CN108592330A - Air-conditioning current protection method and air-conditioning - Google Patents
Air-conditioning current protection method and air-conditioning Download PDFInfo
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- CN108592330A CN108592330A CN201810404402.6A CN201810404402A CN108592330A CN 108592330 A CN108592330 A CN 108592330A CN 201810404402 A CN201810404402 A CN 201810404402A CN 108592330 A CN108592330 A CN 108592330A
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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
- F24F11/62—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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- 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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- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses air-conditioning current protection methods, specifically comprise the following steps：After air-conditioning booting operation, refrigeration mode/heating mode is determined whether；Detect environment temperature, input voltage and operating current；According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, judge whether operating current reaches the current protection value to match with the environment temperature section and input voltage section；It controls compressor and executes following at least one operation to realize current protection：Frequency no longer rising/frequency declines a preset value FDrop/ control compressor shutdown is simultaneously turned back on after preset downtime.For the present invention according to environment temperature and input voltage as Rule of judgment, disjunction protection is more rationally and careful, improves the stability of current control, reduces operation risk, improve comfort, the performance of air conditioning performance is effectively ensured.
Description
Technical field
The invention belongs to air-conditioning technical fields, and in particular to air-conditioning current protection method and air-conditioning.
Background technology
Common transducer air conditioning current protection control is mainly according to operation of air conditioner reliability requirement and air-conditioning sheet at present
Body load of heat carries out Discrete control Protection parameters, and there is no problem for this protected mode itself, but problem is to be segmented
Control is excessively coarse, for example is controlled according to temperature section, as soon as it is a Protection parameters below certain temperature, more than this temperature
It is another Protection parameters, the performance of the discontinuity meeting extreme influence air conditioning performance of this control mode makes compressor original
It can continue in the case of keeping operating in a high frequency due to just causing electric current to protect limit frequency to rise in advance across piecewise interval
With the performance of ability, and this discontinuous simple coarse sectionalised protection control, temperature be in segmentation critical zone in, very
It is easy to bring the increasing of current protection to fluctuate due to temperature fluctuation, leads to the irregular operation of system, brought very not to complete machine
Reliable risk.
Convertible frequency air-conditioner current protection mechanism is as shown in Figure 1, former convertible frequency air-conditioner main control MCU is examined according only to electric current in the prior art
It surveys single parameter to be judged, compressor frequency variation is then controlled when reaching corresponding current protection value.
Convertible frequency air-conditioner current protection flow is as shown in Fig. 2, according to refrigeration, heating after former convertible frequency air-conditioner booting in the prior art
After mode decision, fixed current protection parameter just is provided with to corresponding modes, corresponding pressure is carried out when reaching protective current
Contracting machine frequency reducing acts, otherwise with regard to normal operation.
Invention content
For the deficiency in the presence of the prior art, the present invention provides a kind of according to environment temperature and input voltage conduct
Rule of judgment, disjunction protect stability more reasonable and careful, that improve current control, reduce operation risk, improve and make
With comfort, the air-conditioning current protection method and air-conditioning of the performance that air conditioning performance is effectively ensured.
Air-conditioning current protection method, including preset multiple environment temperature sections, multiple input voltage range and electric current
Protection parameters, the current protection parameter includes one group of current protection value, wherein each current protection value and environment temperature area
Between and input voltage section one of which combination it is corresponding；Specifically comprise the following steps：
S100：After air-conditioning booting operation, operational mode is judged：It is held when pattern is refrigeration mode/heating mode
Row step S110；
S110：Detect environment temperature, input voltage and operating current；
S120：According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, sentence
Whether disconnected operating current reaches the current protection value to match with the environment temperature section and input voltage section, if reaching
Execute step S130；The compressor normal operation if not up to, returns to step S110；
S130：Control compressor：Frequency no longer rising/frequency declines a preset value FDrop/ control compressor shutdown and
It is turned back on after preset downtime, returns to step S110.
