CN106839255A - Convertible frequency air-conditioner sensor fault processing method - Google Patents
Convertible frequency air-conditioner sensor fault processing method Download PDFInfo
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- CN106839255A CN106839255A CN201611072101.5A CN201611072101A CN106839255A CN 106839255 A CN106839255 A CN 106839255A CN 201611072101 A CN201611072101 A CN 201611072101A CN 106839255 A CN106839255 A CN 106839255A
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- 238000003672 processing method Methods 0.000 title claims abstract description 24
- 238000004378 air conditioning Methods 0.000 claims abstract description 187
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000005057 refrigeration Methods 0.000 claims abstract description 10
- 238000007791 dehumidification Methods 0.000 claims abstract description 4
- 230000004224 protection Effects 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 6
- 108010053481 Antifreeze Proteins Proteins 0.000 claims description 4
- 230000002528 anti-freeze Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
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Abstract
The present invention relates to convertible frequency air-conditioner sensor fault processing method; when indoor environment temperature sensor failure; air-conditioning is not shut down; the running frequency of compressor is 70% of the maximum allowable frequency under current working; during indoor coil pipe sensor failure; under refrigeration or dehumidification mode, compressor is by continuously running more than time t1Dead time t afterwards2To circulate execution, during outdoor environment temperature sensor failure, the outer blower fan of air-conditioning blows wind high, frequency converter enters external environment temperature and limits frequency pattern, during outdoor coil temperature sensor failure, in a heating mode, frequency converter enters external environment temperature and limits frequency pattern, when compressor exhaust temperature sensor failure, air-conditioning performs shutdown, when compressor return air temperature sensor breaks down, air-conditioning does not perform shutdown, and continue normal operation, this method flexible operation, convertible frequency air-conditioner can be made to remain to normally use when operative sensor breaks down, improve client's user satisfaction.
Description
Technical field
The present invention relates to transducer air conditioning field, more particularly, to a kind of air conditioning sensor fault handling method.
Background technology
With the development of science and technology, convertible frequency air-conditioner has also slowly entered into huge numbers of families, provides the user comfortable environment.
With the progress of economic environment, people are to the comfort level of convertible frequency air-conditioner also more and more higher.Convertible frequency air-conditioner in the market is mostly
It is with following sensor：Indoor environment temperature sensor, indoor coil pipe sensor, outdoor environment temperature sensing
Device, outdoor coil temperature sensor, compressor exhaust temperature sensor and compressor return air temperature sensor, prior art
In, the sensor of convertible frequency air-conditioner will at once cause shutdown, it is easy to cause once being broken down because of short-circuit or open circuit
Air conditioner refrigerating or the effect for heating are undesirable, and short circuit or open circuit occurs in this sensor will not cause what too major break down was just shut down
Phenomenon easily suffers customer complaint, and substantially reduces satisfaction of the client to air-conditioning.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of flexible operation, can make convertible frequency air-conditioner in operative sensor
Remain to normally use when breaking down, improve the convertible frequency air-conditioner sensor fault processing method of client's user satisfaction.
