CN108613335A - Fault detection method and device of air conditioner, storage medium and processor - Google Patents
Fault detection method and device of air conditioner, storage medium and processor Download PDFInfo
- Publication number
- CN108613335A CN108613335A CN201810200073.3A CN201810200073A CN108613335A CN 108613335 A CN108613335 A CN 108613335A CN 201810200073 A CN201810200073 A CN 201810200073A CN 108613335 A CN108613335 A CN 108613335A
- Authority
- CN
- China
- Prior art keywords
- air
- conditioning
- target
- aperture
- duration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000004378 air conditioning Methods 0.000 claims abstract description 161
- 230000008859 change Effects 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 36
- 238000004904 shortening Methods 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000008569 process Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 230000002596 correlated effect Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a fault detection method and device of an air conditioner, a storage medium and a processor. Wherein, the method comprises the following steps: after an electronic expansion valve of an air conditioner is opened to a target opening degree, controlling the air conditioner to operate for a first time length under the target opening degree; after the air conditioner operates for the first time period, detecting the pressure and the exhaust temperature of the air conditioner to obtain a first pressure value and a first exhaust temperature value; judging whether the change conditions of the first pressure value and the first exhaust temperature value are matched with the target opening degree; and determining that the electronic expansion valve has a fault when the change conditions of the first pressure value and the first exhaust temperature value are not matched with the target opening degree. The invention solves the technical problem that the hysteresis of the air conditioning system causes the poor reliability of the expansion valve.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of fault detection method of air-conditioning, device, storage medium
And processor.
Background technology
Electronic expansion valve for frequency change air conditioner step number is controlled according to correlated conditions such as actual frequency, exhaust, pressure,
The control of its aperture is flexible, but is susceptible to erroneous judgement due to the hysteresis quality of system in actual moving process, is difficult to a certain extent
Immediately determine that expansion valve reliability Work, when actual system response comes, possible expansion valve failure is unable to reliability
It works.
For above-mentioned problem, currently no effective solution has been proposed.
Invention content
An embodiment of the present invention provides a kind of fault detection method of air-conditioning, device, storage medium and processors, at least
The hysteresis quality of solution air-conditioning system leads to the technical problem of the Reliability comparotive difference of expansion valve.
One side according to the ... of the embodiment of the present invention provides a kind of fault detection method of air-conditioning, including：In air-conditioning
Electric expansion valve is opened to after target aperture, is controlled the air-conditioning and is run the first duration under the target aperture；Described
After first duration described in operation of air conditioner, the pressure and delivery temperature of the air-conditioning are detected, first pressure value and first exhaust are obtained
Temperature value；Judge the first pressure value and the first exhaust temperature value situation of change whether with the target aperture phase
Match；In the first pressure value and the situation of change of the first exhaust temperature value and the unmatched situation of target aperture
Under, determine that the electric expansion valve breaks down.
Optionally, it after the electric expansion valve of air-conditioning is opened to target aperture, controls the air-conditioning and is opened in the target
The first duration of operation includes under degree：When the delivery temperature of the air-conditioning is tended towards stability the time needed for state as described first
It is long, wherein the stable state is the state that the delivery temperature maintains target temperature；It is opened in the electric expansion valve of air-conditioning
To after target aperture, controls the air-conditioning and run the first duration under the target aperture.
Optionally, judge the first pressure value and the first exhaust temperature value situation of change whether with the target
Aperture match including：Periodically judge the first pressure value and the first exhaust temperature value according to target time interval
Whether situation of change matches with the target aperture.
Optionally, periodically judging the first pressure value and the first exhaust temperature value according to target time interval
Situation of change whether match with the target aperture before, the method further includes：Obtain the air-conditioning last time booting
Coefficient, obtain history coefficient, wherein the history coefficient be used for indicate the air-conditioning the electric expansion valve aperture with
Relationship between first duration；The target time interval is determined according to the history coefficient and the target aperture,
Wherein, the relationship between the aperture of the electric expansion valve and the target time interval meets the target aperture and described the
The relationship of one duration.
Optionally, after determining the target time interval according to the history coefficient and the target aperture, institute
The method of stating further includes：Detect the first operation duration and with reference to the relationship between duration, wherein first operation duration is described
The accumulated running time of air-conditioning；When first operation duration is more than the reference duration, shorten the target time interval；
When first operation duration is less than or equal to the reference duration, extend the target time interval.
Optionally, after determining the target time interval according to the history coefficient and the target aperture, institute
The method of stating further includes：According to target time interval described in the history coefficient adjustment, wherein described in being indicated in the history coefficient
The aperture of electric expansion valve is bigger, and the delivery temperature is lower and the pressure more hour, extends the target time interval；
The history coefficient indicates that the aperture of the electric expansion valve is bigger, when the delivery temperature is higher or the pressure is bigger,
Shorten the target time interval.
Optionally, after determining the target time interval according to the history coefficient and the target aperture, institute
The method of stating further includes：It first detects first operation duration and with reference to the relationship between duration, determines the target time interval
Range, obtain duration range；The history coefficient is obtained again, according to the history coefficient within the scope of the determining duration
Determine the target time interval, wherein in the case where first operation duration is more than the reference duration, described in determination
Target time interval is in the first range, in the case where first operation duration is less than or equal to the reference duration,
Determine the target time interval in the second range, wherein the minimum value of second range is more than first range
Maximum value.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of failure detector of air-conditioning, including：Control is single
Member controls the air-conditioning and is run under the target aperture after being opened to target aperture in the electric expansion valve of air-conditioning
First duration；Detection unit, the pressure for after the first duration described in the operation of air conditioner, detecting the air-conditioning and exhaust temperature
Degree, obtains first pressure value and first exhaust temperature value；Judging unit, for judging the first pressure value and the first row
Whether the situation of change of temperature value matches with the target aperture；First determination unit, in the first pressure value
With the situation of change of the first exhaust temperature value and the target aperture it is unmatched in the case of, determine the electric expansion valve
It breaks down.