Air-conditioning current protection method, including preset multiple environment temperature sections, multiple input voltage range and electric current
Protection parameters, the current protection parameter includes the first current protection value and each one group of the second current protection value, wherein each the
One, the second current protection value is all combined with the one of which in environment temperature section and input voltage section corresponding；It specifically includes
Following steps：
S200：After air-conditioning booting operation, operational mode is judged：It is held when pattern is refrigeration mode/heating mode
Row step S210；
S210：Detect environment temperature, input voltage and operating current；
S220：According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, sentence
Whether disconnected operating current reaches the first current protection value to match with the environment temperature section and input voltage section, if reaching
To S230 is thened follow the steps, the compressor normal operation if not up to returns to step S210；
S230：Judge whether operating current reaches second to match with the environment temperature section and input voltage section
Current protection value thens follow the steps S240 if reaching, if not up to thening follow the steps S250；
S240：It controls compressor frequency and declines a preset value FDrop, return to step S210；
S250：Control compressor frequency no longer rises, and returns to step S210.
Air-conditioning current protection method, including preset multiple environment temperature sections, multiple input voltage range and electric current
Protection parameters, the current protection parameter includes the first current protection value and each one group of third current protection value, wherein each the
One, third current protection value is all combined with the one of which in environment temperature section and input voltage section corresponding；It specifically includes
Following steps：
S300：After air-conditioning booting operation, operational mode is judged：It is held when pattern is refrigeration mode/heating mode
Row step S310；
S310：Detect environment temperature, input voltage and operating current；
S320：According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, sentence
Whether disconnected operating current reaches the first current protection value to match with the environment temperature section and input voltage section, if reaching
To S330 is thened follow the steps, the compressor normal operation if not up to returns to step S310；
S330：Judge whether operating current reaches the third to match with the environment temperature section and input voltage section
Current protection value thens follow the steps S340 if reaching, if not up to thening follow the steps S350；
S340：Compressor shutdown is controlled, is turned back on after preset downtime, returns to step S310；
S350：Control compressor frequency no longer rises, and returns to step S310.
Air-conditioning current protection method, including preset multiple environment temperature sections, multiple input voltage range and electric current
Protection parameters, the current protection parameter includes the second current protection value and each one group of third current protection value, wherein each the
Two, third current protection value is all combined with the one of which in environment temperature section and input voltage section corresponding；It specifically includes
Following steps：
S400：After air-conditioning booting operation, operational mode is judged：It is held when pattern is refrigeration mode/heating mode
Row step S410；
S410：Detect environment temperature, input voltage and operating current；
S420：According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, sentence
Whether disconnected operating current reaches the second current protection value to match with the environment temperature section and input voltage section, if reaching
To S430 is thened follow the steps, the compressor normal operation if not up to returns to step S410；
S430：Judge whether operating current reaches the third to match with the environment temperature section and input voltage section
Current protection value thens follow the steps S440 if reaching, if not up to thening follow the steps S450；
S440：Compressor shutdown is controlled, is turned back on after preset downtime, returns to step S410；
S450：It controls compressor frequency and declines a preset value FDrop, return to step S410.
Air-conditioning current protection method, including preset multiple environment temperature sections, multiple input voltage range and electric current
Protection parameters, the current protection parameter include that the first current protection value, the second current protection value and third current protection value are each
One group, wherein the one of which of each first, second, third current protection value and environment temperature section and input voltage section
It combines corresponding；Specifically comprise the following steps：
S500：After air-conditioning booting operation, operational mode is judged：It is held when pattern is refrigeration mode/heating mode
Row step S510；
S510：Detect environment temperature, input voltage and operating current；
S520：According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, sentence
Whether disconnected operating current reaches the first current protection value to match with the environment temperature section and input voltage section, if reaching
To S530 is thened follow the steps, the compressor normal operation if not up to returns to step S510；
S530：Judge whether operating current reaches second to match with the environment temperature section and input voltage section
Current protection value thens follow the steps S540 if reaching, if not up to thening follow the steps S550；
S540：Judge whether operating current reaches the third to match with the environment temperature section and input voltage section
Current protection value thens follow the steps S560 if reaching, if not up to thening follow the steps S570；
S550：Control compressor frequency no longer rises, and returns to step S510；
S560：Compressor shutdown is controlled, is turned back on after preset downtime, returns to step S510；
S570：It controls compressor frequency and declines a preset value FDrop, return to step S510.
