CN106369759A - Defrosting control method, controller and air conditioner - Google Patents
Defrosting control method, controller and air conditioner Download PDFInfo
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- CN106369759A CN106369759A CN201610872268.3A CN201610872268A CN106369759A CN 106369759 A CN106369759 A CN 106369759A CN 201610872268 A CN201610872268 A CN 201610872268A CN 106369759 A CN106369759 A CN 106369759A
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
-
- 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
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a defrosting control method, a controller and an air conditioner. The method comprises the steps that whether defrosting control needs to be carried out or not at present is judged according to the current outdoor temperature TW when the air conditioner is normally started and is in a heating mode; when it is determined that defrosting control needs to be carried out at present, the air conditioner is controlled to operate in the heating mode for a corresponding preset time period according to the current outdoor temperature TW and then switched to be in a refrigeration mode for defrosting, the heating mode is recovered after defrosting is completed, and defrosting control is carried out according to a preset defrosting control strategy in the follow-up defrosting process. By means of the defrosting control method, the initial defrosting process can be completed on the premise that basic heating requirements of users can be met. Accordingly, according to the defrosting control method, the heating effect of the air conditioner is ensured, meanwhile and user experience is not affected.
Description
Technical field
The present embodiments relate to air-conditioning technical field is and in particular to a kind of defrosting control method, controller and air-conditioning.
Background technology
In the cold area such as Northern Europe and Canada, air-conditioning Main Function is by heating.Under weather, outside air-conditioning
Machine is easily covered by heavy snow, particularly condenser, easily piles up the thick snow of thick layer.If user is now started shooting using remote control
Heat, because condenser is avenged covering, heating effect can be poor, and the speed that room warms up is slow.In order to solve this problem,
Part air-conditioning producer, devises some functions, and that is, when heating start, refrigeration system horse back automatically switches to refrigeration mode, first
Snow on condenser or residual frost are melted, then switches to heating mode, but because the direct transformation of ownership of start is cold, air-conditioning will wait longer
Time just have hot blast to produce by boasting, Consumer's Experience effect is poor.
Content of the invention
For the problems of the prior art, the present invention provides a kind of defrosting control method, controller and air-conditioning, can be full
On the premise of the basic heating needs of sufficient user, complete initial defrost process, while ensureing the heating effect of air-conditioner, improve
Consumer's Experience.
For solving above-mentioned technical problem, present invention offer technical scheme below:
In a first aspect, the invention provides a kind of defrosting control method, comprising:
In air-conditioner normal boot-strap and open heating mode when, according to current outdoor temperature tw, judge currently whether need
Defrosting control to be carried out；
When determination is currently needed for carrying out defrosting control, according to current outdoor temperature twControl air-conditioner according to heating mould
Formula switches to refrigeration mode and carries out defrost after running corresponding preset time period, and recover after the completion of defrost heating mode and
Carry out defrosting control according to default defrosting control strategy during follow-up defrost.
Further, current outdoor temperature t of described basiswAir-conditioner is controlled to run according to heating mode corresponding default
Switch to refrigeration mode after time period and carry out defrost, comprising:
If b≤tw＜ a, then control air-conditioner to run according to heating mode and switch to refrigeration mode after the g1 time
Frost；
If c≤tw＜ b, then control air-conditioner to run according to heating mode and switch to refrigeration mode after the g2 time
Frost；
If d≤tw＜ c, then control air-conditioner to run according to heating mode and switch to refrigeration mode after the g3 time
Frost；
If tw＜ d, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g4 time；
Wherein, g1 ＜ g2 ＜ g3 ＜ g4.
Further, according to current outdoor temperature twWhen controlling air-conditioner to run corresponding default according to heating mode
Between in section, also control air-conditioner to carry out defrosting control according to described default defrosting control strategy.
Further, described default defrosting control strategy includes:
If tw>=n1, then control the heating tube on chassis of outdoor unit of air conditioner to be closed；
If n2≤tw＜ n1, then control described heating tube in running order, and controls described after the continuous firing m1 time
Heating tube is closed, and rejudges current outdoor temperature, and working as according to up-to-date acquisition after the m2 time of interval
Front outdoor temperature carries out defrosting control according to described default control strategy again.
Further, described default defrosting control strategy also includes:
If n3≤tw＜ n2, then control described heating tube in running order, and controls described after the continuous firing m3 time
Heating tube is closed, and rejudges current outdoor temperature, and working as according to up-to-date acquisition after the m4 time of interval
Front outdoor temperature carries out defrosting control according to described default control strategy again；Wherein m3 ＞ m1, m4 ＜ m2.
