freeze in order to balance
Ability, can set compressor every preset time period here reduces predeterminated frequency value, for example, every 5 minutes reduction 2Hz, directly
Until T1 is not in this temperature range.Preferably, in order to further suppress frosting, compressor frequency can also reduced (every 5
Minute reduces 2Hz, until T1 not until this temperature range) while, control inner blower revolving speed increases and the outer blower of control
Revolving speed reduces.For example, machine revolving speed increases 50-100rad/min in controlling, outer rotation speed of fan reduces 50-100rad/min.Wherein,
Inner blower revolving speed increases, and outer rotation speed of fan reduces, and can help improve inside heat exchanger heat transfer effect, reduces outside heat exchanger
Heat transfer effect, effectively inhibition frosting.
When T1≤1 DEG C, illustrate that frost layer is very thick at this time, compressor, inside and outside machine blower should be stopped, to protect interior
Machine.
As seen from the above description, air conditioner fault reminding method provided in an embodiment of the present invention, in each predetermined period
The first temperature value T1 of indoor evaporator inlet is obtained, then the temperature range according to locating for the first temperature value T1, according to area
Between discrete method control air conditioner operation so that adjust it is more fine, effectively prevent the appearance that indoor unit freezes situation, in turn
It can effectively improve the safety of air conditioner and the reliability of refrigeration system.
In a kind of optional embodiment, referring to Fig. 3, air conditioner fault reminding method provided in an embodiment of the present invention is also wrapped
It includes: step 105.
Wherein, the execution condition of step 105 is: when the first temperature value T1 is less than or equal to second temperature threshold value, if the
The difference of one temperature value T1 and second temperature value T2 are less than the first preset threshold Ta, or, the first temperature value T1 and third temperature value T3
Difference less than the second preset threshold Tb, then follow the steps 105.
Step 105: the prompt information of evaporator blocking or the blocking of indoor unit return air inlet is exported to user.
In the present embodiment, when the first temperature value T1 is less than or equal to second temperature threshold value, illustrate at current system
In frequency reducing stage or shutdown phase, if judging the difference for knowing the first temperature value and second temperature value T2 less than the first default threshold at this time
Value Ta, or, the difference of the first temperature value T1 and third temperature value T3 less than the second preset threshold Tb, then illustrate that air conditioner is not at this time
Lack refrigerant, then can determine whether it is that indoor machine evaporation is blocked or indoor unit return air inlet is blocked, thus
The prompt information of evaporator blocking or the blocking of indoor unit return air inlet can be exported to user.
It wherein, can be indoors when exporting the prompt information of evaporator blocking or the blocking of indoor unit return air inlet to user
The display screen display text " evaporator blocking or the blocking of indoor unit return air inlet " of machine or other similar prompt information, for example, it is aobvious
Show " FROST ", for indicating evaporator blocking or the blocking of indoor unit return air inlet, may remind the user that cleaning filter screen in time in this way
And evaporator.
From the description above it is found that the air conditioner fault reminding method that present embodiment provides, passes through some simple temperature
Point judgement, can show corresponding prompt information to user, to facilitate user to perform corresponding processing in advance or in time, avoid sky
It adjusts device to be damaged, provides users with the convenient.
In a kind of optional embodiment, another specific implementation of above-mentioned steps 104 are as follows:
1. controlling compressor and inside and outside blower according to air-conditioning if the second temperature value T2 is greater than the 4th temperature threshold
The parameter that device is currently set is run.
Here, when the second temperature value T2 is greater than four temperature thresholds, illustrate that second temperature value T2 is in not at this time
There is the possible temperature range of frosting, is only needed at this time so that compressor, inside and outside blower are run according to original parameter, nothing
It need to carry out Special controlling.
2. if the second temperature value T2 is greater than the 5th temperature threshold, and being less than or equal to the 4th temperature threshold, then control
Compressor is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed, to prevent indoor evaporator
Frosting.
Here, it when the second temperature value T2 is greater than the 5th temperature threshold, and is less than or equal to four temperature thresholds, says
The bright second temperature value T2 described at this time is in the temperature range for being possible to frosting, needs to control the frequency that compressor remains current at this time
Rate operation, and control inside and outside blower and maintain current rotating speed operation, to prevent indoor evaporator frosting.
