CN108800438A - Air conditioner inhibits frosting control method - Google Patents
Air conditioner inhibits frosting control method Download PDFInfo
- Publication number
- CN108800438A CN108800438A CN201810509883.7A CN201810509883A CN108800438A CN 108800438 A CN108800438 A CN 108800438A CN 201810509883 A CN201810509883 A CN 201810509883A CN 108800438 A CN108800438 A CN 108800438A
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- Prior art keywords
- temperature
- air conditioner
- frosting
- control method
- difference
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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
- 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
- F24F11/62—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 inhibition frosting control method.In order to realize that air conditioner inhibits the purpose of frosting, air conditioner proposed by the present invention that frosting control method is inhibited to include the following steps:During air conditioner heat-production is run, indoor environment temperature is obtained;Calculating difference pn=preset temperatures-indoor environment temperature;If pn < preset values, outdoor coil pipe used temperature, and calculating difference D=frostings temperature-outdoor coil temperature are obtained;The running frequency of compressor is selectively controlled according to the difference D, so that the difference D is less than setting value.The present invention by comparing preset temperature and indoor environment temperature difference pn, in the case of pn < preset values, again by controlling the running frequency of compressor, to ensure the efficiency of air conditioner booting heating, the purpose for inhibiting frosting can be also played.
Description
Technical field
The invention belongs to air conditioner technical fields, and in particular to a kind of air conditioner inhibition frosting 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 air conditioner is all to carry out defrosting operation again after frosting, to ensure the heating efficiency of air conditioner.For example,
Air conditioner in running heating operations, using run time+outdoor coil temperature judge air conditioner whether frosting, and in air conditioner
After frosting state, air conditioner is made to enter defrosting mode.As long as however carrying out defrosting to air conditioner and may result in indoor temperature
There is certain fluctuation.
Therefore, the present invention proposes a kind of air conditioner frosting control method is inhibited to solve the above problems.
Invention content
In order to solve the above problem in the prior art, in order to realize that air conditioner inhibits the purpose of frosting, the present invention to propose
A kind of air conditioner inhibits frosting control method, the control method to include the following steps:In the process of air conditioner heat-production operation
In, obtain indoor environment temperature;Calculating difference pn=preset temperatures-indoor environment temperature;If pn < preset values, obtain
Outdoor coil pipe used temperature, and calculating difference D=frostings temperature-outdoor coil temperature;It is selectively controlled according to the difference D
The running frequency of compressor, so that the difference D is less than setting value.
In the preferred embodiment that above-mentioned air conditioner inhibits frosting control method, " selectively controlled according to the difference D
The running frequency of compressor processed so that the difference D be less than setting value " the step of include:If the difference D >=setting value,
The running frequency of the compressor is then reduced so that the difference D < setting values.
In the preferred embodiment that above-mentioned air conditioner inhibits frosting control method, the setting value appointing between 0-3
Meaning value.
In the preferred embodiment that above-mentioned air conditioner inhibits frosting control method, the setting value is 0;Or it described sets
Definite value is 3.
In the preferred embodiment that above-mentioned air conditioner inhibits frosting control method, the frosting temperature is according to air conditioner
Use environment predetermined temperature value;Or the frosting temperature is the temperature value detected by detection device.
In the preferred embodiment that above-mentioned air conditioner inhibits frosting control method, the frosting temperature passes through following steps
It calculates:Obtain outdoor environment temperature;Obtain outside relative humidity;According to the outdoor environment temperature and the outside relative humidity
Calculate the frosting temperature of air conditioner.
In the preferred embodiment that above-mentioned air conditioner inhibits frosting control method, air conditioner is calculated according to following formula
Frosting temperature;T=-24.5+0.9T1+28.6 Φ;Wherein, T is frosting temperature, and T1 is outdoor environment temperature, and Φ is outdoor opposite
Humidity.
In the preferred embodiment that above-mentioned air conditioner inhibits frosting control method, the preset temperature can be in 16-30
It is selected between DEG C.
In the preferred embodiment that above-mentioned air conditioner inhibits frosting control method, the preset value appointing between 2-4
Meaning value;And/or the preset value is 3.
In the preferred embodiment that above-mentioned air conditioner inhibits frosting control method, " selectively controlled according to the difference D
The running frequency of compressor processed so that the difference D be less than setting value " the step of include:Compressor is controlled by pid algorithm
Running frequency.
The present invention by comparing preset temperature and indoor environment temperature difference pn, in the case of pn < preset values, then
By controlling the running frequency of compressor, outdoor coil pipe used temperature is set to be higher than frosting temperature, or be no more than 3 less than frosting temperature
DEG C (or other rational temperature) can also play inhibition frosting to ensure the efficiency of air conditioner booting heating
Purpose, make user need not defrost or carry out during using air conditioner heat-production seldom time defrosting operation,
Promote the usage experience of user.