Further, described default defrosting control strategy also includes:
If tw＜ n3, then control described heating tube in running order, and controls described heating after the continuous firing m5 time
Pipe is closed, and rejudges current outdoor temperature after the m6 time of interval, and works as cup according to up-to-date acquisition
Outer temperature carries out defrosting control according to described default control strategy again；Wherein m5 ＞ m3, m6 ＜ m4.
Further, described air-conditioner normal boot-strap includes air-conditioner and goes up electricity first, or, the time with available machine time last time
Interval exceedes the manual power-on operation of preset duration, and described preset duration is more than or equal to 30min.
Second aspect, present invention also offers a kind of defrosting control device, comprising:
Judge module, in air-conditioner normal boot-strap and open heating mode when, according to current outdoor temperature tw, sentence
Disconnected current the need of carrying out defrosting control；
Control module, for when determination is currently needed for carrying out defrosting control, according to current outdoor temperature twControl empty
Adjust device to run according to heating mode to switch to refrigeration mode and carry out defrost after corresponding preset time period, and extensive after the completion of defrost
Replicate heat pattern and carry out defrosting control according to default defrosting control strategy during follow-up defrost.
Further, described control module is according to current outdoor temperature twAir-conditioner is controlled to run according to heating mode
When switching to refrigeration mode after corresponding preset time period and carrying out defrost, specifically for:
If b≤tw＜ a, then control air-conditioner to run according to heating mode and switch to refrigeration mode after the g1 time
Frost；
If c≤tw＜ b, then control air-conditioner to run according to heating mode and switch to refrigeration mode after the g2 time
Frost；
If d≤tw＜ c, then control air-conditioner to run according to heating mode and switch to refrigeration mode after the g3 time
Frost；
If tw＜ d, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g4 time；
Wherein, g1 ＜ g2 ＜ g3 ＜ g4.
Further, described control module is according to current outdoor temperature twAir-conditioner is controlled to run according to heating mode
In corresponding preset time period, it is additionally operable to control air-conditioner to carry out defrosting control according to described default defrosting control strategy.
Further, described default defrosting control strategy includes:
If tw>=n1, then control the heating tube on chassis of outdoor unit of air conditioner to be closed；
If n2≤tw＜ n1, then control described heating tube in running order, and controls described after the continuous firing m1 time
Heating tube is closed, and rejudges current outdoor temperature, and working as according to up-to-date acquisition after the m2 time of interval
Front outdoor temperature carries out defrosting control according to described default control strategy again.
Further, described default defrosting control strategy also includes:
If n3≤tw＜ n2, then control described heating tube in running order, and controls described after the continuous firing m3 time
Heating tube is closed, and rejudges current outdoor temperature, and working as according to up-to-date acquisition after the m4 time of interval
Front outdoor temperature carries out defrosting control according to described default control strategy again；Wherein m3 ＞ m1, m4 ＜ m2.
Further, described default defrosting control strategy also includes:
If tw＜ n3, then control described heating tube in running order, and controls described heating after the continuous firing m5 time
Pipe is closed, and rejudges current outdoor temperature after the m6 time of interval, and works as cup according to up-to-date acquisition
Outer temperature carries out defrosting control according to described default control strategy again；Wherein m5 ＞ m3, m6 ＜ m4.
The third aspect, present invention also offers a kind of air-conditioning, including defrosting control device as described above.
As shown from the above technical solution, defrosting control method of the present invention, in air-conditioner normal boot-strap and open system
During heat pattern, first according to current outdoor temperature tw, judge currently the need of carrying out defrosting control, be currently needed in determination
When carrying out defrosting control, first according to current outdoor temperature twAir-conditioner is controlled to run corresponding Preset Time according to heating mode
Section, allows interior first somewhat to warm up, then switches to refrigeration mode again and carry out defrost, accumulated snow on condenser or residual frostization
Fall, allow air-conditioning enter good heating effect as early as possible.Additionally, the defrosting control method that the present invention provides, also complete in refrigeration defrost
Recover heating mode after one-tenth and carry out defrosting control according to default defrosting control strategy during follow-up defrost, to ensure
The normal operation of air-conditioner.It can be seen that, the defrosting control method that the present invention provides, can be before meeting the basic heating needs of user
Put, complete initial defrost process.The defrosting control method that the present invention provides, not only can guarantee that the heating effect of air-conditioner but also had not had
Impact Consumer's Experience, thus avoid the problem as described by background section: be directly switch into refrigeration mode after powering
Carry out defrost, and then lead to user to be not felt by warm braw for a long time and make Consumer's Experience poor.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the flow chart of the defrosting control method that first embodiment of the invention provides；
Fig. 2 is the defrosting control process schematic with temperature association that second embodiment of the invention provides；
Fig. 3 is the schematic diagram of the defrosting control strategy that the 4th to the 6th embodiment of the present invention provides；
Fig. 4 is the structural representation of the defrosting control device that seventh embodiment of the invention provides.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is carried out with clear, complete description it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment being obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
For the problems of the prior art, the invention provides a kind of defrosting control method, controller and air-conditioning, the present invention
Allow air-conditioning elder generation heating operation for a period of time it is ensured that this time has certain heat to export, meet the basic heating needs of user, so
After rapidly enter defrosting state, accumulated snow on condenser or residual frost are melted, allow air-conditioning enter good heating effect as early as possible.Below
Explanation will be explained in detail to the present invention by the first to the 8th embodiment.
