CN104654531B - Air conditioner and its control method of outer machine dedusting - Google Patents
Air conditioner and its control method of outer machine dedusting Download PDFInfo
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- CN104654531B CN104654531B CN201510104256.1A CN201510104256A CN104654531B CN 104654531 B CN104654531 B CN 104654531B CN 201510104256 A CN201510104256 A CN 201510104256A CN 104654531 B CN104654531 B CN 104654531B
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- air conditioner
- dedusting
- heat exchanger
- outdoor heat
- condition
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a kind of control method of air conditioner external dedusting, the control method comprises the following steps：Judge to enter after meeting dedusting condition and treat dedusting pattern；Obtain the operational mode and operational factor of air conditioner；And after judging to meet according to operational mode and operational factor and starting dedusting condition, the compressor of control air conditioner stops, and miscellaneous part except controlling outside blower fan and compressor enters holding state, and controls outer blower fan to be inverted.The control method of the present invention can reduce the dust and other attachments on air conditioner chamber's external heat exchanger outer surface, it is ensured that the Effec-tive Function of air conditioner.The present invention also proposes a kind of air conditioner.
Description
Technical field
The invention belongs to technical field of electric appliances, more particularly to a kind of control method of air conditioner external dedusting, and one kind
Air conditioner.
Background technology
The outer machine of air cooled air conditioner needs to rotate to form heat exchange air quantity by outer blower fan, and heat exchange air quantity is to outdoor heat exchanger
Exchange capability of heat influence it is very big.The outer machine of air-conditioning system is typically in the poor outdoor environment of air quality, the length of outer blower fan
Phase forced convertion is acted on, and can be caused the full dust of product and other attachments on outdoor heat exchanger outer surface, be influenceed the heat exchange of unit
Efficiency, it is impossible to ensure the long-term Effec-tive Function of air-conditioning system, or even also result in when laying dust is serious that outer machine high pressure is too high or low pressure
It is too low, cause disorderly closedown, cause economic loss and influence user to use.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is to propose a kind of control method of air conditioner external dedusting, and the control method can reduce air conditioner outdoor heat exchange
Dust and other attachments on device outer surface, it is ensured that the Effec-tive Function of air conditioner.
Another object of the present invention is to propose a kind of air conditioner of the use above method.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of control method of air conditioner external dedusting, should
Control method comprises the following steps：Judge to enter after meeting dedusting condition and treat dedusting pattern；Obtain the operational mode of air conditioner
And operational factor；And after judging to meet according to the operational mode and operational factor and starting dedusting condition, control the sky
The compressor of device is adjusted to stop, and the miscellaneous part except controlling outside blower fan and the compressor enters holding state, and control
The outer blower fan is made to be inverted.
The control method of air conditioner external dedusting according to embodiments of the present invention, is entering after after dedusting pattern, according to sky
The operational mode and operational factor of device is adjusted to judge whether that meeting startup dedusting condition selects to carry out dedusting opportunity, can be as far as possible
Ground avoids the influence used normal to user, or dust removing effects can be caused more obvious, and then when meeting dedusting condition,
Miscellaneous part except control compressor stops and controlled outside blower fan and compressor enters holding state, and the outer blower fan of control
Inverted, air-flow opposite during with normal rotation is formed in outdoor heat exchanger, so as to reduce outdoor heat exchanger appearance
Dust or other attachments on face, and then ensure the heat exchange amount of air conditioner heat source side so that air conditioner is more stablized, efficiently transported
OK.
Wherein, it is described to judge that meeting startup dedusting condition specifically includes according to the operational mode and operational factor：Work as institute
When stating operational mode for refrigeration mode, if the air conditioner is in holding state, judge to meet startup dedusting condition；And
When the operational mode is refrigeration mode, if the outer machine of the air conditioner is in running status, when the outer machine oil return
Judge to meet afterwards to start dedusting condition.
Further, it is described to judge that meeting startup dedusting condition specifically includes according to the operational mode and operational factor：
When the operational mode is heating mode, if the air conditioner is in running status, the temperature of the outdoor heat exchanger is judged
Whether degree is more than or equal to predetermined threshold value；If the temperature of the outdoor heat exchanger of the air conditioner is more than or equal to the default threshold
Value, then judge that meet the condensed water started in dedusting condition, outer machine cleans dry by outdoor heat exchanger after the outer machine oil return
Only, then dust removing effects are obvious；And if the temperature of the outdoor heat exchanger of the air conditioner is less than the predetermined threshold value, then control
The outer machine defrosting simultaneously judges to meet after defrosting terminates starts dedusting condition, when outer machine is defrosted, and condensed water is by outdoor
After heat exchanger cleans up and dries fin, dust removing effects are more obvious.
