CN108444048A - Air conditioner defrosting control method - Google Patents
Air conditioner defrosting control method Download PDFInfo
- Publication number
- CN108444048A CN108444048A CN201810152016.2A CN201810152016A CN108444048A CN 108444048 A CN108444048 A CN 108444048A CN 201810152016 A CN201810152016 A CN 201810152016A CN 108444048 A CN108444048 A CN 108444048A
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- CN
- China
- Prior art keywords
- air conditioner
- defrosting
- control method
- value
- outdoor fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to air conditioner technical fields, and in particular to a kind of air conditioner defrosting control method.In order to more accurately judge that the opportunity into defrosting, defrosting control method proposed by the present invention include the following steps：In the case of air conditioner is in heating condition, the current average of an outdoor fan is obtained every preset time；Calculate the attenuation degree of the adjacent current average twice of the outdoor fan；According to the attenuation degree judge whether that air conditioner is made to enter defrosting mode.The attenuation degree that the present invention passes through the calculating adjacent current average twice of outdoor fan, it can accurately reflect outdoor coil pipe used frosting degree according to the attenuation degree, to more accurately select defrosting opportunity, and it effectively eliminates and limitation when frosting degree is judged using outdoor coil temperature in the prior art, the defrosting number of air conditioner is reduced, user experience is promoted.
Description
Technical field
The invention belongs to air conditioner technical fields, and in particular to a kind of air conditioner defrosting control method.
Background technology
Air conditioner as a kind of equipment that can adjust indoor environment temperature, its working principle is that：It is being followed by refrigerant
Between endless tube road by the state of high voltage/low voltage/gaseous state/liquid convert make indoor environment temperature reduce or increase, i.e., from
From the perspective of indoor unit, air conditioner is in refrigeration or heating condition.When air conditioner heat-production is run, in certain humidity item
If outdoor coil temperature is too low to lead to frosting situation under part, and the frosting of outdoor unit coil pipe can lead to the heat exchange of outdoor heat exchanger
Efficiency reduces, and influences the heating effect of air conditioner, reduces the comfort of indoor environment, influence user experience.Therefore, in air conditioner
In the case of heating condition, need that outdoor unit of the air conditioner coil pipe effectively defrost in time.
Existing technical solution is typically that the degree of outdoor coil pipe used frosting is judged by humidity and outdoor coil temperature, then
It is operated according to corresponding defrosting is carried out the case where outdoor coil pipe used frosting.But it is this judge frosting mode require it is outdoor coil pipe used
The accuracy of sensor is very high, and just more accurate well in outdoor heat exchanger shunting, once outdoor heat exchanger
Shunt it is bad, outdoor coil pipe used sensor be then unable to judge accurately the roads Chu Mei shunting evaporating temperature (outdoor coil pipe used sensor is only
It may determine that the evaporating temperature shunted all the way).In this case, it is easy to happen following scenario described：It is outdoor coil pipe used actually
There is the case where frosting, but outdoor coil pipe used temperature is higher, to can not accurately control defrosting, causes to have frost not
Change or the sordid situation of defrost.In consideration of it, suitable defrosting opportunity is selected to seem most important.
Therefore, the present invention proposes a kind of new defrosting control method.
Invention content
In order to solve the above problem in the prior art, in order to more accurately judge the opportunity into defrosting, the present invention
A kind of air conditioner defrosting control method is proposed, which includes the following steps：It is in heating condition in air conditioner
In the case of, obtain the current average of an outdoor fan every preset time；Calculate the outdoor fan it is adjacent twice
The attenuation degree of current average；According to the attenuation degree judge whether that air conditioner is made to enter defrosting mode.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " calculate the outdoor fan it is adjacent twice
The step of attenuation degree of current average " includes：Average current value and outdoor fan of the acquisition outdoor fan in present period
In the average current value of a upper period；Calculated the average current value of the average current value and a upper period of the present period
Ratio.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " judge whether to make according to the attenuation degree
Air conditioner enters defrosting mode " the step of include：If the average current value of the present period is flat with the upper period
The ratio of equal current value is less than the first preset value, then the air conditioner is made to enter defrosting mode；If the present period is flat
Equal current value and the ratio of the average current value of a upper period are not less than the first preset value, then the air conditioner maintenance is made to work as
Preceding heating condition, does not enter defrosting mode.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, first preset value be 0.85-0.95 it
Between arbitrary value.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, first preset value is 0.9.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, the preset time appointing between 5s-15s
Meaning value.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, the defrosting control method, which further includes judgement, is
No the step of exiting defrosting mode, the step include：After the air conditioner enters defrosting mode, the flat of present period is calculated
The ratio of equal current value and the average current value of a upper period；Judged whether that air conditioner is made to exit defrosting mould according to result of calculation
Formula.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " judged whether to make air-conditioning according to result of calculation
Device exits defrosting mode " the step of include：If the ratio of the average current value of present period and the average current value of a upper period
Value is more than or equal to the second preset value, then exits defrosting mode；Otherwise, the air conditioner is made to maintain current defrosting operating condition.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, second preset value appointing between 1-2
Meaning value.
