CN108131776A - A kind of lack of fluorine of air-conditioners guard method and air conditioner - Google Patents
A kind of lack of fluorine of air-conditioners guard method and air conditioner Download PDFInfo
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- CN108131776A CN108131776A CN201711473895.0A CN201711473895A CN108131776A CN 108131776 A CN108131776 A CN 108131776A CN 201711473895 A CN201711473895 A CN 201711473895A CN 108131776 A CN108131776 A CN 108131776A
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- inner disc
- fluorine
- air conditioner
- air
- disc temperature
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- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 91
- 239000011737 fluorine Substances 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 43
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 title 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 65
- 125000001153 fluoro group Chemical group F* 0.000 claims abstract description 25
- 238000005057 refrigeration Methods 0.000 claims description 6
- 238000004378 air conditioning Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Abstract
The invention discloses a kind of lack of fluorine of air-conditioners guard methods and air conditioner, method to include：When air conditioner, which is run, to freeze, inner disc temperature change is monitored in real time, and is judged whether in normal refrigerating state；When judging that air conditioner is in normal refrigerating state, then start to detect return air temperature and the difference of inner disc temperature, and compared with preset first range, the second range；When judging that air conditioner is in improper refrigerating state, then scarce fluorine signal is reported, and start and lack fluorine protection operation；When the difference of return air temperature and inner disc temperature is in preset first range, then it represents that air conditioner overloads；When the difference of return air temperature and inner disc temperature is in preset second range, then scarce fluorine signal is reported, and start and lack fluorine protection operation.The present invention can effectively prevent accidentally protecting, and protection is more accurate, and method is simple, without increasing new hardware facility, program only need to be changed on the basis of existing hardware, cost more optimizes, and applicability is stronger.
Description
Technical field
The present invention relates to air-conditioning technical fields, and in particular to a kind of lack of fluorine of air-conditioners guard method air conditioner device.
Background technology
After carrying out analysis of experiments by the air conditioner that the compressor of air conditioner to Market Feedback is burnt, find to lack fluorine due to system
Caused by compressor burn account for the overwhelming majority ratio.Since when air conditioner lacks fluorine is up to more than 30%, the motor of compressor
Winding temperature will be more than that its design is firm, drastically decline so as to cause life of winding, the service life is made to be usually no more than 2 years.
Existing lack of fluorine of air-conditioners guard method is typically all that several sensors is set to be detected indoor temperature, because
This needs to increase new hardware facility, and cost is higher.And existing lack of fluorine of air-conditioners guard method can not effectively identify various
Situation is susceptible to and accidentally protects.
Therefore, the prior art has yet to be improved and developed.
Invention content
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, provides a kind of lack of fluorine of air-conditioners and protects
Maintaining method air conditioner device, it is intended to which solving lack of fluorine of air-conditioners guard method in the prior art needs to increase new hardware, of high cost and appearance
Easily there is the problem of accidentally protecting.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of lack of fluorine of air-conditioners guard method, wherein, the method includes：
Step A, when air conditioner, which is run, to freeze, air conditioner monitors inner disc temperature change in real time in the first predetermined amount of time, and
Judge current air conditioner whether in normal refrigerating state；
Step B, when judging that the air conditioner is in normal refrigerating state, then start to detect after first predetermined amount of time
Return air temperature and the difference of inner disc temperature, and compared with preset first range, the second range；When judging that the air conditioner is in
During improper refrigerating state, then scarce fluorine signal is reported, and start and lack fluorine protection operation；
Step C, when the difference of the return air temperature and inner disc temperature is in preset first range, then it represents that the air conditioner
Overload；When the difference of the return air temperature and inner disc temperature is in preset second range, then scarce fluorine signal is reported, and start
Lack fluorine protection operation.
