CN107192022A - Air conditioner and air-conditioner control method, device and storage medium - Google Patents
Air conditioner and air-conditioner control method, device and storage medium Download PDFInfo
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- CN107192022A CN107192022A CN201710462668.1A CN201710462668A CN107192022A CN 107192022 A CN107192022 A CN 107192022A CN 201710462668 A CN201710462668 A CN 201710462668A CN 107192022 A CN107192022 A CN 107192022A
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000003860 storage Methods 0.000 title claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 8
- 238000010257 thawing Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000001012 protector Effects 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 244000240602 cacao Species 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air conditioner, the air conditioner includes interior machine and outer machine, the interior machine includes the interior machine controller for being provided with current transformer, the outer machine includes compressor, pressure switch and A.C. contactor, the pressure switch is arranged in compressor circuit, the pressure switch is electrically connected with A.C. contactor, and power output end, A.C. contactor and the compressor power incoming end of the interior machine are electrically connected with successively.The invention also discloses a kind of air-conditioner control method and device and a kind of storage medium.The present invention need not connect signal wire between interior machine and outer machine; the purpose protected to compressor can be achieved; solving pressure switch control mode of the prior art needs to realize by connecting line, the technical problem that can not be effectively protected to compressor in the case of without the connecting line.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of air conditioner and air-conditioner control method, device and storage
Medium.
Background technology
Air conditioner is one of the most frequently used household electrical appliances at present, and air conditioner is run in the case of too cold, or heat exchanger it is dirty stifled when,
Air-conditioner system pressure can be higher, and the compressor of longtime running under high pressure is easy to damage.In order to protect pressure
Contracting machine, is typically provided with pressure switch on the blast pipe of compressor circuit, when system pressure exceedes setting value, pressure switch
Disconnect, compressor is out of service.Because pressure switch is set in outer machine, the switch motion of pressure switch needs to pass by signal wire
It is defeated on indoor set electric-controlled plate, electric-controlled plate receives the power supply that compressor is controlled after signal.
At present, some areas such as Saudi Arabia area is just pre-buried by the connecting line of air-conditioning when house is built, general only 5
Line, by taking air conditioner as an example, if using above-mentioned pressure switch control mode, zero line, compressed signal line, blower fan live wire, four-way
Valve live wire, ground wire has needed 5 lines, therefore the position that does not just connect of control line of pressure switch.Therefore use above-mentioned pressure
Power method of controlling switch can not effectively be protected to compressor.
The content of the invention
It is a primary object of the present invention to propose a kind of air conditioner and air-conditioner control method, device and storage medium, purport
Need to realize by connecting line solving pressure switch control mode of the prior art, in the case of no connecting line
The technical problem that compressor can not be effectively protected.
To achieve the above object, the present invention provides a kind of air conditioner, and the air conditioner includes interior machine and outer machine, the interior machine
Interior machine controller including being provided with current transformer, the outer machine includes compressor, pressure switch and A.C. contactor, described
Pressure switch is arranged in compressor circuit, and the pressure switch is electrically connected with A.C. contactor, and the power supply of the interior machine is defeated
Go out end, A.C. contactor and compressor power incoming end to be electrically connected with successively.
In addition, to achieve the above object, the present invention also provides a kind of air-conditioner control method, the air-conditioner control method
Including：
The electric current in the interior machine controller is detected using the current transformer for being arranged at internal machine of air-conditioner controller；
Judge whether the compressor in air conditioner external currently shuts down according to the size of the electric current；
If it is determined that the compressor is currently at stopped status, then the air conditioner is controlled to enter compressor protection pattern.
Optionally, judge that the step of whether compressor in air conditioner external currently shuts down is wrapped according to the size of the electric current
Include：
Judge whether the size of the electric current is less than or equal to default first current threshold；
If the electric current is less than or equal to first current threshold, it is determined that the compressor is currently at shutdown shape
State.
Optionally, the outer machine includes pressure switch and A.C. contactor, and the pressure switch and A.C. contactor are electrical
Connection, power output end, A.C. contactor and the compressor power incoming end of internal machine of air-conditioner are electrically connected with successively, the pressure
Switch is provided with pressure sensor, and the air-conditioner control method also includes：
When the pressure sensor detects air-conditioner system pressure more than default pressure threshold, then the pressure is disconnected
Power is switched, wherein, after pressure switch disconnection, the A.C. contactor powers off to cut off the power supply of the compressor.
Optionally, described utilize is arranged in the current transformer of the internal machine of air-conditioner controller detection interior machine controller
Electric current the step of after also include：
The pressure trend of air-conditioner system pressure is determined according to the curent change trend of the electric current；
According to the size of the pressure trend and the electric current, the power output of internal machine of air-conditioner is controlled.
Optionally, the step of the pressure trend of air-conditioner system pressure is determined according to the curent change trend of the electric current
Suddenly include：
Detect the current peak of the electric current, by the first currently detected current peak with it is preceding once detect second
Current peak is compared；
When first current peak is more than the number of times of second peak value more than given threshold in setting time section, then
It is ascendant trend to determine the curent change trend；
If it is determined that the curent change trend is ascendant trend, it is determined that the pressure trend is ascendant trend.
Optionally, according to the size of the pressure trend and the electric current, the power output of internal machine of air-conditioner is controlled
The step of include：
When the pressure trend be ascendant trend, and the electric current be more than setting the second current threshold when, then drop
The power output of the low internal machine of air-conditioner.