The present invention according to the attenuation degree of the adjacent current average twice of outdoor fan to determine whether make air conditioner into
Enter defrosting mode.Since corresponding variation can occur with outdoor coil pipe used frosting degree for the size of current of outdoor fan, and it is outdoor
(current average of outdoor fan can more accurately reflect that the electric current of outdoor fan becomes to the adjacent current average twice of wind turbine
Change) attenuation degree can accurately reflect outdoor fan size of current situation of change, therefore it is adjacent according to outdoor fan
The attenuation degree of current average twice can more accurately reflect outdoor coil pipe used frosting degree, to which more accurately selection removes
White opportunity, and effectively eliminate and limitation when frosting degree is judged using outdoor coil temperature in the prior art, it reduces
The defrosting number of air conditioner promotes user experience.
Description of the drawings
Fig. 1 is the broad flow diagram of the air conditioner defrosting control method of the present invention；
Fig. 2 is the detail flowchart of the air conditioner defrosting control method of the present invention.
Specific implementation mode
To keep the embodiment of the present invention, technical solution and advantage more obvious, below in conjunction with attached drawing to the skill of the present invention
Art scheme is clearly and completely described, it is clear that and the embodiment described is a part of the embodiment of the present invention, rather than all
Embodiment.It will be apparent to a skilled person that these embodiments are used only for explaining the technical principle of the present invention, and
It is not intended to be limiting protection scope of the present invention.For example, although the method for the present invention is described in the application according to particular order
Each step, but these are not sequentially restrictive, under the premise of without departing from the basic principle of the present invention, this field skill
Art personnel can execute the step in a different order.
The prior art mainly judges outdoor coil pipe used frosting degree by outdoor coil temperature, but such as background technology
Described, this mode is easy to be influenced by factors such as shunting and sensor accuracies so that is sentenced using outdoor coil temperature
With certain limitation when disconnected frosting degree.Air conditioner defrosting control method proposed by the present invention is intended to eliminate using outdoor disk
Tube temperature degree judges limitation when frosting degree, and more accurately judges the opportunity for entering defrosting.
Referring to Fig.1, Fig. 1 is the broad flow diagram of the air conditioner defrosting control method of the present invention.As shown in Figure 1, of the invention
Defrosting control method include the following steps：S110, in the case of air conditioner is in heating condition, every preset time obtain
The current average of outdoor fan；S120, calculate the outdoor fan adjacent current average twice attenuation degree；
S130, judged whether that air conditioner is made to enter defrosting mode according to attenuation degree.
As outdoor coil pipe used frosting degree is increasing, windage is caused to gradually increase, into the air quantity meeting of outdoor fan
It correspondingly reduces, when windage increases, the load of outdoor fan correspondingly increases, and the electric current of outdoor fan reduces therewith.Change speech
It, load of the outdoor fan under certain rotating speed is to determine, if the load of motor increases under same rotational speed, electric current reduces,
Then illustrate that the intake of outdoor fan reduces, outdoor coil pipe used frosting degree increases.It can be seen that the size of current of outdoor fan
Corresponding variation can occur with outdoor coil pipe used frosting degree.Therefore, using the electric current of outdoor fan with outdoor coil pipe used frosting
The variation of degree and changed rule, the frosting degree to judge outdoor coil pipe used can be eliminated effectively adopts in the prior art
Limitation when frosting degree is judged with outdoor coil temperature, to more accurately judge that air conditioner enters the opportunity of defrosting.
In the defrosting control method of above-mentioned air conditioner, the present invention is using the electric current of outdoor fan with outdoor coil pipe used frosting
Degree and the rule changed, according to the adjacent current average twice of outdoor fan, (current average of outdoor fan can be more
Accurately reflect the curent change of outdoor fan) attenuation degree can accurately judge the variation feelings of outdoor fan electric current
Condition, and then judge outdoor coil pipe used frosting degree, it is possible thereby to it is accurately judged to the proper moment that air conditioner enters defrosting, from
And it can greatly promote the defrosting effect of air conditioner on the basis of reducing defrosting number.Above-mentioned steps are made into one below
Step is described in detail
In above-mentioned steps S110, preset time can be 5s, 10s, 15s, or the random time between 5s-15s,
In addition, those skilled in the art can also select other suitable preset times according to actual application scenarios, these do not take off
From protection scope of the present invention.Any of means may be used to detect, herein no longer in the current average of outdoor fan
It is described in detail.
In above-mentioned steps S120, as an example, the decaying of the adjacent current average twice of outdoor fan is calculated
The mode of degree can be：Obtain outdoor fan present period average current value with outdoor fan being averaged in a upper period
Current value；Calculated the ratio of the average current value of present period and the average current value of a upper period.That is, with the two
Ratio indicates the attenuation degree of the adjacent current average twice of outdoor fan.
In above-mentioned steps S130, as an example, judged whether that air conditioner is made to enter defrosting mould according to attenuation degree
The step of formula, specifically includes：If the average current value of present period and the ratio of the average current value of a upper period are less than first
Preset value then makes air conditioner enter defrosting mode；If the average current value of the average current value of present period and a upper period
Ratio be not less than the first preset value, then so that air conditioner is maintained current heating condition, do not enter defrosting mode.Wherein, first is pre-
If value can be the arbitrary value between 0.85-0.95.
In order to illustrate more clearly of the defrosting control method of the present invention, come with reference to a specific embodiment detailed
Illustrate the defrosting control method of the present invention.
With reference to Fig. 2, Fig. 2 is the detail flowchart as the air conditioner defrosting control method of the exemplary present invention.Such as Fig. 2 institutes
Show, in the case of air conditioner heat-production is run, step S210 is first carried out, the electric current that detects an outdoor fan every 10s it is flat
Mean value In.Subsequently into step S220, the attenuation degree for the adjacent current average twice for calculating outdoor fan：In/In-1.Its
In, InIt is outdoor fan in the current average of present period, In-1It was electric current of the outdoor fan in a upper period for present period
Average value.Subsequently into step S230, judge In/In-1Value whether be less than 0.9 (the first preset value).If In/In-1＜ 0.9,
It then enters step S240, air conditioner is made to run defrosting mode；If In/In-1>=0.9, then it enters step S250, air conditioner is made to tie up
Hold current heating condition.
It should be noted that the first preset value among the above is illustrated using 0.9 as example, those skilled in the art
The arbitrary value that can also be set the first preset value between 0.85-0.95, or other arbitrary rational values, these do not take off
From protection scope of the present invention.
In this embodiment, air conditioner defrosting control method further includes the steps that exiting defrosting mode.For example, continue
With reference to Fig. 2, after air conditioner enters defrosting mode, executes step S260, calculates In/In-1Value, and whether judge the ratio
More than or equal to 1.5 (the second preset values).If In/In-1>=1.5, illustrate that the current value of outdoor fan at this time is no longer decayed, on the contrary
The current value of outdoor fan is gradually increasing, and illustrates that the frost on outdoor coil pipe used has been removed, enters step S270 at this time, empty
Device is adjusted to exit defrosting mode.Otherwise, illustrate that the frost on outdoor coil pipe used is removed totally not yet, continue to run with defrosting mould at this time
Formula.
It will be readily appreciated by those skilled in the art that during defrosting, the current value of outdoor fan can gradually increase, i.e.,
The attenuation degree of the adjacent current average twice of outdoor fan continuously decreases, when the electric current of the present period of outdoor fan is average
Be worth and no longer decay (be in increase trend) relative to the current average of a upper period, then illustrate on outdoor coil pipe used it is white by except
It goes, and during atual detection, as long as In/In-1Ratio be more than or equal to 1.5, you can judge outdoor fan current value increase
It is added to state when outdoor coil pipe used non-frosting, can select to exit defrosting mode at this time.In addition to this, those skilled in the art go back
It can be required according to actual defrosting, reasonably set the second preset value, such as that the second preset value can be between 1-2 is arbitrary
Value.
In conclusion the present invention according to the attenuation degree of the adjacent current average twice of outdoor fan to determine whether making
Air conditioner enters defrosting mode.Since corresponding become can occur with outdoor coil pipe used frosting degree for the size of current of outdoor fan
Change, and (current average of outdoor fan can more accurately reflect outdoor wind to the adjacent current average twice of outdoor fan
The curent change of machine) attenuation degree can accurately reflect outdoor fan size of current situation of change, therefore outdoor wind
The attenuation degree of the adjacent current average twice of machine can more accurately reflect outdoor coil pipe used frosting degree, to more accurately
Defrosting opportunity is selected, and effectively eliminates and limitation when frosting degree is judged using outdoor coil temperature in the prior art
Property, the defrosting number of air conditioner is reduced, user experience is promoted.
So far, it has been combined preferred embodiment shown in the drawings and describes technical scheme of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific implementation modes.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make the relevant technologies feature equivalent change or replacement, these
Technical solution after change or replacement is fallen within protection scope of the present invention.
Claims (9)
1. a kind of air conditioner defrosting control method, which is characterized in that the defrosting control method includes the following steps：
In the case of air conditioner is in heating condition, the current average of an outdoor fan is obtained every preset time；
Calculate the attenuation degree of the adjacent current average twice of the outdoor fan；
According to the attenuation degree judge whether that air conditioner is made to enter defrosting mode.
2. air conditioner defrosting control method according to claim 2, which is characterized in that " calculate the phase of the outdoor fan
The step of attenuation degree of adjacent current average twice " includes：
Obtain outdoor fan present period average current value and outdoor fan a upper period average current value；
Calculated the ratio of the average current value of the present period and the average current value of a upper period.
3. air conditioner defrosting control method according to claim 2, which is characterized in that " judged according to the attenuation degree
Whether air conditioner is made to enter defrosting mode " the step of include：
If it is default that the ratio of the average current value of the present period and the average current value of a upper period is less than first
Value, then make the air conditioner enter defrosting mode；
If the average current value of the present period and the ratio of the average current value of a upper period are pre- not less than first
If value then makes the air conditioner maintain current heating condition, does not enter defrosting mode.
4. air conditioner defrosting control method according to claim 3, which is characterized in that first preset value is 0.85-
Arbitrary value between 0.95.
5. air conditioner defrosting control method according to claim 4, which is characterized in that first preset value is 0.9.
6. air conditioner defrosting control method according to any one of claim 1 to 5, which is characterized in that when described default
Between arbitrary value between 5s-15s.
7. air conditioner defrosting control method according to claim 6, which is characterized in that the defrosting control method further includes
The step of judging whether to exit defrosting mode, the step include：
After the air conditioner enters defrosting mode, the average current of the average current value and a upper period of present period was calculated
The ratio of value；
Judged whether that air conditioner is made to exit defrosting mode according to result of calculation.
8. air conditioner defrosting control method according to claim 7, which is characterized in that " judged whether according to result of calculation
So that air conditioner is exited defrosting mode " the step of include：
If the average current value of present period and the ratio of the average current value of a upper period are more than or equal to the second preset value,
Exit defrosting mode；Otherwise, the air conditioner is made to maintain current defrosting operating condition.
9. air conditioner defrosting control method according to claim 8, which is characterized in that second preset value be 1-2 it
Between arbitrary value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152016.2A CN108444048A (en) | 2018-02-14 | 2018-02-14 | Air conditioner defrosting control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152016.2A CN108444048A (en) | 2018-02-14 | 2018-02-14 | Air conditioner defrosting control method |
Publications (1)
| Publication Number | Publication Date |
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| CN108444048A true CN108444048A (en) | 2018-08-24 |
Family
ID=63192442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810152016.2A Pending CN108444048A (en) | 2018-02-14 | 2018-02-14 | Air conditioner defrosting control method |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567098A (en) * | 2019-09-23 | 2019-12-13 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device, air conditioner and storage medium |
| CN110848886A (en) * | 2019-11-28 | 2020-02-28 | 广东美的制冷设备有限公司 | Air conditioner, defrosting method thereof and computer readable storage medium |
| CN111854058A (en) * | 2020-05-29 | 2020-10-30 | 青岛海尔空调电子有限公司 | Air conditioning unit and defrosting control method thereof |
| CN113124544A (en) * | 2021-04-20 | 2021-07-16 | 青岛海尔空调电子有限公司 | Air conditioning unit and defrosting control method thereof |
Citations (4)
| 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 |
| CN103557651A (en) * | 2013-10-25 | 2014-02-05 | 周晓明 | Intelligent defrosting method for air-cooled heat pump air conditioner |
| CN107228451A (en) * | 2017-05-17 | 2017-10-03 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107300240A (en) * | 2017-05-17 | 2017-10-27 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
-
2018
- 2018-02-14 CN CN201810152016.2A patent/CN108444048A/en active Pending
Patent Citations (4)
| 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 |
| CN103557651A (en) * | 2013-10-25 | 2014-02-05 | 周晓明 | Intelligent defrosting method for air-cooled heat pump air conditioner |
| CN107228451A (en) * | 2017-05-17 | 2017-10-03 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN107300240A (en) * | 2017-05-17 | 2017-10-27 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567098A (en) * | 2019-09-23 | 2019-12-13 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device, air conditioner and storage medium |
| CN110848886A (en) * | 2019-11-28 | 2020-02-28 | 广东美的制冷设备有限公司 | Air conditioner, defrosting method thereof and computer readable storage medium |
| CN111854058A (en) * | 2020-05-29 | 2020-10-30 | 青岛海尔空调电子有限公司 | Air conditioning unit and defrosting control method thereof |
| CN113124544A (en) * | 2021-04-20 | 2021-07-16 | 青岛海尔空调电子有限公司 | Air conditioning unit and defrosting control method thereof |
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