CN107642924A - Prevent the method and air conditioner of evaporator icing frost - Google Patents
Prevent the method and air conditioner of evaporator icing frost Download PDFInfo
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- CN107642924A CN107642924A CN201710888431.XA CN201710888431A CN107642924A CN 107642924 A CN107642924 A CN 107642924A CN 201710888431 A CN201710888431 A CN 201710888431A CN 107642924 A CN107642924 A CN 107642924A
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- evaporator
- external disk
- temperature
- threshold value
- frost
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Abstract
The invention provides a kind of method and air conditioner for preventing evaporator icing frost.This prevents the method for evaporator icing frost, including：In cryogenic refrigeration pattern, condenser external disk temperature is obtained；If the condenser external disk temperature is less than condenser external disk temperature threshold value, the compressor cooling continuous working period is obtained；If the compressor cooling continuous working period is more than compressor cooling run time threshold value, control enters defrosting mode；Wherein, the continuous working period is refrigeration continuous working period of the compressor after condenser external disk temperature is less than condenser external disk temperature threshold value.The method and air conditioner of the present invention for preventing evaporator icing frost, by detecting condenser external disk temperature and compressor operating situation, the white situation that can accurately be frozen in cryogenic refrigeration to evaporator judges, and then it is white effectively to prevent that evaporator from freezing, and avoids the generation of abnormal conditions.
Description
Technical field
The present invention relates to air-conditioning technical field, the side of evaporator icing frost is prevented in the case of more particularly to a kind of cryogenic refrigeration
Method and air conditioner.
Background technology
At present, air conditioner refrigeration prevents evaporator from freezing frost mainly by induction evaporation mode device middle portion temperature and thus judged
Evaporator freezes white situation, and then opened by stopping compressor makes under normal circumstances on the inside of inner blower come defrosting, this method
With general no problem, but under special circumstances, outdoor temperature is too low, synchronously there is refrigeration demand, causes system pressure too low, evaporation
Hypotony, cause evaporator localized ice build white, evaporator middle portion temperature is overheat refrigerant temperature, can not accurately judge to evaporate
The white situation of device icing.
The content of the invention
In view of this, the present invention is directed to propose a kind of method and air conditioner for preventing evaporator icing frost, can accurately sentence
Determine evaporator icing frost, avoid evaporator from producing abnormal, and then meet normal use demand.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of method for preventing evaporator icing frost, including：
In cryogenic refrigeration pattern, condenser external disk temperature is obtained；
If the condenser external disk temperature is less than condenser external disk temperature threshold value, when obtaining compressor cooling continuous service
Between；
If the compressor cooling continuous working period is more than compressor cooling run time threshold value, control enters defrosting mould
Formula；Wherein,
The continuous working period is system of the compressor after condenser external disk temperature is less than condenser external disk temperature threshold value
The cold continuous working period.
Further, condenser external disk temperature threshold value≤25 degree Celsius.
Further, compressor cooling run time threshold value >=10 minute.
Further, the method for preventing evaporator icing frost also includes,
Obtain environment temperature；
Wherein, if the environment temperature is less than or equal to environment temperature threshold value and is in refrigeration mode, i.e., described low temperature system
Chill formula, then according to condenser external disk temperature and the control defrosting of compressor cooling run time；If environment temperature is higher than environment temperature
Spend threshold value or in non-brake method pattern, then controlled and defrosted according to evaporator temperature.
Further, environment temperature threshold value≤15 degree Celsius.
Further, described controlled according to evaporator temperature is defrosted, including：
Obtain evaporator temperature；
If the evaporator temperature is less than evaporator temperature threshold value, control enters defrosting mode.
Further, after controlling into defrosting mode, in addition to,
Inner blower is run, inside air is exchanged heat with frost to remove frost；And
Compressor out of service.
A kind of computer equipment, including memory, processor and be stored on the memory and can be in the processor
The computer program of upper operation, being realized described in the computing device during computer program described prevents that evaporator from freezing frost
Method.
