CN106288230A - The defrosting control method of window air conditioner and device - Google Patents
The defrosting control method of window air conditioner and device Download PDFInfo
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- CN106288230A CN106288230A CN201610842018.5A CN201610842018A CN106288230A CN 106288230 A CN106288230 A CN 106288230A CN 201610842018 A CN201610842018 A CN 201610842018A CN 106288230 A CN106288230 A CN 106288230A
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- 238000010257 thawing Methods 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000002159 abnormal effect Effects 0.000 claims abstract description 23
- 238000004378 air conditioning Methods 0.000 claims description 45
- 230000009467 reduction Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- 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
- F24F11/41—Defrosting; Preventing freezing
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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
- F24F11/62—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses the defrosting control method of a kind of window air conditioner, including: control enter or exit defrost according to leaving air temp and the defrosting temperature preset；Record enters the second time point that first time point corresponding to defrost is corresponding with exiting defrost；Calculate defrost time and time interval；When time interval is less than the first preset duration, if when the defrost time of secondary defrost is more than the second preset duration, increase the intake of indoor set, if when the defrost time of secondary defrost is less than or equal to the second preset duration, secondary defrost time lengthening extremely described second preset duration will be worked as, and increase the intake of indoor set；Statistics time interval is less than the number of times of the first preset duration, when statistics number is more than preset times, determines that current system exists abnormal, and controls window air conditioner warning shutdown.The invention also discloses the defrosting control device of a kind of window air conditioner.Present invention achieves system exception in operation of air conditioner to judge, improve the reliability of operation of air conditioner.
Description
Technical field
The present invention relates to belong to air-conditioning technical field, particularly relate to defrosting control method and the dress of a kind of window air conditioner
Put.
Background technology
In the window air conditioner of domestic air conditioner, when the surface temperature of heat exchanger is relatively low may frosting, thick frost layer
Air constricted flow can be caused, affect the operational effect of air-conditioner, so needing defrost.By detection heat exchanger leaving air temp with set
Definite value compares, and controls air-conditioning according to comparative result and enters defrost or exit defrost.If detection temperature is less than arranging temperature, then
Carry out defrost；If detecting leaving air temp to be over time, become higher than design temperature, then defrost terminates.This kind of control model
In the case of air port is plugged or has extremely, defrost action being repeated, affects the properly functioning of air-conditioning, reliability is relatively
Low.
Summary of the invention
Present invention is primarily targeted at defrosting control method and the device that a kind of window air conditioner is provided, it is intended to achieve
During defrost, system exception judges, improves the reliability of operation of air conditioner.
For achieving the above object, the defrosting control method of a kind of window air conditioner that the present invention provides comprises the following steps:
Control air-conditioning according to leaving air temp and the defrosting temperature preset enter defrost or exit defrost；
Record enters the second time point that first time point corresponding to defrost is corresponding with exiting defrost；
The defrost time of each defrost is calculated and when time defrost is with upper according to described first time point and the second time point
Time interval between defrost；
When described time interval is less than the first preset duration, and when the defrost time of time defrost is more than the second preset duration
Time, control to increase the intake of indoor set；When described time interval is less than the first preset duration, and when the defrost of time defrost
When time is less than or equal to the second preset duration, secondary defrost time lengthening extremely described second preset duration will be worked as, and increase room
The intake of interior machine；
Add up the described time interval number of times less than the first preset duration, when described number of times is more than preset times, determine
Current system exists abnormal, and controls window air conditioner warning shutdown.
Preferably, the intake of described increase indoor set includes the rotating speed controlling to increase indoor fan and/or controls to increase
The aperture of wind deflector.
Preferably, the defrosting control method of described window air conditioner also includes:
When described time interval is more than or equal to the first preset duration, and when the defrost time of time defrost presets less than second
During duration, control to reduce the intake of indoor set.
Preferably, the intake of described increase indoor set includes the rotating speed controlling to reduce indoor fan and/or controls to reduce
The aperture of wind deflector.
Preferably, described defrosting temperature includes that defrosting enters temperature and temperature is exited in defrosting；It is little that described defrosting enters temperature
Temperature is exited in defrosting；
Described control air-conditioning according to leaving air temp and the defrosting temperature preset and enter defrost or exit defrost and include:
When described leaving air temp enters temperature less than described defrosting, control to enter defrost；
When described leaving air temp exits temperature more than described defrosting, control to exit defrost.
