CN109990439A - A kind of control method, control device and air conditioner that the commutation of air-conditioning four-way valve is abnormal - Google Patents
A kind of control method, control device and air conditioner that the commutation of air-conditioning four-way valve is abnormal Download PDFInfo
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- CN109990439A CN109990439A CN201910272275.3A CN201910272275A CN109990439A CN 109990439 A CN109990439 A CN 109990439A CN 201910272275 A CN201910272275 A CN 201910272275A CN 109990439 A CN109990439 A CN 109990439A
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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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
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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
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides the control methods that a kind of commutation of air-conditioning four-way valve is abnormal, control device and air conditioner, it is related to air-conditioning technical field, it include: that heating mode is opened, detect inner disc temperature Tn and indoor environment temperature Ti, run the first duration t1, carry out the first judgement, first judgement includes calculating the difference △ T1 of the indoor environment temperature Ti and inner disc temperature Tn and judging whether the difference △ T1 is more than or equal to the first preset value T1, it is to be judged as four-way valve commutation exception and carry out protective program, otherwise it is judged as that four-way valve commutation is normal, air-conditioning operates normally.Air-conditioning four-way valve commutation of the present invention abnormal control method, control device and air conditioner, it is compared in a heating mode by indoor environment temperature and coil temperature, judge whether four-way valve commutates success, and fault warning is issued in four-way valve commutation failure, close compressor prevents air conditioner compressor after four-way valve commutates exception from still working and blowing cold air in a heating mode.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of control method that the commutation of air-conditioning four-way valve is abnormal, control
Device and air conditioner.
Background technique
In the prior art, four-way reversing valve realizes the phase between refrigeration and heating in the flow direction in pipeline by changing refrigerant
Mutually conversion.For example, a kind of method of operation are as follows: be refrigeration mode when four-way reversing valve is uncharged when, refrigerant goes out from compressor
Come, first passes through four-way reversing valve and enter condenser cooling, then throttle and enter the room machine evaporator；When four-way reversing valve charges
When be heating mode, refrigerant comes out from compressor, machine heat exchanger is entered the room by four-way reversing valve, then throttling go forward side by side
Enter outdoor unit heat exchanger heat absorption.
However, existing air conditioner deposit in a heating mode occur due to brownout four-way valve commutation it is unsuccessful existing
As, cause air conditioner to be blown a cold wind in heating mode, leads to the reduction of room temperature temperature, influence demand of the user to heat, and
And when four-way valve commutates abnormal, air conditioner can not blow out hot wind, be unable to satisfy the demand to heat.
Summary of the invention
In view of this, the abnormal control method the present invention is directed to propose a kind of air-conditioning four-way valve commutates, to solve existing skill
Air-conditioning four-way valve commutation failure in a heating mode in art, and blowing cold air, influence demand of the user to heat.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of control method that the commutation of air-conditioning four-way valve is abnormal, comprising:
Heating mode is opened, and detection inner disc temperature Tn and indoor environment temperature Ti run the first duration t1, is carried out first and is sentenced
Break, first judgement includes calculating described in difference DELTA T1 and the judgement of the indoor environment temperature Ti and inner disc temperature Tn
Whether difference DELTA T1 is more than or equal to the first preset value T1, is to be judged as four-way valve commutation exception and carry out protective program, otherwise
It is judged as that four-way valve commutation is normal, air-conditioning operates normally.
Further, the protective program includes: close compressor, and/or opens failure and remind.
Further, first judgement further include:
When judging result is four-way valve commutation exception and carries out the protective program, record judges number Fn, judges institute
It states and judges whether number Fn is greater than preset times F1,
The judgement number Fn is greater than the preset times F1 and is then judged as four-way valve commutation exception and carries out protective program,
And control outdoor unit shutdown.
Further, first judgement further include:
When the judgement number Fn is less than or equal to the preset times F1, start compressor, inspection by heating mode again
It surveys inner disc temperature Tn and indoor environment temperature Ti and re-starts the first judgement, until the judgement number Fn is less than or equal to described
The preset times F1 or difference DELTA T1 is less than the first preset value T1.
Further, it is described again by heating mode starting compressor when, run the second duration t2 after, then again detection in
Disk temperature Tn and indoor environment temperature Ti simultaneously re-starts the first judgement.