The flow chart that Fig. 1 shows the defrosting control method that first embodiment of the invention provides, referring to Fig. 1, the present invention
The defrosting control method of first embodiment offer comprises the steps:
Step 101: in air-conditioner normal boot-strap and open heating mode when, according to current outdoor temperature tw, judge to work as
Front the need of carrying out defrosting control.
In this step, air-conditioner normal boot-strap refers generally to air-conditioner and goes up electricity first, or, the time with available machine time last time
Interval exceedes the manual power-on operation of preset duration, and described preset duration is more than or equal to 30min.And stop for normally reaching temperature
Machine or protection are shut down, when compressor restarts general using conventional defrosting method, and do not adopt the change that the present embodiment provides
White control method.The defrosting control method that i.e. the present embodiment provides, only goes up electricity first in user or remote-controlled start-up is big for interval time
When preset duration effectively, normally reach temperature to shut down or protection shutdown, invalid when compressor restarts, in this case,
Defrost action is according to the original program performing in air-conditioner.
It is understood that needing according to current outdoor temperature twJudge currently the need of carrying out defrosting control.Than
As if current outdoor temperature tw=2 DEG C, then do not need to carry out defrosting control.And if current outdoor temperature tw=-7 DEG C, then
Need to carry out defrosting control.In other words specifically need to not need to carry out defrost have individual temperature threshold, if outdoor temperature is more than or waits
In this temperature threshold (as 2 DEG C), then not needing to carry out defrost, if being less than this temperature threshold, needing to carry out defrost.
Step 102: when determination is currently needed for carrying out defrosting control, according to current outdoor temperature twAir-conditioner is controlled to press
Carry out defrost according to switching to refrigeration mode after the heating mode corresponding preset time period of operation, and recover to heat after the completion of defrost
Pattern and carry out defrosting control according to default defrosting control strategy during follow-up defrost.
In this step, when determination is currently needed for carrying out defrosting control, first according to current outdoor temperature twControl empty
Adjust device to run corresponding preset time period according to heating mode, allow interior first somewhat to warm up, then switch to refrigeration mould again
Formula carries out defrost, and accumulated snow on condenser or residual frost are melted, and allows air-conditioning enter good heating effect as early as possible.In addition, this step
Recover heating mode and carry out defrost according to default defrosting control strategy during follow-up defrost also after the completion of defrost
Control, to ensure the normal operation of air-conditioner.Wherein, default defrosting control strategy can be some defrosting control plans existing
Slightly, the such as heating tube on heating air conditioner bottom plate of outdoor unit always, to ensure defrost effect.Can also be following 4th enforcement
Ratio more preferably defrosting control strategy described in example.It can be seen that, the defrosting control method that this step provides, user's base can met
On the premise of this heating needs, complete initial defrost process.The defrosting control method that this step provides, had both ensured the system of air-conditioner
Thermal effect does not affect Consumer's Experience again.Thus avoiding the problem as described by background section: directly cut after powering
Shift to refrigeration mode and carry out defrost, and then lead to user to be not felt by warm braw for a long time and make Consumer's Experience poor.
As seen from the above description, the present embodiment provide defrosting control method, in air-conditioner normal boot-strap and open heat
During pattern, first according to current outdoor temperature tw, judge currently the need of carrying out defrosting control, determination be currently needed for into
During row defrosting control, first according to current outdoor temperature twAir-conditioner is controlled to run corresponding Preset Time according to heating mode
Section, allows interior first somewhat to warm up, then switches to refrigeration mode again and carry out defrost, accumulated snow on condenser or residual frostization
Fall, allow air-conditioning enter good heating effect as early as possible.Additionally, the defrosting control method that the present embodiment provides, also in refrigeration defrost
After the completion of recover heating mode and carry out defrosting control according to default defrosting control strategy during follow-up defrost, to protect
The normal operation of card air-conditioner.It can be seen that, the defrosting control method that the present embodiment provides, the basic heating needs of user can met
On the premise of, complete initial defrost process.The defrosting control method that the present embodiment provides, both can guarantee that the heating effect of air-conditioner
Do not affect Consumer's Experience, thus avoiding the problem as described by background section: be directly switch into system after powering again
Chill formula carries out defrost, and then leads to user to be not felt by warm braw for a long time and make Consumer's Experience poor.
