CN106839326A - 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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- CN106839326A CN106839326A CN201710114826.4A CN201710114826A CN106839326A CN 106839326 A CN106839326 A CN 106839326A CN 201710114826 A CN201710114826 A CN 201710114826A CN 106839326 A CN106839326 A CN 106839326A
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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
-
- 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
Abstract
The invention provides a kind of air conditioner fault reminding method, device and air-conditioner, the air conditioner fault reminding method includes:The 3rd temperature value T3 in the middle part of the first temperature value T1, the second temperature value T2 in exit and evaporator of indoor evaporator porch is obtained in each predetermined period;If judgement knows that the difference of the first temperature value T1 and second temperature value T2 is more than or equal to the first predetermined threshold value Ta, and first temperature value T1 and the 3rd temperature value T3 difference be more than or equal to the second predetermined threshold value Tb, then lack the prompt message of refrigerant to user's output air-conditioner, wherein, Tb >=Ta/2.The air conditioner fault reminding method that the present invention is provided, the present invention can help user to predict the imminent failure of air-conditioner in advance or inform the reason for failure occurs after failure generation, so that user carries out timely and effective treatment.
Description
Technical field
The present embodiments relate to air-conditioning technical field, and in particular to a kind of air conditioner fault reminding method, device and sky
Adjust device.
Background technology
Lack the custom and knowledge of maintenance air-conditioner on ordinary days with the long-term use of air-conditioner, especially user, thus lead
Air-conditioner is caused to be relatively easy to a kind of failure occur:I.e. air conditioner room unit freezes.
Causing air conditioner room unit freezeout mainly has at 2 points the reason for appearance, one kind is too many indoor set dust, is steamed
Hair device is all blocked by dust, and heat transfer effect is substantially reduced, and is caused heat to dissipate and is not gone out, and evaporator own temperature is constantly reduced,
Ultimately result in 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 cannot often predict when indoor set will freeze failure, it is impossible to carry out advanced processing, or
Freeze also judge to be caused due to what reason after failure occurs, thus timely and effective treatment cannot be carried out.
The content 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 for failure occurs after failure generation,
So that user carries out timely and effective treatment.
In order to solve the above technical problems, the present invention provides following technical scheme:
In a first aspect, the invention provides a kind of air conditioner fault reminding method, including:
In each predetermined period, the first temperature value T1, the second temperature in exit of indoor evaporator porch are obtained
The 3rd temperature value T3 in the middle part of value T2 and evaporator;
If judgement knows the difference of the first temperature value T1 and second temperature value T2 more than or equal to the first predetermined threshold value Ta, and the
The difference of one temperature value T1 and the 3rd temperature value T3 is more than or equal to the second predetermined threshold value Tb, then lack cold to user's output air-conditioner
The prompt message of matchmaker, wherein, Tb >=Ta/2.
Further, methods described also includes:
Temperature range according to residing for the first temperature value T1, according to default control strategy to compressor and/or interior exogenous wind
Machine is accordingly controlled, to prevent indoor evaporator frosting;
Or,
Temperature range according to residing for second temperature value T2, according to default control strategy to compressor and/or interior exogenous wind
Machine is accordingly controlled, to prevent indoor evaporator frosting;
Or,
Temperature range according to residing for the 3rd temperature value T3, according to default control strategy to compressor and/or interior exogenous wind
Machine is accordingly controlled, to prevent indoor evaporator frosting.
Further, the temperature range according to residing for the first temperature value T1, according to default control strategy to compression
Machine and/or inside and outside blower fan are accordingly controlled, and to prevent indoor evaporator frosting, are specifically included:
If the first temperature value T1 is more than the first temperature threshold, control compressor and inside and outside blower fan are according to air-conditioner
The parameter of current setting is run;
If the first temperature value T1 is more than second temperature threshold value, and less than or equal to the first temperature threshold, then control is pressed
Contracting machine runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
If the first temperature value T1 is more than the 3rd temperature threshold, and less than or equal to second temperature threshold value, then control is pressed
Contracting machine runs with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed
Raise, outer rotation speed of fan is reduced;
If the first temperature value T1 is less than or equal to the 3rd temperature threshold, compressor and inside and outside fan parking are controlled.
Further, the control compressor runs with less than current frequency, specifically includes:
Control compressor reduces predeterminated frequency value every preset time period, until the first temperature value T1 in subsequent cycle is not
Meet again more than the 3rd temperature threshold, and less than or equal to untill second temperature threshold value this condition.
Further, the control inner blower rotating speed is raised, outer rotation speed of fan reduction, is specifically included:
Control inner blower rotating speed raises 50-100rad/min, outer rotation speed of fan reduction 50-100rad/min.
Further, methods described 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 predetermined threshold value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then to
The prompt message that user's output evaporator is blocked or indoor set return air inlet is blocked.
Further, the temperature range according to residing for second temperature value T2, according to default control strategy to compression
Machine and/or inside and outside blower fan are accordingly controlled, and to prevent indoor evaporator frosting, are specifically included:
If the second temperature value T2 is more than the 4th temperature threshold, control compressor and inside and outside blower fan are according to air-conditioner
The parameter of current setting is run;
If the second temperature value T2 is more than the 5th temperature threshold, and less than or equal to the 4th temperature threshold, then control is pressed
Contracting machine runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
If the second temperature value T2 is more than the 6th temperature threshold, and less than or equal to the 5th temperature threshold, then control is pressed
Contracting machine runs with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed
Raise, outer rotation speed of fan is reduced;
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, methods described 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 predetermined threshold value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then to
The prompt message that user's output evaporator is blocked or indoor set return air inlet is blocked.