A kind of computer-readable recording medium, is stored thereon with computer program, and the computer program is held by processor
The described method for preventing evaporator icing frost is realized during row.
A kind of air conditioner, prevent evaporator from freezing white method to prevent evaporator icing frost, the air-conditioning using described
Device comprises at least：
Temperature sensor, it is arranged on the condenser of air conditioner, for obtaining condenser external disk temperature；
Timer, for obtaining the compressor cooling continuous working period of air conditioner, wherein, the continuous working period is
Refrigeration continuous working period of the compressor after condenser external disk temperature is less than condenser external disk temperature threshold value；
Controller, for when being more than compressor cooling run time threshold value in the compressor cooling continuous working period,
Control air conditioner enters defrosting mode.
Relative to prior art, it is of the present invention prevent evaporator freeze frost method and air conditioner have it is following excellent
Gesture：
(1) method and air conditioner of the present invention for preventing evaporator icing frost, by detecting condenser external disk temperature
And compressor operating situation, the white situation that can accurately be frozen in cryogenic refrigeration to evaporator judge, so it is effective anti-
Only evaporator freezes white, avoids producing abnormal conditions.
(2) method and air conditioner of the present invention for preventing evaporator icing frost, by detecting condenser external disk temperature
And compressor operating situation, evaporator can be defrosted in low temperature and humidity, both avoid defrosting not in time, also avoided
Frequently defrosted when frostless or a small amount of white, improve household air-conditioner, reduce energy consumption, reduce when running the air conditioner into
This.
(3) present invention prevents the method and air conditioner of evaporator icing frost, applied widely, can be widely applied to all kinds of need
Will refrigeration work at low ambient temperatures air-conditioning and refrigeration plant.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the method flow diagram that evaporator icing frost is prevented in the case of cryogenic refrigeration described in the embodiment of the present invention；
Fig. 2 is another flow of method that evaporator icing frost is prevented in the case of cryogenic refrigeration described in the embodiment of the present invention
Figure.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The invention provides a kind of method for preventing evaporator icing frost.Fig. 1 is in low temperature system according to the embodiment of the present invention
The method flow diagram of evaporator icing frost is prevented in the case of cold.As shown in figure 1, it the described method comprises the following steps：
S1, in cryogenic refrigeration pattern, obtain condenser external disk temperature；
S2, if the condenser external disk temperature is less than condenser external disk temperature threshold value, obtain compressor cooling continuous service
Time；
S3, if the compressor cooling continuous working period is more than compressor cooling run time threshold value, control, which enters, to remove
White pattern；Wherein,
The continuous working period is system of the compressor after condenser external disk temperature is less than condenser external disk temperature threshold value
The cold continuous working period.
In one embodiment, condenser external disk temperature threshold value≤25 degree Celsius, preferably 20 degrees Celsius.It is described
Compressor cooling run time threshold value >=10 minute, preferably 30 minutes.
It please coordinate shown in reference picture 2, if compressor is after condenser external disk temperature is less than condenser external disk temperature threshold value
The refrigeration continuous working period is more than compressor cooling run time threshold value, then it is white to judge that evaporator freezes, control enters defrosting mould
Formula；The defrosting mode system includes：Inner blower is run, inside air is exchanged heat with frost to remove frost；And pressure out of service
Contracting machine.
Further, the method that described cryogenic refrigeration prevents evaporator icing frost, in addition to,
Environment temperature is obtained, the specific judgement side of evaporator icing frost extremely is determined according to environment temperature and operational mode
Method：Wherein, if the environment temperature is less than or equal to environment temperature threshold value and is in refrigeration mode, i.e. cryogenic refrigeration pattern, then
It is white to judge whether evaporator freezes extremely according to condenser external disk temperature and compressor cooling run time, and control is accordingly
It is no enter evaporator defrosting mode (whether frozen frost according to abovementioned steps S1~S3 judgement evaporators, so control whether into
Enter defrosting mode)；If environment temperature is higher than environment temperature threshold value or in non-brake method pattern, according to evaporator temperature, preferably
It is white to judge whether evaporator freezes extremely according to evaporator middle portion temperature, and controls whether to enter evaporator defrosting mould accordingly
Formula.
