CN109028459A - Air-conditioner control method and air conditioner - Google Patents
Air-conditioner control method and air conditioner Download PDFInfo
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- CN109028459A CN109028459A CN201811056370.1A CN201811056370A CN109028459A CN 109028459 A CN109028459 A CN 109028459A CN 201811056370 A CN201811056370 A CN 201811056370A CN 109028459 A CN109028459 A CN 109028459A
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- air
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- compressor frequency
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- 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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
-
- 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
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention proposes a kind of air-conditioner control method and air conditioner.The air-conditioner control method, include the following steps: to detect compressor frequency and runs power, compare operation power and correspond to the predetermined power value of the compressor frequency, if operation power is less than the predetermined power value corresponding to the compressor frequency, output lacks refrigerant signal；Conversely, then air conditioner continues to run.The air conditioner can be realized above-mentioned air-conditioner control method.Air-conditioner control method and air conditioner of the present invention by detection compressor frequency and operation power, and make comparisons with the predetermined power value for corresponding to compressor frequency, judge whether to lack refrigerant, more accurately, effectively prevent the occurrence of reporting by mistake.
Description
Technical field
The invention belongs to air-conditioning technical field more particularly to a kind of air-conditioner control methods and air conditioner.
Background technique
At present air conditioner lacks fluorine protection control is usually detected by several control parameters to system, when meet wherein
Operating parameter when, prompt user report lack fluorine protect failure.
These parameters include the delivery temperature of system, suction temperature, the indoor heat exchanger air inlet/outlet temperature difference, outdoor heat exchanger into
The outlet air temperature difference, expansion valve opening etc..When system really scarce fluorine occurs, these parameters be may is that suitably；But also there is wrong report
A possibility that, for example some abnormal operation shut-off valves are not turned on, when temperature change, when low-frequency operation etc..
It will appear wrong report phenomenon when some abnormal operations, while if some control parameters need the long period can
If reaching setting value, when system really scarce fluorine occurs, needs the long period that can quote failure, influence the reliable of system
Property.
Summary of the invention
The present invention is directed to the technical issues of above-mentioned air conditioner lacks fluorine, proposes that one kind can accurately and effectively judge air conditioner
Whether the air-conditioner control method and air conditioner of fluorine are lacked.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of air-conditioner control method includes the following steps: to detect compressor frequency and runs power, compares operation function
Rate and the predetermined power value for corresponding to the compressor frequency, if operation power is less than the predetermined power corresponding to the compressor frequency
Value, then output lacks refrigerant signal, conversely, then air conditioner continues to run.
Preferably, further including following steps: comparing compressor frequency and preset compressor frequency values, if compressor frequency
Not less than preset compressor frequency values, then the number for lacking refrigerant signal is calculated.
Preferably, further including following steps: detection discharge superheat compares discharge superheat and preset first temperature
Value calculates the number for lacking refrigerant signal if discharge superheat is not less than the first temperature value.
Preferably, further including following steps: detection outdoor environment temperature and heat exchanger of outdoor unit temperature, counting chamber
Outer machine heat exchanger temperature and the difference of outdoor environment temperature are simultaneously made comparisons with preset temperature value, if heat exchanger of outdoor unit temperature
It is less than preset temperature value with the difference of outdoor environment temperature, then calculates the number for lacking refrigerant signal.
Preferably, further including following steps: when heating mode, if outdoor environment temperature and heat exchanger of outdoor unit temperature
Difference be less than preset second temperature value, then calculate and lack the number of refrigerant signal.
Preferably, further including following steps: when refrigeration mode, if heat exchanger of outdoor unit temperature and outdoor environment temperature
Difference be less than preset third temperature value, then calculate and lack the number of refrigerant signal.
Preferably, further including following steps: if the number for lacking refrigerant signal in preset dwell time is not less than
Preset stopping numerical value, then air conditioner is out of service.