Further, the temperature range according to residing for the 3rd temperature value T3, according to default control strategy to compression
Machine and/or inside and outside blower fan are accordingly controlled, and to prevent indoor evaporator frosting, are specifically included:
If the 3rd temperature value T3 is more than the 7th temperature threshold, control compressor and inside and outside blower fan are according to air-conditioner
The parameter of current setting is run;
If the 3rd temperature value T3 is more than the 8th temperature threshold, and less than or equal to the 7th temperature threshold, then control is pressed
Contracting machine runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
If the 3rd temperature value T3 is more than the 9th temperature threshold, and less than or equal to the 8th temperature threshold, then control is pressed
Contracting machine runs with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed
Raise, outer rotation speed of fan is reduced;
If the 3rd temperature value T3 is less than or equal to the 9th temperature threshold, compressor and inside and outside fan parking are controlled.
Further, methods described also includes:
When the 3rd 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 predetermined threshold value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then to
The prompt message that user's output evaporator is blocked or indoor set return air inlet is blocked.
Second aspect, present invention also offers a kind of air conditioner fault suggestion device, including:
Acquisition module, the first temperature value T1, outlet for obtaining indoor evaporator porch in each predetermined period
The 3rd temperature value T3 in the middle part of the second temperature value T2 and evaporator at place;
Reminding module, for judging that the difference for knowing the first temperature value T1 and second temperature value T2 is pre- more than or equal to first
If threshold value Ta, and the first temperature value T1 and the 3rd temperature value T3 difference be more than or equal to the second predetermined threshold value Tb when, it is defeated to user
Go out the prompt message that air-conditioner lacks refrigerant, wherein, Tb >=Ta/2.
Further, described device also includes:Control module;
The control module, for the temperature range according to residing for the first temperature value T1, according to default control strategy pair
Compressor and/or inside and outside blower fan are accordingly controlled, to prevent indoor evaporator frosting;
Or,
For the temperature range according to residing for second temperature value T2, according to default control strategy to compressor and/or interior
Outer blower fan is accordingly controlled, to prevent indoor evaporator frosting;
Or,
For the temperature range according to residing for the 3rd temperature value T3, according to default control strategy to compressor and/or interior
Outer blower fan is accordingly controlled, to prevent indoor evaporator frosting.
Further, the control module, specifically for:
When the first temperature value T1 is more than the first temperature threshold, control compressor and inside and outside blower fan are according to air-conditioner
The parameter of current setting is run;
It is more than second temperature threshold value in the first temperature value T1, and during less than or equal to the first temperature threshold, control pressure
Contracting machine runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
It is more than the 3rd temperature threshold in the first temperature value T1, and during less than or equal to second temperature threshold value, control pressure
Contracting machine runs with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed
Raise, outer rotation speed of fan is reduced;
When the first temperature value T1 is less than or equal to three temperature thresholds, compressor and inside and outside fan parking are controlled.
Further, the control module is when controlling compressor to be run less than current frequency, specifically for:
Control compressor reduces predeterminated frequency value every preset time period, until the first temperature value obtained in subsequent cycle
T1 is no longer met more than the 3rd temperature threshold, and less than or equal to untill second temperature threshold value this condition.
Further, the control module is raised in control inner blower rotating speed, during outer rotation speed of fan reduction, specifically for:
Control inner blower rotating speed raises 50-100rad/min, outer rotation speed of fan reduction 50-100rad/min.
Further, the reminding module, is additionally operable to when the first temperature value T1 is less than or equal to second temperature threshold value, if
Judgement knows that the first temperature value and the difference of second temperature value T2 are less than the first predetermined threshold value Ta, or, the first temperature value T1 and the 3rd
When the difference of temperature value T3 is less than the second predetermined threshold value Tb, then to carrying that user's output evaporator blocking or indoor set return air inlet are blocked
Show information.
Further, the control module, specifically for:
When the second temperature value T2 is more than four temperature thresholds, control compressor and inside and outside blower fan are according to air-conditioner
The parameter of current setting is run;
It is more than the 5th temperature threshold in the second temperature value T2, and during less than or equal to four temperature thresholds, control pressure
Contracting machine runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
It is more than the 6th temperature threshold in the second temperature value T2, and during less than or equal to five temperature thresholds, control pressure
Contracting machine runs with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed
Raise, outer rotation speed of fan is reduced;
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 reminding module, is additionally operable to when second temperature value T2 is less than or equal to five temperature thresholds, if
Judgement knows that the first temperature value and the difference of second temperature value T2 are less than the first predetermined threshold value Ta, or, the first temperature value T1 and the 3rd
When the difference of temperature value T3 is less than the second predetermined threshold value Tb, then to carrying that user's output evaporator blocking or indoor set return air inlet are blocked
Show information.
Further, the control module, specifically for:
When the 3rd temperature value T3 is more than seven temperature thresholds, control compressor and inside and outside blower fan are according to air-conditioner
The parameter of current setting is run;
It is more than the 8th temperature threshold in the 3rd temperature value T3, and during less than or equal to seven temperature thresholds, control pressure
Contracting machine runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
It is more than the 9th temperature threshold in the 3rd temperature value T3, and during less than or equal to eight temperature thresholds, control pressure
Contracting machine runs with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed
Raise, outer rotation speed of fan is reduced;
When the 3rd temperature value T3 is less than or equal to nine temperature thresholds, compressor and inside and outside fan parking are controlled.
Further, the reminding module, is additionally operable to when the 3rd temperature value T3 is less than or equal to eight temperature thresholds, if
Judgement knows that the first temperature value and the difference of second temperature value T2 are less than the first predetermined threshold value Ta, or, the first temperature value T1 and the 3rd
When the difference of temperature value T3 is less than the second predetermined threshold value Tb, then to carrying that user's output evaporator blocking or indoor set return air inlet are blocked
Show information.
The third aspect, present invention also offers a kind of air-conditioner, including air conditioner fault suggestion device as described above.