Additionally, for achieving the above object, the present invention also provides for the defrosting control device of a kind of window air conditioner, described window
The defrosting control device of air-conditioner includes:
First control module, enters defrost for controlling air-conditioning according to leaving air temp and the defrosting temperature preset or exits
Defrost；
Logging modle, enters, for recording, the second time point that first time point corresponding to defrost is corresponding with exiting defrost；
Acquisition module, for calculate according to described first time point and the second time point each defrost the defrost time and
Time interval between secondary defrost and last defrost；
Second control module, for being less than the first preset duration when described time interval, and when the defrost time of time defrost
During more than the second preset duration, control to increase the intake of indoor set；When described time interval is less than the first preset duration,
And when the defrost time of secondary defrost less than or equal to the second preset duration time, by when time defrost time lengthening to the most described second pre-
If duration, and increase the intake of indoor set；
3rd control module, for adding up the described time interval number of times less than the first preset duration, when described number of times is big
When preset times, determine that current system exists abnormal, and control window air conditioner warning shutdown.
Preferably, the intake of described increase indoor set includes the rotating speed controlling to increase indoor fan and/or controls to increase
The aperture of wind deflector.
Preferably, the defrosting control device of described window air conditioner also includes:
4th control module, for being more than or equal to the first preset duration when described time interval, and when the change of time defrost
When the frost time is less than the second preset duration, control to reduce the intake of indoor set.
Preferably, the intake of described reduction indoor set includes the rotating speed controlling to reduce indoor fan and/or controls to reduce
The aperture of wind deflector.
Preferably, described defrosting temperature includes that defrosting enters temperature and temperature is exited in defrosting；It is little that described defrosting enters temperature
Temperature is exited in defrosting；
Described first control module specifically for, when described leaving air temp less than described defrosting enter temperature time, control into
Enter defrost；When described leaving air temp exits temperature more than described defrosting, control to exit defrost.
When the embodiment of the present invention adjusts intake and the defrost of air-conditioning according to air-conditioning defrost time and defrost time interval
Between, to improve the ruuning situation of air-conditioning.When, after the ruuning situation improving air-conditioning, the most persistently making the time interval of defrost relatively
Short, so that it is determined that air-conditioning exists abnormal phenomena, and when confirming abnormal, control air-conditioning and shut down, improve the reliable of operation of air conditioner
Property.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the defrosting control method first embodiment of window air conditioner of the present invention；
Fig. 2 be window air conditioner of the present invention defrosting control method one embodiment in defrost put labelling example cycle time
Figure；
Fig. 3 is the schematic flow sheet of defrosting control method second embodiment of window air conditioner of the present invention；
Fig. 4 is the high-level schematic functional block diagram of the defrosting control device first embodiment of window air conditioner of the present invention；
Fig. 5 is the high-level schematic functional block diagram of defrosting control device second embodiment of window air conditioner of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
In order to be able to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the accompanying drawings and be embodied as
The present invention is further described in detail by mode.
The present invention provides the defrosting control method of a kind of window air conditioner, with reference to Fig. 1, in the control of window air conditioner of the present invention
In method first embodiment processed, the control method of this window air conditioner includes:
Step S10, controls air-conditioning according to leaving air temp and the defrosting temperature preset and enters defrost or exit defrost；
In the present embodiment, above-mentioned leaving air temp is the leaving air temp of indoor apparatus of air conditioner, common, at air-conditioning indoor heat exchanger
It is provided with temperature-sensitive bag, is used for detecting temperature.In the present embodiment, air-conditioning indoor heat exchanger can be arranged near air-out by acquisition
The temperature value of the temperature-sensitive bag detection of mouth side processes as the leaving air temp of the application.In following embodiment, with air-out
Temperature is that T0 is described in detail.Specifically, leaving air temp T0 is obtained in real time, according to size and the defrosting of current leaving air temp T0
The magnitude relationship of temperature thus control air-conditioning and enter defrost or exit defrost.
Step S20, record enters the second time point that first time point corresponding to defrost is corresponding with exiting defrost；
In the present embodiment, can be by the time of default timer record air-conditioner operation or by current clock
The operation time of record air-conditioning.That is, when operation of air conditioner, when starting timer；Or when air-conditioner runs, record is current
Time point, obtain, according to the time of current time and the difference of time point, the time that air-conditioning currently runs.At operation of air conditioner
During, air-conditioning there may be repeatedly defrost action, specifically, in the present embodiment, can record enter each time defrost and
Exit the time point of defrost.It should be noted that, in the present embodiment, the time point exiting the defrost time exits defrost bar for meeting
Time point corresponding during part.As in figure 2 it is shown, repeatedly enter defrost for air-conditioning and exit the time shaft of time point of defrost.?