3. if the second temperature value T2 is greater than the 6th temperature threshold, and being less than or equal to the 5th temperature threshold, then control
Compressor lower than current frequency to run, to prevent indoor evaporator frosting, or, control compressor is to be lower than current frequency
Operation, and control inner blower revolving speed increases, outer rotation speed of fan reduces, to prevent indoor evaporator frosting.
Here, it when the second temperature value T2 is greater than the 6th temperature threshold, and is less than or equal to five temperature thresholds, says
The bright second temperature value T2 described at this time is in the temperature range of frosting i.e., should be controlled compressor at this time and be done frequency reducing operation processing,
Or control compressor does frequency reducing operation processing and reduces outer rotation speed of fan, inner blower revolving speed is improved, to prevent indoor evaporator
Frosting.
4. controlling compressor if the second temperature value T2 is less than or equal to the 6th temperature threshold and inside and outside blower stopping
Machine, to prevent indoor evaporator frosting.
Here, when the second temperature value T2 is less than or equal to six temperature thresholds, illustrate the second temperature at this time
Value T2 is in the temperature range of frosting, should control compressor and inside and outside fan parking, at this time to protect air conditioner.
Here, the value range of the 4th temperature threshold is generally 1.5~3 DEG C, for example 2 DEG C；5th temperature threshold
The value range of value is generally 0.5~1.5 DEG C, for example 1 DEG C；Generally -0.5 DEG C of the value range of 6th temperature threshold~
0.5 DEG C, for example 0 DEG C.
In a kind of optional embodiment, when second temperature value T2 is less than or equal to five temperature thresholds, if the first temperature
The difference of angle value T1 and second temperature value T2 are less than the first preset threshold Ta, or, the difference of the first temperature value T1 and third temperature value T3
Less than the second preset threshold Tb, then the prompt information of evaporator blocking or the blocking of indoor unit return air inlet is exported to user.
In the present embodiment, when second temperature value T2 is less than or equal to five temperature thresholds, illustrate at current system
In frequency reducing stage or shutdown phase, if judging the difference for knowing the first temperature value and second temperature value T2 less than the first default threshold at this time
Value Ta, or, the difference of the first temperature value T1 and third temperature value T3 less than the second preset threshold Tb, then illustrate that air conditioner is not at this time
Lack refrigerant, then can determine whether it is that indoor machine evaporation is blocked or indoor unit return air inlet is blocked, thus
The prompt information of evaporator blocking or the blocking of indoor unit return air inlet can be exported to user.
In a kind of optional embodiment, another specific implementation of above-mentioned steps 104 are as follows:
1. controlling compressor and inside and outside blower according to air-conditioning if the third temperature value T3 is greater than the 7th temperature threshold
The parameter that device is currently set is run.
Here, when the third temperature value T3 is greater than seven temperature thresholds, illustrate that third temperature value T3 is in not at this time
There is the possible temperature range of frosting, is only needed at this time so that compressor, inside and outside blower are run according to original parameter, nothing
It need to carry out Special controlling.
2. if the third temperature value T3 is greater than the 8th temperature threshold, and being less than or equal to the 7th temperature threshold, then control
Compressor is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed, to prevent indoor evaporator
Frosting.
Here, it when the third temperature value T3 is greater than the 8th temperature threshold, and is less than or equal to seven temperature thresholds, says
The bright third temperature value T3 described at this time is in the temperature range for being possible to frosting, needs to control the frequency that compressor remains current at this time
Rate operation, and control inside and outside blower and maintain current rotating speed operation, to prevent indoor evaporator frosting.
3. if the third temperature value T3 is greater than the 9th temperature threshold, and being less than or equal to the 8th temperature threshold, then control
Compressor lower than current frequency to run, to prevent indoor evaporator frosting, or, control compressor is to be lower than current frequency
Operation, and control inner blower revolving speed increases, outer rotation speed of fan reduces, to prevent indoor evaporator frosting.