Optionally, the internal machine of air-conditioner also includes being provided with TEMP in air conditioner inner disc, the air conditioner inner disc
Device, described utilize is arranged at the step of current transformer of internal machine of air-conditioner controller detects the electric current in the interior machine controller
Also include afterwards：
The temperature of the air conditioner inner disc is detected using the temperature sensor, and according to the temperature of the air conditioner inner disc
The size of variation tendency and the electric current, judge air conditioner external whether frosting；
If it is determined that air conditioner external frosting, then close the compressor, and control the air conditioner to enter defrosting mode.
Optionally, according to the size of the temperature changing trend of the air conditioner inner disc and the electric current, air conditioner is judged
Outer machine whether frosting the step of include：
When the temperature changing trend is on a declining curve, and the electric current is when being less than three current threshold of setting, then really
Determine air conditioner external frosting.
In addition, to achieve the above object, the present invention also provides a kind of air conditioner controlling device, the air conditioner controlling device
Including memory, processor and the air conditioner control program that can be run on the memory and on the processor is stored in,
Each corresponding step of air-conditioner control method as described above is realized when the air conditioner control program is by the computing device
Suddenly.
In addition, to achieve the above object, the present invention also provides the air-conditioning that is stored with a kind of storage medium, the storage medium
Device control program, the air conditioner control program realizes that air-conditioner control method as described above is corresponding when being executed by processor
Each step.
Air conditioner and air-conditioner control method provided by the present invention, device and storage medium, it is available to be arranged at air-conditioning
The current transformer of machine controller detects the electric current in the interior machine controller, and the setting one in air conditioner external in device
A.C. contactor, the A.C. contactor is connected with compressor pressure switch, when pressure switch because air-conditioner system pressure is excessive
And when disconnecting, above-mentioned A.C. contactor can also be powered off therewith, so that the power supply of compressor is cut off, wherein, in cut-out compressor
After power supply, the size of current that interior machine controller is detected according to above-mentioned current transformer, you can judge that compressor is current
Through shutting down, now then control air conditioner enters compressor protection pattern, so as to be effectively protected compressor.The present invention need not be
Signal wire is connected between interior machine and outer machine, you can is realized the purpose protected to compressor, is solved pressure of the prior art
Power switch control mode needs to realize can not have in the case of no connecting line to compressor by connecting line
Imitate the technical problem of protection.
Brief description of the drawings
Fig. 1 is the control circuit diagram of air conditioner in air conditioner first embodiment of the present invention；
Fig. 2 is the schematic flow sheet of air-conditioner control method first embodiment of the present invention；
Fig. 3 is the schematic flow sheet of air-conditioner control method 3rd embodiment of the present invention；
Fig. 4 is the schematic flow sheet of air-conditioner control method fourth embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with Figure of description, it will be appreciated that described herein
Preferred embodiment is merely to illustrate and explain the present invention, and is not intended to limit the present invention, and in the case where not conflicting, this hair
The feature in embodiment and embodiment in bright can be mutually combined.
Following examples of the present invention provide in a kind of air conditioner, the interior machine controller of the internal machine of air-conditioner and set Current Mutual Inductance
Device, the size of current to detect internal machine of air-conditioner output, and one A.C. contactor of setting, the friendship in air conditioner external
Stream contactor is connected with compressor pressure switch, when pressure switch disconnects because air-conditioner system pressure is excessive, above-mentioned friendship
Stream contactor can also be powered off therewith, so that the power supply of compressor is cut off, wherein, after the power supply of cut-out compressor, interior machine control
The size of current that the internal machine of air-conditioner that device processed is detected according to above-mentioned current transformer is exported, you can judge that compressor is current
Through shutting down, now then control air conditioner enters compressor protection pattern, so as to be effectively protected compressor.
In order to be better understood from the present invention, reference picture 1, Fig. 1 is the control of air conditioner in air conditioner first embodiment of the present invention
In circuit diagram processed, air conditioner first embodiment of the present invention, above-mentioned air conditioner includes interior machine and outer machine, and the interior machine includes setting
The interior machine controller 1 of current transformer is equipped with, the outer machine includes compressor 6, pressure switch 5 and A.C. contactor 8, the pressure
Power switch 5 is arranged on the pipeline of compressor 6, and the pressure switch 5 is electrically connected with A.C. contactor 8, the power supply of the interior machine
Output end, A.C. contactor 8 and compressor power incoming end are electrically connected with successively.
In addition, in Fig. 1, above-mentioned air conditioner also includes evaporator 2, axial-flow fan 3, four-way reversing valve 4, capillary 7, pressure
Machine protector 9, compressor capacitor 10.
Wherein, press protector 9 refer to compressor protector (also known as three phase electric power protector, power supply protector, overvoltage/undervoltage
Protector etc.), it is mainly used in the overtension to input power, brownout, phase shortage, anti-phase (phase sequence), Voltage unbalance etc.
Relay protection is provided；Compressor capacitor 10 is used to start above-mentioned compressor 6.
Wherein, current transformer is made according to electromagnetic induction principle, is made up of the iron core and winding that close, its one
Secondary side umber of turn seldom, is gone here and there in the circuit for the electric current for needing to measure, therefore whole electric currents that it often has circuit flow through, and two
Secondary side umber of turn is relatively more, is serially connected in measuring instrumentss and protective loop, and operationally, its secondary side is returned current transformer
Road is to close all the time, therefore measuring instrumentss and the impedance very little of protective loop series coil, the working condition of current transformer
Close to short circuit.Current transformer is that primary side high current is converted into secondary side low current to measure, and secondary side can not open a way.Cause
This, in the bus that the primary side of current transformer is accessed to above-mentioned interior machine controller 1, you can detect in interior machine controller 1
Electric current.