In second embodiment of the invention, give a kind of specific implementation of above-mentioned steps 102.
In the present embodiment, after air-conditioner normal boot-strap, according to current outdoor temperature twResiding temperature range, control
Air-conditioner processed first runs corresponding a period of time according to heating mode.Wherein, the length of run time depends on twResiding temperature
Degree scope.Referring to Fig. 2, specifically corresponding run time length is as follows:
If b≤tw＜ a, then control air-conditioner to run according to heating mode and switch to refrigeration mode after the g1 time
Frost, and recover heating mode after the completion of defrost and according to default defrosting control strategy during follow-up defrost
Frost controls；
If c≤tw＜ b, then control air-conditioner to run according to heating mode and switch to refrigeration mode after the g2 time
Frost, and recover heating mode after the completion of defrost and according to default defrosting control strategy during follow-up defrost
Frost controls；
If d≤tw＜ c, then control air-conditioner to run according to heating mode and switch to refrigeration mode after the g3 time
Frost, and recover heating mode after the completion of defrost and according to default defrosting control strategy during follow-up defrost
Frost controls；
If tw＜ d, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g4 time, and
Recover heating mode and carry out defrost control according to default defrosting control strategy during follow-up defrost after the completion of defrost
System；
Wherein, g1 ＜ g2 ＜ g3 ＜ g4.Usually, the span of a is 0 DEG C～3 DEG C；The value model of g1, g2, g3, g4
Enclose for 10min～60min.
For example, if -2 DEG C≤tw2 DEG C of ＜, then control air-conditioner to run according to heating mode and switch to system after g1=20min
Chill formula carries out defrost, and recovers heating mode after the completion of defrost and according to default defrost control during follow-up defrost
Strategy processed carries out defrosting control；
If -6 DEG C≤tw＜ -2 DEG C, then control air-conditioner to run according to heating mode and switch to refrigeration mould after g2=30min
Formula carries out defrost, and recovers heating mode after the completion of defrost and according to default defrosting control plan during follow-up defrost
Slightly carry out defrosting control；
If -10 DEG C≤tw＜ -6 DEG C, then control air-conditioner to run according to heating mode and switch to refrigeration mould after g3=40min
Formula carries out defrost, and recovers heating mode after the completion of defrost and according to default defrosting control plan during follow-up defrost
Slightly carry out defrosting control；
If tw＜ -10 DEG C, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out after g4=50min
Defrost, and recover heating mode after the completion of defrost and carry out according to default defrosting control strategy during follow-up defrost
Defrosting control.
It is understood that the value of above-mentioned each parameter is solely for the purpose of illustration, and does not represent each parameter and can only take
State value.
It can be seen that, present embodiments provide a kind of defrosting control method in advance with temperature linkage, allow air-conditioning elder generation heating operation
The a bit of time, it is ensured that this short time has certain heat to export, meets the basic heating needs of user, then rapidly enters and remove
White state, melts accumulated snow on condenser or residual frost, allows air-conditioning enter good heating effect as early as possible.Additionally, the present embodiment carries
For defrosting control method, also refrigeration defrost after the completion of recover heating mode and during follow-up defrost according to default
Defrosting control strategy carries out defrosting control, to ensure the normal operation of air-conditioner.Wherein, default defrosting control strategy can be
Some defrosting control strategies existing, the such as heating tube on heating air conditioner bottom plate of outdoor unit always, to ensure defrost effect.?
Can be the ratio more preferably defrosting control strategy described in following 4th embodiment.
In third embodiment of the invention, in order to improve the heating effect of air-conditioner as much as possible, just open in air-conditioner
Machine is according to current outdoor temperature twControl air-conditioner to run in corresponding preset time period according to heating mode, also control air-conditioning
Device carries out defrosting control according to described default defrosting control strategy.So, not thorough even if carrying out defrost in this short time
Bottom, but a part can be changed at least, such that it is able to somewhat improve the heating efficiency of air-conditioning.