Here, it when the third temperature value T3 is greater than the 9th temperature threshold, and is less than or equal to eight temperature thresholds, says
The bright third temperature value T3 described at this time is in the temperature range of frosting i.e., should be controlled compressor at this time and be done frequency reducing operation processing,
Or control compressor does frequency reducing operation processing and reduces outer rotation speed of fan, inner blower revolving speed is improved, to prevent indoor evaporator
Frosting.
4. controlling compressor if the third temperature value T3 is less than or equal to the 9th temperature threshold and inside and outside blower stopping
Machine, to prevent indoor evaporator frosting.
Here, when the third temperature value T3 is less than or equal to nine temperature thresholds, illustrate the third temperature at this time
Value T3 is in the temperature range of frosting, should control compressor and inside and outside fan parking, at this time to protect air conditioner.
Here, the value range of the 7th temperature threshold is generally 0.5~1.5 DEG C, for example 1 DEG C；8th temperature
The value range of threshold value is generally -0.5~0.5 DEG C, for example 0 DEG C；The value range of 9th temperature threshold is generally -2.5
DEG C~-0.5 DEG C, for example -1 DEG C.
In a kind of optional embodiment, when third temperature value T3 is less than or equal to eight temperature thresholds, if the first temperature
The difference of angle value T1 and second temperature value T2 are less than the first preset threshold Ta, or, the difference of the first temperature value T1 and third temperature value T3
Less than the second preset threshold Tb, then the prompt information of evaporator blocking or the blocking of indoor unit return air inlet is exported to user.
In the present embodiment, when third temperature value T3 is less than or equal to eight temperature thresholds, illustrate at current system
In frequency reducing stage or shutdown phase, if judging the difference for knowing the first temperature value and second temperature value T2 less than the first default threshold at this time
Value Ta, or, the difference of the first temperature value T1 and third temperature value T3 less than the second preset threshold Tb, then illustrate that air conditioner is not at this time
Lack refrigerant, then can determine whether it is that indoor machine evaporation is blocked or indoor unit return air inlet is blocked, thus
The prompt information of evaporator blocking or the blocking of indoor unit return air inlet can be exported to user.
Based on identical inventive concept, another embodiment of the present invention additionally provides a kind of air conditioner fault suggestion device, ginseng
See Fig. 4, which includes: to obtain module 21 and cue module 22, in which:
Module 21 is obtained, for obtaining the first temperature value T1 of indoor evaporator inlet in each predetermined period, going out
The third temperature value T3 in the middle part of second temperature value T2 and evaporator at mouthful；
Cue module 22, for knowing that the difference of the first temperature value T1 and second temperature value T2 is greater than or equal to first in judgement
Preset threshold, and the difference of the first temperature value T1 and third temperature value T3 be greater than or equal to the second preset threshold when, to user export
Air conditioner lacks the prompt information of refrigerant.
In a kind of optional embodiment, referring to fig. 4, described device further include: control module 23；
The control module 23, for the temperature range according to locating for the first temperature value T1, according to preset control strategy
Compressor and/or inside and outside blower are accordingly controlled, to prevent indoor evaporator frosting；Or, for according to second temperature value
Temperature range locating for T2 accordingly controls compressor and/or inside and outside blower according to preset control strategy, to prevent room
Interior evaporimeter frosting；Or, the temperature range according to locating for third temperature value T3 is used for, according to preset control strategy to compressor
And/or inside and outside blower is accordingly controlled, to prevent indoor evaporator frosting.
In a kind of optional embodiment, the control module 23 is specifically used for:
When the first temperature value T1 is greater than the first temperature threshold, compressor and inside and outside blower are controlled according to air conditioner
The parameter currently set is run；
When being greater than second temperature threshold value in the first temperature value T1, and being less than or equal to the first temperature threshold, control pressure
Contracting machine is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed, to prevent indoor evaporator knot
Frost；
When being greater than third temperature threshold in the first temperature value T1, and being less than or equal to second temperature threshold value, control pressure
Contracting machine lower than current frequency to run, to prevent indoor evaporator frosting, or, control compressor lower than current frequency to transport
Row, and control inner blower revolving speed increases, outer rotation speed of fan reduces, to prevent indoor evaporator frosting；
When the first temperature value T1 is less than or equal to third temperature threshold, compressor and inside and outside fan parking are controlled,
To prevent indoor evaporator frosting.