Optionally, described control unit includes：Determining module, for the delivery temperature of the air-conditioning to tend towards stability state
The required time is as first duration, wherein the stable state is the shape that the delivery temperature maintains target temperature
State；Control module controls the air-conditioning and is opened in the target after being opened to target aperture in the electric expansion valve of air-conditioning
Degree is lower to run the first duration.
Optionally, the judging unit includes：Judgment module, for periodically judging described the according to target time interval
Whether one pressure value and the situation of change of the first exhaust temperature value match with the target aperture.
Optionally, described device further includes：Acquiring unit, for periodically judging described the according to target time interval
Before whether one pressure value and the situation of change of the first exhaust temperature value match with the target aperture, the sky is obtained
The coefficient for adjusting last booting, obtains history coefficient, wherein the history coefficient is for indicating that the electronics of the air-conditioning is swollen
Relationship between the aperture of swollen valve and first duration；Second determination unit, for according to the history coefficient and the mesh
Mark aperture determines the target time interval, wherein between the aperture of the electric expansion valve and the target time interval
Relationship meet the relationship of the target aperture and first duration.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of storage medium, including：The storage medium includes
The program of storage, wherein described program executes the fault detection method of above-mentioned air-conditioning.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of processor, and the processor is used to run program,
Wherein, the fault detection method of above-mentioned air-conditioning is executed when described program is run.,
In embodiments of the present invention, this method includes：After the electric expansion valve of air-conditioning is opened to target aperture, control
The air-conditioning runs the first duration under the target aperture；After the first duration described in the operation of air conditioner, the sky is detected
The pressure and delivery temperature of tune, obtain first pressure value and first exhaust temperature value；Judge the first pressure value and described
Whether the situation of change of one outlet air temperature matches with the target aperture；In the first pressure value and the first exhaust
In the case of the situation of change of temperature value and the target aperture are unmatched, determine that the electric expansion valve breaks down, in turn
Solve air-conditioning system hysteresis quality cause expansion valve Reliability comparotive difference technical problem.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the fault detection method of air-conditioning according to the ... of the embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the fault detection method of optional air-conditioning according to the ... of the embodiment of the present invention；
Fig. 3 is the flow chart according to the ... of the embodiment of the present invention for adjusting target time interval；
Fig. 4 is the schematic diagram of the failure detector of air-conditioning according to the ... of the embodiment of the present invention.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
It includes to be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment to cover non-exclusive
Those of clearly list step or unit, but may include not listing clearly or for these processes, method, product
Or the other steps or unit that equipment is intrinsic.
According to embodiments of the present invention, a kind of embodiment of the method for the fault detection method of air-conditioning is provided, needs to illustrate
It is that step shown in the flowchart of the accompanying drawings can execute in the computer system of such as a group of computer-executable instructions,
Also, although logical order is shown in flow charts, and it in some cases, can be to be executed different from sequence herein
Shown or described step.
Fig. 1 is the flow chart of the fault detection method of air-conditioning according to the ... of the embodiment of the present invention, as shown in Figure 1, this method packet
Include following steps：
Step S102, after the electric expansion valve of air-conditioning is opened to target aperture, control air-conditioning is transported under target aperture
The first duration of row.
The aperture of electric expansion valve can be controlled according to the opening step number of electric expansion valve, and the step number of electric expansion valve can
To be controlled according to correlated conditions such as air-conditioning actual motion frequency, exhaust and pressure.By the step number for controlling electric expansion valve
To control the aperture of electric expansion valve.Convertible frequency air-conditioner continuous and steady operation for a period of time after, pass through the program electron of setting
One target aperture of expansion valve.Air-conditioning is controlled after electric expansion valve is opened to target aperture to run under target aperture.At this time
Since system has hysteresis quality, the practical aperture for the pressure and delivery temperature and electric expansion valve that electric expansion valve detects when opening
It is not inconsistent, therefore, if electric expansion valve is opened to the stability for judging electric expansion valve after target aperture immediately, may result in mistake
Sentence.In order to avoid erroneous judgement, judge again after electric expansion valve opens a period of time, to overcome system to lag.
Step S104 detects the pressure and delivery temperature of air-conditioning, obtains first pressure value after the first duration of operation of air conditioner
With first exhaust temperature value.
After the first duration of operation of air conditioner, at this moment the pressure and delivery temperature of air-conditioning have with the opening of electric expansion valve
Variation detects the pressure and delivery temperature of air-conditioning, to judge whether electric expansion valve breaks down at this time.
Step S106, judge first pressure value and first exhaust temperature value situation of change whether with target aperture phase
Match；
Step S108, in first pressure value and the situation of change of first exhaust temperature value and the unmatched situation of target aperture
Under, determine that electric expansion valve breaks down.