Specifically, operation is first powered on or from after the last progress dedusting to the outdoor heat exchanger from the air conditioner
Accumulated running time is recorded, if the accumulated running time, more than the first preset time, judgement meets dedusting condition.
In addition, after the control outer blower fan is inverted, the above method also includes：It is described outer in the control
After the time that blower fan is inverted is more than the second preset time, terminate dedusting.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of air conditioner, and the air conditioner includes：Compression
Machine；Outdoor heat exchanger and outer blower fan；Controller, the controller judges that controlling air conditioner to enter after meeting dedusting condition waits to remove
Dirt pattern, the controller obtains the operational mode and operational factor of the air conditioner, according to the operational mode and operation
Parameter judges to meet start dedusting condition after, control the compressor to stop, and except controlling blower fan and the compressor it
Outer miscellaneous part enters holding state, and controls the outer blower fan to be inverted to remove the outdoor heat exchanger
Dirt.
Air conditioner according to embodiments of the present invention, is entering after after dedusting pattern, and controller is according to the operation mould of air conditioner
Formula and operational factor judge whether that meeting startup dedusting condition selects to carry out dedusting opportunity, can be avoided as much as to user
The influence normally used, or dust removing effects can be caused more obvious, and then when meeting dedusting condition, control compressor stops
Only and the miscellaneous part except controlling outside blower fan and compressor enters holding state, and outer blower fan is controlled to be inverted,
Air-flow opposite during with normally rotating is formed in outdoor heat exchanger, so as to reduce dust on outdoor heat exchanger outer surface or
Other attachments, and then ensure the heat exchange amount of air conditioner heat source side, air conditioner is more stablized, Effec-tive Function.
Wherein, the operational mode is refrigeration mode, and the air conditioner meets startup dedusting bar when in holding state
Part, and the air conditioner outer machine when in running status, after the outer machine oil return meet start dedusting condition.
In one embodiment of the invention, the controller also includes temperature detector, for detecting that the outdoor is changed
The temperature of hot device, when the operational mode is heating mode and the air conditioner is in running status, the controller judges
Whether the temperature of the outdoor heat exchanger is more than or equal to predetermined threshold value, and the temperature of the outdoor heat exchanger in the air conditioner is big
When predetermined threshold value, the condensed water started in dedusting condition, outer machine is met after the outer machine oil return and changes outdoor
Hot device is cleaned up, then dust removing effects are obvious；And the temperature of the outdoor heat exchanger in the air conditioner is less than the default threshold
During value, control the outer machine defrosting and judge to meet after defrosting terminates to start dedusting condition, when outer machine is defrosted, condensation
After outdoor heat exchanger is cleaned up and dry fin by water, dust removing effects are more obvious.
Further, the controller is additionally operable to first power on operation or from the last time to the outdoor from the air conditioner
Heat exchanger carries out recording accumulated running time after dedusting, and judges when the accumulated running time is more than the first preset time
Meet dedusting condition.
In addition, the controller be additionally operable to control the time that the outer blower fan is inverted more than the second preset time it
Afterwards, dedusting is terminated.
Brief description of the drawings
Fig. 1 is the flow chart of the control method of air conditioner external dedusting according to an embodiment of the invention；
Fig. 2 is the outer blower fan and outdoor when normally being run according to the air conditioner external of the specific embodiment of the present invention
The schematic diagram of air flow in heat exchanger；
Outer blower fan and room when Fig. 3 is the air conditioner external dedusting operation according to another specific embodiment of the present invention
The schematic diagram of air flow in external heat exchanger；
The controlling party of machine dedusting outside when Fig. 4 is the air conditioner operation refrigeration mode according to the specific embodiment of the present invention
The flow chart of method；
The control method of outer machine dedusting when Fig. 5 is air conditioner operation heating mode according to another embodiment of the invention
Flow chart；
Fig. 6 is the block diagram of air conditioner according to an embodiment of the invention；And
Fig. 7 is the block diagram of air conditioner according to another embodiment of the invention.