In a kind of optional embodiment, the control module 23 is in control compressor to run lower than current frequency
When, it is specifically used for:
Controlling compressor every preset time period reduces predeterminated frequency value, until the first temperature value obtained in subsequent cycle
T1, which no longer meets, is greater than third temperature threshold, and less than or equal to until this condition of second temperature threshold value.
In a kind of optional embodiment, the control module 23 is increased in control inner blower revolving speed, outer rotation speed of fan drop
When low, it is specifically used for:
It controls inner blower revolving speed and increases 50-100rad/min, outer rotation speed of fan reduces 50-100rad/min.
In a kind of optional embodiment, the cue module 22 is also used to be greater than third temperature in the first temperature value T1
Threshold value and be less than or equal to second temperature threshold value, or, the first temperature value T1 be less than or equal to third temperature threshold when, if judgement obtain
The difference of the first temperature value and second temperature value T2 are known less than the first preset threshold Ta, or, the first temperature value T1 and third temperature value
When the difference of T3 is less than the second preset threshold Tb, then the prompt letter of evaporator blocking or the blocking of indoor unit return air inlet is exported to user
Breath.
In a kind of optional embodiment, the control module 23 is specifically used for:
When the second temperature value T2 is greater than four temperature thresholds, compressor and inside and outside blower are controlled according to air conditioner
The parameter currently set is run；
When being greater than the 5th temperature threshold in the second temperature value T2, and being less than or equal to four temperature thresholds, control pressure
Contracting machine is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed；
When being greater than the 6th temperature threshold in the second temperature value T2, and being less than or equal to five temperature thresholds, control pressure
Contracting machine lower than current frequency to run, or, control compressor is lower than current frequency operation, and control inner blower revolving speed
It increases, outer rotation speed of fan reduces；
When the second temperature value T2 is less than or equal to six temperature thresholds, compressor and inside and outside fan parking are controlled.
In a kind of optional embodiment, the cue module 22 is also used to be less than or equal to the in second temperature value T2
When five temperature thresholds, if judging the difference for knowing the first temperature value and second temperature value T2 less than the first preset threshold Ta, or, first
When the difference of temperature value T1 and third temperature value T3 are less than the second preset threshold Tb, then evaporator blocking or indoor unit are exported to user
The prompt information of return air inlet blocking.
In a kind of optional embodiment, the control module 23 is specifically used for:
When the third temperature value T3 is greater than seven temperature thresholds, compressor and inside and outside blower are controlled according to air conditioner
The parameter currently set is run；
When being greater than the 8th temperature threshold in the third temperature value T3, and being less than or equal to seven temperature thresholds, control pressure
Contracting machine is run according to current frequency, and is controlled inside and outside blower and run according to current revolving speed；
When being greater than the 9th temperature threshold in the third temperature value T3, and being less than or equal to eight temperature thresholds, control pressure
Contracting machine lower than current frequency to run, or, control compressor is lower than current frequency operation, and control inner blower revolving speed
It increases, outer rotation speed of fan reduces；
When the third temperature value T3 is less than or equal to nine temperature thresholds, compressor and inside and outside fan parking are controlled.
In a kind of optional embodiment, the cue module 22 is also used to be less than or equal to the in third temperature value T3
When eight temperature thresholds, if judging the difference for knowing the first temperature value and second temperature value T2 less than the first preset threshold Ta, or, first
When the difference of temperature value T1 and third temperature value T3 are less than the second preset threshold Tb, then evaporator blocking or indoor unit are exported to user
The prompt information of return air inlet blocking.
Air conditioner fault suggestion device described in the present embodiment can be used for executing the event of air conditioner described in above-described embodiment
Hinder reminding method, principle is similar with technical effect, and and will not be described here in detail.
Based on same inventive concept, further embodiment of this invention additionally provides a kind of air conditioner, which includes such as
Air conditioner fault suggestion device described in above example.The air conditioner due to include above-mentioned air conditioner fault suggestion device,
It thus can solve same technical problem, and obtain identical technical effect.