Judge whether the first pressure value detected and first exhaust temperature value are consistent with the aperture of electric expansion valve, if
Unanimously, it determines that electric expansion valve does not have failure, works normally；If inconsistent, determine that electric expansion valve breaks down.General electricity
Sub- expansion valve be easy it is stuck, in the inconsistent situation of first pressure value and the aperture of first exhaust temperature value and electric expansion valve
Under, typically electric expansion valve is stuck.Under in the case of electric expansion valve failure, the outer machine of air-conditioning feeds back fault condition
To air-conditioning internal machine, air-conditioning internal machine sends out prompting by application client or remote server, swollen to change electronics in time
Swollen valve.
In the present embodiment, after the aperture for adjusting electric expansion valve, air-conditioning is first allowed to be tieed up in the aperture of Current electronic expansion valve
Hold a period of time judges whether the parameters such as pressure and the delivery temperature of air-conditioning match with the aperture of electric expansion valve again, if air-conditioning
Parameter and electric expansion valve aperture mismatch, it is determined that go out electric expansion valve failure.Due to judging electric expansion valve
The acquired parameter that whether breaks down acquired after electric expansion valve opens a period of time, during this period of time air-conditioning
Parameter change with the unlatching of electric expansion valve, avoid the parameter of the acquisition caused by the hysteresis quality of air-conditioning system
The hysteresis quality that the aperture of electric expansion valve can not be accurately embodied, and then solve air-conditioning system leads to the Reliability comparotive of expansion valve
The technical problem of difference has reached the technique effect for the reliability for improving electric expansion valve.
Optionally, judge the first pressure value and the first exhaust temperature value situation of change whether with the target
Aperture match including：Periodically judge the first pressure value and the first exhaust temperature value according to target time interval
Whether situation of change matches with the target aperture.
In the operational process of air-conditioning, electric expansion valve is all it is possible that therefore failure judges electronics by periodical
Whether failure judges whether electric expansion valve breaks down to expansion valve.As shown in Fig. 2, deterministic process is as follows：
S202, air-conditioning booting operation.
S204, stable operation process.
S206, electronic expansion valve opening variation.
S208 maintains certain time.
Whether the variation of S210, system follow electric expansion valve to change；If it is, determining that electric expansion valve is normal, so
Step S206 is returned to afterwards, and whether the aperture variation and the variation of system for detecting electric expansion valve again follow electric expansion valve
Variation.If it is not, then determining that electric expansion valve is stuck, electric expansion valve is needed replacing.
Optionally, it after the electric expansion valve of air-conditioning is opened to target aperture, controls the air-conditioning and is opened in the target
The first duration of operation includes under degree：When the delivery temperature of the air-conditioning is tended towards stability the time needed for state as described first
It is long, wherein the stable state is the state that the delivery temperature maintains target temperature；It is opened in the electric expansion valve of air-conditioning
To after target aperture, controls the air-conditioning and run the first duration under the target aperture.
Air-conditioning continuous operation for a period of time after, air-conditioning is transported under target aperture within the period of the continuous operation
Row, the delivery temperature of air-conditioning tends towards stability state in the first duration.It is a certain that stable state refers to that delivery temperature maintains essentially in
State under a target temperature.In the state that air-conditioning maintains to stablize, illustrate the lag phase for having spent air-conditioning system, at this
The parameter detected under state can accurately reflect whether electric expansion valve breaks down.
Optionally, periodically judging the first pressure value and the first exhaust temperature value according to target time interval
Situation of change whether match with the target aperture before, it is described to include：The coefficient of the air-conditioning last time booting is obtained,
Obtain history coefficient, wherein the history coefficient is used to indicate the aperture and described the of the electric expansion valve of the air-conditioning
Relationship between one duration；The target time interval is determined according to the history coefficient and the target aperture, wherein institute
It states the relationship between the aperture of electric expansion valve and the target time interval and meets the target aperture and first duration
Relationship.
History coefficient can embody the relationship of the aperture and the first duration of historical electronic expansion valve, with reference to history coefficient and work as
The aperture of preceding electric expansion valve, it may be determined that go out air-conditioning delivery temperature tend towards stability state when required time, obtain first
Duration.
The history coefficient is that the action situation of the electric expansion valve recorded according to air-conditioning and the run time of delivery temperature obtain
The coefficient gone out, air-conditioning record the history coefficient.For example, according to the action situation of the electric expansion valve of air-conditioning record when first powering on
The coefficient obtained with the run time of delivery temperature, when being subsequently switched on again, according to the delivery temperature of air-conditioning tend towards stability when
Between and the action situation of electric expansion valve obtain a coefficient again, be by what the coefficient was multiplied by last air-conditioning booting storage
Number, and be stored in memory chip.Be switched on the coefficient stored in the memory chip for all first reading air-conditioning every time later, and passes through and be
It counts to determine the first duration, and adjustment target time interval.
When adjusting target time interval, it can also be tied by the accumulative operation duration or history coefficient adjustment of air-conditioning
It closes accumulative operation duration and history coefficient is adjusted.
Optionally, after determining the target time interval according to the history coefficient and the target aperture, institute
The method of stating further includes：Detect the first operation duration and with reference to the relationship between duration, wherein first operation duration is described
The accumulated running time of air-conditioning；When first operation duration is more than the reference duration, shorten the target time interval；
When first operation duration is less than or equal to the reference duration, extend the target time interval.
Air-conditioning opens operation for the first time can automatically record and preserve the run time of air-conditioning.The exhaust of air-conditioning is also recorded simultaneously
Temperature tends towards stability the time of state and the action situation of electric expansion valve.The accumulated running time of air-conditioning is exactly air-conditioning institute
The cumulative summation of run time when having unlatching.For example, operation 30 minutes, second of operation 40 minutes are transported for the third time for the first time
Row 60 minutes, the 4th time run 80 minutes, then the first operation duration counted when third time air-conditioning be switched on be 70 minutes, the 4th
The first operation duration counted when secondary air-conditioning booting is 130 minutes.