The technical solution adopted in the present invention is, convertible frequency air-conditioner sensor fault processing method, the sensor of convertible frequency air-conditioner
Including interior sensor and outdoor sensor, the interior sensor includes indoor environment temperature sensor, indoor coil pipe
Sensor, the outdoor sensor includes outdoor environment temperature sensor, outdoor coil temperature sensor, compressor exhaust temperature
Sensor and compressor return air temperature sensor, when one or several sensor failures of convertible frequency air-conditioner, frequency conversion is empty
Tune is carried out by the following method：
(1), when indoor environment temperature sensor failure：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device E1 Chang Liang of air-conditioning, air-conditioning is not performed
Shut down, now the running frequency of compressor is 70% of the maximum allowable frequency under present behavior, and other protections are still effective；
(2), when indoor coil pipe sensor failure：
Under refrigeration or dehumidification mode, the indoor display device E3 Chang Liang of air-conditioning, now conventional anti-freeze defencive function
No longer valid, compressor is according to continuously running more than time t1Dead time t afterwards2To circulate execution；
Under the pattern for heating or divulging information, the indoor display device E3 Chang Liang of air-conditioning, air-conditioning confirms that indoor coil pipe is passed
Sensor failure simultaneously performs shutdown；
(3), when outdoor environment temperature sensor failure：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device F6 Chang Liang of air-conditioning, air-conditioning is not performed
Shut down and normally run, now the outer blower fan of air-conditioning blows wind high, and compressor is in outer blower fan opening time t3After be then turned on, frequency converter
Detection outdoor environment temperature simultaneously enters external environment temperature limit frequency pattern, and other protections are still effective；
(4), when outdoor coil temperature sensor failure：
Under the pattern freezed or dehumidify, the indoor display device E2 Chang Liang of air-conditioning, if the anti-overheat of the external disk of air-conditioning is protected
Shield is invalid, and air-conditioning continues to run until appearance once anti-overtemperature protection, then confirm outer coil pipe temperature sensor fault, and air-conditioning is held
Row is shut down, if the anti-overtemperature protection of the external disk of air-conditioning effectively, confirms outer coil pipe temperature sensor fault, air-conditioning performs shutdown；
Heat or air vent mode under, the indoor display device E2 Chang Liang of air-conditioning, frequency converter detection outdoor environment temperature simultaneously
Frequency pattern is limited into external environment temperature, when frequency converter detects external environment temperature more than or equal to the default reference temperature value of frequency converter
During a, then air-conditioning continues to heat, and maximum running frequency is FT1；If external environment temperature is less than reference temperature value a, external disk is confirmed
Pipe temperature sensor fault, air-conditioning performs shutdown, and timely external environment temperature is increased beyond reference temperature value a, does not also recover to heat；
(5), when compressor exhaust temperature sensor failure：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device F4 Chang Liang of air-conditioning, air-conditioning confirms pressure
Contracting machine exhaust gas temperature sensor breaks down, and performs shutdown；
(6), when compressor return air temperature sensor breaks down：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device FA Chang Liang of air-conditioning, air-conditioning is not performed
Shut down, and continue normal operation；
(7), when having two air conditioning sensors while when breaking down：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device of air-conditioning is paid the utmost attention to quote generation
The failure code of that sensor of shutdown occurs during failure, if all without occurring stopping during two sensor failures
Machine, then the indoor display device of air-conditioning quotes the failure code of one of sensor at random, then air-conditioning performs shutdown, this
The situation that air-conditioning resumes operation afterwards needs to recover normal situation according to two fault sensors to be determined；
(8), when the air conditioning sensor for having three or more than three is while when breaking down：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device of air-conditioning quotes one of them at random
Failure code, air-conditioning performs shutdown, when the number of sensors for breaking down drops to two, now just considers that air-conditioning recovers fortune
Capable situation, the indoor display device of air-conditioning again can according to two sensor failures when situation is reported to be shown, this
When air-conditioning situation about resuming operation need to recover normal situations according to two fault sensors to be determined.
When outdoor coil temperature sensor failure, under the pattern of refrigeration or dehumidifying, the anti-overtemperature protection of external disk of air-conditioning
The highest frequency of compressor operating is the first platform frequency FT1 when invalid.
When indoor coil pipe sensor or exhaust gas temperature sensor break down, inner blower in a heating mode
Must be in time period t4It is interior to perform shut down action, the time period t4It is 0~1min.
When outdoor coil temperature sensor failure, under heating mode, if external environment temperature is less than reference temperature value a
When, inner blower must be in time period t5It is interior to perform shut down action, the time period t5It is 0~1min.
When indoor environment temperature sensor or indoor coil pipe sensor or outdoor environment temperature sensor or outdoor
When coil temperature sensor or compressor exhaust temperature sensor or compressor return air temperature sensor, in refrigeration, dehumidifying
Or under the pattern of ventilation, only inner blower itself fail, otherwise inner blower must run according to the wind speed of setting.
When indoor environment temperature sensor or outdoor environment temperature sensor or compressor return air temperature sensor occur
During failure, under heating mode, inner blower performs the action that shuts down.