Reference：
Air conditioner 100,
Compressor 10, outdoor heat exchanger 20, outdoor fan 30 and controller 40, temperature detector 50.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Below with reference to the accompanying drawings describe the control method of the air conditioner external dedusting of the embodiment of the present invention and use this method
Air conditioner.
The basic ideas for the dedusting that the air conditioner of the embodiment of the present invention and its control method of outer machine dedusting are provided are：Utilize
The blower fan turning displacement control device of air conditioner inverts outer blower fan, coordinates corresponding control logic, forces to remove outdoor heat exchange
Dust and other attachments on device outer surface, it is ensured that the heat exchange amount of air conditioner heat source side so that air conditioner can be steady for a long time
Determine, functions reliably and efficiently run.
Control method first to the air conditioner external dedusting of the embodiment of the present invention is illustrated.
Fig. 1 is the flow chart of the control method of the air conditioner external dedusting according to one embodiment of the present of invention.Such as Fig. 1 institutes
Show, the control method comprises the following steps：
S1, judges to enter after meeting dedusting condition and treats dedusting pattern.
Specifically, first power on operation from air conditioner or outdoor heat exchanger is carried out to record accumulative after dedusting from last
Run time, if accumulated running time, more than the first preset time, judgement meets dedusting condition.For example, from outer machine first
Secondary operation carries out bulk registration run time, when accumulated running time, T met T >=Ta, then controls outer machine to enter and treat dedusting mould
Formula, wherein, Ta is the first preset time, is herein the dedusting cycle of setting, can be entered according to the actual installation environment of outer machine
Row is specific to be set, for example, the first preset time could be arranged to 168 hours.
S2, obtains the operational mode and operational factor of air conditioner.
S3, after operational mode and operational factor judgement satisfaction startup dedusting condition, controls the compressor of air conditioner
Stop, and the miscellaneous part except controlling outside blower fan and compressor enters holding state, and control outer blower fan to be inverted.
Specifically, outer machine is when whne dedusting pattern, can be according to operational mode and the operational factor such as room of air conditioner
External environment temperature selects dedusting opportunity.For example, in order to be reduced as far as influence of the dedusting action to indoor user side, Ke Yixuan
Select and treating in dedusting mode time that the refrigeration of the unit of air conditioner or the demand heated are zero, that is, judge to meet and start dedusting bar
Part, or the outer machine of air conditioner are in defrost or oil return state, then are that judgement meets startup and removed after defrost or oil return
Dirt condition, just gives dedusting action.According to operational mode and operational factor selection dedusting opportunity, can be avoided as much as to
The influence that family is normally used, or dust removing effects can be caused more obvious.
Air conditioner accumulative operation certain time, and after meeting startup dedusting condition, external machine carries out dedusting action, except
The control logic of each parts of air conditioner is during dirt：Control compressor to stop, and control except outer blower fan and compressor
Outside miscellaneous part enter holding state, control outer blower fan with rotate under normal circumstances it is in opposite direction, and then can produce
Back draught with certain blast, and guide the outdoor heat exchanger of the external machine of air-flow to carry out reverse dedusting, remove outdoor heat exchange
The attachment of device outer surface.
For example, being illustrated in addition exemplified by the top air-out form of machine, it is to be understood that for actual product, top
The others air-out such as air-out, side air-out and oblique air-out form can use the control method of the embodiment of the present invention.Fig. 2 is one
Air-out form unit normally runs the schematic diagram of the air flow of outdoor heat exchanger at the top of kind, as shown in Fig. 2 wherein, 1 is expressed as
Air-flow, 2 are denoted as outdoor heat exchanger, and 3 are expressed as outer blower fan.When the unit of air conditioner is normally run, air is from outdoor heat exchange
Flowed in device and outdoor is expelled to by outer blower fan.Fig. 3 is the schematic diagram that air conditioner carries out outdoor air flows during dedusting operation,
As shown in figure 3, when dedusting is run, in opposite direction when the direction of rotation of blower fan is with normal operation, then air is in outdoor heat exchange
Opposite flow during with normal operation is formed in device, now the miscellaneous part of air conditioner is in holding state, so as to reach pair
Outdoor heat exchanger carries out the purpose of dedusting, it is possible to reduce dust and other attachments on outdoor heat exchanger outer surface, it is ensured that
The heat exchange amount of air conditioner heat source side so that air conditioner can be with Effec-tive Function.