Air conditioner provided in an embodiment of the present invention can be domestic air conditioner, or air-conditioner.
In the description of the present invention, it should be noted that relational terms such as first and second and the like herein are only
Only it is used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying these realities
There are any actual relationship or orders between body or operation.Moreover, the terms "include", "comprise" or its it is any its
He is intended to non-exclusive inclusion by variant, so that the process, method, article or equipment including a series of elements is not
Only include those elements, but also including other elements that are not explicitly listed, or further include for this process, method,
Article or the intrinsic element of equipment.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in the process, method, article or apparatus that includes the element.
The above examples are only used to illustrate the technical scheme of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (11)
1. a kind of air conditioner fault reminding method characterized by comprising
In each predetermined period, the first temperature value T1 of indoor evaporator inlet, the second temperature value T2 in exit are obtained
With the third temperature value T3 in the middle part of evaporator；
If judgement knows that the difference of the first temperature value T1 and second temperature value T2 is greater than or equal to the first preset threshold Ta, and the first temperature
The difference of angle value T1 and third temperature value T3 are greater than or equal to the second preset threshold Tb, then export air conditioner to user and lack refrigerant
Prompt information, wherein Tb >=Ta/2；
Wherein, the method also includes: according to temperature range locating for the first temperature value T1, according to preset control strategy to pressure
Contracting machine and/or inside and outside blower are accordingly controlled, to prevent indoor evaporator frosting；
If the first temperature value T1 is greater than the first temperature threshold, controls compressor and inside and outside blower is current according to air conditioner
The parameter of setting is run；
If the first temperature value T1 is greater than second temperature threshold value, and is less than or equal to the first temperature threshold, then compressor is controlled
It is run according to current frequency, and controls inside and outside blower and run according to current revolving speed；
If the first temperature value T1 is greater than third temperature threshold, and is less than or equal to second temperature threshold value, then compressor is controlled
To be run lower than current frequency, or, control compressor is lower than current frequency operation, and control inner blower revolving speed liter
High, outer rotation speed of fan reduces；
If the first temperature value T1 is less than or equal to third temperature threshold, compressor and inside and outside fan parking are controlled；
Wherein, the method also includes: when the first temperature value T1 be less than or equal to second temperature threshold value when, if the first temperature value T1
And the difference of second temperature value T2 is less than the first preset threshold Ta, or, the difference of the first temperature value T1 and third temperature value T3 are less than
Two preset threshold Tb then export the prompt information of evaporator blocking or the blocking of indoor unit return air inlet to user.
2. the method according to claim 1, wherein the control compressor is lower than current frequency to run,
It specifically includes:
Controlling compressor every preset time period reduces predeterminated frequency value, until the first temperature value T1 in subsequent cycle is no longer full
Foot is greater than third temperature threshold, and less than or equal to until this condition of second temperature threshold value.
3. outer rotation speed of fan drops the method according to claim 1, wherein the control inner blower revolving speed increases
It is low, it specifically includes:
It controls inner blower revolving speed and increases 50-100rad/min, outer rotation speed of fan reduces 50-100rad/min.
4. a kind of air conditioner fault reminding method characterized by comprising
In each predetermined period, the first temperature value T1 of indoor evaporator inlet, the second temperature value T2 in exit are obtained
With the third temperature value T3 in the middle part of evaporator；
If judgement knows that the difference of the first temperature value T1 and second temperature value T2 is greater than or equal to the first preset threshold Ta, and the first temperature
The difference of angle value T1 and third temperature value T3 are greater than or equal to the second preset threshold Tb, then export air conditioner to user and lack refrigerant
Prompt information, wherein Tb >=Ta/2；
Wherein, the method also includes: according to temperature range locating for second temperature value T2, according to preset control strategy to pressure
Contracting machine and/or inside and outside blower are accordingly controlled, to prevent indoor evaporator frosting；
If the second temperature value T2 is greater than the 4th temperature threshold, controls compressor and inside and outside blower is current according to air conditioner
The parameter of setting is run；
If the second temperature value T2 is greater than the 5th temperature threshold, and is less than or equal to the 4th temperature threshold, then compressor is controlled
It is run according to current frequency, and controls inside and outside blower and run according to current revolving speed；
If the second temperature value T2 is greater than the 6th temperature threshold, and is less than or equal to the 5th temperature threshold, then compressor is controlled
To be run lower than current frequency, or, control compressor is lower than current frequency operation, and control inner blower revolving speed liter
High, outer rotation speed of fan reduces；
If the second temperature value T2 is less than or equal to the 6th temperature threshold, compressor and inside and outside fan parking are controlled；
Wherein, the method also includes: when second temperature value T2 be less than or equal to five temperature thresholds when, if the first temperature value T1
And the difference of second temperature value T2 is less than the first preset threshold Ta, or, the difference of the first temperature value T1 and third temperature value T3 are less than
Two preset threshold Tb then export the prompt information of evaporator blocking or the blocking of indoor unit return air inlet to user.