As shown from the above technical solution, the air conditioner fault reminding method that the present invention is provided, obtains in each predetermined period
Take the 3rd temperature value in the middle part of the first temperature value T1, the second temperature value T2 in exit and the evaporator of indoor evaporator porch
T3, then the relation according to the first temperature value T1, second temperature value T2 and the 3rd temperature value T3 to user export prompt message, with
Help user to predict the imminent failure of air-conditioner in advance or inform the reason for failure occurs after failure generation, so that
User carries out timely and effective treatment, and then effectively protects air-conditioner.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of flow chart of the air conditioner fault reminding method that one embodiment of the invention is provided;
Fig. 2 is another flow chart of the air conditioner fault reminding method that one embodiment of the invention is provided;
Fig. 3 is another flow chart for the air conditioner fault reminding method that one embodiment of the invention is provided;
Fig. 4 is the structural representation of the air conditioner fault suggestion device that another embodiment of the present invention is provided.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, clear, complete description is carried out to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
For the problems of the prior art, the present invention provides a kind of air conditioner fault reminding method, air conditioner fault prompting
Device and air-conditioner, the temperature value according to indoor evaporator porch, exit and middle part of the invention is to air conditioner room unit
The reason for breaking down is pointed out, so that user timely and accurately knows the reason for air conditioner room unit breaks down,
Such that it is able to timely and effectively be processed.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 that one embodiment of the invention is provided, referring to Fig. 1, this hair
The air conditioner fault reminding method that a bright embodiment is provided comprises the following steps:
Step 101:In each predetermined period, the first temperature value T1 of indoor evaporator porch, exit are obtained
The 3rd 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 the 3rd temperature value T3 meet following relations:
The difference of the first temperature value T1 and second temperature value T2 is more than or equal to the first predetermined threshold value Ta, and the temperature of the first temperature value T1 and the 3rd
The difference of angle value T3 is more than or equal to the second predetermined threshold value Tb, wherein, Tb >=Ta/2.If meeting, step 103a is performed.
In this step, due to the first temperature value T1 be the temperature of indoor evaporator porch, second temperature value T2 be room
Temperature, the 3rd 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, heat exchanger heat transfer temperature difference is very big indoors to illustrate refrigerant, in pipe the refrigerant that flows through very little, so be likely to result in room
Interior machine freezes, and now can be determined that system lacks refrigerant, so carrying for refrigerant can be lacked to user's output air-conditioner
Show information.
It is understood that when indoor evaporator includes a plurality of branch road, the first temperature value of indoor evaporator porch
T1 be temperature value of the evaporator at the preceding main entrance of branch, or for each branch road porch temperature average value.Indoor steaming
The second temperature value T2 in hair device exit is the temperature in exit of each branch road of evaporator after collecting, or going out for each branch road
The average value of the temperature at mouthful.The 3rd temperature value T3 in the middle part of indoor evaporator is the average of each branch road middle portion temperature of evaporator
Value.
If for example, Ta=10 DEG C, Tb=6 DEG C, T1=11 DEG C, T2=0 DEG C, T3=2 DEG C, illustrating that now refrigerant is indoors
Heat exchanger heat transfer temperature difference is very big, in pipe the refrigerant that flows through very little, so be possible to cause within a period of time in future
Indoor set freezes, and now can be determined that system lacks refrigerant, thus can lack carrying for refrigerant to user's output air-conditioner
Show information, so that user fills refrigerant in time, to prevent from causing air-conditioner normally to run because of indoor set failure, do as far as possible
To preventing in advance.
And for example, if Ta=15 DEG C, Tb=8 DEG C, T1=8 DEG C, T2=-8 DEG C, T3=-1 DEG C, illustrate that now refrigerant is in room
Interior heat exchanger heat transfer temperature difference is very big, and the refrigerant flowed through in pipe very little, so causing indoor set to freeze, can now be sentenced
Determine system and lack refrigerant, thus the prompt message that air-conditioner lack refrigerant can be exported to user, filled in time so as to user cold
Matchmaker.It is understood that in this case, indoor set actually has occurred and that and freezes, specifically whether shut down, it is necessary to see jelly frost
The corresponding control strategy that thickness or the air-conditioner inside freezed are set.
Step 103:Lack the prompt message of refrigerant to user's output air-conditioner.
In this step, when the prompt message of refrigerant is lacked to user's output air-conditioner, can machine indoors display
Screen display word " air-conditioner lacks refrigerant " or other similar prompt messages, for example, show " REFRI ", for representing air-conditioning
Device lacks refrigerant, so may remind the user that oneself or looks for maintenance personal to carry out refrigerant punching and notes.
From the scheme recorded above, air conditioner fault reminding method provided in an embodiment of the present invention is default at each
The in the middle part of the first temperature value T1, the second temperature value T2 in exit and evaporator of indoor evaporator porch is obtained in cycle
Three temperature value T3, then the relation according to the first temperature value T1, second temperature value T2 and the 3rd temperature value T3 to user output carry
Show information, with help user predict in advance the imminent failure of air-conditioner or failure generation after inform failure occur original
Cause, so that user carries out timely and effective treatment, and then effectively protects air-conditioner.
In a kind of optional embodiment, air conditioner fault reminding method provided in an embodiment of the present invention is except that can play
Indoor set freezes outside the effect of fault cues, can also be tried one's best by certain control device and avoid the hair of indoor set freezeout
It is raw.
In the present embodiment, referring to Fig. 2, above-mentioned air conditioner fault reminding method also includes:Step 104.
Step 104:Temperature range according to residing for the first temperature value T1, according to default control strategy to compressor and/
Or inside and outside blower fan is accordingly controlled, to prevent indoor evaporator frosting;Or, the humidity province according to residing for second temperature value T2
Between, compressor and/or inside and outside blower fan are accordingly controlled according to default control strategy, to prevent indoor evaporator frosting;
Or, the temperature range according to residing for the 3rd temperature value T3, is carried out according to default control strategy to compressor and/or inside and outside blower fan
Corresponding control, to prevent indoor evaporator frosting.
In the present embodiment, the temperature range according to residing for the first temperature value T1 that step 101 is obtained, according to default
Control strategy is accordingly controlled compressor and/or inside and outside blower fan, to prevent indoor evaporator frosting.