It should be noted that when freezing oil return, four-way valve is heating oil return without switching (being in OFF off-positions)
When, four-way valve need to be switched to the OFF state of refrigeration mode by ON (upper electricity) state of heating condition, and now, air-conditioning system is in
Refrigerant temperature is in the condition of high temperature in kind of refrigeration cycle, outdoor heat exchanger, will can be produced in heating operations in heat exchanger table
The frost or condensate evaporation in face, the only remaining dust dried of heat exchanger surface, rear fan reverse and will effectively can adhere to
Dust on heat exchangers is blown off, otherwise, and the mixture of water and dust is difficult to be fallen by wind.
Detailed process is：If the 1, there are condensed water or frost (heating operations) in outdoor heat exchanger surface, it is necessary to be followed by refrigeration
Ring is first evaporated with high temperature refrigerant, then blows outside heat exchanger surface dust off by blower fan antiport；If the 2, outdoor
Heat exchanger surface evaporated condensation water (process of refrigerastion), then only need to remove heat exchanger surface dust by the operating of blower fan direction.
It is below that the control method according to the different operational mode of air conditioner and the external machine dedusting of operational factor is further
Illustrate.
Dust removal process when running refrigeration mode to air conditioner first is illustrated, and Fig. 4 is a reality according to the present invention
Apply the flow chart of the control method of the air conditioner external dedusting of example.As shown in figure 4, when air conditioner runs refrigeration mode, air-conditioning
The control method of the outer machine dedusting of device includes：
S10, the accumulated running time of outer machine reaches the first preset time.
For example, when air conditioner first powers on operation or accumulated running time after apart from last dedusting reaches Ta
Value.
S20, into dedusting pattern is treated, judges the operational mode residing for air conditioner.
And according to the operational mode of air conditioner, respectively enter step S30, S40 and S50.
S30, air conditioner is in holding state, is directly entered dedusting pattern.
When operational mode is refrigeration mode, if air conditioner is in holding state, judge to meet startup dedusting condition,
Dedusting pattern can be directly entered, that is, performs step S60.
S40, air conditioner external is in running status, then treats to enter dedusting pattern after its oil return.
When operational mode is refrigeration mode, after dedusting pattern is treated in air conditioner entrance, if the outer machine of air conditioner is in
Running status, judges to meet startup dedusting condition, i.e., now outdoor unit surface dirt can be blown away after outer machine oil return,
Then treat to enter dedusting pattern after its oil return, i.e., into step S60.
S50, air conditioner breaks down, then waits trouble shooting.
S60, controls outer blower fan to reversely rotate, and compressor stops, and keeps miscellaneous part to be in holding state.
I.e. after dedusting pattern is entered, outer blower motor is controlled to drive fan blade inverted running, the shape in outdoor heat exchanger
Opposite flow during into normal operation, and control miscellaneous part to be in holding state, the attachment on outdoor heat exchanger surface exists
Come off in the presence of back draught, so as to reach the purpose to outdoor heat exchanger dedusting.
S70, the dedusting time exceedes after setting time, and dedusting terminates.
For example, after the time that outer blower fan is inverted is controlled more than the second preset time, terminating dedusting.Wherein,
Two preset times are that can be set as the case may be the dedusting time, for example, it can be set to T=3 minutes dedusting time, removes
After dirt terminates, counter re-starts timing, and then after reaching in new accumulated running time Ta, control air conditioner enters
Dedusting pattern, that is, carry out periodicity unit automatic dust removing.
When running heating mode to air conditioner below, air conditioner external dust removal process is illustrated.Fig. 5 is according to the present invention
Another embodiment air conditioner external dedusting control method flow chart, as shown in figure 5, the control method include it is following
Step：
S100, outer machine accumulated running time reaches the first preset time.
For example, when air conditioner first powers on operation or accumulated running time after apart from last dedusting reaches Ta
Value.
S200, into dedusting pattern is treated, judges whether air conditioner is in normal operating condition.
If air conditioner is in normal operating condition, into step S400, otherwise into step S300.
S300, waits air conditioner start operation, and after air conditioner start, return to S200.
Treating within dedusting mode time, when air conditioner is in holding state, then after grade air conditioner start operation,
Mode during according still further to normal operating condition carries out dedusting action.