In four embodiment of the invention, give one of the default defrosting control strategy described in the various embodiments described above
Plant preferred implementation.It is to be appreciated that the defrosting control strategy described in the present embodiment and follow-up two embodiments refers to
The defrosting control strategy being adopted after heating heating-refrigeration defrost-recovery heating mode in air-conditioner.And it is firm in air-conditioner
During start, the defrosting control method according to first or second embodiments of the present invention is needed to carry out initial defrosting operation: first to make
Heat a period of time, then it is then turned on refrigeration defrosting, after refrigeration defrosting terminates, recover heating mode.
Wherein, recovering heating mode and the present embodiment and following embodiment can adopted in follow-up heating operations
Described default defrosting control strategy carries out defrost, to realize energy-conservation and taking into account of defrosting.
Specifically, in the present embodiment, default defrosting control strategy includes:
If tw>=n1, then control the heating tube on chassis of outdoor unit of air conditioner to be closed；
If n2≤tw＜ n1, then control described heating tube in running order, and controls described after the continuous firing m1 time
Heating tube is closed, and rejudges current outdoor temperature, and working as according to up-to-date acquisition after the m2 time of interval
Front outdoor temperature carries out defrosting control according to described default control strategy again.
Here, rejudge current outdoor temperature after the m2 time of interval to refer to, reacquire after the m2 time of interval
Current outdoor temperature tw, and the current outdoor temperature t according to up-to-date acquisitionwAgain carry out according to described default control strategy
Defrosting control.
In order to ensure defrost effect as far as possible, improve the serviceability of air-conditioner it is preferable that in the present embodiment, m1 >=m2.
It is preferred here that described n1 value is 2 DEG C, described n2 value is -7 DEG C, the span of described m1 is 30～
60min, such as 30min, the span of described m2 is 15～20min, such as 15min.So i other words, in current outdoor temperature
During more than 2 DEG C, the heating tube on chassis of outdoor unit of air conditioner is controlled to be closed；It is more than -7 DEG C in current outdoor temperature
And during less than 2 DEG C, control described heating tube in running order, and after continuous firing 30min, control described heating tube to be in pass
Closed state, and rejudge current outdoor temperature after the 15min of interval, and according to the current outdoor temperature of up-to-date acquisition again
Carry out defrosting control according to described default control strategy.For example assume up-to-date acquisition current outdoor temperature be -6 DEG C, then according to
According to condition n2≤tw＜ n1 understands to control described heating tube in running order, and controls described adding after continuous firing 30min
Heat pipe is closed, and rejudges current outdoor temperature after the 15min of interval, and works as cup according to up-to-date acquisition
Outer temperature carries out defrosting control according to described default control strategy again.If the current outdoor temperature of up-to-date acquisition is 2 DEG C,
According to condition tw>=n1 understands to control the heating tube on chassis of outdoor unit of air conditioner to be closed, to save energy consumption.
As seen from the above description, defrosting control strategy provided in an embodiment of the present invention, according to current outdoor temperature twEnter
The specific defrosting control of row.For example, if tw>=n1, then control the heating tube on chassis of outdoor unit of air conditioner to be closed；
If n2≤tw＜ n1, then control described heating tube in running order, and control at described heating tube after the continuous firing m1 time
In closed mode, and rejudge current outdoor temperature, and the current outdoor temperature according to up-to-date acquisition after the m2 time of interval
Degree carries out defrosting control according to described default control strategy again.It can be seen that, defrosting control strategy provided in an embodiment of the present invention,
According to outdoor temperature, periodically open or stop electric heating tube work, to prevent chassis from freezing.The embodiment of the present invention provides
Control method, can on the premise of effective defrost, further reduce air-conditioning power consumption.
It is understood that in order to save electric energy, under air-conditioner shutdown or standby and refrigeration work pattern, electrical heating
Pipe remains off, to save electric energy.
In fifth embodiment of the invention, the defrosting control strategy that above-mentioned 4th embodiment is provided is supplemented
Perfect.
In the present embodiment, in order to meet the defrosting function of air-conditioner under various use environments, and reducing energy consumption as far as possible,
On the basis of the control mode that above-described embodiment provides, referring to Fig. 3 it is preferable that described default control strategy also includes:
If n3≤tw＜ n2, then control described heating tube in running order, and controls described after the continuous firing m3 time
Heating tube is closed, and rejudges current outdoor temperature, and working as according to up-to-date acquisition after the m4 time of interval
Front outdoor temperature carries out defrosting control, wherein m3 ＞ m1, m4 ＜ m2 according to described default control strategy again.