In Fig. 2,Represent that the 1st defrost cycle enters the first time point of defrost and exit the second time of defrost respectively
Point；Represent that (n-1)th defrost cycle enters the first time point of defrost and exit the second time of defrost respectively
Point；Represent that the n-th defrost cycle entered the first time point of defrost and exited the second time point of defrost respectively.
Step S30, calculates the defrost time of each defrost and when secondary according to described first time point and the second time point
Time interval between defrost and last defrost；
When each defrost end cycle, i.e. when meet exit defrost condition time, it will according to this defrost correspondence remember
The first time point of recordWith the second time pointAnd the second time point of last time defrost corresponding recordIt is calculated
When the time of secondary defrost, and the time interval between time defrost and last defrost.Wherein, when the time of secondary defrost it isTime interval between secondary defrost and last defrost is
Step S40, when described time interval is less than the first preset duration, and when the defrost time of time defrost is pre-more than second
If during duration, control to increase the intake of indoor set；When described time interval is less than the first preset duration, and when the change of time defrost
When the frost time is less than or equal to the second preset duration, secondary defrost time lengthening extremely described second preset duration will be worked as, and increase
The intake of indoor set；
It should be noted that, the size of above-mentioned first preset duration and the second preset duration all can be entered according to actual needs
Row is arranged.In the present embodiment, above-mentioned first preset duration for representing that defrost allows minimum time interval, when time interval relatively
In short-term (time i.e. less than the first preset duration), then show to there may be wind locking phenomenon, need to improve defrost time interval, to enter one
Step ground is confirmed whether to there is abnormal phenomena.Above-mentioned second preset duration is for representing the defrost time that a defrost is minimum, working as
When the frost time is shorter (during less than the second preset duration), then shows that defrost is complete not, need to increase the time of defrost, to carry
The degree of high defrost.
When time interval is less than the first preset duration, and when the time of time defrost is more than the second preset duration, represent defrost
The shorter needs of time interval is improved, and the defrost time meets condition can be without modification.When the defrost time, time interval was shorter, to change
The improvement of frost time interval is then to extend it, and extending defrost time interval can be real by increasing the intake of indoor set
Existing.During refrigeration, when the intake of increase indoor set, the heat transfer effect of heat exchanger can be increased so that indoor heat exchange
The temperature of device suitably rises, and extends into the time of defrost next time, thus extends defrost time interval, improves defrost time interval
Shorter situation.
When time interval is less than the first preset duration, and when the time of time defrost is less than the second preset duration, represent defrost
Time interval and defrost time are the shortest, and both of which needs to improve.When defrost time interval and defrost time are the shortest, to change
Frost time interval and the improvement of defrost time are then to extend respectively both this.First by defrost time lengthening to the most described the
Two preset duration so that the defrost time meets demand, it is ensured that defrost is fully, thoroughly；Then extend defrost time interval then to pass through
The intake increasing indoor set realizes.
The intake of described increase indoor set includes the rotating speed controlling to increase indoor fan and/or controls to increase wind deflector
Aperture, the intake i.e. increasing indoor set can be by increasing the rotating speed of indoor fan, increasing the aperture of wind deflector, increase room simultaneously
The various ways such as the rotating speed of inner blower and the aperture of wind deflector realize.Concrete, when the rotating speed and/or the control that increase indoor fan
Increase wind deflector aperture after, if time interval is still less than the first preset duration, continue increase indoor fan rotating speed and/or
Control to increase the aperture of wind deflector, until making time interval be more than the first preset duration.
The open range of the rotating speed of the indoor fan of window air conditioner and/or wind deflector below can be respectively divided into 5 etc.
Level, when needs carry out increasing indoor set intake, can change context level successively and be adjusted window air conditioner increasing
Intake.It is that concrete operations are: if rotation speed of fan is the 1st by increasing the realization of indoor fan rotating speed as increased indoor intake
Level, then increase indoor fan rotating speed and can increase to its rotating speed be the 2nd grade, and now time interval is still less than the first preset duration, can
Continue to increase indoor fan rotating speed, its rotating speed is increased to into 3rd level, the like.
Step S50, adds up the described time interval number of times less than the first preset duration, when described number of times is more than preset times
Time, determine that current system exists abnormal, and control window air conditioner warning shutdown.
In the present embodiment, a variable parameter can be set for statistics time interval less than the first preset duration number of times,
Whenever being calculated time interval less than the first preset duration, this variable parameter adds one, and window air conditioner is shut down the most simultaneously
Dynamic restart, when described number of times is more than preset times, determine that current system exists abnormal, and control window air conditioner and report to the police and stop
Machine.Above-mentioned preset times can be configured according to actual needs, in the present embodiment, it is preferable that this preset times can be 10
Secondary.I.e. when counting on time interval and being 10 times less than the number of times of the first preset duration more than preset times, determine that system exists
Abnormal.