S400, judges whether the temperature of outdoor heat exchanger is more than or equal to predetermined threshold value.
For example, judging whether the liquid pipe temperature of outdoor heat exchanger is more than or equal to 0 DEG C, if the outdoor heat exchanger of air conditioner
Temperature be more than or equal to predetermined threshold value, then into step S500, if the temperature of the outdoor heat exchanger of air conditioner be less than it is default
Threshold value, then into step S600.
S500, air conditioner reaches the oil return time, carries out oil return.
For example, when judging that the liquid pipe temperature of outdoor heat exchanger is more than or equal to 0 DEG C, air conditioner reaches the oil return time, control
Four-way valve is switched over, and carries out oil return control, judges to meet startup dedusting condition after outer machine oil return, then into dedusting mould
Formula, i.e., into step S700.When air conditioner carries out oil return, the condensed water in outer machine cleans up outdoor heat exchanger, then dedusting
Effect is obvious.
S600, air conditioner reaches defrosting condition, carries out defrosting control.
For example, when judging that the liquid pipe temperature of outdoor heat exchanger is less than 0 DEG C, air conditioner meets defrosting condition, four-way valve is controlled
Switch over, control air conditioner operation refrigeration mode is so that outer machine is defrosted, i.e., by frost and the condensed water steaming on outdoor unit surface
Hair falls, and judges to meet after defrosting terminates and start dedusting condition, i.e., now the dust on outdoor unit surface is relatively dry, can be with
It is blown away, then into dedusting pattern, that is, performs step S700, wherein, when outer machine is defrosted, condensed water is by outdoor heat exchange
After device cleans up and dries fin, dust removing effects are more obvious.
S700, controls outer blower fan to reversely rotate, and compressor stops, and keeps miscellaneous part to be in holding state, and four-way valve is protected
Hold state when oil return or defrosting.
Air conditioner is after defrosting or oil return terminate, and into dedusting pattern, controlled motor drives the fan blade of outer blower fan reverse
Rotation, forms air-flow opposite during with normal operation, and miscellaneous part is in holding state.And in the time for controlling outer blower fan reversion
After the second preset time such as 3 minutes, dedusting release, into step S800.
S800, air conditioner enters normal operating condition.
After dedusting release, counter O reset, and the accumulated running time of the air conditioner of dedusting next time is carried out
Timing.
In summary, the control method of the air conditioner external dedusting of the embodiment of the present invention, is entering after after dedusting pattern, root
Judge whether that meeting startup dedusting condition selects to carry out dedusting opportunity, Ke Yijin according to the operational mode and operational factor of air conditioner
The influence used normal to user is possibly avoided, or dust removing effects can be caused more obvious, and then is meeting dedusting bar
During part, the miscellaneous part except control compressor stops and controlled outside blower fan and compressor enters holding state, and controls
Outer blower fan is inverted, and air-flow opposite during with normal rotation is formed in outdoor heat exchanger, so as to reduce outdoor heat exchange
Dust or other attachments on device outer surface, so ensure air conditioner heat source side heat exchange amount so that air conditioner more stablize,
Effec-tive Function.
In addition, when air conditioner runs heating mode, in oil return or the end that defrosts if in normal operating condition
Afterwards, dedusting action is carried out, dust removing effects are more obvious.
To realize above-described embodiment, another aspect of the present invention proposes a kind of air conditioner.
Fig. 6 is the block diagram of the air conditioner according to one embodiment of the present of invention, as shown in fig. 6, the air conditioner 100 includes pressure
Contracting machine 10, outdoor heat exchanger 20, outer blower fan 30 and controller 40.
Controller 40 judges that control air conditioner 100 is into dedusting pattern is treated after meeting dedusting condition, specifically, from air-conditioning
Device 100 first powers on operation or outdoor heat exchanger 20 is carried out to record accumulated running time after dedusting from last, if tired
Run time is counted more than the first preset time, then the judgement of controller 40 meets dedusting condition.For example, from outer machine for the first time run into
Row bulk registration run time, when accumulated running time, T met T >=Ta, then controller 40 controls outer machine to enter and treats dedusting mould
Formula, wherein, Ta is the first preset time, is herein the dedusting cycle of setting, can be entered according to the actual installation environment of outer machine
Row is specific to be set, for example, the first preset time could be arranged to 168 hours.