The lack of fluorine of air-conditioners guard method, wherein, scarce fluorine signal is reported, and start in the step B and step C
Fluorine protection operation is lacked to further include later：
Step D, the scarce fluorine number of air conditioner is counted, and compared with preset frequency threshold value；
Step E, when the scarce fluorine number is equal to the frequency threshold value, then the air conditioner is controlled in preset second time period
It is automatic later to restore normal work；When the scarce fluorine number is more than the frequency threshold value, then need manually to think highly of the air-conditioning
It is new to start.
The lack of fluorine of air-conditioners guard method, wherein, the frequency threshold value is 1 time；The second time period is 3 minutes.
The lack of fluorine of air-conditioners guard method, wherein, it is further included after step F：
Step F, after occurring lacking fluorine signal and continuous operation preset third period, if no longer occurring reporting scarce fluorine signal,
Then the scarce fluorine number of statistics is reset, the third period is operation 15 minutes.
The lack of fluorine of air-conditioners guard method, wherein, the step A is specifically included：
Step A1, when air conditioner run freeze when, air conditioner obtained in the first predetermined amount of time current inner disc temperature and on
The inner disc temperature of one minute；
Step A2, according to current inner disc temperature and the inner disc temperature computation inner disc temperature gap of upper one minute, and with it is preset
First inner disc temperature range, the second inner disc temperature range compare；
Step A3, when the inner disc temperature gap meets the first inner disc temperature range, then illustrate that the air conditioner is in
Normal refrigerating state；When the temperature gap meets the second inner disc temperature range, then illustrate that the air conditioner is in non-
Normal refrigerating state.
The lack of fluorine of air-conditioners guard method, wherein, the first time period is set as：5 after the air conditioner booting
In minute, the first inner disc temperature range is more than or equal to 2 DEG C for inner disc temperature gap, and the second inner disc temperature range is interior
Disk temperature gap is less than 1 DEG C.
The lack of fluorine of air-conditioners guard method, wherein, step A is further included：
Step A4, when inner disc temperature gap is when between 1-2 DEG C, then whether on the rise the inner disc temperature gap is monitored；If
It is on the rise and be more than or equal to 2 DEG C in next 2 minutes inner disc temperature differences, then judge that the air conditioner is in normal refrigeration
State；To be determined as improper refrigerating state if no ascendant trend.
The lack of fluorine of air-conditioners guard method, wherein, it is specifically included in step B：
Step B1, when judging that the air conditioner is in normal refrigerating state, then continuous 1 point after first predetermined amount of time
Clock or it is 2 minutes continuous in detection return air temperature and inner disc temperature；Calculating return air temperature and the temperature gap of inner disc temperature, and with
Preset first range, the second range compare；
Step B2, when judging that the air conditioner is in improper refrigerating state, then scarce fluorine signal is directly reported, and by compressor
And inside and outside wind turbine stops.
The lack of fluorine of air-conditioners guard method, wherein, described first ranging from：The return air temperature detected in continuous 2 minutes
Degree and the temperature gap of inner disc temperature are less than 1 DEG C；Described second ranging from：The return air temperature detected in continuous 1 minute with it is interior
The temperature gap of disk temperature is more than 1 DEG C and less than 2 DEG C.
A kind of air conditioner, wherein, the air conditioner applies lack of fluorine of air-conditioners guard method described in any one of the above embodiments.
Beneficial effects of the present invention：The present invention can effectively prevent accidentally protecting, and protection is more accurate, and method is simple, nothing
New hardware facility need to be increased, program only need to be changed on the basis of existing hardware, cost more optimizes, and applicability is stronger.
Description of the drawings
Fig. 1 is the flow chart of the first preferred embodiment of lack of fluorine of air-conditioners guard method of the present invention.
Fig. 2 is the flow chart of the second preferred embodiment of lack of fluorine of air-conditioners guard method of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and does not have to
It is of the invention in limiting.
