CN105953365A - Air conditioner and defrosting control method thereof - Google Patents
Air conditioner and defrosting control method thereof Download PDFInfo
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- CN105953365A CN105953365A CN201610327405.5A CN201610327405A CN105953365A CN 105953365 A CN105953365 A CN 105953365A CN 201610327405 A CN201610327405 A CN 201610327405A CN 105953365 A CN105953365 A CN 105953365A
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- Prior art keywords
- conditioner
- air
- defrost
- rotating speed
- heating operation
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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
- F24F11/62—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
- F24F11/30—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
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- 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
- F24F11/65—Electronic processing for selecting an operating mode
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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 an air conditioner and a defrosting control method thereof. The method comprises the following steps: when the air conditioner is operated in a heating mode, the tube temperature of an outdoor heat exchanger in the air conditioner is detected; the air conditioner is controlled to actuate a defrosting action according to the tube temperature of the outdoor heat exchanger and the heating operation time of the air conditioner, and the rotating speed of an outdoor fan in the air conditioner is obtained when the air conditioner actuates the defrosting action; and a rotating speed difference value between the obtained rotating speed of the outdoor fan and the initial rotating speed of the outdoor fan in initial operation of the air conditioner with the heating mode is calculated, and the heating operation time before next actuation of the defrosting action by the air conditioner is adjusted according to the rotating speed difference value. The method adjusts the heating operation time before next actuation of the defrosting action by the air conditioner according to the difference value between the rotating speed of the outdoor fan and the initial rotating speed of the outdoor fan in initial operation of the air conditioner with the heating mode, prevents the problem of frequent defrosting or incomplete defrosting of the air conditioner, improves the defrosting effect of the air conditioner, and improves the heating effect of the air conditioner.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of air-conditioner and defrosting control method thereof.
Background technology
When air-conditioner runs with heating mode, can often there is frost in outdoor heat exchanger.When after outdoor heat exchanger frosting,
The frost on outdoor heat exchanger is removed typically by defrost pattern.
In correlation technique, the Defrost method of air-conditioner is mainly realized by timing defrost, i.e. changes according to operation time and outdoor
The pipe temperature of hot device carrys out defrost.Its principle is, reaches the Guan Wenda of Preset Time and outdoor heat exchanger when the operation time of air-conditioner
After preset temperature, air-conditioner starts defrost；After defrost completes, air-conditioner is properly functioning, when again meeting above-mentioned condition
Time (the operation time of air-conditioner reaches the Guan Wen of Preset Time and outdoor heat exchanger and reaches preset temperature), defrost again.
Although the method can remove the frost on outdoor heat exchanger in most cases in time, but still there is certain limitation
Property: if outdoor air relative humidity is less, reach the Guan Wenda of Preset Time and outdoor heat exchanger in the operation time of air-conditioner
During to preset temperature, outdoor heat exchanger there will be that frosting is little or the situation of basic frost-free, but now air-conditioner still can enter
Row defrost；If outdoor air relative humidity is relatively big, reach the pipe of Preset Time and outdoor heat exchanger in the operation time of air-conditioner
When temperature reaches preset temperature, outdoor heat exchanger there will be the situation that frosting is thicker, now carries out defrost, but is easier to defrost occur
Sordid phenomenon.
Therefore, there is " frequent defrost " or the problem of " defrost is incomplete " in the Defrost method of above-mentioned air-conditioner, thus causes air-conditioning
The defrosting effect of device is poor, and then affects the heating effect of air-conditioner.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the one of the present invention
Purpose is to propose the defrosting control method of a kind of air-conditioner, and the method can avoid the frequent defrost of air-conditioner or defrost incomplete
Problem, thus improve the defrosting effect of air-conditioner, and then improve the heating effect of air-conditioner.
Further object is that a kind of air-conditioner of proposition.
For reaching above-mentioned purpose, one aspect of the present invention embodiment proposes the defrosting control method of a kind of air-conditioner, including following
Step: when described air-conditioner runs with heating mode, detects the Guan Wen of outdoor heat exchanger in described air-conditioner；According to described
The heating operation time of the gentle described air-conditioner of the pipe of outdoor heat exchanger controls described air-conditioner and performs defrost action, and described
Air-conditioner performs to obtain the rotating speed of outdoor fan in described air-conditioner during defrost action；Turning of the described outdoor fan that calculating obtains
Fast with described air-conditioner with the rotating speed difference of the initial speed of described outdoor fan during described heating mode initial launch, and according to
Described rotating speed difference regulates described air-conditioner and performs the heating operation time before described defrost action next time.