Treating in the dedusting time, controller 40 obtains the operational mode and operational factor of air conditioner 100, according to operation mould
Formula and operational factor judge after satisfaction startup dedusting condition that control compressor 10 stops, and blower fan 30 and compression except control
Miscellaneous part outside machine 10 enters holding state, and controls outer blower fan 30 to be inverted to remove outdoor heat exchanger 20
Dirt.
Specifically, outer machine is when whne dedusting pattern, operational mode and operation that controller 40 can be according to air conditioner 100
Parameter such as outdoor environment temperature selection dedusting opportunity.For example, in order to be reduced as far as dedusting action to indoor user side
Influence, can select treating in dedusting mode time that the refrigeration of the unit of air conditioner 100 or the demand heated are zero, that is, judge
The dedusting condition that starts is met, or the outer machine of air conditioner 100 is in defrost or oil return state, then after defrost or oil return
Judge to meet to start dedusting condition, just give dedusting action.Controller 40 selects dedusting according to operational mode and operational factor
On opportunity, the influence used normal to user can be avoided as much as, or dust removing effects can be caused more obvious.
The accumulative operation certain time of air conditioner 100, and after meeting startup dedusting condition, controller 40 controls outer machine to carry out
Dedusting is acted, and the control logic of each parts of air conditioner 100 is during dedusting：Control compressor 10 stops, and controls
Miscellaneous part outside outer blower fan 30 and compressor 10 enters holding state, controls outer blower fan 30 with rotating under normal circumstances
It is in opposite direction, and then the back draught with certain blast can be produced, and guide the outdoor heat exchanger 20 of the external machine of air-flow
Reverse dedusting is carried out, the dust and other attachments of outdoor heat exchanger outer surface is removed.
It will be carried out below according to the different operational mode of air conditioner 100 and the process of the external machine dedusting of operational factor detailed
Explanation.
Dust removal process when running refrigeration mode to air conditioner 100 first is illustrated.It is refrigeration mode in operational mode
When, controller 40 judges that air conditioner 100 is in holding state and met and starts dedusting condition, and at the outer machine of air conditioner 100
When running status, judge to meet startup dedusting condition after outer machine oil return.After startup dedusting condition is met, controller
The motor of the 40 outer blower fans 30 of control drives fan blade inverted running, and opposite gas during with normal operation is formed in outdoor heat exchanger 20
Stream, and control miscellaneous part to be in holding state, the attachment on the surface of outdoor heat exchanger 20 comes off in the presence of back draught,
So as to reach the purpose to the dedusting of outdoor heat exchanger 20.
In addition, as shown in fig. 7, air conditioner 100 also includes temperature detector 50, the temperature for detecting outdoor heat exchanger 20
Degree, when operational mode is heating mode and air conditioner 100 is in running status, and then controller 40 judges outdoor heat exchanger 20
Temperature whether be more than or equal to such as 0 DEG C of predetermined threshold value, and outdoor heat exchanger 20 temperature be more than or equal to predetermined threshold value
When, judge to meet the dedusting condition that starts after outer machine oil return, and the temperature of the outdoor heat exchanger 20 in air conditioner 100 is less than in advance
If during threshold value, controlling outer machine defrosting and judging to meet after defrosting terminates to start dedusting condition.I.e. controller 40 controls outer machine
After defrosting or oil return terminate, into dedusting pattern, controlled motor drives the fan blade of outer blower fan 30 to reversely rotate, and is formed and just
Opposite air-flow when often running, miscellaneous part is in holding state.
And then, controller 40 terminates to remove after the time that outer blower fan 30 is inverted is controlled more than the second preset time
Dirt.Wherein, the second preset time is that can be set as the case may be the dedusting time, for example, it can be set to dedusting time T
=3 minutes, after dedusting terminates, counter re-started timing, and then after reaching in new accumulated running time Ta, control
Air conditioner 100 enters dedusting pattern, that is, carries out periodicity unit automatic dust removing.
The air conditioner of the embodiment of the present invention, is entering after after dedusting pattern, controller according to the operational mode of air conditioner and
Operational factor judges whether that meeting startup dedusting condition selects to carry out dedusting opportunity, can be avoided as much as normal to user
The influence used, or dust removing effects can be caused more obvious, and then when meeting dedusting condition, control compressor stops simultaneously
Miscellaneous part except control outside blower fan and compressor enters holding state, and controls outer blower fan to be inverted, in outdoor
Air-flow opposite during with normally rotating is formed in heat exchanger, so as to reduce dust on outdoor heat exchanger outer surface or other
Attachment, and then ensure the heat exchange amount of air conditioner heat source side, air conditioner is more stablized, Effec-tive Function.