Therefore, the present invention provides a kind of lack of fluorine of air-conditioners guard method, as shown in Figure 1, the lack of fluorine of air-conditioners that Fig. 1 is the present invention is protected
The flow chart of the first preferred embodiment of maintaining method.The lack of fluorine of air-conditioners guard method includes the following steps：
Step S100, when air conditioner, which is run, to freeze, air conditioner monitors inner disc temperature change in real time in the first predetermined amount of time,
And judge current air conditioner whether in normal refrigerating state.
Preferably, the step S100 includes：
When air conditioner, which is run, to freeze, air conditioner obtains current inner disc temperature and upper one minute in the first predetermined amount of time
Inner disc temperature；
According to current inner disc temperature and the inner disc temperature computation inner disc temperature gap of upper one minute, and with preset first inner disc
Temperature range, the second inner disc temperature range compare；
When the inner disc temperature gap meets the first inner disc temperature range, then illustrate that the air conditioner is in normal refrigeration
State；When the temperature gap meets the second inner disc temperature range, then illustrate that the air conditioner is in improper refrigeration
State.
When it is implemented, the present invention obtains current inner disc temperature after air conditioner booting within 5 minutes after power-up
Degree and the inner disc temperature of upper one minute so as to the temperature difference by calculating inner disc temperature, judge to work as according to the variation of inner disc temperature
Whether preceding air conditioner is in normal refrigerating state.By the temperature difference of inner disc temperature and the first inner disc temperature range, the second inner disc temperature difference
Range compares.Specifically, heretofore described first inner disc temperature range is inner disc temperature gap（△T）More than or equal to 2 DEG C, institute
The second inner disc temperature range is stated as inner disc temperature gap（△T）Less than 1 DEG C.When the inner disc temperature gap（△T）More than or equal to 2
DEG C when, then illustrate that the air conditioner is in normal refrigerating state；When the temperature gap（△T）Less than 1 DEG C, then illustrate the sky
Device is adjusted to be in improper refrigerating state.
Preferably, when the inner disc temperature gap calculated（△T）When between 1-2 DEG C, then monitoring the inner disc temperature gap is
It is no on the rise；If it is on the rise and next 2 minutes inner disc temperature differences be more than or equal to 2 DEG C, judge the sky
Device is adjusted to be in normal refrigerating state；To be determined as improper refrigerating state if no ascendant trend, so as to more accurately right
The working condition of air conditioner is judged, avoids the occurrence of erroneous judgement.
Further, step S200, when judging that the air conditioner is in normal refrigerating state, then start to detect return air temperature
Degree and the difference of inner disc temperature, and compared with preset first range, the second range；When judge the air conditioner be in it is improper
During refrigerating state, then scarce fluorine signal is reported, and start and lack fluorine protection operation.
Preferably, the step S200 is specifically included：
When judging that the air conditioner is in normal refrigerating state, then the air conditioner is controlled in booting continuous 1 minute after five minutes
Or return air temperature and inner disc temperature are detected in continuous 2 minutes；
Return air temperature and the temperature gap of inner disc temperature are calculated, and compared with preset first range, the second range；
When inner disc temperature gap is in the second inner disc temperature range, then scarce fluorine signal is reported, and by compressor and interior exogenous wind
Machine stops.
Specifically, when judging that current air conditioner is in normal refrigerating state, then air conditioner is controlled to start at continuous 1 minute
Or return air temperature RT and inner disc temperature IPT is detected in continuous 2 minutes, and calculate the temperature of return air temperature RT and inner disc temperature IPT
Spend difference.Then, the temperature gap calculated and preset first range, the second range are compared, so as to judge to work as
Whether preceding air-conditioning lacks fluorine.Preferably, the present invention pre-sets first ranging from：The return air temperature that was detected in continuous 2 minutes with
The temperature gap of inner disc temperature is less than 1 DEG C；Described second ranging from：The return air temperature detected in continuous 1 minute and inner disc temperature
The temperature gap of degree is more than 1 DEG C and less than 2 DEG C.