For example, when the first temperature value T1 is in and does not have the possible temperature range of frosting so that air-conditioner is according to original
The running parameter operation for first setting, without carrying out Special controlling or limitation to compressor and/or inside and outside blower fan.When the described 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 the inside and outside blower fan of control
Current rotating speed is maintained to run), to prevent indoor evaporator frosting.And for example, when the first temperature value T1 is in will frosting
During temperature range, control compressor does frequency reducing operation treatment (and reducing outer rotation speed of fan, improve inner blower rotating speed), to prevent
Indoor evaporator frosting.
It can be seen that, this piecewise interval control methods that present embodiment is provided so that air-conditioning regulation is more fine, is prevented effectively from
Indoor set freezes the appearance of situation.
In a kind of optional embodiment, a kind of specific implementation of above-mentioned steps 104 is:
If 1. the first temperature value T1 is more than the first temperature threshold, control compressor and inside and outside blower fan are according to air-conditioning
The parameter of device currently setting is run.
Here, control compressor and inside and outside blower fan carry out operation and are appreciated that according to the parameter that air-conditioner currently sets
For:Control compressor, inside and outside blower fan are run according to the parameter that user currently sets.Here, the parameter of user's currently setting
Refer generally to the running parameter of the air-conditioner that user sets according to current environmental temperature and to the requirement of comfort level.For example, false
If current room temperature is 33 DEG C, the target temperature that user sets is 28 DEG C, then the parameter of current setting described here refers to:Air-conditioning
33 DEG C of 28 DEG C of target temperature and current room temperature that device sets according to user and the relevant operating parameter that determines, including:Compressor
Working frequency, the rotating speed of inside and outside blower fan etc..
Here, when the first temperature value T1 is more than the first temperature threshold, illustrate that now the first temperature value T1 is in not
There is the possible temperature range of frosting, now need to only cause that compressor, inside and outside blower fan are run according to original parameter, nothing
Special controlling need to be carried out.
If 2. the first temperature value T1 is more than second temperature threshold value, and less than or equal to the first temperature threshold, then controls
Compressor runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed, to prevent indoor evaporator
Frosting.
Here, when the first temperature value T1 is more than second temperature threshold value, and during less than or equal to the first temperature threshold, say
Bright now described first temperature value T1 is in the temperature range for being possible to frosting, now needs the frequency for controlling compressor to remain current
Rate is run, and the inside and outside blower fan of control maintains current rotating speed operation, to prevent indoor evaporator frosting.
If 3. the first temperature value T1 is more than the 3rd temperature threshold, and less than or equal to second temperature threshold value, then controls
Compressor runs with less than current frequency, to prevent indoor evaporator frosting, or, control compressor is with less than current frequency
Operation, and control inner blower rotating speed is raised, outer rotation speed of fan is reduced, to prevent indoor evaporator frosting.
Here, when the first temperature value T1 is more than the 3rd temperature threshold, and during less than or equal to second temperature threshold value, say
Bright now described first temperature value T1 be in will frosting temperature range, should now control compressor do frequency reducing operation process,
Or control compressor does frequency reducing operation treatment and reduces outer rotation speed of fan, inner blower rotating speed is improved, to prevent indoor evaporator
Frosting.
If 4. the first temperature value T1 is less than or equal to the 3rd temperature threshold, control compressor and inside and outside blower fan stop
Machine, to prevent indoor evaporator frosting.
Here, when the first temperature value T1 is less than or equal to three temperature thresholds, now first temperature is illustrated
Value T1 is in the temperature range of frosting, compressor and inside and outside fan parking should be now controlled, to protect air-conditioner.
Here, the span of first temperature threshold is generally 3.5~5 DEG C, is such as 4 DEG C;The second temperature threshold
The span of value is generally 1.5~3.5 DEG C, is such as 2 DEG C;The span of the 3rd temperature threshold be generally 0.5 DEG C~
1.5 DEG C, be such as 1 DEG C.
So it can be seen from above-mentioned control strategy, as 4 DEG C of T1 >, it is now in the stage without limitation, need to only causing
Compressor, inside and outside blower fan are run according to original parameter.
It it is now the limit frequency stage, it is ensured that the compressor frequency in this stage, inside and outside rotation speed of fan is not when 2 DEG C of < T1≤4 DEG C
Increase again, maintain frequency now and rotating speed to continue to run with;
It is now the frequency reducing stage when 1 DEG C of < T1≤2 DEG C, now needs to reduce the frequency of compressor.In order to take into account refrigeration
Ability, can set compressor every preset time period reduction predeterminated frequency value here, for example, 2Hz was reduced every 5 minutes, directly
To T1 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 untill this temperature range) while, control inner blower rotating speed is raised and controls outer blower fan
Rotating speed reduction.For example, machine rotating speed raises 50-100rad/min, outer rotation speed of fan reduction 50-100rad/min in control.Wherein,
Inner blower rotating speed is raised, outer rotation speed of fan reduction, can aid in raising inner side heat exchanger heat transfer effect, reduces outside heat exchanger
Heat transfer effect, effectively suppresses frosting.
When T1≤1 DEG C, illustrate that now frost layer is very thick, compressor, internal-external machine blower fan 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 porch is obtained, then the temperature range according to residing for the first temperature value T1, according to area
Between discrete method control air-conditioner operation so that regulation it is more fine, effectively prevent the appearance that indoor set freezes situation, and then
The security of air-conditioner and the reliability of refrigeration system can be effectively improved.
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
Include: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 is less than the first predetermined threshold value Ta, or, the first temperature value T1 and the 3rd temperature value T3
Difference be less than the second predetermined threshold value Tb, then perform step 105.
Step 105:To the prompt message that user's output evaporator blocking or indoor set return air inlet are blocked.
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 stage, if now judging the difference for knowing the first temperature value and second temperature value T2 less than the first default threshold
Value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then illustrates that now air-conditioner is not
Lack refrigerant, then can determine whether it is that indoor machine evaporation there occurs that blocking or indoor set return air inlet there occurs blocking, thus
The prompt message that can be blocked to user's output evaporator blocking or indoor set return air inlet.