2nd, two air conditioning sensors break down simultaneously or the air conditioning sensor of more than three is while when breaking down,
The indoor set of air-conditioning can send stopping signal to outdoor unit, and now inner blower must be in time period t6Interior execution shuts down dynamic
Make, the time period t5It is 0~1min.
The indoor display device can be the display module in room conditioning on machine housing face-plate, or airconditioning control
Display module on display module in remote control, or air-conditioning internal machine inner control panel.
When outdoor environment temperature sensor failure, compressor is detected first when entering external environment temperature limit frequency pattern
To external environment temperature for compressor just open when outer coil temperature.
When indoor coil pipe sensor failure, the time t that the compressor operating exceedes1It is 30min, pauses
Time t2It is 5min.
When outdoor environment temperature sensor failure, the opening time t of the outer blower fan3It is 5s.
When outdoor coil temperature sensor failure, in a heating mode, frequency converter preset reference temperature value a is 7
℃。
When having two air conditioning sensors while when breaking down, the situation that the air-conditioning resumes operation needs to be passed according to failure
The specific situation that sensor recovers normal situation to be determined includes：
(1), when the sensor for breaking down is two interior sensors, if one of interior sensor recovers just
Often, air-conditioning just resumes operation；If two interior sensors all recover normal, air-conditioning normally runs, and indoor display device is no longer
Report failure code；
(2), when the sensor for breaking down includes an interior sensor and an outdoor sensor, room is only occurred
Outer sensor recovers normal, and air-conditioning can just resume operation；If interior sensor recovers normal, air-conditioning does not recover fortune
OK, if interior sensor and outdoor sensor all recover normal, air-conditioning normally runs, and indoor display device no longer reports failure generation
Code；
(3), when the sensor for breaking down is two outdoor sensors, only when the sensor of display failure code is extensive
When multiple normal, air-conditioning just resumes operation；If interior sensor and outdoor sensor all recover normal, air-conditioning normally runs, room
Interior display device no longer reports failure code.
When the sensor for breaking down is two interior sensors, if one of interior sensor recovers just
Often, the running status that air-conditioning resumes operation is run according to method of operation when not recovering normal that sensor failure.
It is when the sensor for breaking down includes an interior sensor and an outdoor sensor if outdoor
Sensor recovers normal, and the running status that air-conditioning resumes operation is according to the fortune do not recovered when normal interior sensor breaks down
Line mode runs.
When the sensor for breaking down is two outdoor sensors, if the sensor of display failure code recovers just
Often, the running status that air-conditioning resumes operation is according to the method for operation do not recovered when normal that outdoor sensor breaks down
Operation.
The beneficial effects of the invention are as follows：When the operative sensor of convertible frequency air-conditioner breaks down, convertible frequency air-conditioner is remained to normally
Use, and in sensor failure, air-conditioning can take the flexible method of operation, so as to improve client use air-conditioning
Satisfaction, reduce the trouble brought to client when breaking down of sensor.
Specific embodiment
Invention is further described below in conjunction with specific embodiment, to make those skilled in the art with reference to specification word
Can implement according to this, the scope of the present invention is not limited to the specific embodiment.