It is understood that during the aperture of the rotating speed of above-mentioned increase indoor fan and/or wind deflector, it is possible to increase intake,
Effectively reduce the time difference between two defrost cycles, if it is too small to continue adjacent defrost time difference, it may be possible to there is wind locking
Or other abnormal phenomenas, therefore defrost time interval is added up less than the first preset duration number of times, thus whether judge system
Exist abnormal, and window air conditioner is controlled.
When judging that window air conditioner system exists abnormal phenomena, window air conditioner is the most out of service no longer restarts, and enters simultaneously
Row is reported to the police, and reminds user to take measures to release warning.Do not release if reported to the police, then compressor is restarted the most automatically, it is to avoid compression
The wasting of resources that machine frequent start-stop causes and loss, reach to protect compressor, save the energy, arrange out of order effect as early as possible.
When the embodiment of the present invention adjusts intake and the defrost of air-conditioning according to air-conditioning defrost time and defrost time interval
Between, to improve the ruuning situation of air-conditioning.When, after the ruuning situation improving air-conditioning, the most persistently making the time interval of defrost relatively
Short, so that it is determined that air-conditioning exists abnormal phenomena, and when confirming to exist abnormal, control air-conditioning and shut down, improve operation of air conditioner
Reliability.
Further, with reference to Fig. 3, it is provided that defrosting control method second embodiment of a kind of window air conditioner of the present invention,
Defrosting control method first embodiment based on a kind of window air conditioner of the present invention, at the defrosting control method of window air conditioner
In two embodiments, the defrosting control method of above-mentioned window air conditioner also includes:
Step S60, it is judged that whether described time interval is less than the first preset duration, if then performing step S40；The most then
Perform step S70；
Step S70, when being less than the second preset duration when the defrost time of secondary defrost, controls to reduce the air intake of indoor set
Amount.
It should be noted that, in the present embodiment, when described time interval shorter (less than the first preset duration), then need
Improve defrost time interval, if defrost time interval is more than or equal to the second preset duration, do not process.
When defrost time too short (less than second preset duration) of time defrost, represent that defrost is abundant not, need to increase
The time of long defrost, to improve the degree of defrost.Extending the defrost time can be by reducing the intake realization of indoor set, in defrost
During, when reducing the intake of indoor set, evaporating temperature, beneficially defrost will be properly increased, thus extend the defrost time,
Improve the phenomenon that defrost is insufficient.
Concrete, the intake of described minimizing indoor set includes the rotating speed controlling to reduce indoor fan and/or controls to reduce
The aperture of wind deflector, i.e. increase indoor set intake can by degradation indoor fan rotating speed, reduce wind deflector aperture, with
Time reduce the various ways such as aperture of the rotating speed of indoor fan and wind deflector and realize.When described time interval is more than or equal to first
Preset duration, and when the defrost time of secondary defrost is less than the second preset duration, the intake controlling to reduce indoor set reduces room
The rotating speed of inner blower and/or the aperture of reduction wind deflector, if the defrost time is less than the second preset duration, continuation reduction indoor fan
Rotating speed and/or reduce the aperture of wind deflector, until making the defrost time more than the second preset duration.
Hereinafter the open range of the rotating speed of the indoor fan of window air conditioner and/or wind deflector can be respectively divided into 5 equally
Individual grade, when needs carry out reduce indoor set intake time, can change successively context level window air conditioner is adjusted with
Reduce intake.It is that concrete operations are: if rotation speed of fan is by reducing the realization of indoor fan rotating speed as reduced indoor intake
5th grade, then reduce indoor fan rotating speed and its rotating speed can be reduced to the 4th grade, if the defrost time less than the second preset duration, then continues
Continuous reduction rotation speed of fan, is reduced to 3rd level by its rotating speed, the like.
The embodiment of the present invention is by reducing the rotating speed of indoor fan and/or reducing the aperture of wind deflector, it is possible to reduce window
The intake of air-conditioner so that evaporating temperature properly increases, thus extend defrost time, beneficially defrost, improve defrosting and do not do
Clean phenomenon.
Further, it is provided that defrosting control method the 3rd embodiment of a kind of window air conditioner of the present invention, based on this
Defrosting control method second embodiment of bright a kind of window air conditioner, in defrosting control method the 3rd embodiment of window air conditioner
In, above-mentioned defrosting temperature includes that defrosting enters temperature and temperature is exited in defrosting；Described defrosting enters temperature and exits temperature less than defrosting
Degree；Above-mentioned steps S10 includes:
When described leaving air temp enters temperature less than described defrosting, control to enter defrost；
When described leaving air temp exits temperature more than described defrosting, control to exit defrost.