Air-conditioning, including compressor further include：
Environment temperature sensor：For detecting environment temperature, data-signal is generated；
Voltage sensor：For detecting input voltage, data-signal is generated；
Current sensor：For detecting operating current, data-signal is generated；
Storage device：Parameter and current protection for storing preset environment temperature section and input voltage section are joined
Number；
Control device, including decision circuitry and compressor Control Cprant, wherein：
Decision circuitry：It is protected for reading environment temperature range, the parameter in input voltage section and electric current from storage device
Protect parameter；For receiving data-signal from environment temperature sensor, voltage sensor, current sensor respectively；Judge detection
The input voltage section that the environment temperature section and input voltage that environment temperature is fallen into are fallen into is found out and the environment temperature area
Between and the current protection parameter that matches of input voltage section；The operating current of the current protection parameter and detection is done into ratio
Compared with if the operating current is not less than the current protection parameter, triggering compressor corresponding with the current protection parameter
Control circuit；The current protection parameter includes at least one of the first, second current protection value；
At least one of compressor Control Cprant, including first control circuit, second control circuit, wherein：
First control circuit：The corresponding first current protection value, no longer rises for controlling compressor frequency；
Second control circuit：The corresponding second current protection value declines a preset value for controlling compressor frequency
FDrop。
Further, the current protection parameter further includes third current protection value, and the compressor Control Cprant also wraps
It includes：
Timer：For carrying out shutdown timing according to preset downtime；
Third control circuit：The corresponding third current protection value, for controlling compressor shutdown and triggering timer,
Compressor booting is controlled after the completion of timing.
Air-conditioning, including compressor further include：
Environment temperature sensor：For detecting environment temperature, data-signal is generated；
Voltage sensor：For detecting input voltage, data-signal is generated；
Current sensor：For detecting operating current, data-signal is generated；
Storage device：Parameter and current protection for storing preset environment temperature section and input voltage section are joined
Number；
Control device, including decision circuitry and compressor Control Cprant, wherein：
Decision circuitry：It is protected for reading environment temperature range, the parameter in input voltage section and electric current from storage device
Protect parameter；For receiving data-signal from environment temperature sensor, voltage sensor, current sensor respectively；Judge detection
The input voltage section that the environment temperature section and input voltage that environment temperature is fallen into are fallen into is found out and the environment temperature area
Between and the current protection parameter that matches of input voltage section；The operating current of the current protection parameter and detection is done into ratio
Compared with if the operating current is not less than the current protection parameter, triggering compressor corresponding with the current protection parameter
Control circuit；The current protection parameter includes third current protection value；
Compressor Control Cprant, including：
Third control circuit：The corresponding third current protection value, for controlling compressor shutdown and triggering timer,
Compressor booting is controlled after the completion of timing；
Timer：For carrying out shutdown timing according to preset downtime.
Particularly, the FDropFor 5~10Hz.
Particularly, the preset downtime is 2~3 minutes.
If the environment temperature section has A, the input voltage section has B, then can set A × B the first electric currents and protect
Shield value.The FDropIt, can be according to progress adaptability setting the case where specific compressor for the value that preset frequency declines.The control
MCU or PLC etc. may be used in device.
It is aforementioned it is all include the second current protection value method or air-conditioning in, FDrop5~10Hz can be taken.The FDropValue
Relatively rough influence air conditioning performance is then controlled very much greatly to play, it is too small, compressor frequency adjustment may be caused too frequent, improve energy
Consumption.
In aforementioned all methods or air-conditioning including third current protection value, in order to balance refrigerant pressure, described is pre-
If downtime can be set as 2~3 minutes.
Compared with the prior art, the present invention has the advantages that：
1, it is used as the control condition of selection current protection parameter by environment temperature and input voltage value, relative to existing
Simple in technology selects current protection parameter according to temperature, and sectionalised protection control is more reasonable and careful, reduces individually
Control condition generates the unstability of current control caused by fluctuation, will not allow compressor because just across piecewise interval and
Temperature fluctuation and big influence of fluctuations is brought to current protection；
2, Multistage Control is carried out according to multistage current protection parameter by using a variety of different compressor control modes,
The multiple control modes realize that control is more flexible, utmostly reduces the influence to air conditioning performance using progressive mode,
The performance of air conditioning performance is effectively ensured on the basis of protective current.
Description of the drawings
Fig. 1 is air-conditioning current protection structure chart in the prior art；
Fig. 2 is air-conditioning current protection flow chart in the prior art；
Fig. 3 is air-conditioning current protection method level-one control flow chart in the present invention；
Fig. 4 is air-conditioning current protection method two-step evolution flow chart in the present invention；
Fig. 5 is air-conditioning current protection method three class control flow chart in the present invention；
Fig. 6 is the structural schematic diagram of air-conditioning in the present invention.