Wherein, in the prompt message blocked to user's output evaporator blocking or indoor set return air inlet, can be indoors
The display screen display word " evaporator is blocked or indoor set return air inlet is blocked " of machine or other similar prompt messages, for example, show
Show " FROST ", for representing that evaporator is blocked or indoor set return air inlet is blocked, so may remind the user that cleaning screen pack in time
And evaporator.
Understand from the description above, the air conditioner fault reminding method that present embodiment is provided, by some simple temperature
Point judges, you can corresponding prompt message is shown to user, to facilitate user to shift to an earlier date or be processed accordingly in time, it is to avoid empty
Adjust device to be damaged, provide users with the convenient.
In a kind of optional embodiment, another specific implementation of above-mentioned steps 104 is:
If 1. the second temperature value T2 is more than the 4th temperature threshold, control compressor and inside and outside blower fan are according to air-conditioning
The parameter of device currently setting is run.
Here, when the second temperature value T2 is more than four temperature thresholds, illustrate that now second temperature value T2 is in not
There is the possible temperature range of frosting, now need to only cause that compressor, inside and outside blower fan are run according to original parameter, nothing
Special controlling need to be carried out.
If 2. the second temperature value T2 is more than the 5th temperature threshold, and less than or equal to the 4th temperature threshold, then controls
Compressor runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed, to prevent indoor evaporator
Frosting.
Here, when the second temperature value T2 is more than the 5th temperature threshold, and during less than or equal to four temperature thresholds, say
Bright now described second temperature value T2 is in the temperature range for being possible to frosting, now needs the frequency for controlling compressor to remain current
Rate is run, and the inside and outside blower fan of control maintains current rotating speed operation, to prevent indoor evaporator frosting.
If 3. the second temperature value T2 is more than the 6th temperature threshold, and less than or equal to the 5th temperature threshold, then controls
Compressor runs with less than current frequency, to prevent indoor evaporator frosting, or, control compressor is with less than current frequency
Operation, and control inner blower rotating speed is raised, outer rotation speed of fan is reduced, to prevent indoor evaporator frosting.
Here, when the second temperature value T2 is more than the 6th temperature threshold, and during less than or equal to five temperature thresholds, say
Bright now described second temperature value T2 be in will frosting temperature range, should now control compressor do frequency reducing operation process,
Or control compressor does frequency reducing operation treatment and reduces outer rotation speed of fan, inner blower rotating speed is improved, to prevent indoor evaporator
Frosting.
If 4. the second temperature value T2 is less than or equal to the 6th temperature threshold, control compressor and inside and outside blower fan stop
Machine, to prevent indoor evaporator frosting.
Here, when the second temperature value T2 is less than or equal to six temperature thresholds, the now second temperature is illustrated
Value T2 is in the temperature range of frosting, compressor and inside and outside fan parking should be now controlled, to protect air-conditioner.
Here, the span of the 4th temperature threshold is generally 1.5~3 DEG C, is such as 2 DEG C;5th temperature threshold
The span of value is generally 0.5~1.5 DEG C, is such as 1 DEG C;The span of the 6th temperature threshold be generally -0.5 DEG C~
0.5 DEG C, be such as 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 is less than the first predetermined threshold value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3
Less than the second predetermined threshold value Tb, the then prompt message for being blocked to user's output evaporator blocking or indoor set return air inlet.
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 stage, if now judging the difference for knowing the first temperature value and second temperature value T2 less than the first default threshold
Value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then illustrates that now air-conditioner is not
Lack refrigerant, then can determine whether it is that indoor machine evaporation there occurs that blocking or indoor set return air inlet there occurs blocking, thus
The prompt message that can be blocked to user's output evaporator blocking or indoor set return air inlet.
In a kind of optional embodiment, another specific implementation of above-mentioned steps 104 is:
If 1. the 3rd temperature value T3 is more than the 7th temperature threshold, control compressor and inside and outside blower fan are according to air-conditioning
The parameter of device currently setting is run.
Here, when the 3rd temperature value T3 is more than seven temperature thresholds, illustrate that now the 3rd temperature value T3 is in not
There is the possible temperature range of frosting, now need to only cause that compressor, inside and outside blower fan are run according to original parameter, nothing
Special controlling need to be carried out.
If 2. the 3rd temperature value T3 is more than the 8th temperature threshold, and less than or equal to the 7th temperature threshold, then controls
Compressor runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed, to prevent indoor evaporator
Frosting.
Here, when the 3rd temperature value T3 is more than the 8th temperature threshold, and during less than or equal to seven temperature thresholds, say
Bright now described 3rd temperature value T3 is in the temperature range for being possible to frosting, now needs the frequency for controlling compressor to remain current
Rate is run, and the inside and outside blower fan of control maintains current rotating speed operation, to prevent indoor evaporator frosting.
If 3. the 3rd temperature value T3 is more than the 9th temperature threshold, and less than or equal to the 8th temperature threshold, then controls
Compressor runs with less than current frequency, to prevent indoor evaporator frosting, or, control compressor is with less than current frequency
Operation, and control inner blower rotating speed is raised, outer rotation speed of fan is reduced, to prevent indoor evaporator frosting.
Here, when the 3rd temperature value T3 is more than the 9th temperature threshold, and during less than or equal to eight temperature thresholds, say
Bright now described 3rd temperature value T3 be in will frosting temperature range, should now control compressor do frequency reducing operation process,
Or control compressor does frequency reducing operation treatment and reduces outer rotation speed of fan, inner blower rotating speed is improved, to prevent indoor evaporator
Frosting.
If 4. the 3rd temperature value T3 is less than or equal to the 9th temperature threshold, control compressor and inside and outside blower fan stop
Machine, to prevent indoor evaporator frosting.