In the present embodiment, above-mentioned defrost temperature and exit temperature and can be configured according to actual needs, below will be with
Defrosting enters temperature and is set to-2 degrees Celsius, and defrosting is exited as a example by temperature is set to 1 degree Celsius and is described in detail.When the air-out surveyed
When temperature T0 is less than-2 degrees Celsius, enter defrost；During until leaving air temp T0 is higher than 1 degree Celsius, exits defrost, and control air-conditioning
Normal heating operation.
The present invention also provides for the defrosting control device of a kind of window air conditioner, with reference to Fig. 4, in one embodiment, the present invention
The defrosting control device of the window air conditioner provided includes:
First control module 10, enters defrost for controlling air-conditioning according to leaving air temp and the defrosting temperature preset or moves back
Go out defrost；
In the present embodiment, above-mentioned leaving air temp is the leaving air temp of indoor apparatus of air conditioner, common, at air-conditioning indoor heat exchanger
It is provided with temperature-sensitive bag, is used for detecting temperature.In the present embodiment, air-conditioning indoor heat exchanger can be arranged near air-out by acquisition
The temperature value of the temperature-sensitive bag detection of mouth side processes as the leaving air temp of the application.In following embodiment, with air-out
Temperature is that T0 is described in detail.Specifically, leaving air temp T0 is obtained in real time, according to size and the defrosting of current leaving air temp T0
The magnitude relationship of temperature thus control air-conditioning and enter defrost or exit defrost.
Logging modle 20, enters, for recording, the second time that first time point corresponding to defrost is corresponding with exiting defrost
Point；
In the present embodiment, can be by the time of default timer record air-conditioner operation or by current clock
The operation time of record air-conditioning.That is, when operation of air conditioner, when starting timer；Or when air-conditioner runs, record is current
Time point, obtain, according to the time of current time and the difference of time point, the time that air-conditioning currently runs.At operation of air conditioner
During, air-conditioning there may be repeatedly defrost action, specifically, in the present embodiment, can record enter each time defrost and
Exit the time point of defrost.It should be noted that, in the present embodiment, the time point exiting the defrost time exits defrost bar for meeting
Time point corresponding during part.As in figure 2 it is shown, repeatedly enter defrost for air-conditioning and exit the time shaft of time point of defrost.?
In Fig. 2,Represent that the 1st defrost cycle enters the first time point of defrost and exit the second time point of defrost respectively；Represent that (n-1)th defrost cycle enters the first time point of defrost and exit the second time point of defrost respectively；Represent that the n-th defrost cycle entered the first time point of defrost and exited the second time point of defrost respectively.
Acquisition module 30, for calculate according to described first time point and the second time point defrost time of each defrost with
And the time interval between time defrost and last defrost；
When each defrost end cycle, i.e. when meet exit defrost condition time, it will according to this defrost correspondence remember
The first time point of recordWith the second time pointAnd the second time point of last time defrost corresponding recordCalculate
Arrive when the time of time defrost, and the time interval between time defrost and last time defrost.Wherein, when the time of secondary defrost it isTime interval between secondary defrost and last defrost is
Second control module 40, for being less than the first preset duration when described time interval, and when the defrost of secondary defrost
Between more than the second preset duration time, control increase indoor set intake；When described time interval is preset less than first
Long, and when the defrost time of secondary defrost less than or equal to the second preset duration time, by when time defrost time lengthening to the most described the
Two preset duration, and increase the intake of indoor set；
It should be noted that, the size of above-mentioned first preset duration and the second preset duration all can be entered according to actual needs
Row is arranged.In the present embodiment, above-mentioned first preset duration for representing that defrost allows minimum time interval, when time interval relatively
In short-term (time i.e. less than the first preset duration), then show to there may be wind locking phenomenon, need to improve defrost time interval, to enter one
Step ground is confirmed whether to there is wind locking phenomenon.Above-mentioned second preset duration is for representing the defrost time that a defrost is minimum, working as
When the frost time is shorter (during less than the second preset duration), then shows that defrost is complete not, need to increase the time of defrost, to carry
The degree of high defrost.
When time interval is less than the first preset duration, and when the time of time defrost is more than the second preset duration, represent defrost
The shorter needs of time interval is improved, and the defrost time meets condition can be without modification.When the defrost time, time interval was shorter, to change
The improvement of frost time interval is then to extend it, and extending defrost time interval can be real by increasing the intake of indoor set
Existing.During refrigeration, when the intake of increase indoor set, the heat transfer effect of heat exchanger can be increased so that indoor heat exchange
The temperature of device suitably rises, and extends the time entering defrost next time, thus extends defrost time interval, improves between the defrost time
Every shorter situation.