Powered it is understood that compressor 6 in air conditioner external does not have not independent power supply, required for it
Electric energy is typically all to be provided by interior machine, and interior machine to compressor 6 electric energy is provided when, electric current is required for flowing through above-mentioned interior machine control
Device 1., it is necessary to take certain electric current during due to 6 normal work of compressor, so when flow through electric current in interior machine controller 1 compared with
Greatly, and when compressor 6 is shut down, electric current when flowing through the electric current in interior machine controller 1 naturally than 6 normal work of compressor
It is small, therefore can judge whether compressor 6 currently shuts down according to the size of above-mentioned electric current.
If it is determined that the compressor 6 is currently at stopped status, then the air conditioner is controlled to enter compressor protection pattern.
For example, after air conditioner enters overtemperature protection pattern, after the time (such as 3 minutes) for waiting setting, then restarting compressor.
Air conditioner described in the present embodiment, the air conditioner includes interior machine and outer machine, and the interior machine is mutual including being provided with electric current
The interior machine controller of sensor, the outer machine includes compressor, pressure switch and A.C. contactor, and the pressure switch is arranged at pressure
On contracting machine pipeline, the pressure switch and A.C. contactor are electrically connected with, the power output end of the interior machine, A.C. contactor and
Compressor power incoming end is electrically connected with successively, when pressure switch disconnects because air-conditioner system pressure is excessive, above-mentioned friendship
Stream contactor can also be powered off therewith, so that the power supply of compressor is cut off, wherein, after the power supply of cut-out compressor, interior machine control
The size of current that the internal machine of air-conditioner that device processed is detected according to above-mentioned current transformer is exported, you can judge that compressor is current
Through shutting down, now then control air conditioner enters compressor protection pattern, so as to be effectively protected compressor.The present embodiment need not
Signal wire is connected between interior machine and outer machine, you can is realized the purpose protected to compressor, is solved of the prior art
Pressure switch control mode needs to realize by connecting line, compressor can not be carried out in the case of no connecting line
The technical problem effectively protected.
Following examples of the present invention also provide a kind of air-conditioner control method, and this method passes through the interior machine in internal machine of air-conditioner
Current transformer is set in controller, the size of current to detect internal machine of air-conditioner output, and set in air conditioner external
An A.C. contactor is put, the A.C. contactor is connected with compressor pressure switch, when pressure switch is due to air-conditioner system pressure
Power is excessive and when disconnecting, above-mentioned A.C. contactor can also be powered off therewith, so that the power supply of compressor is cut off, wherein, in cut-out pressure
After the power supply of contracting machine, the size of current that the internal machine of air-conditioner that interior machine controller is detected according to above-mentioned current transformer is exported,
It can judge that compressor has currently been shut down, now then control air conditioner enters compressor protection pattern, so as to effectively protect
Protect compressor.
Reference picture 2, Fig. 2 is the schematic flow sheet of air-conditioner control method first embodiment of the present invention, above-mentioned air conditioner control
Method processed includes：
Step S10, is detected in the interior machine controller using the current transformer for being arranged at internal machine of air-conditioner controller
Electric current.
Wherein, current transformer is made according to electromagnetic induction principle, is made up of the iron core and winding that close, its one
Secondary side umber of turn seldom, is gone here and there in the circuit for the electric current for needing to measure, therefore whole electric currents that it often has circuit flow through, and two
Secondary side umber of turn is relatively more, is serially connected in measuring instrumentss and protective loop, and operationally, its secondary side is returned current transformer
Road is to close all the time, therefore measuring instrumentss and the impedance very little of protective loop series coil, the working condition of current transformer
Close to short circuit.Current transformer is that primary side high current is converted into secondary side low current to measure, and secondary side can not open a way.Cause
This, in the bus that the primary side of current transformer is accessed to above-mentioned interior machine controller, you can detect the electricity in interior machine controller
Stream.
Step S20, judges whether the compressor in air conditioner external currently shuts down according to the size of the electric current.
Powered it is understood that the compressor in air conditioner external does not have independent power supply, required for it
Electric energy is typically all to be provided by interior machine, and interior machine to compressor electric energy is provided when, electric current is required for flowing through above-mentioned interior machine control
Device., it is necessary to take certain electric current during due to compressor normal work, the electric current now flowed through in interior machine controller is larger, and
When the compressor is shut down, electric current when flowing through the electric current in interior machine controller naturally than compressor normal work is small, therefore can
To judge whether compressor currently shuts down according to the size of above-mentioned electric current.
Specifically, the above-mentioned size according to the electric current judges the step whether compressor in air conditioner external currently shuts down
Suddenly include：
Judge whether the size of the electric current is less than or equal to default first current threshold；
If the electric current is less than or equal to first current threshold, it is determined that the compressor is currently at shutdown shape
State.
Wherein, detect in advance when the compressor is shut down, the current value in above-mentioned interior machine controller, then by the current value
It is defined as above-mentioned first current threshold, if the electric current in interior machine controller is less than or equal to first current threshold, it is determined that pressure
Contracting machine is currently at stopped status.