Here, when the 3rd temperature value T3 is less than or equal to nine temperature thresholds, now the 3rd temperature is illustrated
Value T3 is in the temperature range of frosting, compressor and inside and outside fan parking should be now controlled, to protect air-conditioner.
Here, the span of the 7th temperature threshold is generally 0.5~1.5 DEG C, is such as 1 DEG C;8th temperature
The span of threshold value is generally -0.5~0.5 DEG C, is such as 0 DEG C;The span of the 9th temperature threshold is generally -2.5
DEG C~-0.5 DEG C, such as it is -1 DEG C.
In a kind of optional embodiment, when the 3rd 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 is less than the first predetermined threshold value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3
Less than the second predetermined threshold value Tb, the then prompt message for being blocked to user's output evaporator blocking or indoor set return air inlet.
In the present embodiment, when the 3rd temperature value T3 is less than or equal to eight temperature thresholds, illustrate at current system
In frequency reducing stage or shutdown stage, if now judging the difference for knowing the first temperature value and second temperature value T2 less than the first default threshold
Value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then illustrates that now air-conditioner is not
Lack refrigerant, then can determine whether it is that indoor machine evaporation there occurs that blocking or indoor set return air inlet there occurs blocking, thus
The prompt message that can be blocked to user's output evaporator blocking or indoor set return air inlet.
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, the air conditioner fault suggestion device includes:Acquisition module 21 and reminding module 22, wherein:
Acquisition module 21, for obtaining the first temperature value T1 of indoor evaporator porch in each predetermined period, going out
Second temperature value T2 at mouthful and the 3rd temperature value T3 in the middle part of evaporator;
Reminding module 22, the difference for knowing the first temperature value T1 and second temperature value T2 in judgement is more than or equal to first
Predetermined threshold value, and the first temperature value T1 and the 3rd temperature value T3 difference be more than or equal to the second predetermined threshold value when, to user export
Air-conditioner lacks the prompt message of refrigerant.
In a kind of optional embodiment, referring to Fig. 4, described device also includes:Control module 23;
The control module 23, for the temperature range according to residing for the first temperature value T1, according to default control strategy
Compressor and/or inside and outside blower fan are accordingly controlled, to prevent indoor evaporator frosting;Or, being used for according to second temperature value
Temperature range residing for T2, is accordingly controlled compressor and/or inside and outside blower fan, according to default control strategy to prevent room
Interior evaporimeter frosting;Or, for the temperature range according to residing for the 3rd temperature value T3, according to default control strategy to compressor
And/or inside and outside blower fan is accordingly controlled, to prevent indoor evaporator frosting.
In a kind of optional embodiment, the control module 23, specifically for:
When the first temperature value T1 is more than the first temperature threshold, control compressor and inside and outside blower fan are according to air-conditioner
The parameter of current setting is run;
It is more than second temperature threshold value in the first temperature value T1, and during less than or equal to the first temperature threshold, control pressure
Contracting machine runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed, to prevent indoor evaporator knot
Frost;
It is more than the 3rd temperature threshold in the first temperature value T1, and during less than or equal to second temperature threshold value, control pressure
Contracting machine runs with less than current frequency, to prevent indoor evaporator frosting, or, control compressor is transported with less than current frequency
OK, and control inner blower rotating speed raise, the reduction of outer rotation speed of fan, to prevent indoor evaporator frosting;
When the first temperature value T1 is less than or equal to three temperature thresholds, 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 run in control compressor with less than current frequency
When, specifically for:
Control compressor reduces predeterminated frequency value every preset time period, until the first temperature value obtained in subsequent cycle
T1 is no longer met more than the 3rd temperature threshold, and less than or equal to untill second temperature threshold value this condition.
In a kind of optional embodiment, the control module 23 is raised in control inner blower rotating speed, outer rotation speed of fan drop
When low, specifically for:
Control inner blower rotating speed raises 50-100rad/min, outer rotation speed of fan reduction 50-100rad/min.
In a kind of optional embodiment, the reminding module 22 is additionally operable to be more than the 3rd temperature in the first temperature value T1
Threshold value and less than or equal to second temperature threshold value, or, when the first temperature value T1 is less than or equal to three temperature thresholds, if judgement is obtained
Know that the first temperature value and the difference of second temperature value T2 are less than the first predetermined threshold value Ta, or, the first temperature value T1 and the 3rd temperature value
When the difference of T3 is less than the second predetermined threshold value Tb, is then blocked to user's output evaporator or the prompting of indoor set return air inlet blocking is believed
Breath.
In a kind of optional embodiment, the control module 23, specifically for:
When the second temperature value T2 is more than four temperature thresholds, control compressor and inside and outside blower fan are according to air-conditioner
The parameter of current setting is run;
It is more than the 5th temperature threshold in the second temperature value T2, and during less than or equal to four temperature thresholds, control pressure
Contracting machine runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
It is more than the 6th temperature threshold in the second temperature value T2, and during less than or equal to five temperature thresholds, control pressure
Contracting machine runs with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed
Raise, outer rotation speed of fan is reduced;
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 reminding module 22 is additionally operable in second temperature value T2 less than or equal to the
During five temperature thresholds, if judging the difference for knowing the first temperature value and second temperature value T2 less than the first predetermined threshold value Ta, or, first
When the difference of temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then blocked or indoor set to user's output evaporator
The prompt message that return air inlet is blocked.
In a kind of optional embodiment, the control module 23, specifically for:
When the 3rd temperature value T3 is more than seven temperature thresholds, control compressor and inside and outside blower fan are according to air-conditioner
The parameter of current setting is run;
It is more than the 8th temperature threshold in the 3rd temperature value T3, and during less than or equal to seven temperature thresholds, control pressure
Contracting machine runs according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
It is more than the 9th temperature threshold in the 3rd temperature value T3, and during less than or equal to eight temperature thresholds, control pressure
Contracting machine runs with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed
Raise, outer rotation speed of fan is reduced;
When the 3rd 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 reminding module 22 is additionally operable in the 3rd temperature value T3 less than or equal to the
During eight temperature thresholds, if judging the difference for knowing the first temperature value and second temperature value T2 less than the first predetermined threshold value Ta, or, first
When the difference of temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then blocked or indoor set to user's output evaporator
The prompt message that return air inlet is blocked.