The defrosting control method of air-conditioner according to embodiments of the present invention, when air-conditioner runs with heating mode, first detects
The Guan Wen of outdoor heat exchanger in air-conditioner, then controls sky according to the heating operation time of the pipe gentleness air-conditioner of outdoor heat exchanger
Adjust device to perform defrost action, and obtain the rotating speed of outdoor fan in air-conditioner when air-conditioner performs defrost action, finally calculate
Rotating speed and the air-conditioner of the outdoor fan obtained with the rotating speed difference of the initial speed of outdoor fan during heating mode initial launch,
And next time perform the heating operation time before defrost action according to rotating speed difference regulation air-conditioner, so that it is guaranteed that outdoor heat exchange
Each defrost of device is all in OK range, it is to avoid the frequent defrost of air-conditioner or the incomplete problem of defrost, improves air-conditioner
Defrosting effect, and then improve the heating effect of air-conditioner.
According to one embodiment of present invention, according to the heating operation time of the gentle described air-conditioner of the pipe of described outdoor heat exchanger
Judge that described air-conditioner performs defrost action, including: when described air-conditioner reaches described with the time that described heating mode runs
When the air-conditioner last time performs the heating operation time of regulation during defrost action, if the Guan Wen of described outdoor heat exchanger is less than
In default defrost Guan Wen, then control described air-conditioner and perform described defrost action.
According to one embodiment of present invention, perform described defrost according to the described rotating speed difference described air-conditioner of regulation to move next time
The heating operation time before work, including: if described rotating speed difference more than or equal to the speed discrepancy lower limit preset and is less than
In default speed discrepancy higher limit, then keep described air-conditioner to perform the heating operation time before described defrost action next time
Constant；If described rotating speed difference is more than described default speed discrepancy higher limit, then shortens described air-conditioner and perform institute next time
State the heating operation time before defrost action；If described rotating speed difference is less than described default speed discrepancy lower limit, then prolong
Long described air-conditioner performs the heating operation time before described defrost action next time.
According to one embodiment of present invention, the defrosting control method of described air-conditioner, always according to the parameter of described air-conditioner
Preset described air-conditioner and perform the heating operation time before described defrost action for the first time.
According to one embodiment of present invention, described default defrost Guan Wen obtains according to outdoor environment temperature.
For reaching above-mentioned purpose, a kind of air-conditioner that another aspect of the present invention embodiment proposes, including: compressor；Outdoor
Heat exchanger；The outdoor fan being correspondingly arranged with described outdoor heat exchanger；Indoor heat exchanger；Temperature detector, described temperature is examined
Survey device for detecting the Guan Wen of described outdoor heat exchanger with heating mode when described air-conditioner runs；Control mainboard, described control
Mainboard processed controls described air-conditioner for the heating operation time of the gentle described air-conditioner of the pipe according to described outdoor heat exchanger and performs
Defrost action, and when described air-conditioner performs defrost action, obtain the rotating speed of described outdoor fan, and calculate the institute of acquisition
State the rotating speed of outdoor fan and described air-conditioner with the turning of the initial speed of described outdoor fan during described heating mode initial launch
Speed difference value, and perform the heating operation before described defrost action according to the described rotating speed difference described air-conditioner of regulation next time
Time.
Air-conditioner according to embodiments of the present invention, when air-conditioner runs with heating mode, by temperature detector sensing chamber outside
The Guan Wen of heat exchanger, controls mainboard and controls air-conditioner execution according to the heating operation time of the pipe gentleness air-conditioner of outdoor heat exchanger
Defrost action, and air-conditioner perform defrost action time obtain outdoor fan rotating speed, and calculate acquisition outdoor fan turn
Speed and air-conditioner are with the rotating speed difference of the initial speed of outdoor fan during heating mode initial launch, and adjust according to rotating speed difference
Joint air-conditioner performs the heating operation time before defrost action, so that it is guaranteed that each defrost of outdoor heat exchanger all exists next time
In OK range, it is to avoid the frequent defrost of air-conditioner or the incomplete problem of defrost, improve the defrosting effect of air-conditioner, and then
Improve the heating effect of air-conditioner.
According to one embodiment of present invention, described air-conditioner is reached when described air-conditioner with the time that described heating mode runs
During the heating operation time regulated during last execution defrost action, if the Guan Wen of described outdoor heat exchanger is less than or equal to presetting
Defrost Guan Wen, the most described control mainboard control described air-conditioner perform described defrost action.