When time interval is less than the first preset duration, and when the time of time defrost is less than the second preset duration, represent defrost
Time interval and defrost time are the shortest, and both of which needs to improve.When defrost time interval and defrost time are the shortest, to change
Frost time interval and the improvement of defrost time are then to extend respectively both this.First by defrost time lengthening to the most described the
Two preset duration so that the defrost time meets demand, it is ensured that defrost is fully, thoroughly；Then extend defrost time interval then to pass through
The intake increasing indoor set realizes.
The intake of described increase indoor set includes the rotating speed controlling to increase indoor fan and/or controls to increase wind deflector
Aperture, the intake i.e. increasing indoor set can be by increasing the rotating speed of indoor fan, increasing the aperture of wind deflector, increase room simultaneously
The various ways such as the rotating speed of inner blower and the aperture of wind deflector realize.Concrete, when the rotating speed and/or the control that increase indoor fan
Increase wind deflector aperture after, if time interval is still less than the first preset duration, continue increase indoor fan rotating speed and/or
Control to increase the aperture of wind deflector, until making time interval be more than the first preset duration.
The open range of the rotating speed of the indoor fan of window air conditioner and/or wind deflector below can be respectively divided into 5 etc.
Level, when needs carry out increasing indoor set intake, can change context level successively and be adjusted window air conditioner increasing
Intake.It is that concrete operations are: if rotation speed of fan is the 1st by increasing the realization of indoor fan rotating speed as increased indoor intake
Level, then increase indoor fan rotating speed and can increase to its rotating speed be the 2nd grade, and now time interval is still less than the first preset duration, can
Its rotating speed is increased to into 3rd level, the like.
3rd control module 50, for adding up the described time interval number of times less than the first preset duration, when described number of times
During more than preset times, determine that current system exists abnormal, and control window air conditioner warning shutdown.
In the present embodiment, a variable parameter can be set for statistics time interval less than the first preset duration number of times,
Whenever being calculated time interval less than the first preset duration, this variable parameter adds one, and window air conditioner is shut down the most simultaneously
Dynamic restart, when described number of times is more than preset times, determine that current system exists abnormal, and control window air conditioner and report to the police and stop
Machine.Above-mentioned preset times can be configured according to actual needs, in the present embodiment, it is preferable that this preset times can be 10
Secondary.I.e. when counting on time interval and being 10 times less than the number of times of the first preset duration more than preset times, determine that system exists
Abnormal.
It is understood that when above-mentioned increase wind deflector aperture and blower fan, it is possible to increase intake, effectively reduce two defrosts
Time difference between cycle, if it is too small to continue adjacent defrost time difference, it may be possible to there is exception or other abnormal phenomenas, therefore
To defrost time interval less than the first preset duration, it is less than or equal to the number of times of the second preset duration when the defrost time of secondary defrost
Add up, thus judge whether system exists exception, and window air conditioner is controlled.
When judging that window air conditioner system exists abnormal phenomena, window air conditioner is the most out of service no longer restarts, and enters simultaneously
Row is reported to the police, and reminds user to take measures to release warning.Do not release if reported to the police, then compressor is restarted the most automatically, it is to avoid compression
The wasting of resources that machine frequent start-stop causes and loss, reach to protect compressor, save the energy, arrange out of order effect as early as possible.
When the embodiment of the present invention adjusts intake and the defrost of air-conditioning according to air-conditioning defrost time and defrost time interval
Between, to improve the ruuning situation of air-conditioning.When, after the ruuning situation improving air-conditioning, the most persistently making the time interval of defrost relatively
Short, so that it is determined that air-conditioning exists abnormal phenomena, and when confirming abnormal, control air-conditioning and shut down, thus improve operation of air conditioner
Reliability.
Further, with reference to Fig. 5, it is provided that defrosting control device second embodiment of window air conditioner of the present invention, based on
The defrosting control device first embodiment of window air conditioner of the present invention, in defrosting control device second embodiment of window air conditioner
In, the defrosting control device of above-mentioned window air conditioner also includes:
4th control module 60, for when described time interval is more than or equal to the first preset duration, when when time defrost
When the defrost time is less than the second preset duration, control to reduce the intake of indoor set.
It should be noted that, in the present embodiment, when described time interval shorter (less than the first preset duration), then need
Improve defrost time interval, if defrost time interval is more than or equal to the second preset duration, do not process.