Furthermore it is also possible to detect when the compressor is shut down in advance, in certain period of time, in above-mentioned interior machine controller
Maximum current value, or average current value, then regard the maximum current value or average current value as above-mentioned first current threshold
Value.
Step S30, however, it is determined that the compressor is currently at stopped status, then control the air conditioner to be protected into compressor
Shield pattern.
In the present embodiment, after it is determined that above-mentioned compressor is currently at stopped status, then air conditioner is controlled to enter compressor
Protected mode.
Wherein, the compressor protection pattern of air conditioner generally comprises three kinds of forms：Overtemperature protection, supercooling protection, excessively stream are protected
Shield.Wherein, overtemperature protection is that compressor long-play, or air-conditioning system have stifled (ice stifled or dirty stifled) long after system lacks fluorine
Time is run, or environment temperature is too high；Into during overtemperature protection, as long as after the temperature reduction of compressor, pressure just can be restarted
Contracting machine.
For example, after air conditioner enters overtemperature protection pattern, after the time (such as 3 minutes) for waiting setting, then opening again
Dynamic compressor.
Air-conditioner control method described in the present embodiment, this method in the interior machine controller of internal machine of air-conditioner by setting
Current transformer, the size of current to detect internal machine of air-conditioner output, and set an exchange to connect in air conditioner external
Tentaculum, the A.C. contactor is connected with compressor pressure switch, when pressure switch disconnects because air-conditioner system pressure is excessive
When, above-mentioned A.C. contactor can also be powered off therewith, so as to cut off the power supply of compressor, wherein, cut-out compressor power supply it
Afterwards, the size of current that the internal machine of air-conditioner that interior machine controller is detected according to above-mentioned current transformer is exported, you can judge pressure
Contracting machine has currently been shut down, and now then control air conditioner enters compressor protection pattern, so as to be effectively protected compressor.This reality
Signal wire need not be connected between interior machine and outer machine by applying example, you can realize the purpose protected to compressor, be solved existing
There is the pressure switch control mode in technology to need to realize by connecting line, can not be right in the case of no connecting line
The technical problem that compressor is effectively protected.
Further, based on air-conditioner control method first embodiment of the present invention, air-conditioner control method of the present invention is proposed
In second embodiment, the present embodiment, above-mentioned outer machine includes pressure switch and A.C. contactor, the pressure switch and ac contactor
Device is electrically connected with, and power output end, A.C. contactor and the compressor power incoming end of internal machine of air-conditioner are electrically connected with successively, institute
State pressure switch and be provided with pressure sensor, above-mentioned air-conditioner control method also includes：
When the pressure sensor detects air-conditioner system pressure more than default pressure threshold, then the pressure is disconnected
Power is switched, wherein, after pressure switch disconnection, the A.C. contactor powers off to cut off the power supply of the compressor.
Wherein, A.C. contactor is typically available for remote connect and disjunction circuit, continually starting and control AC electrical
Machine is used, and can protect the circuit that may occur to operate overload with appropriate electrothermal relay composition electromagnetic starter.It is former
Reason is to be added in extraneous power supply on coil, produces electromagnetic field.Contact point after adhesive, extraneous power cut-off is powered up to disconnect therewith,
I.e. when the coil is energized, static iron core produces electromagnetic attraction, by dynamic iron core adhesive, the closing of contact, so as to switch on power；When coil is disconnected
When electric, suction is disappeared, and dynamic iron core linkage part is separated by the reaction force of spring, is disconnected main contact, is cut off the electricity supply.
Wherein, reference picture 1 understands that above-mentioned pressure switch is connected with A.C. contactor, and one end of A.C. contactor is connected to
The power output end (such as live wire) of interior machine, the other end is connected to compressor power incoming end by compressor capacitor.When pressure is opened
When shut-off is opened, the coil in A.C. contactor is powered off therewith, so as to cut off the power supply of compressor.
Air-conditioner control method described in the present embodiment, when air-conditioner system pressure is more than default pressure threshold, pressure
Power is switched off, and after pressure switch disconnection, above-mentioned A.C. contactor is powered off simultaneously, so as to cut off the power supply of compressor, i.e., originally
In embodiment, pressure switch cut-off signal need not be passed to interior machine controller by pressure switch by signal connecting line, you can
The power supply of compressor is cut off, so as to be effectively protected compressor.
Further, based on air-conditioner control method first embodiment of the present invention, air-conditioner control method of the present invention is proposed
3rd embodiment, reference picture 3, Fig. 3 is the schematic flow sheet of air-conditioner control method 3rd embodiment of the present invention；The present embodiment
In, the utilization described in above-mentioned steps S10 is arranged at the current transformer detection interior machine control of internal machine of air-conditioner controller
Also include after electric current in device：
Step S40, the pressure trend of air-conditioner system pressure is determined according to the curent change trend of the electric current；
Step S50, according to the size of the pressure trend and the electric current, controls the output work of internal machine of air-conditioner
Rate.
In the present embodiment, because air conditioner is in process of refrigerastion, if high load capacity is continuously run, its system pressure can compare
Height, compressor under high pressure is easy to damage, therefore, and in order to protect compressor, the present embodiment can also be according to above-mentioned
Electric current in the interior machine controller that current transformer is detected, to control the power output of interior machine.