The accumulative operation duration of air-conditioning is longer, and the probability that air-conditioning breaks down is bigger, judges that the electric expansion valve of air-conditioning is
The time interval of no failure should be shorter.When the first operation duration be more than with reference to duration when, shorten time interval so as to and
The failure of Shi Faxian electric expansion valves；When the first operation duration is less than with reference to duration, extend target time interval, to save energy
The consumption in source.It should be noted that when the present embodiment adjusts target time interval, it can also be according to the first operation duration and target
Relationship between time interval adjusts, for example, according to the curved line relation between the first operation duration and target time interval into
Row adjustment.
Optionally, after determining the target time interval according to the history coefficient and the target aperture, institute
The method of stating further includes：According to target time interval described in the history coefficient adjustment, wherein described in being indicated in the history coefficient
The aperture of electric expansion valve is bigger, and the delivery temperature is lower and the pressure more hour, extends the target time interval；
The history coefficient indicates that the aperture of the electric expansion valve is bigger, when the delivery temperature is higher or the pressure is bigger,
Shorten the target time interval.
History coefficient indicates the relationship between electric expansion valve and delivery temperature and pressure, wherein works as electric expansion valve
Aperture it is bigger, delivery temperature is lower and pressure is smaller, and the aperture of electric expansion valve is bigger, and delivery temperature is higher, and pressure is bigger.
The aperture of electric expansion valve is bigger under normal circumstances, and delivery temperature is lower and pressure is smaller.If detecting the exhaust temperature of air-conditioning
Degree and pressure are normally reduced with the aperture of electric expansion valve, are illustrated that electric expansion valve does not have failure, can be extended target
Time interval；If detecting that the delivery temperature of air-conditioning and pressure are increased with the aperture of electric expansion valve, determine that electronics is swollen
Swollen valve has been likely to occur failure it is necessary to shorten target time interval, to find the failure of electric expansion valve in time.
Optionally, after determining the target time interval according to the history coefficient and the target aperture, institute
The method of stating further includes：It first detects first operation duration and with reference to the relationship between duration, determines the target time interval
Range, obtain duration range；The history coefficient is obtained again, according to the history coefficient within the scope of the determining duration
Determine the target time interval, wherein in the case where first operation duration is more than the reference duration, described in determination
Target time interval is in the first range, in the case where first operation duration is less than or equal to the reference duration,
Determine the target time interval in the second range, wherein the minimum value of second range is more than first range
Maximum value.
When determining target time interval, the first operation duration can utilized in conjunction with history coefficient and the first operation duration
One is determined than broad time range, history coefficient is recycled to determine more accurate target time interval.Using going through
History coefficient and the first operation duration determine that the principle of target time interval is same as described above, repeats no more respectively.
It is illustrated below in conjunction with Fig. 3 methods for adjusting target time interval to the present embodiment.
After installation booting for the first time, air-conditioner operation time accumulation, valve events step number and delivery temperature tend towards stability time relationship
Coefficient calculates, and then shut down moment memory air-conditioner operation time and valve and delivery temperature coefficient of relationship, when being switched on again, first reads
Air-conditioner operation time and valve and delivery temperature coefficient of relationship, while adaptive adjustment valve reliability judges the time.Wherein, valve can be with
It is electric expansion valve, reliability judges the time for target time interval.
The embodiment of the present invention additionally provides a kind of failure detector of air-conditioning.Fig. 4 is sky according to the ... of the embodiment of the present invention
The schematic diagram of the failure detector of tune.As shown in figure 4, the failure detector of the air-conditioning includes：
Control unit 42 is used for after the electric expansion valve of air-conditioning is opened to target aperture, and control air-conditioning is in target aperture
The first duration of lower operation.
The aperture of electric expansion valve can be controlled according to the opening step number of electric expansion valve, and the step number of electric expansion valve can
To be controlled according to correlated conditions such as air-conditioning actual motion frequency, exhaust and pressure.By the step number for controlling electric expansion valve
To control the aperture of electric expansion valve.Convertible frequency air-conditioner continuous and steady operation for a period of time after, pass through the program electron of setting
One target aperture of expansion valve.Air-conditioning is controlled after electric expansion valve is opened to target aperture to run under target aperture.At this time
Since system has hysteresis quality, the practical aperture for the pressure and delivery temperature and electric expansion valve that electric expansion valve detects when opening
It is not inconsistent, therefore, if electric expansion valve is opened to the stability for judging electric expansion valve after target aperture immediately, may result in mistake
Sentence.In order to avoid erroneous judgement, judge again after electric expansion valve opens a period of time, to overcome system to lag.
Detection unit 44 is used for after the first duration of operation of air conditioner, is detected the pressure and delivery temperature of air-conditioning, is obtained first
Pressure value and first exhaust temperature value；
After the first duration of operation of air conditioner, at this moment the pressure and delivery temperature of air-conditioning have with the opening of electric expansion valve
Variation detects the pressure and delivery temperature of air-conditioning, to judge whether electric expansion valve breaks down at this time.
Judging unit 46 be used to judge first pressure value and first exhaust temperature value situation of change whether with target aperture
Match；
First determination unit 48 is used in first pressure value and the situation of change of first exhaust temperature value with target aperture not
In the case of matched, determine that electric expansion valve breaks down.