When defrost time too short (less than second preset duration) of time defrost, represent that defrost is abundant not, need to increase
The time of long defrost, to improve the degree of defrost.Extending the defrost time can be by reducing the intake realization of indoor set, in defrost
During, when reducing the intake of indoor set, evaporating temperature, beneficially defrost will be properly increased, thus extend the defrost time,
Improve the phenomenon that defrost is insufficient.
Concrete, the intake of described minimizing indoor set includes the rotating speed controlling to reduce indoor fan and/or controls to reduce
The aperture of wind deflector, i.e. increase indoor set intake can by degradation indoor fan rotating speed, reduce wind deflector aperture, with
Time reduce the various ways such as aperture of the rotating speed of indoor fan and wind deflector and realize.When described time interval is more than or equal to first
Preset duration, and when the defrost time of secondary defrost is less than the second preset duration, the intake controlling to reduce indoor set reduces room
The rotating speed of inner blower and/or the aperture of reduction wind deflector, if the defrost time is less than the second preset duration, continuation reduction indoor fan
Rotating speed and/or reduce the aperture of wind deflector, until making the defrost time more than the second preset duration.
Hereinafter the open range of the rotating speed of the indoor fan of window air conditioner and/or wind deflector can be respectively divided into 5 equally
Individual grade, when needs carry out reduce indoor set intake time, can change successively context level window air conditioner is adjusted with
Reduce intake.It is that concrete operations are: if rotation speed of fan is by reducing the realization of indoor fan rotating speed as reduced indoor intake
5th grade, then reduce indoor fan rotating speed and its rotating speed can be reduced to the 4th grade, if the defrost time is less than the second preset duration, then will
Its rotating speed is reduced to 3rd level, the like.
The embodiment of the present invention, by reducing the rotating speed of indoor fan and/or reducing the aperture of wind deflector, reduces window air conditioner
The intake of device so that evaporating temperature properly increases, thus extend defrost time, beneficially defrost, improve defrosting the most existing
As.
Further, it is provided that defrosting control device the 3rd embodiment of window air conditioner of the present invention, based on window of the present invention
Defrosting control device second embodiment of formula air-conditioner, in defrosting control device the 3rd embodiment of window air conditioner, described
Defrosting temperature includes that defrosting enters temperature and temperature is exited in defrosting；Described defrosting enters temperature and exits temperature less than defrosting；
Described first control module 10 specifically for, when described leaving air temp less than described defrosting enter temperature time, control
Enter defrost；When described leaving air temp exits temperature more than described defrosting, control to exit defrost.
In the present embodiment, above-mentioned defrost temperature and exit temperature and can be configured according to actual needs, below will be with
Defrosting enters temperature and is set to-2 degrees Celsius, and defrosting is exited as a example by temperature is set to 1 degree Celsius and is described in detail.When the air-out surveyed
When temperature T0 is less than-2 degrees Celsius, enter defrost；During until leaving air temp T0 is higher than 1 degree Celsius, exits defrost, and control air-conditioning
Normal heating operation.
These are only the preferred embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description and accompanying drawing content are made convert, or are directly or indirectly used in other relevant skills
Art field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. the defrosting control method of a window air conditioner, it is characterised in that the defrosting control method bag of described window air conditioner
Include following steps:
Control air-conditioning according to leaving air temp and the defrosting temperature preset enter defrost or exit defrost；
Record enters the second time point that first time point corresponding to defrost is corresponding with exiting defrost；
The defrost time of each defrost is calculated and when time defrost is with last according to described first time point and the second time point
Time interval between defrost；
When described time interval is less than the first preset duration, and when the defrost time of secondary defrost is more than the second preset duration, control
System increases the intake of indoor set；When described time interval is less than the first preset duration, and when the defrost time of time defrost
During less than or equal to the second preset duration, secondary defrost time lengthening extremely described second preset duration will be worked as, and increase indoor set
Intake；
Add up the described time interval number of times less than the first preset duration, when described number of times is more than preset times, determine current
System exists abnormal, and controls window air conditioner warning shutdown.
2. the defrosting control method of window air conditioner as claimed in claim 1, it is characterised in that entering of described increase indoor set
Air quantity includes the rotating speed controlling to increase indoor fan and/or controls to increase the aperture of wind deflector.
3. the defrosting control method of window air conditioner as claimed in claim 1, it is characterised in that described window air conditioner
Defrosting control method also includes:
When described time interval is more than or equal to the first preset duration, and when the defrost time of time defrost is less than the second preset duration
Time, control to reduce the intake of indoor set.
4. the defrosting control method of window air conditioner as claimed in claim 3, it is characterised in that entering of described reduction indoor set
Air quantity includes the rotating speed controlling to reduce indoor fan and/or controls to reduce the aperture of wind deflector.