And when inner disc temperature gap is in the second inner disc temperature range, i.e., when the temperature gap（△T）Less than 1 DEG C
When, then illustrate that current air conditioner lacks fluorine at this time, then directly report scarce fluorine signal, and control and stop compressor and inside and outside wind turbine
Only, it is protected with lack fluorine.From this, the present invention can detect refrigerating state in time after air conditioner is switched on, so as to
When judging to freeze abnormal, to start lack fluorine protection operation and close compressor and inside and outside wind turbine in time, be kept away so as to protect
Exempt from compressor of air conditioner to be burned out, extend the service life of compressor of air conditioner.
Further, step S300, when the difference of the return air temperature and inner disc temperature be in preset first range it
When interior, then it represents that the air conditioner overload；When the difference of the return air temperature and inner disc temperature is in preset second range,
Scarce fluorine signal is then reported, and starts and lacks fluorine protection operation.
Preferably, in the present invention described first ranging from：The return air temperature detected in continuous 2 minutes and inner disc temperature
Temperature gap be less than 1 DEG C；Described second ranging from：The return air temperature detected in continuous 1 minute and the temperature of inner disc temperature
Difference is more than 1 DEG C and less than 2 DEG C.When the temperature gap that return air temperature and inner disc temperature were detected in continuous 2 minutes meets first
In the range of when, then illustrate that current air conditioner is in overload protection state, without carrying out any operation, machine to be protected waited to restore i.e.
It can.And when detecting return air temperature in continuous 1 minute and the temperature gap of inner disc temperature meets in the range of second, then judge
Current air conditioner lacks fluorine, the air conditioner will start scarce fluorine protection operation.
Preferably, in lack of fluorine of air-conditioners guard method disclosed in this invention, when reporting scarce fluorine signal every time, air conditioner
Meeting programming count lacks fluorine number, and by scarce fluorine number compared with preset frequency threshold value, and the frequency threshold value is preferably 1 time.When
When the scarce fluorine number is equal to 1 time, then the air conditioner is controlled in preset second time period（3 minutes）It is automatic later to restore just
Often work；When the scarce fluorine number is more than 1 time, then do not restore automatically, need manually to restart the air conditioner.If again
Still occur lacking fluorine signal after startup, then must re-power.And when occurring lacking fluorine signal and the preset third of continuous operation
Between section（Operation 15 minutes）Afterwards, if no longer occurring reporting scarce fluorine signal, illustrate it is accidentally to protect, then it is the scarce fluorine number of statistics is clear
Zero.It can be seen that the present invention can effectively prevent accidentally protecting, protection is more accurate, and method is simple, is provided to the use of user
Convenience.
In order to more clearly illustrate technical scheme of the present invention, the present invention also provides lack of fluorine of air-conditioners guard methods second
The flow chart of preferred embodiment, as shown in Figure 2.Include the following steps：
Step 201 opens refrigeration, when being, performs step 202.
Whether step 202, booting develop 5min.When being, it is performed simultaneously step 205,206；When no, it is performed simultaneously step
Rapid 203 and 204.
Whether 1 DEG C of ＜ is when being by step 203, inner disc △ T, performs step 208；When no, return and perform step 202.
Step 204, inner disc △ T whether >=2 DEG C when being, be performed simultaneously step 205,206.
It detects whether to meet RT-IPT in step 205, continuous 2min<1 DEG C, when being, performs step 207.
It detects whether to meet 1 DEG C in step 206, continuous 1min<RT-IPT<2 DEG C, when being, perform step 208.
Step 207, overload protection do not need to act.
Step 208, display lack fluorine signal, stop compressor, inside and outside wind turbine.
Step 209 lacks fluorine number=1When being, then step 210 is performed；When no, then step 211 is performed.
Step 210,3min restore automatically.
Step 211, signal cannot restore automatically, it is necessary to press ON/OFF keys.
Based on above-described embodiment, the present invention also provides a kind of air conditioner, the air conditioner is using disclosed in this invention
Lack of fluorine of air-conditioners guard method.