Specific implementation mode
In order to which the technical means, creative features, achievable purpose and effectiveness for making invention realize are easy to understand, with reference to
It is specifically illustrating, the present invention is further explained.
Assuming that three kinds of overcurrent protection schemes that the first, second, third current protection value represents are respectively I1, I2, I3, by this
Three kinds of schemes combine and can realize the kinds of schemes such as I1I2, I2I3, I1I3, I1I2I3.Tri- kinds of schemes of I1, I2, I3 are according to excellent
First grade is taken second place in progressive relationship, the highest priority of judgement and the execution of I1, I2, and the priority of I3 is minimum.Enumerate embodiment
It is as follows：
Embodiment of the method 1：(corresponding I1)
Air-conditioning current protection method, as shown in figure 3, including preset multiple environment temperature areas corresponding to refrigeration mode
Between, multiple input voltage range and current protection parameter, the current protection parameter includes one group of first current protection value,
In each first current protection value combine and match with the one of which in environment temperature section and input voltage section.Specific packet
Include following steps：
S100：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is refrigeration mode
S110；
S110：Detect environment temperature, input voltage and operating current；
S120：According to environment temperature section corresponding with the environment temperature and input voltage and input in cooling mode
Voltage range, judges whether operating current reaches the first electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S130 if reaching；The compressor normal operation if not up to, returns to step S110；
S130：Control compressor：Frequency no longer rises, and executes step S110.
Embodiment of the method 2：(corresponding I2)
Air-conditioning current protection method, as shown in figure 3, including preset multiple environment temperature areas corresponding to heating mode
Between, multiple input voltage range and current protection parameter, the current protection parameter includes one group of second current protection value,
In each second current protection value combine and match with the one of which in environment temperature section and input voltage section.Specific packet
Include following steps：
S100：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is heating mode
S110；
S110：Detect environment temperature, input voltage and operating current；
S120：According to environment temperature section corresponding with the environment temperature and input voltage and input in a heating mode
Voltage range, judges whether operating current reaches the second electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S130 if reaching；The compressor normal operation if not up to, returns to step S110；
S130：Control compressor：Frequency no longer rises, and executes step S110.
Embodiment of the method 3：(corresponding I3)
Air-conditioning current protection method, as shown in figure 3, including preset multiple environment temperature areas corresponding to refrigeration mode
Between, multiple input voltage range and current protection parameter, the current protection parameter includes one group of third current protection value,
In each third current protection value combine and match with the one of which in environment temperature section and input voltage section.Specific packet
Include following steps：
S100：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is refrigeration mode
S110；
S110：Detect environment temperature, input voltage and operating current；
S120：According to environment temperature section corresponding with the environment temperature and input voltage and input in cooling mode
Voltage range, judges whether operating current reaches the third electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S130 if reaching；The compressor normal operation if not up to, returns to step S110；
S130：Compressor shutdown is controlled, is turned back on after preset downtime, step S110 is executed.
Embodiment of the method 4：(corresponding I1I2)
Air-conditioning current protection method, as shown in figure 4, including preset multiple environment temperature areas corresponding to refrigeration mode
Between, multiple input voltage range and current protection parameter, the current protection parameter includes the first current protection value and second
Each one group of current protection value, wherein each first, second current protection value and environment temperature section and input voltage section
One of which combination is corresponding；Specifically comprise the following steps：
S200：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is refrigeration mode
S210；
S210：Detect environment temperature, input voltage and operating current；
S220：According to environment temperature section corresponding with the environment temperature and input voltage and input in cooling mode
Voltage range, judges whether operating current reaches the first electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S230 if reaching, if not up to compressor normal operation, returns to step S210；
S230：Judge whether operating current reaches second to match with the environment temperature section and input voltage section
Current protection value thens follow the steps S240 if reaching, if not up to thening follow the steps S250；
S240：It controls compressor frequency and declines a preset value FDrop, return to step S210；
S250：Control compressor frequency no longer rises, and returns to step S210.