Further, the control method further include:
When the judging result that described first judges commutates exception and when carrying out protective program as four-way valve, also carries out second and sentence
Disconnected, second judgement includes judging whether the indoor environment temperature Ti is more than or equal to the second preset value T2,
The indoor environment temperature Ti is more than or equal to the second preset value T2 and then opens auxiliary heat function, and blower is adjusted to low wind
Gear operation.
Further, the control method further include:
When the judging result that described first judges commutates exception and when carrying out protective program as four-way valve, setting temperature is also calculated
The difference DELTA T2 of Ts and the indoor environment temperature Ti are spent, carries out third judgement, the third judgement includes judging the difference
Whether Δ T2 is less than or equal to third preset value T3,
The difference DELTA T2 is less than or equal to the third preset value T3 and then opens auxiliary heat function, and blower is adjusted to low windscreen fortune
Row.
Compared with the existing technology, the abnormal control method of air-conditioning four-way valve commutation of the present invention has the advantage that
The abnormal control method of air-conditioning four-way valve commutation of the present invention, passes through indoor environment temperature in a heating mode
It is compared with air-conditioning internal coil temperature, judges whether four-way valve commutates success, and send out in time in four-way valve commutation failure
Be out of order alarm, and close compressor, prevents air conditioner compressor after four-way valve commutates exception from still working and heating mould
Blowing cold air under formula；Control method of the present invention when four-way valve commutation is abnormal in a heating mode, can open auxiliary heat temporarily
Meet the needs of user is to heat, while solving the problems, such as the unsuccessful caused compressor reliability of four-way valve commutation.
Another object of the present invention is to propose a kind of control device that the commutation of air-conditioning four-way valve is abnormal, comprising:
Sensor for detecting indoor environment temperature Ti and inner disc temperature Tn, and is sent to sensor；
Controller, for being judged according to the indoor environment temperature Ti and inner disc temperature Tn, according to judging result control
Air conditioner processed carries out protective program.
Further, the control device further includes display screen and/or buzzer, for judging that air-conditioning four-way valve changes
Failure prompting is carried out when to exception.
The abnormal control device of the air-conditioning four-way valve commutation control method phase abnormal with the commutation of above-mentioned air-conditioning four-way valve
Identical for advantage possessed by the prior art, details are not described herein.
Another object of the present invention is to propose a kind of air conditioner, abnormal including air-conditioning four-way valve commutation described above
Control device.
The air conditioner and the abnormal control device of above-mentioned air-conditioning four-way valve commutation are possessed excellent compared with the existing technology
Gesture is identical, and details are not described herein.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the abnormal control method flow diagram one of the commutation of air-conditioning four-way valve described in the embodiment of the present invention；
Fig. 2 is the abnormal control method flow diagram two of the commutation of air-conditioning four-way valve described in the embodiment of the present invention；
Fig. 3 is step S5 flow diagram described in the embodiment of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In the description of the present invention, it should be noted that the term " first " that is previously mentioned in an embodiment of the present invention,
" second " is used for description purposes only, and can not be interpreted as indication or suggestion relative importance or implicitly indicate indicated technology
The quantity of feature.Define " first " as a result, the feature of " second " can explicitly or implicitly include it is one or more
This feature.
In the present invention, the range description of such as A~B, includes two end values of A and B.
Embodiment one
A kind of control method that the commutation of air-conditioning four-way valve is abnormal is present embodiments provided, as shown in connection with fig. 1, including is walked as follows
It is rapid:
Step S1, air conditioner heat-production mode is opened, and is run in a heating mode, and the judgement and control basis of this method are
Air conditioner carries out under heating mode operating status, when being in non-heating mode, without control method of the present invention；
Step S2, under heating mode operation, inner disc temperature Tn and indoor environment temperature Ti is detected, the inner disc temperature is
Refer to the coil temperature of indoor unit, Jiao Jiadi, real-time detection inner disc temperature Tn and indoor environment temperature Ti, when entering deterministic process
When, judged based on entering the inner disc temperature Tn and indoor environment temperature Ti that judge the moment；
Step S3, the first duration of operation of air conditioner t1, when this step refers to that air-conditioning runs first after heating mode unlatching
Long t1 prevents heating mode from opening so that air-conditioning, after heating mode unlatching, operation a period of time enters back into following deterministic processes
Inner disc temperature does not change with indoor environment and can not accurately be judged when opening the moment, and preferably, air-conditioning can run
Start to detect inner disc temperature Tn and indoor environment temperature Ti again after first duration t1, or terminates when the first duration t1 fastly in detection
When the initial time of disk temperature Tn and indoor environment temperature Ti, detection inner disc temperature Tn and indoor environment temperature Ti can be according to first
Long t1 is determined, in the present embodiment, for different air conditioner types, due to fast-refrigerating ability and compressor, refrigeration pipe system etc.