The present invention relates to convertible frequency air-conditioner sensor fault processing method, the sensor of convertible frequency air-conditioner include interior sensor and
Outdoor sensor, the interior sensor includes indoor environment temperature sensor, indoor coil pipe sensor, the outdoor biography
Sensor includes outdoor environment temperature sensor, outdoor coil temperature sensor, compressor exhaust temperature sensor and compressor
Suction temperature sensor, when one or several sensor failures of convertible frequency air-conditioner, convertible frequency air-conditioner enters by the following method
OK：
(1), when indoor environment temperature sensor failure：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device E1 Chang Liang of air-conditioning, air-conditioning is not performed
Shut down, now the running frequency of compressor is 70% of the maximum allowable frequency under present behavior, and other protections are still effective；
(2), when indoor coil pipe sensor failure：
Under refrigeration or dehumidification mode, the indoor display device E3 Chang Liang of air-conditioning, now conventional anti-freeze defencive function
No longer valid, compressor runs more than after time 30min dead time 5min to circulate execution according to continuous；
Under the pattern for heating or divulging information, the indoor display device E3 Chang Liang of air-conditioning, air-conditioning confirms that indoor coil pipe is passed
Sensor failure simultaneously performs shutdown；
(3), when outdoor environment temperature sensor failure：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device F6 Chang Liang of air-conditioning, air-conditioning is not performed
Shut down and normally run, now the outer blower fan of air-conditioning blows wind high, and compressor is then turned on after outer blower fan opening time 5s, frequency converter
Detection outdoor environment temperature simultaneously enters external environment temperature limit frequency pattern, and other protections are still effective；
(4), when outdoor coil temperature sensor failure：
Under the pattern freezed or dehumidify, the indoor display device E2 Chang Liang of air-conditioning, if the anti-overheat of the external disk of air-conditioning is protected
Shield is invalid, and air-conditioning continues to run until appearance once anti-overtemperature protection, then confirm outer coil pipe temperature sensor fault, and air-conditioning is held
Row is shut down, if the anti-overtemperature protection of the external disk of air-conditioning effectively, confirms outer coil pipe temperature sensor fault, air-conditioning performs shutdown；
Heat or air vent mode under, the indoor display device E2 Chang Liang of air-conditioning, frequency converter detection outdoor environment temperature simultaneously
Frequency pattern is limited into external environment temperature, when frequency converter detects external environment temperature more than or equal to the default reference temperature value of frequency converter
At 7 DEG C, then air-conditioning continues to heat, and maximum running frequency is FT1；If external environment temperature is less than 7 DEG C of reference temperature value, confirm
Outer coil pipe temperature sensor fault, air-conditioning performs shutdown, and timely external environment temperature is increased beyond 7 DEG C of reference temperature value, also inextensive
Replicate heat；
(5), when compressor exhaust temperature sensor failure：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device F4 Chang Liang of air-conditioning, air-conditioning confirms pressure
Contracting machine exhaust gas temperature sensor breaks down, and performs shutdown；
(6), when compressor return air temperature sensor breaks down：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device FA Chang Liang of air-conditioning, air-conditioning is not performed
Shut down, and continue normal operation；
(7), when having two air conditioning sensors while when breaking down：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device of air-conditioning is paid the utmost attention to quote generation
The failure code of that sensor of shutdown occurs during failure, if all without occurring stopping during two sensor failures
Machine, then the indoor display device of air-conditioning quotes the failure code of one of sensor at random, then air-conditioning performs shutdown, this
The situation that air-conditioning resumes operation afterwards needs to recover normal situation according to two fault sensors to be determined；
(8), when the air conditioning sensor for having three or more than three is while when breaking down：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device of air-conditioning quotes one of them at random
Failure code, air-conditioning performs shutdown, when the number of sensors for breaking down drops to two, now just considers that air-conditioning recovers fortune
Capable situation, the indoor display device of air-conditioning again can according to two sensor failures when situation is reported to be shown, this
When air-conditioning situation about resuming operation need to recover normal situations according to two fault sensors to be determined.
When outdoor coil temperature sensor failure, under the pattern of refrigeration or dehumidifying, the anti-overtemperature protection of external disk of air-conditioning
The highest frequency of compressor operating is the first platform frequency FT1 when invalid, and the first described platform frequency is the frequency of compressor
During staged is elevated, the frequency of the first ladder.
When indoor coil pipe sensor or exhaust gas temperature sensor break down, inner blower in a heating mode
Must be in time period t4It is interior to perform shut down action, the time period t4It is 0~1min.
When outdoor coil temperature sensor failure, under heating mode, if external environment temperature is less than reference temperature value a
When, inner blower must be in time period t5It is interior to perform shut down action, the time period t5It is 0~1min.
When indoor environment temperature sensor or indoor coil pipe sensor or outdoor environment temperature sensor or outdoor
When coil temperature sensor or compressor exhaust temperature sensor or compressor return air temperature sensor break down, in system
Under the pattern of cold, dehumidifying or ventilation, only inner blower itself fail, otherwise inner blower must be according to the wind speed of setting
Operation.
When indoor environment temperature sensor or outdoor environment temperature sensor or compressor return air temperature sensor occur
During failure, under heating mode, inner blower performs the action that shuts down.