Further, the curent change trend according to the electric current described in above-mentioned steps S40 determines air-conditioner system pressure
The pressure trend of power includes：
Detect the current peak of the electric current, by the first currently detected current peak with it is preceding once detect second
Current peak is compared；
When first current peak is more than the number of times of second peak value more than given threshold in setting time section, then
It is ascendant trend to determine the curent change trend；
If it is determined that the curent change trend is ascendant trend, it is determined that the pressure trend is ascendant trend.
In the present embodiment, when air conditioner is in refrigeration work state, detected in real time in above-mentioned using above-mentioned current transformer
Electric current in machine controller, and current peak is detected, then the first currently detected current peak is detected with last
To the second current peak be compared, if M (such as M=10) is within minute, exist N (such as N=5) it is secondary more than the first current peak
Situation of the value more than the second current peak, it is determined that the pressure trend of air-conditioner system pressure is in rising trend.
Further, the size according to the pressure trend and the electric current described in above-mentioned steps S50, control is empty
Adjusting the power output of machine in device includes：
When the pressure trend be ascendant trend, and the electric current be more than setting the second current threshold when, then drop
The power output of the low internal machine of air-conditioner.
In the present embodiment, the corresponding protective current value Amax of above-mentioned press protector 9 is predefined, when the pressure change
Trend is ascendant trend, and the electric current that detects of current transformer is then reduced when being more than the second current threshold (such as 80%Amax)
The power output of interior machine, such as lowers one grade of operation, so as to reduce air-conditioner system pressure by the rotating speed of indoor fan.
In addition, in reduction after the power output of machine, if within continuous N minute, the electricity that current transformer is detected
Stream is respectively less than the second current threshold, and above-mentioned first current peak is more than threshold of the times N less than setting of the second current peak
Value, then improve the power output of interior machine, and the rotating speed of indoor fan such as is lifted into one grade of operation.
Air-conditioner control method described in the present embodiment, the electric current in interior machine controller is detected using current transformer
Afterwards, the pressure trend of air-conditioner system pressure can also be determined according to the curent change trend of the electric current, then basis
Pressure trend with institute the electric current size, control internal machine of air-conditioner power output, so as to prevent due to air conditioner
System pressure is too high and causes the impaired situation of compressor, advantageously in protection compressor.
Further, based on air-conditioner control method the first or the second of the present invention or 3rd embodiment, the present invention is proposed
Air-conditioner control method fourth embodiment, reference picture 4, Fig. 4 shows for the flow of air-conditioner control method fourth embodiment of the present invention
It is intended to；In the present embodiment, above-mentioned internal machine of air-conditioner also includes being provided with TEMP in air conditioner inner disc, the air conditioner inner disc
Device, the utilization described in above-mentioned steps S10 is arranged at the current transformer detection interior machine control of internal machine of air-conditioner controller
Also include after electric current in device：
Step S60, the temperature of the air conditioner inner disc is detected using the temperature sensor, and according in the air conditioner
The size of the temperature changing trend of disk and the electric current, judge air conditioner external whether frosting；
Step S70, however, it is determined that air conditioner external frosting, then close the compressor, and control the air conditioner to enter and remove
White pattern.
In the present embodiment, because air conditioner is in heating operations, if external environment condition temperature is relatively low, air conditioner external is held very much
Easy frosting, after air conditioner external frosting, can have a strong impact on household air-conditioner, and compressor is equally easy to damage, because
This, is in order to protect the electric current in compressor, the interior machine controller that the present embodiment can also be detected according to above-mentioned current transformer,
Come judge air conditioner whether frosting, so as to protect compressor in time.
Further, the temperature changing trend and the electricity according to the air conditioner inner disc described in above-mentioned steps S60
The size of stream, judges whether frosting includes air conditioner external：
When the temperature changing trend is on a declining curve, and the electric current is when being less than three current threshold of setting, then really
Determine air conditioner external frosting.
In the present embodiment, when the temperature changing trend of air conditioner inner disc is on a declining curve and fall is more than the threshold set
It is worth (such as 20%), and the electric current that detects of current transformer is when being less than three current thresholds (such as 85%Amax), it is determined that it is empty
The outer machine frosting of device is adjusted, now, above-mentioned compressor is closed, and closes the outer blower fan of air conditioner and four-way reversing valve, delay is opened after B seconds
Compressor is opened, defrosting time is T, be then shut off compressor while opening outer blower fan, four-way valve is opened in delay after B1 seconds, postpone n1
Compressor is opened after second.
Wherein, above-mentioned B, T, B1, n1 can be had according to air conditioner parameter air conditioner production firm setting, cocoa by user voluntarily
Setting.
Air-conditioner control method described in the present embodiment, the electric current in interior machine controller is detected using current transformer
Afterwards, it can also judge whether air conditioner external is tied according to the temperature changing trend and the size of the electric current of air conditioner inner disc
Frost, however, it is determined that air conditioner external frosting, then close compressor, and control air conditioner to enter defrosting mode, so as to prevent by
Cause the impaired situation of compressor in air conditioner external frosting, advantageously in protection compressor.
Further, the invention also discloses a kind of air conditioner controlling device, the air conditioner controlling device include memory,
Processor and the air conditioner control program that can be run on the memory and on the processor is stored in, the air conditioner control
Following steps are realized when processing procedure sequence is by the computing device：
The electric current in the interior machine controller is detected using the current transformer for being arranged at internal machine of air-conditioner controller；
Judge whether the compressor in air conditioner external currently shuts down according to the size of the electric current；
If it is determined that the compressor is currently at stopped status, then the air conditioner is controlled to enter compressor protection pattern.