Environment temperature threshold value≤15 degree Celsius.
Wherein, controlled and defrosted according to evaporator temperature, including：
Obtain evaporator temperature；
If the evaporator temperature is less than evaporator temperature threshold value, it is white to judge that evaporator freezes, and control into defrosting
Pattern.
Likewise, now the defrosting mode system includes：Inner blower is run, inside air is exchanged heat with frost to remove ice
Frost；And compressor out of service.Evaporator temperature threshold value≤- 5 degree Celsius.
In addition, if environment temperature is higher than environment temperature threshold value or in non-brake method pattern, can also selectivity according to cold
Condenser external disk temperature and the control defrosting of compressor cooling run time, i.e., carry out judging that evaporator is according to abovementioned steps S1~S3
The no frost that freezes, and then control whether to enter defrosting mode.That is, in environment temperature higher than environment temperature threshold value or in non-
In the case of refrigeration mode, above two judges that the white mode of icing is used equally for sentencing the situation of evaporator icing frost extremely
It is fixed.
More specifically, the method that the present invention prevents evaporator icing frost, is deduced by detecting condenser external disk temperature
Whether system pressure is too low, according to the linear relationship between condenser external disk temperature and system pressure, by condenser external disk temperature
System pressure value can be determined, if the condenser external disk temperature is less than condenser external disk temperature threshold value, it is determined that system pressure
It is too low；If compressor also goes to prevent evaporator knot long lasting for operation, judgement by induction evaporation mode device middle portion temperature
Frost function has failed, it is possible thereby to determine that evaporator has the abnormal white situation that freezes in time.
In addition, present invention also offers a kind of air conditioner, prevent evaporator from freezing white method to prevent from steaming using above-mentioned
Device icing frost is sent out, the air conditioner includes：Evaporator, condenser, compressor, the first temperature sensor, timer and controller；Its
In,
First temperature sensor, is arranged on the condenser, for obtaining condenser external disk temperature；
The timer, for obtaining the compressor cooling continuous working period, wherein, the continuous working period is compression
Refrigeration continuous working period of the machine after condenser external disk temperature is less than condenser external disk temperature threshold value；
The controller, for being more than compressor cooling run time threshold value in the compressor cooling continuous working period
When, control enters defrosting mode.
Further, the air conditioner also includes：Inner blower.
In one embodiment, the air conditioner may also include：Second temperature sensor, for obtaining environment temperature；
And three-temperature sensor, it is arranged on evaporator, for obtaining evaporator temperature, preferably obtains evaporator middle portion temperature.
The air conditioner, environment temperature is obtained by the second temperature sensor, if the environment temperature is less than or waited
In environment temperature threshold value and refrigeration mode is in, i.e., described cryogenic refrigeration pattern, is then obtained by first temperature sensor
Condenser external disk temperature；If the condenser external disk temperature is less than condenser external disk temperature threshold value, further pass through the meter
When device obtain the compressor cooling continuous working period；If the compressor cooling continuous working period is more than compression mechanism cold operation
Time threshold, the controller then judge frosting, and control enters defrosting mode；Wherein, the continuous working period is compressor
The refrigeration continuous working period after condenser external disk temperature is less than condenser external disk temperature threshold value.If environment temperature is higher than environment
Temperature threshold or in non-brake method pattern, then obtain the evaporator middle portion temperature, if institute by the three-temperature sensor
State evaporator middle portion temperature and be less than evaporator middle portion temperature threshold value, control enters defrosting mode.Into after defrosting mode, operation
The inner blower, inside air is exchanged heat with frost and reach the effect for removing frost, while the compressor out of service.