In the present embodiment, the span of m3 is 60～90min, and the span of m4 is 10～15min, such as m3 value
For 80min, the such as value of m4 is 12min, and n2 value is -7 DEG C, and n3 value is -25 DEG C.For example current outdoor temperature is -10
DEG C, that is, current outdoor temperature is located at [- 25 DEG C, -7 DEG C], now controls described heating tube in running order, and continuous firing
Control described heating tube to be closed after the 80min time, and rejudge current outdoor temp after the 12min time of interval
Degree, and defrosting control is again carried out according to described default control strategy according to the current outdoor temperature of up-to-date acquisition.For example false
If the current outdoor temperature of up-to-date acquisition is -8 DEG C, then according to condition n3≤tw＜ n2 understands to control described heating tube to be in work
Make state, and after the continuous firing 80min time, control described heating tube to be closed, and weight after the 12min time of interval
Newly judge current outdoor temperature, and again enter according to described default control strategy according to the current outdoor temperature of up-to-date acquisition
Row defrosting control.If the current outdoor temperature of up-to-date acquisition is -5 DEG C, according to condition n2≤twShould control described knowable to ＜ n1
Heating tube is in running order, and controls described heating tube to be closed after continuous firing 30min, and in interval 15min
Rejudge current outdoor temperature afterwards, and according to the current outdoor temperature of up-to-date acquisition again according to described default control plan
Slightly carry out defrosting control.Assume that the current outdoor temperature of up-to-date acquisition is 1 DEG C, then according to condition tw>=n1 understands to control air-conditioning
Heating tube on device bottom plate of outdoor unit is closed, to save energy consumption.It can be seen that, in the present embodiment, give various outsides
Defrosting control mode under environmental condition, to ensure air-conditioning in various external environment conditions all energy normal works, and reduces energy as far as possible
Consumption.
For meeting the defrosting function of air-conditioner under adverse circumstances further, and as far as possible reducing energy consumption it is preferable that at this
In bright 6th embodiment, also include in described default control strategy:
If tw＜ n3, then control described heating tube in running order, and controls described heating after the continuous firing m5 time
Pipe is closed, and rejudges current outdoor temperature after the m6 time of interval, and works as cup according to up-to-date acquisition
Outer temperature carries out defrosting control according to described default control strategy again；Wherein m5 ＞ m3, m6 ＜ m4.
Preferably, the span of described m5 is 90～120min, the span of such as 100min, described m6 is 5～
10min, such as 6min.
For example, current outdoor temperature is -30 DEG C, and that is, current outdoor temperature meets condition tw＜ n3, now should control institute
State heating tube in running order, and after the continuous firing 100min time, control described heating tube to be closed, and
Current outdoor temperature is rejudged after the 10min time, and according to the current outdoor temperature of up-to-date acquisition again according to described
Default control strategy carries out defrosting control, and concrete control process is similar with previous example, is no longer discussed in detail herein.
Knowable to the description of above-described embodiment, defrosting control strategy provided in an embodiment of the present invention, according to outdoor environment temperature
In situation of change, the working time of dynamic regulation heating tube and the start and stop cycle of degree, both can guarantee that the water on bottom plate of outdoor unit was timely
Discharge, it is to avoid because the defrost that draining hole plug causes is not clean, ultimately result in and the poor problem of heating effect occurs, also can simultaneously
The amount of saving energy.
Seventh embodiment of the invention additionally provides a kind of defrosting control device, and referring to Fig. 4, this defrosting control device includes: sentences
Disconnected module 41 and control module 42, wherein:
Judge module 41, in air-conditioner normal boot-strap and open heating mode when, according to current outdoor temperature tw,
Judge currently the need of carrying out defrosting control；
Control module 42, for when determination is currently needed for carrying out defrosting control, according to current outdoor temperature twControl
Air-conditioner runs according to heating mode and switches to refrigeration mode and carry out defrost after corresponding preset time period, and after the completion of defrost
Recover heating mode and carry out defrosting control according to default defrosting control strategy during follow-up defrost.
Further, described control module 42 is according to current outdoor temperature twAir-conditioner is controlled to transport according to heating mode
When switching to refrigeration mode and carry out defrost after the corresponding preset time period of row, specifically for:
If b≤tw＜ a, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after g1min；
If c≤tw＜ b, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after g2min；
If d≤tw＜ c, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after g3min；
If tw＜ d, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after g4min；
Wherein, g1 ＜ g2 ＜ g3 ＜ g4.
Further, described control module 42 is according to current outdoor temperature twAir-conditioner is controlled to transport according to heating mode
In the corresponding preset time period of row, it is additionally operable to control air-conditioner to carry out defrosting control according to described default defrosting control strategy.