Description of the drawings
Fig. 1 is that the air conditioner of the present invention inhibits the broad flow diagram of frosting control method.
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.
As shown in Figure 1, the air conditioner of the present invention inhibits frosting control method to include the following steps:S110, in air conditioner system
During heat operation, indoor environment temperature is obtained;S120, calculating difference pn=preset temperatures-indoor environment temperature;S130,
If pn < preset values, outdoor coil pipe used temperature, and calculating difference D=frostings temperature-outdoor coil temperature are obtained;S140,
The running frequency of compressor is selectively controlled according to the difference D, so that the difference D is less than setting value.Wherein, temperature is preset
Degree can be set by User Defined, such as set preset temperature to the arbitrary temp between 16-30 DEG C, which can manage
Solve the desired temperature reached by the desired interior of user.
Specifically, the present invention compares preset temperature and indoor environment temperature first, if preset temperature is higher than indoor ring
Border temperature is more than preset value (preset value is 3 in the present embodiment), then illustrates to be in the booting heating stage at this time, due to just starting
Heating, therefore be not in frost, therefore the operation heating of air conditioner high frequency, i.e. quickly heating can be made.Only default
When temperature is less than 3 higher than indoor environment temperature, illustrate that air conditioner has made indoor environment temperature rise to desired temperature, this space-time
Adjusting device, heating operation has been for a period of time.In this case, then the running frequency by controlling compressor, and then outside control room
Coil temperature inhibits the purpose of frosting to realize.So, the efficiency that can either ensure air conditioner booting heating, can also rise
To the purpose for inhibiting frosting.
It should be noted that above-mentioned preset value can neatly be selected by those skilled in the art, such as between selection 2-4
Arbitrary value, these are without departure from protection scope of the present invention.
In step S130 and step S140, as an example, as difference D >=0, that is to say, that when outdoor coil pipe used
Temperature be less than frosting temperature when, illustrate outdoor unit there are frosting may, at this time can by reduce compressor frequency, make difference
Value D < 0, that is, make outdoor coil pipe used temperature be increased to frosting temperature or more, to inhibit outdoor unit frosting.People in the art
Although member is, it is understood which during inhibiting frosting, reduces the running frequency of compressor, therefore can sacrifice
Part heating capacity, still, which can effectively inhibit outdoor unit frosting, to which defrosting number be reduced to a great extent,
Reduce the excessive problem of the fluctuations in indoor temperature caused by defrosting.
As another example, as difference D >=3, that is to say, that when outdoor coil pipe used temperature is more than less than frosting temperature
At 3 DEG C, illustrate that outdoor unit is possible in the presence of greatly frosting, can make difference D < 3 by the frequency of reduction compressor at this time,
That is, making outdoor coil pipe used temperature be increased to specific temperature (i.e. frosting temperature subtract 3 DEG C) or more, to inhibit outdoor unit frosting.This
Although field technology personnel are, it is understood which is during inhibiting frosting, outdoor coil pipe used temperature allows to be less than
Frosting temperature, thus may lead to a small amount of frosting occur, but it is no more than 3 since outdoor coil pipe used temperature is less than frosting temperature
DEG C, therefore, it can equally play the effect for inhibiting frosting.Also, since as long as which control outdoor coil temperature is less than knot
White temperature is no more than 3 DEG C, and therefore, the running frequency of compressor will not be lowered too much, thus influence to indoor heating amount compared with
It is small.In other words, on the one hand which plays the purpose for inhibiting outdoor unit frosting, on the other hand also reduces to indoor heating
The influence of amount.
It is illustrated as example it should be noted that setting value among the above is 0 and 3 respectively, people in the art
Member can also need neatly to select other rational setting values according to actual design, such as the arbitrary value between selection 0-3
As setting value, these are without departure from protection scope of the present invention.
As an example, the method for above-mentioned control compressor operating frequency can be realized by pid algorithm, or use other
The method of arbitrary known control compressor operating frequency, these are without departure from protection scope of the present invention.
It will be appreciated to those of skill in the art that frosting temperature can be preset according to the use environment of air conditioner,
It only needs to obtain outdoor coil temperature in use, and is compared with preset frosting temperature.Frosting temperature
Degree can also be directly detected by corresponding detection device, such as install corresponding detection device in outdoor unit, in real time or
Person interval preset time detects a frosting temperature.Frosting temperature can also be relatively wet by obtaining outdoor environment temperature and outdoor
It is calculated after degree.Specifically, the frosting temperature of air conditioner is calculated according to following formula:
T=-24.5+0.9T1+28.6Φ (1)
In above-mentioned formula (1), T is frosting temperature, and T1 is outdoor environment temperature, and Φ is outside relative humidity.