Further, what whether the compressor that the above-mentioned size according to the electric current judges in air conditioner external currently shut down
Step includes：
Judge whether the size of the electric current is less than or equal to default first current threshold；
If the electric current is less than or equal to first current threshold, it is determined that the compressor is currently at shutdown shape
State.
Further, above-mentioned outer machine includes pressure switch and A.C. contactor, the pressure switch and A.C. contactor electricity
Property connection, power output end, A.C. contactor and the compressor power incoming end of internal machine of air-conditioner be electrically connected with successively, the pressure
Power switch is provided with pressure sensor, when above-mentioned air conditioner control program is by the computing device, can also realize following step
Suddenly：
When the pressure sensor detects air-conditioner system pressure more than default pressure threshold, then the pressure is disconnected
Power is switched, wherein, after pressure switch disconnection, the A.C. contactor powers off to cut off the power supply of the compressor.
Further, it is above-mentioned to detect the interior machine controller using the current transformer for being arranged at internal machine of air-conditioner controller
In electric current the step of after, when above-mentioned air conditioner control program is by the computing device, following steps can also be realized：
The pressure trend of air-conditioner system pressure is determined according to the curent change trend of the electric current；
According to the size of the pressure trend and the electric current, the power output of internal machine of air-conditioner is controlled.
Further, the above-mentioned curent change trend according to the electric current determines that the pressure change of air-conditioner system pressure becomes
The step of gesture, includes：
Detect the current peak of the electric current, by the first currently detected current peak with it is preceding once detect second
Current peak is compared；
When first current peak is more than the number of times of second peak value more than given threshold in setting time section, then
It is ascendant trend to determine the curent change trend；
If it is determined that the curent change trend is ascendant trend, it is determined that the pressure trend is ascendant trend.
Further, the above-mentioned size according to the pressure trend and the electric current, controls the defeated of internal machine of air-conditioner
The step of going out power includes：
When the pressure trend be ascendant trend, and the electric current be more than setting the second current threshold when, then drop
The power output of the low internal machine of air-conditioner..
Further, above-mentioned internal machine of air-conditioner also includes being provided with temperature biography in air conditioner inner disc, the air conditioner inner disc
Sensor, the above-mentioned step using the electric current being arranged in the current transformer of the internal machine of air-conditioner controller detection interior machine controller
After rapid, when above-mentioned air conditioner control program is by the computing device, following steps can also be realized：
The temperature of the air conditioner inner disc is detected using the temperature sensor, and according to the temperature of the air conditioner inner disc
The size of variation tendency and the electric current, judge air conditioner external whether frosting；
If it is determined that air conditioner external frosting, then close the compressor, and control the air conditioner to enter defrosting mode.
Further, above-mentioned temperature changing trend and the size of the electric current according to the air conditioner inner disc, judges
Air conditioner external whether frosting the step of include：
When the temperature changing trend is on a declining curve, and the electric current is when being less than three current threshold of setting, then really
Determine air conditioner external frosting.
Above-mentioned air conditioner controlling device detects the electric current in interior machine controller using current transformer, then according to the electricity
The size of stream judges whether compressor currently shuts down, however, it is determined that the compressor is currently at stopped status, then controls air conditioner
Into compressor protection pattern, so as to be effectively protected compressor.The present apparatus need not connect signal between interior machine and outer machine
Line, you can realize the purpose protected to compressor, solving pressure switch control mode of the prior art needs to pass through
Connecting line realizes, the technical problem that can not effectively be protected to compressor in the case of without the connecting line.
Further, the invention also discloses a kind of storage medium, be stored with air conditioner control program on the storage medium,
The air conditioner control program realizes following steps when being executed by processor：
The electric current in the interior machine controller is detected using the current transformer for being arranged at internal machine of air-conditioner controller；
Judge whether the compressor in air conditioner external currently shuts down according to the size of the electric current；
If it is determined that the compressor is currently at stopped status, then the air conditioner is controlled to enter compressor protection pattern.
Further, what whether the compressor that the above-mentioned size according to the electric current judges in air conditioner external currently shut down
Step includes：
Judge whether the size of the electric current is less than or equal to default first current threshold；
If the electric current is less than or equal to first current threshold, it is determined that the compressor is currently at shutdown shape
State.
Further, above-mentioned outer machine includes pressure switch and A.C. contactor, the pressure switch and A.C. contactor electricity
Property connection, power output end, A.C. contactor and the compressor power incoming end of internal machine of air-conditioner be electrically connected with successively, the pressure
Power switch is provided with pressure sensor, when above-mentioned air conditioner control program is by the computing device, can also realize following step
Suddenly：
When the pressure sensor detects air-conditioner system pressure more than default pressure threshold, then the pressure is disconnected
Power is switched, wherein, after pressure switch disconnection, the A.C. contactor powers off to cut off the power supply of the compressor.
Further, it is above-mentioned to detect the interior machine controller using the current transformer for being arranged at internal machine of air-conditioner controller
In electric current the step of after, when above-mentioned air conditioner control program is by the computing device, following steps can also be realized：
The pressure trend of air-conditioner system pressure is determined according to the curent change trend of the electric current；
According to the size of the pressure trend and the electric current, the power output of internal machine of air-conditioner is controlled.