In addition, when air conditioner runs heating mode, in oil return or the end that defrosts if in normal operating condition
Afterwards, dedusting action is carried out, dust removing effects are more obvious.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, represent to include
Module, fragment or the portion of the code of one or more executable instructions for the step of realizing specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not be by shown or discussion suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use
In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wirings
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
Rapid to can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as
Fruit is realized using in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..Although having been shown and retouching above
Embodiments of the invention are stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention
System, one of ordinary skill in the art can be changed to above-described embodiment, change, replace and become within the scope of the invention
Type.
Claims (10)
1. a kind of control method of air conditioner external dedusting, it is characterised in that comprise the following steps：
Judge to enter after meeting dedusting condition and treat dedusting pattern；
Obtain the operational mode and operational factor of air conditioner；Wherein,
Judged treating the refrigeration or system of the unit of the air conditioner in the dedusting time according to the operational mode and operational factor
When the demand of heat is zero, it is determined that the dedusting condition that starts is met, and then, control the compressor of the air conditioner to stop, and control to remove
Miscellaneous part outside outer blower fan and the compressor enters holding state, and controls the outer blower fan to be inverted.
2. the control method of air conditioner external dedusting as claimed in claim 1, it is characterised in that described according to the operation mould
Formula and operational factor judge treating that the refrigeration of the unit of the air conditioner or the demand heated are zero specific bag in the dedusting time
Include：
When the operational mode is refrigeration mode, if the air conditioner is in holding state, judge to meet startup dedusting
Condition；And
When the operational mode is refrigeration mode, if the outer machine of the air conditioner is in running status, when the outer machine
Judge to meet after oil return to start dedusting condition.
3. the control method of air conditioner external dedusting as claimed in claim 1, it is characterised in that described according to the operation mould
Formula and operational factor judge treating that the refrigeration of the unit of the air conditioner or the demand heated are zero specific bag in the dedusting time
Include：
When the operational mode is heating mode, if the air conditioner is in running status, the temperature of outdoor heat exchanger is judged
Whether degree is more than or equal to predetermined threshold value；
If the temperature of the outdoor heat exchanger of the air conditioner is more than or equal to the predetermined threshold value, sentence after outer machine oil return
Disconnected meet starts dedusting condition；And
If the temperature of the outdoor heat exchanger of the air conditioner is less than the predetermined threshold value, control the outer machine defrosting and except
Frost judges to meet after terminating starts dedusting condition.
4. the control method of air conditioner external dedusting as claimed in claim 1, it is characterised in that opened first from the air conditioner
Machine runs or outdoor heat exchanger is carried out to record accumulated running time after dedusting from last, if the accumulated running time
More than the first preset time, then judge to meet dedusting condition.
5. the control method of air conditioner external dedusting as claimed in claim 1, it is characterised in that in the control exogenous wind
After machine is inverted, in addition to：
After the time that the control outer blower fan is inverted is more than the second preset time, terminate dedusting.
6. a kind of air conditioner, it is characterised in that including：
Compressor；
Outdoor heat exchanger and outer blower fan；
Controller, the controller judges treating that the refrigeration of the unit of the air conditioner or the demand heated are in the dedusting time
When zero, it is determined that meeting dedusting condition, and then air conditioner is controlled to enter dedusting pattern for the treatment of, the controller obtains the air conditioner
Operational mode and operational factor, after judging that satisfaction starts dedusting condition according to the operational mode and operational factor, control
The compressor stops, and the miscellaneous part except controlling outside blower fan and the compressor enters holding state, and control
The outer blower fan is inverted to carry out dedusting to the outdoor heat exchanger.
7. air conditioner as claimed in claim 6, it is characterised in that the operational mode is refrigeration mode, the air conditioner exists
Meet the dedusting condition that starts during in holding state, and the air conditioner outer machine when in running status, described outer
Met after machine oil return and judge that in the demand for treating the refrigeration of the unit of the air conditioner in the dedusting time be zero.