According to one embodiment of present invention, described control mainboard is by judging to regulate described sky to described rotating speed difference
Adjust device to perform the heating operation time before described defrost action, wherein, if described rotating speed difference is more than or equal to pre-next time
If speed discrepancy lower limit and less than or equal to preset speed discrepancy higher limit, described control mainboard then keep described air-conditioner next
The heating operation time before secondary execution described defrost action is constant；If described rotating speed difference is more than described default speed discrepancy
Higher limit, described control mainboard then shortens described air-conditioner and performs the heating operation time before described defrost action next time；
If described rotating speed difference is less than described default speed discrepancy lower limit, described control mainboard then extends described air-conditioner next time
Perform the heating operation time before described defrost action.
According to one embodiment of present invention, described air-conditioner performs the heating operation time before described defrost action for the first time
Parameter according to described air-conditioner is preset in described control mainboard.
According to one embodiment of present invention, described control mainboard obtains described default defrost Guan Wen according to outdoor environment temperature.
Accompanying drawing explanation
Aspect that the present invention is above-mentioned and/or additional and advantage will be apparent from from the following description of the accompanying drawings of embodiments and
Easy to understand, wherein,
Fig. 1 is the flow chart of the defrosting control method of air-conditioner according to an embodiment of the invention；
Fig. 2 is the flow chart of the defrosting control method of the air-conditioner according to one concrete example of the present invention；And
Fig. 3 is the structural representation of air-conditioner according to an embodiment of the invention.
Reference: compressor 10, outdoor heat exchanger 20, outdoor fan 30, indoor heat exchanger 40, temperature detector 50,
Control mainboard 60, cross valve 70, choke valve 80 and gas-liquid separator 90.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most identical
Or similar label represents same or similar element or has the element of same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Generally, after air-conditioner runs a period of time with heating mode, outdoor heat exchanger meeting frosting, the wind of outdoor heat exchanger
Resistance can increase, the rotating speed of outdoor fan also can change therewith (for exchange outdoor fan, its rotating speed can reduce；For
Direct current outdoor fan, its rotating speed can raise).When outdoor air relative humidity is the biggest, outdoor heat exchanger frosting quickly,
The rotation speed change of outdoor fan is the fastest；Otherwise, when outdoor air relative humidity is the least, outdoor heat exchanger frosting is very slow,
The rotation speed change of outdoor fan is the slowest.Therefore, outdoor heat exchange can be gone out with accurate response by the rotation speed change of outdoor fan
The frosting degree of device.Based on this principle, embodiments of the invention propose a kind of air-conditioner defrosting control method and
A kind of air-conditioner.
The air-conditioner and defrosting control method thereof proposed according to embodiments of the present invention is described with reference to the accompanying drawings.
Fig. 1 is the flow chart of the defrosting control method of air-conditioner according to an embodiment of the invention.As it is shown in figure 1, this sky
The defrosting control method adjusting device comprises the following steps:
S1, when air-conditioner runs with heating mode, pipe temperature T1 of outdoor heat exchanger in detection air-conditioner.
For example, it is possible to by pipe temperature T1 of temperature sensor sensing chamber external heat exchanger.
S2, controls air-conditioner according to pipe temperature T1 of outdoor heat exchanger and the heating operation time t1 of air-conditioner and performs defrost action,
And when air-conditioner performs defrost action, obtain the rotating speed N1 of outdoor fan in air-conditioner.
According to one embodiment of present invention, according to pipe temperature T1 and the heating operation time t1 control of air-conditioner of outdoor heat exchanger
Air-conditioner processed performs defrost action, including: when air-conditioner reaches air-conditioner last time execution with the time that heating mode runs
During the heating operation time t2 regulated during frost action, if pipe temperature T1 of outdoor heat exchanger is less than or equal to defrost pipe temperature T preset,
Then control air-conditioner and perform defrost action.Wherein, defrost pipe temperature T preset can obtain according to outdoor environment temperature, and root
Change according to outdoor environment temperature change.
It should be noted that in embodiments of the present invention, air-conditioner performs the heating operation time before defrost action for the first time
T1 can preset according to the parameter of air-conditioner and obtain.It is to say, air-conditioner is before performing defrost action for the first time, air-conditioning
Device with the time that heating mode runs can be air-conditioner dispatch from the factory time default time.
S3, the rotating speed N1 calculating the outdoor fan obtained turn with the initial of outdoor fan during heating mode initial launch with air-conditioner
Speed N2 rotating speed difference DELTA N, and according to rotating speed difference DELTA N regulation air-conditioner perform defrost action next time before heat fortune
Row time t.