Air conditioner fault suggestion device described in the present embodiment, can be used for performing the air-conditioner event described in above-described embodiment
Barrier reminding method, its principle is similar with technique effect, no longer describes in detail herein.
Based on same inventive concept, further embodiment of this invention additionally provides a kind of air-conditioner, and the air-conditioner is included such as
Air conditioner fault suggestion device described in above example.The air-conditioner due to including above-mentioned air conditioner fault suggestion device,
Same technical problem thus can be solved, and obtains identical technique effect.
Air-conditioner provided in an embodiment of the present invention can be domestic air conditioner, or air-conditioner.
In the description of the invention, it is necessary to explanation, such as first and second or the like relational terms are only herein
Only it is used for making a distinction an entity or operation with another entity or operation, and not necessarily requires or imply these realities
There is any this actual relation or order between body or operation.And, term " including ", "comprising" or its it is any its
His variant is intended to including for nonexcludability, so that process, method, article or equipment including a series of key elements are not
Only include those key elements, but also other key elements including being not expressly set out, or also include for this process, method,
Article or the intrinsic key element of equipment.In the absence of more restrictions, by wanting that sentence "including a ..." is limited
Element, it is not excluded that also there is other identical element in the process including the key element, method, article or equipment.
Above example is merely to illustrate technical scheme, rather than its limitations;Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that:It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic;And these are changed or replace
Change, do not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (21)
1. a kind of air conditioner fault reminding method, it is characterised in that including:
In each predetermined period, the first temperature value T1, the second temperature value T2 in exit of indoor evaporator porch are obtained
With the 3rd temperature value T3 in the middle part of evaporator;
If judgement knows the difference of the first temperature value T1 and second temperature value T2 more than or equal to the first predetermined threshold value Ta, and the first temperature
The difference of angle value T1 and the 3rd temperature value T3 is more than or equal to the second predetermined threshold value Tb, then lack refrigerant to user's output air-conditioner
Prompt message, wherein, Tb >=Ta/2.
2. method according to claim 1, it is characterised in that methods described also includes:
Temperature range according to residing for the first temperature value T1, enters according to default control strategy to compressor and/or inside and outside blower fan
The corresponding control of row, to prevent indoor evaporator frosting;
Or,
Temperature range according to residing for second temperature value T2, enters according to default control strategy to compressor and/or inside and outside blower fan
The corresponding control of row, to prevent indoor evaporator frosting;
Or,
Temperature range according to residing for the 3rd temperature value T3, enters according to default control strategy to compressor and/or inside and outside blower fan
The corresponding control of row, to prevent indoor evaporator frosting.
3. method according to claim 2, it is characterised in that the temperature range according to residing for the first temperature value T1,
Compressor and/or inside and outside blower fan are accordingly controlled according to default control strategy, to prevent indoor evaporator frosting, specifically
Including:
If the first temperature value T1 is more than the first temperature threshold, control compressor and inside and outside blower fan are current according to air-conditioner
The parameter of setting is run;
If the first temperature value T1 is more than second temperature threshold value, and less than or equal to the first temperature threshold, then controls compressor
Run according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
If the first temperature value T1 is more than the 3rd temperature threshold, and less than or equal to second temperature threshold value, then controls compressor
Run with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed liter
High, outer rotation speed of fan reduction;
If the first temperature value T1 is less than or equal to the 3rd temperature threshold, compressor and inside and outside fan parking are controlled.
4. method according to claim 3, it is characterised in that the control compressor runs with less than current frequency,
Specifically include:
Control compressor reduces predeterminated frequency value every preset time period, until the first temperature value T1 in subsequent cycle is no longer full
Foot is more than the 3rd temperature threshold, and less than or equal to untill second temperature threshold value this condition.
5. method according to claim 3, it is characterised in that the control inner blower rotating speed is raised, outer rotation speed of fan drop
It is low, specifically include:
Control inner blower rotating speed raises 50-100rad/min, outer rotation speed of fan reduction 50-100rad/min.
6. the method according to any one of claim 3~5, it is characterised in that methods described also includes:
When the first temperature value T1 is less than or equal to second temperature threshold value, if the difference of the first temperature value T1 and second temperature value T2 is small
In the first predetermined threshold value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then to user
The prompt message that output evaporator is blocked or indoor set return air inlet is blocked.
7. method according to claim 2, it is characterised in that the temperature range according to residing for second temperature value T2,
Compressor and/or inside and outside blower fan are accordingly controlled according to default control strategy, to prevent indoor evaporator frosting, specifically
Including:
If the second temperature value T2 is more than the 4th temperature threshold, control compressor and inside and outside blower fan are current according to air-conditioner
The parameter of setting is run;
If the second temperature value T2 is more than the 5th temperature threshold, and less than or equal to the 4th temperature threshold, then controls compressor
Run according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
If the second temperature value T2 is more than the 6th temperature threshold, and less than or equal to the 5th temperature threshold, then controls compressor
Run with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed liter
High, outer rotation speed of fan reduction;
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.
8. method according to claim 7, it is characterised in that methods described also includes:
When second temperature value T2 is less than or equal to five temperature thresholds, if the difference of the first temperature value T1 and second temperature value T2 is small
In the first predetermined threshold value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then to user
The prompt message that output evaporator is blocked or indoor set return air inlet is blocked.