5. a kind of air conditioner fault reminding method characterized by comprising
In each predetermined period, the first temperature value T1 of indoor evaporator inlet, the second temperature value T2 in exit are obtained
With the third temperature value T3 in the middle part of evaporator；
If judgement knows that the difference of the first temperature value T1 and second temperature value T2 is greater than or equal to the first preset threshold Ta, and the first temperature
The difference of angle value T1 and third temperature value T3 are greater than or equal to the second preset threshold Tb, then export air conditioner to user and lack refrigerant
Prompt information, wherein Tb >=Ta/2；
Wherein, the method also includes: according to temperature range locating for third temperature value T3, according to preset control strategy to pressure
Contracting machine and/or inside and outside blower are accordingly controlled, to prevent indoor evaporator frosting；
If the third temperature value T3 is greater than the 7th temperature threshold, controls compressor and inside and outside blower is current according to air conditioner
The parameter of setting is run；
If the third temperature value T3 is greater than the 8th temperature threshold, and is less than or equal to the 7th temperature threshold, then compressor is controlled
It is run according to current frequency, and controls inside and outside blower and run according to current revolving speed；
If the third temperature value T3 is greater than the 9th temperature threshold, and is less than or equal to the 8th temperature threshold, then compressor is controlled
To be run lower than current frequency, or, control compressor is lower than current frequency operation, and control inner blower revolving speed liter
High, outer rotation speed of fan reduces；
If the third temperature value T3 is less than or equal to the 9th temperature threshold, compressor and inside and outside fan parking are controlled；
Wherein, the method also includes:
When third temperature value T3 is less than or equal to eight temperature thresholds, if the difference of the first temperature value T1 and second temperature value T2 are small
In the first preset threshold Ta, or, the difference of the first temperature value T1 and third temperature value T3 is less than the second preset threshold Tb, then to user
Export the prompt information of evaporator blocking or the blocking of indoor unit return air inlet.
6. a kind of air conditioner fault suggestion device characterized by comprising
Module is obtained, for obtaining in each predetermined period the first temperature value T1 of indoor evaporator inlet, exit
Third temperature value T3 in the middle part of second temperature value T2 and evaporator；
Cue module, for knowing that the difference of the first temperature value T1 and second temperature value T2 is greater than or equal to the first default threshold in judgement
Value Ta, and when the difference of the first temperature value T1 and third temperature value T3 are greater than or equal to the second preset threshold Tb, it is exported to user empty
Device is adjusted to lack the prompt information of refrigerant, wherein Tb >=Ta/2；
Wherein, described device further include: control module；The control module, for the temperature according to locating for the first temperature value T1
Section accordingly controls compressor and/or inside and outside blower according to preset control strategy, to prevent indoor evaporator knot
Frost；
Wherein, the control module, is specifically used for:
When the first temperature value T1 is greater than the first temperature threshold, controls compressor and inside and outside blower is current according to air conditioner
The parameter of setting is run；
When being greater than second temperature threshold value in the first temperature value T1, and being less than or equal to the first temperature threshold, compressor is controlled
It is run according to current frequency, and controls inside and outside blower and run according to current revolving speed；
When being greater than third temperature threshold in the first temperature value T1, and being less than or equal to second temperature threshold value, compressor is controlled
To be run lower than current frequency, or, control compressor is lower than current frequency operation, and control inner blower revolving speed liter
High, outer rotation speed of fan reduces；
When the first temperature value T1 is less than or equal to third temperature threshold, compressor and inside and outside fan parking are controlled；
Correspondingly, the cue module is also used to when the first temperature value T1 is less than or equal to second temperature threshold value, if judgement obtains
The difference of the first temperature value and second temperature value T2 are known less than the first preset threshold Ta, or, the first temperature value T1 and third temperature value
When the difference of T3 is less than the second preset threshold Tb, then the prompt letter of evaporator blocking or the blocking of indoor unit return air inlet is exported to user
Breath.