Specifically, when air-conditioner runs with heating mode, the rotating speed of outdoor fan when record air-conditioner starts heating operation,
I.e. initial speed N2, and when air-conditioner with the time that heating mode runs reach last perform defrost action time the heating of regulation
After operation time t2 (if performing defrost action for the first time, then reach default time when dispatching from the factory), detect outdoor heat exchange
Pipe temperature T1 of device, and judge that whether pipe temperature T1 of outdoor heat exchanger is less than or equal to defrost pipe temperature T preset.If it is outdoor
Pipe temperature T1 of heat exchanger less than or equal to defrost pipe temperature T preset, then controls air-conditioner and starts to perform defrost action, and obtain
The rotating speed N1 of outdoor fan in air-conditioner.Then, the rotating speed between the rotating speed N1 and initial speed N2 of outdoor fan is calculated
Difference DELTA N=| N1-N2 |, and when regulating, according to rotating speed difference DELTA N, the heating operation that air-conditioner performs before defrost action next time
Between t, to guarantee that each defrost of outdoor heat exchanger is all in OK range, it is to avoid cause air-conditioner because the heating operation time is too short
Frequently defrost, or cause the incomplete problem of defrost because heating overlong time, thus it is effectively improved the defrosting effect of air-conditioner,
And then the heating effect of raising air-conditioner, improve Consumer's Experience.
According to one embodiment of present invention, before performing defrost action according to rotating speed difference DELTA N regulation air-conditioner next time
Heating operation time t, including: if rotating speed difference DELTA N is more than or equal to the speed discrepancy lower limit N3 preset and less than or equal to pre-
If speed discrepancy higher limit N4, then keep air-conditioner perform defrost action next time before heating operation time t constant；As
Really rotating speed difference DELTA N is more than speed discrepancy higher limit N4 preset, then shorten air-conditioner and perform the system before defrost action next time
Hot operation time t；If rotating speed difference DELTA N is less than the speed discrepancy lower limit N3 preset, then extends air-conditioner and perform next time
Heating operation time t before defrost action.Wherein, speed discrepancy lower limit N3 and speed discrepancy higher limit N4 can be according to realities
Border situation is demarcated.
Specifically, after controlling air-conditioner execution defrost action, control air-conditioner and start to perform defrost action, and record
The rotating speed N1 of outdoor fan when air-conditioner starts to perform defrost action.Then rotating speed N1 and the air-conditioning of outdoor fan are calculated
Device is with rotating speed difference DELTA N between the initial speed N2 of outdoor fan during heating mode initial launch.If N3≤Δ N≤N4,
Then illustrating that rotating speed difference DELTA N of outdoor fan is suitable, outdoor heat exchanger frosting is proper, and air-conditioner performs defrost next time
Heating operation time t before action keeps constant；If Δ N ＞ N4, then illustrate that rotating speed difference DELTA N of outdoor fan is bigger than normal,
Outdoor heat exchanger frosting is thicker, and the heating operation time t before air-conditioner performs defrost action next time is certain by shortening
Time Δ t1, is t-Δ t1；If Δ N ＜ N3, then illustrating that rotating speed difference DELTA N of outdoor fan is less than normal, outdoor heat exchanger is tied
Frost ratio is relatively thin, and the heating operation time t before air-conditioner performs defrost action next time will extend regular hour Δ t2, be
t+Δt2.Thus, it is possible to turn with the initial of outdoor fan during heating mode initial launch with air-conditioner according to the rotating speed of outdoor fan
The rotating speed difference of speed, regulation air-conditioner performs the heating operation time before defrost action next time, so that it is guaranteed that outdoor heat exchange
Each defrost of device is all in OK range so that defrost is more reasonable.
In order to make those skilled in the art more clearly understand, the present invention, Fig. 2 are the air-conditioners according to one concrete example of the present invention
The flow chart of defrosting control method.As in figure 2 it is shown, the method may comprise steps of:
S101, air-conditioner runs with heating mode.
S102, the record initial speed N2 of outdoor fan and air-conditioner heat accumulated running time.
S103, pipe temperature T1 of outdoor heat exchanger in detection air-conditioner, and compare with default defrost pipe temperature T.
S104, it may be judged whether T1≤T, if it is, perform step S105；If it does not, air-conditioner continues to transport with heating mode
OK, and perform step S103.
S105, controls air-conditioner and performs defrost action, the rotating speed N1 of outdoor fan in record air-conditioner, and according to N1 and N2
Calculate rotating speed difference DELTA N=| N1-N2 |
S106, it may be judged whether N3≤Δ N≤N4, if it is, perform step S107；If it does not, perform step S108.