9. method according to claim 2, it is characterised in that the temperature range according to residing for the 3rd temperature value T3,
Compressor and/or inside and outside blower fan are accordingly controlled according to default control strategy, to prevent indoor evaporator frosting, specifically
Including:
If the 3rd temperature value T3 is more than the 7th temperature threshold, control compressor and inside and outside blower fan are current according to air-conditioner
The parameter of setting is run;
If the 3rd temperature value T3 is more than the 8th temperature threshold, and less than or equal to the 7th temperature threshold, then controls compressor
Run according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
If the 3rd temperature value T3 is more than the 9th temperature threshold, and less than or equal to the 8th temperature threshold, then controls compressor
Run with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed liter
High, outer rotation speed of fan reduction;
If the 3rd temperature value T3 is less than or equal to the 9th temperature threshold, compressor and inside and outside fan parking are controlled.
10. method according to claim 9, it is characterised in that methods described also includes:
When the 3rd 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 is small
In the first predetermined threshold value Ta, or, the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then to user
The prompt message that output evaporator is blocked or indoor set return air inlet is blocked.
A kind of 11. air conditioner fault suggestion devices, it is characterised in that including:
Acquisition module, for obtaining the first temperature value T1 of indoor evaporator porch, exit in each predetermined period
The 3rd temperature value T3 in the middle part of second temperature value T2 and evaporator;
Reminding module, for knowing the difference of the first temperature value T1 and second temperature value T2 more than or equal to the first default threshold in judgement
Value Ta, and the difference of the first temperature value T1 and the 3rd temperature value T3 is when being more than or equal to the second predetermined threshold value Tb, exports empty to user
Device is adjusted to lack the prompt message of refrigerant, wherein, Tb >=Ta/2.
12. devices according to claim 11, it is characterised in that described device also includes:Control module;
The control module, for the temperature range according to residing for the first temperature value T1, according to default control strategy to compression
Machine and/or inside and outside blower fan are accordingly controlled, to prevent indoor evaporator frosting;
Or,
For the temperature range according to residing for second temperature value T2, according to default control strategy to compressor and/or interior exogenous wind
Machine is accordingly controlled, to prevent indoor evaporator frosting;
Or,
For the temperature range according to residing for the 3rd temperature value T3, according to default control strategy to compressor and/or interior exogenous wind
Machine is accordingly controlled, to prevent indoor evaporator frosting.
13. devices according to claim 12, it is characterised in that the control module, specifically for:
When the first temperature value T1 is more than the first temperature threshold, control compressor and inside and outside blower fan are current according to air-conditioner
The parameter of setting is run;
It is more than second temperature threshold value in the first temperature value T1, and during less than or equal to the first temperature threshold, controls compressor
Run according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
It is more than the 3rd temperature threshold in the first temperature value T1, and during less than or equal to second temperature threshold value, controls compressor
Run with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed liter
High, outer rotation speed of fan reduction;
When the first temperature value T1 is less than or equal to three temperature thresholds, compressor and inside and outside fan parking are controlled.
14. devices according to claim 13, it is characterised in that the control module is in control compressor with less than current
Frequency run when, specifically for:
Control compressor is every preset time period reduction predeterminated frequency value, until interior the first temperature value T1 for obtaining of subsequent cycle is not
Meet again more than the 3rd temperature threshold, and less than or equal to untill second temperature threshold value this condition.
15. devices according to claim 13, it is characterised in that the control module is raised in control inner blower rotating speed,
During outer rotation speed of fan reduction, specifically for:
Control inner blower rotating speed raises 50-100rad/min, outer rotation speed of fan reduction 50-100rad/min.
16. device according to any one of claim 13~15, it is characterised in that the reminding module, is additionally operable to
When one temperature value T1 is less than or equal to second temperature threshold value, if judgement knows that the first temperature value and the difference of second temperature value T2 are less than
First predetermined threshold value Ta, or, when the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then to user
The prompt message that output evaporator is blocked or indoor set return air inlet is blocked.
17. devices according to claim 12, it is characterised in that the control module, specifically for:
When the second temperature value T2 is more than four temperature thresholds, control compressor and inside and outside blower fan are current according to air-conditioner
The parameter of setting is run;
It is more than the 5th temperature threshold in the second temperature value T2, and during less than or equal to four temperature thresholds, controls compressor
Run according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
It is more than the 6th temperature threshold in the second temperature value T2, and during less than or equal to five temperature thresholds, controls compressor
Run with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed liter
High, outer rotation speed of fan reduction;
When the second temperature value T2 is less than or equal to six temperature thresholds, compressor and inside and outside fan parking are controlled.
18. devices according to claim 17, it is characterised in that the reminding module, are additionally operable in second temperature value T2
During less than or equal to five temperature thresholds, if judging the difference for knowing the first temperature value and second temperature value T2 less than the first default threshold
Value Ta, or, when the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then exporting evaporator to user
The prompt message that blocking or indoor set return air inlet are blocked.
19. devices according to claim 12, it is characterised in that the control module, specifically for:
When the 3rd temperature value T3 is more than seven temperature thresholds, control compressor and inside and outside blower fan are current according to air-conditioner
The parameter of setting is run;
It is more than the 8th temperature threshold in the 3rd temperature value T3, and during less than or equal to seven temperature thresholds, controls compressor
Run according to current frequency, and the inside and outside blower fan of control runs according to current rotating speed;
It is more than the 9th temperature threshold in the 3rd temperature value T3, and during less than or equal to eight temperature thresholds, controls compressor
Run with less than current frequency, or, control compressor runs with less than current frequency, and control inner blower rotating speed liter
High, outer rotation speed of fan reduction;
When the 3rd temperature value T3 is less than or equal to nine temperature thresholds, compressor and inside and outside fan parking are controlled.
20. devices according to claim 19, it is characterised in that the reminding module, are additionally operable in the 3rd temperature value T3
During less than or equal to eight temperature thresholds, if judging the difference for knowing the first temperature value and second temperature value T2 less than the first default threshold
Value Ta, or, when the difference of the first temperature value T1 and the 3rd temperature value T3 is less than the second predetermined threshold value Tb, then exporting evaporator to user
The prompt message that blocking or indoor set return air inlet are blocked.
21. a kind of air-conditioners, it is characterised in that including the air conditioner fault prompting as any one of claim 11~20
Device.
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