Two air conditioning sensors break down simultaneously or the air conditioning sensor of more than three is while when breaking down,
The indoor set of air-conditioning can send stopping signal to outdoor unit, and now inner blower must be in time period t6It is interior to perform stopping
Motion, the time period t5It is 0~1min.
The indoor display device can be the display module in room conditioning on machine housing face-plate, or airconditioning control
Display module on display module in remote control, or air-conditioning internal machine inner control panel.
When outdoor environment temperature sensor failure, compressor is detected first when entering external environment temperature limit frequency pattern
To external environment temperature for compressor just open when outer coil temperature.
Other described protections include：Overcurrent protection, voltage overload protection, the anti-freeze protection under refrigeration mode,
High temperature protection under antioverloading protection, heating mode etc..
When the sensor for breaking down is two interior sensors, the situation that the air-conditioning resumes operation is needed according to event
The specific situation that barrier sensor recovers normal situation to be determined includes：
(1), when the sensor for breaking down is two interior sensors, the indoor display device prioritizing selection of air-conditioning shows
Show the failure code of indoor coil pipe sensor, if one of interior sensor recovers normal, now air-conditioning recovers
Operation, the specific running status of air-conditioning is run according to method of operation when not recovering normal that sensor failure, such as
Really two interior sensors all recover normal, and air-conditioning resumes operation, and indoor display device no longer shows failure code；
(2), when the sensor for breaking down includes an interior sensor and an outdoor sensor, the interior of air-conditioning
Occur that the failure code of that sensor of shutdown is shown when display device is paid the utmost attention to break down, if two
Shut down all without appearance during sensor failure, then the indoor one of sensor of display device random display of air-conditioning
Failure code, if only interior sensor recovers normal, now air-conditioning does not resume operation, until another outdoor sensor is extensive
Multiple normal, air-conditioning just recovers normal operation, if only outdoor sensor recovers normal, now air-conditioning resumes operation, air-conditioning tool
The running status of body is run according to the method for operation do not recovered when normal interior sensor breaks down, if interior sensor
All recover normal with outdoor sensor, air-conditioning resumes operation, and indoor display device no longer shows failure code；
(3), when the sensor for breaking down is two outdoor sensors, the indoor display device of air-conditioning can prioritizing selection
The failure code of that sensor of shutdown can be caused to be shown when breaking down, only when the sensing of display failure code
When device recovers normal, air-conditioning just resumes operation, and the specific running status of air-conditioning is not according to recovering normal that outdoor sensing
Method of operation operation when device breaks down, if all without the phenomenon for occurring shutting down when two outdoor sensors break down,
So indoor display device will the one of outdoor sensor of random display failure code, only when display failure code
Sensor recover it is normal when, air-conditioning just resumes operation, the specific running status of air-conditioning according to do not recover normally that outdoor
Method of operation operation during sensor failure, if interior sensor and outdoor sensor all recover normal, air-conditioning recovers
Operation, indoor display device no longer shows failure code.
Following combination instantiation illustrates that transducer air conditioning recovers when having two air conditioning sensors while when breaking down
The method of operation：
When the sensor for breaking down is indoor environment temperature sensor and indoor coil pipe sensor, if only
Indoor environment temperature sensor recovers normal, and now air-conditioning resumes operation, and the specific running status of air-conditioning is according to indoor coil temperature
Method of operation operation during degree sensor failure, if indoor environment temperature sensor and indoor coil pipe sensor are all
Recover normal, air-conditioning resumes operation, and indoor display device no longer reports failure code.
When the sensor for breaking down includes indoor environment temperature sensor and outdoor environment temperature sensor, if only
There is indoor environment temperature sensor to recover normal, now air-conditioning does not resume operation, until outdoor environment temperature sensor device recovers
Normally, air-conditioning just recovers normal operation, if only outdoor environment temperature sensor device recovers normal, now air-conditioning recovers fortune
OK, method of operation operation when the specific running status of air-conditioning is according to indoor environment temperature sensor failure, if indoor
Environment temperature sensor and outdoor environment temperature sensor all recover normal, and air-conditioning resumes operation, and indoor display device is no longer reported
Failure code.