S107, the heating operation time t before keeping air-conditioner next time to perform defrost action is constant.
S108, it may be judged whether Δ N ＞ N4, if it is, perform step S109；If it does not, perform step S110.
S109, air-conditioner performs the heating operation time t before defrost action next time and shortens Δ t1, is t-Δ t1.
S110, air-conditioner performs the heating operation time t before defrost action next time and extends Δ t2, is t+ Δ t2.
After defrost terminates, air-conditioner recovers heating operation, and according to step S101～the circular flow of step S109.
In sum, the defrosting control method of air-conditioner according to embodiments of the present invention, when air-conditioner runs with heating mode,
First the Guan Wen of outdoor heat exchanger in detection air-conditioner, time then according to the heating operation of the pipe gentleness air-conditioner of outdoor heat exchanger
Between control air-conditioner and perform defrost action, and when air-conditioner performs defrost action, obtain the rotating speed of outdoor fan in air-conditioner,
Finally calculate rotating speed and the air-conditioner of outdoor fan of acquisition with the turning of the initial speed of outdoor fan during heating mode initial launch
Speed difference value, and perform the heating operation time before defrost action according to rotating speed difference regulation air-conditioner next time, so that it is guaranteed that
Each defrost of outdoor heat exchanger is all in OK range, it is to avoid the frequent defrost of air-conditioner or the incomplete problem of defrost, improves
The defrosting effect of air-conditioner, and then improve the heating effect of air-conditioner.
Fig. 3 is the structural representation of air-conditioner according to an embodiment of the invention, as it is shown on figure 3, this air-conditioner includes:
Outdoor fan 30 that compressor 10, outdoor heat exchanger 20 and outdoor heat exchanger 20 are correspondingly arranged, indoor heat exchanger 40, temperature
Degree detector 50 and control mainboard 60.
Wherein, temperature detector 50 is for pipe temperature T1 of sensing chamber's external heat exchanger 20 when air-conditioner runs with heating mode.
Control mainboard 60 to hold for the heating operation time t1 control air-conditioner of pipe temperature T1 according to outdoor heat exchanger 20 and air-conditioner
Row defrost action, and the rotating speed N1 of outdoor fan 30 is obtained when air-conditioner performs defrost action, and according to the outdoor obtained
The rotating speed N1 of blower fan 30 calculates speed discrepancy with air-conditioner with the initial speed N2 of outdoor fan 30 during heating mode initial launch
Value Δ N=| N1-N2 |, and when regulating, according to rotating speed difference DELTA N, the heating operation that air-conditioner performs before defrost action next time
Between t.
According to one embodiment of present invention, air-conditioner last time execution is reached when air-conditioner with the time that heating mode runs
During the heating operation time t2 regulated during frost action, if pipe temperature T1 of outdoor heat exchanger 20 is less than or equal to the defrost pipe preset
Temperature T, then control mainboard 60 and control air-conditioner execution defrost action.Wherein, control mainboard 60 to obtain according to outdoor environment temperature
Defrost pipe temperature T that must preset.
It should be noted that in embodiments of the present invention, air-conditioner performs the heating operation time before defrost action for the first time
T1 can be preset in control mainboard 60 according to the parameter of air-conditioner.It is to say, air-conditioner performs defrost action for the first time
Before, air-conditioner with the time that heating mode runs can be air-conditioner dispatch from the factory time be preset in the acquiescence controlled in mainboard 60 time
Between.
Specifically, when air-conditioner runs with heating mode, control mainboard 60 and record outdoor when air-conditioner starts heating operation
The rotating speed of blower fan 30, i.e. initial speed N2, and perform defrost when air-conditioner reaches last with the time that heating mode runs
The heating operation time t2 (if performing defrost action for the first time, then reach default time when dispatching from the factory) of regulation during action
After, pipe temperature T1 of temperature detector 50 sensing chamber external heat exchanger 20, and judge that pipe temperature T1 of outdoor heat exchanger 20 is the least
In or equal to preset defrost pipe temperature T.If pipe temperature T1 of outdoor heat exchanger 20 is less than or equal to defrost pipe temperature T preset,
Then control mainboard 60 controls air-conditioner and starts to perform defrost action, and obtains the rotating speed N1 of outdoor fan in air-conditioner.Then,
Control mainboard 60 and calculate rotating speed difference DELTA N=| the N1-N2 | between the rotating speed N1 of outdoor fan 30 and initial speed N2, and
Perform the heating operation time t before defrost action, to guarantee outdoor heat exchange according to rotating speed difference DELTA N regulation air-conditioner next time
Each defrost of device is all in OK range, it is to avoid cause the frequent defrost of air-conditioner because the heating operation time is too short, or because of system
Hot overlong time causes the incomplete problem of defrost, thus is effectively improved the defrosting effect of air-conditioner, and then improves air-conditioner
Heating effect, improves Consumer's Experience.