Preferably, further including following steps: air conditioner starting after calculate runing time, when running between be equal to it is preset
When detection time, the step of executing detection compressor frequency and run power.
A kind of air conditioner, including reservoir and actuator, the reservoir have pre-set programs, and the pre-set programs are described
Actuator can be realized air-conditioner control method described in any one as above when executing.
Compared with prior art, the advantages and positive effects of the present invention are:
(1) air-conditioner control method of the present invention, by detection compressor frequency and operation power, and with it is corresponding
It makes comparisons in the predetermined power value of compressor frequency, judges whether to lack refrigerant, more accurately, effectively prevent wrong report situation
Occur；With reference to discharge superheat, the difference of heat exchanger of outdoor unit temperature and outdoor environment temperature, and it is pre- by setting
If compressor frequency value and the smallest detection time, the occurrence of effectively avoiding wrong report.
(2) above-mentioned air conditioner control may be implemented including there being the reservoir of pre-set programs in air conditioner of the present invention
Method processed makees ratio by detection compressor frequency and operation power, and with the predetermined power value for corresponding to compressor frequency
Compared with, judge whether lack fluorine, more accurately, effectively prevent wrong report the occurrence of.
Detailed description of the invention
Fig. 1 is the flow chart of the air condition of that present invention control method；
Fig. 2 is the compressor frequency and predetermined power value relational graph of the air condition of that present invention control method.
Specific embodiment
Hereinafter, a specific embodiment of the invention is further described in conjunction with attached drawing.
With reference to Fig. 1, the present invention proposes a kind of air-conditioner control method, include the following steps: detect compressor frequency and
Power is run, operation power is compared and corresponds to the predetermined power value of the compressor frequency, is somebody's turn to do if operation power is less than to correspond to
The predetermined power value of compressor frequency, then output lacks refrigerant signal；Conversely, then air conditioner continues to run.
Air conditioning control method of the present invention, by detection compressor frequency and operation power, and with correspond to
The predetermined power value of compressor frequency is made comparisons, and judges whether to lack refrigerant, more accurately, effectively prevents the hair of wrong report situation
It is raw.
As shown in Figure 1, air-conditioner control method of the present invention, includes the following steps:
S1, start to detect compressor frequency after starting and running to preset time and run power, and jump to step
Rapid S2, wherein preset time is preferably set in 0~30min, and different settings can be done according to air conditioner, and operation power can pass through
It is calculated after detecting the electric current and voltage of compressor.
If S2, compressor frequency are less than preset compressor frequency values, air conditioner is continued to run；If compressor frequency is greater than
Equal to preset compressor frequency values, then go to step S3；Wherein, preset compressor frequency values preferably between 0~90Hz,
Different settings can be done according to air conditioner, preset compressor frequency values are preset numerical value herein, are greater than compressor maneuverability
Minimum frequency on energy, if be less than compressor runnability on minimum frequency if air-conditioning shut down, if between the two after
Reforwarding row.
If S3, operation power are greater than predetermined power value, air conditioner is continued to run；If running power is less than predetermined power
Value, then output lacks refrigerant signal and the S4 that gos to step；Wherein, predetermined power value is when being tested by experiment to different frequency
Normally the operation power under refrigerant state and the operation power lacked under refrigerant state carry out verifying of knowing the real situation, in conjunction with compressor frequency
Compressor frequency-operation power curve when rate fits normal refrigerant and lacking refrigerant, so that different pressures be arranged according to curve
Predetermined power value under contracting unit frequency, with reference to Fig. 2, preferably linear relationship herein, A point is preset compressor frequency values in Fig. 2,
B point is maximum compression unit frequency, is arranged according to the difference of compressor, and the slope of oblique line shown in Fig. 2 is preferably between 0.1-1,
Different settings can be done according to air-conditioning.