Related, so the value of the first duration t1 can be adjusted according to specific model, the first duration t1 of general household type exists
It is preferably 120 seconds within the scope of 20~300 seconds；
Step S4, after running the first duration t1, the first judgement is carried out, first judgement includes, according in detection
Disk temperature Tn and indoor environment temperature Ti calculates the difference DELTA T1 of indoor environment temperature Ti and inner disc temperature Tn, and described in judgement
Whether difference DELTA T1 is more than or equal to the first preset value T1, is to be judged as four-way valve commutation exception and carry out protective program, otherwise
Be judged as that four-way valve commutation is normal, air-conditioning is by heating mode normal operation, in the present embodiment, the first preset value T1 5~
It is preferably 10 DEG C within the scope of 15 DEG C, i.e., is judged as four-way valve commutation exception when difference is greater than 10 DEG C and carries out protective program, protect
Protecting program includes close compressor, and/or opens failure and remind.
Each step of control method of the present invention is carried out under heating mode operating status, all at this
The change of air conditioning operating mode occurs during the progress of invention control method, so that air-conditioning exits heating mode, exits this
The invention control method reenters control method of the present invention when air-conditioning is again turned on heating mode.
Control method of the present invention, it is pre- by the difference DELTA T1 and first of indoor environment temperature Ti and inner disc temperature Tn
If the size of value T1 compares, when four-way valve commutates successfully, since the higher refrigerant of temperature enters indoor unit coil pipe, make
It is smaller to obtain difference DELTA T1, and less than the first preset value T1, but when four-way valve commutation failure, the lower refrigerant of temperature is entered
Indoor unit coil pipe, so that coil temperature is also lower than indoor environment temperature, and indoor environment temperature and indoor unit coil temperature
Difference DELTA T1 it is larger, and be greater than the first preset value T1, the present invention compares the difference DELTA T1 and the first preset value T1,
The accuracy for improving judgement determines that air conditioner blows out hot wind in a heating mode, and the higher refrigerant of temperature enters room
Four-way valve is just predicated when interior machine coil pipe to commutate successfully, improves the accuracy of judgement.
The first preset value T1 is preferably 10 DEG C within the scope of 5~15 DEG C in the present invention, illustrates that air-conditioning is to be made
It is cold, and temperature is to continue to decline, and further demonstrates that it is caused by four-way valve commutation is unsuccessful, if the first preset value T1 is arranged
Numerical value it is too small, such as 1 DEG C, within a period of time just started, situations such as refrigerating fluid is insufficient, outer machine freezes, low-voltage starting
Under still will appear low temperature refrigerant and lead to the of short duration reduction of indoor unit coil temperature in startup stage, lead to be mistaken for four-way valve to change
To, the present invention by reasonable numerical value combination duplicate acknowledgment, the source of failure can be effectively confirmed, avoid that there is a situation where judge by accident.
The present invention passes through indoor environment temperature in a heating mode and compares with air-conditioning internal coil temperature, judges four-way
Whether valve commutates success, and issues fault warning, and close compressor in time in four-way valve commutation failure, prevents air conditioner from existing
The four-way valve compressor after exception that commutates still works and blowing cold air in a heating mode；Control method of the present invention,
When four-way valve commutation is abnormal under heating mode, auxiliary heat can be opened and temporarily meet the needs of user is to heat, while solving four-way
Compressor reliability problem caused by valve commutation is unsuccessful.
General air-conditioning can not individually open auxiliary heat function, be that coolant system heating is preferential, be then then turned on auxiliary hot merit
Can, auxiliary heat heating is individually opened, the power consumption of air-conditioning increases, and power consumption increases, while being easy to appear and being unable to satisfy heating needs
Situation.This programme is the emergency plan used in the case where system breaks down, is able to solve four-way valve commutation failure and brings
Heating problem individually open auxiliary heat in combination with the decision logic to auxiliary heat function, can satisfy heating require, overcome
Technology prejudice.