Further, described default defrosting control strategy includes:
If tw>=n1, then control the heating tube on chassis of outdoor unit of air conditioner to be closed；
If n2≤tw＜ n1, then control described heating tube in running order, and controls described after the continuous firing m1 time
Heating tube is closed, and rejudges current outdoor temperature, and working as according to up-to-date acquisition after the m2 time of interval
Front outdoor temperature carries out defrosting control according to described default control strategy again.
Further, described default defrosting control strategy also includes:
If n3≤tw＜ n2, then control described heating tube in running order, and controls described after the continuous firing m3 time
Heating tube is closed, and rejudges current outdoor temperature, and working as according to up-to-date acquisition after the m4 time of interval
Front outdoor temperature carries out defrosting control according to described default control strategy again；Wherein m3 ＞ m1, m4 ＜ m2.
Further, described default defrosting control strategy also includes:
If tw＜ n3, then control described heating tube in running order, and controls described heating after the continuous firing m5 time
Pipe is closed, and rejudges current outdoor temperature after the m6 time of interval, and works as cup according to up-to-date acquisition
Outer temperature carries out defrosting control according to described default control strategy again；Wherein m5 ＞ m3, m6 ＜ m4.
Defrosting control device described in the present embodiment, can be used for executing the defrosting control method described in the various embodiments described above,
Its principle is similar with technique effect, no longer describes in detail herein.
Based on same inventive concept, eighth embodiment of the invention provides a kind of air-conditioning, and this air-conditioning is included as above
Defrosting control device described in embodiment.This air-conditioning is due to including above-mentioned defrosting control device, thus can solve same technology
Problem, and obtain identical technique effect.
In describing the invention, it should be noted that term " on ", the orientation of instruction such as D score or position relationship be base
In orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or imply
The device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The restriction of invention.Unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, example
As being to be fixedly connected or be detachably connected, or be integrally connected；Can be to be mechanically connected or be electrically connected
Connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For this
For the those of ordinary skill in field, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Also, it should be noted herein, such as first and second or the like relational terms are used merely to one
Entity or operation are made a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
There is any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant are intended to contain
Comprising of lid nonexcludability, wants so that including a series of process of key elements, method, article or equipment and not only including those
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element that limited by sentence "including a ..." it is not excluded that
Also there is other identical element including in the process of described key element, method, article or equipment.
Above example is merely to illustrate technical scheme, is not intended to limit；Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or carries out equivalent to wherein some technical characteristics；And these are changed or replace
Change, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (14)
1. a kind of defrosting control method is it is characterised in that include:
In air-conditioner normal boot-strap and open heating mode when, according to current outdoor temperature tw, judge currently the need of carrying out
Defrosting control；
When determination is currently needed for carrying out defrosting control, according to current outdoor temperature twAir-conditioner is controlled to transport according to heating mode
Switch to refrigeration mode after the corresponding preset time period of row and carry out defrost, and recover heating mode after the completion of defrost and follow-up
Defrost during carry out defrosting control according to default defrosting control strategy.
2. method according to claim 1 is it is characterised in that current outdoor temperature t of described basiswAir-conditioner is controlled to press
Carry out defrost according to switching to refrigeration mode after the heating mode corresponding preset time period of operation, comprising:
If b≤tw＜ a, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g1 time；
If c≤tw＜ b, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g2 time；
If d≤tw＜ c, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g3 time；
If tw＜ d, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g4 time；
Wherein, g1 ＜ g2 ＜ g3 ＜ g4.
3. method according to claim 1 is it is characterised in that according to current outdoor temperature twControl air-conditioner according to
Heating mode runs in corresponding preset time period, also controls air-conditioner to carry out defrost according to described default defrosting control strategy
Control.
4. the method according to any one of claims 1 to 3 is it is characterised in that described default defrosting control strategy includes:
If tw>=n1, then control the heating tube on chassis of outdoor unit of air conditioner to be closed；
If n2≤tw＜ n1, then control described heating tube in running order, and controls described heating tube after the continuous firing m1 time
It is closed, and rejudge current outdoor temperature, and the current outdoor according to up-to-date acquisition after the m2 time of interval
Temperature carries out defrosting control according to described default control strategy again.
5. method according to claim 4 is it is characterised in that described default defrosting control strategy also includes:
If n3≤tw＜ n2, then control described heating tube in running order, and controls described heating tube after the continuous firing m3 time
It is closed, and rejudge current outdoor temperature, and the current outdoor according to up-to-date acquisition after the m4 time of interval
Temperature carries out defrosting control according to described default control strategy again；Wherein m3 ＞ m1, m4 ＜ m2.