Condenser external disk temperature threshold value≤25 degree Celsius, preferably 20 degrees Celsius.During the compression mechanism cold operation
Between threshold value >=10 minute, preferably 20 minutes.Environment temperature threshold value≤15 degree Celsius.
In addition, when environment temperature is higher than environment temperature threshold value or in non-brake method pattern, can also use and low temperature system
Identical decision method during chill formula, i.e., judge whether evaporator freezes according to condenser external disk temperature and compressor operating situation
Frost, and then control defrosting.
Air conditioner of the present invention, can be in low temperature and humidity pair when refrigeration work is run under the low operating mode of environment temperature
Evaporator is defrosted, and has both been avoided defrosting not in time, has frequently been defrosted when it also avoid frostless or a small amount of white, improve air conditioner
Performance, reduce energy consumption, reduce cost when running the air conditioner.
In one embodiment, the invention provides a kind of computer equipment, including memory, processor and it is stored in
On memory and the computer program that can run on a processor.The computing device computer program performs anti-as described above
The only method of evaporator icing frost.The computer journey of the method for evaporator icing frost is prevented in the technical scheme, described in execution
Sequence stores on a memory, and during computing device computer program, the white situation that can be frozen to A/C evaporator accurately be sentenced
It is disconnected, and defrost in time, air conditioning energy consumption is reduced, improves the heating performance of air-conditioning.
In one embodiment, the invention provides a kind of computer-readable medium, it is stored thereon with computer journey
Sequence, the method as described above for preventing evaporator icing frost is realized when the computer program is executed by processor.In the technical side
In case, processor realizes that the method as described above for preventing evaporator icing frost is needed by computer program, this computer
Program needs to be stored in computer-readable medium.This computer-readable medium ensure that computer program can be located
Manage device to perform, so as to carry out accurate judgement to air-conditioning frosting degree, avoid frostless defrosting, reduce air conditioning energy consumption, improve
Heating effect.
To sum up, the present invention prevents the method and air conditioner of evaporator icing frost, can pass through inspection in the case of cryogenic refrigeration
Survey condenser external disk temperature and compressor operating situation, can judge to remove the white situation that freezes extremely on evaporator in time, control into
Enter evaporator deice mode, and then inner blower is opened come defrosting by stopping compressor, thus improve household air-conditioner, reduce
Energy consumption, reduce cost when running the air conditioner.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (10)
- A kind of 1. method for preventing evaporator icing frost, it is characterised in that including：In cryogenic refrigeration pattern, condenser external disk temperature is obtained；If the condenser external disk temperature is less than condenser external disk temperature threshold value, the compressor cooling continuous working period is obtained；If the compressor cooling continuous working period is more than compressor cooling run time threshold value, control enters defrosting mode； Wherein,The continuous working period is that refrigeration of the compressor after condenser external disk temperature is less than condenser external disk temperature threshold value is held Continuous run time.
- 2. the method according to claim 1 for preventing evaporator icing frost, it is characterised in that the condenser external disk temperature Threshold value≤25 degree Celsius.
- 3. the method according to claim 1 for preventing evaporator icing frost, it is characterised in that the compression mechanism cold operation Time threshold >=10 minute.
- 4. the method according to claim 1 for preventing evaporator icing frost, it is characterised in that also include,Obtain environment temperature；Wherein, if the environment temperature is less than or equal to environment temperature threshold value and is in refrigeration mode, i.e., described cryogenic refrigeration mould Formula, then according to condenser external disk temperature and the control defrosting of compressor cooling run time；If environment temperature is higher than environment temperature threshold It is worth or in non-brake method pattern, is then controlled and defrosted according to evaporator temperature.
- 5. the method according to claim 4 for preventing evaporator icing frost, it is characterised in thatEnvironment temperature threshold value≤15 degree Celsius.