Embodiment two
When four-way valve is abnormal, mostly four-way valve must not conductance cause, and there are certain reasons to lead to four-way valve
Once must not electricity, and restart after can again it is electric, for the single must not electricity situation, the present embodiment is in embodiment one
On the basis of, as shown in connection with fig. 2, when carry out step S4 first judges, when judging result is four-way valve commutation exception and is carried out
When protective program, record judges number Fn, judges described to judge whether number Fn is greater than preset times F1, the judgement number Fn
Then it is judged as four-way valve commutation exception greater than the preset times F1 and carries out protective program, while outdoor unit is shut down, it is described to sentence
Disconnected number Fn is less than or equal to the preset times F1 and then opens compressor by heating mode again, after running the second duration t2, weight
New detection inner disc temperature Tn and indoor environment temperature Ti simultaneously re-starts the first judgement, and it is different to judge whether four-way valve commutates again
Often, until the judgement number Fn is less than or equal to the preset times F1 or difference DELTA T1 less than the first preset value T1.
In the present embodiment, the value range of preset times F1 is 2~5, and preferably, preset times F1 value is 2, that is, is carried out
Judge twice, when the result judged twice is that four-way valve commutation is abnormal, just predicates four-way valve commutation exception, improve this
The invention judgement accuracy abnormal to four-way valve commutation.
Embodiment three
The present embodiment solves in the prior art, on the basis of embodiment one or embodiment two when air-conditioning local environment
When temperature is higher and demand air-conditioning has heat output, four-way valve commutation is abnormal cause air-conditioning can not normal heat supply the problem of, specifically
Solution as shown in connection with fig. 3, when in step S4 the first judging result judged be the difference DELTA T1 be more than or equal to first
Preset value T1 when carrying out protective program, also carries out the second judgement, the specific steps of second judgement are as follows:
Step S5, judge whether indoor environment temperature Ti is more than or equal to the second preset value T2, when the indoor environment temperature
Ti opens auxiliary heat function when being more than or equal to the second preset value T2, blower is adjusted to low windscreen operation, as indoor environment temperature Ti
Auxiliary heat function is not turned on when less than the second preset value T2, air conditioner continues protective program, and closes wind-guiding door.
Example IV
The present embodiment on the basis of the above embodiments, is gone forward side by side in the judging result that first judges as four-way valve commutation is abnormal
When row protective program, the difference DELTA T2 of set temperature Ts and current indoor environment temperature Ti are also calculated, and carries out third judgement, the
Three are judged as and judge whether the difference DELTA T2 is less than or equal to third preset value T3, when to be less than or equal to third pre- by the difference DELTA T2
If when value T3, then opening spoke heat function, blower is adjusted to low windscreen operation, when the difference DELTA T2 is greater than third preset value T3,
It is then not turned on spoke heat function, for the third preset value T3 within the scope of 2~10 DEG C, preferable is 7 minutes.
When user demand temperature and environment temperature are not much different, user demand can be met using auxiliary heat, when demand temperature
When degree differs larger with environment temperature, auxiliary heat is unable to satisfy demand, is not easy using auxiliary heat, the present embodiment carries out third judgement, has
The problem of preventing auxiliary heat from still opening spoke heat when being unable to satisfy heat demand, causing resource and energy waste of effect, is also prevented from use
Family cannot get the heat of demand in operation of air conditioner and complain.
Embodiment five
The present embodiment provides a kind of control dress that the commutation of air-conditioning four-way valve is abnormal on the basis of the various embodiments described above
It sets, can be realized the abnormal control method of the commutation of air-conditioning four-way valve described in the various embodiments described above, specifically include temperature sensing
Device and controller, temperature sensor is for detecting indoor environment temperature Ti and inner disc temperature Tn, and the temperature value transmission that will test
To sensor, the sensor according to indoor environment temperature Ti and inner disc temperature Tn for being judged, according to judging result control
Air conditioner processed carries out protective program.
When air conditioner is opened according to heating mode, control device detects indoor environment temperature and inner disc temperature, operation first
After duration, the difference of indoor environment temperature and inner disc temperature is calculated, and the difference and the first preset value are subjected to size comparison,
The difference is determined as that four-way valve commutation is abnormal and close compressor, unlatching failure are reminded when being more than or equal to the first preset value；When
It is determined as that four-way valve commutation is normal when the difference is less than the first preset value, air-conditioning is operated normally by heating mode.