5. the defrosting control method of window air conditioner as claimed in claim 1, it is characterised in that described defrosting temperature includes removing
Frost enters temperature and temperature is exited in defrosting；Described defrosting enters temperature and exits temperature less than defrosting；
Described control air-conditioning according to leaving air temp and the defrosting temperature preset and enter defrost or exit defrost and include:
When described leaving air temp enters temperature less than described defrosting, control to enter defrost；
When described leaving air temp exits temperature more than described defrosting, control to exit defrost.
6. the defrosting control device of a window air conditioner, it is characterised in that the defrosting control device bag of described window air conditioner
Include:
First control module, enters defrost or exiting for controlling air-conditioning according to leaving air temp and the defrosting temperature preset
Frost；
Logging modle, enters, for recording, the second time point that first time point corresponding to defrost is corresponding with exiting defrost；
Acquisition module, for calculating the defrost time of each defrost and when secondary according to described first time point and the second time point
Time interval between defrost and last defrost；
Second control module, for being less than the first preset duration when described time interval, and when the defrost time of time defrost is more than
During the second preset duration, control to increase the intake of indoor set；When described time interval is less than the first preset duration, and work as
When the defrost time of secondary defrost is less than or equal to the second preset duration, by when secondary defrost time lengthening to described second is preset
Long, and increase the intake of indoor set；
3rd control module, for adding up the described time interval number of times less than the first preset duration, when described number of times is more than pre-
If during number of times, determine that current system exists abnormal, and control window air conditioner warning shutdown.
7. the defrosting control device of window air conditioner as claimed in claim 6, it is characterised in that entering of described increase indoor set
Air quantity includes the rotating speed controlling to increase indoor fan and/or controls to increase the aperture of wind deflector.
8. the defrosting control device of window air conditioner as claimed in claim 6, it is characterised in that described window air conditioner
Defrosting control device also includes:
4th control module, for being more than or equal to the first preset duration when described time interval, and when the defrost of secondary defrost
Between less than the second preset duration time, control reduce indoor set intake.
9. the defrosting control device of window air conditioner as claimed in claim 8, it is characterised in that entering of described reduction indoor set
Air quantity includes the rotating speed controlling to reduce indoor fan and/or controls to reduce the aperture of wind deflector.
10. the defrosting control device of window air conditioner as claimed in claim 6, it is characterised in that described defrosting temperature includes
Defrosting enters temperature and temperature is exited in defrosting；Described defrosting enters temperature and exits temperature less than defrosting；
Described first control module specifically for, when described leaving air temp less than described defrosting enter temperature time, control entranceization
Frost；When described leaving air temp exits temperature more than described defrosting, control to exit defrost.
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| CN201610842018.5A CN106288230B (en) | 2016-09-22 | 2016-09-22 | The defrosting control method and device of window air conditioner |
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| CN201610842018.5A CN106288230B (en) | 2016-09-22 | 2016-09-22 | The defrosting control method and device of window air conditioner |
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| CN107238176A (en) * | 2017-06-13 | 2017-10-10 | 广东美的制冷设备有限公司 | The control method and air conditioner of air conditioner |
| CN109654678A (en) * | 2018-11-13 | 2019-04-19 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN109751713A (en) * | 2018-12-28 | 2019-05-14 | 广东美的暖通设备有限公司 | The defrosting control method and storage medium of a kind of air conditioner, air conditioner |
| CN110332652A (en) * | 2019-07-25 | 2019-10-15 | 宁波奥克斯电气股份有限公司 | A kind of defrosting control method, device and air conditioner |
| WO2019214254A1 (en) * | 2018-05-07 | 2019-11-14 | 广东美的暖通设备有限公司 | Air conditioner defrosting control method and device thereof |
| CN110631183A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN110631188A (en) * | 2018-06-25 | 2019-12-31 | 青岛海尔空调器有限总公司 | Defrosting control method and device for air conditioner |
| CN112013502A (en) * | 2019-05-30 | 2020-12-01 | 广东Tcl智能暖通设备有限公司 | Defrosting method of air conditioner heat exchanger and air conditioner |
| CN113587520A (en) * | 2021-08-17 | 2021-11-02 | 四川虹美智能科技有限公司 | Refrigerator defrosting system abnormity detection method and device |
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| CN113587520A (en) * | 2021-08-17 | 2021-11-02 | 四川虹美智能科技有限公司 | Refrigerator defrosting system abnormity detection method and device |
| CN113587520B (en) * | 2021-08-17 | 2022-09-27 | 四川虹美智能科技有限公司 | Refrigerator defrosting system abnormity detection method and device |
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