Embodiment of the method 5：(corresponding I1I3)
Air-conditioning current protection method, as shown in figure 4, including preset multiple environment temperature areas corresponding to heating mode
Between, multiple input voltage range and current protection parameter, the current protection parameter includes the first current protection value and third
Each one group of current protection value, wherein each first, third current protection value and environment temperature section and input voltage section
One of which combination is corresponding；Specifically comprise the following steps：
S300：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is heating mode
S310；
S310：Detect environment temperature, input voltage and operating current；
S320：According to environment temperature section corresponding with the environment temperature and input voltage and input in a heating mode
Voltage range, judges whether operating current reaches the first electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S330 if reaching, if not up to compressor normal operation, returns to step S310；
S330：Judge whether operating current reaches the third to match with the environment temperature section and input voltage section
Current protection value thens follow the steps S340 if reaching, if not up to thening follow the steps S350；
S340：Compressor shutdown is controlled, is turned back on after preset downtime, returns to step S310；
S350：Control compressor frequency no longer rises, and returns to step S310.
Embodiment of the method 6：(corresponding I2I3)
Air-conditioning current protection method, as shown in figure 4, including preset multiple environment temperature areas corresponding to refrigeration mode
Between, multiple input voltage range and current protection parameter, the current protection parameter includes the second current protection value and third
Each one group of current protection value, wherein second, third each current protection value and environment temperature section and input voltage section
One of which combination is corresponding；Specifically comprise the following steps：
S400：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is refrigeration mode
S410；
S410：Detect environment temperature, input voltage and operating current；
S420：According to environment temperature section corresponding with the environment temperature and input voltage and input in cooling mode
Voltage range, judges whether operating current reaches the second electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S430 if reaching, if not up to compressor normal operation, returns to step S410；
S430：Judge whether operating current reaches the third to match with the environment temperature section and input voltage section
Current protection value thens follow the steps S440 if reaching, if not up to thening follow the steps S450；
S440：Compressor shutdown is controlled, is turned back on after preset downtime, returns to step S410；
S450：It controls compressor frequency and declines a preset value FDrop, return to step S410.
Embodiment of the method 7：(corresponding I1I2I3)
Air-conditioning current protection method, as shown in figure 5, including preset multiple environment temperature areas corresponding to heating mode
Between, multiple input voltage range and current protection parameter, the current protection parameter includes the first current protection value, the second electricity
Protection value and each one group of third current protection value are flowed, wherein each first, second, third current protection value and environment temperature area
Between and input voltage section one of which combination it is corresponding；Specifically comprise the following steps：
S500：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is heating mode
S510；
S510：Detect environment temperature, input voltage and operating current；
S520：According to environment temperature section corresponding with the environment temperature and input voltage and input in a heating mode
Voltage range, judges whether operating current reaches the first electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S530 if reaching, if not up to compressor normal operation, returns to step S510；
S530：Judge whether operating current reaches second to match with the environment temperature section and input voltage section
Current protection value thens follow the steps S540 if reaching, if not up to thening follow the steps S550；
S540：Judge whether operating current reaches the third to match with the environment temperature section and input voltage section
Current protection value thens follow the steps S560 if reaching, if not up to thening follow the steps S570；
S550：Control compressor frequency no longer rises, and returns to step S510；
S560：Compressor shutdown is controlled, is turned back on after preset downtime, returns to step S510；
S570：It controls compressor frequency and declines a preset value FDrop, return to step S510.
Device embodiment 1：
Air-conditioning, as shown in fig. 6, include compressor, further include：
Environment temperature sensor：For detecting environment temperature, data-signal is generated；
Voltage sensor：For detecting input voltage, data-signal is generated；
Current sensor：For detecting operating current, data-signal is generated；
Storage device：Parameter and current protection for storing preset environment temperature section and input voltage section are joined
Number；
Control device, including decision circuitry and compressor Control Cprant, wherein：
Decision circuitry：It is protected for reading environment temperature range, the parameter in input voltage section and electric current from storage device
Protect parameter；For receiving data-signal from environment temperature sensor, voltage sensor, current sensor respectively；Judge detection
The input voltage section that the environment temperature section and input voltage that environment temperature is fallen into are fallen into is found out and the environment temperature area
Between and the current protection parameter that matches of input voltage section；The operating current of the current protection parameter and detection is done into ratio
Compared with if the operating current is not less than the current protection parameter, triggering compressor corresponding with the current protection parameter
Control circuit；The current protection parameter includes the first current protection value；
Compressor Control Cprant, including first control circuit, wherein：
First control circuit：The corresponding first current protection value, no longer rises for controlling compressor frequency.