According to one embodiment of present invention, mainboard 60 is controlled by judging to regulate under air-conditioner to rotating speed difference DELTA N
Once perform the heating operation time t before defrost action, wherein, if rotating speed difference DELTA N is more than or equal to the speed discrepancy preset
Lower limit N3 and less than or equal to preset speed discrepancy higher limit N4, control mainboard 60 then keep air-conditioner to perform defrost next time
Heating operation time t before action is constant；If rotating speed difference DELTA N is more than speed discrepancy higher limit N4 preset, control main
Plate 60 then shortens air-conditioner and performs the heating operation time t before defrost action next time；If rotating speed difference DELTA N is less than pre-
If speed discrepancy lower limit N3, control mainboard 60 when then extending the heating operation that air-conditioner performs before defrost action next time
Between t.Wherein, speed discrepancy lower limit N3 and speed discrepancy higher limit N4 can be preset in control mainboard 60 according to practical situation.
Wherein, speed discrepancy lower limit N3 and speed discrepancy higher limit N4 can be demarcated according to practical situation.
Specifically, after control mainboard 60 judges that air-conditioner performs defrost action, control mainboard 60 controls air-conditioner and starts
Perform defrost action, and record the rotating speed N1 of outdoor fan when air-conditioner starts to perform defrost action, then counting chamber
The rotating speed N1 of outer blower fan 30 and air-conditioner are with turning between the initial speed N2 of outdoor fan 30 during heating mode initial launch
Speed difference DELTA N, if N3≤Δ N≤N4, then rotating speed difference DELTA N of explanation outdoor fan 30 is suitable, outdoor heat exchanger 20
Frosting is proper, and control mainboard 60 then controls air-conditioner and performs the heating operation time t holding before defrost action next time
Constant；If Δ N ＞ N4, then rotating speed difference DELTA N of explanation outdoor fan 30 is bigger than normal, and outdoor heat exchanger 20 frosting is thicker,
The heating operation time t that control mainboard 60 then controls before air-conditioner performs defrost action next time will shorten certain time Δ t1,
I.e. t-Δ t1；If Δ N ＜ N3, then rotating speed difference DELTA N of explanation outdoor fan 30 is less than normal, outdoor heat exchanger 20 frosting ratio
Relatively thin, control mainboard 60 then controls the heating operation time t before air-conditioner performs defrost action next time will extend a timing
Between Δ t2, i.e. t+ Δ t2.Thus, controlling mainboard can be according to the rotating speed of outdoor fan and air-conditioner with heating mode initial launch
Time outdoor fan the rotating speed difference of initial speed, regulation air-conditioner performs the heating operation time before defrost action next time,
So that it is guaranteed that each defrost of outdoor heat exchanger is all in OK range so that defrost is more reasonable.
In sum, the air-conditioner of the embodiment of the present invention, when air-conditioner runs with heating mode, examined by temperature detector
Survey the Guan Wen of outdoor heat exchanger, control mainboard and control air-conditioning according to the heating operation time of the pipe gentleness air-conditioner of outdoor heat exchanger
Device performs defrost action, and the rotating speed of acquisition outdoor fan when air-conditioner performs defrost action, and calculates the outdoor wind of acquisition
The rotating speed of machine and air-conditioner are with the rotating speed difference of the initial speed of outdoor fan during heating mode initial launch, and according to rotating speed
Difference regulation air-conditioner performs the heating operation time before defrost action next time, so that it is guaranteed that eachization of outdoor heat exchanger
Frost is all in OK range, it is to avoid the frequent defrost of air-conditioner or the incomplete problem of defrost, improves the defrosting effect of air-conditioner,
And then improve the heating effect of air-conditioner.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ",
Orientation or the position relationship of the instruction such as " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " are based on shown in the drawings
Orientation or position relationship, be for only for ease of describe the present invention and simplify describe rather than instruction or hint indication device or
Element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or
The implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or hidden
At least one this feature is included containing ground.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", the art such as " fixing "
Language should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be machinery
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection within part or the interaction relationship of two elements, unless otherwise clear and definite restriction.Ordinary skill for this area
For personnel, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be
First and second features directly contact, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below "
Can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second
Feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term necessarily
It is directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be arbitrary
Individual or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be combined by art personnel
And combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary,
Being not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, revises, replaces and modification.