8. air conditioner as claimed in claim 6, it is characterised in that the air conditioner also includes：
Temperature detector, the temperature for detecting the outdoor heat exchanger is heating mode and the sky in the operational mode
When adjusting device in running status, the controller judges whether the temperature of the outdoor heat exchanger is more than or equal to predetermined threshold value,
And the temperature of the outdoor heat exchanger in the air conditioner, when being more than or equal to predetermined threshold value, after outer machine oil return meeting startup removes
Dirt condition, and the temperature of the outdoor heat exchanger in the air conditioner is when being less than the predetermined threshold value, controls the outer machine defrosting
And judge that in the demand heated for treating the unit of the air conditioner in the dedusting time be zero after defrosting terminates.
9. air conditioner as claimed in claim 6, it is characterised in that the controller is additionally operable to first power on from the air conditioner
Operation carries out recording accumulated running time after dedusting from last to the outdoor heat exchanger, and in the accumulative operation
Between more than the first preset time when judge meet dedusting condition.
10. air conditioner as claimed in claim 6, it is characterised in that the controller is additionally operable to controlling the outer blower fan to carry out
After the time of reversion is more than the second preset time, terminate dedusting.
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|---|---|---|---|
| CN201510104256.1A CN104654531B (en) | 2015-03-10 | 2015-03-10 | Air conditioner and its control method of outer machine dedusting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510104256.1A CN104654531B (en) | 2015-03-10 | 2015-03-10 | Air conditioner and its control method of outer machine dedusting |
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| CN104654531B true CN104654531B (en) | 2017-10-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105202695B (en) * | 2015-09-07 | 2018-11-16 | Tcl空调器(中山)有限公司 | The dedusting control method and device of heat exchanger of outdoor machine of air conditioner |
| CN107246701A (en) * | 2016-09-13 | 2017-10-13 | 奥克斯空调股份有限公司 | A kind of air conditioner chamber's external heat exchanger defrosting or snow removing control method |
| CN106765876A (en) * | 2016-11-24 | 2017-05-31 | 广东美的制冷设备有限公司 | Automated cleaning air-conditioner outdoor unit control method and device, air-conditioner |
| CN106871390B (en) * | 2017-04-24 | 2020-04-07 | 广东美的暖通设备有限公司 | Dust removal control method, dust removal control device and air conditioner |
| CN109237733A (en) * | 2017-07-04 | 2019-01-18 | 奥克斯空调股份有限公司 | Outdoor machine of air-conditioner automatic block-resistant method |
| CN110836441B (en) * | 2018-08-17 | 2021-10-29 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
| CN109654800A (en) * | 2018-12-20 | 2019-04-19 | 合肥美的电冰箱有限公司 | Control method, device and the refrigeration equipment of refrigeration equipment |
| CN110219817A (en) * | 2019-06-13 | 2019-09-10 | 珠海格力电器股份有限公司 | Dust removal method, device, air-conditioning system and the storage medium for controlling blower dedusting |
| CN110469941B (en) * | 2019-07-17 | 2021-09-21 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN110469940B (en) * | 2019-07-17 | 2021-09-21 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN110454906B (en) * | 2019-08-05 | 2021-04-20 | 广东美的制冷设备有限公司 | Dust removal method and device for air conditioner, air conditioner and electronic equipment |
| CN110567118B (en) * | 2019-09-03 | 2021-02-26 | 珠海格力电器股份有限公司 | Automatic dust removal method and device for unit and unit |
| CN112856741B (en) * | 2019-11-28 | 2022-09-27 | 广东美的制冷设备有限公司 | Air conditioner deodorization method, equipment and computer readable storage medium |
| CN112361532A (en) * | 2020-09-10 | 2021-02-12 | 江苏友奥电器有限公司 | Dust removal method and device for outdoor unit of household air conditioner |
| CN112283863A (en) * | 2020-09-21 | 2021-01-29 | 珠海格力电器股份有限公司 | Self-cleaning control method and device for air conditioner external unit, storage medium and air conditioner |
| CN113028518A (en) * | 2021-04-20 | 2021-06-25 | 宁波奥克斯电气股份有限公司 | Automatic dust removal method for air conditioner outdoor unit and air conditioner |
| CN113669841B (en) * | 2021-08-31 | 2022-09-30 | 佛山市顺德区美的电子科技有限公司 | Method and device for detecting dust accumulation blockage of air conditioner, air conditioner and storage medium |
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