6. method according to claim 5 is it is characterised in that described default defrosting control strategy also includes:
If tw＜ n3, then control described heating tube in running order, and controls described heating tube to be in after the continuous firing m5 time
Closed mode, and rejudge current outdoor temperature, and the current outdoor temperature according to up-to-date acquisition after the m6 time of interval
Again carry out defrosting control according to described default control strategy；Wherein m5 ＞ m3, m6 ＜ m4.
7. the method according to any one of claims 1 to 3 is it is characterised in that described air-conditioner normal boot-strap includes air-conditioning
Electricity gone up first by device, or, exceed the manual power-on operation of preset duration, described preset duration with the time interval of available machine time last time
More than or equal to 30min.
8. a kind of defrosting control device is it is characterised in that include:
Judge module, in air-conditioner normal boot-strap and open heating mode when, according to current outdoor temperature tw, judge to work as
Front the need of carrying out defrosting control；
Control module, for when determination is currently needed for carrying out defrosting control, according to current outdoor temperature twAir-conditioner is controlled to press
Carry out defrost according to switching to refrigeration mode after the heating mode corresponding preset time period of operation, and recover to heat after the completion of defrost
Pattern and carry out defrosting control according to default defrosting control strategy during follow-up defrost.
9. defrosting control device according to claim 8 is it is characterised in that described control module is according to current outdoor temp
Degree twAir-conditioner is controlled to run when switching to refrigeration mode and carry out defrost after corresponding preset time period according to heating mode, specifically
For:
If b≤tw＜ a, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g1 time；
If c≤tw＜ b, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g2 time；
If d≤tw＜ c, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g3 time；
If tw＜ d, then control air-conditioner to run according to heating mode and switch to refrigeration mode and carry out defrost after the g4 time；
Wherein, g1 ＜ g2 ＜ g3 ＜ g4.
10. defrosting control device according to claim 8 is it is characterised in that described control module is according to current outdoor
Temperature twControl air-conditioner to run in corresponding preset time period according to heating mode, be additionally operable to control air-conditioner according to described pre-
If defrosting control strategy carry out defrosting control.
Defrosting control device described in 11. according to Claim 8～10 any one is it is characterised in that described default defrosting control
Strategy includes:
If tw>=n1, then control the heating tube on chassis of outdoor unit of air conditioner to be closed；
If n2≤tw＜ n1, then control described heating tube in running order, and controls described heating tube after the continuous firing m1 time
It is closed, and rejudge current outdoor temperature, and the current outdoor according to up-to-date acquisition after the m2 time of interval
Temperature carries out defrosting control according to described default control strategy again.
12. defrosting control devices according to claim 11 are it is characterised in that described default defrosting control strategy also wraps
Include:
If n3≤tw＜ n2, then control described heating tube in running order, and controls described heating tube after the continuous firing m3 time
It is closed, and rejudge current outdoor temperature, and the current outdoor according to up-to-date acquisition after the m4 time of interval
Temperature carries out defrosting control according to described default control strategy again；Wherein m3 ＞ m1, m4 ＜ m2.
13. defrosting control devices according to claim 12 are it is characterised in that described default defrosting control strategy also wraps
Include:
If tw＜ n3, then control described heating tube in running order, and controls described heating tube to be in after the continuous firing m5 time
Closed mode, and rejudge current outdoor temperature, and the current outdoor temperature according to up-to-date acquisition after the m6 time of interval
Again carry out defrosting control according to described default control strategy；Wherein m5 ＞ m3, m6 ＜ m4.
A kind of 14. air-conditionings are it is characterised in that include the defrosting control device as described in any one of claim 8～13.
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| CN107166688A (en) * | 2017-07-10 | 2017-09-15 | 广东美的暖通设备有限公司 | Control method, control device and the air conditioner of air conditioner |
| CN109059191A (en) * | 2018-06-15 | 2018-12-21 | 广东美的暖通设备有限公司 | Defrosting control method, temperature control equipment and computer readable storage medium |
| CN109631234A (en) * | 2018-11-15 | 2019-04-16 | 青岛海尔空调电子有限公司 | A kind of air-conditioner outdoor unit heating defrosting control method and system |
| CN109682018A (en) * | 2018-12-27 | 2019-04-26 | 广东美的暖通设备有限公司 | The control method of heating system, the control device of heating system and air conditioner |
| CN109751714A (en) * | 2019-02-02 | 2019-05-14 | 珠海格力电器股份有限公司 | air conditioner defrosting control method and air conditioner |
| US11788758B2 (en) | 2018-12-27 | 2023-10-17 | Hefei Midea Heating & Ventilating Equipment Co., Ltd. | Air conditioner, and control method and device for heating system thereof |
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| CN106369759B (en) | 2019-11-01 |
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