Preferably, when control device first time judging result is that the difference is more than or equal to the first preset value, pressure is closed
Contracting machine, and compressor is opened by heating mode again again after waiting the second duration, the first judgement is carried out again, and realization is repeatedly sentenced
It is disconnected, judge that number can determines according to actual conditions, the present invention is improved by the case where repeatedly judging, preventing single from judging by accident appearance
The judgement accuracy abnormal to four-way valve commutation.
When above-mentioned judging result is that four-way valve commutation is abnormal and close compressor continues to judge room when unlatching failure is reminded
Whether interior environment temperature is more than or equal to the second preset value, opens when the indoor environment temperature is more than or equal to second preset value
Auxiliary heat function is opened, blower is adjusted to low windscreen operation, is not turned on auxiliary hot merit when indoor environment temperature is less than second preset value
Can, air conditioner continues protective program, and closes wind-guiding door.
Embodiment six
The present embodiment provides a kind of air conditioner on the basis of embodiment five, including sky described in the various embodiments described above
The control device for adjusting four-way valve commutation abnormal, and can realize the abnormal control of the commutation of air-conditioning four-way valve described in the various embodiments described above
Method.
Air conditioner is existed when receiving the heating mode open signal that user is issued by equipment such as remote controlers by setting
Temperature sensor detection indoor environment temperature and inner disc temperature on air-conditioning, after running the first duration, the counting chamber in controller
The difference of interior environment temperature and inner disc temperature, and the difference and the first preset value are subjected to size comparison, when judging result is
The close compressor when difference is more than or equal to the first preset value is opened failure and is reminded；When the difference is less than the first preset value
When be determined as that four-way valve commutation is normal, air-conditioning is by heating mode normal operation, and four-way valve commutates successfully at this time.
Air conditioner is repeatedly restarted and is judged when judging whether four-way valve is abnormal, and prevents the erroneous judgement of single from causing
The mistake of judging result improves the judgement accuracy abnormal to four-way valve commutation.
When air conditioner is judged as that four-way valve commutation is abnormal, close compressor continues to judge indoor ring when opening failure prompting
Whether border temperature is more than or equal to the second preset value, opens when the indoor environment temperature is more than or equal to second preset value auxiliary
Heat function, blower is adjusted to low windscreen operation, is not turned on auxiliary heat function when indoor environment temperature is less than second preset value, empty
It adjusts device to continue protective program, and closes wind-guiding door.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of control method that the commutation of air-conditioning four-way valve is abnormal characterized by comprising
Heating mode is opened, and detection inner disc temperature Tn and indoor environment temperature Ti run the first duration t1, carries out the first judgement,
First judgement includes calculating the difference DELTA T1 of the indoor environment temperature Ti and inner disc temperature Tn and judging the difference
Whether value Δ T1 is more than or equal to the first preset value T1, is to be judged as four-way valve commutation exception and carry out protective program, otherwise sentences
Break normal for four-way valve commutation, air-conditioning operates normally.
2. the abnormal control method of air-conditioning four-way valve commutation according to claim 1, which is characterized in that the protective program
Include: close compressor, and/or opens failure and remind.
3. the abnormal control method of air-conditioning four-way valve commutation according to claim 2, which is characterized in that first judgement
Further include:
When judging result is four-way valve commutation exception and carries out the protective program, record judges number Fn, sentences described in judgement
Whether disconnected number Fn is greater than preset times F1,
The judgement number Fn is greater than the preset times F1 and is then judged as four-way valve commutation exception and carries out protective program, and controls
Outdoor unit processed is shut down.
4. the abnormal control method of air-conditioning four-way valve commutation according to claim 3, which is characterized in that first judgement
Further include:
When the judgement number Fn is less than or equal to the preset times F1, start compressor by heating mode again, in detection
Disk temperature Tn and indoor environment temperature Ti simultaneously re-starts the first judgement, until the judgement number Fn is less than or equal to described preset
The number F1 or difference DELTA T1 is less than the first preset value T1.
5. the abnormal control method of air-conditioning four-way valve commutation according to claim 3, which is characterized in that described again by system
When heat pattern starts compressor, after running the second duration t2, then detection inner disc temperature Tn and indoor environment temperature Ti lays equal stress on again
It is new to carry out the first judgement.