In conclusion a kind of lack of fluorine of air-conditioners guard method provided by the invention and air conditioner, method include：When air conditioner is transported
During row refrigeration, air conditioner monitors inner disc temperature change in real time in the first predetermined amount of time, and judges whether current air conditioner is located
In normal refrigerating state；When judging that the air conditioner is in normal refrigerating state, then connect after first predetermined amount of time
Detection return air temperature and inner disc temperature in continuing 1 minute or being 2 minutes continuous；Calculate return air temperature and the temperature difference of inner disc temperature
Value, and compared with preset first range, the second range；When judging that the air conditioner is in improper refrigerating state, then on
Report lacks fluorine signal, and starts and lack fluorine protection operation；When the difference of the return air temperature and inner disc temperature is in preset first model
When enclosing, then it represents that the air conditioner overload；When the difference of the return air temperature and inner disc temperature is in preset second range,
Then report scarce fluorine signal, and dynamic scarce fluorine protection operation.The present invention can effectively prevent accidentally protecting, and protection is more accurate, and method
Simply, without increasing new hardware facility, program only need to be changed on the basis of existing hardware, cost more optimizes, applicability
It is stronger.
It should be understood that the application of the present invention is not limited to the above, it for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of lack of fluorine of air-conditioners guard method, which is characterized in that the method includes：
Step A, when air conditioner, which is run, to freeze, air conditioner monitors inner disc temperature change in real time in the first predetermined amount of time, and
Judge current air conditioner whether in normal refrigerating state；
Step B, when judging that the air conditioner is in normal refrigerating state, then start to detect after first predetermined amount of time
Return air temperature and the difference of inner disc temperature, and compared with preset first range, the second range；When judging that the air conditioner is in
During improper refrigerating state, then scarce fluorine signal is directly reported, and start and lack fluorine protection operation；
Step C, when the difference of the return air temperature and inner disc temperature is in preset first range, then it represents that the air conditioner
Overload；When the difference of the return air temperature and inner disc temperature is in preset second range, then scarce fluorine signal is reported, and start
Lack fluorine protection operation.
2. according to the lack of fluorine of air-conditioners guard method described in claim 1, which is characterized in that in the step B and step C
Scarce fluorine signal is reported, and starts to lack after fluorine protection operates and further include：
Step D, the scarce fluorine number of air conditioner is counted, and compared with preset frequency threshold value；
Step E, when the scarce fluorine number is equal to the frequency threshold value, then the air conditioner is controlled in preset second time period
It is automatic later to restore normal work；When the scarce fluorine number is more than the frequency threshold value, then need manually to think highly of the air-conditioning
It is new to start.
3. according to the lack of fluorine of air-conditioners guard method described in claim 2, which is characterized in that the frequency threshold value is 1 time；It is described
Second time period is 3 minutes.
4. according to the lack of fluorine of air-conditioners guard method described in claim 2, which is characterized in that further included after step F：
Step F, after occurring lacking fluorine signal and continuous operation preset third period, if no longer occurring reporting scarce fluorine signal,
Then the scarce fluorine number of statistics is reset, the third period is operation 15 minutes.
5. according to the lack of fluorine of air-conditioners guard method described in claim 1, which is characterized in that the step A is specifically included：
Step A1, when air conditioner run freeze when, air conditioner obtained in the first predetermined amount of time current inner disc temperature and on
The inner disc temperature of one minute；
Step A2, according to current inner disc temperature and the inner disc temperature computation inner disc temperature gap of upper one minute, and with it is preset
First inner disc temperature range, the second inner disc temperature range compare；
Step A3, when the inner disc temperature gap meets the first inner disc temperature range, then illustrate that the air conditioner is in
Normal refrigerating state；When the inner disc temperature gap meets the second inner disc temperature range, then illustrate at the air conditioner
In improper refrigerating state.
6. according to the lack of fluorine of air-conditioners guard method described in claim 5, which is characterized in that the first time period is set as：
Within 5 minutes after the air conditioner booting, the first inner disc temperature range is more than or equal to 2 DEG C for inner disc temperature gap, institute
It states the second inner disc temperature range and is less than 1 DEG C for inner disc temperature gap.