Judge whether the first pressure value detected and first exhaust temperature value are consistent with the aperture of electric expansion valve, if
Unanimously, it determines that electric expansion valve does not have failure, works normally；If inconsistent, determine that electric expansion valve breaks down.General electricity
Sub- expansion valve be easy it is stuck, in the inconsistent situation of first pressure value and the aperture of first exhaust temperature value and electric expansion valve
Under, typically electric expansion valve is stuck.Under in the case of electric expansion valve failure, the outer machine of air-conditioning feeds back fault condition
To air-conditioning internal machine, air-conditioning internal machine sends out prompting by application client or remote server, swollen to change electronics in time
Swollen valve.
In the present embodiment, after the aperture for adjusting electric expansion valve, air-conditioning is first allowed to be tieed up in the aperture of Current electronic expansion valve
Hold a period of time judges whether the parameters such as pressure and the delivery temperature of air-conditioning match with the aperture of electric expansion valve again, if air-conditioning
Parameter and electric expansion valve aperture mismatch, it is determined that go out electric expansion valve failure.Due to judging electric expansion valve
The acquired parameter that whether breaks down acquired after electric expansion valve opens a period of time, during this period of time air-conditioning
Parameter change with the unlatching of electric expansion valve, avoid the parameter of the acquisition caused by the hysteresis quality of air-conditioning system
The hysteresis quality that the aperture of electric expansion valve can not be accurately embodied, and then solve air-conditioning system leads to the Reliability comparotive of expansion valve
The technical problem of difference has reached the technique effect for the reliability for improving electric expansion valve.
Optionally, judging unit includes：Judgment module, for periodically judging first pressure value according to target time interval
Whether match with target aperture with the situation of change of first exhaust temperature value.
In the operational process of air-conditioning, electric expansion valve is all it is possible that therefore failure judges electronics by periodical
Whether failure judges whether electric expansion valve breaks down to expansion valve.As shown in Fig. 2, deterministic process is as follows：
S202, air-conditioning booting operation.
S204, stable operation process.
S206, electronic expansion valve opening variation.
S208 maintains certain time.
Whether the variation of S210, system follow electric expansion valve to change；If it is, determining that electric expansion valve is normal, so
Step S206 is returned to afterwards, and whether the aperture variation and the variation of system for detecting electric expansion valve again follow electric expansion valve
Variation.If it is not, then determining that electric expansion valve is stuck, electric expansion valve is needed replacing.
Optionally, control unit includes：Determining module, for by the delivery temperature of air-conditioning tend towards stability needed for state when
Between be used as the first duration, wherein stable state is that delivery temperature maintains the state of target temperature；Control module, in sky
The electric expansion valve of tune is opened to after target aperture, and control air-conditioning runs the first duration under target aperture.
Air-conditioning continuous operation for a period of time after, air-conditioning is transported under target aperture within the period of the continuous operation
Row, the delivery temperature of air-conditioning tends towards stability state in the first duration.It is a certain that stable state refers to that delivery temperature maintains essentially in
State under a target temperature.In the state that air-conditioning maintains to stablize, illustrate the lag phase for having spent air-conditioning system, at this
The parameter detected under state can accurately reflect whether electric expansion valve breaks down.
Optionally, device further includes：Acquiring unit, for periodically judging first pressure value according to target time interval
Before whether matching with target aperture with the situation of change of first exhaust temperature value, the coefficient of air-conditioning last time booting is obtained,
Obtain history coefficient, wherein history coefficient is used to indicate the relationship between the aperture and the first duration of the electric expansion valve of air-conditioning；
Second determination unit, for determining target time interval according to history coefficient and target aperture, wherein electric expansion valve is opened
Relationship between degree and target time interval meets the relationship of target aperture and the first duration.
History coefficient can embody the relationship of the aperture and the first duration of historical electronic expansion valve, with reference to history coefficient and work as
The aperture of preceding electric expansion valve, it may be determined that go out air-conditioning delivery temperature tend towards stability state when required time, obtain first
Duration.
The history coefficient is that the action situation of the electric expansion valve recorded according to air-conditioning and the run time of delivery temperature obtain
The coefficient gone out, air-conditioning record the history coefficient.For example, according to the action situation of the electric expansion valve of air-conditioning record when first powering on
The coefficient obtained with the run time of delivery temperature, when being subsequently switched on again, according to the delivery temperature of air-conditioning tend towards stability when
Between and the action situation of electric expansion valve obtain a coefficient again, be by what the coefficient was multiplied by last air-conditioning booting storage
Number, and be stored in memory chip.Be switched on the coefficient stored in the memory chip for all first reading air-conditioning every time later, and passes through and be
It counts to determine the first duration, and adjustment target time interval.
When adjusting target time interval, it can also be tied by the accumulative operation duration or history coefficient adjustment of air-conditioning
It closes accumulative operation duration and history coefficient is adjusted.
Air-conditioning opens operation for the first time can automatically record and preserve the run time of air-conditioning.The exhaust of air-conditioning is also recorded simultaneously
Temperature tends towards stability the time of state and the action situation of electric expansion valve.The accumulated running time of air-conditioning is exactly air-conditioning institute
The cumulative summation of run time when having unlatching.For example, operation 30 minutes, second of operation 40 minutes are transported for the third time for the first time
Row 60 minutes, the 4th time run 80 minutes, then the first operation duration counted when third time air-conditioning be switched on be 70 minutes, the 4th
The first operation duration counted when secondary air-conditioning booting is 130 minutes.