- 6. the method according to claim 4 for preventing evaporator icing frost, it is characterised in that controlled according to evaporator temperature Defrosting, including：Obtain evaporator temperature；If the evaporator temperature is less than evaporator temperature threshold value, control enters defrosting mode.
- 7. the method for preventing evaporator icing frost according to claim 1 or 6, it is characterised in that enter defrosting in control After pattern, in addition to,Inner blower is run, inside air is exchanged heat with frost to remove frost；AndCompressor out of service.
- 8. a kind of computer equipment, including memory, processor and it is stored on the memory and can be on the processor The computer program of operation, it is characterised in that realize such as claim 1 to 7 described in the computing device during computer program Any one of prevent evaporator freeze frost method.
- 9. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program quilt The method for preventing evaporator icing frost as any one of claim 1 to 7 is realized during computing device.
- A kind of 10. air conditioner, it is characterised in that using any one of claim 1 to 7 prevent evaporator freeze frost Method is white to prevent evaporator from freezing, and the air conditioner comprises at least：Temperature sensor, it is arranged on the condenser of air conditioner, for obtaining condenser external disk temperature；Timer, for obtaining the compressor cooling continuous working period of air conditioner, wherein, the continuous working period is compression Refrigeration continuous working period of the machine after condenser external disk temperature is less than condenser external disk temperature threshold value；Controller, for when being more than compressor cooling run time threshold value in the compressor cooling continuous working period, controlling Air conditioner enters defrosting mode.
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| CN201710888431.XA CN107642924B (en) | 2017-09-27 | 2017-09-27 | The method and air conditioner for preventing evaporator from freezing white |
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| CN201710888431.XA CN107642924B (en) | 2017-09-27 | 2017-09-27 | The method and air conditioner for preventing evaporator from freezing white |
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| CN107642924A true CN107642924A (en) | 2018-01-30 |
| CN107642924B CN107642924B (en) | 2019-11-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186228A (en) * | 2019-06-10 | 2019-08-30 | 广东美的暖通设备有限公司 | Air conditioner, air conditioner progress control method and readable storage medium storing program for executing |
| CN112611086A (en) * | 2020-12-17 | 2021-04-06 | 海信（广东）空调有限公司 | Control method of mobile air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01131863A (en) * | 1987-11-17 | 1989-05-24 | Mitsubishi Electric Corp | Heat pump device |
| JPH10220932A (en) * | 1997-01-30 | 1998-08-21 | Mitsubishi Heavy Ind Ltd | Method of defrosting refrigerator |
| CN202660651U (en) * | 2012-07-05 | 2013-01-09 | 珠海格力电器股份有限公司 | Anti-frosting air conditioner |
| CN104534754A (en) * | 2014-11-28 | 2015-04-22 | 广东美的制冷设备有限公司 | Mobile air conditioner and frost removal control method thereof |
-
2017
- 2017-09-27 CN CN201710888431.XA patent/CN107642924B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01131863A (en) * | 1987-11-17 | 1989-05-24 | Mitsubishi Electric Corp | Heat pump device |
| JPH10220932A (en) * | 1997-01-30 | 1998-08-21 | Mitsubishi Heavy Ind Ltd | Method of defrosting refrigerator |
| CN202660651U (en) * | 2012-07-05 | 2013-01-09 | 珠海格力电器股份有限公司 | Anti-frosting air conditioner |
| CN104534754A (en) * | 2014-11-28 | 2015-04-22 | 广东美的制冷设备有限公司 | Mobile air conditioner and frost removal control method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186228A (en) * | 2019-06-10 | 2019-08-30 | 广东美的暖通设备有限公司 | Air conditioner, air conditioner progress control method and readable storage medium storing program for executing |
| CN112611086A (en) * | 2020-12-17 | 2021-04-06 | 海信（广东）空调有限公司 | Control method of mobile air conditioner |
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| Publication number | Publication date |
|---|---|
| CN107642924B (en) | 2019-11-15 |
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