When the sensor for breaking down is outdoor environment temperature sensor and outdoor coil temperature sensor, indoor display dress
The failure code for putting meeting prioritizing selection outdoor coil temperature sensor is shown, only when outdoor coil temperature sensor recovers
When normal, air-conditioning just resumes operation, fortune when the specific running status of air-conditioning is according to outdoor environment temperature sensor failure
Line mode runs, if outdoor environment temperature sensor and outdoor coil temperature sensor all recover normal, air-conditioning resumes operation,
Indoor display device no longer shows failure code.
When the sensor for breaking down is outdoor environment temperature sensor and compressor return air temperature sensor, indoor display
The device random display failure code of compressor return air temperature sensor, only when compressor return air temperature sensor recovers just
Chang Shi, air-conditioning just resumes operation, and the specific running status of air-conditioning occurs according to normal outdoor environment temperature sensor is not recovered
Method of operation operation during failure, if outdoor environment temperature sensor and compressor return air temperature sensor all recover normal,
Air-conditioning resumes operation, and indoor display device no longer shows failure code.
Following combination instantiation illustrates that transducer air conditioning recovers when having three air conditioning sensors while when breaking down
The method of operation：When indoor environment temperature sensor, outdoor environment temperature sensor and outdoor coil temperature sensor simultaneously
When breaking down, under the pattern freezed, heat, dehumidify or divulge information, air-conditioning performs shutdown, if indoor environment temperature is passed
Sensor recovers normal, and now the failure code of indoor display device meeting prioritizing selection outdoor coil temperature sensor is shown,
Only when outdoor coil temperature sensor also recovers normal, air-conditioning just resumes operation, and the specific running status of air-conditioning is according to room
Method of operation operation when external environment temperature sensor breaks down, if outdoor environment temperature sensor and outdoor coil temperature
Sensor all recovers normal, and air-conditioning resumes operation, and indoor display device no longer shows failure code.
Claims (18)
1. convertible frequency air-conditioner sensor fault processing method, the sensor of convertible frequency air-conditioner includes interior sensor and outdoor sensor,
The interior sensor includes indoor environment temperature sensor, indoor coil pipe sensor, and the outdoor sensor includes room
External environment temperature sensor, outdoor coil temperature sensor, compressor exhaust temperature sensor and compressor return air temperature are passed
Sensor, when one or several sensor failures of convertible frequency air-conditioner, convertible frequency air-conditioner is carried out by the following method：
(1), when indoor environment temperature sensor failure：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device E1 Chang Liang of air-conditioning, air-conditioning is not performed and stopped
Machine, now the running frequency of compressor is 70% of the maximum allowable frequency under present behavior, and other protections are still effective；
(2), when indoor coil pipe sensor failure：
Under refrigeration or dehumidification mode, the indoor display device E3 Chang Liang of air-conditioning, now conventional anti-freeze defencive function is no longer
Effectively, compressor is according to continuously running more than time t1Dead time t afterwards2To circulate execution；
Under the pattern for heating or divulging information, the indoor display device E3 Chang Liang of air-conditioning, air-conditioning confirms indoor coil pipe sensor
Failure simultaneously performs shutdown；
(3), when outdoor environment temperature sensor failure：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device F6 Chang Liang of air-conditioning, air-conditioning does not perform shutdown
And normally run, now the outer blower fan of air-conditioning blows wind high, and compressor is in outer blower fan opening time t3After be then turned on, frequency converter detection
Outdoor environment temperature simultaneously enters external environment temperature limit frequency pattern, and other protections are still effective；
(4), when outdoor coil temperature sensor failure：
Under the pattern freezed or dehumidify, the indoor display device E2 Chang Liang of air-conditioning, if the anti-overtemperature protection of the external disk of air-conditioning without
Effect, air-conditioning continues to run until appearance once anti-overtemperature protection, then confirm outer coil pipe temperature sensor fault, and air-conditioning is performed and stopped
Machine, if the anti-overtemperature protection of the external disk of air-conditioning effectively, confirms outer coil pipe temperature sensor fault, air-conditioning performs shutdown；