7. according to the lack of fluorine of air-conditioners guard method described in claim 6, which is characterized in that step A is further included：
Step A4, when inner disc temperature gap is when between 1-2 DEG C, then whether on the rise the inner disc temperature gap is monitored；If
It is on the rise and be more than or equal to 2 DEG C in next 2 minutes inner disc temperature differences, then judge that the air conditioner is in normal refrigeration
State；To be determined as improper refrigerating state if no ascendant trend.
8. according to the lack of fluorine of air-conditioners guard method described in claim 1, which is characterized in that specifically included in step B：
Step B1, when judging that the air conditioner is in normal refrigerating state, then control the air conditioner predetermined described first
After period continuous 1 minute or it is 2 minutes continuous in detection return air temperature and inner disc temperature；Calculate return air temperature and inner disc temperature
Temperature gap, and compared with preset first range, the second range；
Step B2, when judging that the air conditioner is in improper refrigerating state, then scarce fluorine signal is directly reported, and by compressor
And inside and outside wind turbine stops.
9. according to the lack of fluorine of air-conditioners guard method described in claim 1, which is characterized in that described first ranging from：Continuous 2
The return air temperature detected in minute and the temperature gap of inner disc temperature are less than 1 DEG C；Described second ranging from：In continuous 1 minute
The return air temperature of detection is more than 1 DEG C and less than 2 DEG C with the temperature gap of inner disc temperature.
A kind of 10. air conditioner, which is characterized in that any one of them air-conditioning of the air conditioner application the claims 1-9
Lack fluorine guard method.
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| CN201711473895.0A CN108131776B (en) | 2017-12-29 | 2017-12-29 | Air conditioner fluorine deficiency protection method and air conditioner |
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| CN201711473895.0A CN108131776B (en) | 2017-12-29 | 2017-12-29 | Air conditioner fluorine deficiency protection method and air conditioner |
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Cited By (2)
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| CN110398022A (en) * | 2019-08-02 | 2019-11-01 | 宁波奥克斯电气股份有限公司 | Air-conditioning overload protection judgment method, device and air conditioner |
| CN111121223A (en) * | 2019-12-31 | 2020-05-08 | Tcl空调器(中山)有限公司 | Fluorine-lacking protection method of air conditioner, air conditioner and storage medium |
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| CN104482625A (en) * | 2014-11-20 | 2015-04-01 | 珠海格力电器股份有限公司 | Method for judging whether variable-frequency air conditioner is lack of coolant |
| CN105066362A (en) * | 2015-08-24 | 2015-11-18 | Tcl空调器(中山)有限公司 | Air-conditioner refrigerant missing detection method and device |
| CN105928135A (en) * | 2016-04-19 | 2016-09-07 | 青岛海尔空调器有限总公司 | Method and device for judging refrigerant amount and refrigeration equipment |
| CN106568223A (en) * | 2016-10-25 | 2017-04-19 | 珠海格力电器股份有限公司 | Method and device for controlling refrigerant circulation abnormity of air conditioner as well as air conditioner thereof |
| CN107314519A (en) * | 2017-06-14 | 2017-11-03 | 海信科龙电器股份有限公司 | A kind of decision method and device of air-conditioner coolant leakage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110398022A (en) * | 2019-08-02 | 2019-11-01 | 宁波奥克斯电气股份有限公司 | Air-conditioning overload protection judgment method, device and air conditioner |
| CN111121223A (en) * | 2019-12-31 | 2020-05-08 | Tcl空调器(中山)有限公司 | Fluorine-lacking protection method of air conditioner, air conditioner and storage medium |
| CN111121223B (en) * | 2019-12-31 | 2022-03-11 | Tcl空调器(中山)有限公司 | Fluorine-lacking protection method of air conditioner, air conditioner and storage medium |
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