Device embodiment 2：
Air-conditioning, as shown in fig. 6, include compressor, further include：
Environment temperature sensor：For detecting environment temperature, data-signal is generated；
Voltage sensor：For detecting input voltage, data-signal is generated；
Current sensor：For detecting operating current, data-signal is generated；
Storage device：Parameter and current protection for storing preset environment temperature section and input voltage section are joined
Number；
Control device, including decision circuitry and compressor Control Cprant, wherein：
Decision circuitry：It is protected for reading environment temperature range, the parameter in input voltage section and electric current from storage device
Protect parameter；For receiving data-signal from environment temperature sensor, voltage sensor, current sensor respectively；Judge detection
The input voltage section that the environment temperature section and input voltage that environment temperature is fallen into are fallen into is found out and the environment temperature area
Between and the current protection parameter that matches of input voltage section；The operating current of the current protection parameter and detection is done into ratio
Compared with if the operating current is not less than the current protection parameter, triggering compressor corresponding with the current protection parameter
Control circuit；The current protection parameter includes the second current protection value；
Compressor Control Cprant, including second control circuit, wherein：
Second control circuit：The corresponding second current protection value declines a preset value for controlling compressor frequency
FDrop。
Device embodiment 3：
Air-conditioning, as shown in fig. 6, include compressor, further include：
Environment temperature sensor：For detecting environment temperature, data-signal is generated；
Voltage sensor：For detecting input voltage, data-signal is generated；
Current sensor：For detecting operating current, data-signal is generated；
Storage device：Parameter and current protection for storing preset environment temperature section and input voltage section are joined
Number；
Control device, including decision circuitry and compressor Control Cprant, wherein：
Decision circuitry：It is protected for reading environment temperature range, the parameter in input voltage section and electric current from storage device
Protect parameter；For receiving data-signal from environment temperature sensor, voltage sensor, current sensor respectively；Judge detection
The input voltage section that the environment temperature section and input voltage that environment temperature is fallen into are fallen into is found out and the environment temperature area
Between and the current protection parameter that matches of input voltage section；The operating current of the current protection parameter and detection is done into ratio
Compared with if the operating current is not less than the current protection parameter, triggering compressor corresponding with the current protection parameter
Control circuit；The current protection parameter includes the first current protection value and the second current protection value；
Compressor Control Cprant, including first control circuit and second control circuit, wherein：
First control circuit：The corresponding first current protection value, no longer rises for controlling compressor frequency；
Second control circuit：The corresponding second current protection value declines a preset value for controlling compressor frequency
FDrop。
Device embodiment 4：
On the basis of aforementioned device Examples 1 to 3 any scheme, the current protection parameter further includes third electric current
Protection value, the air-conditioning further include：
Timer：For carrying out shutdown timing according to preset downtime；
The compressor Control Cprant further includes：
Third control circuit：The corresponding third current protection value, for controlling compressor shutdown and triggering timer,
Compressor booting is controlled after the completion of timing.
Device embodiment 5：
Air-conditioning, as shown in fig. 6, include compressor, further include：
Environment temperature sensor：For detecting environment temperature, data-signal is generated；
Voltage sensor：For detecting input voltage, data-signal is generated；
Current sensor：For detecting operating current, data-signal is generated；
Storage device：Parameter and current protection for storing preset environment temperature section and input voltage section are joined
Number；
Control device, including decision circuitry and compressor Control Cprant, wherein：
Decision circuitry：It is protected for reading environment temperature range, the parameter in input voltage section and electric current from storage device
Protect parameter；For receiving data-signal from environment temperature sensor, voltage sensor, current sensor respectively；Judge detection
The input voltage section that the environment temperature section and input voltage that environment temperature is fallen into are fallen into is found out and the environment temperature area
Between and the current protection parameter that matches of input voltage section；The operating current of the current protection parameter and detection is done into ratio
Compared with if the operating current is not less than the current protection parameter, triggering compressor corresponding with the current protection parameter
Control circuit；The current protection parameter includes third current protection value；
Compressor Control Cprant, including：
Third control circuit：The corresponding third current protection value, for controlling compressor shutdown and triggering timer,
Compressor booting is controlled after the completion of timing；
Timer：For carrying out shutdown timing according to preset downtime.
Preset downtime described in above example can be set as 2~3 minutes, to balance refrigerant pressure.