The accumulative operation duration of air-conditioning is longer, and the probability that air-conditioning breaks down is bigger, judges that the electric expansion valve of air-conditioning is
The time interval of no failure should be shorter.When the first operation duration be more than with reference to duration when, shorten time interval so as to and
The failure of Shi Faxian electric expansion valves；When the first operation duration is less than with reference to duration, extend target time interval, to save energy
The consumption in source.It should be noted that when the present embodiment adjusts target time interval, it can also be according to the first operation duration and target
Relationship between time interval adjusts, for example, according to the curved line relation between the first operation duration and target time interval into
Row adjustment.
History coefficient indicates the relationship between electric expansion valve and delivery temperature and pressure, wherein works as electric expansion valve
Aperture it is bigger, delivery temperature is lower and pressure is smaller, and the aperture of electric expansion valve is bigger, and delivery temperature is higher, and pressure is bigger.
The aperture of electric expansion valve is bigger under normal circumstances, and delivery temperature is lower and pressure is smaller.If detecting the exhaust temperature of air-conditioning
Degree and pressure are normally reduced with the aperture of electric expansion valve, are illustrated that electric expansion valve does not have failure, can be extended target
Time interval；If detecting that the delivery temperature of air-conditioning and pressure are increased with the aperture of electric expansion valve, determine that electronics is swollen
Swollen valve has been likely to occur failure it is necessary to shorten target time interval, to find the failure of electric expansion valve in time.
When determining target time interval, the first operation duration can utilized in conjunction with history coefficient and the first operation duration
One is determined than broad time range, history coefficient is recycled to determine more accurate target time interval.
The embodiment of the present invention additionally provides a kind of storage medium, and storage medium includes the program of storage, wherein program executes
The fault detection method of above-mentioned air-conditioning.
The embodiment of the present invention additionally provides a kind of processor, and processor is for running program, wherein program executes when running
The fault detection method of above-mentioned air-conditioning.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, for example, the unit division, Ke Yiwei
A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
It connects, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
On unit.Some or all of unit therein can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (13)
1. a kind of fault detection method of air-conditioning, which is characterized in that including：
After the electric expansion valve of air-conditioning is opened to target aperture, controls the air-conditioning and run first under the target aperture
Duration；
After the first duration described in the operation of air conditioner, the pressure and delivery temperature of the air-conditioning are detected, first pressure value is obtained
With first exhaust temperature value；
Judge whether the situation of change of the first pressure value and the first exhaust temperature value matches with the target aperture；
In the first pressure value and the situation of change of the first exhaust temperature value and the unmatched situation of target aperture
Under, determine that the electric expansion valve breaks down.
2. according to the method described in claim 1, it is characterized in that, air-conditioning electric expansion valve be opened to target aperture it
Afterwards, it controls the air-conditioning and runs the first duration under the target aperture and include：
The delivery temperature of the air-conditioning is tended towards stability into the time needed for state as first duration, wherein the stabilization
State is the state that the delivery temperature maintains target temperature；
After the electric expansion valve of air-conditioning is opened to target aperture, controls the air-conditioning and run first under the target aperture
Duration.
3. method according to claim 1 or 2, which is characterized in that judge the first pressure value and the first exhaust
The situation of change of temperature value whether with the target aperture match including：
Periodically judge that the situation of change of the first pressure value and the first exhaust temperature value is according to target time interval
It is no to match with the target aperture.
4. according to the method described in claim 2, it is characterized in that, periodically judging described first according to target time interval
Before whether pressure value and the situation of change of the first exhaust temperature value match with the target aperture, the method is also wrapped
It includes：
The coefficient for obtaining the air-conditioning last time booting, obtains history coefficient, wherein the history coefficient is for indicating the sky
Relationship between the aperture and first duration of the electric expansion valve adjusted；
The target time interval is determined according to the history coefficient and the target aperture, wherein the electric expansion valve
Aperture and the target time interval between relationship meet the relationship of the target aperture and first duration.
5. according to the method described in claim 4, it is characterized in that, according to the history coefficient and target aperture determination
Go out after the target time interval, the method further includes：
Detect the first operation duration and with reference to the relationship between duration, wherein first operation duration is the tired of the air-conditioning
Count run time；
When first operation duration is more than the reference duration, shorten the target time interval；
When first operation duration is less than or equal to the reference duration, extend the target time interval.
6. according to the method described in claim 4, it is characterized in that, according to the history coefficient and target aperture determination
Go out after the target time interval, the method further includes：
According to target time interval described in the history coefficient adjustment, wherein indicate the electronic expansion in the history coefficient
The aperture of valve is bigger, and the delivery temperature is lower and the pressure more hour, extends the target time interval；In the history
Coefficient indicates that the aperture of the electric expansion valve is bigger, when the delivery temperature is higher or the pressure is bigger, described in shortening
Target time interval.
7. according to the method described in claim 4, it is characterized in that, according to the history coefficient and target aperture determination
Go out after the target time interval, the method further includes：
It first detects the first operation duration and with reference to the relationship between duration, the range of the target time interval is determined, when obtaining
Long range, wherein first operation duration is the accumulated running time of the air-conditioning；
The history coefficient is obtained again, and the object time is determined within the scope of the determining duration according to the history coefficient
Interval,
Wherein, first operation duration be more than it is described with reference to duration in the case of, determine the target time interval the
In one range, in the case where first operation duration is less than or equal to the reference duration, the object time is determined
It is spaced in the second range, wherein the minimum value of second range is more than the maximum value of first range.