Claims (10)
1. the defrosting control method of an air-conditioner, it is characterised in that comprise the following steps:
When described air-conditioner runs with heating mode, detect the Guan Wen of outdoor heat exchanger in described air-conditioner；
The heating operation time of the gentle described air-conditioner of the pipe according to described outdoor heat exchanger controls the execution defrost of described air-conditioner and moves
Make, and obtain the rotating speed of outdoor fan in described air-conditioner when described air-conditioner performs defrost action；
The rotating speed of the described outdoor fan that calculating obtains and described air-conditioner are with outdoor wind described during described heating mode initial launch
The rotating speed difference of the initial speed of machine, and perform described defrost action according to the described rotating speed difference described air-conditioner of regulation next time
The heating operation time before.
2. the defrosting control method of air-conditioner as claimed in claim 1, it is characterised in that according to described outdoor heat exchanger
The heating operation time of the gentle described air-conditioner of pipe judges that described air-conditioner performs defrost action, including:
The regulation when described air-conditioner reaches the execution defrost action of described air-conditioner last time with the time that described heating mode runs
The heating operation time time, if the Guan Wen of described outdoor heat exchanger less than or equal to preset defrost Guan Wen, then control described sky
Device is adjusted to perform described defrost action.
3. the defrosting control method of air-conditioner as claimed in claim 1 or 2, it is characterised in that according to described rotating speed difference
Regulate described air-conditioner and perform the heating operation time before described defrost action next time, including:
If described rotating speed difference is more than or equal to the speed discrepancy lower limit preset and less than or equal to the speed discrepancy higher limit preset, then
The heating operation time before keeping described air-conditioner next time to perform described defrost action is constant；
If described rotating speed difference is more than described default speed discrepancy higher limit, then shortens described air-conditioner and perform described next time
The heating operation time before defrost action；
If described rotating speed difference is less than described default speed discrepancy lower limit, then extends described air-conditioner and perform described next time
The heating operation time before defrost action.
4. the defrosting control method of air-conditioner as claimed in claim 1, it is characterised in that always according to the ginseng of described air-conditioner
Number is preset described air-conditioner and is performed the heating operation time before described defrost action for the first time.
5. the defrosting control method of air-conditioner as claimed in claim 2, it is characterised in that described default defrost Guan Wengen
Obtain according to outdoor environment temperature.
6. an air-conditioner, it is characterised in that including:
Compressor；
Outdoor heat exchanger；
The outdoor fan being correspondingly arranged with described outdoor heat exchanger；
Indoor heat exchanger；
Temperature detector, described temperature detector for detecting described outdoor heat exchange with heating mode when described air-conditioner runs
The Guan Wen of device；
Controlling mainboard, described control mainboard is when the heating operation of the gentle described air-conditioner of the pipe according to described outdoor heat exchanger
Between control described air-conditioner perform defrost action, and described air-conditioner perform defrost action time obtain described outdoor fan turn
Speed, and calculate rotating speed and the described air-conditioner of described outdoor fan of acquisition with described outdoor during described heating mode initial launch
The rotating speed difference of the initial speed of blower fan, and perform described defrost according to the described rotating speed difference described air-conditioner of regulation next time
The heating operation time before action.
7. air-conditioner as claimed in claim 6, it is characterised in that when described air-conditioner runs with described heating mode
Between when reaching the heating operation time that described air-conditioner last time performs regulation during defrost action, if described outdoor heat exchanger
Guan Wen is less than or equal to the defrost Guan Wen preset, and the most described control mainboard controls described air-conditioner and performs described defrost action.
Air-conditioner the most as claimed in claims 6 or 7, it is characterised in that described control mainboard is by described rotating speed difference
Carry out judging regulating described air-conditioner and perform the heating operation time before described defrost action next time, wherein,
If described rotating speed difference is more than or equal to the speed discrepancy lower limit preset and less than or equal to the speed discrepancy higher limit preset, institute
State the heating operation time controlled before mainboard then keeps described air-conditioner to perform described defrost action next time constant；
If described rotating speed difference is more than described default speed discrepancy higher limit, described control mainboard then shortens under described air-conditioner
Once perform the heating operation time before described defrost action；
If described rotating speed difference is less than described default speed discrepancy lower limit, described control mainboard then extends under described air-conditioner
Once perform the heating operation time before described defrost action.