According to above example, current protection parameter can further be selected, for example, it is in refrigeration mode when,
Specific example such as the following table 1 can be listed：
Table 1
Very careful protection can be carried out by the 1 visible present invention of table to electric current to control.Control mode in table 1, can be with
Selected according to air-conditioning practical operation situation, according at least one of tri- kinds of current protection values of I1, I2, I3 come carry out judge and
Execute corresponding compressor control.Numerical value and range in table 1 are only exemplary, in actual operation can be according to circumstances
Logarithm is adjusted.
The foregoing is merely the preferred embodiment of the present invention, protection scope of the present invention is not limited in above-mentioned embodiment party
Formula, every technical solution for belonging to the principle of the invention all belong to the scope of protection of the present invention.For those skilled in the art
Speech, several improvement carried out without departing from the principles of the present invention, these improvement also should be regarded as the protection model of the present invention
It encloses.
Claims (10)
1. air-conditioning current protection method, which is characterized in that including preset multiple environment temperature sections, multiple input voltage range
And current protection parameter, the current protection parameter includes one group of current protection value, wherein each current protection value and ring
Border temperature range and the combination of the one of which in input voltage section are corresponding；Specifically comprise the following steps：
S100：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is refrigeration mode/heating mode
Rapid S110；
S110：Detect environment temperature, input voltage and operating current；
S120：According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, work is judged
Make whether electric current reaches the current protection value to match with the environment temperature section and input voltage section, is executed if reaching
Step S130；The compressor normal operation if not up to, returns to step S110；
S130：Control compressor：Frequency no longer rising/frequency declines a preset value FDrop/ control compressor shutdown is simultaneously being passed through
It is turned back on after preset downtime, returns to step S110.
2. air-conditioning current protection method, which is characterized in that including preset multiple environment temperature sections, multiple input voltage range
And current protection parameter, the current protection parameter include the first current protection value and each one group of the second current protection value,
In each first, second current protection value combined with the one of which in environment temperature section and input voltage section it is corresponding；
Specifically comprise the following steps：
S200：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is refrigeration mode/heating mode
Rapid S210；
S210：Detect environment temperature, input voltage and operating current；
S220：According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, work is judged
Make whether electric current reaches the first current protection value to match with the environment temperature section and input voltage section, if reaching
Step S230 is executed, the compressor normal operation if not up to returns to step S210；
S230：Judge whether operating current reaches the second electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S240 if reaching, if not up to thening follow the steps S250；
S240：It controls compressor frequency and declines a preset value FDrop, return to step S210；
S250：Control compressor frequency no longer rises, and returns to step S210.
3. air-conditioning current protection method, which is characterized in that including preset multiple environment temperature sections, multiple input voltage range
And current protection parameter, the current protection parameter include the first current protection value and each one group of third current protection value,
In each first, third current protection value combined with the one of which in environment temperature section and input voltage section it is corresponding；
Specifically comprise the following steps：
S300：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is refrigeration mode/heating mode
Rapid S310；
S310：Detect environment temperature, input voltage and operating current；
S320：According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, work is judged
Make whether electric current reaches the first current protection value to match with the environment temperature section and input voltage section, if reaching
Step S330 is executed, the compressor normal operation if not up to returns to step S310；
S330：Judge whether operating current reaches the third electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S340 if reaching, if not up to thening follow the steps S350；
S340：Compressor shutdown is controlled, is turned back on after preset downtime, returns to step S310；
S350：Control compressor frequency no longer rises, and returns to step S310.
4. air-conditioning current protection method, which is characterized in that including preset multiple environment temperature sections, multiple input voltage range
And current protection parameter, the current protection parameter include the second current protection value and each one group of third current protection value,
In second, third each current protection value combined with the one of which in environment temperature section and input voltage section it is corresponding；
Specifically comprise the following steps：
S400：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is refrigeration mode/heating mode
Rapid S410；
S410：Detect environment temperature, input voltage and operating current；
S420：According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, work is judged
Make whether electric current reaches the second current protection value to match with the environment temperature section and input voltage section, if reaching
Step S430 is executed, the compressor normal operation if not up to returns to step S410；
S430：Judge whether operating current reaches the third electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S440 if reaching, if not up to thening follow the steps S450；
S440：Compressor shutdown is controlled, is turned back on after preset downtime, returns to step S410；
S450：It controls compressor frequency and declines a preset value FDrop, return to step S410.