8. a kind of failure detector of air-conditioning, which is characterized in that including：
Control unit controls the air-conditioning in the target after being opened to target aperture in the electric expansion valve of air-conditioning
The first duration is run under aperture；
Detection unit, for after the first duration described in the operation of air conditioner, detecting the pressure and delivery temperature of the air-conditioning, obtaining
To first pressure value and first exhaust temperature value；
Judging unit, for judge the first pressure value and the first exhaust temperature value situation of change whether with the mesh
Mark aperture matches；
First determination unit, in the first pressure value and the situation of change of the first exhaust temperature value and the target
In the case of aperture is unmatched, determine that the electric expansion valve breaks down.
9. device according to claim 8, which is characterized in that described control unit includes：
Determining module, for the delivery temperature of the air-conditioning to be tended towards stability the time needed for state as first duration,
Wherein, the stable state is the state that the delivery temperature maintains target temperature；
Control module controls the air-conditioning in the target after being opened to target aperture in the electric expansion valve of air-conditioning
The first duration is run under aperture.
10. device according to claim 8 or claim 9, which is characterized in that the judging unit includes：
Judgment module, for periodically judging the first pressure value and the first exhaust temperature value according to target time interval
Situation of change whether match with the target aperture.
11. device according to claim 9, which is characterized in that described device further includes：
Acquiring unit, for periodically judging the first pressure value and the first exhaust temperature according to target time interval
Before whether the situation of change of value matches with the target aperture, the coefficient of the air-conditioning last time booting is obtained, is gone through
History coefficient, wherein the history coefficient is used to indicate the aperture of the electric expansion valve of the air-conditioning and first duration
Between relationship；
Second determination unit, for determining the target time interval according to the history coefficient and the target aperture,
In, the relationship between the aperture of the electric expansion valve and the target time interval meets the target aperture and described first
The relationship of duration.
12. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein described program right of execution
Profit requires the fault detection method of the air-conditioning described in any one of 1 to 7.
13. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Profit requires the fault detection method of the air-conditioning described in any one of 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200073.3A CN108613335B (en) | 2018-03-12 | 2018-03-12 | Fault detection method and device of air conditioner, storage medium and processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200073.3A CN108613335B (en) | 2018-03-12 | 2018-03-12 | Fault detection method and device of air conditioner, storage medium and processor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108613335A true CN108613335A (en) | 2018-10-02 |
| CN108613335B CN108613335B (en) | 2019-12-27 |
Family
ID=63658708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810200073.3A Active CN108613335B (en) | 2018-03-12 | 2018-03-12 | Fault detection method and device of air conditioner, storage medium and processor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108613335B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708248A (en) * | 2018-12-29 | 2019-05-03 | 广东美的暖通设备有限公司 | The valve body abatement detecting method and air-conditioning system of air-conditioning system |
| CN110296499A (en) * | 2019-07-09 | 2019-10-01 | 宁波奥克斯电气股份有限公司 | A kind of electric expansion valve abnormal cause judgment method, device and air conditioner |
| CN111397176A (en) * | 2020-03-17 | 2020-07-10 | 珠海格力电器股份有限公司 | High-temperature refrigeration control method and device and air conditioning equipment |
| CN111765593A (en) * | 2020-07-07 | 2020-10-13 | 珠海格力电器股份有限公司 | Air conditioner throttling component fault early warning method and air conditioner |
| CN111999083A (en) * | 2020-08-06 | 2020-11-27 | 珠海格力电器股份有限公司 | Standard machine monitoring method and device and storage medium |
| CN113154726A (en) * | 2020-01-21 | 2021-07-23 | 青岛海尔空调电子有限公司 | Detection method of electronic expansion valve of air conditioner indoor unit and renovation method of indoor unit |
| CN114593499A (en) * | 2022-03-11 | 2022-06-07 | 广东美的暖通设备有限公司 | Nozzle filth blockage identification method and device |
| CN114754413A (en) * | 2022-04-11 | 2022-07-15 | 青岛海信日立空调系统有限公司 | Multi-split air conditioning system and fault positioning method |
| CN115523593A (en) * | 2022-08-19 | 2022-12-27 | 宁波奥克斯电气股份有限公司 | Control method and device of electronic expansion valve and air conditioner |
| WO2023241071A1 (en) * | 2022-06-13 | 2023-12-21 | 青岛海尔空调器有限总公司 | Method and apparatus for performing detection on electronic expansion valve, and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10238912A (en) * | 1997-02-27 | 1998-09-11 | Mitsubishi Electric Corp | Air conditioner and multizone air conditioner |
| CN104122463A (en) * | 2014-07-16 | 2014-10-29 | 珠海格力电器股份有限公司 | Electronic expansion valve detection method and system |
| CN104482638A (en) * | 2014-12-09 | 2015-04-01 | 广东美的制冷设备有限公司 | Air conditioner and fault detection method for electronic expansion valve of air conditioner |
| CN107152751A (en) * | 2017-04-21 | 2017-09-12 | 广东美的暖通设备有限公司 | Electric expansion valve fault detection method, air-conditioning and computer-readable recording medium |