Further, the above-mentioned curent change trend according to the electric current determines that the pressure change of air-conditioner system pressure becomes
The step of gesture, includes：
Detect the current peak of the electric current, by the first currently detected current peak with it is preceding once detect second
Current peak is compared；
When first current peak is more than the number of times of second peak value more than given threshold in setting time section, then
It is ascendant trend to determine the curent change trend；
If it is determined that the curent change trend is ascendant trend, it is determined that the pressure trend is ascendant trend.
Further, the above-mentioned size according to the pressure trend and the electric current, controls the defeated of internal machine of air-conditioner
The step of going out power includes：
When the pressure trend be ascendant trend, and the electric current be more than setting the second current threshold when, then drop
The power output of the low internal machine of air-conditioner..
Further, above-mentioned internal machine of air-conditioner also includes being provided with temperature biography in air conditioner inner disc, the air conditioner inner disc
Sensor, the above-mentioned step using the electric current being arranged in the current transformer of the internal machine of air-conditioner controller detection interior machine controller
After rapid, when above-mentioned air conditioner control program is by the computing device, following steps can also be realized：
The temperature of the air conditioner inner disc is detected using the temperature sensor, and according to the temperature of the air conditioner inner disc
The size of variation tendency and the electric current, judge air conditioner external whether frosting；
If it is determined that air conditioner external frosting, then close the compressor, and control the air conditioner to enter defrosting mode.
Further, above-mentioned temperature changing trend and the size of the electric current according to the air conditioner inner disc, judges
Air conditioner external whether frosting the step of include：
When the temperature changing trend is on a declining curve, and the electric current is when being less than three current threshold of setting, then really
Determine air conditioner external frosting.
Above-mentioned storage medium can be realized：The electric current in interior machine controller is detected using current transformer, then according to described
The size of electric current judges whether compressor currently shuts down, however, it is determined that the compressor is currently at stopped status, then controls air-conditioning
Device enters compressor protection pattern, so as to be effectively protected compressor.This storage medium need not connect between interior machine and outer machine
Connect signal wire, you can realize the purpose protected to compressor, solving pressure switch control mode of the prior art needs
To be realized by connecting line, the technology that can not be effectively protected to compressor in the case of without the connecting line is asked
Topic.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property is included, so that process, method, article or system including a series of key elements not only include those key elements, and
And also including other key elements being not expressly set out, or also include for this process, method, article or system institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there is other identical element in process, method, article or the system of key element.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Understood based on such, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone,
Computer, server, or network equipment etc.) perform method described in each of the invention embodiment.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (11)
1. a kind of air conditioner, it is characterised in that the air conditioner includes interior machine and outer machine, the interior machine is mutual including being provided with electric current
The interior machine controller of sensor, the outer machine includes compressor, pressure switch and A.C. contactor, and the pressure switch is arranged at pressure
On contracting machine pipeline, the pressure switch and A.C. contactor are electrically connected with, the power output end of the interior machine, A.C. contactor and
Compressor power incoming end is electrically connected with successively.
2. a kind of air-conditioner control method, it is characterised in that the air-conditioner control method includes：
The electric current in the interior machine controller is detected using the current transformer for being arranged at internal machine of air-conditioner controller；
Judge whether the compressor in air conditioner external currently shuts down according to the size of the electric current；
If it is determined that the compressor is currently at stopped status, then the air conditioner is controlled to enter compressor protection pattern.
3. air-conditioner control method as claimed in claim 2, it is characterised in that air conditioner is judged according to the size of the electric current
The step of whether compressor in outer machine currently shuts down includes：
Judge whether the size of the electric current is less than or equal to default first current threshold；
If the electric current is less than or equal to first current threshold, it is determined that the compressor is currently at stopped status.
4. air-conditioner control method as claimed in claim 2, it is characterised in that the outer machine includes pressure switch and connect with exchanging
Tentaculum, the pressure switch is electrically connected with A.C. contactor, power output end, A.C. contactor and the compression of internal machine of air-conditioner
Electromechanical source incoming end is electrically connected with successively, and the pressure switch is provided with pressure sensor, and the air-conditioner control method is also wrapped
Include：
When the pressure sensor detects air-conditioner system pressure more than default pressure threshold, then disconnect the pressure and open
Close, wherein, after pressure switch disconnection, the A.C. contactor powers off to cut off the power supply of the compressor.
5. air-conditioner control method as claimed in claim 2, it is characterised in that described utilize is arranged at internal machine of air-conditioner control
Also include after the step of current transformer of device detects the electric current in the interior machine controller：
The pressure trend of air-conditioner system pressure is determined according to the curent change trend of the electric current；
According to the size of the pressure trend and the electric current, the power output of internal machine of air-conditioner is controlled.
6. air-conditioner control method as claimed in claim 5, it is characterised in that true according to the curent change trend of the electric current
The step of pressure trend for determining air-conditioner system pressure, includes：
The current peak of the electric current is detected, by the first currently detected current peak and preceding the second electric current once detected
Peak value is compared；
When first current peak is more than the number of times of second peak value more than given threshold in setting time section, it is determined that
The curent change trend is ascendant trend；
If it is determined that the curent change trend is ascendant trend, it is determined that the pressure trend is ascendant trend.
7. air-conditioner control method as claimed in claim 5, it is characterised in that according to the pressure trend and the electricity
The step of size of stream, power output for controlling internal machine of air-conditioner, includes：
When the pressure trend be ascendant trend, and the electric current be more than setting the second current threshold when, then reduce institute
State the power output of internal machine of air-conditioner.