In conclusion difference pn of the present invention by comparing preset temperature and indoor environment temperature, in pn < preset values
In the case of, then the running frequency by controlling compressor, so that outdoor coil pipe used temperature is higher than frosting temperature, or be less than frosting temperature
Degree is no more than 3 DEG C (or other rational temperature), to ensure the efficiency of air conditioner booting heating, can also play
The purpose for inhibiting frosting makes user that seldom secondary remove need not be defrosted or carried out during using air conditioner heat-production
Frost operation, promotes the usage experience of user.
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 inhibits frosting control method, which is characterized in that the control method includes the following steps:
During air conditioner heat-production is run, indoor environment temperature is obtained;
Calculating difference pn=preset temperatures-indoor environment temperature;
If pn < preset values, outdoor coil pipe used temperature, and calculating difference D=frostings temperature-outdoor coil temperature are obtained;
The running frequency of compressor is selectively controlled according to the difference D, so that the difference D is less than setting value.
2. air conditioner according to claim 1 inhibits frosting control method, which is characterized in that " selected according to the difference D
Property control the running frequency of compressor so that the difference D is less than setting value " the step of include:
If the difference D >=setting value, the running frequency of the compressor is reduced so that the difference D < setting values.
3. air conditioner according to claim 2 inhibits frosting control method, which is characterized in that the setting value be 0-3 it
Between arbitrary value.
4. air conditioner according to claim 3 inhibits frosting control method, which is characterized in that the setting value is 0;Or
The setting value is 3.
5. air conditioner according to claim 1 inhibits frosting control method, which is characterized in that according to the frosting temperature
The use environment predetermined temperature value of air conditioner;Or
The frosting temperature is the temperature value detected by detection device.
6. air conditioner according to claim 1 inhibits frosting control method, which is characterized in that the frosting temperature by with
Lower step calculates:
Obtain outdoor environment temperature;
Obtain outside relative humidity;
The frosting temperature of air conditioner is calculated according to the outdoor environment temperature and the outside relative humidity.
7. air conditioner according to claim 6 inhibits frosting control method, which is characterized in that calculated according to following formula empty
Adjust the frosting temperature of device;
T=-24.5+0.9T1+28.6Φ;
Wherein, T is frosting temperature, T1For outdoor environment temperature, Φ is outside relative humidity.
8. air conditioner according to any one of claim 1 to 7 inhibits frosting control method, which is characterized in that described pre-
If temperature can select between 16-30 DEG C.
9. air conditioner according to any one of claim 1 to 7 inhibits frosting control method, which is characterized in that described pre-
If being worth the arbitrary value between 2-4;And/or
The preset value is 3.
10. air conditioner according to any one of claim 1 to 7 inhibits frosting control method, which is characterized in that " according to
The difference D selectively controls the running frequency of compressor so that the difference D be less than setting value " the step of include:
The running frequency of compressor is controlled by pid algorithm.
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CN201810509883.7A CN108800438A (en) | 2018-05-24 | 2018-05-24 | Air conditioner inhibits frosting control method |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109916000A (en) * | 2019-03-20 | 2019-06-21 | 珠海格力电器股份有限公司 | A kind of defrosting control method of air-conditioning, device, air-conditioning and storage medium |
CN114383268A (en) * | 2021-12-27 | 2022-04-22 | 青岛海尔空调器有限总公司 | Method and device for controlling electronic expansion valve, air conditioner and storage medium |
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CN106871338A (en) * | 2017-01-19 | 2017-06-20 | 青岛海尔空调器有限总公司 | A kind of air-conditioner defrosting control method |
CN107940677A (en) * | 2017-10-31 | 2018-04-20 | 青岛海尔空调器有限总公司 | A kind of control method and device for slowing down air-conditioner outdoor unit frosting |
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JP2009036483A (en) * | 2007-08-03 | 2009-02-19 | Daiwa Industries Ltd | Refrigerator and its defrosting method |
CN103591669A (en) * | 2013-10-18 | 2014-02-19 | 广东美的制冷设备有限公司 | Air-conditioner equipment and anti-frosting method and anti-frosting device for air-conditioner equipment |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109916000A (en) * | 2019-03-20 | 2019-06-21 | 珠海格力电器股份有限公司 | A kind of defrosting control method of air-conditioning, device, air-conditioning and storage medium |
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CN114383268A (en) * | 2021-12-27 | 2022-04-22 | 青岛海尔空调器有限总公司 | Method and device for controlling electronic expansion valve, air conditioner and storage medium |
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Application publication date: 20181113 |