6. the abnormal control method of air-conditioning four-way valve commutation according to claim 1 to 4, which is characterized in that the control
Method processed further include:
When the judging result that described first judges commutates exception and when carrying out protective program as four-way valve, the second judgement is also carried out,
Second judgement includes judging whether the indoor environment temperature Ti is more than or equal to the second preset value T2,
The indoor environment temperature Ti is more than or equal to the second preset value T2 and then opens auxiliary heat function, and blower is adjusted to low windscreen fortune
Row.
7. the abnormal control method of air-conditioning four-way valve commutation according to claim 1 to 4, which is characterized in that the control
Method processed further include:
When the judging result that described first judges commutates exception and when carrying out protective program as four-way valve, also calculating set temperature Ts
With the difference DELTA T2 of the indoor environment temperature Ti, third judgement is carried out, the third judgement includes judging the difference DELTA T2
Whether third preset value T3 is less than or equal to,
The difference DELTA T2 is less than or equal to the third preset value T3 and then opens auxiliary heat function, and blower is adjusted to low windscreen operation.
8. a kind of control device that the commutation of air-conditioning four-way valve is abnormal characterized by comprising
Temperature sensor for detecting indoor environment temperature Ti and inner disc temperature Tn, and is sent to sensor；
Controller, it is empty according to judging result control for being judged according to the indoor environment temperature Ti and inner disc temperature Tn
Device is adjusted to carry out protective program.
9. a kind of abnormal control device of air-conditioning four-way valve commutation, which is characterized in that the control device further include display screen and/
Or buzzer, for carrying out failure prompting when judging that the commutation of air-conditioning four-way valve is abnormal.
10. a kind of air conditioner, which is characterized in that commutate including any air-conditioning four-way valve of the claims 8 or 9 abnormal
Control device.
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| CN201910272275.3A CN109990439B (en) | 2019-04-04 | 2019-04-04 | Control method and control device for abnormal reversing of air conditioner four-way valve and air conditioner |
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| CN201910272275.3A CN109990439B (en) | 2019-04-04 | 2019-04-04 | Control method and control device for abnormal reversing of air conditioner four-way valve and air conditioner |
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| CN110470038A (en) * | 2019-08-21 | 2019-11-19 | 南京天加环境科技有限公司 | A kind of judgement and guard method that unit air-conditioner booting is abnormal |
| CN110895062A (en) * | 2019-11-11 | 2020-03-20 | 珠海格力电器股份有限公司 | Control method and device of heat pump system, storage medium and heat pump system |
| CN111271820A (en) * | 2020-03-04 | 2020-06-12 | 南京天加环境科技有限公司 | Method for judging failure of four-way valve of air-cooled air conditioning unit |
| CN111520816A (en) * | 2020-05-13 | 2020-08-11 | 宁波奥克斯电气股份有限公司 | Method and device for detecting reversing abnormality of four-way valve, air conditioner and storage medium |
| CN111595003A (en) * | 2020-05-29 | 2020-08-28 | 广东美的暖通设备有限公司 | Air conditioner detection method and device and air conditioner |
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| CN111595003A (en) * | 2020-05-29 | 2020-08-28 | 广东美的暖通设备有限公司 | Air conditioner detection method and device and air conditioner |
| CN114484726A (en) * | 2020-10-23 | 2022-05-13 | 广东美的制冷设备有限公司 | Reversing abnormity detection method of four-way valve, air conditioner and readable storage medium |
| CN113551371A (en) * | 2021-07-31 | 2021-10-26 | 广东美的制冷设备有限公司 | Method and device for detecting states of high-pressure valve and low-pressure valve of air conditioner, air conditioner and medium |
| WO2023010636A1 (en) * | 2021-07-31 | 2023-02-09 | 广东美的制冷设备有限公司 | Method and device for detecting state of high-and-low pressure valve of air conditioner, air conditioner, and medium |
| CN115183347A (en) * | 2022-06-21 | 2022-10-14 | 青岛海尔空调电子有限公司 | Control method of air conditioning system and air conditioning system |
| CN115183347B (en) * | 2022-06-21 | 2024-06-07 | 青岛海尔空调电子有限公司 | Control method of air conditioning system and air conditioning system |
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