Heat or air vent mode under, the indoor display device E2 Chang Liang of air-conditioning, frequency converter detection outdoor environment temperature simultaneously enter
External environment temperature limits frequency pattern, when frequency converter detects external environment temperature more than or equal to the default reference temperature value a of frequency converter,
Then air-conditioning continues to heat, and maximum running frequency is FT1；If external environment temperature is less than reference temperature value a, outer coil pipe temperature is confirmed
Degree sensor fault, air-conditioning performs shutdown, and timely external environment temperature is increased beyond reference temperature value a, does not also recover to heat；
(5), when compressor exhaust temperature sensor failure：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device F4 Chang Liang of air-conditioning, air-conditioning confirms compressor
Exhaust gas temperature sensor breaks down, and performs shutdown；
(6), when compressor return air temperature sensor breaks down：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device FA Chang Liang of air-conditioning, air-conditioning is not performed and stopped
Machine, and continue normal operation；
(7), when having two air conditioning sensors while when breaking down：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device of air-conditioning is paid the utmost attention to quote and is broken down
When occur shutdown that sensor failure code, if during two sensor failures all without occur shut down,
The indoor display device of so air-conditioning quotes the failure code of one of sensor at random, and then air-conditioning performs shutdown, hereafter
The situation that air-conditioning resumes operation needs to recover normal situation according to two fault sensors to be determined；
(8), when the air conditioning sensor for having three or more than three is while when breaking down：
Under the pattern freezed, heat, dehumidify or divulge information, the indoor display device of air-conditioning quotes one of failure at random
Code, air-conditioning performs shutdown, when the number of sensors for breaking down drops to two, now just considers what air-conditioning resumed operation
Situation, the indoor display device of air-conditioning again can according to two sensor failures when situation is reported to be shown, this space-time
The situation that tune resumes operation needs to recover normal situation according to two fault sensors to be determined.
2. convertible frequency air-conditioner sensor fault processing method according to claim 1, it is characterised in that：Work as outdoor coil temperature
Under the pattern of sensor failure, refrigeration or dehumidifying, the highest of compressor operating when the anti-overtemperature protection of external disk of air-conditioning is invalid
Frequency is the first platform frequency FT1.
3. convertible frequency air-conditioner sensor fault processing method according to claim 1, it is characterised in that：Work as indoor coil pipe
When sensor or exhaust gas temperature sensor break down, inner blower must be in time period t in a heating mode4Interior execution stops
Only motion.
4. convertible frequency air-conditioner sensor fault processing method according to claim 3, it is characterised in that：The time period t4It is 0
~1min.
5. convertible frequency air-conditioner sensor fault processing method according to claim 1, it is characterised in that：Work as outdoor coil temperature
During sensor failure, under heating mode, if external environment temperature is less than reference temperature value a, inner blower must be in the time period
t5It is interior to perform the action that shuts down.
6. convertible frequency air-conditioner sensor fault processing method according to claim 5, it is characterised in that：The time period t5It is 0
~1min.
7. convertible frequency air-conditioner sensor fault processing method according to claim 1, it is characterised in that：Work as indoor environment temperature
Sensor or indoor coil pipe sensor or outdoor environment temperature sensor or outdoor coil temperature sensor or compression
When machine exhaust gas temperature sensor or compressor return air temperature sensor, under the pattern of refrigeration, dehumidifying or ventilation, only
Inner blower itself fail, otherwise inner blower must run according to the wind speed of setting.
8. convertible frequency air-conditioner sensor fault processing method according to claim 1, it is characterised in that：Work as indoor environment temperature
When sensor or outdoor environment temperature sensor or compressor return air temperature sensor break down, under heating mode, interior wind
Machine performs the action that shuts down.
9. convertible frequency air-conditioner sensor fault processing method according to claim 1, it is characterised in that：Two air conditioning sensors
Break down simultaneously or the air conditioning sensor of more than three is while when breaking down, the indoor set of air-conditioning can be sent out to outdoor unit
Stopping signal is sent, now inner blower is in time period t6It is interior to perform shut down action, the time period t6It is 0~1min.