| CN107560101A (en) * | 2017-08-11 | 2018-01-09 | 宁波奥克斯电气股份有限公司 | A kind of fault detection method of air conditioner electronic expansion valve |
-
2018
- 2018-03-12 CN CN201810200073.3A patent/CN108613335B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10238912A (en) * | 1997-02-27 | 1998-09-11 | Mitsubishi Electric Corp | Air conditioner and multizone air conditioner |
| CN104122463A (en) * | 2014-07-16 | 2014-10-29 | 珠海格力电器股份有限公司 | Electronic expansion valve detection method and system |
| CN104482638A (en) * | 2014-12-09 | 2015-04-01 | 广东美的制冷设备有限公司 | Air conditioner and fault detection method for electronic expansion valve of air conditioner |
| CN107152751A (en) * | 2017-04-21 | 2017-09-12 | 广东美的暖通设备有限公司 | Electric expansion valve fault detection method, air-conditioning and computer-readable recording medium |
| CN107560101A (en) * | 2017-08-11 | 2018-01-09 | 宁波奥克斯电气股份有限公司 | A kind of fault detection method of air conditioner electronic expansion valve |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708248A (en) * | 2018-12-29 | 2019-05-03 | 广东美的暖通设备有限公司 | The valve body abatement detecting method and air-conditioning system of air-conditioning system |
| CN110296499A (en) * | 2019-07-09 | 2019-10-01 | 宁波奥克斯电气股份有限公司 | A kind of electric expansion valve abnormal cause judgment method, device and air conditioner |
| CN113154726A (en) * | 2020-01-21 | 2021-07-23 | 青岛海尔空调电子有限公司 | Detection method of electronic expansion valve of air conditioner indoor unit and renovation method of indoor unit |
| WO2021147535A1 (en) * | 2020-01-21 | 2021-07-29 | 青岛海尔空调电子有限公司 | Detection method for electronic expansion valve of indoor unit of air conditioner, and refurbishing method for indoor unit |
| CN111397176A (en) * | 2020-03-17 | 2020-07-10 | 珠海格力电器股份有限公司 | High-temperature refrigeration control method and device and air conditioning equipment |
| CN111765593A (en) * | 2020-07-07 | 2020-10-13 | 珠海格力电器股份有限公司 | Air conditioner throttling component fault early warning method and air conditioner |
| CN111999083A (en) * | 2020-08-06 | 2020-11-27 | 珠海格力电器股份有限公司 | Standard machine monitoring method and device and storage medium |
| CN114593499A (en) * | 2022-03-11 | 2022-06-07 | 广东美的暖通设备有限公司 | Nozzle filth blockage identification method and device |
| CN114593499B (en) * | 2022-03-11 | 2023-09-19 | 广东美的暖通设备有限公司 | Nozzle dirty blocking identification method and device |
| CN114754413A (en) * | 2022-04-11 | 2022-07-15 | 青岛海信日立空调系统有限公司 | Multi-split air conditioning system and fault positioning method |
| CN114754413B (en) * | 2022-04-11 | 2023-10-27 | 青岛海信日立空调系统有限公司 | Multi-split air conditioning system and fault positioning method |
| WO2023241071A1 (en) * | 2022-06-13 | 2023-12-21 | 青岛海尔空调器有限总公司 | Method and apparatus for performing detection on electronic expansion valve, and storage medium |
| CN115523593A (en) * | 2022-08-19 | 2022-12-27 | 宁波奥克斯电气股份有限公司 | Control method and device of electronic expansion valve and air conditioner |
| CN115523593B (en) * | 2022-08-19 | 2023-06-20 | 宁波奥克斯电气股份有限公司 | Control method and device for electronic expansion valve and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108613335B (en) | 2019-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108613335A (en) | Fault detection method and device of air conditioner, storage medium and processor | |
| CN105465962B (en) | System, method and device for controlling exhaust temperature of compressor | |
| JP4813732B2 (en) | Method and apparatus for calculating remaining drive period of product | |
| CN105115105B (en) | Power failure detection method, detection of power loss system and air conditioner | |
| US20050015665A1 (en) | Fault recovery system and method for adaptively updating order of command executions acoording to past results | |
| CN107576105B (en) | Defrosting control method and device, storage medium and air conditioner | |
| CN106642771A (en) | Oil return control method and device for refrigeration house multi-connected unit and refrigeration house multi-connected unit | |
| CN108804207A (en) | A kind of process management-control method based on android system | |
| US8145955B2 (en) | Monitoring apparatus, information processing system, monitoring method and computer readable medium | |
| CN113341813B (en) | Urban gas medium-low pressure pipe network detection method and system | |
| CN109631267A (en) | Fan control method and system and air conditioning system | |
| CN110425696A (en) | Air conditioner control method and device, storage medium and air conditioner | |
| CN105658937A (en) | Method for monitoring operation of sensor | |
| CN108562010B (en) | Networking method and device of air conditioning unit | |
| CN106642541B (en) | Control method and device for electric heating belt of air conditioner chassis | |
| CN111720975A (en) | Control method, system and device of air conditioner | |
| CN110107986B (en) | Defrosting control method, device and system of temperature adjusting equipment and air conditioner | |
| CN110779154A (en) | Control method and device of air conditioner | |
| CN108644971B (en) | Control method and device for defrosting of air conditioner, storage medium and processor | |
| CN114608128A (en) | Method and device for controlling temperature of air conditioner chip, air conditioner and storage medium | |
| CN110398022A (en) | Air-conditioning overload protection judgment method, device and air conditioner | |
| CN109974220A (en) | Control method, device and system of electrical equipment and electrical equipment | |
| CN112449362B (en) | Intelligent sensor self-adaptive configuration method, device and system based on letter model | |
| CN109442698A (en) | Air conditioner control method and device, storage medium and air conditioner | |
| CN106196876B (en) | Control method and control device for humidity in cabinet and cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |