CN108444134A - Air conditioner defrosting control method - Google Patents
Air conditioner defrosting control method Download PDFInfo
- Publication number
- CN108444134A CN108444134A CN201810152025.1A CN201810152025A CN108444134A CN 108444134 A CN108444134 A CN 108444134A CN 201810152025 A CN201810152025 A CN 201810152025A CN 108444134 A CN108444134 A CN 108444134A
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- China
- Prior art keywords
- current value
- air conditioner
- defrosting
- outdoor fan
- control method
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/15—Power, e.g. by voltage or current
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (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, air conditioner defrosting control method proposed by the present invention include the following steps：In the case of air conditioner is in heating condition, the real-time current value of outdoor fan is detected；Compare the real-time current value of outdoor fan and selected standard current value；Judged whether that air conditioner is made to enter defrosting mode according to comparison result；Wherein, the standard current value is the current value of the outdoor fan that is measured in the state of outdoor unit non-frosting under different rotating speeds.The present invention can more accurately reflect outdoor coil pipe used frosting degree by comparing the real-time current value of outdoor fan with selected standard current value, 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 outdoor coil pipe used frosting can cause the heat exchange of outdoor heat exchanger to be imitated
Rate reduces, and influences the heating effect of air conditioner, reduces the comfort of indoor environment, influence user experience.Therefore, at air conditioner
In the case of heating condition, the outdoor coil pipe used progress to air conditioner is needed effectively to 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, detect the real-time current value of outdoor fan；Compare the real-time current value of outdoor fan and selected standard current value；
Judged whether that air conditioner is made to enter defrosting mode according to comparison result；Wherein, the standard current value is in the non-frosting of outdoor unit
In the state of the current value of the outdoor fan that measures under different rotating speeds.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, the selected standard current value is the room
Standard current value of the outer wind turbine under current rotating speed.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " compare the real-time current value of outdoor fan with
The step of selected standard current value " includes：Calculate the real-time current value of the outdoor fan and selected standard current value
Ratio.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " judged whether to make air-conditioning according to comparison result
Device enters defrosting mode " the step of specifically include：If the real-time current value of the outdoor fan and selected standard current value
Ratio be less than the first preset value, then so that the air conditioner is entered defrosting mode；If the real-time current value of the outdoor fan
Be not less than the first preset value with the ratio of selected standard current value, then the air conditioner made to maintain current heating condition, not into
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, 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, compare the reality of outdoor fan
When current value and selected standard current value；Judged whether that air conditioner is made to exit defrosting mode according to comparison result.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " judged whether to make air-conditioning according to comparison result
Device exits defrosting mode " the step of specifically include：If the real-time current value of the outdoor fan and selected standard current value
It is equal, then exit defrosting mode；Otherwise, the air conditioner is made to maintain defrosting operating condition.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " the air conditioner enter defrosting mode it
Afterwards, compare the real-time current value of outdoor fan and selected standard current value " the step of include：Calculate working as the outdoor fan
The ratio of preceding current value and selected standard current value.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, " judged whether to make air-conditioning according to comparison result
Device exits defrosting mode " the step of include：If the ratio of the real-time current value of the outdoor fan and selected standard current value
Value is more than or equal to the second preset value, then exits defrosting mode；Otherwise, the air conditioner is made to maintain defrosting operating condition.
In the preferred embodiment of above-mentioned air conditioner defrosting control method, second preset value is between 0.95-1
Arbitrary value.
The present invention is by comparing the real-time current value of outdoor fan with selected standard current value to determine whether making air-conditioning
Device enters defrosting mode.Since corresponding variation can occur with outdoor coil pipe used frosting degree for the size of current of outdoor fan, and
Selected standard current value is the current value of the outdoor fan measured in the state of outdoor unit non-frosting, by comparing outdoor wind
The real-time current value of machine can accurately reflect the situation of change of the size of current of outdoor fan with selected standard current value, because
This, can more accurately reflect outdoor coil pipe used knot by comparing the real-time current value and selected standard current value of outdoor fan
Frost amount to more accurately select defrosting opportunity, and is effectively eliminated and is judged in the prior art using outdoor coil temperature
Limitation when frosting degree 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, detect the reality of outdoor fan
When current value；S120, the real-time current value for comparing outdoor fan and selected standard current value；S130, sentenced according to comparison result
It is disconnected whether air conditioner to be made to enter defrosting mode.Wherein, which is the room measured in the state of outdoor unit non-frosting
Current value of the outer wind turbine under different rotating speeds.
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, by the way that the real-time current value of outdoor fan is compared with selected standard current value, Ke Yizhi
It connects and judges outdoor coil pipe used frosting degree, it is possible thereby to accurately judge that air conditioner enters the proper moment of defrosting, and
It effectively eliminates and limitation when frosting degree is judged using outdoor coil temperature in the prior art, reduce the defrosting of air conditioner
Number promotes user experience.Above-mentioned steps are described in further detail below.
In above-mentioned steps S110, any of means may be used to detect in the real-time current value of outdoor fan,
This is no longer described in detail.
In above-mentioned steps S120, selected standard current value is standard current value of the outdoor fan under current rotating speed.
Specifically, electric current of the outdoor fan measured in the state of outdoor unit non-frosting due to standard current value under different rotating speeds
Value, these standard current values have been previously written the control program of air conditioner, therefore in the real-time electricity for detecting outdoor fan
After flow valuve, directly the real-time current value detected can be compared with the standard current value under current rotating speed.It needs to illustrate
, selecting a kind of mode of standard current value can be：By detecting the rotating speed of outdoor fan, then existed according to current rotating speed
Standard current value identical with current rotating speed is selected in the standard current value to prestore.It in addition to this can also be rational according to other
Mode selectes standard current value.
In the present embodiment, the specific method of the real-time current value and selected standard current value that compare outdoor fan is：
Calculate the ratio of the real-time current value and selected standard current value of outdoor fan.That is, being judged with the ratio of the two
The variation of the real-time current value of outdoor fan.
In above-mentioned steps S130, the step of according to comparison result judging whether that air conditioner is made to enter defrosting mode, specifically wraps
It includes：If the real-time current value of outdoor fan and the ratio of selected standard current value are less than the first preset value, make air conditioner
Into defrosting mode；If the real-time current value of outdoor fan and the ratio of selected standard current value are default not less than first
Value then makes air conditioner maintain current heating condition, does not enter defrosting mode.Wherein, which can be 0.85-0.95
Between arbitrary value.
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 is in heating condition, the real-time current value I of step S210, detection outdoor fan is first carried outs。
Subsequently into step S220, judge Is/IbValue whether be less than 0.9 (the first preset value), wherein IbFor selected normalized current
Value, i.e. standard current value of the outdoor fan under current rotating speed.If Is/Ib＜ 0.9 then enters step S230, air conditioner is made to transport
Row defrosting mode；If Is/Ib>=0.9, then it enters step S240, air conditioner is made to maintain 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.
The air conditioner defrosting control method of the present invention further includes the steps that exiting defrosting mode.For example, with continued reference to
Fig. 2 executes step S250, calculates I after air conditioner enters defrosting modes/IbValue, and judge the ratio whether be equal to 1.
If Is/Ib=1, illustrate that the current value of outdoor fan is equal with selected standard current value at this time, that is, illustrates on outdoor coil pipe used
Frost has been removed, and therefore, enters step S260, air conditioner exits defrosting mode.Otherwise, illustrate that the frost on outdoor coil pipe used does not have also
It is removed totally, continues to run with defrosting mode at this time.
It will be readily appreciated by those skilled in the art that during defrosting, the current value of outdoor fan can gradually increase, when
When the real-time current value of outdoor fan gradually increases to equal with the standard current value selected, illustrate on outdoor coil pipe used frost
It is removed, and during atual detection, allow IsAnd IbBetween there are certain errors.As an example, outdoor fan
Real-time current value IsWith selected standard current value IbRatio be more than or equal to the second preset value when, then exit defrosting mode.Its
In, arbitrary value of second preset value between 0.95-1.For example, during defrosting, if the real-time electricity of outdoor fan
Flow valuve, which gradually increases to, meets Is/Ib>=0.95, you can judge that the frost on outdoor coil pipe used is eliminated substantially, can select to move back at this time
Go out defrosting mode.Those skilled in the art can require according to actual defrosting, reasonably set the second preset value.
In conclusion the present invention judges to be by comparing the real-time current value of outdoor fan with selected standard current value
It is no that air conditioner is made to enter defrosting mode.Since the size of current of outdoor fan can occur accordingly with outdoor coil pipe used frosting degree
Variation, and selected standard current value is the current value of the outdoor fan measured in the state of outdoor unit non-frosting, passes through ratio
The real-time current value of wind turbine can accurately reflect the change of the size of current of outdoor fan with selected standard current value than outdoor
Change situation, therefore, can more accurately reflect room by comparing the real-time current value and selected standard current value of outdoor fan
The frosting degree of outer coil pipe to more accurately select defrosting opportunity, and is effectively eliminated in the prior art using outdoor coil pipe used
Temperature judges limitation when frosting degree, reduces the defrosting number of air conditioner, promotes user experience.
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 (10)
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 real-time current value of outdoor fan is detected；
Compare the real-time current value of outdoor fan and selected standard current value；
Judged whether that air conditioner is made to enter defrosting mode according to comparison result；
Wherein, the standard current value is the electricity of the outdoor fan that is measured in the state of outdoor unit non-frosting under different rotating speeds
Flow valuve.
2. air conditioner defrosting control method according to claim 1, which is characterized in that the selected standard current value is
Standard current value of the outdoor fan under current rotating speed.
3. air conditioner defrosting control method according to claim 2, which is characterized in that " compare the real-time electricity of outdoor fan
The step of flow valuve and selected standard current value " includes：
Calculate the ratio of the real-time current value and selected standard current value of the outdoor fan.
4. air conditioner defrosting control method according to claim 3, which is characterized in that " judged whether according to comparison result
So that air conditioner is entered defrosting mode " the step of specifically include：
If the real-time current value of the outdoor fan and the ratio of selected standard current value are less than the first preset value, make institute
It states air conditioner and enters defrosting mode；
If the real-time current value of the outdoor fan and the ratio of selected standard current value are not less than the first preset value, make
The air conditioner maintains current heating condition, does not enter defrosting mode.
5. air conditioner defrosting control method according to claim 4, which is characterized in that first preset value is 0.85-
Arbitrary value between 0.95.
6. air conditioner defrosting control method according to any one of claim 1 to 5, which is characterized in that the defrosting control
Method processed further includes the steps that judging whether to exit defrosting mode, which includes：
After the air conditioner enters defrosting mode, compare the real-time current value of outdoor fan and selected standard current value；
Judged whether that air conditioner is made to exit defrosting mode according to comparison result.
7. air conditioner defrosting control method according to claim 6, which is characterized in that " judged whether according to comparison result
So that air conditioner is exited defrosting mode " the step of specifically include：
If the real-time current value of the outdoor fan is equal with selected standard current value, defrosting mode is exited；Otherwise, make
The air conditioner maintains defrosting operating condition.
8. air conditioner defrosting control method according to claim 6, which is characterized in that " enter defrosting in the air conditioner
After pattern, compare the real-time current value of outdoor fan and selected standard current value " the step of include：
Calculate the ratio of the present current value and selected standard current value of the outdoor fan.
9. air conditioner defrosting control method according to claim 8, which is characterized in that " judged whether according to comparison result
So that air conditioner is exited defrosting mode " the step of include：
If the real-time current value of the outdoor fan and the ratio of selected standard current value are more than or equal to the second preset value,
Exit defrosting mode；Otherwise, the air conditioner is made to maintain defrosting operating condition.
10. air conditioner defrosting control method according to claim 9, which is characterized in that second preset value is 0.95-
Arbitrary value between 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152025.1A CN108444134A (en) | 2018-02-14 | 2018-02-14 | Air conditioner defrosting control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152025.1A CN108444134A (en) | 2018-02-14 | 2018-02-14 | Air conditioner defrosting control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108444134A true CN108444134A (en) | 2018-08-24 |
Family
ID=63192419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810152025.1A Pending CN108444134A (en) | 2018-02-14 | 2018-02-14 | Air conditioner defrosting control method |
Country Status (1)
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| CN (1) | CN108444134A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779265A (en) * | 2019-11-19 | 2020-02-11 | 浙江工业大学 | Remote monitoring system and method for air source heat pump defrosting based on fan current |
| CN110779264A (en) * | 2019-11-19 | 2020-02-11 | 浙江工业大学 | Defrosting control system and control method based on fan vibration and information fusion |
| 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 |
| WO2021208420A1 (en) * | 2020-04-13 | 2021-10-21 | Qingdao Haier Air Conditioner General Corp., Ltd. | Method of operating an air conditioner unit based on airflow |
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| CN104728989A (en) * | 2013-12-18 | 2015-06-24 | 珠海格力电器股份有限公司 | Defrosting control method for air conditioner and air conditioner for executing defrosting control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779265A (en) * | 2019-11-19 | 2020-02-11 | 浙江工业大学 | Remote monitoring system and method for air source heat pump defrosting based on fan current |
| CN110779264A (en) * | 2019-11-19 | 2020-02-11 | 浙江工业大学 | Defrosting control system and control method based on fan vibration and information fusion |
| WO2021208420A1 (en) * | 2020-04-13 | 2021-10-21 | Qingdao Haier Air Conditioner General Corp., Ltd. | Method of operating an air conditioner unit based on airflow |
| 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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Application publication date: 20180824 |
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