9. air-conditioner as claimed in claim 6, it is characterised in that described air-conditioner perform for the first time described defrost action it
The front heating operation time is preset in described control mainboard according to the parameter of described air-conditioner.
10. air-conditioner as claimed in claim 7, it is characterised in that described control mainboard obtains according to outdoor environment temperature
Described default defrost Guan Wen.
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| CN201610327405.5A CN105953365B (en) | 2016-05-16 | 2016-05-16 | Air conditioner and its defrosting control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202408A (en) * | 2017-06-21 | 2017-09-26 | 广东美的暖通设备有限公司 | Control method, device and the air-conditioning of rotating speed of air conditioner fan |
| CN109556234A (en) * | 2018-10-22 | 2019-04-02 | 珠海格力电器股份有限公司 | Defrosting control method, device, equipment and medium |
| 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 |
| CN112944598A (en) * | 2021-03-18 | 2021-06-11 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device and air conditioner |
| CN113847707A (en) * | 2021-08-26 | 2021-12-28 | 青岛海尔空调电子有限公司 | Air conditioner defrosting control method and device and air conditioner |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60144547A (en) * | 1983-12-29 | 1985-07-30 | Matsushita Electric Ind Co Ltd | Controller of defrosting operation of air conditioner |
| CN1073760A (en) * | 1991-12-27 | 1993-06-30 | 三星电子株式会社 | The defrosting control method of inverter-type air conditioner |
| JPH07234042A (en) * | 1994-02-23 | 1995-09-05 | Noritz Corp | Controlling device for operation of air conditioner |
| JPH11287538A (en) * | 1998-03-31 | 1999-10-19 | Sanyo Electric Co Ltd | Air-conditioner |
| KR20070077637A (en) * | 2006-01-24 | 2007-07-27 | 엘지전자 주식회사 | Controlling method for defrosting operation of airconditioner |
| CN101660808A (en) * | 2008-08-29 | 2010-03-03 | Tcl集团股份有限公司 | Air conditioner and frost removal control method thereof |
| CN102159901A (en) * | 2008-09-16 | 2011-08-17 | 松下电器产业株式会社 | Air conditioning device |
| CN103557651A (en) * | 2013-10-25 | 2014-02-05 | 周晓明 | Intelligent defrosting method for air-cooled heat pump air conditioner |
-
2016
- 2016-05-16 CN CN201610327405.5A patent/CN105953365B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60144547A (en) * | 1983-12-29 | 1985-07-30 | Matsushita Electric Ind Co Ltd | Controller of defrosting operation of air conditioner |
| CN1073760A (en) * | 1991-12-27 | 1993-06-30 | 三星电子株式会社 | The defrosting control method of inverter-type air conditioner |
| JPH07234042A (en) * | 1994-02-23 | 1995-09-05 | Noritz Corp | Controlling device for operation of air conditioner |
| JPH11287538A (en) * | 1998-03-31 | 1999-10-19 | Sanyo Electric Co Ltd | Air-conditioner |
| KR20070077637A (en) * | 2006-01-24 | 2007-07-27 | 엘지전자 주식회사 | Controlling method for defrosting operation of airconditioner |
| CN101660808A (en) * | 2008-08-29 | 2010-03-03 | Tcl集团股份有限公司 | Air conditioner and frost removal control method thereof |
| CN102159901A (en) * | 2008-09-16 | 2011-08-17 | 松下电器产业株式会社 | Air conditioning device |
| CN103557651A (en) * | 2013-10-25 | 2014-02-05 | 周晓明 | Intelligent defrosting method for air-cooled heat pump air conditioner |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202408A (en) * | 2017-06-21 | 2017-09-26 | 广东美的暖通设备有限公司 | Control method, device and the air-conditioning of rotating speed of air conditioner fan |
| CN109556234A (en) * | 2018-10-22 | 2019-04-02 | 珠海格力电器股份有限公司 | Defrosting control method, device, equipment and medium |
| 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 |
| CN112013502B (en) * | 2019-05-30 | 2022-07-29 | 广东Tcl智能暖通设备有限公司 | Defrosting method of air conditioner heat exchanger and air conditioner |
| CN112944598A (en) * | 2021-03-18 | 2021-06-11 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device and air conditioner |
| CN112944598B (en) * | 2021-03-18 | 2022-05-13 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device and air conditioner |
| CN113847707A (en) * | 2021-08-26 | 2021-12-28 | 青岛海尔空调电子有限公司 | Air conditioner defrosting control method and device and air conditioner |
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