S4, detection discharge superheat, if discharge superheat is less than preset first temperature value, air conditioner is continued to run；
If discharge superheat is more than or equal to the first temperature value, go to step S5；Wherein, discharge superheat is delivery temperature and condensation
The difference of temperature, the first temperature value are preset temperature, herein the numerical value preferably between 10~50 °, can be according to air conditioner
Model difference does different settings.
S5, detection outdoor environment temperature and heat exchanger of outdoor unit temperature, if heating mode, then operating procedure S51, if
For refrigeration mode, then operating procedure S52；
If the difference of S51, outdoor environment temperature and heat exchanger of outdoor unit temperature is more than or equal to preset second temperature value,
Then air conditioner continues to run；If the difference of outdoor environment temperature and heat exchanger of outdoor unit temperature is greater than preset second temperature
Value, then go to step S6；Wherein, second temperature value is preset temperature, can be done according to the model difference of air conditioner different
Setting；
If the difference of S52, heat exchanger of outdoor unit temperature and outdoor environment temperature are more than or equal to preset third temperature value,
Then air conditioner continues to run；If heat exchanger of outdoor unit temperature and the difference of outdoor environment temperature are less than preset third temperature
Value, then go to step S6；Wherein, third temperature value is preset temperature, can do different set according to the model difference of air-conditioning
It sets；
Wherein, second temperature value and third temperature value are preset temperature, herein the numerical value preferably between 0~10 °,
Different settings can be done according to air conditioner.
S6, it calculates the number of output signal in dwell time and makes comparisons with preset stopping numerical value, if when stopping
The number of interior output signal reaches stopping numerical value, then air conditioner is out of service, wherein dwell time is pre- with stopping numerical value
If parameter, dwell time is preferably 1 hour herein, stop numerical value be preferably 2~5 times.
It should be noted that the sequence of step S2, S3, S4, S5 are alterable, as long as meeting following condition simultaneously can determine whether
Lack refrigerant signal to lack refrigerant and exporting, lacks the number of refrigerant signal to calculate output and make ratio with numerical value is stopped
Compared with, it is out of service if reaching stopping numerical value in dwell time, and be unsatisfactory for following any one air conditioner and continue to run:
1) operation power is less than the predetermined power value corresponded under the compressor frequency；
2) compressor frequency is greater than preset compressor frequency；
3) runing time is greater than preset time；
4) discharge superheat is greater than preset first temperature value；
5) when heating, the difference of outdoor environment temperature and heat exchanger of outdoor unit temperature is less than preset second temperature value,
When refrigeration, the difference of heat exchanger of outdoor unit temperature and outdoor environment temperature is less than preset third temperature value.
In addition, because lack fluorine air conditioner autostop after, can next time start air conditioner after run again above-mentioned steps with
It again determines whether to lack refrigerant.
Air-conditioner control method of the present invention, by detection compressor frequency and operation power, and with it is corresponding
It makes comparisons in the predetermined power value of compressor frequency, with reference to discharge superheat, heat exchanger of outdoor unit temperature and outdoor ring
The difference of border temperature, and by setting preset compressor frequency and the smallest detection time, effectively avoid wrong report feelings
The generation of condition.
The present invention also proposes that a kind of air conditioner, including reservoir and actuator, the reservoir have pre-set programs, this is pre-
If program can be realized above-mentioned air-conditioner control method when being executed by the actuator.
Air conditioner of the present invention, including above-mentioned air-conditioner control method pass through detection compressor frequency and operation
Power, and make comparisons with the predetermined power value for corresponding to compressor frequency, judge whether to lack refrigerant, more accurately, effectively keep away
The occurrence of having exempted from wrong report.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but without departing from the technical solutions of the present invention, according to the technical essence of the invention
Any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the protection scope of technical solution of the present invention.
Claims (9)
1. a kind of air-conditioner control method, which comprises the steps of: detection compressor frequency and operation power,
Compare operation power and correspond to the predetermined power value of the compressor frequency, if operation power, which is less than, corresponds to the compressor frequency
Predetermined power value, then output lack refrigerant signal, conversely, then air conditioner continues to run.