10. convertible frequency air-conditioner sensor fault processing method according to claim 1, it is characterised in that：The indoor display
Device can be the display module on the display module on air-conditioning internal machine housing face-plate, or airconditioning control remote control, or
Display module on air-conditioning internal machine inner control panel.
11. convertible frequency air-conditioner sensor fault processing methods according to claim 1, it is characterised in that：When outdoor environment temperature
Degree sensor failure when, compressor enter external environment temperature limit frequency pattern when first it is detected that external environment temperature for compression
Outer coil temperature when machine is just opened.
12. convertible frequency air-conditioner sensor fault processing methods according to claim 1, it is characterised in that：When indoor coil temperature
During degree sensor failure, the time t that the compressor operating exceedes1It is 30min, the time t of pause2It is 5min.
13. convertible frequency air-conditioner sensor fault processing methods according to claim 1, it is characterised in that：When outdoor environment temperature
During degree sensor failure, the opening time t of the outer blower fan3It is 5s.
14. convertible frequency air-conditioner sensor fault processing methods according to claim 1, it is characterised in that：When outdoor coil pipe used temperature
During degree sensor failure, in a heating mode, frequency converter preset reference temperature value a is 7 DEG C.
15. convertible frequency air-conditioner sensor fault processing methods according to claim 1, it is characterised in that：When there is two air-conditionings
Sensor breaks down simultaneously when, situation that the air-conditioning resumes operation need according to fault sensor recover normal situation come
The specific situation being determined includes：
(1), when the sensor for breaking down is two interior sensors, if one of interior sensor recovers normal,
Air-conditioning just resumes operation；If two interior sensors all recover normal, air-conditioning normally runs, and indoor display device no longer reports event
Barrier code；
(2), when the sensor for breaking down includes an interior sensor and an outdoor sensor, outdoor biography is only occurred
Sensor recovers normal, and air-conditioning can just resume operation；If interior sensor recovers normal, air-conditioning does not resume operation, such as
Fruit interior sensor and outdoor sensor all recover normal, and air-conditioning normally runs, and indoor display device no longer reports failure code；
(3), when the sensor for breaking down is two outdoor sensors, only when the sensor of display failure code recovers just
Chang Shi, air-conditioning just resumes operation；If interior sensor and outdoor sensor all recover normal, air-conditioning normally runs, and interior is aobvious
Showing device no longer reports failure code.
16. convertible frequency air-conditioner sensor fault processing methods according to claim 15, it is characterised in that：When what is broken down
When sensor is two interior sensors, if one of interior sensor recovers normal, the operation that air-conditioning resumes operation
State is run according to method of operation when not recovering normal that sensor failure.
17. convertible frequency air-conditioner sensor fault processing methods according to claim 15, it is characterised in that：When what is broken down
When sensor includes an interior sensor and an outdoor sensor, if outdoor sensor recovers normal, air-conditioning
The running status resumed operation is run according to the method for operation do not recovered when normal interior sensor breaks down.
18. convertible frequency air-conditioner sensor fault processing methods according to claim 15, it is characterised in that：When what is broken down
When sensor is two outdoor sensors, if the sensor of display failure code recovers normal, the operation that air-conditioning resumes operation
State is run according to the method for operation do not recovered when normal that outdoor sensor breaks down.
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| CN107894121A (en) * | 2017-10-27 | 2018-04-10 | 广东美的暖通设备有限公司 | Detection method, compressor and the electric equipment of compressor temperature sensor |
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| CN111174475A (en) * | 2020-01-09 | 2020-05-19 | 珠海格力电器股份有限公司 | Condensing unit dual-system closed-loop control method and device and condensing unit |
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| WO2021228271A1 (en) * | 2020-07-08 | 2021-11-18 | 青岛海尔空调电子有限公司 | Emergency operation method for air-conditioning unit |
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Inventor after: Huang Ning Inventor after: Zheng Danlu Inventor after: Zhao Huhai Inventor before: Huang Ning Inventor before: Zheng Danlu |
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Effective date of registration: 20180117 Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Applicant after: AUX air conditioning Limited by Share Ltd Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Applicant before: Ningbo AUX Group. |
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