7. device according to claim 6, which is characterized in that the control module is in control compressor to be lower than currently
When frequency is run, it is specifically used for:
Controlling compressor every preset time period reduces predeterminated frequency value, until the first temperature value T1 obtained in subsequent cycle is not
Meet again greater than third temperature threshold, and less than or equal to until this condition of second temperature threshold value.
8. device according to claim 6, which is characterized in that the control module is increased in control inner blower revolving speed, outside
When rotation speed of fan reduces, it is specifically used for:
It controls inner blower revolving speed and increases 50-100rad/min, outer rotation speed of fan reduces 50-100rad/min.
9. a kind of air conditioner fault suggestion device characterized by comprising
Module is obtained, for obtaining in each predetermined period the first temperature value T1 of indoor evaporator inlet, exit
Third temperature value T3 in the middle part of second temperature value T2 and evaporator；
Cue module, for knowing that the difference of the first temperature value T1 and second temperature value T2 is greater than or equal to the first default threshold in judgement
Value Ta, and when the difference of the first temperature value T1 and third temperature value T3 are greater than or equal to the second preset threshold Tb, it is exported to user empty
Device is adjusted to lack the prompt information of refrigerant, wherein Tb >=Ta/2；
Wherein, described device further include: control module；The control module is used for the humidity province according to locating for second temperature value T2
Between, compressor and/or inside and outside blower are accordingly controlled according to preset control strategy, to prevent indoor evaporator frosting；
Wherein, the control module, is specifically used for:
When the second temperature value T2 is greater than four temperature thresholds, controls compressor and inside and outside blower is current according to air conditioner
The parameter of setting is run；
When being greater than the 5th temperature threshold in the second temperature value T2, and being less than or equal to four temperature thresholds, compressor is controlled
It is run according to current frequency, and controls inside and outside blower and run according to current revolving speed；
When being greater than the 6th temperature threshold in the second temperature value T2, and being less than or equal to five temperature thresholds, compressor is controlled
To be run lower than current frequency, or, control compressor is lower than current frequency operation, and control inner blower revolving speed liter
High, outer rotation speed of fan reduces；
When the second temperature value T2 is less than or equal to six temperature thresholds, compressor and inside and outside fan parking are controlled；
Correspondingly, the cue module is also used to when second temperature value T2 is less than or equal to five temperature thresholds, if judgement obtains
The difference of the first temperature value and second temperature value T2 are known less than the first preset threshold Ta, or, the first temperature value T1 and third temperature value
When the difference of T3 is less than the second preset threshold Tb, then the prompt letter of evaporator blocking or the blocking of indoor unit return air inlet is exported to user
Breath.