2. air-conditioner control method according to claim 1, which is characterized in that further include following steps: comparing compressor
Frequency and preset compressor frequency values, if compressor frequency is not less than preset compressor frequency values, calculating lacks refrigerant signal
Number.
3. air-conditioner control method according to claim 1, which is characterized in that further include following steps: detection was vented
Temperature compares discharge superheat and preset first temperature value, if discharge superheat is not less than the first temperature value, calculating lacks
The number of refrigerant signal.
4. air-conditioner control method according to claim 1, which is characterized in that further include following steps: sensing chamber's outer ring
Border temperature and heat exchanger of outdoor unit temperature, calculate the difference of outdoor unit heat exchanger temperature and outdoor environment temperature and with it is pre-
If temperature value is made comparisons, if heat exchanger of outdoor unit temperature and the difference of outdoor environment temperature are less than preset temperature value, calculate
Lack the number of refrigerant signal.
5. air-conditioner control method according to claim 4, which is characterized in that further include following steps: when heating mode,
If the difference of outdoor environment temperature and heat exchanger of outdoor unit temperature is less than preset second temperature value, calculating lacks refrigerant letter
Number number.
6. air-conditioner control method according to claim 4, which is characterized in that further include following steps: when refrigeration mode,
If heat exchanger of outdoor unit temperature and the difference of outdoor environment temperature are less than preset third temperature value, calculating lacks refrigerant letter
Number number.
7. according to air-conditioner control method described in claim any one of 2-6, which is characterized in that further include following steps:
If lacking the number of refrigerant signal in preset dwell time not less than preset stopping numerical value, air conditioner is out of service.
8. air-conditioner control method according to claim 1, which is characterized in that further include following steps: air conditioner starting
After calculate runing time, when running between be equal to preset detection time when, execute detection compressor frequency and operation power
The step of.
9. a kind of air conditioner, which is characterized in that including reservoir and actuator, the reservoir has pre-set programs, this is default
Program is can be realized when being executed by the actuator such as the described in any item air-conditioner control methods of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056370.1A CN109028459A (en) | 2018-09-11 | 2018-09-11 | Air-conditioner control method and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056370.1A CN109028459A (en) | 2018-09-11 | 2018-09-11 | Air-conditioner control method and air conditioner |
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| CN109028459A true CN109028459A (en) | 2018-12-18 |
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| CN201811056370.1A Pending CN109028459A (en) | 2018-09-11 | 2018-09-11 | Air-conditioner control method and air conditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513824A (en) * | 2019-09-05 | 2019-11-29 | 宁波奥克斯电气股份有限公司 | A kind of convertible frequency air-conditioner lacks control method, device and the air conditioner of fluorine protection |
| CN111023430A (en) * | 2019-12-31 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Compressor starting control method and device and air conditioner |
| CN115200161A (en) * | 2022-06-23 | 2022-10-18 | 珠海格力电器股份有限公司 | Air conditioner refrigerant detection method, system and detection equipment |
| CN115899947A (en) * | 2022-06-21 | 2023-04-04 | 珠海格力电器股份有限公司 | Method and device for detecting content of refrigerant in air conditioner and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110513824A (en) * | 2019-09-05 | 2019-11-29 | 宁波奥克斯电气股份有限公司 | A kind of convertible frequency air-conditioner lacks control method, device and the air conditioner of fluorine protection |
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| CN115899947A (en) * | 2022-06-21 | 2023-04-04 | 珠海格力电器股份有限公司 | Method and device for detecting content of refrigerant in air conditioner and storage medium |
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| CN115200161B (en) * | 2022-06-23 | 2024-05-10 | 珠海格力电器股份有限公司 | Air conditioner refrigerant detection method, system and detection equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 266000 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant after: Hisense (Shandong) Air-conditioning Co., Ltd. Address before: 266000 Haixin Road, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant before: Hisense (Shandong) Air-conditioning Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181218 |