5. air-conditioning current protection method, which is characterized in that including preset multiple environment temperature sections, multiple input voltage range
And current protection parameter, the current protection parameter include the first current protection value, the second current protection value and third electric current
Each one group of protection value, wherein each first, second, third current protection value and environment temperature section and input voltage section
One of which combination is corresponding；Specifically comprise the following steps：
S500：After air-conditioning booting operation, operational mode is judged：Step is executed when pattern is refrigeration mode/heating mode
Rapid S510；
S510：Detect environment temperature, input voltage and operating current；
S520：According to environment temperature section corresponding with the environment temperature and input voltage and input voltage section, work is judged
Make whether electric current reaches the first current protection value to match with the environment temperature section and input voltage section, if reaching
Step S530 is executed, the compressor normal operation if not up to returns to step S510；
S530：Judge whether operating current reaches the second electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S540 if reaching, if not up to thening follow the steps S550；
S540：Judge whether operating current reaches the third electric current to match with the environment temperature section and input voltage section
Protection value thens follow the steps S560 if reaching, if not up to thening follow the steps S570；
S550：Control compressor frequency no longer rises, and returns to step S510；
S560：Compressor shutdown is controlled, is turned back on after preset downtime, returns to step S510；
S570：It controls compressor frequency and declines a preset value FDrop, return to step S510.
6. air-conditioning, including compressor, it is characterised in that further include：
Environment temperature sensor：For detecting environment temperature, data-signal is generated；
Voltage sensor：For detecting input voltage, data-signal is generated；
Current sensor：For detecting operating current, data-signal is generated；
Storage device：Parameter for storing preset environment temperature section and input voltage section and current protection parameter；
Control device, including decision circuitry and compressor Control Cprant, wherein：
Decision circuitry：For reading environment temperature range, the parameter in input voltage section and current protection ginseng from storage device
Number；For receiving data-signal from environment temperature sensor, voltage sensor, current sensor respectively；Judge the environment of detection
The input voltage section that the environment temperature section and input voltage that temperature is fallen into are fallen into, find out with the environment temperature section and
The current protection parameter that input voltage section matches；The operating current of the current protection parameter and detection is compared, if
The operating current is not less than the current protection parameter, then triggers compressor control electricity corresponding with the current protection parameter
Road；The current protection parameter includes at least one of the first, second current protection value；
At least one of compressor Control Cprant, including first control circuit, second control circuit, wherein：
First control circuit：The corresponding first current protection value, no longer rises for controlling compressor frequency；
Second control circuit：The corresponding second current protection value declines a preset value F for controlling compressor frequencyDrop。
7. air-conditioning according to claim 6, which is characterized in that the current protection parameter further includes third current protection
Value, the compressor Control Cprant further include：
Timer：For carrying out shutdown timing according to preset downtime；
Third control circuit：The corresponding third current protection value, for controlling compressor shutdown and triggering timer, in timing
Control compressor booting after the completion.
8. air-conditioning, including compressor, it is characterised in that further include：
Environment temperature sensor：For detecting environment temperature, data-signal is generated；
Voltage sensor：For detecting input voltage, data-signal is generated；
Current sensor：For detecting operating current, data-signal is generated；
Storage device：Parameter for storing preset environment temperature section and input voltage section and current protection parameter；
Control device, including decision circuitry and compressor Control Cprant, wherein：
Decision circuitry：For reading environment temperature range, the parameter in input voltage section and current protection ginseng from storage device
Number；For receiving data-signal from environment temperature sensor, voltage sensor, current sensor respectively；Judge the environment of detection
The input voltage section that the environment temperature section and input voltage that temperature is fallen into are fallen into, find out with the environment temperature section and
The current protection parameter that input voltage section matches；The operating current of the current protection parameter and detection is compared, if
The operating current is not less than the current protection parameter, then triggers compressor control electricity corresponding with the current protection parameter
Road；The current protection parameter includes third current protection value；
Compressor Control Cprant, including：
Third control circuit：The corresponding third current protection value, for controlling compressor shutdown and triggering timer, in timing
Control compressor booting after the completion；
Timer：For carrying out shutdown timing according to preset downtime.
9. the air-conditioning current protection method according to claim 1,2,4, any one of 5 or claim 6, any one of 7
The air-conditioning, it is characterised in that：
The FDropFor 5~10Hz.
10. the air-conditioning current protection method according to claim 1,3,4, any one of 5 or claim 7, any one of 8
The air-conditioning, it is characterised in that：
The preset downtime is 2~3 minutes.
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