8. the air-conditioner control method as described in claim 2 to 7 any one, it is characterised in that the internal machine of air-conditioner is also
Including air conditioner inner disc, temperature sensor is provided with the air conditioner inner disc, described utilize is arranged at internal machine of air-conditioner control
Also include after the step of current transformer of device detects the electric current in the interior machine controller：
The temperature of the air conditioner inner disc is detected using the temperature sensor, and according to the temperature change of the air conditioner inner disc
The size of trend and the electric current, judge air conditioner external whether frosting；
If it is determined that air conditioner external frosting, then close the compressor, and control the air conditioner to enter defrosting mode.
9. air-conditioner control method as claimed in claim 8, it is characterised in that according to the temperature change of the air conditioner inner disc
The size of trend and the electric current, judge air conditioner external whether frosting the step of include：
When the temperature changing trend is on a declining curve, and the electric current is when being less than three current threshold of setting, it is determined that empty
Adjust the outer machine frosting of device.
10. a kind of air conditioner controlling device, it is characterised in that the air conditioner controlling device includes memory, processor and deposited
The air conditioner control program that can be run on the memory and on the processor is stored up, the air conditioner control program is by institute
Each corresponding step of air-conditioner control method as any one of claim 2 to 9 is realized when stating computing device.
11. a kind of storage medium, it is characterised in that be stored with air conditioner control program on the storage medium, the air conditioner
Realize that the air-conditioner control method as any one of claim 2 to 9 is corresponding each when control program is executed by processor
Individual step.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710462668.1A CN107192022A (en) | 2017-06-16 | 2017-06-16 | Air conditioner and air-conditioner control method, device and storage medium |
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|---|---|---|---|
| CN201710462668.1A CN107192022A (en) | 2017-06-16 | 2017-06-16 | Air conditioner and air-conditioner control method, device and storage medium |
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| CN107192022A true CN107192022A (en) | 2017-09-22 |
Family
ID=59879222
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| CN201710462668.1A Pending CN107192022A (en) | 2017-06-16 | 2017-06-16 | Air conditioner and air-conditioner control method, device and storage medium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992113A (en) * | 2017-12-19 | 2018-05-04 | 广东美的制冷设备有限公司 | Pressure limiting method, pressure limiting device and temperature control device |
| CN110017593A (en) * | 2019-03-11 | 2019-07-16 | 青岛海尔空调电子有限公司 | Net for air-source heat pump units and its control method and device, storage medium |
| CN110567098A (en) * | 2019-09-23 | 2019-12-13 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device, air conditioner and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181836Y (en) * | 2008-04-02 | 2009-01-14 | Tcl集团股份有限公司 | Protecting equipment for air conditioner compressor |
| CN202885167U (en) * | 2012-09-24 | 2013-04-17 | 宁波奥克斯空调有限公司 | Control device used for detecting right-wrong status of wiring of compressor of air conditioner |
| CN103388579A (en) * | 2012-05-08 | 2013-11-13 | 珠海格力电器股份有限公司 | Compressor over-current protection method for air conditioning equipment and air conditioning equipment |
| CN104728989A (en) * | 2013-12-18 | 2015-06-24 | 珠海格力电器股份有限公司 | Defrosting control method of air conditioner and air conditioner carrying out defrosting control method |
| CN105890247A (en) * | 2016-04-08 | 2016-08-24 | 广东美的制冷设备有限公司 | Air conditioner, and control method and device for compressor of air conditioner |
| CN205533145U (en) * | 2016-01-22 | 2016-08-31 | 芜湖美智空调设备有限公司 | Air conditioner, compressor system and controlling means thereof |
-
2017
- 2017-06-16 CN CN201710462668.1A patent/CN107192022A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181836Y (en) * | 2008-04-02 | 2009-01-14 | Tcl集团股份有限公司 | Protecting equipment for air conditioner compressor |
| CN103388579A (en) * | 2012-05-08 | 2013-11-13 | 珠海格力电器股份有限公司 | Compressor over-current protection method for air conditioning equipment and air conditioning equipment |
| CN202885167U (en) * | 2012-09-24 | 2013-04-17 | 宁波奥克斯空调有限公司 | Control device used for detecting right-wrong status of wiring of compressor of air conditioner |
| CN104728989A (en) * | 2013-12-18 | 2015-06-24 | 珠海格力电器股份有限公司 | Defrosting control method of air conditioner and air conditioner carrying out defrosting control method |
| CN205533145U (en) * | 2016-01-22 | 2016-08-31 | 芜湖美智空调设备有限公司 | Air conditioner, compressor system and controlling means thereof |
| CN105890247A (en) * | 2016-04-08 | 2016-08-24 | 广东美的制冷设备有限公司 | Air conditioner, and control method and device for compressor of air conditioner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992113A (en) * | 2017-12-19 | 2018-05-04 | 广东美的制冷设备有限公司 | Pressure limiting method, pressure limiting device and temperature control device |
| CN110017593A (en) * | 2019-03-11 | 2019-07-16 | 青岛海尔空调电子有限公司 | Net for air-source heat pump units and its control method and device, storage medium |
| CN110017593B (en) * | 2019-03-11 | 2022-05-20 | 青岛海尔空调电子有限公司 | Air source heat pump unit, control method and device thereof and storage medium |
| CN110567098A (en) * | 2019-09-23 | 2019-12-13 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device, air conditioner and storage medium |
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