10. a kind of air conditioner fault suggestion device characterized by comprising
Module is obtained, for obtaining in each predetermined period the first temperature value T1 of indoor evaporator inlet, exit
Third temperature value T3 in the middle part of second temperature value T2 and evaporator；
Cue module, for knowing that the difference of the first temperature value T1 and second temperature value T2 is greater than or equal to the first default threshold in judgement
Value Ta, and when the difference of the first temperature value T1 and third temperature value T3 are greater than or equal to the second preset threshold Tb, it is exported to user empty
Device is adjusted to lack the prompt information of refrigerant, wherein Tb >=Ta/2；
Wherein, described device further include: control module；The control module is used for the humidity province according to locating for third temperature value T3
Between, compressor and/or inside and outside blower are accordingly controlled according to preset control strategy, to prevent indoor evaporator frosting；
Wherein, the control module, is specifically used for:
When the third temperature value T3 is greater than seven temperature thresholds, controls compressor and inside and outside blower is current according to air conditioner
The parameter of setting is run；
When being greater than the 8th temperature threshold in the third temperature value T3, and being less than or equal to seven temperature thresholds, compressor is controlled
It is run according to current frequency, and controls inside and outside blower and run according to current revolving speed；
When being greater than the 9th temperature threshold in the third temperature value T3, and being less than or equal to eight temperature thresholds, compressor is controlled
To be run lower than current frequency, or, control compressor is lower than current frequency operation, and control inner blower revolving speed liter
High, outer rotation speed of fan reduces；
When the third temperature value T3 is less than or equal to nine temperature thresholds, compressor and inside and outside fan parking are controlled；
Correspondingly, the cue module is also used to when third temperature value T3 is less than or equal to eight temperature thresholds, if judgement obtains
The difference of the first temperature value and second temperature value T2 are known less than the first preset threshold Ta, or, the first temperature value T1 and third temperature value
When the difference of T3 is less than the second preset threshold Tb, then the prompt letter of evaporator blocking or the blocking of indoor unit return air inlet is exported to user
Breath.
11. a kind of air conditioner, which is characterized in that including the air conditioner fault prompt as described in any one of claim 6~10
Device.
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| CN107525208A (en) * | 2017-07-10 | 2017-12-29 | 珠海格力电器股份有限公司 | Lack of fluorine of air-conditioners detection method and device |
| CN108204657B (en) * | 2017-12-29 | 2020-07-28 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner and computer readable storage medium |
| CN108397857B (en) * | 2018-01-22 | 2020-08-25 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner and air conditioner |
| CN109210698B (en) * | 2018-09-10 | 2020-11-03 | 青岛海尔空调器有限总公司 | Control method for air conditioner freezing protection |
| CN109323362B (en) * | 2018-09-30 | 2022-02-25 | 广东美的制冷设备有限公司 | Refrigerant leakage fault processing method and system and air conditioner |
| CN111189173B (en) * | 2018-11-14 | 2021-09-21 | 重庆海尔空调器有限公司 | Air conditioner and anti-freezing control method thereof |
| CN109579231B (en) * | 2018-11-20 | 2021-01-29 | 宁波奥克斯电气股份有限公司 | Water pan fault detection and control method and device |
| CN109654663B (en) * | 2018-12-24 | 2021-01-01 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner fault prompting method and device and air conditioner |
| CN110094835A (en) * | 2019-05-21 | 2019-08-06 | 宁波奥克斯电气股份有限公司 | A kind of cold medium flux adjusting method, device and air conditioner |
| CN112019009A (en) * | 2020-08-31 | 2020-12-01 | 广东美的暖通设备有限公司 | System abnormal operation processing method, processing device and computer readable storage medium |
| CN112240623B (en) * | 2020-09-30 | 2022-05-31 | 重庆海尔空调器有限公司 | Control method of air conditioner and air conditioner |
| CN114234359B (en) * | 2021-11-09 | 2023-03-28 | 海信（广东）空调有限公司 | Air conditioner and refrigerant leakage detection method thereof |
| CN113944983B (en) * | 2021-11-26 | 2022-11-25 | 宁波奥克斯电气股份有限公司 | Control method of air conditioner and air conditioner |
| CN114659232B (en) * | 2022-05-10 | 2024-03-12 | 长虹美菱股份有限公司 | Refrigerator and refrigerant leakage detection method thereof |
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| CN100451473C (en) * | 2006-10-12 | 2009-01-14 | 珠海格力电器股份有限公司 | Air conditioner with refrigerating medium lack and accident detection functions and method for detecting accidents |
| JP2012002413A (en) * | 2010-06-16 | 2012-01-05 | Panasonic Corp | Air conditioner |
| CN104949411B (en) * | 2015-06-09 | 2018-07-17 | 广东美的暖通设备有限公司 | A kind of refrigerant amount detecting device, air-conditioning and detection method with the detection device |
| CN106091246B (en) * | 2016-06-14 | 2018-09-25 | 顺德职业技术学院 | Air conditioner remote control operation troubles judgment method |
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